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U-4_6ML5DPQ_XPQ Service Manual

Contents

1. THERMISTOR REFRIGERANT ADAPTOR FOR WIRING RyF1 3 MAGNETIC RELAY MAGNETIC RMINAL BOARD R C RELAY DRAIN MAGNETIC RELAY PACITOR FAN RANSFORMER 220V 27 V FU 5 USE 250V 10A ERMINAL STRIP POWER XIA 2 CONNECTOR WIRING ADAPTO ELD USE AL STRIP CONTROL TERMINAL STRIP GHT EMITTING DIODE LECTRONC EXPANSION VALVE ECTOR FOR OPTIONAL PARTS a GREEN OPTIONAL ARIS CONNECTOR WIRING ADAPTO CONNECTOR WIRING ADAPTO STOR ORAN PUFP EATER ELECTRONICAL APPENDICES 02 ARTH LEAK DETECTOR KIR MAGNETIC RELAY RIT HERMISTOR AIR 1 USE COPPER CONDUCTORS ONLY 2 WHEN USING THE CENTRAL REMOTE CONTROLLER SEE MANUAL FOR CONNECTION TO THE UNIT 3 WHEN INSTALLING THE ELECTRIC HEATER CHANGE THE WIRING FOR THE HEATER CIRCUIT THE MAIN POWER SUPPLY HAS TO BE SUPPLIED INDEPENDENTLY 4 FOR HIGH OPERATION CHANGE THE WIRING CONNECTION OF AS SHOWN ON THE WIRING DIAGRAM 5 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF OPERATION CAN BE SELECTED BY THE REMOTE CONTROLLER SEE INSTALLATION MANUAL FOR MORE DETAILS 238 2 23736 1 Appendix Wiring Diagrams Panasonic S 40 50 63 80 100 125EM3HPS 58185045 9389 AVHO AHO MOTISA MIA
2. 254 Appendix Inverter PC board 0 4 5 6ML5DPQ WH T SA 2405 401 cags C Teese Prag nd E Rio R ee ub 2385 7 646 W Be Pe V 2 ci nse C514 E 8510 E 512 PHte R518 ASi7R516 iai ie LI JPEZO JPPET 5 a a 858 354 GON LL Bes page 58 S 153 Fed Sed 982 FH R38SV2ElEPF n xesn Prxe7h sRXPBR vis E ves vss OF cine 25 V Appendix 255 Method of Replacing the Inverter s Power Transistors Modules Urban Multi ML5 Mini UM Heat Pump Power module checking When using the digital type of multiple tester make measurement in diode check mode m less than 0 3V It may take time to 8 determine the voltage due to capacitor charge or else less than 0 3V including 0 3 to 0 7V including 0 3 to 0 7V including There needs to be none of each value variation The following abnormalities are also doubted besides the PC board abnormality Faulty compressor gr
3. 4 Lo o 7 777 TE ee Ne ee 4 SS G A 12 gt To Te CN C T 5 1 Voc V3053 Output Voltage VL 253 Appendix Method of Replacing the Inverter s Power Transistors Modules Urban Multi ML5 Mini UM Heat Pump 7 Method of Replacing the Inverter s Power Transistors Modules Checking failures in power semiconductors mounted on inverter PC board Check the power semiconductors mounted on the inverter PC board by the use of a multiple tester Items to be prepared e Multiple tester Prepare the digital type of multiple tester with diode check function Preparation e Turn OFF the power supply Then after a lapse of 10 minutes or more make measurement of resistance e measurement disconnect all connectors and terminals Inverter PC board 0 4 5 6ML5XPQ E gt E D lii li D Thi J
4. BS4 TEST RESET DIP switches 051 1 051 2 Sets the address again when the wiring is changed or an indoor unit is added Performs the test run Used at field set Changes the set mode LED indicator status Turn off X on D Flicker Turn on or off The LED indicator status shown at left indicates the status at factory set 86 Test Operation Panasonic Field Setting 3 Field Setting 3 1 Field Setting from Remote Controller Individual function of indoor unit can be changed from the remote controller At the time of installation or after service inspection repair make the local setting in accordance with the following description Wrong setting may cause malfunction When optional accessory is mounted on the indoor unit setting for the indoor unit may be required to change Refer to information in the option handbook 3 1 1 Wired Remote Controller CZ 02RT11P Test Operation Co UM Og V0292 When in the normal mode press the button for a minimum of four seconds and the FIELD SET MODE is entered Select the desired MODE NO with the button 2 During group control when setting by each indoor unit mode No 20 22 and 23 have been selected push the button 3 and select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group Push the upper bu
5. 68 6 4 Freeze Prevention MO 70 6 5 View of Operations of Swing Flaps 71 6 6 Electronic Expansion Valve UR RE RR RR D DR ai aid 72 6 7 Hot Start Control In Heating Operation 72 Part 6 Test LO 1 Test Operation 74 1 1 Procedure and 74 1 2 Operation when Power is Turned On 85 Outdoor Unit PC Board ers 86 87 31 Field Setting from Remote Controller 87 3 2 Field Setting from Outdoor 104 Part 7 123 1 Symptom based Troubleshooting 125 2 Troubleshooting by Remote Controller 128 21 ThelNSPEGTION euin 128 2 2 Self diagnosis by Wired Remote Controller 129 2 3 Self diagnosis by Wireless Remote Controller 130 2 4 Operation of the Remote Controller s Inspection Test Operation Button
6. TR cR X2M XMS COLORS H BOX UJ LU BLK BLACK RN YN Wiring Diagrams ADAPTOR FOR WIRING 230V 20 63 CLASS 3 OPERATION Ae M 97 indoor DU pl ro 2 dig RG 22 0 6261 00 ee 26 402 Appendix SWITCH T ESP OPERATION vua 7 sl Es Ej X5 uw HGHESP OPERATION Fue 20 32 CLASS 22 36 CLASS XBAX4AX5A THER ISTOR NOTE 5 INPUT gt FROM OUTSIDE RAL REMOTE ROLLER NOTE 7 WIRED REMOTE CONTROLLER FPET ED CIRCUIT BOARD THER ISTOR REFRIGER ANT ADAPTOR AL BOARD
7. 130 2 4 Operation of the Remote Controller s Inspection TEST OPE ALON Tee 132 2 5 Remote Controller Service Mode 133 2 6 Remote Controller Self Diagnosis Function 135 Troubleshooting by Indication on the Remote Controller 142 3 1 AG Indoor Unit Error of External Protection Device 142 3 2 Indoor Unit PC Board 143 3 3 Indoor Unit Malfunction of Drain Level Control System S1L 144 3 4 52 Indoor Unit Fan Motor M1F Lock Overload 146 3 5 Indoor Unit Malfunction of Swing Flap Motor M15 147 3 6 Abnormal Power Supply 149 3 7 AS Indoor Unit Malfunction of Moving Part of Electronic Expansion Valve e ELSE dips 150 3 8 AF Indoor Unit Drain Level above Limit 152 3 9 Indoor Unit Malfunction of Capacity Determination Device 153 3 10 7 Indoor Unit Failure of Transmission Between Indoor unit PC Board and Fan PC 154 3 11 C4 Indoor Unit Malfunction of Thermistor R2T for 156 3 12 5 Indoor Unit Malfunction of Thermistor for Gas
8. sese 132 2 5 Remote Controller Service Mode 133 2 6 Remote Controller Self Diagnosis Function 135 Troubleshooting by Indication on the Remote Controller 142 3 1 Indoor Unit Error of External Protection Device 142 3 2 Indoor Unit PC Board 143 3 3 22 Indoor Unit Malfunction of Drain Level Control System 511 144 3 4 55 Indoor Unit Fan Motor M1F Lock Overload 146 3 5 A Indoor Unit Malfunction of Swing Flap Motor M15 147 3 6 Abnormal Power Supply 149 3 7 AS Indoor Unit Malfunction of Moving Part of Electronic Expansion 150 3 8 Ae Indoor Unit Drain Level above 152 3 9 Fu Indoor Unit Malfunction of Capacity Determination Device 153 Table of Contents Panasonic Table of Contents 3 1044 Indoor Unit Failure of Transmission Between Indoor unit PC Board and Fan PC 3 11 5 Indoor Unit Malfunction of Thermistor R2T MEETS 3 12 4 Indoor Unit Malfunction of Thermistor for Gas Pipes 3 13 X2 Indoor U
9. 253 PROLECHON 60 Pump down Residual Operation 57 R Refrigerant 2 40 Refrigerant Cylinders 260 Refrigerant Overcharged 173 Restart Standby 58 5 SEVICE TOOS aciei i 261 Setting by Dip Switches 104 Setting by pushbutton switches 106 Setting of Low Noise Operation and Demand ALON 115 Setting of Refrigerant Additional Charging cc 119 Special 58 Startup GCOFLEOL s poat sat i 58 Stopping Operation 59 OWING eo ides 71 Symptom based Troubleshooting 125 System is not Set yet 204 T Test Operation Procedure and Outline 74 Thermistor Resistance Temperature Characteristics 251 Thermostat Sensor in Remote Controller 68 U gt 189 191 U 193 Po 194 BRNO T MT 196 197 ee eer ee ee EM LEER 198 P
10. DN DN Controller Display Applicable All indoor unit models Models Method of In case of controlling with 2 remote controller check the system using microcomputer if signal Malfunction transmission between indoor unit and remote controller main and sub is normal Detection Malfunction Normal transmission does not continue for specified period Decision Conditions Supposed m Malfunction of transmission between main and sub remote controller Causes Connection between sub remote controllers Troubleshooting Troubleshooting B Defect of remote controller PC board Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred 551 2 of remote controller PC boards Set SS1 to MAIN the is set to MAIN power supply off once and then back on SS1 of both remote controllers is set to SUB Turn the power off and then back on If a malfunction occurs replace the remote controller PC board Set one remote controller to MAIN the power supply off once and then back on V2825 197 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 47 45 Malfunction of Transmission between Indoor and Outdoor Units in the Same System Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed
11. 119 check operation 121 simplified remote controller 90 BROZGO RU 90 system is not Set yet 204 T thermostat sensor in remote controller 68 vero gro EP 68 heating HE 69 torque 263 troubleshooting by remote controller 128 POWE 74 weigher for refrigerant charge 266 wired remote controller 87 IV Urban Multi ML5 Mini Heat Pump wireless remote controller indoor unit 89 CZ O1RW type 89 CZ 02RW TV DG eoi coe ie cheer ee 89 wiring diagrams 227 Drawings amp Flow Charts
12. a Actuation of nign pressure swith o Actuation oflow pressure sensor Jie o Compressormotoriook E6 o Standard compressor lock or over current Malfunction of outdoor unit fan motor E9 o Malfunction of moving part of electronic expansion valve Y1E Y3E F8 Abnormal discharge pipe temperature F6 o Refrigerant overcharged Failure of high pressure switch H o Actuation of low pressure switch 47 Abnormal outdoor fan motor signal NE uw Iw Malfunction of thermistor R1T for outdoor air loose connection 174 disconnection short circuit failure Current sensor malfunction Malfunction of discharge pipe thermistor R2T loose connection 175 disconnection short circuit failure Malfunction of thermistor R5T for suction pipe loose connection 176 disconnection short circuit failure Malfunction of thermistor R6T for heat exchanger loose connection 177 disconnection short circuit failure 176 179 i80 8 182 183 184 185 Inverter start up error 186 J J J J J J J J 2 3 5 6 7 9 0 1 4 5 8 9 L L L L L L 136 Troubleshooting Panasonic Troubleshooting by Remote Controller O ON e OFF Blink Malfunction Malfunction contents Page code lamp Outdoor Unit LA o Malfunction of power unit D o Malfunction of trans
13. All indoor unit models Check data from E2PROM When data could be correctly received from the E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off B Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution Turn power supply OFF then power ON again Does YES the system return External factor other than to normal malfunction for example noise etc Replace the indoor unit PC oard 2777 143 Troubleshooting by Indication on the Remote Controller 33 n Urban Multi ML5 Mini UM Heat Pump Indoor Unit Malfunction of Drain Level Control System S1L Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 144 lt 4 LM3 FXSQ EM3 TM3 Option 200 250EM3 Option Option By float switch OFF detection When rise of water level is not a condition and the float switch goes OFF 220 240V power supply is not provided Defect of float switch or short circuit connector Defect of drain pump Drain clogging upward slope etc Defect of indoor unit PC board Loose connection of connector Troubleshooting Panasonic Troubleshooting Troubleshooting Troubl
14. m 200 EE EEA E TTA 201 unitum 202 206 E et ERES 204 Sig 205 Panasonic Drawings amp Flow Charts A abnormal discharge pipe temperature 172 abnormal power supply voltage 149 actuation of high pressure switch 164 actuation of low pressure sensor 166 address duplication of central remote controller 201 address duplication improper setting 211 C centralized control group no setting 100 CZ O2RIT11P type 100 GZ OTIRW 101 CZ O2RW AO te oie ta t aes 101 group no setting example 101 check for causes of drop in low pressure 219 check for causes of rise in high pressure 218 check for fan motor connector 220 tut TE 82 check operation not executed 193 check work prior to turn power supply on 74 compressor motor lock 168 contents of control modes 102 how to select operation mode 103 cooling operation fan control 52 D display under host computer integrate control blinks repeats double blink
15. JLIHM LHM 31178 aad 41d 540109 T AHL GSHOVLLVY IWANVIN NOILVTIVLSNI SHL OL 83938 STIVI3Q NI H3TIOHINOO 310W3H A8 Q3193 138 38 NYO 1OHLNOO ASO NO 440 3dis1n0O S3HIM LAdNI IHL SNILOANNOO N3HM WANVI NOILVTIVLSNI Q3HOV LLV AHL NI LINN 3H L OL LO3NNOO H3TIOHINOO SLOWSY 1VHIN3O DNISN ISYONI 2 ONIYIM 91915 HOLO3NNOO 09 1 3Ad001 3Ad08 3 469 AINO OdWOD 13 SALON GNS NIVW 5 41915 1 H3MOd IN LX diNfid NIVHG HOLOIN 41915 TVNIINH3LL HOLOW HOLIOV3H OILSNOVIN OILANDVIN JIN HOLIMS HOLO3T13S 155 3odiH8 dev 41 HOLSIINH3HL LLY HOLIMS 49074 116 N33H9 HOLINOW 39435 HJTIOHLINOO SLOWSY Q3HIM HIV 39HVHOSIQ 30019 9NLLLINS u3ldVdv HOLO3NNOO VSEX HOLISINH3HL Lyd 9 1 ISNA ONIHIM Svo HOLSINYSHL LEY 9 1 ISNA NEA HOLIO3NNOO v X HOLSIWH3HI YS L 35054 Nes 14405 YIMOd uiv NOLLONS HOLSINYSHL LEY VSL L a
16. a f Quantity o Beh 1100 1400 16 00 Air Flow Rate Cooling Low 60 60 85 no 1200 Quantity a a es iin D14B20 D14B20 2D14B13 2D14B13 2D14B20 2D14B20 Motor ee ut high Refrigerant RATOA Cooling Pressure dBh 320 0 zo 50 50 Flare connection LLL Diamee mm 64 64 64 64 64 95 Piping Flare connection Standard Accessories Installation and operation manual Insulation for fitting Drain hose Clamps Screws Level adjustment screw Washer Nominal cooling capacities are based indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB equivalent refrigerant piping 7 5m horizontal Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 7 5m horizontal Capacities are net includinga deduction for cooling an addition for heating for indoor fan motor heat Sound pressure levels are measured at 220V Heat Exchanger Liquid OD Specifications 23 Specifications Urban Multi ML5 Mini UM Heat Pump Concealed Floor Standing Type S 2ORNGHPS ened Capaciy Nominal Casing Dimensions Unt mm wo wo 339 13b Dem m zo 29 29 wm wW 9 3 83
17. 217 display under host computer integrate control blinks repeats single blink 214 display of sensor and address data 134 drain level above limit 152 drain pump control 65 when the float switch is tripped and AF is displayed on the remote controller 66 when the float switch is tripped during heating Rem 66 when the float switch is tripped while the cooling thermostat is 65 when the float switch is tripped while the cooling thermostat is on 65 E error of external protection device 142 excessive number of indoor units 200 F failure of combination between indoor unit pc board and fan pc board tt tete 158 failure of transmission between indoor unit pc board and fan board iuc 154 fan motor lock overload 146 freeze prevention 70 functional parts layout 44 Drawings amp Flow Charts H high pressure protection control 60 high voltage of capacitor in main inverter 188 improper combination of optional controllers for
18. GzomeuiP _CZOIKPLIIP _ CZO2KPLIIP_ TN Pa 28 Wa w _ o o e s Damp m o 89 8o 9 89 10 Specifications Panasonic Specifications Screws for fixing the paper pattern for installation Washer for hanging bracket Installation and operation manual Paper Standard Accessories pattern for installation Insulation fitting Drain hose Nominal cooling capacities are based on indoor temperature 270CDB 190CWB outdoor temperature 350CDB equivalent refrigerant piping 8m level difference Om Nominal heating capacities are based on indoor temperature 200CDB outdoor temperature 70CDB 60CWB equivalent refrigerant piping 8m level difference Om Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Specifications 11 Specifications Urban Multi ML5 Mini UM Heat Pump Ceiling Mounted Cassette Type Double Flow Cooing w 99 y 14 00 Capacity 10 00 1600 Powerinput Cooling 0 161 0 209 0 256 Nominal 0126 0 176 0223 Colour Non painted idis Galvanised e Height Packing Width 1460 1808 1808 Depth Dimensions Height Unit Width mm 1180 1670 1670 Deh mm _ 80 80 Unit lg 8 Weg Packe
19. lt o lo HiS EIS EIS O O z 5 Gol 8 co 5 co NS a RN AR R Fa Ra REN RG lt x SSS 7 AY I k i i FD SE 527 amp Ye jJ COSS is S 5 E or 2 O Q O 2 lt LU aS A Q D E He 02 gt LLI kK N MARKING COLOR GREEN THERMISTOR SUCTION 2 Refrigerant Circuit 46 Panasonic Function Part 5 Function MOS 48 ABASIC COMMON 49 2 1 Normal 49 2 2 Gompressor Pl GoOntrol a 50 2 3 Electronic Expansion Valve 51 2 4 Cooling Operation Fan 52 CONTO 53 SX AE 53 9 2 Oil Retu uri
20. 39 s elap 10 sy F HOLIMS NIYN usUd nba 4203 Jo aul 941 0 esnj 341 pue 121185 941 1101801 0 8215 ag 8 sJ012npu02 184402 950 Z uO Te 1219 21412945 2 6511219 108 apnjou 01 198100119 pue 1920 919271 440 N 10 101 100 ale pue 4100 sapinb 0011 1290002 0 510104 249 96 919 UMOUS BULJIM L 941 1 1snu 91 15 241 uO 83804 89p02 10001100 pue 920 9 4 21 442 941 1 99 1945 ziun 9 paJno0Jd 39 01 5 211910 PUL siuaguoduo2 bUIJIM 910 Appendix 230 Panasonic 2 3 5 20 25 32 6 Indoor Unit 1 50 2 230V 20 25 3263 CLASS 22 28 36 71 CLASS TR 211 2225 5 2 ilr 0 c CF mI A ES Za indoor SWITCH BOX T xs RT RN RW XM nd gig a XGA XPA 9 2 7 Fs MS YE i 2 LH egy FELD WIRING COLORS BLK BLACK L LIVE BLU BLUE 5 55 2 o WIRE CLAMP sin PROTECTIVE EARTH SCREW due YLW YELLOW LOAT SWITCH R2T R3T Wiring Diagrams INPUT FROM OUTSIDE Note3 WRED REMOTE CONTROLLER RECEIVER DISPLAY UNIT LIGHT EMIT TING DIODE ON REDI MIT SWITCH SWIN
21. E 205 malfunction of thermistor R417 179 malfunction of thermistor 177 malfunction of thermistor R1T for outdoor air 174 malfunction of thermistor R1T for suction air 159 malfunction of thermistor R2T for heat exchanger 156 malfunction of thermistor R3T for gas pipes 157 malfunction of thermistor R3T R5T for 176 malfunction of thermistor R7T for outdoor unit liquid DIDE 178 malfunction of thermistor for discharge air 160 malfunction of thermostat sensor remote controller 162 malfunction of transmission between central remote controller and indoor unit 202 iii malfunction of transmission between centralized remote controller and indoor unit 206 malfunction of transmission between indoor and outdoor units the same system 198 malfunction of transmission between indoor units and outdoor units 194 malfunction of transmission between inverter and control pc board 187 malfunction of transmission between main and sub remote controllers 197 malfunction of transmission between optional controllers for centrali
22. auth 188 3 41 uit Low Pressure Drop Due to Refrigerant Shortage Electronic Expansion Valve 189 3 42 uz Power Supply Insufficient or Instantaneous Failure 191 3 43 Check Operation not 193 3 44 Malfunction of Transmission between Indoor Units and 194 3 45 us Malfunction of Transmission between Remote Controller and UN DRE mmm 196 3 46 us Malfunction of Transmission between Main and Sub Remote 197 3 47 Malfunction of Transmission between Indoor and Outdoor Units in THE Same 198 3 48 UA Excessive Number of Indoor Units 200 3 49 Address Duplication of Central Remote 201 3 50 Le Malfunction of Transmission between Central Remote Controller and Indoor 202 oystem IS MOL 204 3 52 un Malfunction of System Refrigerant System Address Undefined 205 Troubleshooting by Indication on the Centralized Remote 206 4 1 uz Malfunction of Transmission
23. Test Operation 1 1 3 Air Tight Test and Vacuum Drying Airtight test Make sure to use nitrogen gas Pressurize the liquid and gas pipes to 4 0 MPa 40 bar do not pressurize more than 4 0 MPa 40 bar If the pressure does not drop within 24 hours the system passes the test If the pressure drops check where the nitrogen leaks from Vacuum drying Use a vacuum pump which can evacuate to 100 7 kPa 5 Torr 755 mm Hg 1 Evacuate the system from the liquid and gas pipes by using a vacuum pump for more than 2 hours and bring the system to 100 7 kPa After keeping the system under that condition for more than 1 hour check if the vacuum gauge rises or not If it rises the system may either contain moisture inside or have leaks 2 Following should be executed if there is a possibility of moisture remaining inside the pipe if piping work is carried out during the raining season or over a long period of time rainwater may enter the pipe during work After evacuating the system for 2 hours pressurize the system to 0 05 MPa vacuum break with nitrogen gas and evacuate the system again using the vacuum pump for 1 hour to 100 7 kPa vacuum drying If the system cannot be evacuated to 100 7 kPa within 2 hours repeat the operation of vacuum break and vacuum drying Then after leaving the system in vacuum for 1 hour confirm that the vacuum gauge does not rise 1 1 4 Additional Refrigerant Charge A R
24. eue ET 49 AG Miles 49 2 2 Compressor PI 50 2 3 Electronic Expansion Valve 51 24 Cooling Operation Fan 52 2185 e 53 Pee 29 3 2 Oil Return 54 SENE 56 3 4 Pump down Residual Operation 57 Table of Contents 4 5 6 Urban Multi ML5 Mini UM Heat Pump VEL 0 16 c 58 SE ee rU m 59 eC 60 4 1 High Pressure Protection 60 4 2 Low Pressure Protection 61 4 3 Discharge Pipe Protection 62 4 4 Inverter Protection Control MERETUR 63 Sides erm 64 ERE eee ne 64 52 Heaung pe ranun etal 64 Outline of Control Indoor 65 DI DELPHIS a O 65 6 2 Louver Control for Preventing Ceiling 67 6 3 Thermostat Sensor in Remote
25. 54 252 e 56 3 4 Pump down Residual Operation 57 3 9 Restar Sandy 58 26 SlOPDING 59 PECON M E 60 4 1 High Pressure Protection 60 4 2 Low Pressure Protection 61 4 3 Discharge Pipe Protection 62 4 4 Inverter Protection uii ea e eere rs 63 GON UMEN 64 Demand Operati 64 5 2 Heating Operation Pronibition a 64 Outline Ndoo UII 65 COMMON 65 6 2 Louver Control for Preventing Ceiling 67 6 3 Thermostat Sensor in Remote 68 64 Freeze Preventi 70 6 5 View of Operations of Swing Flaps 71 6 6 Electronic Expansion Valve Control 72 6 7 Hot Start Control In Heating Operation 72 47 Operation Mode Urban Multi ML5 Mini UM Heat Pump 1 Operation Mode Indoor unit thermost
26. Fan Type Sirocco fan High high mmn 16 5458 1 15 25 832 39 HrHowFae coig Hg mmn tes 2s SE CERE Be 39 29 Pa Pah Motor high 222 Direct drive Liquid OD Type Flare connection 3 39 Flare connection Operation manual Installation manual Drain hose Sealing pads Clamps Washer Screws Insulation for fitting Standard Accessories Clamp metal Air discharge flange Air suction flange Nominal coolin are based following conditions return air temperature 27 CDB 19 CWB outdoor temperature 35 CDB standard external static pressure 100Pa equivalent refrigerant piping 7 5m horizontal B are based on following conditions return air temperature 20 CDB outdoor temperature CDB 6 C standard external static pressure 100Pa equivalent refrigerant piping 7 5m horizontal Notes ee ee ca are net including a Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat for cooling an addition for heating for indoor fan motor heat External static pressure is changeable 13 or 14 stages within the range by the remote control static pressure is External static pressure is changeable 1
27. Faulty valve body A temperature in excess of 10 C Rise in high between tne inlet andthe outlet is deemed to be abnormal u pressure Faulty Faulty high pressure sensor lt the electrical characteristics normal control Faulty control PCB lt 5 the pressure value checked with the Service Checker Faulty high corresponding to the measurement of the pressure sensor E Faulty indoor Faulty valve coil lt Are the coil resistance and insulation unit electronic normal expansion valve Faulty valve body Faulty high pressure sensor Are the electrical characteristics normal in heating Faulty Faulty ind it lt the connector properly connected If the indoor unit electronic au INGOOF UNI MT iauid pi the thermistor resistance characteristics normal expansion valve excessively control liquid pipe thermistor throttled ls the pressure value checked with the Service See 2 Faulty control PCB Checker corresponding to the measurement of the pressure sensor In cooling ern crank lt 15 the suction air temperature not more than High suction air temperature High suction of outdoor unit air temperature of the condenser High suction air temperature of indoor unit Faulty suction air thermistor of indoor unit In heating High suction air temperature of outdoor unit Faulty outdoor temperature thermistor of outdoor unit Degradation Dirty condenser in condensing cap
28. Normal operation Indoor forced operation High Normal factory setting Low High Normal factory setting Low Quick defrost Defrost changeover setting Normal factory setting Slow defrost Field Setting Setting condition display Factory set 0 0e00000 1 090000 08080006080 0000 0900000 0 09000 0 0900000 0 09000 0 0900000 0 09000 090000000 090000 0 09090000 0 090000000 090000 0 0900000 0 09000 000 090000 0 090000 0 External low noise demand NO External low noise demand setting External low noise demand YES Address Binary number 6 digits Airnet address Setting of hot water heater Additional refrigerant charging operation setting Refrigerant charging OFF Refrigerant charging ON Refrigerant recovery Refrigerant recovery vacuuming OFF vacuuming mode setting Refrigerant recovery vacuuming ON OFF Night time low noise Level 1 outdoor fan with 6 step or lower setting Level 2 outdoor fan with 5 step or lower e 05 Q Level 3 outdoor fan with 4 step or lower 0900000 0 090000 0 0900000 0900000 0 Q OA OX XO 09000 0900000 0 09000 0900000 0 090000 0 0808000680 0900000 0 090000 0 099090000 The numbers the column represent the number of times to press the SET BS2 button Te
29. da Ed Elg zc r wig io Wes Old c Zj r o lt Of o 1 ES 2 Oo Zz Ze lz zz oz rz ies 5 16 5 5 ll OI OI gt gt NEN S RC Nie ZTA SS _ ors ee 0 2 23 2 Q PLA amp es 2 ZAIN 2 NS SN A Q of 2 AD 2 T V 1 SAUCER CN ar 8 ce lt 2 N ZW A W a fJ A SSS Y2S SOLENOID VALVE CONNECTOR COLOR BLACK LU 8 5 I lt lt O gt 5 O Lu cz 5 2 re E Aj ih 5 zi 5 s gt m w 2515 5 zt 5 Die gt uio c o olo 5 LCO cc o Tye gt lt Es gt az Ez Me E Q J 5 cce 45 Refrigerant Circuit Urban Multi ML5 Mini UM Heat Pump Functional Parts Layout Back view LLI a 5 N lt 2 LLI I T gt lt Lu D 5 5 gt e e I oc oc Cla Ola ole 5 FE Els 5 E Ayu Ox Ox Ec py zio 2 lt
30. 11041802 SLOWSY 1VHIN32 JHL BNISQ N3HM 7 Gu ATNO 58401200 02 334405 SSN 1 Fm Py Be ies 4 of ot 61 a PE dil SALON e 7 LA I INIT SI 34 033 MOTTSA MTA LHM 3ONVHO 980 NMOME NYG 3018 nig AOEZ JILSNDV 01433914339 5015 178 E g mnz 2 0 ZHOS NI 3475 341231044 8 1 410973 4015 GI 11055255 era JAM YOLISNNOJ 5 1474 lVNOLLdO 40173130 20 NO lvH3d0 2957 5 0 __ mao E TWHINAN N 1 eee gt NOISNVdX3 2INOHL23 13 ALA NJJSD SOLINOW 22429 2 1920412373 HO 401 0 401258502 4815 TVNINHSL 30010 LHDN 014 0 ONIMIM INNO VG A0SZ 350 M3MOd 41915 WNIWYSL jsnd 0798 MOLdvQv 501242450 AV T3H JIL3NOVH ACC NOTZ QCC VOL ASN TWNOWdO HOJ HOIJ3NNO2 JILSND VN SAY UAWYOSSNVYL NYJ HOLDVdVJ 41815 TVNiWH3I ONIHIM 03 Av 198 0408 931 Appendix 236 Panasonic 5 20 25 32 40 50
31. BH Heat indoor units airthermistorenor _ _ 776 o Outside airthermistor ewer _ mamono Dampesstmaam OOO O OoOO o Damper system o 38 EX Malfunction of simple remote controller Internal transmission error mM The system operates for malfunction codes indicated in black squares however be sure to check and repair Troubleshooting 137 Troubleshooting by Remote Controller Urban Multi ML5 Mini UM Heat Pump Malfunction code indication by outdoor unit PC board Monitor mode Contents of malfunction Malfunction code Detection of UM Net E1 Detection of INV compressor lock Over load over current Detection of DC fan 1 motor lock Malfunction of electronic expansion EV1 temperature Abnormal discharge pipe temperature Abnormal Td Abnormal heat exchanger temperature Refrigerant over charge Faulty sensor of discharge pipe Faulty Tdi sensor short temperature Faulty sensor of suction pipe Faulty Ts1 sensor short temperate Faulty Ts2 sensor short Faulty sensor of heat exchanger Faulty Tb sensor short temperature Malfunction of the liquid pipe Faulty TI sensor short temperature sensor To enter the monitor mode push the MODE BS1 button when in Setting mode 1 ITI ITI m lt Selection of setting item gt Push the SET BS2 button and set the LED display to a setting item
32. LINN JHL IWNNYW NOLLYTIYLSNI JHL OL 43494 ELE NL UST1081N02 310038 Ag 13123135 38 NYJ 10114340 1001802 330 0 YO 330 32404 1015110 S3HIM LGN SHL 9N1193NN02 N3HM TWANWW OTLORHISNI HLIM 39NYQHOOOY NI LINN 3HI 01 LI LOINNOD 83110818502 31034 1 1832 ONTSN 3599 07313 2 1 9 H0123NN02 X eo 52018 9310 43110491402 ILONA ONIHIM NOI 99015110 H3M0d X90718 TWNIWHSL WIX 2 0 C H3AH03SNYHI 1102 H0LS WH3H L HIV HOLSINWH3HI 43003843 HILIMS 1 H00QNI HOLON CY c man C5 59307043447 1910012113 H09 2809 GNS NIVN HOLINS 8010999 55 30010 ON oe o A022 ANTZ 022 HIV HOISIWH3HI 119 CY bra 2 5 3 0 AVA 801547813 211012311 3lA duvOg 1102812 Q31NTUd 108INO2DI2018 IINA 000 1 Appendix 242 Appendix 243 Wiring Diagrams Urban Multi ML5 Mini UM Heat Pump 244 Appendix Appendix 245 Option List Urban Multi ML5 Mini UM Heat Pump 3 Option List 3 1 Option List of Controllers Operation Control System Optional Accessories Wired remote control CZ 02RT11P B Infrared remote CZ 02RWU12P CZ 01RWY12P CZ 01RWL12P CZ 02RWD12P CZ 02RWF12P CZ 02RWF12P CZ 02RWT12P CZ 04RWK1
33. Push the RETURN BS3 button and 10 Defrost changeover Changes the temperature condition for defrost and sets to decide the item The present setting setting quick defrost or slow defrost condition is blinked External low noise setting Demand Reception of external low noise or demand signal setting AIRNET address Set address for AIRNET Make this setting to conduct heating operation with hot Additional 20 refrigerant charge Carries out additional refrigerant charge operation operation setting Selection of setting conditions Refrigerant Push the SET BS2 button and set recovery to the setting condition you want vacuuming mode Push the RETURN BS3 button and setting decide the condition Sets to refrigerant recovery or vacuuming mode Sets automatic nighttime low noise operation in a simple Night time low way noise setting The operating time is based on Starting set and Ending set Setting of external Sets low noise level when the low noise signal is input low noise level from outside A Sets starting time of nighttime low noise operation start setting Night time low noise setting is also required end Sets ending time of nighttime low noise operation setting Night time low noise setting is also required Power transistor check mode Used for trouble diagnosis of DC compressor Since the
34. 1 Only in UMA case L or LL LL LL LL OFF OFF 1 OFF Or L Set up p OFF OFF Function 74 Outline of Control Indoor Unit Urban Multi ML5 Mini UM Heat Pump 6 6 Electronic Expansion Valve Control Electronic expansion Valve Control In cooling to maximize the capacity of indoor unit heat exchanger evaporator operate the electronic expansion valve under PI control so that the evaporator outlet superheated degree SH will become constant In heating to maximize the capacity of indoor unit heat exchanger condenser operate the electronic expansion valve under PI control so that the evaporator outlet superheated degree Condenser outlet subcooled degree will become constant Cooling SHZTH 2 TH4 SH Evaporator outlet superheated degree Heating SC TC TH 4 TH4 Temperature C detected with the liquid thermistor THs Temperature C detected with the gas thermistor SC Condenser outlet subcooled degree TC High pressure equivalent saturated temperature Furthermore the default value of the optimal evaporator outlet superheated degree condenser outlet subcooled degree is 5 deg However this default value varies with the operating performance 6 7 Hot Start Control In Heating Operation Only At startup with thermostat ON or after the completion of defrosting in heating operation the indoor unit fan is controlled to prevent cold air from blasting out and ensure startup capacity Detail of operat
35. 9 5 10 m 6 4x10 89 5 10 m 73 x 0 054 69 x 0 022 5 46 5 5kg Appendix 249 Example of Connection Urban Multi ML5 Mini UM Heat Pump 250 Appendix Panasonic 7 Thermistor Resistance Temperature Characteristics 5 Thermistor Resistance Temperature Characteristics Indoor unit For air suction For liquid pipe R2T For gas pipe Outdoor unit for fin thermistor R1T CPE eek aaa iu For suction pipe 1 H3T For heat exchanger RAT R6T For suction pipe 2 R5T For Subcooling heat exchanger outlet R6T R4T For Liquid pipe R7T R8T Appendix 251 Thermistor Resistance Temperature Characteristics Urban Multi ML5 Mini UM Heat Pump Outdoor Unit Thermistors for Discharge Pipe R2T 252 Appendix Pressure Sensor Panasonic 6 Pressure Sensor Detected Pressure High Side MPa PL Detected Pressure Low Side MPa VH Output Voltage High Side Vi Output Voltage Low Side Pu PH 1 38V 0 69 PL 0 57V 0 28 High pressure MPa VL Low pressure MPa V Voltage V Detected Pressure r ps oe 4 2 m S 52 PERDRE EET N N
36. Assume equivalent pipe length of refnet joint to be 0 5 m and of the refnet header to be 1 0 m for calculation purposes Maximum Between outdoor and allowable i indoor units length Total extension length Total piping length from outdoor unit to all indoor units between 10 m and 300 m Difference in height Difference in height Between outdoor and IBI ORIS Difference in height between outdoor and indoor units H1 50 m 40 m if outdoor unit is located in a lower position Allowable height Between indoor and indoor iuis Difference in height between adjacent indoor units H2 15 m Pipe length from first refrigerant branch kit either refnet joint or refnet header to indoor unit 40 m Allowable length after the branch Actual pipe length Example unit 8 b c d e f g p 40 m Example unit 6 b h 40 m unit 8 i k 40 Example unit 8 1 40 m Refrigerant branch kit selection Use the following refnet joint Use the following refnet header Outdoor unit capacity type Refrigerant branch kit name Outdoor unit capacity type Refrigerant branch kit name Refrigerant branch kits can only be used with R 410A CZ P20BK32Q Pipe size selection A Piping between outdoor unit and refrigerant branch kit B Piping between refrigerant branch kits C Piping between refrigerant branch kit and indoor unit Caution on selecting connection pipes Match to the size of the connection piping on the outdoor unit Use the p
37. Check after waveform of inverter is output without wiring to the disconnection of Compressor it is convenient to probe whether the trouble compressor wires comes from the compressor or PC board 26 7 Push the RETURN BS3 button and 2 set to the initial status of Setting mode 2 If you become unsure of how to proceed push the MODE BS1 button and return to setting mode 1 If the capacity control is required the low noise control is automatically released by this setting during carrying out low noise operation and nighttime low noise operation Changes target value of power consumption when Demand setting 1 demand control 1 is input Normally enables demand control 1 without external 32 4 demand input Effective to prevent a problem that circuit breaker 9 of small capacity is shut down due to large load The numbers in the No column represent the number of times to press the SET BS2 button Capacity precedence setting 108 Test Operation Panasonic Setting item display TEST C H selection Low H2P IND Master Slave noise H3P H4P H5P H6P MODE Setting item Address Binary number 6 digits Cool Heat Unified address Address Binary number 6 digits Low noise demand address Test operation OFF Test operation Test operation ON Normal operation Indoor forced fan H Indoor forced operation Te setting Indoor forced fan H
38. 9 2 frequency setting 0 4 5 6MLS 31 3608 2 390m _ 3 4 40 _ 5208 soo _____ 2 i2 860Hz ______ 22 _ 2o 23 i4 24 15 _ 25 16 Moog 26 1700 i7 27 50g i8 20H 28 i9 ibo 29 M50 20 30 90g EM 6 520 570z 8 G20Hz 710 9 780 10 740g Compressors may operate in a pattern other than those listed in above tables subject to the operating conditions Selection of full load operation to from unload operation is made with the unload circuit solenoid valve 5 5 The full load operation is performed with the SVUL set to OFF while the unload operation is performed with the SVUL set to ON 50 Function Panasonic Basic Contr 2 3 Electronic Expansion Valve PI Control Main Electronic Expansion Valve EV1 Control Carries out the electronic expansion valve Y1E PI control to maintain the evaporator outlet superheated degree SH at constant during heating operation to make maximum use of the outdoor unit heat exchanger evaporator SH Ts1 Te SH Evaporator outlet superheated degree Ts1 Suction pipe temperature detected by thermistor R3T C c Low pressure equivalent saturation temperature The optim
39. AND X35A ARE CONNECTED WHEN THE OPTIONAL ACCESSORIES ARE BEING USED 4 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF CONTROL OPERATION CAN BE SELECTED BY THE REMOTE CONTROLLER SEE INSTALLATION MANUAL FOR MORE DETAILS 5 CONFIRM THE METHOD OF SETTING THE SELECTOR SWITCH 551 552 BY INSTALLATION MANUAL AND ENGINEERING DATA ETC 6 COLOUR LEGEND RED RED BLK BLACK WHT WHITE YLW YELLOW GRN GREEN ORG ORANGE BRN BROWN GRY GREY BLU BLUE PNK PINK 3 28836 1 Appendix 233 Wiring Diagrams Urban Multi ML5 Mini UM Heat Pump 5 20 25 32 40 50 20 25 32 40 50 CLASS RIT R2T R3T 22 28 36 45 56 CLASS INPUT FROM OUTSIDE SEE NOTE 4 POWER SUPPLY 220 240 50Hz X2M RED TRANSMISSION WIRING CENTRAL QDI zu WHT REMOTE CONTROLLER SEE NOTE 2 Pe GRN YLW nA p dd Se ER e t QM o MIF X23A SEE NOTE 3 Y1E C LO a Mi C1 CAPACITOR TRIAC FILTER SIGN RED LIGHT EMITTING DIODE LIGHT EMITTING DIODE ELECTRONIC EXPANSION _ 551 SELECTOR SWITCH MAIN SUB SERVICE MONITOR GREEN WIRED REMOTE CONTROLLER 557 SELECTOR SWITCH MAGNETIC RELAY THERMISTOR AIR WIRELESS ADDRESS SET MOTOR INDOOR FAN SELECTOR SWITCH
40. NM3 Appendix Gas side Liguid side Electronic expansion valve ax gt Filter Filter Fan Indoor heat exchanger 4D043864H B Refrigerant pipe connection port diameters mm Piping Diagrams 225 Piping Diagrams Urban Multi ML5 Mini UM Heat Pump 226 Appendix Wiring Diagrams Panasonic 2 W 2 1 iagrams D Outdoor Uni 0 4 5 6ML5XPQ iring Ov96S0dE 434113 3SION eZ 414415 140 HOLIAS 2 150 NY 659 158 350 OL MOH 431113 JSION 913 01240 3219 14043 30 YOVE NO 138 NOTLNVO NOIIVH3dO 01 39334 4 HOLdVdV 190 40 HOl 3NN02 14 4 OL NOISSINGNVHL HODCLNO HOOGLNO 12402 NOLIVTTVISNI JHL OL 85438 WOLdYdY 801140 JHL SNISA OS 5441 1134 1009 HOLIMG 8012919 565 11505 101409 TVHINJ IHL PNIS NIHA 8 553195108 43825 HlUY3 3ALL 3IOUd b CTI OST STAY 1002 83 615 J NYHO DHO MOTIJA MTA HOLOINNOD 03 13 1 TOO HOLIINNOD 318VA0N 91415 TE IRE JEA 40193135 H9 JLIHM LHM 38 038 N3382 NH NADHE NUH 54010271 1313 7 WIV NOISNVGNG 2 MUUIOSIH 314 H3lild 3510 407 415 3 A30 011011044 1109819 LHOHS L NOC ONTLYHSd0 9 LINN 8000110
41. Supposed Causes Troubleshooting V a LM3 Utilizes ON OFF of the limit switch when the motor turns When ON OFF of the microswitch for positioning cannot be reversed even though the swing flap motor is energized for a specified amount of time about 30 seconds Defect of swing motor Defect of connection cable power supply and limit switch Defect of air flow direction adjusting flap cam Defect of indoor unit PC board 147 Troubleshooting by Indication the Remote Controller Troubleshooting 148 Urban Multi ML5 Mini Heat Pump Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred 5 power supply NO 220 240V provided YES Indoor unit is a model equipped with a swing flap function YES Provide 220 240V power supply NO Replace indoor unit PC board The swing motor works when the power supply is turned off and then back The connector is connected to X9A or X15A of the indoor unit PC YES NO gt Connect the connector to X9A and turn on again NO YES The limit switch functions normally Replace swing motor YES The connecting cable is short circuited or disconnected YES gt Replace the limit switch After connecting cable turning the swing flap ON and then stopping with the remote controll
42. the stop for an extended period of time These are operating sounds of the electronic expansion valve of the indoor unit These sounds are produced from gas refrigerant flowing respectively through the indoor and outdoor units These sounds are produced when the gas refrigerant stops or changes flowing These sounds are produced from the drain discharge device in operation These sounds are produced from resin parts expanding and contracting with temperature changes On UM systems these sounds are produced when other indoor units in operation The reason is that the system runs in order to prevent oil or refrigerant from dwelling Normal operation This sound becomes low after a lapse of approximately one minute Normal operation Normal operation Normal operation Normal operation Normal operation Thereasonis that the compressor Normal operation changes the operating frequency Dust which has deposited on the Normal operation inside of indoor unit is blown out from the system 13 Odors come out In operation Odors of room cigarettes or else The inside of the indoor unit from the system adsorbed to the inside of indoor should be cleaned unit are blown out 14 Outdoor unit fan In operation The reason is that fan revolutions Normal operation does not rotate are controlled to put the operation to the optimum state 15 LCD display 88 appears on the
43. 166 ED 168 rc 169 zo p 170 Electrical and Functional Parts Outdoor UNIT 30 Electronic Expansion Valve PI Control 51 Error of External Protection Device 142 Excessive Number of Indoor Units 200 F AT 172 dome CT 173 Failure of Combination Between Indoor unit PC Board and Fan PC Board 158 Failure of Transmission Between Indoor unit PC Board and Fan PC Board 154 Fan Motor M1F Lock Overload 146 Field SENNO RE a 87 Field Setting from Outdoor Unit 104 Field Setting from Remote Controller 87 Freeze Prevention 70 Functional Parts Layout 44 H BEEN RTL LEM 174 Heating Operation Prohibition 64 High Pressure Protection Control 60 High Voltage of Capacitor in Main Inverter Circuit 188 Improper Combination of Optional Controllers for Centralized Control 209 Inverter Compressor Abnormal 184 Inverter Compressor Motor Lock 1
44. EPS 8 LN NNNM Lh m 8 8 8 senses P mm Dimensions mm Bros 113 o 910 00 60 Tube type Hi XSS 8 Non symmetric waffle louvre Treatment Corrosion resistant Propeller gt 2 lr Fow Far ronal ai 220 Discharge direction Quant Model Brushless DC motor 850 815 nominal 820 785 840 805 840 805 Direc drive ee estas SSCS mi Compressor Motor Speed m 25 As on line esp Cooling _ Edu 6 Specifications 1 1 TECHNICAL SPECIFICATIONS 67 Nomi a Cooling Sond Sound level Nominal Sound Heating Pressure Nominal m Heo _ Expansion valve electronic type Daphne FVC68D smee O o Se ot Flare connection Liquid 2 Flare connection Flare connection Braze connection Ga me connections amy d AGE GR Defrost Method Defros Contra Capacity Conte Method Capacity Se Installation manual Operation manual Standard Accessories Installation manual Operation manual Connection pipes Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB equivalent refrigera
45. Lu UU EX e PF DCI2V 0 12 o 5806 88g 0 7 8 Ta KT PHC202 LJ 6201 6 3A 250V 105 2 57 ROL 42T 230114761 e Saget 102 rau 58 250v 5 2 FH R38SV2elePF 1211 NS bi 585 581 R522 R521 a afe 1 J364 al Er aS PHCSEI MeF WHIT 5H 25 8 38mm C38 C35 54 55 EEN 4 rr icem XN REG RS QNI 8781 i i mena AA xen xsog th BE 4 FES 5 18 1129 Oxia xient Test Operation 105 Field Setting Urban Multi ML5 Mini UM Heat Pump Setting by pushbutton switches The following settings are made by pushbutton switches on PC board e o Factory setting 2760 There are the following three setting modes Setting mode 1 H1P off Initial status when normal Also indicates during abnormal Setting mode 2 H1P on Used to modify the operating status and to set program addresses etc Usually used in servicing the system Monitor mode H1P blinks Used to check the program mad
46. Panasonic Service Manual U 4 6ML5XPQ DPQ Urban Multi Mini UM Heat Pump Panasonic Mini UM ML4 R 410A Heat Pump 50Hz 1 1 1 Safety nennen nennen nennen nnns nnns V to PREFACE Part 1 General Information 1 Model Names of Indoor Outdoor 2 2 External 3 3 4 Part 2 Specifications aa gt e NT UT 6 6 RES 6 122 eodem 10 Part 3 List of Electrical and Functional 29 1 List of Electrical and Functional Parts 30 16 ovdi 30 1 2 Indoor 0 8 88 32 Part 4 Refrigerant Circuit 39 EEEE E 40 oo 225 40 2 I WANS 44 m 44 22 45 48
47. Panasonic 2 External Appearance Indoor Units Roundflow Ceiling Mounted Cassette 2 1 S 20UM4JPQ S 25UM4JPQ S 32UM4JPQ S 40UM4JPQ S 50UM4JPQ S 63UM4JPQ S 80UM4JPQ S 100UM4JPQ S 125UM4JPQ 600x600 4 Way Blow Ceiling Mounted Cassette S 20YM3HPQ S 25YM3HPQ 5 32 5 40 S 50YM3HPQ 2 Way Blow Ceiling Mounted Cassette S 20LM3HPQ S 25LM3HPQ S 32LM3HPQ S 40LM3HPQ S 50LM3HPQ S 80LM3HPQ S 125LM3HPQ Ceiling Mounted Corner Cassette S 25DM3HPS S 32DM3HPS S 40DM3HPS Concealed Ceiling Unit Small S 20NM3HPQ 5 25 Concealed Ceiling Unit S 20FM3HPQ S 25FM3HPQ S 32FM3HPQ S 40FM3HPQ S 50FM3HPQ S 80FM3HPQ S 100FM3HPQ S 125FM3HPQ General Information Concealed Ceiling Unit Large 5 40 5 50 S 100EM3HPS S 125EM3HPS S 200EM3HPS S 250EM3HPS Ceiling Suspended Unit S 32TM3JPR S 63TM3JPR S 100TM3JPR Wall Mounted Unit S 20KM3HPR S 25KM3HPR S 32KM3HPR S 40KM3HPR S 50KM3HPR 5 6 Floor Standing Unit S 20PM3HPS S 25PM3HPS 5 32 5 S 40PM3HPS S 50PM3HPS S 63PM3HPS Concealed Floor Standing Unit S 20RM3HPS S 25RM3HPS S 32RM3HPS S A0RM3HPS 5 5 S 63RM3HPS External Appearance S 200 250EM3HPS Capacity Range Urban Multi ML5 Mini UM Heat Pump 3 Capacity Range Outdoor Units
48. X 7 8 Mose a M u Type 0 3 a a Motor ee ut high Refrigerant RATOA Cooling Pressure dBh 320 320 zo 50 50 Flare connection Diamee mm 64 64 64 64 64 95 Standard Accessories Installation and operation manual Insulation for fitting Drain hose Clamps Screws Washer Level adjustment screw Nominal cooling capacities are based indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB equivalent refrigerant piping 7 5m horizontal Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 7 5m horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Sound pressure levels are measured at 220V Heat Exchanger Fan Liquid OD 24 Specifications Specifications 25 Specifications Urban Multi ML5 Mini UM Heat Pump 26 Specifications Specifications 27 Specifications Urban Multi ML5 Mini UM Heat Pump 28 Specifications Panasonic Part 3 List of Electrical and Functional Parts 1 List of Electrical and Func
49. on upper right Indicates TEST OPERATION on lower left V3057 On completion of test operation LED on outdoor unit PC board displays the following H3P ON Normal completion 2 ON Abnormal completion the indoor unit remote controller for abnormal display and correct it Test Operation Panasonic Test Operation Malfunction code In case of an alarm code displayed on remote controller 5 Nonconformity during installation Remedial action eee Open the gas side shutoff valve and the liquid side shutoff valve Recalculate the required amount of refrigerant from the piping Refrigerant overcharge length and correct the refrigerant charge level by recovering any excessive refrigerant with a refrigerant recovery machine valve of an outdoor unit is left Open the gas side shutoff valve and the liquid side shutoff valve Check if the additional refrigerant charge has been finished correctly Recalculate the required amount of refrigerant from the piping length and add an adequate amount of refrigerant Recalculate the required amount of refrigerant from the piping Refrigerant overcharge length and correct the refrigerant charge level by recovering any excessive refrigerant with a refrigerant recovery machine E valve of an outdoor unit is left Open the gas side shutoff valve and the liquid side shutoff valve Insufficient refrigerant correctly Recalculate the re
50. with the slave unit 2 Check items The following items can be checked 1 Current operating conditions Normal Abnormal In check operation 2 Setting conditions of COOL HEAT selection Individual Batch master Batch slave 3 Low noise operating conditions In normal operation In low noise operation 4 Demand operating conditions In normal operation In demand operation Procedure for changing COOL HEAT selection setting Normally Setting mode 1 is set In case of other status push IMODE BS1 button time and set to Setting mode 1 Push the SET BS2 button to set elect Low the blinking of LED to any of SLAVE noise m H7P conditions shown on the right H6P For selection by individual outdoor unt factory se For selection in a batch of outdoor unit group master unit For selection in a batch of outdoor unit group slave uit Push the RETURN BS3 button to Pushing the RETURN 53 button will return the system to the initial condition of determine the setting Setting mode 1 Procedure for checking check items The system is normally set to Setting mode 1 Should the system be set to any mode other than that push the MODE BS1 button to set the system to Setting mode 1 COOL HEAT select COOL HEAT select select ow IND MASTER SLAVE noise Du EL Current operating conditions e Normal o Abnorma
51. C The charging time depends on the amount of charged refrigerant and on the outside temperature B Automatic refrigerant charging is NOT possible if the following restrictions are exceeded B Outside temperature 0 DB 43 C DB Indoor temperature 0 C 0 32 DB Indoor unit connection capacity 509e 13096 Automatic refrigerant charging procedure 1 Open the liquid and gas side stop valves completely Note that valve must be closed 2 Turnon the power of the outdoor unit and indoor units Note When an indoor unit is connected to the refrigerant system and the indoor unit turned off automatic charging will fail 3 Make sure that the led on the PCB on the outdoor unit are as shown in the table below This indicates that the system is operating normally 17 Test Operation 77 Test Operation Urban Multi ML5 Mini UM Heat Pump Led state Throughout the manual the state of the leds is indicated as follows OFF 12 blinking ON or OFF If H2P is lit up check the type of error based on the error code in the remote controller and correct the error in accordance with 1 1 5 Check Operation on page 82 4 Automatically charge the refrigerant according to the procedure described below Warning Do not touch anything else than the push buttons BS1 5 the PCB when making the settings These settings must be done with the power on 4 1 Press BS4 TEST o
52. Capacity Range No of Indoor Units to be Connected Total Capacity Index of Indoor _ Units to be 50 130 62 5 162 5 70 182 Connected Indoor Units Capacity Range Capacity Index es Ceiling Mounted Cassette Type 125 Double Flow Ceiling Mounted Cassette Type Round Flow 600x600 Ceiling Mounted Cassette Type Multi Flow Ceiling Mounted Concealed Cealing Mounted Small Ceiling Mounted Ceiling Mounted Duct Type Bes 9 15 Ceiling Suspended Concealed Floor Standing Type 4 General Information Panasonic Part 2 Specifications 1 6 ela T ET 6 T sOutdoor UNIS iuncti taedet 6 Te door caren UTEM 10 Specifications 5 Specifications Urban Multi ML5 Mini UM Heat Pump 1 Specifications 11 Outdoor Units Heat Pump 50Hz lt U 4 6ML5XPQ gt 1 1 TECHNICAL SPECIFICATIONS U 4ML5XPQ U 5ML5XPQ U 6ML5XPQ E apacity 2080 I m em ee Bo PED category Category n of indoor units to be connected menm connection 1625 Write Casing 7 Painted galvanised steel peon 1 524 Packing De mm Unit We 59 99 Depth mm 050 030 3 90 Unit Weam veon serus 1 wo e Carton wood
53. Corrosion resistant Propeller TT T o Fou omina 420 a __ Quantity Brushless DC motor Melo Speed ITE 850 815 nominal T ME 820 785 840 805 840 805 Direct drive Motor uy __ 27100800 Hermetically sealed scroll compressor ompressor Motor Speed 6 480 8 Method Crankcase 3 Cw __ oe 4 ae Mm pews m 8 8 Guns _ Sound Love Specifications Panasonic Specifications 1 1 TECHNICAL SPECIFICATIONS U AMLSDPQ U 5ML5DPQ U 6ML5DPQ RAA Expansion valve electronic type Refrigerant Daphne FVC68D 2 Charged Volume 15 ___ J 15 A 15 Flare connection Type Liquid Flare connection connections r ERN Drain Defrost Method Defrost Contra Capacity Method Capacity Contra Installation manual Operation manual Standard Accessories Installation manual Operation manual Connection pipes Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB equivalent refrigerant piping 5m level difference Om Piping Specifications 9 Specifications Urban Multi
54. Schedule timer Address duplication of central remote controller Improper combination of optional controllers for centralized control Connection of more than one master controller Malfunction of transmission between optional controllers for centralized control Defect of PC board of optional controllers for centralized control Troubleshooting Panasonic Troubleshooting Troubleshooting Troubleshooting by Indication on the Unified ON OFF Controller Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Has a once connected optional controller for centralized ontrol been disconnected or itsaddress changed YES Reset power supply simultaneously for all optional controllers for centralized control Is the power supply turned on for all optional controllers for centralized control Turn on power supply for all optional controllers for centralized control YES Is the reset switch of all optional controllers for centralized control set to normal Set reset switch to normal Fix the wiring correctly central remote controller or schedule timer displaying a malfunction a central remote YES ontroller or schedule time connected Refer to failure diagnosis for central remote controller or schedule timer Is the setting of the unified ON OFF controller
55. Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 31 Outdoor Unit Malfunction of Thermistor RAT Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting 1 U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected according to the temperature detected by subcooling heat exchanger gas pipe thermistor When the subcooling heat exchanger gas pipe thermistor is short circuited or open m Faulty subcooling heat exchanger gas pipe thermistor R4T Faulty outdoor unit PC board AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred for subcooling heat exchanger gas pipe ifermistor connected fo Connect connector and operate unit again resistance measured after removing the thermistor R4T from outdoor unit PC board normal 3 5 KQ to 360 kQ Replace thermistor R4T Replace outdoor unit PC board A1P V3075 Refer to Thermistor Resistance Temperature Characteristics table on P251 179 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 32 4 Outdoor Unit Malfunction of High Pressure Sensor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunctio
56. Used to detect refrigerant over charge in check operation and others 42 Refrigerant Circuit 5 O gt D 0011290002 9191 apis UO 1109 9214195 9015 HOLVINWNIIV 9411 piouajog X 191114 391 12111429 0 9 05 5 DK 991 419 1429 191114 1089 Wrst dUNSSddd 91155914 1104 92154195 1104 3214139 18 Nba 21159944 4 Q yeay Lk gt gt JALLA 1015124 9 13bueu2xa 1094 8 21U04129 3 9414 3 qnoq 62 101 24 9 2110112914 c Je j A a 546 ins can Jo a ant BG J JM X nes Se ceo n Vy an 0 5 b 30052712 43 Refrigerant Circuit Urban Multi ML5 Mini UM Heat Pump Functional Parts Layout 2 Functional Parts Layout 0 4 5 Birds eye view 2 1 RXYSQ PA7Y1B CONNECTOR COLOR WHITE THERMISTOR LIQUID PIPE 1 CONNECTOR COLOR WHITE CONNECTOR COLOR BLUE ELECTRONIC EXPANSION VALVE S1N
57. control When the specified amount of refrigerant is charged push the BS3 RETURN button Then operation stops The operation automatically stops within 30 minutes refrigerant charge cannot be finished within 30 minutes repeat step 5 operation stops immediately after restart there is a possibility that the system is overcharged The refrigerant cannot be charged more than this amount After the refrigerant charge hose is removed make sure to close valve A 81 Test Operation Urban Multi ML5 Mini UM Heat Pump 1 1 5 Check Operation 82 Check on operation During check operation mount front panel to avoid the misjudging Check operation is mandatory for normal unit operation When the check operation is not executed alarm code U3 will be displayed Set to setting mode 1 H1P led is off refer to Setting mode 1 on page 107 Press and hold the TEST O The test operation is started automatically OPERATION button BS4 on The following judgements are conducted within 15 minutes about 30 outdoor unit PC board for 5 minutes at the maximum seconds e Check for wrong wiring Check stop valve for not open Check of refrigerant charge Pipe length automatic judgement The following indications are conducted while in test operation LED lamp on outdoor unit PC board H2P flickers test operation e Remote controller Indicates UNDER CENTRALIZED CONTROL
58. ej mo 2 32425 252 12 emer e eie eL e gt Advance button Backward button seo Normal status ON OFF RESERVE CANCEL TIMER MODE Enters inspection mode from normal status when the INSPECTION TEST button is pressed returns to normal When MODE selector button is pressed or no button is pressed for 1 minute equipment returns to normal status 1 Press INSPECTION TEST button If no button is pressed for 1 minute equipment lt 4 4 status 3 Press MODE selector button If no button is pressed for 1 minute equipment returns to normal status 5 Press MODE selector button 52008 131 Troubleshooting by Remote Controller Urban Multi ML5 Mini Heat Pump 2 4 Operation of the Remote Controller s Inspection Test Operation Button Normal display No display Inspection test Push the button operation Unit 0 Malfunction code LO Inspection Inspection mode Inspection test i Push the button operation Indoor unit model code display Inspection test operation Push the button 1 Outdoor unit model code display Inspection test Push the button operation Test operation Test operation mode Inspection test operation Push the button 132 Unit
59. p3 Pa into 5 positions position P2 4 The factory set position is standard position VLO12 Function 67 Outline of Control Indoor Unit Urban Multi ML5 Mini UM Heat Pump 6 3 Thermostat Sensor in Remote Controller Cooling Preset temperature Ts 68 ee Range in which thermostat sensor uuu remote controller can be used Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in the indoor unit This is however limited to when the field setting for the thermostat sensor in remote controller is set to Use If there is a significant difference in the preset temperature and the suction temperature fine adjustment control is carried out using a body thermostat sensor or using the sensor in the remote controller near the position of the user when the suction temperature is near the preset temperature 14 16 18 20 22 24 26 28 30 32 34 Suction temperature TH1 Range in which E body thermostat sensor Differential can be used VG003 Ex When cooling Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 30 C A F This example also assumes there are several other air conditioners the UM system is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 23 C A gt C
60. second digit malfunction in detail malfunction in detail e soe cave e Slave2 System Troubleshooting 141 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 Troubleshooting by Indication on the Remote Controller 3 1 Ae Indoor Unit Error of External Protection Device Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 142 NY i All indoor unit models Actuation of external protection device Improper field set Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred External protection device is connected to terminals 1 and T2 of the indoor unit terminal block gt Actuation of external protection device gt Change the second code No to set to external protection 01 or 02 device input second code No 03 Indoor unit PC board replacement V2776 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 2 Indoor Unit PC Board Defect Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting
61. 0 940 MOTIJA MIA ILIHM LHM 5401703 SY MOHS 51084579 8055322 01140 m VEX OL WOHJ NOIIO3NNOO 39NVH2 NOLLVH3d0 453 HOIH 35 2 NI 6 LINA 1 Q3HOVLIV TVANVW NOILIVTIVISNI JHL 01 43334 611 130 NI H3110H1NO09 310W3H 13123135 38 NOILVY3Sd0 1041 092 4 0 0 HO 4 0 0359403 1151 0 S3HIM LAAN ONILOSNNOD N3HM 7 TVANVW NOTLONYLSNI G3SHOVLLY JHL 39NVQH0OOOV NI LINN JHL OL LI LOSNNOD 49770341409 310W3H TVHLNSD DNISN 3SVO 013155 08 2 1 W0123NNOO 0 o 0 39078 TVNIWHSL 1 53108 637101949 1219012313 03 HOLdvOY ONTHINJHOLIINNOD 1 7 0300383 JIN 33911041105 91034 13135 ONTYIM NOTSSTWSNVYL 310N NIE 803 V9 LX HOLIMS ONd3HI 3015100 L dN Slayd 01140 303 40123148102 dV1d ONIMS HOLOW SIN y 310N INSANIY HOLINS 12415 155 dW d NIvHO HOLON diN HIV HOLSINUSHL 119 HOOQNI UOION 41N H311001N0 310N3U Q3HIM dlW AVI3H 2113NDWW JAYA SIN AV13H 9113 NOISNVdX3 9140419313 31 AVISH 211 YEY 10501091 9018 WZ X N33HO HOLINON 3211856 9018 WLX 30010 9NLLLIWI 15 7409 17406 AZC AOHZ O2C HINHOISNVUL VG 0 351 TR m JL s 91 ONIMS HOLING LINGI 015 31 515 4 91419373
62. 1 3 29 Outdoor Unit Malfunction of Thermistor R6T 3 30 27 Outdoor Unit Malfunction of Thermistor R7T for TET 3 31 49 Outdoor Unit Malfunction of Thermistor R47 3 32 Outdoor Unit Malfunction of High Pressure Sensor 3 33 ut Outdoor Unit Malfunction of Low Pressure Sensor 3 34 Outdoor Unit Malfunction of PC Board 3 35 Outdoor Unit Malfunction of Inverter Radiating Fin Temperature TANS mm MT 3 36 45 Outdoor Unit Inverter Compressor Abnormal 3 37 4 p Outdoor Unit Inverter Current 3 38 4 9 Outdoor Unit Inverter Start up Error 3 39 42 Outdoor Unit Malfunction of Transmission between Inverter and Control PC 3 40 7 Outdoor Unit High Voltage of Capacitor in mam gic e 3 41 uit Low Pressure Drop Due to Refrigerant Shortage Electronic Expansion Valve Failure 3 42 uz Power Supply Insufficient or Instantaneous Failu
63. 1 2 5 8 are extended For class 1 R 407C For class 2 R 410A Dimension B Differences 3 Vacuum pump with check valve Vacuum pump adapter Reverse flow preventive vacuum adapter Specifications Discharge speed Maximum degree of vacuum 50 l min 50Hz Select a vacuum pump which is able to keep 60 l min 60 2 the vacuum degree of the system in excess of Suction port UNF7 16 20 1 4 Flare 100 7 kPa 5 torr 755 mmHg UNF 1 2 20 5 16 Flare with adapter B Differences Equipped with function to prevent reverse oil flow Previous vacuum pump can be used by installing adapter Precautions for New Refrigerant R 410A 263 Precautions for New Refrigerant R 410A Urban Multi ML5 Mini UM Heat Pump 4 Leak tester Specifications Hydrogen detecting type etc Applicable refrigerants R 410A R 407C R 404A R 507A R 134a etc B Differences Previous testers detected chlorine Since HFCs do not contain chlorine new tester detects hydrogen 5 Refrigerant oil Air compal Specifications Contains synthetic oil therefore it can be used for piping work of every refrigerant cycle Offers high rust resistance and stability over long period of time B Differences Can be used for R 410A and R 22 units 6 Gauge manifold for R 410A Specifications High pressure gauge 0 1 to 5 3 MPa 76 cmHg to 53 kg cm Low
64. 100 C calculated by Tc and Te and suction INV upper limit frequency Tp 110 C superheated degree 1 step down from current compressor frequency After 30 sec HTdi 115 C Tp gt 135 C g HTdi lt 110 C Tp lt 125 C HTdi gt 130 C In PEINE LT INV upper limit frequency 1 step up HTdi 120 C from current compressor frequency After 20 sec or HTdi gt 135 C HTdi gt 120 C for 10 min or more 36 Hz Unload Discharge pipe gt When occurring 3 times within 100 minutes temperature standby the malfunction code F3 is output 62 Function Panasonic Protection Control 44 Inverter Protection Control Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction or transient inverter overcurrent and fin temperature increase Inverter overcurrent protection control Not limited 8 elnverter lt 12 Inverter current gt 12A eINV upper limit frequency max Hz Limited INV upper limit frequency 1 step down from current compressor frequency 10 sec Inverter current gt 12A eMatching of frequency otatus quo Inverter current x 12A continues for 3 min Without conditions INV upper limit frequency 1 step up from current compressor frequency Inverter current 2 13 1A continues for 260 sec Inverter current When occurring 4 times withi
65. 12 22 _3 04 3 05 4 06 5 07 6 08 7 setting for UM system heat recovery series cool heat 5 Power failure automatic reset Airflow When Cooling Thermostat is OFF LL airflow Presetairflow 12 W EM Selection of air flow direction Set when ee ai D a blocking pad kit has been installed F 4 directions T 3 directions Wedrecon 14 Air flow direction adjustment Set at installation of decoration panel Equipped Not equipped Field set air flow position setting Draft prevention Standard 7 23 High air outlet velocity Set when installed in place with N H 5 ceiling higher than 2 7 irections OD 16 17 Setting of the Static Pressure High static C3 CO 01 30 02 50 03 60 04 70 05 80 06 90 07 100 08 110 09 120 10 130 11 140 12 150 13 160 14 180 15 200 7 1 Thermostat OFF excess humidity Not equipped Equipped 19 Direct duct connection when the indoor unit and heat 15 reclaim ventilation unit are 25 connected by duct directly Note 6 3 Drain pump humidifier interlock selection Not equipped Equipped Field set selection for individual ventilation setting by remote controller Not equipped Equipped d Notes 1 Settings are made simultaneously for the entire group however if you select the mode No inside parentheses you can also
66. 3 1 6 Detailed Explanation of Setting Modes 1 Filter Sign Setting If switching the filter sign ON time set as given in the table below Set Time Setting Standard Long Life Ultra Long Life Filter Contamination Light 200 hrs 2 500 hrs 10 000 hrs Contamination Heavy 100 hrs 1 250 hrs 5 000 hrs 2 Ultra Long Life Filter Sign Setting When a Ultra long life filter is installed the filter sign timer setting must be changed Setting Table Setting Switch No Setting Position No Setting Long Life Filter 10 20 1 Ultra Long Life Filter 1 2 3 Selection of Thermistor Select the thermistor to control room temperature First Code Second Code No Thermistor that controls room temperature 01 Indoor air thermistor for remote controller and suction air thermistor for indoor unit 10 20 2 Suction air thermistor for indoor unit 03 Thermistor for remote controller The factory setting for the Second Code No is 01 and room temperature is controlled by the indoor unit suction air thermistor and remote controller thermistor When the Second Code No is set to 02 room temperature is controlled by the suction air thermistor When the Second Code No is set to 03 room temperature is controlled by the remote controller thermistor 4 Filter Cleaning Displayed or Not Displayed Whether or not to display Filter Cleaning after operation of certain duration can be selected First Code No S
67. 5 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF OPERATION CAN BE SELECTED BY THE REMOTE CONTROLLER SEE INSTALLATION MANUAL FOR MORE DETAILS 2TW23686 1C 23 Wiring Diagrams 580 100 125FM3H KMS SWITCH BOX COLORS BLK Bue BRN ORY BLUE BROWN BLACK PQ 80 100 125 CLASS 5 LN 90 12 140 CLASS E enun taut cc QEAT ____________________ COMPRESSOR RUIT Hi fie T 3 OPERATION ORG REL YLW SEE FIELD WIRING LIVE WIRE CONNECTOR RAL CLAMP PROT ECTIV EARTH SC RE Urban Multi ML5 Mini Heat Pump DAPTOR FOR WIRING NOT EB gt FRO QUTS CENTRAL CONTROLE REMOTE INPUT DE Need NOTE 4 H E S P OPERATION VOSS Lco T WIRED P1 P2 REMO CONTROLLER SEPERATE POWER SUPPLY IN 5OHZ 230V
68. By connecting the external contact input to the low noise input of the outdoor unit external control adaptor optional you can lower operating noise by 2 3 dB Image of operation Operation sound Rated operatison sound Operation sound of mode 1 Operation sound of mode 2 Operation sound of mode 3 Test Operation When the low noise operation is carried out automatically at night The external control adaptor for outdoor unit is not required 1 2 While in Setting mode 2 select the setting condition i e Mode 1 Mode 2 or Mode 3 for set item No 22 Setting of nighttime low noise level If necessary while in Setting mode 2 select the setting condition i e 20 00 22 00 or 24 00 for set item No 26 Setting of start time of nighttime low noise operation Use the start time as a guide since it is estimated according to outdoor temperatures If necessary while in Setting mode 2 select the setting condition i e 06 00 07 00 or 08 00 for set item No 27 Setting of end time of nighttime low noise operation Use the end time as a guide since it is estimated according to outdoor temperatures If necessary while in Setting mode 2 set the setting condition for set item No 29 Setting of capacity precedence to ON If the condition is set to ON when the air conditioning load reaches a high level the system will be put into normal operation mode even during
69. D18H2AB1 V1 Motor Ec motor high Refrigerant Name 410 e Sound Level Cooling power 50 0 51 0 56 0 58 0 nominal Suing Sound Sound NE imeem 835 65 Piping Gag 9 f CzoiHPFHP 20 _ White 1079105 Decoration Panel Dimensons Wah mm 0 mm 5 wam 3 35 9 89 80 80 Metal clamp for drain hose Paper pattern for installation Drain hose Insulation for fitting Washer for hanger bracket Standard Accessories Screws for duct flanges Screws for fixing the paper pattern for installation Fuse Installation and operation manual Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB equivalent refrigerant piping 8m level difference Om Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 8m level difference The external static pressure is changeable change the connectors inside the electrical box this pressure means Notes High static pressure standard low static pressure The external static pressure is changeable change the connectors inside the electrical box this pressure means High static pressure standard Capaciti
70. FHL OL AINO 031144 S MYHDVIC DNIHIM SIHL 53108 80123135 93880589 49405 HIIM 1081402 5 821114 3510 qu 41815 TVNINH3I WIX 431113 3S N 977 31000 3d0 CHEA 491113 35104 ___ 952 1100084 H3MOd 4013135 L 3H 1000 diN JE VLISX CIS 919 E PSIM 381553098916 05445 3815530939015 MOUHV vox I I I 17 5 505035 350155394 15 JINON H3wOd HOISIWH3HI 16H 109 1 MOlSIMH3HL 18H o 1102 HOS WH3H L BELL rune Ip g 30 0111504 4011015 HOISINH3HL 66 100285 HOISTWHESHI 99 __ 14011215 tH 394VH9STT QIN HOISTWH3HL 16H 1 801515381 do d AlddNS ___ 055448400 HOLOW 1 211 897 N3389 HOLINOW 3214835 A dNY1 10114 011 8340 41 di MOLLONQHTHM 1531 dud dH JONVHO WOLINON 3214136 10119 dB dlH 10980 VE 9 1 ASVONNVHO HOLIMS 414 150 HILIMS NOLIQH HS d 6 15 0909 03164 fg N 1 140
71. High pipe resistance Abnormal piping length lt Does the piping length fall in the permissible range Bent or crashed pipe Conduct visual checks for pipe conditions Clogging of foreign particles Is there any temperature difference caused before and after the filter or branch pipe Stop valve closed lt to be sure the stop valve is open Inadequate refrigerant quantity lt Refer to P 189 Moisture choke lt Eliminate moisture by vacuum operation Dirty evaporator Decreased fan airflow rate lt ls the heat exchanger clogged Faulty fan motor lt Can the fan motor be rotated with hands Decreased Are the motor coil resistance and insulation normal fan output Faulty control PC board spare PC board is mounted is the Including capacity setting capacity setting properly made High air Passage Dirty filter ls the air filter clogged resistance Obstacle lt 15 there any obstacle in the air passage 1 For details of the compressor capacity control while in cooling refer to Compressor PI Control on P 50 2 The low pressure protection control includes low pressure protection control and hot gas bypass control For details refer to P 61 3 In cooling the indoor unit electronic expansion valve is used for superheated degree control For details refer to P 72 4 In heating the outdoor unit electronic expansion valve EV1 is used for superheated degree control of o
72. MAIN SUB CONNECTOR FOR OPTIONAL PARTS MOTOR DRAIN PUMP WIRELESS REMOTE CONTROLLER CONNECTOR MOTOR SWING FLAP RECEIVER DISPLAY UNIT ADAPTOR FOR WIRE FIELD EARTH LEAK DETECTOR PRINTED CIRCUIT BOARD CONNECTOR ON OFF MAX 300mA PRINTED CIRCUIT BOARD X18A WIRING ADAPTOR FOR BS1 THERMAL PROTECTOR PUSH BUTTON ON OFF ELECTRICAL APPENDICES M RIT THERMISTOR AR ON RED 21 LIGHT EMITTING DIODE 3T HZP TMER GREEN 51 D eu RED RED BLK BLACK ORG ORANGE WHT WHITE GRN GREEN YLW YELLOW BLU BLUE als LLI TERMINAL CONNECTOR WIRE CLAMP SITE FIELD WIRING NOTES 1 IN CASE OF USING A REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE TO THE ATTACHED INSTALLATION MANUAL 2 2 S CONNECTED WHEN THE WIRELESS REMOTE CONTROLLER KIT IS BEING USED 3 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF CONTROL OPERATION CAN BE SELECTED BY REMOTE CONTROLLER IN DETAILS REFER TO THE INSTALLATION MANUAL ATTACHED TO THE UNIT 4 CONTROLLER MODEL VARIES ACCORDING TO THE COMBINATION SYSTEM SEE TECHNICAL DATA AND CATALOGS ETC BEFORE CONNECTING 3TW26426 1B 234 Appendix Wiring Diagrams Panasonic 5 25 32 40 279466006 on 25 12 KINO SHOLONGNOD 834402 35071 THM NMOHG NUE 3H 03H yovIE ONE 3179 1718 39
73. ML5 Mini UM Heat Pump 1 2 Indoor Units Ceiling Mounted Cassette Type Double Flow Nominal Power input 0 077 0 092 0 092 0 130 0 130 Nominal Heating 0 044 0 059 0 059 0 097 0 097 Bos Colour Non painted 9 Material Galvanised steel Height 45 _ 405 4 145 wan ww ww mm Dimensions mm uni 78 1 38 L9 m at en de o o o 9 9 8 Required Ceiing vod 0 9 99 Fem 38 1 38 1 38 1 38 1 38 Dimensions ome oe vs 01452 Exchanger Stages Tube type 55 7 Symmetric louvre Treatment Hydrophilic Fan Qm y L2 L2 70 39 39 ow mimi 9 9 n Hey mimm 78 39 __ eo __ eo 129 Cooling Phase cut control Fan Motor Output Refrigerant Name R 410A Sound Level Cooling power nomina Goog 9 30 955 95 Pressure 280 Heating Sound s 35 Liquid OD Dmes m 9 9 amp 9 85 9 3 _ Piping Gas Flare connection connections ixi Heat Insulation Both liquid and gas pipes
74. Mini UM Heat Pump 3 38 5 Outdoor Unit Inverter Start up Error Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 186 p Sm U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from current flowing in the power transistor When overload in the compressor is detected during startup B Defect of compressor Pressure differential start Defect of outdoor unit PC board A2P AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The difference between high and low pressure when starting is above 0 2MPa Unsatisfactory pressure equalization Check refrigerant system Disconnect the connection between the compressor and inverter Make the power transistor check mode ON by service mode Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is stable Replace the inverter PC board assy A2P After turning on again 5 blinks Reset and restart Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor V2814 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 39 Li Outdoor Unit Mal
75. Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 182 00 Lo U 4 6ML5DPQ U 4 6ML5XPQ Detect malfunctions by current value during waveform output before compressor startup B Detect malfunctions by current sensor value during synchronized operation at the time of startup Incase of overcurrent OCP during waveform output When the current sensor malfunctions during synchronized operation Incase of IGBT malfunction Faulty outdoor PC board A1P e IPM failure e Current sensor failure e Failure of IGBT or drive circuit AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn OFF the power supply once and then turn it ON again Does it return normally YES It is believed that external factors noise etc other than failure caused the malfunction Replace the outdoor PC board A1P PC board equipped with a resin case Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 35 44 Outdoor Unit Malfunction of Inverter Radiating Fin Temperature Rise Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting i L U 4 6ML5DPQ U 4 6ML5XPQ Fin temperature is detected by the th
76. NO transmission wiring normal YES Troubleshooting Refer to information on 220 Check for the fan motor Troubleshooting by Indication on the Remote Controller Be sure to turn off power switch before connect or disconnect connector Push and hold the RESET button on the master outdoor unit PC Board for 5 seconds The unit will not operate for up to 12 minutes Replace the indoor unit PC board Fix the indoor outdoor unit transmission wiring Repair the broken wires and then restart operation Supply 220 240 V Replace the fuse NO Replace the fuse F4U and the inverter PC board 2 Replace the fan motor Replace the inverter PC board Replace the fuse F4U Replace outdoor unit PC board A1P Push and hold the RESET button on the outdoor unit PC board for 5 seconds Fix the indoor outdoor unit transmission wiring Replace the outdoor unit PC board A1P V3187 195 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 45 5 5 Malfunction of Transmission between Remote Controller and Indoor Unit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 196 gt 4 All indoor unit models In case of controlling with 2 remote controller check the system using microcomputer is si
77. No Second Code No Individual operation of humidifier 5 25 Interlocked operation mE humidifier and drain pump 98 Test Operation Panasonic Field Setting 22 Individual Setting of Ventilation This is set to perform individual operation of heat reclaim ventilation using the remote controller central unit when heat reclaim ventilation is built in Switch only when heat reclaim ventilation is built in First Code No Second Code No pou cce c 15 25 5 02 Individual operation of ventilation Test Operation 99 Field Setting Urban Multi ML5 Mini UM Heat Pump 3 1 7 Centralized Control Group No Setting CZ 02RT11P Type In order to conduct the central remote control using the central remote controller and the unified ON OFF controller Group No settings should be made by group using the operating remote controller Make Group No settings for central remote control using the operating remote controller 1 Turn ON the power of the indoor unit and unified ON OFF controller Unless the power is ON no setting can be made Check that the installation and electrical wiring are correct before turning the power supply ON When the power supply is turned ON all LCD appear once and the unit may not accept the operation for about one minute with the display of flashing an interval of ON ON and OFF 2 While in normal mode press and hold the switch for a period of four seconds more to set the
78. No External static pressure Standard 10Pa 13 23 5 02 High static pressure Test Operation 97 Field Setting Urban Multi ML5 Mini UM Heat Pump 18 External Static Pressure Settings for EM3 model MODE NO 0 9 a 09 The SECOND CODE is set to 07 an external static pressure of 100 Pa at factory set 51 The 50 63 80 100 125EM3 cannot be set to 30 2 The 40 3 cannot be set to 180 or 200 19 Humidification When Heating Thermostat is OFF Setting to Humidification Setting turns ON the humidifier if suction temperature is 20 C or above and turns OFF the humidifier if suction temperature is 18 C or below when the heating thermostat is OFF First Code No Second Code No m d ad 028 Setting of humidifier 20 Setting of Direct Duct Connection This is used when fresh air intake kit equipped with fan is connected The indoor fan carries out residual operation for one minute after the thermostat is stopped For the purpose of preventing dust on the air filter from falling off First Code No Second Code No Contents direct duct connection 5 25 With direct duct apes fan 21 Interlocked Operation between Humidifier and Drain Pump This is used to interlock the humidifier with the drain pump When water is drained out of the unit this setting is unnecessary First Code
79. TA101B for 20 kg cylinder 5g Equipped with pressure resistant sight glass to check liquid refrigerant charging A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories Differences Measurement is based on weight to prevent change of mixing ratio during charging 10 Charge mouthpiece Specifications For R 410A 1 4 5 16 2min 2 5min Material is changed from CR to H NBR Differences Change of thread specification on hose connection side For the R 410A use Change of sealer material for the HFCs use Precautions for New Refrigerant R 410A Panasonic A AO M 142 UR 143 144 a 146 ya E 147 a EM 149 2 150 Abnormal Discharge Pipe Temperature 172 Abnormal Power Supply Voltage 149 About Refrigerant 410 258 Actuation of High Pressure Switch 164 Actuation of Low Pressure Sensor 166 Address Duplication of Central Remote evita 201 Address Duplication Improper Setting 211 152 PS 153 Applicable range of Field setti
80. Type with Drain Pump 14 TECHNCALSPECFICATONS Nomina Capacity Nominal Non painted Casing Material Galvanised steel ig mm Heg mm 29 29 Uni oi ww RR Packed Uni ig M mm 49 Face Area 0 108 0 108 nF Penge Nr of Stages Empty Tubeplate Hol 4 4 Tube type Hi XSS 7 Symmetric waffle louvre Hydrophilic Sirocco fan Fan High m min Air Flow Rate Quaniy Fan Motor Output high Direct dive RATOA Sound Sound Level Cooling power dBA 50 0 50 0 nomna ee 3 Pressure in Pressure Flare connection Flare connection Air Filter Nominal cooling capacities are based on con temperature 27 CDB 19 CWB SUE temperature 35 CDB equivalent refrigerant piping 8m level difference Om Notes Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 8m level difference Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Specifications 17 Specificatio
81. When the Float Switch is Tripped and AF is Displayed on the 66 Remote Controller Enters malfunction treatment if the float switch is not reset within 5 minutes AF display running P Remote controller flashing Remote controller malfunction stop display ON Float switch H il OFF ON 2 E J 1 5min X AX X x VLO11 d Note If the float switch is tripped five times in succession a drain malfunction is determined to have occurred AF is then displayed as operation continues Function Panasonic Outline of Control Indoor Unit 6 2 Louver Control for Preventing Ceiling Dirt We have added a control feature that allows you to select the range of in which air direction can be adjusted in order to prevent the ceiling surrounding the air discharge outlet of ceiling mounted cassette type units from being soiled This feature is available on double flow multi flow and corner types Existing position 1 2 Draft prevention position Standard Setting Ceiling soiling prevention position position Not for Multi flow type 2 P4 D4 X Y 1 x P 4 P3 Draft 4 Same as existing position position Range of direction adjustment Standard E Separated into 5 positions Range of direction adjustment e Separated into 5 positi prevention Prohibited P1 po
82. and operation manual Nominal cooling capacities are based on indoor temperature 27 19 CWB outdoor temperature 35 CDB equivalent refrigerant piping 8m level difference Om Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB Standard Accessories equivalent refrigerant piping 8m level difference Om The external static pressure is changeable change the connectors inside the electrical box this pressure means High static pressure standard low static pressure The external static pressure is changeable change the connectors inside the electrical box this pressure means High static pressure standard Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat The sound pressure values are mentioned for a unit installed with rear suction Notes Specifications 19 Specifications Urban Multi ML5 Mini UM Heat Pump Ceiling Mounted Duct Type ORS OO 28 uu 1E w 50 fore SSH Power Input 0 193 2 0 21 n 0 229 2 0 297 0 375 0 460 2 0 049 Casing Material Galvanised steel Sidi 50 830 50 Dimensions Umi 46 4 3 16 39 3 4 O 3 3 3 NE Echanger Mosme 6
83. between Centralized Remote Controller and Indoor Unit 206 42 4 PO Board DCCC x 207 4 3 Malfunction of Transmission between Optional Controllers for Centralized Control 208 4 4 7 Improper Combination of Optional Controllers for Centralized 209 4 5 Mt Address Duplication Improper Setting 211 Troubleshooting by Indication on the Unified ON OFF Controller 212 5 1 Operation Lamp lt 212 5 2 Display Under Host Computer Integrate Control Blinks Repeats omagle renner alee dt 214 5 3 Display Under Host Computer Integrate Control Blinks Repeats Double BIInK ttd toe 217 Troubleshooting Panasonic Symptom based Troubleshooting 1 Symptom based Troubleshooting 1 The system does not start operation at all Blowout of fuse s Turn Off the power supply and then replace the fuse s 3 4 Cutout of breaker s e f the knob of any breaker is in its OFF position turn ON the power supply If the knob of any circuit breaker is in its tripped position do not turn ON the power supply Tripped OFF Circuit breaker Power failure After the power failure is reset restart the system Open
84. carried out Use of the external control adaptor for outdoor unit is not required 1 While in Setting mode 2 make setting of the set item No 32 Setting of constant demand to ON 2 While in Setting mode 2 select the set item No 30 Setting of Demand 1 level and then set the setting condition to targeted mode When the Normal demand setting is set to ON OFF has been set at factory the power consumption can be set with the Demand 1 level setting 70 of The power consumption set with Demand 1 level setting rated power consumption has been set at factory gt V3082 Test Operation Panasonic Field Setting Detailed Setting Procedure of Low Noise Operation and Demand Control Test Operation Setting mode 1 H1P off In setting mode 2 push the BS1 MODE button time Setting mode 1 is entered and H1P off During the setting mode 1 is displayed In low noise operation and In demand control are displayed Setting mode 2 H1P on In setting 1 push and hold the BS1 MODE button for more than 5 seconds Setting mode 2 is entered and H1P lights Push the BS2 SET button several times and match the LED display with the Setting No you want Push the BS3 RETURN button one time and the present setting conte
85. centralized control 209 inverter compressor abnormal 184 inverter current abnormal 185 inverter protection control 63 inverter start up error 186 L louver control for preventing ceiling dirt 67 low pressure drop due to refrigerant shortage or electronic expansion valve failure 189 low pressure protection control 61 M malfunction of capacity determination device 153 malfunction of discharge pipe thermistor HT 175 malfunction of drain level control system OTI fe uel oe uut 144 malfunction of high pressure sensor 180 malfunction of humidity sensor system 161 malfunction of inverter radiating fin temperature rise 183 malfunction of low pressure sensor 181 malfunction of moving part of electronic expansion valve 2E uii 150 malfunction of moving part of electronic expansion Valve adea gu peus 170 malfunction of outdoor unit fan motor 169 malfunction of swing flap motor MA 147 malfunction of system refrigerant system address 2
86. controlled 64 different groups UM NET CZ 109AP11P Wiring restrictions max lengh 1 000m total wiring lengh 2 000m max number of Expander Adaptor branches 16 apply to each adaptor 7 1 Mounting plate KRP4A92 e Fixing plate for CZ 109AP11P Note 1 Installation box for adaptor must be procured on site 7 246 Appendix Panasonic List Appendix 247 Urban Multi ML5 Mini UM Heat Pump Option List 3 2 Option List of Outdoor Unit U 4 6ML5DPQ U 4 6ML5XPQ U 4ML5DPQ U 4ML5XPQ Optional accessories U 5ML5XPQ U 5ML5DPQ U 6ML5XPQ U 6ML5DPQ Cool Heat Selector CZ 02RD12P Fixing box K JB111A CZ P29HK32Q Refnet header CZ P20BK32Q ET Refnet joint 4TW26101 gt 5g IQ E Central drain plug Appendix 248 Example of Connection 4 Example of Connection Example of connection Branch with refnet joint Branch with refnet joint and refnet header Branch with refnet header Connection of 8 indoor units Heat pump system indoor unit lt refnet joint refnet header Pipe length between outdoor and indoor units 150 m Actual pipe length Example unit 8 a b c d e f g p 150 Example unit 6 a b h 150 m unit 8 a i k 150 Example unit 8 a i 150 Equivalent length Equivalent pipe length between outdoor and indoor units 175
87. gt 0 39MPa Low pressure limited Hot gas SVP OFF Pe gt 0 30MPa Pe lt 0 15MPa 36Hz Unload Hot gas SVP ON Low pressure gt When occurring 3 times within 30 min standby the malfunction code E4 is output In heating operation Pe lt 0 07MPa Pe LP pressure sensor detection value lt 0 17 Low pressure not limited Low pressure not e Pe gt 0 09MPa or Ts Teg lt 8deg aL Pe gt 0 06MPa Low pressure limited INV upper limit frequency 3 step down from current compressor frequency Pe lt 0 17MPa After 10 sec Current step limited Hot gas SVP OFF gt 0 20 After 15 sec lt 0 12 gt 0 17 INV upper limit frequency 1 step up from current compressor frequency Hot gas SVP ON lt 0 07 Low pressure ____ gt When occurring 3 times within 30 min standby the malfunction code E4 is output Function 61 Protection Control Urban Multi ML5 Mini UM Heat Pump 4 3 Discharge Pipe Protection Control This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature INV compressor Discharge pipe protection control not limited HTdi Value of INV compressor discharge pipe temperature Tdi compensated with HTdi gt 115 C outdoor air temperature gt 135 Tp Value of compressor port temperature HTdi lt
88. iping 1 iagrams D Outdoor Uni 4 5 6ML5XPQ iping 1 1 2162904 8 10132910109 9191 WWG L buldid 9 UO 1100 9214195 YIM JALLA 009105 191118 0 401212435 45 1059 941552104 YOIH 1003 1104 921195 1900202 9 1086 9911 34911142 211 91158914 YIH 9411 1811190 1009 05 cr m JOSUS 24155214 0 6012011684 91155914 191114 191 e UOISULdX 9110119913 8411 Ale 1989 1104 921 185 dO 191114 JabueyoxXa 1094 9919 919100 UOlSUDdXO 211012213 Appendix 222 iagrams D iping P U 4 5 6ML5DPQ Panasonic cLZeS0Q0 0011290002 9191 WWE LY opls 601919 9 UO 1109 9214195 YIM JALEA 4015 223 HOLVIA
89. is 7 C or more for 10 min continuously Ex Case where temperature is 5 or less for total of 10 min 10 min 0 C Freeze prevention operation 10 min Forced OFF by thermostat 005 70 Function Panasonic tine of Control Indoor Unit 6 5 View of Operations of Swing Flaps owing flaps work as following Flap control Fan LM3 UM4 DM3 Hot sta defrosting Seting the wind direction Swingin OFF Level Level Level OFF Level Levei Level Setting the wind direction Swingin LL Level Level Level Thermostat is off Lowinging ______ Setting the wind direction Level Level Level Hot start from the Swinging Level Level Level Level state that the E thermostat is off Setting the wind direction Level Halt Swinging __ Level Setting the wind direction Level Thermostat of Swinging Swinging microcomputer dry m is on Setting the wind direction Set up Level Level Level winging Set up Thermostat of Swinging microcomputer dr is off Setting the wind direction 9 etu winging 5 5 Swinging Set up 5 5 Set up 5 Cooling thermostat Swinging winging is off Setting the wind direction Halt S Setting the wind direction Microcomputer is Swinging controlled including cooling state Setting the wind direction Set et up Set up Level Level Level Level Swinging Swinging Set up Set up
90. m total wiring length 2 000 m max number of branches 16 apply to each adaptor System Configuration Vodei No n Central remote controller 2 02 5 Up to 64 groups of indoor units 128 units can be connected and ON OFF temperature setting and monitoring can be accomplished individually or simultaneously Connectable up Electrical box with earth terminal to 2 controllers in one system ti 3 blocks KJESHA Unified ON OFF controller CZ 01ANA11P Upto 16 groups of indoor units 128 units can be turned ON OFF individually or Electrical box with earth terminal KJB212A simultaneously and operation and malfunction can be displayed Can be used in 2 blocks combination with up to 8 controllers Noise filter for electromagnetic interface use only KEK26 1 Programmed time weekly schedule can be controlled by unified control for up to 64 groups 3 Schedule timer of indoor units 128 units Can turn units ON OFF twice per day Interface adaptor R 407C R 22 CZ 102AP11P for US series Adaptors required to connect products other than those of the UM System to the high R 410A XCZ 112AP11P speed UM NET communication system adopted for the UM System y K DTA107A55 To use any of the above optional controllers an appropriate adaptor must be installed on P the product unit to be controlled Wiring adaptor for other air conditioner CZ 103AP11P Up to 1024 units can be centrally
91. nighttime If capacity precedence is set in Capacity precedence setting the fan speed will be increased according to the load of air Time set with Night time low noise start setting conditioning when load is heavier Time set with Night time low noise end setting Operation sound during night time low noise mode is instructed can be set with Night time low noise level setting Factory setting is OFF Operation sound level set with Night time low noise setting 8 00 10 00 PM 0 00 6 00 7 00 8 00 ee Set with Night time low noise start setting Set with Night time low noise end setting Factory setting is PM 10 00 Factory setting is AM 8 00 V3079 115 Field Setting Urban Multi ML5 Mini UM Heat Pump Setting of Demand Operation Image of operation Power consumption Rated power consumption 80 96 of rated power consumption 70 96 of rated power consumption 60 96 of rated power consumption 116 By connecting the external contact input to the demand input of the outdoor unit external control adaptor optional the power consumption of unit operation can be saved suppressing the compressor operating condition Demand The compressor operates at approx 6096 or less of rating The compressor operates at approx 7096 or less of rating The compressor operates at approx 8096 or less of rating When the normal demand operation is
92. on P 254 256 Refer to information on P 220 192 Troubleshooting Panasonic 3 43 iis Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting Troubleshooting by Indication on the Remote Controller Check Operation not Executed gt U 4 6ML5DPQ U 4 6ML5XPQ Check operation is executed or not Malfunction is decided when the unit starts operation without check operation B Check operation is not executed AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has the check operation performed on Outdoor unit PC board Press the BS4 on PC board on the master outdoor unit for 5 seconds or more to execute check operation Replace the main PC board on the outdoor unit V3052 193 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 44 Malfunction of Transmission between Indoor Units and Outdoor Units Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 194 2 nd All indoor unit models U 4 6ML5DPQ U 4 6ML5XPQ Microcomputer checks if transmission between indoor and outdoor units is normal When transmission is not ca
93. phase in power supply Check power supply After that cable properly connect the power supply cable and then turn ON the power supply 2 The system starts operation but makes Blocked air inlet or outlet of indoor Remove obstacle s immediate stop or outdoor unit Clogged air filter s Clean the air filter s The system does not cool or heat air well Blocked air inlet or outlet of indoor Remove obstacle s or outdoor unit Clogged air filter s Clean the air filter s Enclosed outdoor unit s Remove the enclosure Improper set temperature Set the temperature to a proper degree Airflow rate set to LOW Set it to a proper airflow rate Improper direction of air diffusion Set it to a proper direction Open window s or door s Shut it tightly In cooling Direct sunlight received Hang curtains or shades on windows In cooling Too many persons staying ina room In cooling Too many heat sources e g OA equipment located in a room The system does The system stops and If the OPERATION lamp on the Normal operation The system will not operate immediately restarts operation remote controller turns ON the automatically start operation after system will be normal These a lapse of five minutes Pressing the TEMP ADJUST symptoms indicate that SVETEM system is controlled so as not to y i put unreasonable loads on the system The remote controller displays The system is controlled with Operate th
94. remote controller Used when you want to turn on off by central remote controller only Cannot be turned on off by remote controller OFF control only possible by remote controller Used when you want to turn on by central remote controller only and off by remote controller only Centralized Used when you want to turn on by central remote controller only and turn on off freely by remote controller during set time Individual Used when you want to turn on off by both central remote controller and remote controller Timer operation possible by remote controller Used when you want to turn on off by remote controller during set time and you do not want to start operation by central remote controller when time of system start is programmed Test Operation How to Select Whether operation by remote controller will be possible or not for turning on off controlling Operation Mode temperature or setting operation mode is selected and decided by the operation mode given on the right edge of the table below Example Sd oo RR 7 STONE Temperature Operation mode Control Unified ON by Unified OFF by a 4 control by setting by mode is 1 remote controle remote controller remote controller controller controller V Rejection Rejection Rejection Acceptance Acceptance VLO69 Control by remote controller Unified operation m Unified OFF controller or ope
95. sensor Used to detect high pressure Sst NPL Used to detect low pressure In order to prevent the increase of high pressure when a malfunction occurs this t S1PH HP switch For INV switch is activated at high pressure of 4 0 MPa or more to stop the compressor compressor operation This valve opens at a pressure of 4 0 MPa for prevention of pressure increase thus b resulting in no damage of functional parts due to the increase of pressure in ge pipe transportation or storage me Thermistor Outdoor air Ta Used to detect outdoor temperature correct discharge pipe temperature and others Thermistor INV discharge used to detect discharge pipe temperature make the temperature protection control of pipe Tdi compressor and others 3 R3T Thermistor used to detect suction pipe temperature keep the suction superheated degree Suction pipe1 Ts1 constant in heating operation and others RAT Thermistor Heat exchanger Used to detect liquid pipe temperature of air heat exchanger determine defrosting deicer Tb operation and others Thermistor Suction pipe2 Used to the calculation of an internal temperature of compressor etc Thermistor Subcooling heat EXC exchanger gas pipe Tsh Used to control of subcooling electronic expansion valve Thermistor Liquid pipet TI Used to detect refrigerant over charge in check operation and others Thermistor Liquid pipe2 TI2
96. the electronic expansion valve Replace the connecting cable you turn the power supply off and turn on again and it still does not help replace the indoor unit PC board V2781 Troubleshooting Panasonic Troubleshooting Troubleshooting by Indication on the Remote Controller 1 Coil check method for the moving part of the electronic expansion valve Discount the electronic expansion valve from the PC board and check the continuity between the connector pins Normal White 2 Yellow 1 White x O x O Approx Approx 300Q 1500 2 Yellow x O Approx 300Q 3 Orange x O Approx 150Q 4 Blue x Approx 1500 Continuity x No continuity 151 Troubleshooting by Indication on the Remote Controller 38 AE Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 152 lt Urban Multi ML5 Mini UM Heat Pump Indoor Unit Drain Level above Limit n LM3 FM3 DM3 EM3 Water leakage is detected based on float switch ON OFF operation while the compressor is in non operation When the float switch changes from ON to OFF while the compressor is in non operation Humidifier unit optional accessory leaking Defect of drain pipe upward slope Defect of indoor unit PC board AN Be sure to turn off power switch before connect or disconnect connecto
97. the PC board of the one that is unable to control the indoor unit V2833 Troubleshooting 4 4 Improper Combination of Optional Controllers for Centralized Control NAG di e Remote Controller Display Applicable Centralized remote controller Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Improper combination of optional controllers for centralized control Causes More than one master controller is connected Defect of PC board of optional controller for centralized control Troubleshooting 209 Troubleshooting by Indication on the Centralized Remote Controller Urban Multi ML5 Mini UM Heat Pump Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Cannot be used in combination with a wiring YES adaptor for electrical appendices Remove the wiring adaptor for electrical appendices and reset the NO power supply for all optional controllers for centralized control simultaneously Is the wiring adaptor for electrical appendices connected Schedule timer and data station cannot be used in combination Disconnect YES either the schedule timer or data station and reset the power supply for all optional controllers for centralized control simultaneously Is a data station connected Is a schedule timer connected Schedule timer and paral
98. the air conditioners with no setting for the function same as factory setting the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned on again after once turned off However for the air conditioners with the setting the units may start automatically after power failure reset or the main power supply turned on again return to the same operation condition as that of before power failure For the above reasons when the unit is set enabling to utilize Auto restart function after power failure reset utmost care should be paid for the occurrence of the following situation Caution 1 The air conditioner starts operation suddenly after power failure reset or the main power supply turned on again Consequently the user might be surprised with question for the reason why 2 In the service work for example turning off the main power switch during the unit is in operation and turning on the switch again after the work is completed start the unit operation the fan rotates 12 Air Flow When Cooling Thermostat is OFF This is used to set air flow to LL air flow when cooling thermostat is OFF First Code No Second Code No LL ir flow 12 22 Preset airflow Test Operation 95 Field Setting Urban Multi ML5 Mini UM Heat Pump 13 Setting of Normal Air Flow Make the following setting according to the ceiling height Th
99. the heat exchanger thermistor becomes disconnected or shorted while the unit is running B Defect of thermistor R2T for liquid pipe Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Connector is connected to X12A of the indoor unit PC board Connect the thermistor and turn on again Resistance is normal when measured after disconnecting the thermistor R2T from the indoor unit PC board 3 5 N E Replace the thermistor R2T Replace the indoor unit PC board V2784 Refer to thermistor resistance temperature characteristics table on P251 Troubleshooting 3 12 57 Indoor Unit Malfunction of Thermistor R3T for Gas Pipes a gt NE Remote Controller Display Applicable All indoor unit models Models Method of Malfunction detection is carried out by temperature detected by gas pipe thermistor Malfunction Detection Malfunction When the gas pipe thermistor becomes disconnected or shorted while the unit is running Decision Conditions Supposed B Defect of indoor unit thermistor for gas pipe Causes Defect of indoor unit PC board Troubleshooting sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Connector is connected to X11A of the indoor unit PC bo
100. the indoor unit 1 Number of beeps 3 short beeps Conduct all of the following operations 1 short beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the malfunction code is confirmed Continuous beep No abnormality Press the MODE selector button The left 0 upper digit indication of the malfunction code flashes Malfunction code upper digit diagnosis Press the UP or DOWN button and change the malfunction code upper digit until the malfunction code matching buzzer 2 is generated The upper digit of the code changes as shown below when the UP and DOWN buttons are pressed 2 IPIGZSIBI e c Advance button Backward button lt 06 2 Number of beeps Continuous beep Both upper and lower digits matched Malfunction code confirmed 2 short beeps Upper digit matched 1 short beep Lower digit matched Press the MODE selector button The right O lower digit indication of the malfunction code flashes Malfunction code lower digit diagnosis Press the UP or DOWN button and change the malfunction code lower digit until the continuous malfunction code matching buzzer 2 is generated Troubleshooting Panasonic Troubleshooting Troubleshooting by Remote Controller B The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed
101. thermistor R4T from the outdoor unit PC board 3 5kQ 360kQ NO Replace the thermistor R6T Replace outdoor unit PC board A1P V3074 Refer to thermistor resistance temperature characteristics table on P251 177 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 30 7 Outdoor Unit Malfunction of Thermistor R7T for Outdoor Unit Liquid Pipe Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 178 U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from the temperature detected by the liquid pipe thermistor When a short circuit or an open circuit in the heat exchange thermistor is detected B Defect of thermistor R7T for outdoor unit liquid pipe Defect of outdoor unit PC board A1P Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connector is connected to X13A of outdoor unit PC board A1P Connect the thermistor and turn on again Hesistance is normal when measured after disconnecting the thermistor RAT from the outdoor unit PC board 3 5kQ 360kQ NO Replace the thermistor R6T Replace outdoor unit PC board A1P V3074 Refer to thermistor resistance temperature characteristics table on P251
102. time m Malfunction of transmission between optional controllers for centralized control and indoor unit Connector for setting master controller is disconnected Failure of PC board for centralized remote controller Defect of indoor unit PC board Troubleshooting Panasonic Troubleshooting Troubleshooting Troubleshooting by Indication on the Remote Controller Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has indoor unit once connected been remove Reset power supply or its address simultaneously for all optional controllers for centralized control the power supply turned on for indoor units displaying malfunction Turn indoor unit s power supply Is transmission wiring disconnected or rod ily Fix the wiring correctly wired incorrectly Is transmission with all indoor units malfunctioning 2 Is the group No of malfunctioning indoor units set correctly e Replace indoor unit PC board the transmission wiring with the master controller disconnected or wired incorrectly Fix the wiring correctly master controller s connector for setting master controller disconnected Connect the connector correctly Replace the central PC board V2829 203 Troubleshooting by Indication on the Remote Controller 3 51 ur Rem
103. 0 1 0625 1 U 5ML5XPQ U 6ML5XPQ 187 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 40 Outdoor Unit High Voltage of Capacitor in Main Inverter Circuit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 188 U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected according to the voltage waveform of main circuit capacitor built in the inverter When the aforementioned voltage waveform becomes identical with the waveform of the power supply open phase Defect of main circuit capacitor Improper main circuit wiring Defect of outdoor unit PC board A2P Imbalance of phase to phase voltages Open phase Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Make measurement of power supply voltages between L1 and L2 L1 and L3 and L2 and L3 power supply voltages of three phases fallen within the range of rated voltage 10 NO Correct the power supply voltages YES Has the imbalance of phase to phase voltages fallen within 10 NO Correct the power supply voltages YES Replace the inverter PC board assy A2P Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 41 Low Pressure Drop Due to Refrigerant Shor
104. 1 Malfunction of Inverter Radiating Fin Temperature 183 Malfunction of Low Pressure Sensor 181 Malfunction of Moving Part of Electronic Expansion Mz T 150 Malfunction of Moving Part of Electronic Expansion Valve 170 Malfunction of Outdoor Unit Fan Motor 169 Malfunction of PC Board 182 Malfunction of Swing Flap Motor M18 147 Malfunction of System Refrigerant System Address Undele 205 Malfunction of Thermistor RAT 179 ROT 177 Malfunction of Thermistor R1T for Suction Air 159 Heat Exchanger 156 Malfunction of Thermistor for Gas Pipes 157 Malfunction of Thermistor RST R5T for SUCHIN RIDE 176 Malfunction of Thermistor R7T for Outdoor Unit Liquid Pipe 178 Malfunction of Thermistor for Discharge Air 160 Malfunction of Thermostat Sensor in Remote 162 Malfunction of Transmission between Central Remote Controller and Indoor Unit 202 Malfunction of Transmission between Centralized Remote Controller and Indoor Unit 206 Malfunction of Transmission be
105. 170 Troubleshooting Panasonic Troubleshooting Troubleshooting by Indication on the Remote Controller Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred YE Return to normal Turn power supply off and turn power supply on again NO expansion valve is connected to X21A and X22A of outdoor unit PC board A1P YES NO Normal when coil check 1 of the moving part of the electronic expansion valve is checked NO YES The connecting cable is short circuited or disconnected YES NO Make measurement of resistance between the connector pins and then make sure the resistance falls in the range of 40 to 500 Orange 1 Red 2 Yellow 3 Black 4 5 C TI X Gray 6 Troubleshooting Measuring points External factor other than malfunction for example noise etc After connecting turn the power off and then back on again Replace the moving part of the electronic expansion valve Replace the connecting cable Replace outdoor unit PC board A1P V3067 V3067 171 Troubleshooting by Indication on the Remote Controller 3 24 FI Urban Multi ML5 Mini UM Heat Pump Outdoor Unit Abnormal Discharge Pipe Temperature ZT Remote 1 Controller Display Applicable U 4 6ML5DPQ U 4 6ML5XPQ Models Method of Abnormality is detected
106. 2 Not used Do not change the factory settings OFF Factory set Cool heat selector connection procedure Set the remote controller only when changing over the operation mode between cooling and heating using the remote controller installed in the outdoor 1 Connect the cool heat selector optional accessory to the terminals A and on the outdoor X2M Terminal board A and 2 Set the cool heat selector switch DS1 1 from OFF which is selected at the factory before shipment to ON A1P DS1 1 switch knob ABC Cool heat selector 104 Test Operation Caution Capacity Setting after changing the main PC Board A1P to spare parts PC Board When you change the main PC Board A1P to spare parts PC Board please carry out the following setting Please Attach the Capacity Setting Adaptor corresponding to Capacity Class ex 112 140 160 in connector X51A See Below Capacity Setting Adaptor ___ Capacity Class 4012 CAPACITY SETTING ADAPTOR for 100 J112 5 140 CAPACITY SETTING ADAPTOR for 125 J140 6 160 CAPACITY SETTING ADAPTOR for 140 J160 Position of Attaching the Capacity Setting Adaptor RXYSQA4 5 6PA7Y1B X50A 8 G5NB 1A x 0 12 M 3 _ SU a DI E yn om 22 1 PHCSO2 d i t 5 eat 1 1 OCi2v __ gens BE
107. 21A valve Main PI control Electronic expansion PI control Functional valve Subcool YSE control AIP X22A parts STF 0404G Solenoid valve Hot gas TEV1620DQ2 A1P X26A Solenoid valve Unload circuit TEV1620DQ2 A1P X27A j ACB 4UB10 SIPH OFF 4 0 0 0 15 ON 3 0 0 15 717 2 related parts Pressure sensor HP S1NPH PS8051A 0 4 15MPa A1P X17A Pressure sensor LP S1NPL PS8051A 0 05 1 7MPa X18A 3 5 360kQ AIP For discharge pipe 5 0 640kQ A1P X12A 1 2Pin For suction pipe 1 3 5 360kQ A1P 12 3 4Pin For heat exchanger 3 5 360kQ 1 X12A 5 6Pin Thermistor Main i i For suction pipe 2 3 5 360kQ A1P X12A 7 8Pin Fuse FIU 02 List of Electrical and Functional Parts 31 List of Electrical and Functional Parts Urban Multi ML5 Mini UM Heat Pump 1 2 Indoor Unit Model Parts Name Symbol s 20UM4 S 25UM4 S 32UM4 S 40UM4 S 50UM4 S 63UM4 S 80UM4 81900 5125 Remark JPQ JPQ JPQ JPQ JPQ JPQ JPQ JPQ JPQ Wired Remote Remote Controller aM M Option Controller wireless Remote CZ 02RWU12P Controller p pe Thermal Proctector OFF 108 ON 9675 220 240 50Hz AC220V 60 2 Motors Drain Pump PLD 12230DM Thermal Fuse 145 C MP35HCA 3P007482 1 swing Motor 00 swing Motor 00 Stepping Motor DC16V Thermistor Suction IL In PC board A4P or wired remote controller Thermistor
108. 2P CZ 02RWF12P control Simplified remote control CZ O2REMIP CZO2REMP 78 Wiring adapter erem _ 79 Wiring adapter hour meter Emem _ io ice KRP2A526 1 2 516 1 2 61 2 516 2 516 2 61 KRP2A62 KRP2A51 appendices 1 ia KRP4AA53 1 44538 6 KRP4A51 KRP4A516 KRP4A516 KRP4A51 KRP4A52 KRP4A51 GER KRCSOT i8 Installation box for adapter PCB 101 1093 3 KRPA Electrical box with earth terminal 3 blocks ee Electrical box with earth terminal 2 blocks KJB212AA KJB212A Noise filter for electromagnetic interface 17 Exermalcontroadaptor ______ oeme cz osAPizP CHap Cz 304APizP _ _ NEN Note 1 Installation box is required 2 Fixingbox is KRP1A90 Up to 2 adapters can be fixed per installation box 4 Only 1 installation box can be installed per indoor unit Various PC Boards Model No KRP1B56 KRP1B57 Adaptor for wiring KRP1B61 PC board when equipped with auxiliary electric heater in the indoor unit KRP1B3 KRP4A53 Up to 1 024 units can be centrally controlled in 64 different groups UM NET Expander Adaptor CZ 109AP11P Wiring restrictions max length 1 000
109. 3 SH control Hot gas bypass valve SVP OFF Ending conditions 20 sec e Pe lt 0 6MPa e HTdi gt 110 C 54 Function Panasonic Special Control 3 2 2 Return Operation in Heating Operation Conditions to start The heating oil returning operation is started referring following conditions integrated amount of displaced oil B Timer After the power is turned on integrated operating time is 2 hours and subsequently every 8 hours In addition integrated amount of displaced oil is derived from Tc Te and the compressor load Outdoor Unit Actuator Oil bela Oil return operation Post oil return operation 2 step increase from 36 Hz Unload to 140 Hz Full load gt 0 4 MPa every 20 sec WEE unit fan STEP8 errs E STEP8 Four way valve way valve EVI expansion valve SH control 480 pls 55 pls electronic expansion 0 pls 0 pls 0 pls valve EV3 P i Hot gas bypass valve SVP Compressor Upper limit control e 12 min Ending conditions or Te Eee Ts1 Te 5 C No Po 0 4MPa Tb gt 11 C From the preparing oil returning operation to the oil returning operation and from the oil returning operation to the operation after oil returning the compressor stops for 1 minute to reduce noise on changing of the four way valve Indoor unit actuator Heating oil return operation Thermostat ON unit Stopping unit Thermostat ON unit Electronic expansion valve Stopping unit Th
110. 3 button and switches to the initial status of Monitor mode Push the MODE BS1 button and returns to Setting mode 1 V2765 Test Operation Field Setting Pe _ mem ____ __ 0 ______ IE fumes 446260 5 Number of connected indoor units of connected indoor units Number of connected zone units na outdoor and HR unit 8 Number of outdoor units of outdoor units Number of zone units excluding outdoor and HR unit Lower 4 digits Lower 4 digits Contents of malfunction the Malfunction latest code table Contents of malfunction Refer to page 16 Contents of malfunction 2 cycle before Contents of retry he ates Contents t 0 22 contents otrety esee O O10 e Lower 2 digits Abnormal Normal e Unjudgment The numbers in the No column represent the number of times to press the SET BS2 button Normal judgment of outdoor units PC board Setting item 0 Display contents of Various setting EMG operation backup operation setting Defrost select setting e o fe 111 Field Setting 112
111. 3 Bis Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 208 gt 2 Centralized remote controller Urban Multi ML5 Mini UM Heat Pump Malfunction of Transmission between Optional Controllers for Centralized Control m Malfunction of transmission between optional controllers for centralized control Defect of PC board of optional controllers for centralized control AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has a once connected optiona controller for centralized ontrol been disconnected or its address changed NO Is the power supply turned on for all optional controllers for centralized NO the reset switch of all optional controllers for centralized control set to normal NO transmission wiring disconnected or wired incorrectly NO YES YES Reset power supply simultaneously for all optional controllers for centralized control Turn on power supply for all optional controllers for centralized control Set reset switch to normal Fix the wiring correctly The PC board of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers for centralized control and replace
112. 3 or 14 stages within the range by the remote control in 13 or 14 stages within the range by the remote control Air filter is not standard accessory but please mount it in the duct system of the suction side Select its colorimetric method gravity method 50 more 20 Specifications Ceiling Suspended Type a Capacity T Nominal Dimensions unt mm 90 amp 4 Depth m 6 amp 0 wm Jut o 2 8 y Fast pe os gt Sirocco fan mE i98 EM __ high Died dive RATOA qum 2 low jd 80 1 Flare connection Frere conneion SSS 1 Piping Flare connection Installation and operation manual Drain hose Paper pattern for installation Clamp metal Insulation for fitting Clamps Washer Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB equivalent refrigerant piping 7 5m horizontal Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 7 5m horizontal Capacities are net including a deduction for cooling an addition for heating for
113. 3NNOO H3T1OH1NOO SLOWSY 5 HOLIMS HO12313S TIVLSNI H3TIOHLNOO SLOWSY H3T1OH1NOO SLOWSY 40 ZSS 155 HOLIMS HOLO3NNOO 1HOHS SMOHS 69 30N3u0 1S0u430 HO12313S ONILLAS JO JHL IWNHIHNOO 7 3fr18 MOVTS MOTT3A MIA MNId SNLLEIN3 ONILOANNOO 3H0438 913 SOOT 175 ANY LHM SV SMOHS 5 Hae ONIH33NION3 IWHIHNOO WALSAS VANVIA NOLLVTIVLSNI ONLLLIW3 LHOT1 NOLLVNIBINOO OL ONIGHOSOV NI LINN IHL OL SJIHYA TSCOW 9 LO3NNOO H3T1OHLINOO ALOWSY ISYONI Z LINN JHL QG3HOV LLV TYNNYN NOLLYTIVLSNI HOLO3NNOO OL STIVLEG NI HATIOHLNOO HOLO3NNOO OO TWNINYAL 440 NO HSNd 3193135 38 9 NOIL VH3dO S31ON JOHLNOO HO NO 440 AGISLNO in LINN HOOQNI quvos LINDEID SAYIM LAdNI JHL ONLLO3NNOO N3HM 6 Soa TONINO quvos 1NOUJ 3ais u3T1OHLNOO 310 3H SS313UIM OL QI3HOV LLV AV1dSIQ H3AI303H NLX HATIOY
114. 400 0 5uF 400V 1 0uF 400V 1 5 400 2 0uF 400V ST8601 6 64 L1250 Thermistor Suction Air 20kQ 25 C Thermistor for Heat ST8605 9 08 L2500 Thermistors Exchanger High Temp 20kQ 25 C Thermistor for Heat ST8602A 9 6 L2500 End 20kQ 25 C 25 Remote Remote CZ 02RT11P Option Controller Wireless Remote Controller CZ 02RWF12P 220 240 50Hz Fan Motor M1F 1615W 1625W 1635W Motors NEN Parts Name Symbol 20 S 25PM3 S 32PM3 S 40PM3 S 50PM3 S 63PM3_ Remark HPS HPS HPS HPS HPS HPS Thermal protector 185 C OFF 120 C ON Capacitor for Fan 4 1 0uF 400V 0 5uF 400V 1 0uF 400V 1 5uF 400V 2 0uF 400V E m m Therstrs Thermistor EE RT ea Thermistor for Heat LS ST8602A 9 96 L2500 EE EA 20kQ 25 C List of Electrical and Functional Parts 3 List of Electrical and Functional Parts 38 Urban Multi ML5 Mini UM Heat Pump List of Electrical and Functional Parts Panasonic Part 4 Refrigerant Circuit UE 40 utes T 40 C du mrt 40 2 44 2 1 0 4 5 44 22 Ua D ONL5SDPO Tt 45 Refrigerant Circuit 39 Refrigerant Circuit Urban Multi ML5 Mini UM Heat Pump 1 Refrigerant Circuit 11 Outdoor Unit 0 4 5 6ML5XPQ No in refrigerant system Symbol Name Major Function diagram Inverter compressor is operated on frequ
115. 5 ASL P O8E NE Alddfls Y4MOd 22 Appendix UM Heat Pump ini Urban Multi ML5 M Wiring Diagrams 4 5 6ML5DPQ 911845045 3ATVA JR T STK D LAUT Zd 13 NDISSTRSNYHL 000010000 7007 905 3 1 OL NOLLO3NNOD NOTIYTIYLSNI HL DL 13230 3 AWWA 31 6 310N 4 9 MOTIJA NTA JLIHA LHM 03 03 N33UD NUO NMONG NHG 3018 01 501001 YN INH Ta 0131135 1 9 5 WINGI 1415 321430 N011231084 803 110980 LOHS ADQ NAHI ypssauanog 10 40111504 JHL 1041409 41415 ____ 114405 43404 91415 WIXI JINGOW 30010 HEA HZA JINGOW d3MOd WIA HOLIMS 34155349 1415 HOSN3S 3HfSS3Hd JANIS 805845 38055444 2 5 ____ 10907 194 Laer 14H 1009815 H IS WH3HI 193 440119105 HOISINHSHI SH 1 109 1011205 39 2510 21 HOISINHSHI 1H HIY 10151514 401515394 19915 H3M0d 5654 H3w01 NVJ 0100 44 0100 JINI 4055 44405 4019534 AVISH 2 13N5VN HGY Avi3H LINER 2 50 ANY 88 198 35 OL NOU 31 14 14043 30 1298 13871 NOLIQV2 1 9390 OL 833474 NOT
116. 68 Inverter Current Abnormal 185 Inverter Protection Control 63 Inverter Start up Error 186 J TERR 175 d 176 177 i 178 179 JA iat 180 do 181 L mer EDEN EUR 182 L 183 P xe e eR 184 E RN IU MET 185 UO sons 186 E E E PE EE T E E AEAEE T 187 List of Electrical and Functional Parts ON DIa AE 32 Louver Control for Preventing Ceiling Dirt 67 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure 189 Low Pressure Protection Control 61 207 mm TENE 208 209 Malfunction code indication by outdoor unit 0 012 138 Malfunction of Capacity Determination Device 153 Malfunction of Discharge Pipe Thermistor E 175 Malfunction of Drain Level Control System Ken 144 Malfunction of High Pressure Sensor 180 Malfunction of Humidity Sensor System 16
117. ANS Lans IVA DIIS 902931351155 Xt uIV HOISINH3HI HOT TOEO 3J0 NO NOTING HSNd 158 LINDY 310199 9 08 1102919 310199 d V HITIOWINOD 5531301 OL AVIdS 0 034 3230 JHOLIMS 11241151 159 uv L1 491109109 310W3H 3UIM Nivea 9417 51 4 1 014002 TOHINO 35740 2 N001231 314 103109 72018 TYNINH3I u340d 32018 WIXI C 0 C0 H3NHOJSNYHI HII dV IS ONIMS JHOLIMS 915 5 1100 18015 11838 00011 1102 13002044 JHOLING dVid 9NIMS SINI SIN AY13H 2 I3NDVW YYA 30010 ONILLIW3 IHO T dVH dae 800 2970 1 LIMUN diV LINN 9000 Appendix 240 Wiring Diagrams 990675048 241 5 20 25 32 40 50 63KM3HPR Panasonic SI LDIHSTIOHINOO SLOWAH HOLO3NNOO VSEX gnS NIVW HOLIMS 30103788 195 ssauaay sss T3ulM 55 14 JHL NAHM Q3103NNOO SI 8 HOLIMS 19073 HOLO3NNOO VSIX ulv HOLSIWHSHL E HOLIMS HOLO313S 913 IVANVW IWNOILdO HOLO
118. Causes gt ap al All indoor unit models Malfunction of transmission within or outside of other system Malfunction of electronic expansion valve in indoor unit of other system Defect of PC board of indoor unit in other system Improper connection of transmission wiring between indoor and outdoor unit Troubleshooting Panasonic Troubleshooting Troubleshooting Troubleshooting by Indication on the Remote Controller Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred oe has been displayed for 2 minutes or more Turn on all indoor units The display blinks the remote controllers of other units within the same refrigerant system Re diagnose by display after passage of 2 minutes or more we Da IT Refer to failure diagnosis for uw malfunction code The Ai display blinks on the remote controllers of other units within the same refrigerant system YE S dn Refer to failure diagnosis for malfunction code The 45 display blinks on the remote controllers of other units within the same refrigerant system u Refer to failure diagnosis for 5 malfunction code The u display blinks on the remote controllers of other units within the same refrigerant YES Refer to failure diagnosis for u s malfunction code Refer to failure di
119. D P AOZ 07 00 HOLIMS 1vO14 115 9908 dzY 1102 1 188108 1102812 C3INIBd _ 417 Alddf S uIV uOISINH3HI llaf LINN 8000 235 Appendix Urban Multi ML5 Mini Heat Pump Wiring Diagrams 5 20 25NM3HPQ 999 2M12 4371103107 SLOWSY 094 3ION 541108 TVHIN32 i r Zd M1 3015110 WOH Ll LHM H3A0 LANI 310N poa 71130 WANVW NOLLV TTV ISNI 226 4311041 02 JLOWSY JHL A8 02193125 38 NYI 1 aly NOLLYM3dO 440 NO X0 330 935303 3015110 S3MIM IHL SNILISNNOD N3HM 77 ATLNSGNSdSON 0514405 38 01 SvH 14405 SHL LINDY YSLVSH SHI ML 404 ONIMIM SHL YSLYSH 91912373 SHL ONITIVLSNI NAHM ponerme VOLX OL NOLLJZNNOJ A03 IYONYW 338 M H m T 1
120. Decision Conditions Supposed Causes Troubleshooting Troubleshooting gt a ens U 4 6ML5DPQ U 4 6ML5XPQ Check data When data could be correctly received from the E7PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Defect of outdoor unit PC board A1P sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power once and turn on again External factor other than malfunction for example noise etc Return to normal Replace the outdoor unit main PC Board A1P V3064 163 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 19 3 Outdoor Unit Actuation of High Pressure Switch 2 2 2 Controller Display Applicable U 4 6ML5DPQ U 4 6ML5XPQ Models Method of Abnormality is detected when the contact of the high pressure protection switch opens Malfunction Detection Malfunction Error is generated when the HPS activation count reaches the number specific to the operation Decision mode Conditions Reference Operating pressure of high pressure switch Operating pressure 4 0MPa Reset pressure 3 0MPa Supposed Actuation of outdoor unit high pressure switch Causes Defect of High pressure switch B Defect of outdoor unit PC board A1P B instantaneous power
121. G FLAP RINTED CIRCUIT BOARD THERMISTOR COIL EARTH LEAK DETECTOR MAGNETIC RELAY MTS Q2E RyA LIGHT EMITTING DIODE CIMER GREEN LIGHT EMITTING DIODE FILTER SIGN RED HERMAL FUSE 45270 MIF EMBEDDED RyF1 3 RyP MAGNETIC RELAY MAGNETIC RELAY LIGHT EMITTING DIODE DEFROST ORANGE SWITCH MAIN SUB USE 250V 5A ELD FUSE RANSFORMER 220 240V 22V ERMINAL STRIP POWER ECTOR SWITCH WIRELESS ADDRESS SET CONNECTOR FOR PARTS LIGHT EMITTING DIODE SERVICE MONITOR GREEN MOTOR INDOOR FAN MOTOR SWING FLAP MOTOR DRAIN PUMP THERMISTOR NOTES 1 WHEN USING A CENTRAL REMOTE CONTROLLER MANUAL FOR CONNECTION TO THE UNIT 2 X23A IS CONNECTED WHEN THE WIRELESS REMOTE CONTROLLER KIT IS USED ERMINAL STRIP CONTROL ELECTRONIC EXPANSION VALVE RECFIVER DISPLAY UNIT ATTACHED TO WIRELESS REMOTE CONTROLLER A3P PRINTED BOARD 85 ON OFF BUTTON 3 5 1 F F H M M H 5 IT 10 AP 5 P 1T 18 CONNECTOR WIRING ADAPTOR FOR ELECTRICAL APPENDICES X23A CONNECTOR WIRELESS REMOTE CONTROLLER O 3 WHEN CONNECTING THE INPUT WIRES FROM THE OUTDOOR UNIT FORCED OFF OR ON OFF OPERATION CAN BE SELECTED BY THE REMOTE CONTROLLER FOR MORE DETAILS SEE INSTALLATION MANUAL 4 USE COP
122. HED CONNECTOR WIRELESS REMOTE CONTROLLER TO WIRELESS REMOTE CONTROLLER IMP MOTOR DRAN PRINTED CIRCUIT BOARD NOTES 1 WHEN USING CENTRAL REMOTE CONTROLLER SEE MANUAL FOR CONNECTION TO THE UNT 2 X23A 5 CONNECTED WHEN THE WIRELESS REMOTE CONTROLLER KIT IS USED 3 WHEN CONNECTING THE INPUT WIRES FROM TRE OUTDOOR UNIT FORCED OFF OR ON OFF OPERATION CAN BE SELECTED BY THE REMOTE CONTROLLER FOR MORE DETAILS SEE INSTALLATION MANUAL 4 USE COPPER CONDUCTORS ONLY 2TW23806 1D 232 Appendix S 20 25 32 40 50 63 80 100 125UM4JPQ 20 125 ASS 22 140 CLASS HON X24 A2P HOSVV U3G2 5 indoor ps 5 es AAP m Rc 1 1 S CONTROL BOX 220 240 220V INPUT FROM 50 60Hz wore 4 CONTROLLER NOTE 2 WIRED REMOTE CONTROLLER INDOOR UNIT PRINTED CIRCUIT BOARD CONNECTOR FOR OPTIONAL PARTS REMOTE CONTROLLER HAP SERVICE MONITOR GREEN WIRED REMOTE CONTROLLER TERMINAL STRIP DEFROST ORANGE MIF MOTOR INDOOR FAN ZT FERRITE CORE 551 SELECTOR SWITCH MAIN SUB MOTOR DRAIN PUMP TP NOTES 1 LEE TL TERMINAL o o CONNECTOR FIELD WIRING 2 IN CASE OF USING A CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 3 X24A
123. HPQ HPQ Cee 1 Remote CZ 02RT11P Remote Cee Option Controller ae Remote ae AC 220 240V 50Hz 10125 Fan Motor 1 50 1 65 1685W B od 16225W Motors Thermal Fuse 152 C Thermalruse 152 C ggg gh 240V 50Hz Drain Pump PLD 12230DM Thermal Fuse 145 C ST8601 4 4 L800 20kQ 25 C emn for Heat R3T ST8605 7 08 L1600 Exchanger oh Temp 20kQ 25 CZ 02RWF12P Thermistor Suction Ar Suction Air Thermistors Thermistor Heat ST8602A 6 6 11250 Exchanger 20kQ 25 C Float Switch FS 0211B Parts Name symbol 5 40 2 S 50EM3 S 63EM3 S 80EM3 S 100EM3 S 125EM3 Remark HPS HPS HPS HPS HPS HPS Wired Remote Controller Wireless Remote ree DC280V 140W 8 DC373V 350W 8P Motors 220 240 50 60 2 Drain Pump PLD 12230DM Thermal protector 145 C ST8601 3 L630 20kQ 25 C for Heat R3T ST8605 14 8 L1000 Exchanger Hoh Temp 20kQ 25 Thermistor for Heat ST8602A 6 08 L1250 Exchanger 20kQ 25 C Float Switch L FS 0211B Fuse A1P 250V 3 15A Others F3U Fuse A2P FAU 250V 6 3A Thermistor Suction Air Suction Air Thermistors List of Electrical and Functional Parts 35 List of Electrical and Functional Parts Urban Multi ML5 Mini UM Heat Pump Model Parts Name Symbol S 32TM3 S 63TM3 100 2 Remark JPR JPR JPR Wired Remote i Controller Wireless Controller CZ 01RWT12P AC 220 240V 220
124. Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 1 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 1 5 Using Icons List Icon Type of Description Information Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Note Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get Caution an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury N Warning Reference reference guides the reader to other places in this binder or in this manual where he she will find additional information on a specific topic viii Panasonic Introduction 1 2 PREFACE Thank you for your continued patronage of Panasonic products This is the new service manual for Panasonic s Year 2008 UM ML5 series Heat Pump System Panasonic offers a wide range of models to respond to buildi
125. LNOO dVH ord ks ALOWSY PNIS div 3A3VA NOISNVdX3 DINOYLOSTS H3MOd 49018 WNINYAL 49018 1VNIINH3LL 3dld SVD 1109 HOLSIINH3H L 3dld 1109 HOLSIINH3H L HOLSIINH3H L dV14 DNIMS HOLOW HOOGNI HOLOW 4 555555 noo VSIX WX LON ed d3TIOH LNOO ALOWSY 1IVH LN39 5 5 cd JCISLNO 1ndNi H3TIOHINOO 31O0IN3H SS3TSYIM LINN AVTdSIQ H3AI3O3H 8 910 VOEX VSEX dVH 88 8 LON gt 2809 2809 0 0 9939 HOLINOW 30835 ODNILLINS LHOIT ve 8 asnd quvoa LINDYIO LINN HOOQNI LIH 129 184 NH9 LSS dtv Appendix Urban Multi ML5 Mini UM Heat Pump 5 20 25 32 40 50 6 5 5 20 25 32 40 50 63RM3HPS Wiring Diagrams 092866006 08 1001802 INO 51210402 39403 35079 38 03 yOv18 y18 3019 118 39NY80 5U0 Sor og cau a Td Nd 5101103 SY MOHS 510844575
126. LVTTVISN JHL DI 88438 HOldVOY 101140 IHL 98150 NIHM 553135104 3995 3411231044 TN TW Coo HOLOINNOD Q3XI3 T YOLOINNOD 318YAON 4115 TYNINHIL 1314 2 7 4000110 JHL OL AINO 031144 51 DNIUIM 53104 78 LHM df 193130 MOTION LTTM 9414352119 1531 JONYHO HOLINON 3 1AM35 dMY 10114 48 418 4090 70 173542194 100 769 L 3S0d ISVONNVHO ___ 2813 did 154 80112 4 7 12 01215 54 HOLIMS NOLING HS d G 158 80139399 SISI 10124115 H 2 quvog 111981 401939195 H D 35100 1109413 41114 4 117 39 MH35 11019819 340 3114433 31714 35104 28 217 __ NIV 1109819 910189 1 0 3ATVA 110441002 5 8 1 59 100 010091051 52 2409 107 000 Alddfl5 H3M d Appendix 228 Wiring Diagrams Panasonic 2 2 Field Wiring U 4 5 6ML5XPQ 6161 9045 51 HOOQNI 8 3417 H3M0d H 3411 H3M0d 3417 H3M0d 8 2 S3UIM 4 7197 S3UIM 7 318V S3UIM 4 3503 3504 3503 CD HILIMS D HILIMS CD HOLINS 7 1 1 3NI1 NOISSINSNVUL 3NI1 NOISSINSNVUL 31872 S3UIM 318 2 53 1194 49410 pue 1055914 02 941 12919 aseud pasJaAaJ JINPOdd 941 Hulu
127. MAGN ETIC RELAY FAN MAGNE MAGN ETIC RELAY DRAIN PUMP MAGNET 250 10 TRANSFORMER 220 240 22 FUSE 2 USE TERMINAL STRIP POWER CONNEC G ADAPTOR EMITTING DIODE TERMINAL STRIP CONTROL TERMINAL STR ERVICE_MONITOR GREE ELECTRONIC EXPANSION VALVE CONNECTOR FOR OPTIONAL PARTS OTOR FAN OPTIONAL PART CONNECTOR WIRING ADAPTOR MOTOR DRAIN PUMP FUSE Q50V 16 CONNECTOR WIRING ADAPTOR ELECTRIC HEATER ELECTRONICAL APPENDICES EARTH LEAK DETECTO 0 FIELD WIRING LIVE NEUTRAL T CONNECTOR e WIRE CLAMP S PROTECTIVE EARTH SCREW Bs 1 USE COPPER CONDUCTORS ONLY 2 WHEN USING THE CENTRAL REMOTE CONTROLLER SEE MANUAL FOR CONNECTION TO THE UNIT 3 WHEN INSTALLING THE ELECTRIC HEATER CHANGE THE WIRING FOR THE HEATER CIRCUIT THE MAIN POWER SUPPLY HAS TO BE SUPPLIED INDEPENDENTLY 4 FOR HIGH OR LOW ESP OPERATION CHANGE THE WIRING CONNECTION OF X44 AS SHOWN ON THE WIRING DIAGRAM
128. Malfunction code Inspection Malfunction code blinks when a malfunction occurs LO Capacity code Indoor unit system code Indoor unit type code J Progression code Example of capacity code display Indoor unit system code Example model Display CS 25LM 028 EE CS 63UM 071 Display Product classification System classification system indoor unit c UM system Outdoor air processing unit UM system Standard indoor unit n UM system New ceilling suspended cassette Indoor unit type code Display Type Model Wall mounted CS KM L 2 way blow CS LM E Corner CS DM Roundflow CS UM Ceiling suspended CS TM Concealed ceiling CS FM Floor standing PCS PM Concealed ceiling large CS EM Concealed floor standing type CS RM 5 600x600 4 way blow CS YM Outdoor model code Display Type 1 AA3 UM MX1 Inverter UM MA1R Modular Model CU MX1 A92 AAS AAA UM Heat Recovery PA MA1R CU ME1 UM MX3 ME3 RA10A U ME3 U MX3 AAE UM MX4 Inverter Series 4 ME4 Heat Recovery Series U ME4 AQE Mini UM ML4 MLS U ML4 U ML5 Troubleshooting Panasonic 7 Troubleshooting by Remote Controller 25 Remote Controller Service Mode How to Enter the Service Mode Normal operation Field set mode mode Push the but
129. Operation To prevent any trouble in the period of installation at site the system is provided with a test operation mode enabling check for incorrect wiring stop valve left in closed coming out or misplacing with suction pipe thermistor or discharge pipe thermistor and judgment of piping length refrigerant overcharging and learning for the minimum opening degree of electronic expansion valve CHECK OPERATION FUNCTION Press the TEST button for 5 seconds 10 sec to 10 minutes Step 2 20 sec to 2 minutes Step 3 10 minutes Step4 6 e Stop valve close check e Wrong wiring check e Piping length check 3 minutes Step 7 15 minutes Step 8 5 seconds Step 9 2 minutes Test Operation LED display H1P H7P O ON OFF BLINK 00270000 02700000 02700000 270000 0 0900000 300000 0900000 121 Field Setting Urban Multi ML5 Mini UM Heat Pump 122 Test Operation Panasonic Troubleshooting Part 7 Troubleshooting 1 Symptom based Troubleshooting 125 2 Troubleshooting by Remote Controller 128 2 TEST ut eu beta 128 2 2 Self diagnosis by Wired Remote Controller 129 2 3 Self diagnosis by Wireless Remote Controller
130. Outdoor Unit Malfunction of Discharge Pipe Thermistor R2T 175 3 28 45 Outdoor Unit Malfunction of Thermistor RST R5T for 176 124 Urban Multi ML5 Mini Heat Pump 3 29 5 Outdoor Unit Malfunction of Thermistor 177 3 30 47 Outdoor Unit Malfunction of Thermistor R7T for Unit NO ERES 178 3 31 49 Outdoor Unit Malfunction of Thermistor R47 179 3 32 Outdoor Unit Malfunction of High Pressure Sensor 180 3 33 27 Outdoor Unit Malfunction of Low Pressure Sensor 181 3 34 Outdoor Unit Malfunction of PC Board 182 3 35 Outdoor Unit Malfunction of Inverter Radiating Fin 183 3 36 5 Outdoor Unit Inverter Compressor Abnormal 184 3 37 LE Outdoor Unit Inverter Current 185 3 38 5 Outdoor Unit Inverter Start up Error 186 3 39 LZ Outdoor Unit Malfunction of Transmission between Inverter Gontrol PO BOSE De aie ote des 187 3 40 Outdoor Unit High Voltage of Capacitor in Main niverer Creu
131. PER CONDUCTORS ONLY Appendix 21W23776 1D 231 Wiring Diagrams Urban Multi ML5 Mini UM Heat Pump 5 40 50 80 125LM3HPQ 230V 4050 00125 CLASS AP TR XZM F2U fe indoor D UM SWITCH BOX 335 EMEN SER di M RIT RT RT EE I COLORS BLK BLACK BLU BLUE BRN BROWN NT INPUT FROM ORG ORANGE ae PNK PINK OUTSIDE Note 3 RED RED CENTRAL REMOTE WHT WHITE MP CONTROLLER Note YLW YELLOW WIRED REMOTE CONTROLLER Note FELD gt LME Wm Tt N NEUTRAL gt CONNECTOR pe o WIRE CLAMP PROTECTIVE EARTH ole NOTE2 RECEIVER DISPLAY UNT SCREW R FLOAT SWITCH THERMISTOR CO LIMIT SWITCH SWING FLAP EARTH LEAK DETECTOR PRINTED CIRCUIT BOARD MAGNETIC RELAY 9 LIGHT EMITTING DIODE FILTER SIGN RED CAPACITOR THERMAL FUSE 152 0 M1F EMBEDDED MAGNETIC RELAY S SWITCH MAIN SUB FUSE 250V 5A TAR TRANSFORMER 220 240V 22V 552 SELECTOR SWITCH WIRELESS ADDRESS SET FIELD FUSE TERMINAL STRIP POWER CONNECTOR FOR OPTIONAL PARTS cu e m TERMINAL STRIP CONTROL CONNECTOR WIRING ADAPTOR FOR SERVICE MONITOR GREEN FLECTRONIC XPANSION VALVE ELECTRICAL APPENDICES RECEIVER DISPLAY UNIT ATTAC
132. PL PRESSURE SENSOR LOW 5 1 ea EE e O Z Z e O lt gt e oc lt gt 221 lt gt gt lt gt MARKING COLOR RED SUBCOOLING GAS PIPE THERMISTOR SUCTION 1 THERMISTOR 1 42 M n L1 D CRANKCASE HEATER LEAD WIRE E1HC THERMISTOR DISCHARGE SOLENOID VALVE LEAD WIRE SOLENOID VALVE LEAD WIRE PRESSURE SENSOR HIGH LEAD WIRE THERMISTOR SUCTION 2 CONNECTOR COLOR BLACK CONNECTOR COLOR WHITE HIGH VOLTAGE CONNECTOR COLOR GRAY CONNECTOR COLOR PINK HIGH VOLTAGE CONNECTOR COLOR RED MARKING COLOR GREEN HIGH VOLTAGE LOW VOLTAGE PRESSURE SWITCH LEAD WIRE S1NPH MARKING COLOR BLUE ELECTRONIC EXPANSION VALVE Refrigerant Circuit 44 Functional Parts Layout 2 2 U 4 5 6ML5DPQ Panasonic Birds eye view Lu or lt a Lu cc CE z z eu C5 2 c E 9 25 5 5 2 gt s iz 2 eim a 2 15 gt E A lt us Sig gt cc OIS Ole Eg 54 Qoo o EXE
133. Pipes 157 3 13 TS Indoor Unit Failure of Combination Between Indoor unit PC Board and Fan PC 158 3 14 7 Indoor Unit Malfunction of Thermistor R1T for Suction Air 159 3 15 44 Indoor Unit Malfunction of Thermistor for Discharge Air 160 3 16 ff Indoor Unit Malfunction of Humidity Sensor System 161 3 17 Su Indoor Unit Malfunction of Thermostat Sensor in Remote CoOntellef 162 3 1844 Unit PC Board Defect 163 3 19 2 2 Outdoor Unit Actuation of High Pressure Switch 164 3 20 4 Outdoor Unit Actuation of Low Pressure Sensor 166 3 21 5 Inverter Compressor Motor LOCK 168 3 22 E Malfunction of Outdoor Unit Fan Motor 169 3 23 5 Outdoor Unit Malfunction of Moving Part of Electronic Expansion Valve Y1E 170 3 24 75 Outdoor Unit Abnormal Discharge Pipe Temperature 172 3 25 5 Outdoor Unit Refrigerant 173 3 26 Outdoor Unit Malfunction of Thermistor R1T for Outdoor Air 174 3 27 43
134. Remote controller thermostat sensor is used for temperatures from 23 C to 27 C E Body thermostat sensor is used for temperatures from 27 C to 30 E F And assuming suction temperature has changed from 30 C to 18 C F A Body thermostat sensor is used for temperatures from 30 C to 25 C F D Remote controller thermostat sensor is used for temperatures from 25 C to 21 C D B Body thermostat sensor is used for temperatures from 21 C to 18 Function Panasonic Heating 32 Preset temperature Ts 30 28 26 24 22 20 18 16 Function 5 5 4 52 Outline of Control Indoor Unit When heating the hot air rises to the top of the room resulting in the temperature being lower near the floor where the occupants are When controlling by body thermostat sensor only the unit may therefore be turned off by the thermostat before the lower part of the room reaches the preset temperature The temperature can be controlled so the lower part of the room where the occupants are doesn t become cold by widening the range in which thermostat sensor in remote controller can be used so that suction temperature is higher than the preset temperature 555555 2555 CROP MULA rth gt mt 12 14 16 28 30 32 34 Suction temperature TH1 E Differential Range in which body thermostat sensor can be used au
135. TION HEAVY SET MODE NO to 10 FIRST CODE NO to 0 and SECOND CODE NO to 02 Test Operation 3 1 4 Setting Contents and Code No UM Indoor unit Mode Setting Second Code No Note 3 Details No Switch Setting Contents N T Super Approx Approx Filter contamination heavy light Setting for long life jo p display time to clean air i filter Approx Approx Sets display time to clean ife Light 2500 Heavy 1250 1 air filter to half when there hrs hrs is heavy filter 10 Standard Approx Approx 20 contamination 200 hrs 100 hrs Long life filter type Long life filter SuPer long life Thermostat sensor remote rjumeeeemmme Te me Display time to clean air filter calculation Completion of _ 7 Airflow adjustment O airflow of airflow 5 21 adjustment ment Optional accessories output selection field Indoor unit turned Operation Malfunction 6 selection of output for adaptor for wiring ON by thermostat output output ON OFF input from outside Set when ON External protection Forced OFF ONOFF contro 9 Thermostat differential changeover 05 8 Set when remote sensor is to be used __ OFF by thermostat fan speed L1L Set fan speed FF 1 C LL Automatic mode differential 02 1 03 2 automatic temperature differential Notequipped To 2
136. Troubleshooting by Indication the Remote Controller Urban Multi ML5 Mini UM Heat Pump Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred power supply voltages between L1 and L2 L2 and L3 and L1 and L3 fallen within the range of 380 to 415V 10 50 Hz and between L and N within the range of 220 to 240 10 50 Hz NO Correct the power supply voltages If L2 or Phase N is open replace the switch box YES Check the inverter power transistor 1 Is the power transistor faulty YES Replace the inverter PC board assy A2P yw Check for the PC board conditions NO In case of significant failure the PC board may have got faulty due to faulty compressor Consequently even if the PC board is replaced it may get faulty again To avoid that recheck the compressor for grounding and for any broken wires Furthermore even after replacing the PC board carry out inspections NO on the compressor Is the resistance Replace the fan motor above standard value YES When the compressor is running measure the voltage between and of electrolytic capacitor C C YES Monitor the voltage Is the measured voltage Instantaneous voltage drop 220 VDC or more NO Replace the inverter PC board A1P S2605 1 Inverter s Power Transistors Check Refer to information
137. Urban Multi ML5 Mini UM Heat Pump 3 17 u Indoor Unit Malfunction of Thermostat Sensor Remote Controller Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting d Note 162 gt fn bn 7 All indoor unit models Malfunction detection is carried out by temperature detected by remote controller air temperature thermistor Note1 When the remote controller air temperature thermistor becomes disconnected or shorted while the unit is running Defect of remote controller thermistor Defect of remote controller PC board Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Turn power supply OFF then power ON again Is displayed on the remote controller gt Replace remote controller External factor other than equipment malfunction for example noise etc V2787 In case of remote controller thermistor malfunction unit is still operable by suction air thermistor on indoor unit Refer to thermistor resistance temperature characteristics table on P251 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 18 i Outdoor Unit PC Board Defect Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction
138. Urban Multi ML5 Mini UM Heat Pump Push the SET button and match with the LEDs No 1 15 push the RETURN button and confirm the data for each setting Data such as addresses and number of units is expressed as binary numbers the two ways of expressing are as follows 92102009020 16 4 1 32 8 2 200 0000 16 64 No 12 128 32 000 0000 4 1 No 13 8 2 The No 1 cool heat unified address is expressed as a binary number consisting of the lower digits 63 In the address is 010110 binary number which translates to 16 4 2 22 base 10 number In other words the address is 22 The number of terminal blocks for No 12 and 13 is expressed as an 8 digit binary number which is the combination of four upper and four lower digits for No 12 and 13 respectively 0 128 In the address for No 12 is 0101 the address for No 13 is 0110 and the combination of the two is 01010110 binary number which translates to 64 16 4 2 86 base 10 number In other words the number of terminal block is 86 See the preceding page for a list of data etc for No 0 25 Test Operation 3 2 2 Cool Heat Mode Switching There are the following 4 cool heat switching modes Set cool heat separately for each outdoor unit system by indoor unit remote controller Set cool heat separately for each outdoor unit system by cool heat switching remote controller Set cool heat for more than o
139. V 50Hz 60Hz Fan Motor 1063W 16130W Lo Motors Thermal protector 130 C OFF 80 C ON Capacitor for Fan Motor 3 0u F 400V 9 0uF 400V ST8601A 1 94 L250 Thermistor Suction Air 20kQ 25 C Thermistor for Heat R3T ST8605 6 8 L 1250 ST8605 6 08 L 1250 Exchanger oh Temp 20kQ 25 C 20kQ 25 C Thermistor Heat ST8602A 6 06 L 1250 ST8602A 6 96 L 1250 Exchanger 20kQ 25 C 20kQ 25 C Fuse F1U 250V 05 2 NE um Parts Name Symbol 20 S 25KM3 S 32KM3 S 40KM3 S 50KM3 S 63KM3 Remark HPR HPR HPR HPR HPR HPR Thermistors a Remote Remote a CZ 02RT11P Option Controller Wireless Remote 220 240 50Hz p Fan Motor M1F 1040W 1043W Motors Thermal protector 130 C OFF 80 C Lo 24 35840333 1 20 21 35840550 1 Thermistor Suction Air o v Thermistor for Heat 518605 2 08 L400 Thermistors Exchanger High Temp 20kQ 25 C Thermistor for Heat ST8602 2 06 L400 Exchanger 20kQ 25 C Float Switch S1L OPTION eee Du ME 36 List of Electrical and Functional Parts Parts Name Symbol 20 S 25PM3 S 32PM3 S 40PM3 S 50PM3 63 Remark HPS HPS HPS HPS HPS HPS Controller Remote Option Controller 222 222 CZ 02RWF12P AC 220 240V 50Hz gu e Fan Motor 1015 1025W 135 Otors Thermal protector 135 C OFF 120 C ON Capacitor for Fan Motor 1 04
140. VP Me turns on with low pressure protection B Heating Operation Used for high pressure protection control low pressure protection control discharge pipe Compressor Compressor PI control temperature protection control and compressor operating frequency upper limit control with inverter protection control Outdoor unit far STEP 7777 Fourwayvave Main Pl control ES Hot gas bypass valve SVP 4 25 turns on with low pressure protection Heating operation is not functional at an outdoor air temperature of 24 CDB or more Function 49 Basic Control Urban Multi ML5 Mini UM Heat Pump 2 2 Compressor PI Control Compressor PI Control Carries out the compressor capacity PI control to maintain Te at constant during cooling operation and Tc at constant during heating operation to ensure stable unit performance Cooling operation Controls compressor capacity to adjust Te to Te Low pressure equivalent saturation temperature achieve target value TeS C Te setting Set in Set up mode 2 TeS Target Te value Varies depending on Te setting operating L M Norma H factory frequency etc setting Heating operation Controls compressor capacity to adjust Tc to Tc High pressure equivalent saturation temperature achieve target value TcS C Tc setting TcS Target Tc value Varies depending on Tc setting operatin L M N 9 9
141. Vapor 36 13 40 83 46 02 51 73 58 00 64 87 72 38 80 57 89 49 99 18 eet 101 32 I 199 69 121 07 133 36 146 61 160 89 176 24 192 71 210 37 229 26 249 46 271 01 293 99 318 44 344 44 372 05 370 90 401 34 400 06 432 36 430 95 465 20 463 64 499 91 498 20 536 58 534 69 1 575 26 573 20 616 03 613 78 658 97 656 52 704 15 701 49 751 64 748 76 801 52 798 41 853 87 850 52 908 77 905 16 966 29 962 42 1026 5 1022 4 j 1089 5 1085 1 1155 4 1150 7 1224 3 1219 2 1296 2 1290 8 1371 2 1365 5 1449 4 1443 4 1530 9 1624 6 1615 8 1609 2 1704 2 1697 2 1796 2 1788 9 1891 9 1884 2 1991 3 19832 2094 5 2086 2 2201 7 3219311 2313 0 2304 0 2428 4 2419 2 2548 1 2538 6 2672 2 2662 4 2800 7 2790 7 2933 7 2923 0 3071 5 3061 2 3214 0 3203 6 3361 4 3351 0 3513 8 3503 5 3671 3 3661 2 3834 1 3824 2 4002 1 3992 7 1175 7 4166 8 Precautions for New Refrigerant R 410A 259 Precautions for New Refrigerant R 410A Urban Multi ML5 Mini UM Heat Pump 1 2 Refrigerant Cylinders Cylinder specifications he cylinder is painted refrigerant color pink cylinder valve is equipped with a siphon tube Cylinder Q 2 2 Refrigerant be
142. WNIOY 42 1 91138949 YIH QA RA 991 1009105 420111407 105591402 19114 391 T 191 ide pc 1019 05 8911 191 149 E 131114 103195 34158914 M07 7 94755214 YOIH 1104 9214195 Kem 1104 4NH 9214195 3A 0A 101n62J 2 31755244 19 E 191114 JALPA UOLSURdXa JabueyoxXa 1094 3100112213 9414 319100 9A 0A 015194 9 9110112913 Appendix Piping Diagrams Urban Multi ML5 Mini UM Heat Pump 1 2 Indoor Unit LM3 UM4 YM3 DM3 FM3 EM3 TM3 KM3 PM3 RM3 amp Gas piping connection Heat exchanger Eu connection 15 9 or less ____ _ Attached piping Above 19 1 Liquid piping connection port Flare connection N gt 1 Filter Electronic Filter expansion valve DU220 602J Gode Used for gas superheated degree control while in Electronic expansion valve cooling operation or subcooled degree control while in heating operation Suction air temperature mE Used for gas superheated degree control while in 3 Liquid pipe R2T cooling operation or subcooled degree control while in heating operation Used for gas superheated degree control while in 2075132740750 6378071007126 224 Appendix Panasonic
143. according to the temperature detected by the discharge pipe Malfunction temperature sensor Detection Malfunction When the discharge pipe temperature rises to an abnormally high level Decision When the discharge pipe temperature rises suddenly Conditions Supposed Faulty discharge pipe temperature sensor Causes Faulty connection of discharge pipe temperature sensor Troubleshooting 172 Faulty outdoor unit PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred N Caution Discharge pipe temperature is 120 C or higher when the unit stop by malfunction YES Refrigerant shortage compression defect etc Defect of the refrigerant system Pull out the discharge pipe thermistor from the outdoor PC board and then make measurement of resistance using a multiple meter the characteristics of the discharge pipe thermistor normal 3 5 400KQ ne Replace the discharge pipe thermistor YES Replace outdoor unit PC board A1P V3068 Refer to Thermistor Resistance Temperature Characteristics table on P252 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 25 5 Outdoor Unit Refrigerant Overcharged Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troublesh
144. ach transport fitting O Is the wiring performed as specified O Are the designated wires used O Is the grounding work completed Use a 500V megger tester to measure the insulation Do not use megger tester for other circuits than 380 415V circuit O Are the setscrews of wiring not loose Is the electrical component box covered with an insulation cover completely Check the below items Power wiring Control transmission wiring between units Earth wire Check on refrigerant piping proper The design pressure of this product is Are pipe insulation materials installed securely Liquid and gas pipes need to be insulated Otherwise causes water leak O Are respective stop valves on liquid and gas line securely open Check on amount of refrigerant Is refrigerant charged up to the specified amount charge If insufficient charge the refrigerant from the service port of stop valve on the liquid side with outdoor unit in stop mode after turning power on O Has the amount of refrigerant charge been recorded on Record Chart of Additional Refrigerant Charge Amount V3180 1 1 2 Turn Power On Turn outdoor unit power on O Be sure to turn the power on 6 hours before starting operation to protect compressors O Close outside panels of the outdoor unit Turn indoor unit power on Carry out field setting on outdoor PC board Hj V3056 74 Test Operation
145. acity Mixing of non condensable gas Decreased fan airflow rate AMEN Improper model selection In heating Excessive refrigerant charging 46 C High ambient temperature lt ls the outdoor temperature not more than 46 C Short circuit lt 15 the suction air temperature not more than 27 C High ambient temperature lt the indoor temperature not more than 27 C lt ls the connector properly connected Are the thermistor resistance characteristics normal lt 15 the outdoor temperature not more than 16 CWB lt ls the connector properly connected Are the thermistor resistance characteristics normal Is the heat exchanger clogged In cooling lt ls air or else mixed in the refrigerant system Faulty fan the fan motor be rotated with hands motor Are the motor coil resistance and insulation normal Faulty control PC board lt lf a spare PC board is mounted is the capacity setting properly made Including capacity setting Dirty filter Is the air filter clogged Obstacle lt 5 there any obstacle in the air passage Refer to P 173 lt 15 the indoor unit too small compared to the large sized outdoor unit 1 In cooling it is normal if the outdoor unit electronic expansion valve EV1 is fully open 2 In heating the indoor unit electronic expansion valve is used for subcooled degree control For details refer to Electro
146. agnosis for 25 malfunction code V2826 199 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 48 Excessive Number of Indoor Units gt 2 Remote Controller Display Applicable All indoor unit models Models Method of Malfunction Detection Malfunction Decision Conditions Excess of connected indoor units Defect of outdoor unit PC board A1P Mismatching of the refrigerant type of indoor and outdoor unit Setting of outdoor PC board was not conducted after replacing to spare parts PC board Supposed Causes Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the outdoor PC board replaced to spare parts PC board The outdoor PC board replaced is wrong check PC board type The total of indoor units displaying Li and indoor units connected to the same refrigerant system is within connectable number of unit There are too many indoor units within the same refrigerant system Push and hold the RESET button on the outdoor unit PC board for 5 seconds NO Does a malfunction occur Normal YES Does the refrigerant type of indoor and outdoor unit N E Matches the refrigerant type of indoor and outdoor unit Replace outdoor unit PC board A1P V3169 The number of indoor units that
147. and hold the RESET normal button on the master outdoor unit PC board for 5 seconds YES The unit will not run for up to 12 minutes After fixing incorrect wiring push and hold the RESET button on the outdoor unit PC board for 5 seconds Does a malfunction occur Normal YES Does i malfunction occur NO for all indoor units in the system YES Replace indoor unit PC board Replace outdoor unit PC board A1P 205 Troubleshooting by Indication on the Centralized Remote Controller Urban Multi ML5 Mini UM Heat Pump 4 Troubleshooting by Indication on the Centralized Remote Controller 4 1 Remote Controller and Indoor Unit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 206 TN LI All indoor unit models Centralized Remote Controller wz Malfunction of Transmission between Centralized Microcomputer checks if transmission between indoor unit and central remote controller is normal When transmission is not carried out normally for a certain amount of time Malfunction of transmission between optional controllers for centralized control and indoor unit Connector for setting master controller is disconnected Failure of PC board for central remote controller Defect of indoor unit PC board N Caution Has an indoor unit once connected been remove o
148. anges in the airflow rate The airflow direction 1 not corresponding to that displayed on the remote controller The flap does not swing Indoor unit gt In cooling operation the ambient humidity is high This indoor unit is installed in a place with much oil or dust lt Indoor unit gt Immediately after cooling operation stopping the ambient temperature and humidity are low Indoor and outdoor units gt After the completion of defrosting operation the system is switched to heating operation The airflow direction is not reproduced according to the setting A white mist comes out from the system 126 The remote controller displays This remote controller has no Use a remote controller with UNDER CENTRALIZED option to select cooling operation option to select cooling operation CONTROL COOL HEAT selection is made using the COOL HEAT selection remote controller Use the COOL HEAT selection remote controller to select cool or heat The system is in preparation mode of operation Wait for a period of approximately 10 minutes In heating operation when the room temperature reaches the set degree the outdoor unit will stop while the indoor unit is brought to fan LL operation so that no one gets cold air Furthermore if fan operation mode is selected when other indoor unit is in heating operation the system will be brought to fan LL operation The fan LL operation is also enab
149. ard Connect the thermistor and turn on again Hesistance is normal when measured after disconnecting the thermistor R3T from the indoor unit PC board NO Replace the thermistor Replace the indoor unit PC board V2785 Refer to thermistor resistance temperature characteristics table on P251 Troubleshooting 157 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 13 o Indoor Unit Failure of Combination Between Indoor unit PC Board and Fan PC Board Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 158 74 gt E 5 40 125 Conduct open line detection with PC board for fan A2P using indoor PC board When the communication data of PC board for fan A2P is determined as incorrect The possible causes are m Malfunction of PC board for fan A2P Connection defect of capacity setting adapter Setting mistake on site Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution Is the type of PC board for fan A2P correct Replace it with correct PC board for fan A2P Was indoor PC board A1P replaced with supplementary PC board correct capacity setting adaptor install
150. at ON Indoor unit stop or thermostat OFF Malfunction Standby Restart standby Compressor stop Pressure equalization prior to startup Malfunction Standby Indoor unit stop or Startup control thermostat OFF Cooling startup Pump down control Heating startup Indoor unit thermostat ON control Malfunction Standby Indoor unit stop or Normal operation thermostat OFF Compressor PI control Electronic expansion valve PI control Protection control Cooling or heating operation Malfunction Standby Oil return IN conditions are met Oil return operation Defrost IN conditions are met Defrosting operation No Note In the event indoor unit stops or the thermostat turns OFF while in oil return operation or defrosting operation pump down residual operation is performed on completion of the oil return operation or defrosting operation V3152 48 Function Panasonic Basic Contr 2 Basic Control 2 1 Normal Operation B Cooling Operation Used for high pressure protection control low pressure protection control discharge pipe Compressor Compressor PI control temperature protection control and compressor operating frequency upper limit control with inverter protection control Outdoor unit fan Cooling fan contra Fourwayvave _ expansion 208 480 pls SG Hot gas bypass valve S
151. auid OD i Bmes m 54 O Piping Gas Flare connection connections Dart 25 E pg 8 as Foamed polystyrene polyethylene CZO2KPY12P White Ral 9010 Decoration Panel Dimensions Resin net with mold resistance Installation and Seaton manual Paper for installation Drain hose Clamp metal Washer fixing plate Sealing Pads Clamps Screws Washer for hanger bracket Insulation for fitting Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB Standard Accessories equivalent refrigerant piping 7 5m horizontal Notes Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 7 5m horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Specifications 15 Specifications Urban Multi ML5 Mini UM Heat Pump Ceiling Mounted Cassette Corner Type FI TECHNCALSPEGIICATIONS 0 SGZMGHPS vum Capaciy Nominal Dimensions De m 70 wm Uum 3 a 2 2 24 nich mm Dimerions PPI _ xchanger Area m 0 180 0 180 0 180 0 226 Nr of S
152. can be connected to a single outdoor unit system depends on the type of outdoor unit 200 Troubleshooting 3 49 i Address Duplication of Central Remote Controller Remote LI Controller Display Applicable All indoor unit models Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Address duplication of centralized remote controller Causes B Defect of indoor unit PC board Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Optional controllers for centralized control are connected to the indoor unit YES Address duplication of central remote controller The setting must be changed so that the central remote control address is not duplicated Replace indoor unit PC board V2828 Troubleshooting 201 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 50 Lit Malfunction of Transmission between Central Remote Controller and Indoor Unit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 202 d N All indoor unit models Centralized controller Microcomputer checks if transmission between indoor unit and centralized remote controller is normal When transmission is not carried out normally for a certain amount of
153. capacity Heating 80 10 Hein w Casing Material Galvanised steel De m 8e 8B Heg m _ unit 80 o Inside mm 2 096 Dimensions Length ELSE 2152 A Dimensions Se Heat Dimensions NrofPasses 7 __ 3 __ __ Exchanger Nosas 19 1 1 Cross fin coil Multi louver fins and Hi XSS tubes Turbo fan Low 8 1s uma Low mimm 120 48 1M 5M 5 ME e 5M Motor Sis w high Refrigerant R 410A Se o Sound Level Cooling power nomna m Sound EM gr o DU 9 3 A Liquid OD Flare connection Diameter mm SEHK 22 Gas Flare connection VP25 1 0 25 O D 32 Foamed polystyrene polyethylene Foamed Polyurethane 7 Dew mm S50 50 Installation and operation manual Drain hose Washer for hanging bracket Screws Sealing Pads Insulation for fitting Standard Accessories Accessories Clamp for drain ho
154. ce and packing 1 2UNF20 is necessary for mouthpiece size of charge hose Refrigerant piping See the chart below Copper tube material and thickness R 407C R 410A Pipe size Thickness t mm 06 4 69 5 127 O Material 615 9 1 2H 1 2H 1 2H 619 1 022 2 025 4 028 6 031 8 038 1 044 5 lt 1 1 Soft Annealed Hard Drawn Precautions for New Refrigerant R 410A 261 Precautions for New Refrigerant R 410A Urban Multi ML5 Mini UM Heat Pump 1 Flaring tool Specifications Dimension Unit mm Tube O D Nominal size Class 2 R 410A Class 1 Conventional __ 65 16 6 Differences Change of dimension Dimension A For class 1 407 For class 2 R 410A Conventional flaring tools can be used when the work process is changed change of work process Previously a pipe extension margin of 0 to 0 5mm was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 1 0 to 1 5mm For clutch type only Conventional tool with pipe extension margin adjustment can be used 262 Precautions for New Refrigerant R 410A 2 Torque wrench 9 Specifications e Dimension Unit mm Nominal size Class 1 Class 2 Previous 12 No change tightening torque No change in pipes of other sizes Change of dimension B Only
155. charged in liquid state with cylinder upright position Caution Do not lay cylinder on its side during charging since it cause refrigerant in gas state to enter the system Handling of cylinders 1 Laws and regulations R 410A is liquefied gas and the High Pressure Gas Safety Law must be observed in handling them Before using refer to the High Pressure Gas Safety Law The Law stipulates standards and regulations that must be followed to prevent accidents with high pressure gases Be sure to follow the regulations 2 Handing of vessels Since R 410A is high pressure gas it is contained in high pressure vessels Although those vessels are durable and strong careless handling can cause damage that can lead to unexpected accidents Do not drop vessels let them fall apply impact or roll them on the ground 3 Storage Although R 410A is not flammable it must be stored in a well ventilated cool and dark place in the same way as any other high pressure gases It should also be noted that high pressure vessels are equipped with safety devices that releases gas when the ambient temperature reaches more than a certain level fusible plug melts and when the pressure exceeds a certain level spring type safety valve operates 260 Precautions for New Refrigerant R 410A Precautions for New Refrigerant R 410A 1 3 Service Tools R 410A is used under higher working pressure compared to previous refr
156. cond code No Push the timer button and check the settings Push the 45 button to return to the normal mode Example When setting the filter sign time to Filter Dirtiness High in all group unit setting set the Mode No to 10 Mode setting No to 0 and setting position No to 02 89 Field Setting Urban Multi ML5 Mini Heat Pump 3 1 3 Simplified Remote Controller CZ 02RE12P CZ 03RE12P 90 A AOOO ae 357 BS8 BS9 B510 JA _ Remove the upper of remote controller When the normal mode press the BS6 BUTTON 2 field set and the FIELD SET MODE is entered Select the desired MODE No with the BS2 BUTTON 3 temperature setting and the 853 BUTTON temperature setting During group control when setting by each indoor unit mode No 20 22 and 23 have been selected push the BS8 4 BUTTON unit No and select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group Push the 859 BUTTON set and select FIRST CODE NO Push the BS10 BUTTON 6 set B and select SECOND CODE NO Push the 857 BUTTON set cancel once and the present settings are SET Push the 856 BUTTON 8 field set to return to the NORMAL MODE Example If during group setting and the time to clean air filter is set to FILTER CONTAMINA
157. ct the SECOND CODE NO Push the g button once and the present settings are SET Push the button to return to the NORMAL MODE NO A Example If during group setting and the time to clean the air filter is set to FILTER CONTAMINATION HEAVY SET MODE NO to 10 FIRST CODE NO to 0 and SECOND CODE NO to 02 1 Setting is carried out in the group mode however if the mode number inside the parentheses is selected indoor units can also be set individually The SECOND CODE number is set to 01 when shipped from the factory Do not make any settings not given in the table Not displayed if the indoor unit is not equipped with that function When returning to the normal mode 88 may be displayed in the LCD in order for the remote controller to initialize itself It is not possible to change field settings on the remote controller that is set to sub Po nm Test Operation Panasonic Field Setting 3 1 2 Wireless Remote Controller Indoor Unit CZ 02RW type CZ 01RW type Test Operation ook WN MODE NO FIELD SET MODE SECOND CODE NO FIRST CODE NO V2770 When the normal mode push the button for 4 seconds or more and operation then enters the field set mode Select the desired mode No with the button Pushing the 4 button select the first code Pushing the button select the se
158. d Pc HP pressure sensor detection value INV upper limit frequency Max High pressure limited INV upper limit frequency 3 step down from current compressor frequency After 10 sec Pos3 47MPa Keeping the current step lt 3 23 After 15 sec INV upper limit frequency 1 step up from current compressor frequency Pc gt 3 64MPa When occurring 10 times within 60 High pressure minutes HPS is activated without high standby gt pressure standby thus outputting the malfunction code In heating operation High pressure drop 04 or High pressure not limited Pc HP pressure sensor detection value lt 2 89 High pressure limited INV upper limit frequency 1 step down from current compressor frequency After 10 sec Pos3 04mPa Keeping the current step Pc lt 2 94MPa After 60 sec INV upper limit frequency 1 step up from current compressor frequency Pc gt 3 64MPa When occurring 10 times within 60 High pressure minutes HPS is activated without high standby gt pressure standby thus outputting the malfunction code 60 Function Panasonic Protection Control 4 2 Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure In cooling operation Low pressure not limited Pe lt 0 25MPa Pe LP pressure sensor detection value Pe
159. d Uni Required Galing Void Length 875x2 1365 NrofRows Rows Fem mm eee ____ T 0 184x2 0 287x2 0 287x2 Exchanger INrofStages INrofStages 10x2 Tubeplate Tube type Hi XSS 7 mE type Symmetric waffle louvre Hydrophilic aM Sirocco fn Quanity E 862 Heating 9 Quanity Phase cut control Fan Motor Output um Direct drive Refrigerant RATOA Sound api nomin Wm mw nominal sae 85 Pressure a gt 30 Type Flare connection Liquid Pe Dmew m 5 385 1 Piping m Flare connection Ban paom Heat Insulation Both liquid and gas pipes Model CZ 03KPL11P CZ 06KPL11P CZ 06KPL11P Colour White 10Y9 0 5 P uc Ep Panel Dimensions Width 1430 1920 1920 Dph m 6 amp 8 8 Weigh ____ O o oo Haigh o Air Filter Resin net with mold resistance Air direction control Up and downwards Refrigerant control Electronic expansion valve 9 Temperature control Microprocessor thermostat for cooling and heating Screws for fixing the paper pattern for installation Washer for hanging bracket Clamps Installation and operation manual Paper pattern for installation Insulation for fitting Drain hose Nominal cooling capacitie
160. d smoothly with hand after disconnect the connector of fan motor Has either the fuse F4U on the control PC board A1P or the fuse F1U on the inverter PC board A2P blown out NO YES If the F4U has blown out replace the fuse If the F1U has blown out YES NO replace the inverter PC board assy Check on connector of fan motor Refer to information Replace the fan motor on P 220 Has either the fuse F4U on the control PC board or the fuse F1U on the inverter PC board A2P blown out Are the resistances between pins above judgment NO YES If the FAU has blown out replace the fuse If the F1U has blown out replace the inverter PC NO board assy Replace the fan motor Replace outdoor unit PC board YES 169 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 23 5 Outdoor Unit Malfunction of Moving Part of Electronic Expansion Valve Y1E Y3E gt e P 2 Controller Display Applicable U 4 6ML5DPQ U 4 6ML5XPQ Models Method of Check disconnection of connector Malfunction Check continuity of expansion valve coil Detection Malfunction Error is generated under no common power supply when the power is on Decision Conditions Supposed Defect of moving part of electronic expansion valve Causes Defect of outdoor unit PC board A1P Defect of connecting cable
161. displayed on the Diagnose the cause with the remote controller air conditioner s failure diagnosis manual NO Has a once connected YES indoor unit been removed Reset power supply for all or its address optional controllers for changed centralized control simultaneously NO Is the ower supply for pply NO the indoor unit displaying a malfunction Turn the power supply of the indoor unit on transmission wiring YES disconnected or wired incorrectly Fix the wiring correctly Is transmission _ the group with all indoor units No of malfunctioning Set the group No malfunctioning indoor units correctly set YES Replace indoor unit PC board transmission wiring with the master controller disconnected or wired incorrectly NO Fix the wiring correctly Controller s connector for setting master controller Connect the connector correctly Replace the central PC board V2841 213 Troubleshooting by Indication the Unified ON OFF Controller Urban Multi ML5 Mini UM Heat Pump 5 2 Display Under Host Computer Integrate Control Blinks Repeats Single Blink Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 214 under host computer integrated control Repeats single blink Unified ON OFF controller Central controller
162. door unit fan 1 3 STEP 3 STEP8 STEP8 3 5 OFF Main electronic expansion Subcooling electronic Hot gas bypass valve e A lapse of 130 sec Ending conditions OR Pc Pe lt 0 3MPa lapse of 10sec gt 2 70 e A lapse of 1 to 5 min e Pc Pes0 39MPa Function 53 Special Control Urban Multi ML5 Mini UM Heat Pump 3 2 Oil Return Operation In order to prevent the compressor from running out of oil the oil return operation is conducted to recover oil flown out from the compressor to the system side 3 2 1 Oil Return Operation in Cooling Operation Start conditions Referring to the set conditions for the following items start the oil return operation in cooling Cumulative oil feed rate Timer setting Make this setting so as to start the oil return operation when the initial cumulative operating time reaches two hours after power supply is turned ON and then every eight hours Furthermore the cumulative oil feed rate is computed from Tc Te and compressor loads Outdoor unit actuator Oil return preparation Oil return operation Post oil return operation operation 52 Hz Full load Take the current step as the Same as the oil return Compressor upper limit 551 pressure constant operation mode Outdoor unit fan Fan control Normal cooling Fan control Normal cooling Fan control Normal cooling Main electronic expansion valve Subcooling electronic expansion valve EV
163. dress duplication of centralized remote controller Causes Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Are two or more centralized remote controllers connected Disconnect all centralized remote controllers except one and reset the power supply of the centralized remote controller Reset power supply of the centralized remote controller V2835 Troubleshooting 211 Troubleshooting by Indication on the Unified ON OFF Controller Urban Multi ML5 Mini UM Heat Pump 5 Troubleshooting by Indication on the Unified ON OFF Controller 5 1 Operation Lamp Blinks Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 212 Operation lamp blinks All models of indoor units Unified ON OFF controller Malfunction of transmission between optional controller and indoor unit Connector for setting master controller is disconnected Defect of unified ON OFF controller Defect of indoor unit PC board Malfunction of air conditioner Troubleshooting Panasonic Troubleshooting Troubleshooting Troubleshooting by Indication on the Unified ON OFF Controller Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Isa malfunction YES code
164. e Remote Controller Panasonic 3 22 Malfunction of Outdoor Unit Fan Motor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting 2147 i U 4 6ML5DPQ U 4 6ML5XPQ Malfunction of fan motor system is detected according to the fan speed detected by hall IC when the fan motor runs When the fan runs with speed less than a specified one for 6 seconds or more when the fan motor running conditions are met When malfunction is generated 4 times the system shuts down m Malfunction of fan motor m The harness connector between fan motor and PC board is left in disconnected or faulty connector Fan does not run due to foreign matters tangled Clearing condition Operate for 5 minutes normal B Open phase L1 or open phase AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has the voltage between 1 and N on the p supply termina board X1M fallen within the range of 22 Correct the power supply 220 to 240V 10 voltage 50 Hz If L1 N phases YES open replace the switch box Connector of fan motor is disconnected NO Is there any obstacle around the fan NO YES Connect the connector YES Remove the obstacle Can the fan be turne
165. e in Setting mode 2 Mode changing procedure Using the MODE button the modes can be changed as follows Push and hold the BS1 Normal Push the BS1 MODE button MODE button for 5 seconds one time Setting mode 2 Setting mode 1 MODE Push the BS1 MODE button one time MODE MODE C On e Off 9 Blinking H1P H1P H1P V2761 Mode changing procedure Set Select mode with BS2 SET button in each selection step Press BS1 MODE button for more than 5 sec Setting mode 1 Press BS1 MODE button Setting item selection Set Press BS3 RETURN button Setting condition selection Set Press BS3 RETURN button Initial condition Check item selection Set Press BS3 RETURN button Contents display Press BS3 RETURN button Setting condition Contents display Press BS3 RETURN button Press BS1 MODE button Press BS1 MODE button V2762 106 Test Operation a Setting mode 1 This mode is used to set and check the following items 1 Set items eee In order to make COOL HEAT selection in a batch of outdoor unit group change the setting e COOL HEAT selection IND Used to select COOL or HEAT by individual outdoor unit factory set e COOL HEAT selection MASTER eesse Used to select COOL or HEAT by outdoor unit group with the master unit e COOL HEAT selection SLAVE esseen Used to select COOL or HEAT by outdoor unit group
166. e malfunction When there is a stop due to malfunction the contents of the malfunction given below can be diagnosed by a combination of operation lamp INSPECTION display of the liquid crystal display and display of malfunction code It also lets you know the unit No during group control Operation lamp ON OFF button Display of indoor unit for which a malfunction has been detected Inspection display Malfunction code VLO50 135 Troubleshooting by Remote Controller Urban Multi ML5 Mini UM Heat Pump O ON Blink Malfunction Operation Malfunction contents Page code lamp indoor Unit A0 142 iaa 146 gt gt 146 150 152 153 154 Malfunction of thermistor R2T for heat exchange loose connection 156 disconnection short circuit failure gt gt m T ja C Malfunction of thermistor R3T for gas pipes loose connection 157 disconnection short circuit failure Failure of combination between indoor unit PC board and fan PC board 158 Malfunction of thermistor R1T for suction air loose connection O 159 disconnection short circuit failure Malfunction of thermistor for discharge air loose connection 160 disconnection short circuit failure Malfunction of humidity sensor system 161 Malfunction of thermostat sensor in remote controller 162 E o
167. e power transistor When an excessive current flows in the power transistor Instantaneous overcurrent also causes activation m Defect of compressor coil disconnected defective insulation Compressor start up malfunction mechanical lock Defect of inverter PC board 2 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Compressor inspection The compressor s coil is disconnected or the insulation is defective YES Replace the compressor Disconnect the connection between the compressor and inverter Make the power transistor check mode setting ON by service mode Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is stable YES Replace the inverter unit A2P NO There is instantenious power drop NO YES Correct power supply Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor V2812 Higher voltage than actual is displayed when the inverter output voltage is checked by tester Troubleshooting Panasonic 3 37 45 Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting Troubl
168. e setting position No is set to 01 at the factory Inthe Case of KM3 Switch SIBI Setting Wall mounted type Standard 13 23 00002000 Wall mounted type Slight increase Wall mounted type Normal increase Inthe Case of TM3 T sre 3 2735 Inthe Case of 20 80UM4 round outlet First Second Standard All Tee 5 IS High Ceiling 1 2 7 3 Higher Ceiling 2 3 3 5 Inthe Case of 100 125UM4 round outlet First Second Sod Celing height r Standard All Des gt High Ceiling 1 3 2 3 6 Higher Ceiling 2 3 6 4 2 In the Case of 20 80UM4 24 Way 3 Way 2 Way Outlets Mode First Second Ceiling height oe Setting 4 way Outlets 3 way Outlets 2 way Outlets 2 Standard N Lower than 3 1 m Lower than 3 0 m Lower than 3 5 m 13 23 High Ceiling Lower than 3 4 m Lower than 3 3 m Lower than 3 8 m Higher Ceiling S Lower than 4 0 m Lower than 3 5 m m Inthe Case of 100 125UM4 4 Way 3 Way 2 Way Outlets First Second Ceiling height 1 9 4 way Outlets 3 way Outlets 2 way Outlets E Standard N Lower than 3 4 m Lower than 3 6 m Lower than 4 2 m High Lower than 3 9 m Lower than 4 0 m Lower than 4 2 Higher Ceiling S Lower than 4 5 m Lower than 4 2 m 1 Mode No setting is done in a batch for the group make or confirm settings for an individual unit set the
169. e system interrupted the operation of the unit Check the error by using the error code displayed on the remote controller For an explanation of the error codes see Error codes on the remote controller on page 75 and solve the problem After correcting the problem press BS1 MODE button once and perform automatic refrigerant charging again starting from step 4 1 5 When charging is complete determine the weight of refrigerant that was added and fill in the amount in the Additional refrigerant charge label attached to service precautions plate on the unit 6 After adding the refrigerant do not forget to close the lid of the service port The tightening torque for the lid is 11 5 13 9 Nem Service port for adding refrigerant Pipe fixing plate Liquid line stop valve Procedure 2 Charging while the outdoor unit is at a standstill See figure 6 on page 75 1 80 Determine the weight of refrigerant to be charged additionally referring to the item Additional refrigerant charge in How to calculate the additional refrigerant to be charged on page 249 and fill in the amount in the Additional refrigerant charge label attached to the unit After the vacuum drying is finished open valve A and charge the additional refrigerant in its liquid state through the service port on the liquid stop valve taking into account following instructions Turn on the power of the outdoor un
170. e system using the UNDER CENTRALIZED centralized controller Blinking COOL HEAT centralized remote CONTROL which blinks for a display indicates that the system controller period of several seconds cannot be operated using the when the OPERATION button remote controller is depressed The system stops immediately The system is in preparation Wait for a period of approximately after turning ON the power mode of micro computer one minute supply operation 5 The system The remote controller displays The system stops due to an Remove causes of electrical makes malfunction codes U4 and interruption in communication noises intermittent U5 and the system stops but between units caused by If these causes are removed the stops restarts after a lapse of several electrical noises coming from system will automatically restart minutes equipment other than air operation conditioners Troubleshooting 125 Symptom based Troubleshooting Urban Multi ML5 Mini Heat Pump Symptom Supposed Gauss COOL HEAT selection is disabled The remote controller displays UNDER CENTRALIZED CONTROL and the COOL HEAT selection remote controller is provided This symptom occurs immediately after turning ON the power supply The system conducts fan operation but not cooling or heating operation The airflow rate is not reproduced according to the setting Even pressing the AIRFLOW RATE SET button makes no ch
171. eated degree Suction pipe1 Ts1 constant in heating operation and others Thermistor Subcooling heat EB exchanger gas pipe Tsh Used to control of subcooling electronic expansion valve Thermistor Suction pipe2 Ts2 Used to the calculation of an internal temperature of compressor etc RET Thermistor Heat exchanger Used to detect liquid pipe temperature of air heat exchanger determine defrosting deicer Tb operation and others Thermistor Liquid pipet Used to detect refrigerant over charge in check operation and others Thermistor ers Liquid pipe2 TI2 Used to detect refrigerant over charge in check operation and others In order to prevent the increase of high pressure when a malfunction occurs this EE S1PH HP 1 switch For INV switch is activated at high pressure of 4 0 MPa or more to stop the compressor 40 Refrigerant Circuit 5 O gt D 0011290002 9191 apis UO 1109 9214195 9015 HOLVINWNIIV 9411 piouajog X 191114 391 12111429 0 9 05 5 DK 991 419 1429 191114 1089 Wrst dUNSSddd 91155914 1104 92154195 1104 3214139 18 Nba 5 21159944 4 Q yeay Fr e Dujoooqn
172. eck if there is power open phase or faulty wiring 3 Check if power supply voltage side unbalance is within 6V There are problems on the condition of power source described above NO Reoccurrence of malfunction NO YES gt Correct any fault YES gt Check and correct each wiring It is possible to have external factor such as brownout and instantaneous blackout 149 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 7 55 Indoor Unit Malfunction of Moving Part of Electronic Expansion Valve Y1E e Remote Controller Display Applicable All indoor unit models Models Method of Malfunction Detection Malfunction Decision Conditions Supposed m Malfunction of moving part of electronic expansion valve Causes B Defect of indoor unit PC board B Defect of connecting cable Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The electronic expansion valve is connected to X7A of the indoor unit PC Normal when coil check 1 of the moving part of the electronic expansion valve is checked The connecting cable is short circuited or disconnected YES 150 After connecting turn the power supply off and then back on Replace the moving part of
173. econd Code No Filter Cleaning display 0 15 29 mcc play No display Test Operation 93 Field Setting Urban Multi ML5 Mini UM Heat Pump 5 Airflow Adjustment AUTO External Static Pressure Settings Make settings in either method a or method b as explained below a Use the airflow auto adjustment function to make settings Airflow auto adjustment The volume of blow off air is automatically adjusted to the rated quantity b Select External Static Pressure with Remote Controller Check that 01 OFF is set for the SECOND CODE NO in MODE NO 21 for airflow adjustment on an indoor unit basis in Table 4 The SECOND CODE NO is set to 01 OFF at factory set Change the SECOND CODE NO as shown in Table according to the external static pressure of the duct to be connected Mode No Airflow adjustment 7 6 Optional Output Switching Using this setting operation output signal and abnormal output signal can be provided Output signal is output between terminals K1 and K2 of customized wiring adapter an optional accessory First Code No Second Code Remarks Indoor unit thermostat EN E signal is provided 2 22 o linked with Start Stop of remote oa is provided case of Malfunction Display appears on the remote controller output 1 7 External ON OFF input This input is used for ON OFF operation and Protection device input f
174. ection Test Operation button for more than 4 seconds Service data can be obtained Malfunciton code history Temperature data of various sections Service settings can be made Forced fan ON Air flow direction volume setting Press Inspection Test Operation button once Indoor unit settings can be made Filter sign time Air flow direction Others Local setting mode Service mode Depress Inspection Test Operation button for more than 4 seconds Press Inspection Test Operation button once Or after 30 minutes Press Inspection Test Operation button once After 10 seconds Following codes can be checked Malfunction codes Indoor model code Outdoor model code operation Thermostat is forcibly turned on mode Press Inspection Test Operation button once 0815 128 Troubleshooting Panasonic Troubleshooting by Remote Controller 2 2 Self diagnosis by Wired Remote Controller Explanation If operation stops due to malfunction the remote controller s operation LED blinks and malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malfunction caused operation to stop See page 136 for malfunction code and malfunction contents Operation LED ON OFF button Display of indoor unit for
175. ed when replacing it with supplementary PC board Install correct capacity setting adaptor gt After establishing transmission for indoor and outdoor diagnose the operation again Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 14 55 Indoor Unit Malfunction of Thermistor R1T for Suction Air Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting gt All indoor unit models Malfunction detection is carried out by temperature detected by suction air temperature thermistor When the suction air temperature thermistor becomes disconnected or shorted while the unit is running Defect of indoor unit thermistor R1T for air inlet Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution Connector is connected to X13A of the indoor unit C board Connect the thermistor and turn on again Resistance is normal when measured after disconnecting the thermistor R1T from the indoor unit PC board 7 2kQ 112kQ N 2 Replace the thermistor 1 Replace the indoor unit PC board V2786 Refer to thermistor resistance temperature characteristics table on P251 159 Troub
176. efrigerant cannot be charged until field wiring has been completed Refrigerant may only be charged after performing the leak test and the vacuum drying see above When charging a system care shall be taken that its maximum permissible charge is never exceeded in view of the danger of liquid hammer Charging with an unsuitable substance may cause explosions and accidents so always ensure that the appropriate refrigerant R 410A is charged Refrigerant containers shall be opened slowly Always use protective gloves and protect your eyes when charging refrigerant When performing service on the unit requiring the refrigerant system to be opened refrigerant must be evacuated according to local regulations Do not use the automatic refrigerant charging function while working on the indoor units When using the automatic refrigerant charging function the indoor units operate automatically as well as the outdoor unit When the power is on please close the front panel when leaving the unit A Outdoor unit Gas line stop valve Liquid line stop valve Stop valve service port Indoor unit Indoor unit Nitrogen Measuring Vacuum Charge hose instrument pomp Fig 6 Test Operation 75 Test Operation Urban Multi ML5 Mini UM Heat Pump To avoid compressor breakdown Do not charge the refrigerant more than the specified amount This outdoor unit is factory charged w
177. encies between 36 Hz and 195 Hz by using A M1C Inverter compressor INV the inverter 31 steps M1F Since the system is of air heat exchanging type the fan is operated at 8 step rotation M2F speed by using the inverter Electronic expansion valve While in heating operation control is applied to keep the outlet superheated degree Main EV1 of air heat exchanger constant Electronic expansion valve control is applied to keep the outlet superheated degree of subcooling heat Subcool EV3 exchanger constant Solenoid valve Hot gas SVP Used to prevent the low pressure from transient falling SvUL valve Unload circuit Used to the unloading operation of compressor Used to switch the operation mode between cooling and heating S1NPH High pressure sensor Used to detect high pressure S1NPL Used to detect low pressure compressor operation This valve opens at a pressure of 4 0 MPa for prevention of pressure increase thus T 22 resulting no damage of functional parts due to the increase of pressure ge pP transportation or storage Thermistor Outdoor air Used to detect outdoor temperature correct discharge pipe temperature and others 2 Thermistor INV discharge used to detect discharge pipe temperature make the temperature protection control of pipe Tdi compressor and others R3T Thermistor used to detect suction pipe temperature keep the suction superh
178. er the voltage of X6A or X29A of the indoor unit PC board is 220 240 VAC 50 Hz 220 VAC 60 Hz when turned on again within 30 seconds of turning on again NO NO Replace indoor unit PC board YES The connecting cable YES has no continuity Replace the power supply connecting cable NO When the air flow direction flap s cam mechanism is disconnectec from the swing motor operation is normal when turned on again NO Replace swing motor YES Take the cam mechanism apart reassemble and turn on again V2780 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 6 Abnormal Power Supply Voltage Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting nm lt a 5 40 125 Detect malfunction checking the input voltage of fan motor When the input voltage of fan motor is 150V and below or 386V and above The possible causes are Power supply voltage malfunction Connection defect on signal line Wiring defect Instantaneous blackout others Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the condition of the power source 1 Check if power supply voltage is 220V 240V 10 2 Ch
179. ermistor of the radiation fin When the temperature of the inverter radiation fin increases above 83 C B Actuation of fin thermal Actuates above 83 C B Defect of inverter PC board A2P Defect of fin thermistor AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The radiator fin temperature is supposed to have risen to 84 C or more YES Faulty heat radiation of power unit e Air suction opening blocked e Dirty radiator fin e High outdoor temperature connector X111A of the fin thermistor properly connected to the outdoor C board Properly connect Turn ON the power supply and then press the remote controller check button once Is the malfunction code displayed on the remote controller To P4 troubleshooting Does the malfunction code recur when the unit starts operation Replace the inverter PC board assy A2P as well Continue operation 183 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 36 5 Outdoor Unit Inverter Compressor Abnormal Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 184 gt 4 U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from current flowing in th
180. ermostat OFF unit Function 55 Special Control Urban Multi ML5 Mini UM Heat Pump 3 3 Defrosting Operation The defrost operation is performed to solve frost on the outdoor unit heat exchanger when heating and the heating capacity is recovered Conditions to start The defrost operation is started referring following conditions Outdoor heat exchanger heat transfer co efficiency B Temperature of heat exchange Tb Timer 2 hours at the minimum In addition outdoor heat exchange co efficiency is derived from Tc Te and the compressor load Outdoor unit actuator a 4 avon Defrost operation Post Defrost operation 2 step increase from Compressor Upper limit control 140 Hz Full load Po MPa every 20 sec ae unit fan STEP8 STEP8 Four way valve way valve EVI electronic expansion valve cid 480 pls 55 pls Subcooling electronic expansion Hot gas bypass valve SVP e 15 min 160 Ending conditions 2 min or 0 gt 11 or _ From the preparing operation to the defrost operation and from the defrost operation to the operation after defrost the compressor stops for 1 minute to reduce noise on changing of the four way valve Indoor unit actuator Heating oil return operation Fan 56 Function Panasonic SS peal Contr 3 4 Pump down Residual Operation When activating compressor if the liquid refrigerant remains in the heat exchanger the l
181. es are net including a deduction for cooling an addition for heating for indoor fan motor heat The sound pressure values are mentioned for a unit installed with rear suction 18 o Se Panasonic Specifications Ceiling Mounted Built in Type pw 70 Power input Cooing Non painted Galvanised steel 354 356 cere 300 800 800 800 800 mensions mm E ange Fin Symmetric waffle louvre Hydrophilic Sirocco fan 2000 0 23 _ Heating eating neris 90 s co an Pa O static iid 1 7 Fan Di8HeABIVi __SDIBHBAHTVi 3DIBHeAHiVi SDIBHEAGIVI Motor d Direct drive cooing _ Flare connection _ Piping Flare connection Both liquid and gas pipes O zoe 0 zoe zo zoo White 1079105 DrainupHeight mm 1 89 Refrigerant control Temperature control Microprocessor thermostat for cooling and heating Safety devices PC board fuse Drain pump fuse Fan motor thermal protector Metal clamp for drain hose Paper pattern for installation Drain hose Insulation for fitting Washer for hanger bracket Screws for duct flanges Screws for fixing the paper pattern for installation Fuse Installation
182. eshooting by Indication on the Remote Controller Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is power supply NO 220 240V provided YES The float Switch is connected to X8A or X15A of the indoor unit PC board Provide 220 240V power supply A short circuit connector is connected to gt Connect either a short circuit connector or float switch and turn on again switch contact is forming a short circuit continuity check with X8A or X15A disconnected Becomes normal when X8A or X15A of the indoor unit PC board is short circuited NO gt Defect of indoor unit PC board NO YES Loose connection of connector NO NO The float switch Water builds u functions normally in the drain pan YES YES Replace float switch Modify the float switch s connection and turn on again The drain pump 15 connected to X25A or terminals 1 and Y2 of the NO Connect the drain pump and turn on again The drain pump works when the power supply is reset for the indoor unit NO YES Check the drain piping for clogging or upward slope etc he voltage of terminals 1 and Y2 or X25A is 220 240 V within Sminutes of resetting the power supply NO Replace indoor unit PC board YES Replace the drain pump or chec
183. eshooting by Indication on the Remote Controller Outdoor Unit Inverter Current Abnormal gt 1 U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected by current flowing in the power transistor When overload in the compressor is detected Compressor overload Compressor coil disconnected Defect of outdoor unit PC board A2P Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Output current check The secondary current of the inverter is higher than 13 1A 260 sec for each phase Compressor overload Inspection of the compressor and refrigerant system is required Compressor inspection The compressor s coil is disconnected YES Replace the compressor Disconnect the the connection between the compressor and inverter Make the power transistor check mode setting ON by service mode Inverter output voltage check Inverter output voltage is not balanced Normal if within 5V Must be measured when frequency is stable NO Replace the inverter PC board assy A2P YES After turning on again 2 blinks again YES NO Reset and restart Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor V3184 185 Troubleshooting by Indication on the Remote Controller Urban Multi ML5
184. ethod of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 168 gt a U 4 6ML5DPQ U 4 6ML5XPQ Urban Multi ML5 Mini UM Heat Pump Inverter PC board takes the position signal from UVW line connected between the inverter and compressor and the malfunction is detected when any abnormality is observed in the phase current waveform This malfunction will be output when the inverter compressor motor does not start up even in forced startup mode Compressor lock High differential pressure 0 5MPa or more Incorrect UVW wiring Faulty inverter PC board Stop valve is left in closed Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the installation conditions Is the stop valve open YES ls the UVW wiring 39 normal YES Is high differential pressure starting 0 5MPa or more YES whether compressor is YES short circuited or Are inverter output voltages the same for 3 phases NO Does low o high pressure vary even instantaneously when restarting compressor NO Open the stop valve gt Connect correctly gt Remedy the cause gt Replace the compressor gt Replace the inverter PC board Assy A2P Replace the compressor V2793 Troubleshooting Troubleshooting by Indication on th
185. f 20 sec Fan Steps 52 Function Panasonic Special Control 3 Special Control 3 1 Startup Control This control is used to equalize the pressure in the front and back of the compressor prior to the startup of the compressor thus reducing startup loads Furthermore the inverter is turned ON to charge the capacitor In addition to avoid stresses to the compressor due to oil return or else after the startup the following control is made and the position of the four way valve is also determined To position the four way valve the master and slave units simultaneously start up 3 1 1 Startup Control in Cooling Operation Thermostat ON Pressure equalization control Startup control prior to startup 1 STEP2 57 Hz Unload Compressor 0 Hz 57 Hz Unload 2 steps 20 sec until Pc Pe gt 0 39MPa is achieved Ta lt 20 C OFF 1 step 15 sec when Pc gt 2 16MPa Outdoor unit fan STEP7 gt 20 STEP4 1 step 15 sec when lt 1 77 Main electronic expansion Subcooling electronic Hot gas bypass valve T e Pc Pe 0 3MPa e A lapse of 130 sec Ending conditions OR sA 1395500 19 5 min lapse of 10 sec OR Pc Pes0 39MPa 3 1 2 Startup Control in Heating Operation Thermostat ON Pressure equalization control startup control prior to startup 1 STEP2 57 Hz Unload Compressor 0 Hz 57 Hz Unload 2 steps 20 sec until Pc Pe gt 0 39MPa is achieved From starting 1 min STEP 7 Out
186. failure Faulty high pressure sensor 164 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check for the points shown below D Is the stop valve open 2 Is the HPS connector properly connected to the main PC board 3 Does the high pressure switch have continuity Are the three points above OK iiS Rectify defective points if any YES Mount a pressure gauge on the high pressure service port Connect the Service Checker Reset the operation using the remote controller and then restart the operation Does the stop Is the HPS due to malfunction E3 operating value normal Replace the HPS recur 4 0 Characteristics of the high NO Replace the high pressure sensor pressure sensor normal YES pressure detected with NO the PC board normal Replace the main PC board YES high pressure sensor is normal and the pressure detected with the PC board is also normal high pressure has really become high Refer to information on P 218 remove the causes by 1 which the high pressure has become high 1 Make a comparison between the voltage of the pressure sensor 4 and that read by the pressure gauge As to the voltage of the pressure sensor make
187. for Heat R3T ST8605 5 8 L1000 Thermistors Exchanger High Temp 20kQ 25 C Thermistor Heat ST8602A 5 6 L1000 Exchanger 20kQ 25 C Float Switch FS 0211B h Others Thermal Fuse Parts Name Symbol 20 M3 5 251 3 5 321 3 S 40LM3 5 501 3 S 63LM3 S 80LM3 Remark HPQ HPQ HPQ HPQ HPQ HPQ HPQ Wired Remote Controller Wireless Remote CZ 01RWL12P Controller AC 220 240V 50Hz Fan Motor 1610W 1615W 1620W 1030W 1950W 1085W Motors 5 Thermal protector 135 C OFF Thermal Fuse 152 00 Fuse 152 C Thermal Fuse 152 87 C ON AC220 240V 50Hz AC220V 60Hz Drain Pump MiP PLD 12230DM Thermal Fuse 145 C Thermistor Suction Air Thermistors EE Thermistor for Heat R3T ST8605 6 8 11250 Exchanger High Temp 20kQ 25 Thermistor Heat ST8602A 5 6 L1000 Exchanger 20kQ 25 Float Switch FS 0211B 32 List of Electrical and Functional Parts Symbol S 20YM3 S 25YM3 S 32YM3 S 40YM3 s 50YM3 Remark HPQ HPQ HPQ HPQ HPQ Wired Remote Controller Wireless Remote SER Controller CZ 01RWY12P 220 240V 50Hz Fan Motor 1055W Thermal Fuse OFF 1307 ON 80220 itor f 1 4 0u 400VA 220 240 50Hz Drain Pump PLD 12230DM Thermal Fuse 145 C Pa E Thermistor Suction Air gt Thermistor for Heat R3T 518605 3 8 L630 Exchanger Hoh Temp 20
188. ften as the master unit used most often as the master unit Press the operation mode selector button in the remote Press the operation selector mode button in the remote controller of the indoor unit selected as the master unit controller of the indoor unit selected as the master unit A that remote controller CHANGEOVER UNDER oeep sound is emitted and the timer lamp turns off in all CONTROL disappears That remote controller will control indoor units changeover of the cooling heating operation mode That indoor unit will control changeover of the cooling In other remote controllers CHANGEOVER UNDER heating operation mode CONTROL lights For the details refer to the installation manual supplied together with the indoor unit Test Operation 113 Field Setting Urban Multi ML5 Mini Heat Pump Set Cool Heat Separately for Each Outdoor Unit System by Cool Heat Switching Remote Controller 114 lt does not matter whether or not there is outdoor outdoor unit wiring Set outdoor unit PC board DS1 1 to OUT factory set Set cool heat switching to IND individual for Setting mode 1 factory set MASTER SLAVE C H select remote controller Remote controller Remote controller V3059 Test Operation Panasonic Field Setting 3 2 3 Setting of Low Noise Operation and Demand Operation Setting of Low Noise Operation
189. function of Transmission between Inverter and Control PC Board Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting p erm U 4 6ML5DPQ U 4 6ML5XPQ Check the communication state between inverter PC board and control PC board by micro computer When the correct communication is not conducted in certain period m Malfunction of connection between the inverter microcomputer and outdoor control microcomputer Defect of outdoor unit PC board A1P m External factor Noise etc Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Was the inverter PC board or the _YES control PC board Are the inverter PC board and the control PC board used in combination of types listed in Table 1 YES Correct the combination following Table 1 and then restart operation Connect a connecting wire and control PC board then restart operation securely connected YES Are there any broken wires in the connectors of the inverter PC board and the control PC YES Repair the broken wires and then restart operation Replace the inverter PC board A2P or the control PC board A1P Table 1 Combination of PC boards ype of control Type of inverter PC board PC board U 4ML5XPQ 064
190. g gt JALLA 1015124 9 13bueu2xa 1094 8 21U04129 3 9414 3 qnoq 62 101 24 9 2110112914 c Je j A a 546 ins can Jo a ant BG J JM X nes Se ceo n Vy an 0 5 b 30052628 41 Refrigerant Circuit Refrigerant Circuit Urban Multi ML5 Mini UM Heat Pump 0 4 5 6ML5DPQ No in refrigerant system Symbol Name Major Function diagram Inverter compressor is operated on frequencies between 36 Hz and 195 Hz by using A Inverter compressor INV the inverter 31 steps M1F inverertan Since the system is of air heat exchanging type the fan is operated at 8 step rotation M2F speed by using the inverter E Electronic expansion valve While in heating operation control is applied to keep the outlet superheated degree Main EV1 of air heat exchanger constant expansion valve control is applied to keep the outlet superheated degree of subcooling heat Subcool EV3 exchanger constant me valve Hot gas SVP Used to prevent the low pressure from transient falling SvUL valve Unload circuit Used to the unloading operation of compressor M YIS Fourwayvalve Used to switch the operation mode between cooling and heating ON S1NPH High pressure
191. gnal transmission between indoor unit and remote controller main and sub is normal Normal transmission does not continue for specified period Malfunction of indoor unit remote controller transmission Connection of two main remote controllers when using 2 remote controllers Defect of indoor unit PC board Defect of remote controller PC board Malfunction of transmission caused by noise AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred SS1 of both remote controllers is set to MAIN Using 2 remote controllers control YES Set one remote controller to SUB turn the power supply off once and then back on Operation All indoor returns to normal when PC board microcomputer Replace indoor unit PC nitore Dine the power is turned off board momentarily There is possibility of malfunction caused by noise Check the surrounding area and turn on again Multi core cableis used for the indoor unit remote controller transmission wiring Switch to double core independent cable replacement Defect of remote controller PC board or indoor unit PC board Replace whichever is defective V2823 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 46 uc Malfunction of Transmission between Main and Sub Remote Controllers i
192. ient the unit may malfunction Turn ON the power of the indoor unit and the outdoor unit Make sure to completely open the stop valve on the gas side and the stop valve on the liquid side Connect the refrigerant charge hose to the service port for additionally charging the refrigerant In the stopped status set to ON the refrigerant additional charging operation in H1P Turn on The operation is automatically started The LED indicator H2P flickers and Test run and Under centralized control are displayed in the remote controller After charging the specified quantity of refrigerant press the RETURN button BS3 to stop the operation The operation is automatically stopped within 30 minutes If charging is not completed within 30 minutes set and perform the refrigerant additional charging operation again If the refrigerant additional charging operation is stopped soon the refrigerant may be overcharged Never charge extra refrigerant Disconnect the refrigerant charge hose Service port for adding refrigerant JI N P 119 Field Setting Urban Multi ML5 Mini UM Heat Pump 3 2 5 Setting of Refrigerant Recovery Mode When carrying out the refrigerant collection on site fully open the respective expansion valve of indoor and outdoor units All indoor and outdoor unit s operation are prohibited Operat
193. igerants R 22 R 407C Furthermore the refrigerating machine oil has been changed from Suniso oil to Ether oil and if oil mixing is occurred sludge results in the refrigerants and causes other problems Therefore gauge manifolds and charge hoses that are used with a previous refrigerant R 22 R 407C can not be used for products that use new refrigerants Be sure to use dedicated tools and devices Tool compatibility Compatibility HCFC Reasons for change R 410A R 407C Do not use the same tools for R 22 Gauge manifold x and R 410A Charge hose e Thread specification differs for R 410A and R 407C Charging cylinder X Weighting instrument used for HFCs Gas detector X The same tool be used for HFCs Vacuum pump To use existing pump for HFCs pump with reverse flow vacuum pump adaptor must be preventive function installed Weghingimsrmen Charge mouthpiece Seal material is different between R 22 and HFCs e Thread specification is different between R 410A and others ool Clutch 0 ForR HOA gauge is necessary Tomwenh O 1 2 JS Ppeepede oo Ppebede oono Due to refrigerating machine oil change No Suniso oil be used Refrigerant recovery e Only 019 1 is changed to 1 2H material while the previous material is O As for the charge mouthpie
194. indoor fan motor heat Heat Exchanger Fan Liquid OD Standard Accessories Specifications 21 Specifications Urban Multi ML5 Mini UM Heat Pump Wall Mounted Type S2OKNGHPR SGOKIGHPR Nominal Coating 7 0 Capaciy 09 TET 0056 Nomina 0060 Casing Colour white 3 0Y8 5 0 5 Dimensions Unit ikai Exchanger 7 3 L4 Lu cm CE Low mmn 4s so 58 o wo mo ut high RATOA Cooling Pressure low da 2 0 90 290 340 390 90 Flare connection 64 64 4 64 65 9 Nominal cooling capacities are on indoor 27 CDB 19 lt outdoor 5 equivalent refrigerant piping 5m horizontal Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 5m horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Liquid OD 22 Specifications Floor Standing Type Nominal Casing Colour Dimensions Unit Weight _ se Re ss ECC nich mm um Area m 0 159 0 159 0 200 0 200 0 282 0 282 a
195. internal mode number in parentheses 52 The figure of the ceiling height is for the all round outlet For the settings for four direction part of corner closed off three direction and two direction outlets see the installation manual and technical guide supplied with the separately sold closure material kit 96 Test Operation 14 Air Flow Direction Setting Set the air flow direction of indoor units as given in the table below Set when optional air outlet blocking pad has been installed The second code No is factory set to 01 Setting Table F 4 direction air flow 13 23 T 3 direction air flow W 2 direction air flow 15 Operation of Downward Flow Flap Yes No Only the model DM3 has the function When only the front flow is used sets yes no of the swing flap operation of down flow Setting Table Mode No First Code No Second Code No Setting Down flow operation Yes 13 23 Down flow operation No 16 Setting of Air Flow Direction Adjustment Range Make the following air flow direction setting according to the respective purpose 52537 Setting Table First Code Second Code No 01 Upward Draft prevention 13 23 03 Downward Ceiling soiling prevention Some indoor unit models are not equipped with draft prevention upward function 17 Setting of the Static Pressure Selection for future model use Model No First Code No Second Code
196. ion When either the start condition 1 or the start condition 2 is established the operations shown below will be conducted Defrost ending or oil return ending Hot start ending conditions or Thermostat ON lapse of minutes On Tabor Hot start control Hot start in progress H L remote controller setting LL The fan is not OFF before initiating the hot start LL The fan is OFF before initiating the hot start OFF Remote controller Normal control setting Po Horizontal THs Temperature C detected with the gas thermistor TC High pressure equivalent saturated temperature 72 Function Panasonic Part 6 Test Operation 74 die Um mtm 74 1 2 Operation when Power is Turned On 85 2 Boara 86 Se i RT Tm 87 3 1 Field Setting from Remote Controller 87 3 2 Field Setting from Outdoor een ense tet 104 Test Operation 73 Test Operation Urban Multi ML5 Mini UM Heat Pump 1 Test Operation 1 1 Procedure and Outline Follow the following procedure to conduct the initial test operation after installation 1 1 1 Check Work Prior to Turn Power Supply On O Is the power supply three phase 380 415V 50Hz O Have you finished a ductwork to drain Have you det
197. ion mode installation gt Replace indoor PC board position is A1P YES Connect the connecter X70A and turn on the power again 7 m Log YES Malfunction breaks out again NO gt Replace PC board for fan A2P Connect it and operate lt is possible to have a cause such as instantaneous blackout 1 Pull out and insert the connecter once and check it is absolutely connected 2 Method to check transmission part of indoor PC board 1 Turn off the power and remove the connecter X70A of indoor PC board A1P 2 Short circuit X70A 3 After turning on the power check below numbers under local setting remote control Confirmation Setting position NO at the condition of setting switch No 21 on mode No 41 Determination 01 Normal Other than 01 Transmission defect on indoor PC board After confirmation turn off the power take off the short circuit and connect X70A back to original condition Troubleshooting 155 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 11 7 Indoor Unit Malfunction of Thermistor R2T for Heat Exchanger Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 156 711 Lo All indoor unit models Malfunction detection is carried out by temperature detected by heat exchanger thermistor When
198. ion procedure In Setting Mode 2 with units in stop mode set B Refrigerant Recovery Vacuuming mode to ON The respective expansion valve of indoor and outdoor units are fully opened TEST OPERATION and UNDER CENTRALIZED CONTROL are displayed on the remote controller and the indoor outdoor unit operation is prohibited After setting do not cancel Setting Mode 2 until completion of refrigerant recovery operation Collect the refrigerant using a refrigerant recovery unit See the operation manual attached to the refrigerant recovery unit for more detal Press Mode button BS1 once and reset Setting Mode 2 120 Test Operation Panasonic 3 2 6 Setting of Vacuuming Mode Field Setting In order to perform vacuuming operation at site fully open the expansion valves of indoor and outdoor units and turn on some solenoid valves Operating procedure In Setting Mode 2 with units in stop mode set Refrigerant Recovery Vacuuming mode to ON The respective expansion valve of indoor and outdoor units are fully opened TEST OPERATION and UNDER CENTRALIZED CONTROL are displayed on the remote controller and the indoor outdoor unit operation is prohibited After setting do not cancel Setting Mode 2 until completion of Vacuuming operation Use the vacuum pump to perform vacuuming operation Press Mode button BS1 once and reset Setting Mode 2 3 2 7 Check
199. ipe size from the following table Pipe size for direct connection to indoor unit must be the same as the If the overall equivalent piping length 90 m be sure to uum z connection size of indoor unit enlarge the pipe diameter of the gas side main piping If the Outdoor unit connection piping size c ameter STUNTMAN AES 2 i iauid ni Piping size recommended pipe size is not available stick to the original ae Liquid pipe ae hick pipe diameter which may result in a small capacity decrease Piping size outer diameter x minimum 15 9 1 0 9 5x0 8 Indoor capacity Gas side Outdoor unit thickness index Gas pipe Liquid pipe U 4 5ML5 215 9 019 1 capacity type Gas pipe Liquid pipe 20 25 32 40 50 812 7 0 8 26 4 0 8 0 6 5 019 1 022 2 15 9x1 0 63 80 100 125 15 9x1 0 9 5x0 8 19 1x1 0 Main pipe First refrigerant 19 1x1 0 Bm enlarge branch kit 022 2x1 0 29 5 0 8 How to calculate the additional refrigerant to be charged Example for refrigerant branch using refnet joint and refnet header Additional refrigerant to be charged R kg Total length m of liquid Total length m of liquid should be rounded of 010 1 Ko R b Dos 0 054 2 0 022 09 5 30 d 9 5x13m 9 06 4 10 6 4 10 b 9 5x10 m 06 4 10 h 06 4 20 26 4 9
200. iquid enters into the compressor and dilutes oil therein resulting in decrease of lubricity Therefore the pump down residual operation is performed to collect the refrigerant in the heat exchanger when the compressor is down 3 4 1 Pump down Residual Operation in Cooling Operation Subcooling electronic expansion valve 0 pls EV3 Hot gas bypass valve SVP OFF 3 4 2 Pump down Residual Operation in Heating Operation On Main electronic expansion valve EV1 Subcooling electronic expansion valve 0 pls EV3 Hot gas bypass valve SVP Function 57 Special Control Urban Multi ML5 Mini UM Heat Pump 3 5 Restart Standby Restart is stood by force to prevent frequent power on off and to equalize pressure in the refrigerant system Ta gt 30 C STEP4 Subcooling electronic expansion valve 0 pls EV3 i 58 Function Panasonic SS peal Contr 3 6 Stopping Operation Operation of the actuator when the system is down is cleared up 3 6 1 When System is in Stop Mode OFF OR Function 59 Protection Control Urban Multi ML5 Mini UM Heat Pump 4 Protection Control 4 1 High Pressure Protection Control This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of high pressure In cooling operation High pressure not limite
201. iquid pipe 1 3 Gas pipe ul 27 i Address data 4 Indoor unit address Temperature C 5 Outdoor unit address 6 HR Box unit address Address display 7 Zone control address 8 Cool heat group address Unit No Address type 9 Demand low noise address Address i Forced fan ON Manually turn the fan ON by each unit When you want to search for the unit No By selecting the unit No with the button you can turn the fan of each indoor unit on forced ON individually Individual setting Set the fan speed and air flow direction by each unit Select the unit No with the time mode button Set fan speed with the button Set the air flow direction with the button Fan speed 1 Low Air flow direction 3 High PO P4 010 Transfer unit No Select the unit No with the button Set the unit No after transfer with the u Unit No transfer Present unit No button Unit 1 uc 12 0 2 Unit No after transfer VEO11 134 Troubleshooting Panasonic Troubleshooting by Remote Controller 2 6 Remote Controller Self Diagnosis Function Troubleshooting The remote controller switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out If a malfunction occurs during operation the operation lamp malfunction code and display of malfunctioning unit No let you know the contents and location of th
202. it and indoor units Check that gas and liquid stop valves are closed Stop the compressor and charge the specified weight of refrigerant Test Operation Panasonic AN Test Operation Test Operation To avoid compressor breakdown Do not charge the refrigerant more than the specified amount If the total refrigerant cannot be charged while the outdoor unit is at a standstill it is possible to charge the refrigerant by operating the outdoor unit using the refrigerant charge function refer to Setting mode 2 on page 108 and follow Procedure 3 Charging while the outdoor unit is operating on page 81 Procedure 3 Charging while the outdoor unit is operating See the figure in How to connect the tank on page 77 1 Co Completely open the gas side stop valve and liquid side stop valve Valve A must be left fully closed Close the front panel and turn on the power to all indoor units and the outdoor unit Open valve A immediately after starting of the compressor Charge the additional refrigerant in its liquid state through the service port of the liquid line stop valve While the unit is at a standstill and under setting mode 2 refer to Checks before initial start up Setting mode 2 on page 108 set the required function A additional refrigerant charging operation to ON ON Then operation starts The blinking H2P led indicates test operation and the remote controller indicates TEST test operation and external
203. ith refrigerant and depending on pipe sizes and pipe lengths some systems require additional charging of refrigerant See How to calculate the additional refrigerant to be charged on page 249 Incase re charge is required refer to the nameplate of the unit The nameplate states the type of refrigerant and necessary amount Precautions when adding R 410A Be sure to charge the specified amount of refrigerant in liquid state to the liquid pipe oince this refrigerant is a mixed refrigerant adding it in gas form may cause the refrigerant composition to change preventing normal operation B Before charging check whether the refrigerant cylinder is equipped with a siphon tube or not Charge the liquid Charge the liquid refrigerant with the cylinder refrigerant with the cylinder in upright position in up side down position 1 1 4 1 Important information regarding the refrigerant used 76 This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do not vent gases into the atmosphere Refrigerant type R 410A GWP value 1975 1 GWP global warming potential Please fill in with indelible ink the factory refrigerant charge of the product B 2the additional refrigerant amount charged in the field and B 2 the total refrigerant charge on the refrigerant charge label supplied with the product The filled out label must be adhered in the proximity of the product charging port e g onto the in
204. k for dirt etc V2778 145 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 4 a Indoor Unit Fan Motor M1F Lock Overload Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 146 E All indoor unit models Detection by failure of signal for detecting number of turns to come from the fan motor When number of turns can t be detected even when output voltage to the fan is maximum Fan motor lock m Disconnected or faulty wiring between fan motor and PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred N Caution wiring from the fan motor securely connected to connectors on the indoor unit PC N T 2 gt Connect the wiring and turn on again between the indoor unit PC board and fan motor is disconnected YES Fix the wiring and turn on again NO YES Does the fan motor run Replace the indoor unit PC board NO Replace the fan motor V2779 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 5 5 Indoor Unit Malfunction of Swing Flap Motor M1S Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions
205. kQ 25 C Thermistor Heat ST8602A 3 06 L630 20kQ 25 C Float Switch FS 0211 Parts Symbol S 25DM3 S 32DM3 S 40DM3 S 63DM3 Hemark HPS HPS HPS HPS Wired Remote Controller Wireless Remote 220 240V 50Hz Fan Motor M1F 1015W 1020 1045W 4P Thermal Fuse 146 C Thermal protector C OFF 105 C Motors Thermistors 220 240V 50 Drain Pump PLD 12200DM Thermal Fuse 145 C vente Thermistor for Heat R3T ST8605 7 8 11600 20kQ 25 C Thermistor Heat ST8602A 7 6 L1600 Exchanger 20kQ 25 Float Switch FS 0211B Exchanger High Temp ST8601 13 04 L630 Thermistor Suction Air 20kQ 25 C Thermistors List of Electrical and Functional Parts 33 List of Electrical and Functional Parts Urban Multi ML5 Mini UM Heat Pump Model S 20NM3 5 25 3 Remark HPQ HPQ Wired Remote Controller CZ 02RT11P T Controller Wireless Remote ption AC 200 240V 50 60Hz Motors Fan Motor M1F 1010W4P Thermal protector 135 C OFF 87 C ON Thermistor for Heat ST8605 7 8 L 1600 Thermistors Exchanger High Temp 20kQ 25 C Thermistor Heat ST8602A 6 6 L 1250 20kQ 25 C Others Exchanger Thermistor Suction Air SOKO 55 p 34 List of Electrical and Functional Parts Model Parts Name Symbol 5 20 5 25 5 32 5 40 5 50 5 63 5 80 5 100 5 125 Remark FM3 FM3 FM3 FM3 FM3 FM3 FM3 FM3 FM3 HPQ HPQ HPQ HPQ HPQ HPQ HPQ
206. l In preparation or in check operation Setting of COOL HEAT selection e e By individual outdoor unit e In a batch of outdoor unit group with master unit a batch of outdoor unit group with slave unit Check the system for each condition through LED displays Refer to information in table on the right Low noise operating conditions e normal operation O low noise operation Pushing the RETURN BS3 button will bring the system to the initial state of Setting mode 1 Demand operating conditions V2763 e normal operation demand operation Test Operation 107 Field Setting Urban Multi ML5 Mini UM Heat Pump wu Setting item Cool heat unified Push and hold the MODE 1 Sets address for cool heat unified operation button for 5 seconds and set to Setting mode 2 2 Low noise demand Address for low noise demand operation address Used to conduct test operation without making changes 3 to the PCB and replacing the refrigerant after the 9 completion of maintenance 5 Indoor unit forced Allows forced operation of indoor unit fan while unit is fan H stopped H tap lt Selection of setting items gt Push the SET BS2 button and set saa Allows forced operation of indoor unit B LED 1 8 Te setting Target evaporation temperature for cooling 9 Tc setting Target condensation temperature for heating
207. lain the cautions for operating the product to the customer 1 1 1 Caution in Repair Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If itis necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrigerant gas The refrigerant gas can cause frostbite When disconnecting the suction or discharge pipe of the compressor at the welded section release the refrigerant gas completely at a well ventilated place first If there is a gas remaining inside the compressor the refrigerant gas or refrigerating machine oil discharges when the pipe is disconnected and it can cause injury If the refrigerant gas leaks during the repair work ventilate the area The refrigerant gas can generate toxic gases when it contacts flames The step up capacitor supplies high voltage electricity to the electrical components of the outdoor unit Be sure to discharge the capacitor completely before conducting repair work A charged capacitor can cause an electrical shock Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug Plugging or unplugging the power cable plug to o
208. led while in oil return mode in cooling operation Automatic control Normal operation Normal operation Clean the inside of the indoor unit Uneven temperature distribution due to heavy stain of the inside of the indoor unit Hot gas refrigerant flown in the indoor unit results to be vapor from the unit Normal operation Defrosted moisture turns to be vapor and comes out from the units Normal operation Troubleshooting Panasonic Symptom based Troubleshooting W Symptom Supposed Gauss The system produces sounds 12 Dust comes out lt Indoor unit gt Immediately after turning ON the power supply indoor unit produces ringing sounds lt Indoor and outdoor units gt Hissing sounds m continuously produced while in cooling or defrosting operation Indoor and outdoor units Hissing sounds are produced immediately after the startup or stop of the system or the startup or stop of defrosting operation Indoor unit Faint sounds are continuously produced while in cooling operation or after stopping the operation Indoor unit Creaking sounds are produced while in heating operation or after stopping the operation Indoor unit Sounds like trickling or the like are produced from indoor units in the stopped state Outdoor unit Pitch of operating sounds changes Dust comes out from the from the system system when it restarts after
209. lel YES interface cannot be used in combination Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously Is a parallel interface connected Disconnect the schedule YES timer s individual combined connector and reset the power supply for all optional controllers for centralized control simultaneously Is the schedule timer s individual combined connector connected Arrange so that the connector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the connector for setting master control from Reset the power supply for the master controller all optional controllers for connect to another optional centralized control controller for centralized simultaneously EMEN control and simultaneously If the malfunction is still not cleared reset all optional controllers for centralized control again The controller connected by the connector for setting master control when the malfunction is cleared is defective and must be replaced V2834 210 Troubleshooting 4 5 MM Address Duplication Improper Setting Remote Mi Controller Display Applicable Centralized remote controller Models Method of Malfunction Detection Malfunction Decision Conditions Supposed m Ad
210. leshooting by Indication on the Remote Controller 3 15 08 Urban Multi ML5 Mini UM Heat Pump Indoor Unit Malfunction of Thermistor for Discharge Air Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 160 gt gt 74 All indoor unit models Malfunction detection is carried out by temperature detected by discharge air temperature thermistor When the discharge air temperature thermistor becomes disconnected or shorted while the unit 1 running Defect of indoor unit thermistor for air outlet Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution Connector is connected to the indoor unit PC board Connect the thermistor and turn on again Resistance is normal when measured after disconnecting the thermistor from the indoor unit PC board 7 2kQ 112kQ Replace the thermistor Replace the indoor unit PC board V2786 Refer to thermistor resistance temperature characteristics table on P251 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 16 4 Unit Malfunction of Humidity Sensor System Remote Controller Display Applicable UM4 Model
211. lti ML5 Mini UM Heat Pump Wiring Diagrams 0 4 5 6ML5DPQ L6ScS0Q0 SLINA 90001 T T T 144 1424 N O43 lag 1424 He pA a pa Ce po D 3811 3NI1 LAN 3NI1 H3M d 3191 S3HIM C 3189 S3H M 4 31970 5381 3904 3904 3504 3411 4am0d 1504 31892 S3M M g 211 5 211 5 HILIMS H LIMS 7 1 f M 3N 1 NOISSIASNVHI INIT NOLSSIASNVHL 3811 NOISSINSNVHL 31890 5 41890 SdMIM C 118 2 S3MIM 4 Pr 3 1 NOISSINSNYHL 41870 S3HI M iH eN 2 14 IS 3514 HOLIMS N 1 LINN 4000110 1 1210129 9 pasug AG popladdd 99 SAW pue 11 9 924105 Jamod ajd i3inu 941 21111 JUaWd i Aba 941 JO 51515 02 91 5141 9 12999 1910510 1930914 1112412 11225 ue 592 05 JamOd 941 191449101 ued 1241 211 5 UleW 341 110180 6
212. lty hot gas solenoid valve lt Are the coil resistance and insulation normal lt ls the pressure value checked with the Service Checker Faulty control PCB 4 corresponding to the measurement of the pressure sensor Faulty valve coil Are the coil resistance and insulation normal Faulty valve body Faulty gas pipe lt Check for the thermistor resistance and connection thermistor of indoor unit Faulty liquid pipe thermistor Check for the thermistor resistance and connection of indoor unit lt ls the pressure value checked with the Service Checker corresponding to the measurement of the pressure sensor lt Are the coil resistance and insulation normal Faulty control PCB Faulty valve coil Faulty valve body Faulty low pressure sensor Are the electrical characteristics normal Faulty suction pipe thermistor Check for the thermistor resistance and connection Faulty control PCB Short circuit lt 15 the suction air temperature not less than 14 C Low ambient temperature ls the indoor temperature not less than 14 C 9 Faulty suction air thermistor of indoor unit lt 8 properly Are the thermistor resistance characteristics normal Low suction air temperature of outdoor unit Is the outdoor temperature not less than 15 C lt ls the connector properly connected Faulty outdoor temperature thermistor of outdoor unit Are the thermistor resistance characteristics normal
213. m co c coat D lt Confirmation of malfunction 1 Push the RETURN BS3 button once to display First digit of malfunction code Faulty sensor of subcool heat Faulty Tsh sensor short exchanger temperature Faulty sensor of discharge pressure Faulty Pc sensor short Faulty sensor of suction pressure Faulty Pe sensor short Push the SET BS2 button once to Detail Faulty Inverter PC board Faulty IPM display Second digit of malfunction description ce gt lt Confirmation of malfunction 2 gt c LIO Abnormal Current sensor offset code on next Abnormal IGBT page Faulty Current sensor Abnormal SP PAM over voltage Inverter radiation fin temperature rising Over heating of inverter radiation fin temperature DC output over current Inverter instantaneous over current lt Confirmation of malfunction 3 gt Electronic thermal Electronic thermal switch 1 Push the SET BS2 button once to display malfunction location Electronic thermal switch 2 Out of step Speed down after startup Lightening detection co Stall prevention Limit time Stall prevention Current increasing Stall prevention Faulty start up Abnormal wave form in startup Confirmation of malfunction 4 Out of step Push the SET BS2 button once to display master or slave 1 or slave 2 and malfunction location Transmission error between i
214. measurement of voltage at the connector and then convert it to pressure according to information on P 253 2 Make a comparison between the high pressure value checked with the Service Checker and the voltage of the pressure sensor see 1 8 Make measurement of voltage of the pressure sensor 5V Connector for high pressure sensor Red Micro controller A D input Make measurement of DC voltage between these wires 4 Troubleshooting 165 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 20 4 Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Outdoor Unit Actuation of Low Pressure Sensor gt a ens gt U 4 6ML5DPQ U 4 6ML5XPQ Abnormality is detected by the pressure value with the low pressure sensor Error is generated when the low pressure is dropped under specific pressure Operating pressure 0 07MPa Abnormal drop of low pressure Lower than 0 07MPa Defect of low pressure sensor Defect of outdoor unit PC board A1P Stop valve is not opened Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the stop NO valve open Open the stop valve YES 1 M
215. mission between inverter and control PC board High voltage of capacitor in main inverter circuit 188 System Low pressure drop due to refrigerant shortage or electronic expansion valve failure Reemephse opnphas 52 Power supply insuficient or instantaneous 191 a Ohekcpemfonismocometed 0 Mafuncionofansmissionbetweenindoorandoudoorunls 194 Us Malfunction of transmission between remote controller and indoor unit 196 U5 Failure of remote controller PC board or setting during control by remote 196 controller 07 o Malfunction of transmission between outdoor units ET U8 Malfunction of transmission between main and sub remote controllers 197 malfunction of sub remote controller Malfunction of transmission between indoor unit and outdoor unit in the same system Excessive number of indoor units ux Address duplication of central remote controller Malfunction of transmission between central remote controller and indoor LS unit UF Systemis not set yet 804 UH O9 Malfunction of system refrigerant system address undefined Central UE Malfunction of transmission between centralized remote controller and 206 indoor unit Controller i PC board defect Schedule 8 or Malfunction of transmission between optional controllers for centralized 208 Timer control oore Address duplication
216. n Decision Conditions Supposed Causes Troubleshooting 180 gt Ln U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from the pressure detected by the high pressure sensor When the high pressure sensor is short circuit or open circuit Defect of high pressure sensor Connection of low pressure sensor with wrong connection Defect of outdoor unit PC board Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The high pressure sensor is connected to X174 of outdoor unit PC board A1P Connect the high pressure sensor and turn on again relationship between the is normal see 2 when voltage is measured betwee X17A pins 1 and 3 of outdoor unit PC board A1P see 1 Replace outdoor unit PC board A1P Replace the high pressure sensor V2806 1 Voltage measurement point Outdoor unit PC board A1P gt 4 Red 5 GND 3 Black 2 2 Microcomputer 1 White T A D input 2 Measure DC voltage here V2807 2 Refer to Pressure Sensor pressure voltage characteristics table on P253 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 33 uit Outdoor Unit Malfunction of Low Pressure Sensor Remote Controller Display Applicable Models Method of Malfuncti
217. n 60 min standby the malfunction code L8 1 output Inverter fin temperature control Not limited 2 Eve C Tfin279 C eINV upper limit frequency max Hz Limited INV upper limit frequency 1 step down from current compressor frequency 10 sec Tfin279 C of frequency otatus quo Tfinz76 C continues for 3 min Without conditions INV upper limit frequency 1 step up from current compressor frequency Tfin284 C Fin temp standby When occurring 4 times within 60 min the malfunction code L4 is output Function 63 Other Control Urban Multi ML5 Mini UM Heat Pump 5 Other Control 9 1 Demand Operation In order to save the power consumption the capacity of outdoor unit is saved with control forcibly by using Demand 1 Setting To operate the unit with this mode additional setting of Continuous Demand Setting Demand 1 setting Setting Standard for upper limit of power consumption Demand 1 setting 1 Approx 6096 Demand 1 setting 2 factory setting Approx 7096 Demand 1 setting 3 Approx 8096 Other protection control functions have precedence over the above operation 5 2 Heating Operation Prohibition 64 Heating operation is prohibited above 24 CDB outdoor air temperature Function Panasonic Outline of Control Indoor Unit 6 Outline of Control Indoor Unit 6 1 Drain Pump Control 1 The drain pump is controlled by the ON OFF button
218. n or parts damage may be occurred Connector Of the thermistor for suction pipe 2 is connected to X12A of outdoor unit PC board A1P Connect the thermistor and turn on again Resistance is normal when measured after disconnecting the thermistor R3T R5T from the outdoor unit PC NO Replace the thermistor R3T R5T Replace outdoor unit PC board A1P V3073 Refer to thermistor resistance temperature characteristics table on P251 Troubleshooting Panasonic 3 29 Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting Troubleshooting by Indication on the Remote Controller Outdoor Unit Malfunction of Thermistor R6T 10 U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from the temperature detected by the heat exchanger thermistor When a short circuit or an open circuit in the heat exchange thermistor is detected Defect of thermistor R6T for outdoor unit heat exchanger Defect of outdoor unit PC board A1P Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Connector is connected to X13A of outdoor unit PC board A1P Connect the thermistor and turn on again Resistance is normal when measured after disconnecting the
219. nce H1P H2P H3P H4P H5P H6P H7P dh 2 4 2 Press BS4 TEST for 5 seconds The unit will start running H1P H2P H3P H4P H5P H6P H7P e If the led display below appears the automatic refrigerant charging restriction has been exceeded Additional refrigerant must be charged by calculating the additional refrigerant charging amount H2P H5P H6P H7P Description of error 2 s Inappropriate outdoor temperature or 2 H5P 7 Description of error Ln Inappropriate indoor temperature If the led display below appears check the indoor unit connection capacity H1P H2P H4P H5P H6P H7P Description of error d Inappropriate indoor unit connection capacity If the led display below appears the liquid and gas side stop valves may be closed H1P H2P H4P H5P H6P H7P Description of error gt Stop valve is closed Note you want to repeat the automatic refrigerant charging operation from step 4 1 fully open the liquid and gas side stop valves and press the BS1 MODE button once 4 3 When the led indication becomes as shown in the table below in about 15 to 30 minutes after start of operation open valve A at once to start charging of the refrigerant Immediately after starting charging of the refrigerant by opening valve A p
220. nd Level Cooling power nomna Sound Ee a ae Sound 3 5 3 3S9 NN Flare connection Liquid OD Diameter dci ___127 127 127 __ 127 47 2 connections 12 7 12 12 12 7 12 7 VP25 1D 250 0 32 Foamed polystyrene polyethylene Sound absorbing insulation Foamed Polyurethane Model CZ G6KPUI2P RALSO1O Hen Um Air Flow Rate Panel Installation and operation manual Drain hose Washer for hanging bracket Screws Sealing Pads Insulation for fitting Decoration Height Dimensions Standard Accessories Accessories Clamp for drain hose Installation guide Drain sealing pad The sound pressure values are mentioned for a unit installed with rear suction The sound power level is an absolute value indicating the power wich a sound source generates Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB Notes equivalent refrigerant piping 5m level difference Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 6 CWB equivalent refrigerant piping 5m horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Specifications 13 Specifications Urban Multi ML5 Mini UM Heat Pump Ceiling Mounted Cassette Type Round flow
221. ne or when pausing close the valve on the refrigerant tank immediately More refrigerant might be charged by any remaining pressure after the machine is stopped B The outdoor fan may keep rotating a little bit more but this does not indicate a malfunction Case 1 Charging complete H2P H5P H6P H7P Code remote controller DD OD OD 4 Charging of the refrigerant is complete Press BS1 MODE button once and go to step 5 Case 2 Recharging operation H2P H4P H5P H6P H7P Code on remote controller Press BS1 MODE button once and perform automatic refrigerant charging again starting from Step 4 1 Case 3 Charging interrupted H2P H5P H6P H7P Code remote controller e Something is preventing normal operation ls the gas side stop valve completely open Are the valve on the refrigerant tank and valve A open Check if the BS4 TEST button was pressed within 10 minutes after the valves were opened 5 the indoor unit air intake vent or outlet vent blocked After correcting the problem press BS1 MODE button once and perform automatic refrigerant charging again starting from step 4 1 79 Test Operation Urban Multi ML5 Mini Heat Pump Case 4 Failure Error code remote 2 H4P H5P H7P controller e o e See footnote An error in th
222. ne outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller Set cool heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by cool heat switching remote controller Set Cool Heat Separately for Each Outdoor Unit System by Indoor Unit Remote Controller lt does not matter whether or not there is outdoor outdoor unit wiring Set outdoor unit PC board DS1 1 to IN factory set Set cool heat switching to IND individual for Setting mode 1 factory set MASTER C H SELECT V3058 Remote Remote controller controller lt Set the master unit indoor unit having the right to select the cooling heating operation mode gt In the case of wired remote controllers In the case of wireless remote controllers e After the check operation CHANGEOVER UNDER After the check operation the timer lamp is flashing in all CONTROL is flashing all connected remote controllers connected indoor units Select an indoor unit to be used as the master unit in Select an indoor unit to be used as the master unit in accordance with the request from the customer accordance with the request from the customer It is recommended to select an indoor unit which will be It is recommended to select an indoor unit which will be used most o
223. ng 92 C 154 S 156 QR M 157 e UN 158 159 160 c 161 Centralized Control Group No Setting 100 Check for causes of drop in low pressure 219 Check for causes of rise in high pressure 218 CHECK ODeralOD sedes agat o ub 82 Check Operation not Executed 193 0 o 162 Compressor Control 50 Contents of Control Modes 102 Cool Heat Mode Switching 113 Cooling Operation Fan Control 52 D Defrosting Operation 56 Demand Operation 64 Detailed Explanation of Setting Modes 93 Discharge Pipe Protection Control 62 Display Under Host Computer Integrate Control Blinks Repeats Double Blink 217 Display Under Host Computer Integrate Control Blinks Repeats Single Blink 214 Drain Level above Limit 152 Dram Pump GOntrol 65 E 163 Ic m 164 ES
224. ng and office air conditioning needs We are confident that customers will be able to find the models that best suit their needs This service manual contains information regarding the servicing of UM ML5 series R 410A Heat Pump System July 2008 After Sales Service Division Introduction Urban Multi ML5 Mini UM Heat Pump Panasonic Part 1 General Information 1 Model Names of Indoor Outdoor 2 2 UNIS de ene RANG CS ies TETTE 4 General Information Model Names of Indoor Outdoor Units Urban Multi ML5 Mini Heat Pump 1 Model Names of Indoor Outdoor Units Indoor Units Type Model Name Power Supply Ceiling Mounted Cassette Type 25 32 50 63 Double Flow Ceiling Mounted Tae 20 25 32 40 50 63 Round Flow 600x600 Ceiling Mounted Cassette YM3 20 25 32 40 50 Type Mult Flow Ceiling Mounted Cassette Corner 32 Type Unit anal Ceiling Mounted Built In Type 20 25 40 50 63 100 seule Mounted gt sata Concealed Floor eee lE Note VE 1f 220 240V 50Hz 1f 220V 60Hz V1 1f 220 240V 50Hz V3 1f 230V 50Hz Outdoor Units Model Name Power Y1 3 380 415 2 V1 10 220 240V 50Hz 2 General Information
225. ng check operation may not have been carried out successfully V2830 d Note Wiring check operation may not be successful if carried out after the outdoor unit has been off 204 for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 52 un Malfunction of System Refrigerant System Address Undefined Id N Remote Controller Display Applicable All indoor unit models Models U 4 6ML5DPQ U 4 6ML5XPQ Method of Malfunction Detection Malfunction Decision Conditions Supposed improper connection of transmission wiring between outdoor unit and outdoor unit outside Causes control adaptor B Defect of indoor unit PC board Defect of outdoor unit PC board A1P Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred Is electricity being introduce for the first time after installationor after an indoor or outdoor unit PC Does a malfunction occur even after 12 minutes elapses from the time when electricity is introduced to indoor and outdoor units Normal 5 indoor outdoor and Troubleshooting NO TM outdoor outdoor unit After fixing incorrect wiring transmission wiring push
226. nic Expansion Valve Control on P 72 218 C SDK04009 Troubleshooting Panasonic Troubleshooting by Indication on the Unified ON OFF Controller CHECK 2 Check for causes of drop in low pressure Referring to the Fault Tree Analysis FTA shown below probe the faulty points In cooling See 1 Faulty low pressure control In both cooling and heating Abnormally low See 2 low pressure In cooling Low evaporating If the indoor unit temperature electronic expansion valve is throttled too much See 3 Faulty electronic expansion valve control In heating If the outdoor unit electronic expansion valve excessively throttled See 4 In cooling Low suction air temperature of the evaporator In heating Less circulation quantity of refrigerant Degradation in condensing capacity Faulty compressor capacity control Faulty low pressure protection control Faulty indoor unit electronic expansion valve Faulty control Faulty outdoor unit electronic expansion valve Faulty control Low suction air temperature of indoor unit Faulty low pressure sensor the electrical characteristics normal lt ls the pressure value checked with the Service Checker Faulty control corresponding to the measurement of the pressure sensor Faulty low pressure sensor Are the electrical characteristics normal Fau
227. nit Failure of Combination Between Indoor unit PC Board and Fan PC 3 14 5 Indoor Unit Malfunction of Thermistor R1T for Suction Air 3 15 Indoor Unit Malfunction of Thermistor for Discharge Air 3 16 72 Indoor Unit Malfunction of Humidity Sensor System 3 17 Indoor Unit Malfunction of Thermostat Sensor Hemno CODOS 3 18 Outdoor Unit PC Board Defect 3 19 22 Outdoor Unit Actuation of High Pressure Switch 3 20 2 Outdoor Unit Actuation of Low Pressure 3 21 5 Inverter Compressor Motor 3 22 Malfunction of Outdoor Unit Fan Motor 3 23 5 Outdoor Unit Malfunction of Moving Part of Electronic Expansion Valve TTE 3 24 75 Outdoor Unit Abnormal Discharge Pipe Temperature 3 25 5 Outdoor Unit Refrigerant 3 26 45 Outdoor Unit Malfunction of Thermistor R1T for Outdoor Air 3 27 43 Outdoor Unit Malfunction of Discharge Pipe Thermistor R2T 3 28 us Outdoor Unit Malfunction of Thermistor RST R5T for Suction Pipe
228. ns Urban Multi ML5 Mini UM Heat Pump Mounted Built in Type RE HU Pew Ow 3m 4e so em Power input omw ox oms Nominal Heating w 000 004 017 0123 Non painted Material Galvanised steel Height LINE 354 354 354 354 354 N 892 Depth 936 936 936 936 936 mm 300 Unit wan mm 50 X 850 79 700 Depth mm 800 800 800 800 800 w 3 9 3 29 39 Packed Unt Required Celing Void 350 Length a eS isi Imm 300 300 300 450 450 5 25 1 54 1 4 1 3 Dimensions s NrofPasses ee Heat 0 Exchanger Nat Sages Em imet CEN Fin type Symmetric waffle louvre Fn Hydrophilic Sirocco fan Ger c wo cp ca qe Xo m Cin mmn 50 so so na eo m ow 89 39 TN 9 50 11 50 15 00 mmn 650 65 70 90 no External static 15 98 1l 4 low Pa fe cep ndn ede Model D18H3AA1 V1 D18H3AA1V1 D18H3AA1V1 D18H2AC1V1
229. nt is displayed Push the BS2 SET button several times and match the LED display with the setting content as shown on next page you want Push the BS3 RETURN button two times Returns to Push the BS1 MODE button one time Returns to the setting mode 1 and turns H1P off 117 Field Setting Urban Multi ML5 Mini UM Heat Pump e OFF Blink Setting Setting No indication Setting No indication Setting Setting contents indication Initial setting contents contents HIP Factory low noise Factory setting setting Night time low noise start setting PM 10 00 Factory setting Night time low noise end setting Factory setting Capacity Low noise precedence precedence Factory setting Capacity precedence 60 of rated power consumption 70 of rated power consumption Factory setting 80 of rated power consumption OFF Factory setting Setting mode indication section Setting No indication section Set contents indication section 118 Test Operation Panasonic Field Setting 3 2 4 Setting of Refrigerant Additional Charging Operation Test Operation When the outdoor unit is stopped and the entire quantity of refrigerant cannot be charged from the stop valve on the liquid side make sure to charge the remaining quantity of refrigerant using this procedure If the refrigerant quantity is insuffic
230. nt piping 5m level difference Om Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 5m level difference Om Sound power level is an absolute value that a sound source generates 1 power level is an absolute value that a sound source Sound power level is an absolute value that a sound source generates 1 Sound pressure level is a relative value depending on the distance and acoustic environment For more details please refer to sound level drawings Sound values are measured in semi anechoic room values L Sound values are measured semi anechoic room measured in a semi anechoic room Piping Specifications 7 Specifications Urban Multi ML5 Mini UM Heat Pump Heat pump 50Hz lt U 4 6ML5DPQ gt 2 57 Wis Painted galvanised steel Height _ 1 524 _ m Dimensions Height aa Depth mm 30 290 P Packed Unit kg 8080 10 Carton wood EPS Weight g PB warws gt Fem mm 2 2 LRL mm 8 _____ Dimensions Heat Exchanger m 1 131 Tube type Hi XSS 8 mom type Non symmetric sas louvre
231. nverter Inverter transmission error and outdoor unit Push the RETURN 853 and switches to the initial status of Monitor mode Push the MODE BS1 button and returns to Setting mode 1 138 Troubleshooting Panasonic 7 Troubleshooting by Remote Controller O ON e OFF ura oj jejo of l REER AE LC OOX a Display of contents of Display of contents of Display 1 of Display 2 of malfunction first digit malfunction second digit malfunction in detail malfunction in detail Master e Slave1 _ _ Slave2 jSystem Troubleshooting 139 Troubleshooting by Remote Controller Urban Multi ML5 Mini UM Heat Pump lt Monitor mode gt Contents of malfunction Malfunction To enter the monitor mode push the code MODE BS1 button when in Open phase Power supply imbalance Imbalance of inverter power supply Setting mode 1 voltage Faulty temperature sensor of inverter Faulty thermistor of inverter fin radiation fin Abnormal power supply voltage lt Selection of setting item gt Push the SET BS2 button and set d 1 4 0 2 the LED display to a setting item No implementation of test run 3 4 9 F Transmission error of other system Indoor unit system abnormal in other system or other indoor unit system Push the RETURN BS3 button E
232. on Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting Lu U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from pressure detected by low pressure sensor When the low pressure sensor is short circuit or open circuit B Defect of low pressure sensor B Connection of high pressure sensor with wrong connection B Defect of outdoor unit PC board N Caution pressure sensor is connected to X18A blue of outdoor unit PC board A1P Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Connect low pressure sensor property and restart system relationship between the 1 VL and low pressure is normal see 2 when voltage is measured between X18A pins 2 and 3 of outdoor unit PC board A1P see 1 YES gt Replace outdoor unit PC board A1P Replace the low pressure sensor V2808 1 Voltage measurement point Outdoor unit PC board A1P 5 MN GND Black 2 Microcomputer 2 White A D input 5 2 Measure voltage here V2809 2 Refer to Pressure Sensor pressure voltage characteristics table on P253 181 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 34 Outdoor Unit Malfunction of PC Board Remote Controller Display Applicable
233. on of Transmission between Optional Controllers for Centralized Control 208 4 4 MF Improper Combination of Optional Controllers for RR 209 4 5 Address Duplication Improper Setting 211 Troubleshooting by Indication on the Unified ON OFF Controller 212 5 1 Operation Lamp 212 5 2 Display Under Host Computer Integrate Control Blinks es SINK ERE T 214 5 3 Display Under Host Computer Integrate Control Blinks Repeats 217 Parto ApDendbDG isasnnnusuuwunuEENEwEME AER a RE nnde 1 222 IN OUO _ 222 Ineoor 224 2 6 227 21 OUr 227 22 229 eios ee one ae eee 231 SEG E TRUM 246 9 1 Option List of Controllers teorie abet ettet eto 246 3 2 Option List of Outdoor 248 4 Example of Connection 249 5 Thermistor Resistance Temperature Characteristics 251 D 253 7 Method of Replacing the Inverters Power Transistors Modules 254 Part 9 Precautions for New Refrigeran
234. ooting m 2 U 4 6ML5DPQ U 4 6ML5XPQ Excessive charging of refrigerant is detected by using the heat exchanging deicer temperature during a check operation When the amount of refrigerant which is calculated by using the heat exchanging deicer temperature during a check run exceeds the standard Refrigerant overcharge Misalignment of the thermistor for heat exchanger Defect of the thermistor for heat exchanger Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution Check the mounting condition of the temperature sensors of the heat exchanging deicer thermistor in the piping Are the above thermistor installed on pipes correctly NO Install thermistor correctly YES Remove the heat exchanging deicer thermister from the outdoor PC board and measure resistance with a tester Is the characteristic of the above thermistor normal NO Replace thermistor YES Refrigerant overcharged V2797 Refer to Thermistor Resistance Temperature Characteristics table on P251 173 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 26 5 Outdoor Unit Malfunction of Thermistor R1T for Outdoor Air Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Cau
235. ote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Urban Multi ML5 Mini UM Heat Pump System is not Set yet All models of indoor units U 4 6ML5DPQ U 4 6ML5XPQ On check operation the number of indoor units in terms of transmission is not corresponding to that of indoor units that have made changes in temperature The malfunction is determined as soon as the abnormality aforementioned is detected through checking the system for any erroneous connection of units on the check operation Improper connection of transmission wiring between indoor outdoor units and outdoor outdoor units Failure to execute check operation Defect of indoor unit PC board Stop valve is left in closed Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred N Caution Are the stop valves openned NO Open stop valve YES Is the check operation carried out Is indoor outdoor and outdoor outdoor unit transmission wiring normal YES Replace indoor unit PC board indoor outdoor and outdoor outdoor unit transmission wiring normal After fixing incorrect wiring push and hold the RESET button on the master outdoor unit PC board for 5 seconds YES The unit will not run for up to 12 minutes Wiri
236. ound fault ground leakage Faulty fan motor ground leakage 256 Appendix Panasonic Part 9 Precautions for New Refrigerant R 410A 1 Precautions for New Refrigerant R 410A 208 Tal IUUD NEN 258 1 2 Retrigerant Gyliniders 260 1 3 Service Tools Precautions for New Refrigerant R 410A 257 Precautions for New Refrigerant R 410A Urban Multi ML5 Mini UM Heat Pump 1 Precautions for New Refrigerant R 410A 1 1 Outline 1 1 1 About Refrigerant R 410A Characteristics of new refrigerant R 410A 1 Performance Almost the same performance as R 22 and R 407C 2 Pressure Working pressure is approx 1 4 times more than R 22 and R 407C 3 Refrigerant composition Few problems in composition control since it is a Quasi azeotropic mixture refrigerant DU HFC units Units using new refrigerants HCFC units Refrigerant name R 407C R 410A Non azeotropic mixture Quasi azeotropic mixture _ Composing of HFC32 125 and of HFC32 and JEC125 S ngle component substances HFC134a 1 1 refrigerant 3 2 MPa gauge pressure 4 0 MPa gauge pressure 2 75MPa gauge pressure 32 6 kgf cm 40 8 kgf cm 28 0 kgf cm Synthetic Ether Ozana tea 1 Non azeotropic mixture refrigerant mixture of two more refrigerants having different boiling points 2 Quasi azeotropic mixture refrigerant mi
237. ount a pressure gauge on the low pressure service port 2 Connect the Service Checker 3 Reset the operation using the remote controller and then restart the operation Are the characteristics of the low pressure sensor normal See 1 YES NO Replace the low pressure sensor Is the pressure detected with the PC board normal See 2 N Replace the main PC board YES low pressure sensor is normal and the pressure detected with the PC board is also normal low pressure has really become low Refer to information on P 219 remove the causes by which the low pressure has become low 1 Make a comparison between the voltage of the pressure sensor 4 and that read by the pressure gauge As to the voltage of the pressure sensor make measurement of voltage at the connector and then convert it to pressure according to information on P 253 2 Make a comparison between the low pressure value checked with the Service Checker and the voltage of the pressure sensor see 1 9 Make measurement of voltage of the pressure sensor 5V Connector for low pressure sensor Blue Micro controller A D input Make measurement of DC voltage between these wires 4 Troubleshooting 167 Troubleshooting by Indication the Remote Controller 3 21 5 Inverter Compressor Motor Lock Remote Controller Display Applicable Models M
238. perate the equipment can cause an electrical shock or fire Introduction Urban Multi ML5 Mini UM Heat Pump Do not repair the electrical components with wet hands Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water Washing the unit with water can cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Do not tilt the unit when removing it The water inside the unit can spill and wet the furniture and floor Be sure to check that the refrigerating cycle section has cooled down sufficiently before conducting repair work Working on the unit when the refrigerating cycle section is hot can cause burns Use the welder in a well ventilated place Using the welder in an enclosed room can cause oxygen deficiency 1 1 2 Cautions Regarding Products after Repair Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipment make sure that the new installation site has sufficient strength to
239. peration becomes possible for about 2 minutes If you do not push the RESET button the unit cannot be run for up to 10 minutes to automatically set master power Status Outdoor unit Test lamp H2P Blinks Can also be set during operation described above Indoor unit If ON button is pushed during operation described above the operation lamp lights but the compressor does not operate Returns to normal when automatic setting is complete 1 2 3 When Indoor Unit or Outdoor Unit has been Added or Indoor or Outdoor Unit PC Board has been Changed Test Operation Be sure to push and hold the RESET button for 5 seconds If not the addition cannot be recognized In this case the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc Status Outdoor unit Test lamp H2P ON Can also be set during operation described above If ON button is pushed during operation described above the UH or U4 malfunction indicator blinks Returns to normal when automatic setting is complete 85 Outdoor Unit PC Board Layout Urban Multi ML5 Mini UM Heat Pump 2 Outdoor Unit PC Board Layout 0 4 5 6ML5XPQ AIP o A2P emer mum 777 0 4 5 6ML5DPQ 0 9 0
240. perly the terminal connection section can cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 4104 in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to locate the leak and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leak cannot be located and the repair work must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it can generate toxic gases when it contacts flames such as fan and other heaters stoves and ranges When replacing the coin battery in the remote controller be sure to disposed of the old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor immediately Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combu
241. ple Centoral Remote Controller Indoor Outdoor Outdoor Outdoor ndoor Outdoor Outdoor Outdoor F1 F2 F1 F2 F1 F2 F1 F2 pus Pa P2 _ a 1 00 Main Sub Group Control by Remote Contoller autmatic unit address 1 01 1 02 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 No Remote Controller 1 03 1 04 0917 Caution When turning the power supply on the unit may often not accept operation while 88 is displaying after all indications were displayed once for about 1 minute on the liquid crystal display This is not an operative fault Test Operation Field Setting Urban Multi ML5 Mini UM Heat Pump 3 1 8 Setting of Operation Control Mode from Remote Controller Local Setting The operation control mode is compatible with a variety of controls and operations by limiting the functions of the operation remote controller Furthermore operations such as remote controller ON OFF can be limited in accordance with the combination conditions Refer to information in the next page Central remote controller is normally available for operations Except when centralized monitor is connected 3 1 9 Contents of Control Modes Twenty modes consisting of combinations of the following five operation modes with temperature and operation mode setting by remote controller can be set and displayed by operation modes 0 through 19 102 ON OFF control impossible by
242. pressure sensor output or less The voltage 5V X18A 2 Measure voltage here YES Out of gas closing of stop valve or refrigerant system is clogged Requires check of refrigerant system YES Replace main outdoor unit PC board A1P Replace low pressure sensor Out of gas or refrigerant system is clogged Requires check of refrigerant system Replace the thermistor Replace the low pressure sensor Replace the outdoor unit PC board A1P V2819 Low pressure sensor V2809 Refer to Thermistor Resistance Temperature Characteristics table on P251 2 Refer to Pressure Sensor Pressure Voltage Characteristics table on P253 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 42 2 Power Supply Insufficient or Instantaneous Failure Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting i U 4 6ML5DPQ U 4 6ML5XPQ Detection of voltage of main circuit capacitor built in the inverter and power supply voltage When the abnormal voltage of main circuit capacitor built in the inverter and abnormal power supply voltage are detected Power supply insufficient Instantaneous power failure Defect of outdoor unit fan motor Defect of outdoor inverter PC board A2P 191
243. pressure gauge 0 1 to 3 8 MPa 76 cmHg to 38 kg cm 1 4 5 5 16 2min 2 5min e No oil is used in pressure test of gauges For prevention of contamination 264 Precautions for New Refrigerant R 410A Panasonic Precautions for New Refrigerant R 410A Temperature scale indicates the relationship between pressure and temperature in gas saturated state Differences Change in pressure Change in service port diameter Charge hose for R 410A Hose with ball valve Specifications Working pressure 5 08 MPa 51 8 Rupture pressure 25 4 MPa 259 kg cm Available with and without hand operate valve that prevents refrigerant from outflow Differences Pressure proof hose Change in service port diameter Use of nylon coated material for HFC resistance Charging cylinder Can not be used Specifications Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder Differences The cylinder can not be used for mixed refrigerant since mixing ratio is changed during charging When R 410A is charged in liquid state using charging cylinder foaming phenomenon is generated inside charging cylinder Precautions for New Refrigerant R 410A 265 Precautions for New Refrigerant R 410A Urban Multi ML5 Mini UM Heat Pump 266 9 Weigher for refrigerant charge Specifications High accuracy TA101A for 10 kg cylinder 2g
244. quired amount of refrigerant from the piping length and add an adequate amount of refrigerant Recalculate the required amount of refrigerant from the piping Refrigerant overcharge length and correct the refrigerant charge level by recovering any excessive refrigerant with a refrigerant recovery machine Check if the additional refrigerant charge has been finished Insufficient refrigerant Insufficient supply voltage Check to see if the supply voltage is supplied properly Power supply cables are connected in the Connect the power supply cables in normal phase Change any reverse phase instead of the normal phase two of the three power supply cables L1 L2 L3 to correct phase If a check operation has not been No power is supplied to an outdoor unit Turn the power on for the outdoor unit If no dedicated indoor unit is being used Check the indoor unit If it is not a dedicated unit replace the indoor unit oe valve of an outdoor unitis Open the gas side shutoff valve and the liquid side shutoff valve If the right indoor unit piping and wiring are Make sure that the right indoor unit piping and wiring are properly not properly connected to the outdoor unit connected to the outdoor unit If the interunit wiring has not be connected Make sure the interunit wiring is correctly attached to terminals or it has shorted X2M F1 F2 TO IN D UNIT on the outdoor unit circuit board Test Operation 83 Test Operation U
245. r Range which thermostat sensor in remote controller can be used V2769 Ex When heating Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 28 C A D This example also assumes there are several other air conditioners the UM system 5 off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 25 C A gt C Remote controller thermostat sensor is used for temperatures from 25 C to 28 And assuming suction temperature has changed from 28 C to 18 C D A Remote controller thermostat sensor is used for temperatures from 28 C to 23 C D B Body thermostat sensor is used for temperatures from 23 C to 18 69 Outline of Control Indoor Unit Urban Multi ML5 Mini UM Heat Pump 6 4 Freeze Prevention Freeze When the temperature detected by liquid pipe temperature thermistor R2T of the indoor unit Prevention by Off heat exchanger drops too low the unit enters freeze prevention operation in accordance with Cycle Indoor the following conditions and is also set in accordance with the conditions given below Unit Conditions for starting freeze prevention Temperature is 1 C or less for total of 40 min or temperature is 5 C or less for total of 10 min Conditions for stopping freeze prevention Temperature
246. r Caution or parts damage may be occurred Field drain piping has a defect such as upward sloping YES Modify the drain piping A humidifier unit optional accessory is installed on the indoor unit YES Check if the humidifier unit is leaking Defect of indoor unit PC board V2782 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 9 rut Indoor Unit Malfunction of Capacity Determination Device Remote i Controller Display Applicable All indoor unit models Models Method of Capacity is determined according to resistance of the capacity setting adaptor and the memory Malfunction inside the IC memory on the indoor unit PC board and whether the value is normal or abnormal Detection is determined Malfunction Operation and Decision 1 When the capacity code is not contained in the PC board s memory and the capacity setting Conditions adaptor is not connected 2 When a capacity that doesn t exist for that unit is set Supposed You have forgotten to install the capacity setting adaptor Causes Defect of indoor unit PC board Troubleshooting Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred The indoor unit PC board was replaced with a replacement C board NO Replace the indoor unit PC board requires installation of a capacit
247. r its address changed NO Is the power supply turned on for indoor units displaying malfunction NO transmission wiring NO disconnected or wired incorrectly YES Is transmission with all indoor units malfunctioning NO YES transmission wiring with the master controller disconnected or wirec incorrectly NO YES master controller s connector for setting master controller disconnected NO YES YES Is the group No of malfunctioning indoor units set YES NO Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Reset power supply simultaneously for all optional controllers for centralized control Turn indoor unit s power supply Fix the wiring correctly Set the group No correctly gt Replace indoor unit PC board Fix the wiring correctly Connect the connector correctly Replace the central PC board V2832 Troubleshooting 42 M PC Board Defect 1 bdo Controller Display Applicable Centralized remote controller Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Defect of central remote controller PC board Causes Troubleshooting Replace the central remote controller PC board Troubleshooting 207 Troubleshooting by Indication on the Centralized Remote Controller 4
248. ransmission wiring Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the central control address group No set for the indoor unit YES NO Is the switch for setting each address set correctly NO _ the transmission wiring disconnected or wired incorrectly YES NO Set by remote controller the central control address for indoor units connected to the central control line Set the switch for setting each address correctly and simultaneously reset the power supply for all optional controllers Fix the wiring correctly Replace the PC board of the unified ON OFF controller V2844 217 Troubleshooting by Indication on the Unified ON OFF Controller CHECK 1 Check for causes of rise in high pressure Urban Multi ML5 Mini Heat Pump Referring to the Fault Tree Analysis FTA shown below probe the faulty points Stop valve closed Check to be sure the stop valve is open Local Hiah pipe T pressure Me i S Bent or crashed pipe Conduct visual checks for pipe conditions rise ogging of foreign lt 5 there any temperature difference caused before ing particles and after the filter or branch pipe n cooling If the outdoor unit electronic Faulty outdoor Faulty valve coil lt Are the coil resistance and insulation normal expansion valve is throttled unt dide See 1
249. ration controlled a or timer by timer _ Acceptance 0 Rejection Rejection E Example Rejection Example RUN m a Mn OFF sabor Rejection 2 Rejection Example remote controller ON OFF control impossible by remote controller Rejection Acceptance Centralized Acceptance ejection Rejection 15 Acceptance Acceptance Acceptance 6 Rejection Individual Acceptance Acceptance Axepaxe 8 _ Rejection Timer operation Acceptance Acceptance Rejection Rejection 18 possible by During timer at ON During timer at ON remote controller position only position only Acceptance Do not select timer operation possible by remote controller if not using a remote controller Operation by timer is impossible in this case 1 Factory setting Central remote controller When ON OFF temperature setting and operation mode settin by local remote controller is forbidden UNDER CENTRAL CONTROL is displayed on the remote controller Test Operation 103 Field Setting Urban Multi ML5 Mini UM Heat Pump 3 2 Field Setting from Outdoor Unit 3 2 1 Setting by Dip Switches The following field settings are made by dip switches on PC board Setting item Description DS1 1 Cool Heat Used to set cool heat change over setting by remote OFF Factory set 1 controller equipped with outdoor unit Note 1 DS1
250. rature thermistor is detected Defect of thermistor R2T for outdoor unit discharge pipe Defect of outdoor unit PC board A1P AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connector is connected to X12A of outdoor unit PC board A1P Connect the thermistor and turn on again Resistance is normal when measured after disconnecting the thermistor R2T from the outdoor unit PC board 5 0 NO Replace the thermistor R2T Replace outdoor unit PC board A1P V3072 Refer to thermistor resistance temperature characteristics table on P252 175 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 28 5 Outdoor Unit Malfunction of Thermistor R3T R5T for Suction Pipe 1 2 Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 176 U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from the temperature detected by the thermistor for suction pipe 1 2 When a short circuit or an open circuit in the thermistor for suction pipe 1 2 are detected Defect of thermistor R3T R5T for outdoor unit suction pipe Defect of outdoor unit PC board A1P Be sure to turn off power switch before connect or disconnect connector Cautio
251. rban Multi ML5 Mini UM Heat Pump 1 1 6 Confirmation on Normal Operation e Conduct normal unit operation after the check operation has been completed When outdoor air temperature is 24 CDB or higher the unit can not be operated with heating mode See the installation manual attached e Confirm that the indoor outdoor units can be operated normally When an abnormal noise due to liquid compression by the compressor can be heard stop the unit immediately and turn on the crankcase heater to heat up it sufficiently then start operation again Operate indoor unit by one to check that the corresponding outdoor unit operates e Confirm that the indoor unit discharges cold air or warm air e Operate the air direction control button and flow rate control button to check the function of the devices 84 Test Operation Panasonic Test Operation 1 2 Operation when Power is Turned On 1 2 1 When Turning On Power First Time The unit cannot be run for up to 12 minutes to automatically set the master power and address indoor outdoor address etc Status Outdoor unit Test lamp H2P Blinks Can also be set during operation described above If ON button is pushed during operation described above the UH malfunction indicator blinks Returns to normal when automatic setting is complete 1 2 2 When Turning On Power the Second Time and Subsequent the RESET BS5 button on the outdoor unit PC board O
252. re 3 43 Check Operation not 3 44 Malfunction of Transmission between Indoor Units and 9 else ge oed eta UNIES EMEND 3 45 5 Malfunction of Transmission between Remote Controller and 0 MET EEEN 3 46 US Malfunction of Transmission between Main and Sub Remote Controllers uui ve oppi ao ead tata EK DOE 3 47 45 Malfunction of Transmission between Indoor and Outdoor Units the Same System Urban Multi ML5 Mini UM Heat Pump 3 48 uA Excessive Number of Indoor Units 200 3 49 Address Duplication of Central Remote Controller 201 3 50 Malfunction of Transmission between Central Remote Controller and Indoor 202 3 51 UF System not Set 204 3 52 Malfunction of System Refrigerant System Address Undefined 205 Troubleshooting by Indication on the Centralized Remote 206 4 1 ue Malfunction of Transmission between Centralized Remote Controller and Indoor Unit 206 4 2 MP PC Board 207 4 3 Malfuncti
253. remote controller 16 The outdoor unit After stopping operation compressor or the outdoor unit fan does not Stop The outdoor gets While stopping operation hot 18 Hot air comes out from the system even though it stops 19 Thesystem does The system is in dry operation The reason is that the dry not cool air well Troubleshooting Immediately after turning ON the power supply Hot air is felt while the system The reason is that the system is checking to be sure the remote controller is normal It stops in order to prevent oil or refrigerant from dwelling The reason is that the compressor is warmed up to provide smooth startup of the system On UM systems small quantity of refrigerant is fed to indoor units in the stopped state when other indoor units are in operation operation serves not to reduce the room temperature where possible Normal operation This code is displayed for a period of approximately one minute at maximum Normal operation It stops after a lapse of approximately 5 to 10 minutes Normal operation Normal operation Change the system to cooling operation 127 Troubleshooting by Remote Controller Urban Multi ML5 Mini Heat Pump 2 Troubleshooting by Remote Controller 21 The INSPECTION TEST Button The following modes can be selected by using the Inspection Test Operation button on the remote control Depress Insp
254. ress BS4 TEST once When BS4 TEST is not pressed within 10 minutes after the led indication is shown charging is stopped H2P H4P H5P H6P H7P Code remote controller C 78 Test Operation Panasonic Note Note Caution Test Operation Test Operation 4 4 The led indication becomes as shown in the table below during automatic refrigerant charging During automatic refrigerant charging the remote controller indicates TEST test operation and x4 external control H2P H4P H5P H6P H7P gt If the led display below appears the refrigerant tank is empty Replace the refrigerant tank open valve A and re charge H2P H5P H6P H7P Code remote controller e The led indication becomes as shown in the table below when automatic refrigerant charging is about to end Prepare to close the valve on the refrigerant tank H2P H5P H6P H7P Code on remote controller D D DY 4 It is possible that the code is not shown on the remote controller but this does not indicate a malfunction The led indication can immediately shift to the situation as shown in Case 1 Charging complete on page 79 4 5 When the led indication becomes as shown in the table below quickly close valve A and follow instructions as described below B When adding refrigerant is do
255. rom the outside The input is performed from the T1 T1 terminal of the operation terminal block X1A in the electric component box A Setting Table 21 2 Operation by input of the signal ON Forced stop prohibition of using the remote 01 controller OFF Permission of using the remote controller OFF ON Permission of operation ON OFF Stop ON Operation OFF The system stops then the applicable unit indicates AO The other indoor units indicate U9 94 Test Operation Panasonic Field Setting 8 Thermostat Switching Differential value during thermostat ON OFF control can be changed First Code No Second Code No Differential value 12 22 2 9 Air Flow Setting When Heating Thermostat is OFF This setting is used to set air flow when heating thermostat is OFF When thermostat OFF air flow volume up mode is used careful consideration is required before deciding installation location During heating operation this setting takes precedence over 7 Fan Stop When Thermostat is OFF First Code No Second Code No Contents 4 2 Preset air fow 10 Setting of operation mode to AUTO This setting makes it possible to change differential values for mode selection while in automatic operation mode o 04 05 06 o o The automatic operation mode setting is made by the use of the Operation Mode Selector button 11 Auto Restart after Power Failure Reset For
256. rried out normally for a certain amount of time Indoor to outdoor outdoor to outdoor transmission wiring F1 F2 disconnection short circuit or wrong wiring Outdoor unit power supply is OFF System address doesn t match Defect of outdoor unit PC board Defect of indoor unit PC board Troubleshooting Panasonic Troubleshooting N Caution Has the indoor or outdoor unit PC board been replaced or has the indoor outdoor or outdoor outdoor unit transmission wiring or parts damage may be occurred YES indoor unit Is indoor remote controllers of the NO outdoor and outdoor n YES same refrigerant system outdoor unit transmission display wiring normal YES Reset the power supply Outdoor Are there any unit PC board NO broken wires in the connectors NO microcomputer monitor of the inverter PC board A1P and the HAP blinks control PC board A2P YES YES NO outdoor unit PC board is 220 240 V YES NO The fuse F3U on YES the outdoor unit s PC board is burnt Has either e fuse F4U on the outdoor unit PC board A1P or the fuse F1U on the inverter PC board A2P blown out YES lee Si gt connector Is ES resistance etween pins in excess NO iud ment criteria NO Operation ready lamp H2P is blinking YES Lamp does YES not go off for 12 minutes or more NO
257. rroneous field setting System transmission malfunction once to display First digit of Overconnection malfunction of indoor units malfunction code Malfunction of field setting Refrigerant abnormal Connection error BP unit Faulty system malfunction Wiring error Auto address error Conflict in wiring and piping no setting Conflict in wiring and piping for system Transmission error between indoor transmission error and outdoor unit transmission error P P U U U U U U U U lt Confirmation of malfunction 2 gt Push the SET BS2 button once to Detail display Second digit of malfunction description code on next page Confirmation of malfunction 3 Push the SET BS2 button once to display malfunction location Confirmation of malfunction 4 Push the SET BS2 button once to display master or slave 1 or slave 2 and malfunction location Push thelIRETURN 853 and switches to the initial status of Monitor mode Push the MODE BS1 button and returns to Setting mode 1 140 Troubleshooting Panasonic 7 Troubleshooting by Remote Controller O ON e OFF Valluncton Confirmation oi maluncion1 Confirmation of malfunction Confirmation of malfunction Confirmation of malluncion 4 ier of contents of med of contents of Display 1 of Display 2 of malfunction first digit malfunction
258. s Method of Even if a malfunction occurs operation still continues Malfunction Malfunction is detected according to the moisture output voltage detected by the moisture Detection sensor Malfunction When the moisture sensor is disconnected or short circuited Decision Conditions Supposed Faulty sensor Causes Disconnection Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Remove the humidity sensor from the indoor PC board and insert it again Does it function normally YES It is normal Poor connector contact NO Delete the malfunction code record from the remote controller 1 Is displayed controller 2 YES Replace the humidity sensor PC board ASS Y A2P 3 NO It is believed that external factors noise or else other than failure caused the malfunction 1 To delete the record the ON OFF button of the remote controller must be pushed and held for 5 seconds in the check mode 2 To display the code the Inspection Test Operation button of the remote controller must be pushed and held in the normal mode 8 If TZ is displayed even after replacing the humidity sensor PC board ASS Y A2P and taking the steps 1 and 2 replace the indoor PC board ASS Y A1P Troubleshooting 161 Troubleshooting by Indication on the Remote Controller
259. s 4 button 1 4 given in the figure below 6 1 1 When the Float Switch is Tripped while the Cooling Thermostat 1 ON Remote controller A3 flashing malfunction stop ON RN running OFF ON N Float switch OFF mE OFF lt gt lt gt 5 min 5 min 5 sec 1 Residual operation Malfunction residual VLO08 1 The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 6 1 2 When the Float Switch is Tripped while the Cooling Thermostat is OFF Enters malfunction treatment if the float switch is not reset within 5 minutes O M Tomoa Remote controller flashing malfunction stop running AN Float switch OFF ON OFF lt gt lt gt 5min 5 sec VLOO9 Function 65 Outline of Control Indoor Unit Urban Multi ML5 Mini UM Heat Pump 6 1 3 When the Float Switch is Tripped During Heating Operation ON Humidifier Reset Float switch lt gt 5 min 5 sec 5min Thermostat ON Remote controller flashing malfunction stop running VLO10 During heating operation if the float switch is not reset even after the 5 minutes operation 5 seconds stop 5 minutes operation cycle ends operation continues until the switch is reset 6 1 4
260. s switch for setting each address duplicated Are wo or more unified ON OFF controllers connected YES NO Correct the setting of the unified ON OFF controller s switch for setting each address and reset the power supply of the unified ON YES OFF controller NO V2842 215 Troubleshooting by Indication on the Unified ON OFF Controller 216 wiring adaptor for YES electrical appendices Is a data station connected Is a schedule timer connected Is a parallel interface connected Is the schedule timer s individual combined connector onnected YES control connected with the connector for setting master Reset the power supply for all optional controllers for centralized control simultaneously If the malfunction is still not cleared Urban Multi ML5 Mini UM Heat Pump Cannot be used in combination with a wiring adaptor for electrical appendices Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously Schedule timer and data station cannot be used in combination Disconnect either the schedule timer or data station and reset the power supply for all optional controllers for centralized control simultaneously Schedule timer and parallel interface cannot be used in combination Disconnect either the schedule
261. s are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB Standard Accessories Safety devices PC board o fuse PC board fuse Fan motor thermal protector Drain pump fuse equivalent refrigerant piping 8m level difference Om Notes Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 8m level difference Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat 12 Specifications Panasonic Specifications Ceiling Mounted Cassette Type Round flow SS 1 Heating 25 32 40 59 63 KW o o 0x3 099 005 005 005 095 90 Casing Material Galvanised steel Wath 3 De m 88 0 unt 8o 80 890 _ As SEIL Exchanger Dimensions S Nrof Stages Stages T A a Cross fin coil Multi louver fins and tubes Turbo fan Bem Low mimm so 1 39 a fw mmi 39 90 E E QTS48D11M Motor Steps high Refrigerant R 410A Nene Sou
262. se Installation guide Drain sealing pad The sound pressure values are mentioned for a unit installed with rear suction The sound power level is an absolute value indicating the power wich a sound source generates Not Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB otes equivalent refrigerant piping 5m level difference Om Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 CDB 6 CWB equivalent refrigerant piping 5m horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat 14 Specifications 600x600 Ceiling Mounted Cassette Type Multi Flow Nomina Capacity Power input 0 073 0 073 0 076 0 089 0 115 Nominal 0 064 0 064 0 068 0 080 0 107 Galvanised steel Dimensions u Wd m 55 55 S5 S5 Dem m ss ss S5 Ss S5 ho e e e e 1 fee 05 09 09 2 Heat Exchanger uo ew ___ E 4 Lu _ 90 ___ 11 00 14 00 Air Flow Rate Cooling High mfmin ER 10 00 aan Model 5 2 15 Fan Motor Outout Refrigerant R 410A me Sound Level Cooling power ommna Cooling Sound disi tow eA 59 59 59 59 Li
263. ses Troubleshooting 174 gt al p U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from the temperature detected by the outdoor air thermistor When the outside air temperature thermistor has short circuit or open circuit B Defect of thermistor R1T for outdoor air Defect of outdoor unit PC board A1P Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred N Caution Connector is connected to X114 of outdoor PC board A1P Connect the connector and turn on again Hesistance is normal when measured after disconnecting the thermistor R1T from the outdoor unit PC board 3 5kQ to 360kQ N 2 Replace the thermistor R1T Replace outdoor unit PC board A1P V3070 Refer to Thermistor Resistance Temperature Characteristics table on P251 Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller 3 27 43 Outdoor Unit Malfunction of Discharge Pipe Thermistor R2T Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting m i U 4 6ML5DPQ U 4 6ML5XPQ Malfunction is detected from the temperature detected by discharge pipe temperature thermistor When a short circuit or an open circuit in the discharge pipe tempe
264. set by each individual unit Setting changes however cannot be checked except in the individual mode for those in parentheses 2 he mode numbers inside parentheses cannot be used by wireless remote controllers so they cannot be set individually Setting changes also cannot be checked Marked are factory set Do not make settings other than those described above Nothing is displayed for functions the indoor unit is not equipped with 5 88 may be displayed to indicate the remote controller is resetting when returning to the normal mode 6 If the setting mode to Equipped heat reclaim ventilation fan conducts the fan residual operation by linking to indoor unit 7 The S 50 63 80 100 125EM3HPS cannot be set 30Pa The 5 40 5 cannot set to 180 or 200Pa TO 15 Not equipped Equipped EM gt c Test Operation 91 Field Setting Urban Multi ML5 Mini UM Heat Pump 3 1 5 Applicable Range of Field Setting Concealed Ceiling mounted cassette ceiling unit unit ceiling unit suspended mounted floor uua small large i i at ee unit Ultra long life filter sign Remote controller thermostat adjustment Ceiling Air flow direction adjustment Down flow operation direction adjustment range Field set fan speed selection Discharge air temp Cooling Discharge air temp Heating 92 Test Operation
265. side of the service cover tm Contains fluorinated greenhouse gases covered by the Kyoto fluorinated greenhouse gases R 110 the Kyoto Protocol factory refrigerant charge of the product unit name plate additional refrigerant amount charged in the field 1218 total refrigerant charge outdoor unit refrigerant cylinder and manifold for charging Test Operation Test Operation 1 1 4 2 Procedures for adding refrigerant Procedure 1 Adding refrigerant by using the automatic refrigerant charging function recommended How to connect the tank Liquid line stop valve Gas line stop valve Liquid line stop valve Service port for Y1 Gas line stop valve adding refrigerant Valve A R 410A tank Measuring instrument Measuring instrument To indoor unit To unit When the refrigerant tank is connected and the specified operation is performed the appropriate amount of refrigerant will be charged into the system After charging the system will stop automatically The refrigerant must be charged according to the procedure described below Caution Make sure to turn ON the power 6 hours before starting the operation This is necessary to warm the crankcase by the electric heater B Automatic charging is able to charge kg hour refrigerant at an outside temperature of 0 C to 24 kg hour refrigerant at an outside temperature of 35
266. snd NIA HOLOANNOO V82X 3OHVHOSIQ 219190919 HOLIOVdVO 0 79 19 AHOSS3OOV HOISIS3H EY HOLIOVdVO TWNOILdO HOLO3NNOO FOIA LINDYIO 9941114 17 ONISNSS LNSYYNO 2H 3 9309 LNSYYND LINDYIO dev Y31714 3510 022 212 HOLSIS3H Qquvog JAYA NOISNVdX3 Addis LINDYIO OINOHLOATS SLA H3MOd SNIHOLIMS Sd LINN HOOQNNI 55 0 1VNOILdO xS H3TIOHINOO 000009 VEEX yg o V9X 000 VEX HJTIOHLNOO ALOWSY IVHIN3O E NOISSIINSNVH L ALON 3ais1no IHM LNdNI VELX V81X V9IX 99 00 ley 119 4 a E 4 VES m Leal Log oiz 28409 209 _ 2 022 N 7 Q3H MW div 91 OL SdHEWASZI 001 08 59 0S S HOS 239 Appendix Urban M
267. st Operation 109 Field Setting Urban Multi ML5 Mini UM Heat Pump Setting item display Bete MODE TEST C H selection Setting condition display 9 2 IND Master Slave H7 H3P HAP H5P H6P Factory set Level 1 outdoor fan with6steporlower O e e O Level 2 outdoor fan with 5 step orlower Level outdoor fan with 4steporlowe e o e About 20 00 OE EEEE JO About 22 00 factory seting e e e e About 24 00 0900000 090000 090000 0 O e 0 0 O 0e O ON 09009000 60 0 Demand setting 1 70 demand 6 86 80 demand 32 oeeeeoce The numbers in the No column represent the number of times to press the SET BS2 button Low noise setting Night time low noise operation start setting Power transistor check mode Capacity 25 26 27 28 29 precedence setting 3 Night time low noise operation end setting 110 Test Operation Panasonic c Monitor mode To enter the monitor mode push the MODE BS1 button when in Setting mode 1 Selection of setting item gt Push the SET BS2 button and set the LED display to a setting item Confirmation on setting contents Push the RETURN BS3 button to display different data of set items Push the RETURN BS
268. stible gas leaks If a combustible gas leaks and remains around the unit it can cause a fire Be sure to install the packing and seal on the installation frame properly For integral units If the packing and seal are not installed properly water can enter the room and only wet the furniture and floor 1 1 3 Inspection after Repair Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and wires can cause an electrical shock excessive heat generation or fire Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fire Introduction Urban Multi ML5 Mini UM Heat Pump Check to see if the parts and wires are mounted and connected properly and if the connections at the soldered or crimped terminals are secure Improper installation and connections can cause excessive heat generation fire or an electrical shock If the installation platform or frame has corroded replace Corroded installation platform or frame can cause the unit to fall resulting in injury Check the grounding and repair it if the equipment is not properly grounded
269. system to Field Setting Mode 3 Select the MODE No 32 with the 6 button 4 Use the button to select the group No for each group Group numbers increase in the order of 1 00 1 01 1 15 2 00 4 15 5 Press to set the selected group No 6 Press to return to the NORMAL MODE TEST GROUP NO FIELD SET MODE 2 56 CO 0 E OIG B For wireless remote controller see the following For setting group No of HRV and wiring adaptor for other air conditioners etc refer to the instruction manual attached NOTICE Enter the group No and installation place of the indoor unit into the attached installation table Be sure to keep the installation table with the operation manual for maintenance 100 Test Operation CZ 02RW type B Group No setting by wireless remote controller for centralized control CZ 01RW type 1 When the normal mode push 5 button for 4 seconds or more and operation then enters the field set mode Set mode 00 with button Set the group No for each group with V button advance backward 2 3 4 Enter the selected group numbers by pushing button 5 Push 45 button and return to the normal mode MODE NO FIELD SET MODE 3 1 5 V0916 Group No Setting Exam
270. t R 410A 257 1 Precautions for New Refrigerant R 4104 208 IECIT 258 L2 Remgerani 260 1 3 MONS 261 index Drawings amp Flow Charts Table of Contents Panasonic Introduction 1 Introduction 1 1 Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work Warnings The caution items are classified into A Warning and Caution The Warning items are especially important since they can lead to death or serious injury if they are not followed closely The Caution items can also lead to serious accidents under some conditions if they are not followed Therefore be sure to observe all the safety caution items described below About the pictograms N This symbol indicates an item for which caution must be exercised The pictogram shows the item to which attention must be paid This symbol indicates a prohibited action The prohibited item or action is shown inside or near the symbol This symbol indicates an action that must be taken or an instruction The instruction is shown inside or near the symbol After the repair work is complete be sure to conduct a test operation to ensure that the equipment operates normally and exp
271. tage Electronic Expansion Valve Failure Remote Controller Display Applicable U 4 6ML5DPQ U 4 6ML5XPQ Models Method of Short of gas malfunction is detected by discharge pipe temperature thermistor and low pressure Malfunction saturation temperature Detection Malfunction Microcomputer judge and detect if the system is short of refrigerant Decision Malfunction is not decided while the unit operation is continued Conditions Supposed Out of gas or refrigerant system clogging incorrect piping Causes Defect of pressure sensor Troubleshooting Defect of outdoor unit PC board A1P Defect of thermistor R3T 189 Troubleshooting by Indication the Remote Controller Troubleshooting 190 1 Urban Multi ML5 Mini UM Heat Pump Be sure to turn off power switch before connect or disconnect connector Caution or parts damage be occurred YES NO The suction pipe1 temp minus low pressure saturation temp is 20 C or higher YES NO Resistance is normal when measured with the thermistor R3T for suction pipe1 disconnected from the outdoor unit PC board x NO YES Is the low pressure sensor correct NO YES 2 Voltage measurement point Outdoor unit PC board A1P GND Microcomputer A D input Low pressure is 0 25 MPa of X18A pins 2 and 3 on main outdoor unit PC board A1P is 1 0 VDC or less Low
272. tages Sirocco fan Fan Fe 11 00 11 00 13 00 18 00 codo 1000 15 00 a ee aa 3D12H1AN1V1 3D12H1AN1V1 3D12H1AP1V1 4D12H1AJ1V1 Fan Motor high Direct dive RATOA Cooling Sound Pressure 30 1 5 wo Flare connection Diameterjmm 4 64 64 95 Piping Gas Flare connection Liquid OD Coor Pan Dimensions mm 20 Dam m amp o 8 amp wm je 88 98 Installation and operation manual Metal clamp for drain Clamps Insulation for hangar bracket Standard Accessories Positioning Jig for Installation Paper pattern for installation Drain hose Insulation for fitting Sealing Pads Screws Washer Air Outlet blocking pad Nominal cooling capacities are based on indoor temperature 27 CDB 19 CWB outdoor temperature 35 CDB equivalent refrigerant piping 7 5m horizontal Nominal heating capacities are based on indoor temperature 20 CDB outdoor temperature 7 6 CWB Notes equivalent refrigerant piping 7 5m horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Sound pressure levels are measured at 220V 16 Specifications Panasonic Specifications Slim Ceiling Mounted Duct
273. timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the schedule timer s individual combined connector and reset the power supply for all optional controllers for centralized control simultaneously Arrange so that the connector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the connector for setting master control from the master controller connect to another optional controller for centralized control and simultaneously reset all optional controllers for centralized control again The controller connected by the connector for setting master control when the malfunction is cleared is defective and must be replaced V2843 Troubleshooting Panasonic Troubleshooting by Indication on the Unified ON OFF Controller 5 3 Display Under Host Computer Integrate Control Blinks Repeats Double Blink Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting under host computer integrated control Repeats double blink Unified ON OFF controller Central control address group No is not set for indoor unit Improper address setting improper wiring of t
274. tional Parts 30 1 1 Outdoor 2 00000000 mre ereretrememerirreremirrs ier eeis 30 1 2 Indoor DUBIE seo essere rio ar sonno ad ls c occae crede 32 List of Electrical and Functional Parts 29 List of Electrical and Functional Parts Urban Multi ML5 Mini UM Heat Pump 1 List of Electrical and Functional Parts 11 Outdoor Unit 0 4 5 6ML5XPQ Remark m s JTIG VDLYR Compressor Output 2 5kW 3 0kW 3 5kW A2P X102A Crankcase heater INV ETHC X28A CH 1 2 0 07KW i e Over current relay UE H L Electronic expansion Y 480pls MIP X21A valve Main PI control E Electronic expansion Cooling control 22 4 valve Subcool Bion STF 0404G Y Solenoid valve Hot gas 25 TEV1620DQ2 X26A Solenoid valve Unload circuit TEV1620DQ2 A1P X27A j ACB 4UB10 pee SIPH OFF 4 0 0 0 15 3 0 0 15 1 2 S S related parts SNP T AIPXI2AS34Pin 2 Thermistor PCB exchanger Others Fuse AGmOVeSATmelguss 1 3 2 3 2 3 4 5 6 7 8 30 List of Electrical and Functional Parts 0 4 5 6ML5DPQ Remark mem PCB terminal Type JFi006 VDL X28A Output Crankcase heater INV E1HC NS 2 0 0764 Over current relay ae Electronic expansion 480pls A1P X
275. ton for 4 seconds or longer Service mode Push the button for 4 seconds or longer VF020 Service Mode 1 Select the mode No Operation Set the desired mode No with the button Method For wireless remote controller Mode 43 only can be set 2 Select the unit No For group control only Select the indoor unit No to be set with the time mode For wireless remote controller button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 push button to be able to change setting before setting work LCD code blinks For details refer to the table in next page 4 Define the setting contents Modes 44 45 Define by pushing the timer button After defining LCD code changes blinking to ON 5 Return to the normal operation mode Push the button one time Troubleshooting 133 Troubleshooting by Remote Controller Urban Multi ML5 Mini UM Heat Pump Contents and operation method Remote controller display example No Malfunction Display malfunction hysteresis The history No can be changed with the button hysteresis display Unit 1 TT Malfunction code 1 2 04 Malfunction code Hystory No 1 9 1 Latest Display of sensor Display various types of data and address data Select the data to be displayed with the 5 button Sensor data Sensor dala 0 Thermostat sensor in remote controller Unit No Sensor type 1 Suction 2 L
276. tton and select FIRST CODE Push the lower button 5 and select the SECOND CODE NO Push the button 6 once and the present settings are SET Push the button 7 to return to the NORMAL MODE TEST Example If during group setting and the time to clean air filter is to FILTER CONTAMINATION HEAVY SET MODE NO to 10 FIRST CODE NO to 0 and SECOND CODE NO to 02 87 Field Setting 88 Urban Multi ML5 Mini UM Heat Pump CZ 01RT11P UNIT NO FIRST CODE NO SECOND sow 8 8 T FIELD CODE _ SET MODE c mall Ga om If optional accessories mounted on the indoor unit the indoor unit setting may have to be changed Refer to the instruction manual for each optional accessory 1 When in the normal mode press the button for a minimum of four seconds and the FIELD SET MODE is entered 2 Select the desired MODE NO with the button 3 During group control when setting by each indoor unit mode No 20 21 22 and 23 have been selected push the gt button and select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group Push the upper button and select FIRST CODE NO Push 9 lower button and sele
277. tween Indoor and Outdoor Units in the Same System 198 Malfunction of Transmission between Indoor Units and Outdoor Units 194 Malfunction of Transmission between Inverter and Cohttol POBOSEQ ii act deti eame coit 187 Malfunction of Transmission between Main and Sub Remote Controllers 197 Malfunction of Transmission between Optional Controllers for Centralized Control 208 Malfunction of Transmission between Remote Controller and Indoor Unit 196 211 Method of Replacing The Inverter s Power Transistors and Diode Modules e ee 254 N Normal Operation 49 Urban Multi ML5 Mini Heat Pump Oil Return Operation 54 Operation Lamp Blinks 212 Operation Mode 48 Operation when Power is Turned On 85 occ 246 Outdoor Unit PC Board Layout 86 Outdoor Unit Thermistors for Discharge Pipe 252 cape eee 188 PG Board Delet ee 143 163 207 Power Supply Insufficient or Instantaneous Failure 191 Precautions for New Refrigerant R 410A 258 Pressure
278. ulti ML5 Mini Heat Pump Wiring Diagrams 5 32 63 100TM3JPR qrosegode d3110H1N02 91034 55313814 1 dEV NA 1 5 J p J J d ON AINO SHOLINGNOD 4344059 JSN 034 038 22 18 718 df 18 018 19NVH0 980 MOTIJA MIA 3LIHM LHM Nd 5 401104 SV MOHS S108WAS NIVHG ANY HOLIMS 1 014 TVNOITLIGGY 3HL 31024 3 ANV V8X 30 YOLOANNOD 1119415 190 5 JHL 3AO0N3H dMf d NIVHO JHL 9NITIVISNI 35 2 NI LINN Q3HOVIIV TVANVW NOIIVITVISNI 3Hl 01 83438 5117130 NI 43717041409 310N3H 3123135 38 NOIIVH3dO 1041405 330 0 HO 30 039404 9015110 WOHJ 5381 dhl ONIIO3NNDOO N3HM 0950 9NI38 SI LIX 43911041109 410N3H 5531341 JHL N3HM 131238509 SI VEOX 1 HLIM 32 04092 7 NI LINNA OL LI LOANNOOD H3110H1NO9 910 34 1 2 ONISNASVD NI 01913 SE H0123NN02 1112812 LYOHS 2 HOLOINNOD oo 323018 1VNINWH31 9110410 310038 5371003497 12112313 2609 2409 072 006 E 5 H3M d 135 5514007 553134 39NYH0 1504330 30010 1 1917 5 34 403 8014707 ONTUIM YOLINNOO Y 1V013 JHOLOINNOD VOX YOOUNT YOLONI 1 0 140 403 YOLIINNOD AVI3H JILINIVNW 8 5310 SSATIUIM H0L 3NNOJ VEO 8 HOLIMS 80193115 055 T
279. um initial value of the evaporator outlet superheated degree is 3 C but varies depending on the discharge pipe superheated degree of inverter compressor Subcooling Electronic Expansion Valve EV3 Control Makes PI control of the electronic expansion valve to keep the superheated degree SH of the outlet gas pipe on the evaporator side for the full use of the subcooling heat exchanger SH Tsh Te SH Outlet superheated degree of evaporator C Tsh Suction pipe temperature detected with the thermistor RAT C Low pressure equivalent saturation temperature C Function 51 Basic Control Urban Multi ML5 Mini UM Heat Pump 2 4 Cooling Operation Fan Control In cooling operation with low outdoor air temperature this control is used to provide the adequate amount of circulation air with liquid pressure secured by high pressure control using outdoor unit fan Furthermore when outdoor temperature gt 20 C the compressor will run in Step 7 or higher When outdoor temperature 18 it will run in Step 5 or higher When outdoor temperature gt 12 it will run Step 1 or higher Upper limit of fan Pc HP pressure sensor detection value revolutions Step 8 lt 2 75 gt 3 24 Upper limit of outdoor unit fan revolutions control apse of 20 sec control 1 step on 1 1 Step on outdoor unit fan fan outdoor unit fan control Lapse o
280. uny KL 20 1112115 0112910149 95044 V 29119 61101940 s 941 3j UM 110 pue uo 5906 19 04 341 10 0722 419119 0 eseud 950 eseud pasJa aJ 10 1111415504 941 5151 9 91991 11 01 921105 19049 9 411 941 21 11 JUudaWd Nbse 941 10 51515002 91545 141 asnedeq 9 9 ue 592 05 J MOd 941 441449230 ued 1241 YOTIMS UlewW 941 110150 6 jusudinba 4229 10 9 1 J MOd 941 01 ASN 941 pue 11 5 941 119450 01 91 5 8 0119 21501 214192945 2 51191 9 apnyjou 01 101 400 due pue KUO sapinb 011291109 10 1 109 jeJauasb 919 uwous L 02 013190 pue 1920 919291 942 941 1 9219 u aq jjeus 3 uf 9 NOTSSINSNVUL 918 S3UIM 5111 80001010 Ue1211129 8 pasuar AQ papladdd aq 15 S1UdUOdWOD pue BULJIM IIV 19195 101 vayeoug 1102112 10150 WOUBRIpP 6UIJIM 99S 5 9 101 SV 140 sJ012npuoo 194402 950 Sapod 1900119 pue 920 319291 dd 941 YLIM 414 02 15 9115 941 UO 112014 94 01 519119192 pue 5119104002 3NI1 H3M0d 318V S3UIM 4 H211NS 3117 H3M0d 31893 S3U M 4 3 11 NOISSINSNVUL 318V9 S3UIM c N 1 AlddNS 43404 LIL sem H2LINS Neal Al 5 HOLIMS N 17111 TE 114405 229 Appendix Urban Mu
281. utdoor unit heat exchanger For details refer to P 51 Troubleshooting C SDK04009 219 Troubleshooting by Indication the Unified ON OFF Controller Urban Multi ML5 Mini UM Heat Pump CHECK 3 Check for Fan Motor Connector 1 Turn the power supply off 2 With the fan motor connector on motor side disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following table 1 White Measurement point Judgment 10060 more 1000 more GND e 4 7 100 or more s 6 7 Red 220 Troubleshooting Panasonic Appendix Part 8 Appendix 1 PPNO 222 LEF 222 224 61 cc 227 oo eet 227 2 2 Field WINING 229 2792 aeree a m 231 246 3 1 Option List of Controllers ooi otio 246 9 2 Optom LISPOFOUIQOOOF IJI eo saat 248 4 Example of Connection 249 5 Thermistor Resistance Temperature Characteristics 251 6 Pressure SENSO 253 7 Method of Replacing the Inverters Power Transistors Modules 254 221 Urban Multi ML5 Mini UM Heat Pump iagrams D
282. which a malfunction has been detected Inspection display Malfunction code Inspection Test button Note 1 Pressing the INSPECTION TEST button will blink the check indication 2 While in check mode pressing and holding the ON OFF button for a period of five seconds or more will clear the failure history indication shown above In this case on the codes display the malfunction code will blink twice and then change to 00 Normal the Unit No will change to 0 and the operation mode will automatically switch from check mode to normal mode displaying the set temperature Troubleshooting 129 Troubleshooting by Remote Controller Urban Multi ML5 Mini Heat Pump 2 3 Self diagnosis by Wireless Remote Controller In the Case of CZ 02RW Type CZ 01RW Type If equipment stops due to a malfunction the operation indicating LED on the light reception section flashes The malfunction code can be determined by following the procedure described below The malfunction code is displayed when an operation error has occurred In normal condition the malfunction code of the last problem is displayed 1 Press the INSPECTION TEST button to select Inspection The equipment enters the inspection mode The Unit indication lights and the Unit No display shows flashing 0 indication Set the Unit No Press the UP or DOWN button and change the Unit No display until the buzzer 1 is generated from
283. withstand the weight of the equipment If the installation site does not have sufficient strength and if the installation work is not conducted securely the equipment can fall and cause injury Be sure to install the product correctly by using the provided standard For integral units installation frame only Incorrect use of the installation frame and improper installation can cause the equipment to fall resulting in injury Be sure to install the product securely in the installation frame mounted ona For integral units window frame only If the unit is not securely mounted it can fall and cause injury Be sure to use an exclusive power circuit for the equipment and follow the technical standards related to the electrical equipment the internal wiring regulations and the instruction manual for installation when conducting electrical work Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire Panasonic Introduction Be sure to use the specified cable to connect between the indoor and outdoor units Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals Improper connections can cause excessive heat generation or fire When connecting the cable between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted pro
284. xture of two or more refrigerants having similar boiling points 3 design pressure is different at each product Please refer to the installation manual for each product Reference 1 10 19716 kgf C 32 125 50 50 WE DE ie HH F LAS AL TTR TAP BAN 2 4534231 d pA pL AHIR hae L7 7 7 WAP VA YV 222 ae 2 c VA 4 i Hine ROSS Hu nM 3 BEA ef SE RH ES IL UN HATE Seas a MPa Wei 7 M iin PG MASS Y kg K SI IN SS AU MJ ERES WI 0 5 kJ k MI CONT ava Pressure Enthalpy curves of HFC 32 125 50 50wt 258 Precautions for New Refrigerant R 410A Thermodynamic characteristic of R 410A DAIREP ver2 0 Temperature Steam pressure Density Specific heat at constant Specific enthalpy Specific entropy kPa pressure kJ kgk kJ kg kJ Kgk Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid
285. y setting adaptor when replacing the PC board Replace the indoor unit PC board Install a capacity setting adaptor V2783 153 Troubleshooting by Indication on the Remote Controller Urban Multi ML5 Mini UM Heat Pump 3 10 Indoor Unit Failure of Transmission Between Indoor unit PC Board and Fan PC Board Remote Controller Display Applicable Models Method of Malfunction Detecion Malfunction Decision Conditions Supposed Causes 154 t Lo 5 40 125 Check the condition of transmission between indoor PC board A1P and PC board for fan A2P using computer When normal transmission is not conducted for certain duration Connection defect of the connecter between indoor PC board A1P and PC board for fan m Malfunction of indoor PC board A1P Malfunction of PC board for fan A2P External factor such as instantaneous blackout Troubleshooting Panasonic Troubleshooting by Indication on the Remote Controller Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connector between indoor PC board and PC board for fan A2P accurately connected 1 NO gt Connect the connector accurately YES Confirm the condition of transmission on indoor PC board using local installation mode 2 Under above local NO installat
286. zed control 208 malfunction of transmission between remote controller and indoor unit 196 method of replacing the inverter s power transistors modules 254 operation lamp blinks 212 operation mode 48 operation of the remote controller s inspection test operation button 132 outdoor unit pc board layout 86 board defect 143 163 207 DIDING GIAGrAINS es 222 power supply insufficient or instantaneous failure 191 pressure Sensor 253 R refrigerant olt Ul sure 40 refrigerant overcharged 173 remote controller self diagnosis function 135 remote controller service mode 133 S self diagnosis by wired remote controller 129 self diagnosis by wireless remote controller 130 setting of low noise operation and demand operation 115 image of operation 116 setting of refrigerant additional charging operation

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