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SERVICE MANUAL - Aire Acondicionado Mitsubishi Electric

1. SYMBOL NAME SYMBOL NAME SYMBOL NAME TBI Terminal Block lt Power Supply gt RS Rush Current Protect Resistor SW4 Switch lt Test Operation gt TB2 Terminal Block lt Indoor Outdoor gt CY1 CY2 Capacitor SW5 Switch lt Function Switch Model Select gt MC Motor for Compressor P B Power Circuit Board SW6 Switch lt Model Select gt MF1 Fan Motor TB U V W Connection Terminal lt U V W Phase gt SW7 Switch lt Function Switch gt 2154 Solenoid Valve Four Way Valve TB L1 L2 L3 Conn
2. OCH415G 26 PUHZ P100YHAR1 UK PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK
3. OCH41 1 CN 7 1 3 RED WHT WHT ES 1 __ UJ I T BLK WHT CNDC 3 1 E3 HH N2 5 3 JE g 3E lt a T f hus Gg nN P2 4 RED Um a tr 1 I 5 ORN M t BLK all dts 1 ps RED tw reenn pour WHT 7 H m Za 56 OE4 DCL2 ODCL1 El 9 NI Qu BLK x DL _ BLK al mm 77 77 1 MODEL SELECT 4 The black square W indicates a switch position T e MODEL SW6 SW5 6 2 Wi 4 ON ON 8 2 52 s amp 100V OFF Fa ua Pu OFF 12345678 123456 Q LIN 51 52 53 TB 2 SW5 1 to 5 Function Switch H H INDOOR 5G Q9 unt POWER SUPPLY IN 230V 50Hz 25 PUHZ P100YHA UK PUHZ P125YHA UK PUHZ P140YHA UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block Power Supply CY1 CY2 Capacitor SW5 Switch Function Switch Model Select TB2 Terminal Block Indoor Outdoor P B Powe
4. 19 PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK OLW uonepunoJ peuojou pedeus N Z eyelu p eq ueo Buldig slloq OLIN 8008 10 eoeds jo suolsu uuiq k Q fant ant Q x 5 EBI CX 2 3 Q 5 UUU 10 lpueH WI UUU pueH TEEN 10 lpueH 404 lpueH uolleoo FATWA 4015 Jo ooms you 8 2 29 6 3tiv13 edid GINO j z z z 8 5 88 9 3t4v 14 uono uuoo edid SYD 44614 y lul opis Ajddns jeog 1191 Ruue yey ZZE 104 iv 198 SUONOBUUOD euw L gt i 056 SOJON JO OLW WWO0 WWQOG 4800 Sejou PAO Sexe Z ily 99 8 NO eoeds N S VL MM g
5. SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block Power Supply CY1 CY2 Capacitor SW5 Switch Function Switch Model Select TB2 Terminal Block Indoor Outdoor P B Power Circuit Board SW6 Switch Model Select MC Motor for Compressor TB U V W Connection Termina U V W Phase SW7 Switch Function Switch MF1 MF2 Fan Motor TB L1 L2 L3 Connection Terminal L1 L2 L3 Power Supply SW8 Switch Function Switch 2184 Solenoid Valve Four Way Valve 1 Connection Terminal SW9 Switch Function Switch SV Solenoid Valve Bypass Valve TB P2 Connection Terminal SWP Switch Pump Down CH Crankcase Heater TB C1 Connection Terminal CN31 Connector_ Emergency Operation 63H High Pressure Switch TB N1 Connection Terminal 55 Connector Connection for Option TH3 Thermistor Outdoor Pipe X52A 52C Relay CNDM Connector TH6 Thermistor Outdoor 2 Phase Pipe N F Noise Filter Circuit Board Connection for Option Contact Input TH7 Thermistor Ambient LIt LI2 LIS NI Connection Terminal L1 L2 L3 N Power Supply CNM Connector A Control Service Inspection Kit TH32 Thermistor Comp Surface LO1 LO2 LO3 Connection Terminal Lt L2 L3 N Power Supply LED1 LED2 LED Operation Inspection Indicators LEV A Electronic Expan
6. we a gt gt sk dl gt emm 1 52 INDOOR z UNIT ue 53 teei cB NT oQ z TB1 RED RED POWER WHT 192 WHT SUPPLY 3N BLK 103 BLK 400V 50Hz BLU Ue GRN YLW 3 BLK WHT WHT OCH415G 2 PUHZ P100YHA2 UK
7. Connector Action by open short operation DE Types Switch Short Open Effective timing Connector CN31 Emergency operation Start Normal When power supply ON SW6 1 The black square m indicates a switch position Service Ref SW5 6 SW6 Service Ref SW5 6 SW6 RN mn SW6 4 owe DEI oss RE o Model select 123456 12345678 SW5 6 SW6 5 con EERE ARS SW6 6 125vHA3R2 IHREN mM 125YHAR z HHHHHR lB SW6 7 125VHA3R3 723456 12345678 125YHAR2 23456 12345678 140VHA3R2 ON Om OIN 140YHAR1 ON ON E s GE rnt cs gt tnit tovs 0 DEDE y Ou lors LOCO o la BN SW5 6 123456 12345678 100YHA2R1 23456 12345678 Special function a Low level sound priority mode Local wiring Unit enters into Low level sound priority mode by external signal input setting Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual Adding a commercial timer or on off switch contactor setting to the CNDM connector which is optional contactor for demand input located on the outdoor controller board enables to control compressor operation frequency The performance depends on the load of conditioned outdoor temperature
8. K Tt TT xx BOR Ss AV o E UUU 104 2 Ce a Hn b d UUU lpueH ejpueH uonoeuuoo FATWA 4015 JO oiled UUUS 4 your 8 e es e Suv 13 uonoeuuoo edid GINO 2 i gt z z z 8 9 88 5 8 74 uonoeuuoo edid svo 1uereDujeu 1 100pinQ 100pu 1u I OPIS Ajddns uue3 225 10 Suonoeuuo e gt 096 JO 0 LW 308 00 1340 uoo 1340 SOPH TEO 8 gev 99 EAT AO eoeds eowes X a ugy sse epis 1840 i oje spenueui uorpejeisur SI jo uoneue dx3 oiseq iuDieu uonepunojJ gt 3384 jfeoo paseyound 1snui pue sog slloq OLN uonepunoj UNA
9. SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block Power Supply RS Rush Current Protect Resistor SW4 Switch lt Test Operation gt TB2 Terminal Block lt Indoor Outdoor gt CY1 CY2 Capacitor Sw5 Switch lt Function Switch Model Select gt MC Motor for Compressor Power Circuit Board SW6 Switch lt Model Select gt MF1 Fan Motor TB U V W Connection Terminal lt U V W Phase gt SW7 Switch lt Function Switch gt 2154 Solenoid Valve Four Way Valve TB L1 L2 L3 Connection Terminal lt L1 L2 L3 Power Supply gt SW8 Switch Function Switch 63H Hign Pressure Switch TB P1 P3 Connection Terminal SW9 Switch lt Function Switch gt TH3 Thermistor lt Liquid gt X52CA 52C Relay SWP Switch lt Pump Down gt TH6 Thermistor lt 2 Phase Pipe gt N F Noise Filter Circuit Board CN31 Connector lt Emergency Operation gt TH7 Thermistor lt Ambient gt LIt LI2 LI NI Connection Terminal lt L1 L2 L3 N Power Supply SS Connector lt Connection for Option gt TH8 Thermistor lt Heat Sink gt LO1 LO2 LO3 Connection Terminal lt L1 L2 L3 Power Supply CNDM Connector Connection for Option TH32 Thermistor Comp Surface GD1 GD2 Connection Terminal Ground CNM Connector Connection for Option LEV A Linear Expansion Valve C B Controller Circuit Board LED1 LED2 LED Operation Inspection Indicators DCL Reactor SW1 Switch lt Manual Defrost Defect Hist
10. Indoor unit Capacity setting information Request code 163 Data display 0 0 See the table on the right Display Model setting state Display Model setting state 00 PSA RP GA PSH P GAH 20 01 21 PKA RP FAL 2 PKH P FALH 02 PEAD RP EA 2 GA PEHD P EAH 22 _ PCA APGA 2 PCH P GAH PLLRP BA PLA RP71 100 125BA2 03 SEZ KA VA 23 04 24 05 SLZ KA VA L 25 06 PCA RP HA 26 07 27 08 28 09 29 0 2 Ob 2b PKA RP GAL PKH P GALH 0 2 0 2d 0E 2E OF 2F PLA RP AA 10 30 11 PEA RP EA 31 PLH P AAH 12 MEXZ GA VA L 32 13 33 PKA RP HAL KAL 14 34 PEAD RP JA L 15 35 16 36 PLA RP AA2 17 37 PLA RP100BA3 140BA2 18 38 19 39 1A 3A 1b 3b 1C 3C 1d 3d 1E 3E 1F 3F Display Capacity setting state Display Capacity setting state 00 12 10 112 01 16 11 125 02 22 12 140 03 25 18 160 04 28 14 200 05 32 15 224 06 35 36 16 250 07 40 17 280 08 45 18 09 50 19 0A 56 1A 63 1b 0 71 1 0 80 1 0E 90 1E OF 100 1F Wireless pair No indoor control board side setting Request code 165 Data display 0 0 See the table on the right OCH415G Display Pair No setting state 00 No 0 01 No 1 J41 disconnected 02 2 J42 disconnected 03 No 3 41 42 disconnected
11. TEMP WITS DE ISP Hold down the button and press the button for 2 seconds Press the operation mode button 6 Press theTIMER MENU button Press theTIMER ON OFF button N Dot display MITSUBISHI ELECTRIC LANGUAGE NSS T Y e Js a oomo 5181 0 G Operation lock setting is not used Initial setting value All operation buttons except On Off button are locked All operation buttons are locked The automatic mode is displayed when the operation mode is selected Initial setting value The automatic mode is not displayed when the operation mode is selected The temperature range limit is not active Initial setting value The temperature range can be changed on cooling dry mode The temperature range can be changed on heating mode The temperature range can be changed on automatic mode Automatic filter elevation panel up down operation mode Not necessary to set this mode Refer to OPERATION MANUAL of Optional Parts Panel for details on operation Fixed air flow direction mode Not necessary to set this mode Refer to OPERATION MANUAL of indoor unit for details on operation T
12. A ddns semog inoxoouy 729 2 A PIC Md Ajddns samog biH K K Inoxoouy BOR 5 e exelut 3 s 8 8 UU umow 10 Cn 10j A R uolleoo uopoeuuoo FATWA dOLS JO Lx Jeued you 29 6 9 1 uono uuoo edid GINO 2 PPP P you 8 5 88 5 LS 3H v 13 uonoeuuoo edid Svo 5 zi JO Y uonoeuuoo SENIN EDS HUES ze 10 ejpueH 096 OLW 606 Sepu eO Sex rZ eoeds BIS oi 199 Z 6 B eo Ob o la Xy e NT i 9 iubieu 4 gt 8 gt epis g N Apeoo paseyound 89 9je SjenuewW y u lt lt lt lt lt CP wojeg pue Jee siayseM pue 5108 u uwous Si syrelap jo SUOPOSIIP UBD YM ale ss999e 0IAI S 10 oIseq gt gt
13. Ajwy Wun y aunoas papasu eoeds jo suoisuawiq 5 weep eu I tc SNOILOSYIC 9NIBIM ONldld v SL108 39vdS 39435 y 39085 3384 Orr EII gt gt gt O n n 15 OCH415G mm Uni 16 PUHZ P125VHA2 UK ge s H s 8 ejou ureid SL pe 022 oe 58 8 GEO Burdid g6 B e N lou idi e kh st du 2 RSV 26 26 gt 1noxoouy N Inoyoouy re 8 lou 5 lou 1 amp 9 S jnoyoouy gt noxoouy 2 2 or tp V Ot Guyunn juos ejou Bum A ddns noyoouyy l ejou
14. Minute OCH415G Test run elapsed time 0 120 95 0 120 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When 105 minutes 0 5 secs 0 5secs 2 secs n Minute The black square m indicates a switch position SW2 setting Display detail Explanation for display The number of connected indoor units 0 3 The number of connected indoor units are dis played Capacity setting display Displayed as an outdoor capacity code Capacity P100 Code P125 display P140 Outdoor unit setting information The tens digit Total display for applied setting Setting details Display details H P Cooling only 0 H P 1 Cooling only Single phase 3phase O Single phase 2 3 phase Code The ones digit display Setting details Display details Defrosting switch 0 Normal 1 For high humidity Example When heat pump 3 phase and defrosting normal are set up 20 is displayed Indoor pipe temperature Liquid TH2 1 39 88 Indoor 1 When the temperature is 0C or less 39 88 temperature are displayed by turns Indoor pipe temperature Cond Eva 39 88 TH5 1 When the temperature is 0 or less Indoor 1 temperature are displayed by turns 39 88
15. 39 88 temperature are displayed by turns Example When 15 C 0 5 secs 0 55 5 2 secs 15 gt t J Outdoor heatsink temperature TH8 on 40 200 error occurring When the temperature is 0 C or less 40 200 temperature are displayed by turns When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns OCH415G 99 The black square m indicates a switch position SW2 setting Display detail Explanation for display Discharge super heat on error occurring 0 255 SHd When the temperature is 100 C or more hundreds 0 255 digit tens digit and ones digit are displayed by turns Cooling TH4 TH6 VHA2 Example When 150 C Heating TH4 TH5 VHA3 R1 0 5 secs 0 55 5 2 secs 1 gt 50 gt E icd MORS VH t Heating TH32 TH5 YHAR1 YHAR2 YHA2 R1 Sub cool on error occurring SC 0 130 0 130 When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by Cooling TH6 TH3 turns Heating TH5 TH2 Example When 115 C 0 5 secs 0 55 5 2 secs 11 gt 15 gt Thermo on time until error stops 0 999 0 999 When it is 100 minutes or more hundreds digit tens digit and ones digit are dis
16. Indoor pipe temperature Liquid TH2 2 39 88 Indoor 2 When the temperature is 0 C or less 39 88 temperature are displayed by turns Indoor pipe temperature Cond Eva 39 88 TH5 2 When the temperature is 0 or less Indoor 2 temperature are displayed by turns 39 88 Indoor room temperature TH1 8 39 OCH415G 96 The black square m indicates a switch position SW2 setting Display detail Explanation for display Indoor setting temperature 17 30 ON Outdoor pipe temperature 2 phase TH6 39 88 39 88 When the temperature is 0 or less and temperature are displayed by turns Outdoor outside temperature TH7 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns Outdoor heatsink temperature TH8 40 200 40 200 When the temperature is O C or less and temperature are displayed by turns When the thermistor detects 100 C or more hundreds digit tens digit and ones digit are displayed by turns Discharge superheat SHd 0 255 0 255 When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by Cooling TH4 TH6 VHA2 turns Heating TH4 TH5 VHA3 R1 VHA4 YHAR1 YHAR2 YHA2 R1 freni 2 u VHASR
17. eui uwous 559008 99 AJ08 10 p p u eoeds jo suoisueuiq eoeds I SI S rejop jo uoneue dx3 ejduiexe orseq smoys urejDelp eu SNOLLO3uId 9NIdIWSNIdId t 51108 80795 39IAH3S ey 39vds 3344 18 OCH415G mm Uni aqa svi SL ozz 0 es 2 inoyoouy aloy noyoouy inn wm 26 t SS ee IN jou 0024 n e o ET o y qe N Qe noysouy LP ejou Buidid woyog e 8 k gt Or Sr Or 92 SV OP 10024 noxoouy72 z Gnoyoouy 9 lou Ajddns lou Bunyuna 14614 aloy fiy lou 1emog inoyoouyzz z lou Ajddns 1uo44 Ss eyeq jnoyoouy
18. 2 secs Compressor integrating operation times 0 9999 07 9999 When it is 100 hours or more hundreds digit tens digit and ones digit are displayed by turns Example When 2450 hours 245 x 10 hours 0 5 secs 0 5secs 12 45 gt 2 secs Compressor operating current 0 50 0 50 Omit the figures after the decimal fractions Compressor operating frequency 0 255 0 255 When it is 100Hz or more hundreds digit tens digit and ones digit are displayed by turns Example When 125Hz 0 5 secs 0 5secs 1 gt 25 gt 2 secs LEV A opening pulse 0 480 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Example When 150 pulse 0 5 secs 0 5secs 50 gt 2 secs Error postponement code history 1 of outdoor unit OCH415G Postponement code display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in case of no postponement 94 Code display SW2 setting Display detail The black square m indicates a switch position Explanation for display Operation mode on error occurring Operation mode of when operation stops due to error is displayed by setting SW2 like
19. affixed near each wiring diagram Required amp 2 Indoor unit Electic heater for the indoor and outdoor units control board For models with Outdoor unit DIP switch settings when heater using separate indoor unit outdoor unit Indoor unit power supplied from outdoor unit T power supplies only when shipped from factory N Set the SW8 3 to ON There are three types of labels labels A B and C Affix the appropriate labels to the units according to the wiring method If the indoor and outdoor units have separate power supplies change the connections of the connectors as shown in the following 3078 MOTNSA figure Connectors 2 i Psi Indoor unit control board Separate indoor unit outdoor unit power supplies Indoor unit model RP35 140 Indoor unit power supply N single 50 Hz 230 V Indoor unit input capacity Main switch Breaker 16A Indoor unit power supply 2x Min 1 5 Indoor unit power supply earth 1x Min 1 5 Indoor unit Outdoor unit 2x Min 0 3 g iN ESE 7 Indoor unit Outdoor unit earth Remote controller Indoor unit 2 x 0 3 Non polar Indoor unit L N AC 230 V Indoor unit Outdoor unit S1 S2 Indoor unit Outdoor unit S2 S3 Circuit rating DC24 V Remote controller Indoor unit DC
20. Gnospouy ie d Ig lou Buidid woyog lou a IET a je Mor M90031 noxpouy 226 2 ov SP 0v SY OY aou6uxunn io ejou Ajddns noyoouyy Inoyoouyz 2 2 19709999 lou uun 14614 qnoyoouy lou Ajddns samog Buidid inoxoouy 2 2 LE 8 ejou Ajddns samog a104 Lu 0 7 jnoyoouy I T j e B SXeIU AY RSEN C1 191008 8 8 UUU epuen q 10 o pueH NANA 104 uoneool uonoeuuoo FATWA dOLS Jo Jeued sog 8 29 6 8474 uonoeuuoo edid qinor AAAA you 8 5 88 51 amp 3H v 14 uono uuoo edid Sy misi S9 ON JO 1 Buum 100pjnojJ00puJ 1u 14 3 Buum Ajddns 1603 361 UUS uonoeuuoo y lul ANY OPIS 205 Buou 104 lpueH 056 uonepuno3 eoeds adie S lou EAC x 21 2 077 YY er Ies 44 I TONES TENE Naa 9 22 Lxxx 74 H 8 a qum 1ubieu y0q uonepuno 4 aje CN CN o at E e Aifeooj peseupund 5 sul y lt lt lt lt pue 1291 aq pue slog mo
21. Smooth maintenance 2 3 Ref address B Cool Sub cool 3T OU TH4 temp 68 C OU TH6 temp 38 C OU TH7 temp 38 C Return v Page 5 E Smooth maintenance 3 3 Navigating through the screens Refaddress 8 Cool i IU air temp 28 C To go back to the Main menu button IU HEX temp 18 e To return to the previous screen 5 button 128 Hr Return Y Page Page A OCH415G 114 13 1 2 PAR 21MAA Reduces maintenance work drastically Enables you to check operation data of the indoor and outdoor units by remote controller Furthermore use of maintenance stable operation control that fixes the operating frequency allows smooth inspection even for inverter models Smooth Mainte nance Function Discharge temperature 64 C Conventional inspection work MITSUBISHI ELECTO Outdoor unit Indoor unit 7 OUTDOOR 54 Remove the Measure the intake air temperature ooo Ji TEMP ON OFF Easy maintenance information unit A a rr Measure the discharge L Measure the outside air temperature temperature Accumulated operating Heat exchanger Intake air time x10 hours temperature C temperature C Number of ON OFF Discharge Heat exchanger HH A SSS times x10
22. Check method of DC fan motor fan motor outdoor controller circuit board Notes High voltage is applied to the connecter CNF1 2 for the fan motor Pay attention to the service Do not pull out the connector CNF1 2 for the motor with the power supply on It causes trouble of the outdoor controller circuit board and fan motor Self check Symptom The outdoor fan cannot turn around Fuse check Check the fuse F5 on outdoor controller board Did the fuse blow V Wiring contact check Contact of fan motor connector CNF1 2 Replace outdoor controller board C B Ge fan motor 2 v Is there no contact failure gt gt gt V Yes Power supply check Remove the connector CNF1 2 Measure the voltage in the outdoor controller circuit board TEST POINT Voc between 1 and 4 of the fan connector Voc DC250 330V TEST POINT Vcc between 5 and 4 of the fan connector DC15V v Is the voltage normal gt gt Yes gt Replace the fan motor P V V Yes OK Check the operation of fan END Replace outdoor controller board Y NG T C Replace outdoor controller board OK Check the operation gt END NG Replace the fan motor OCH415G 72 11 7 HOW TO CHECK THE COMPONENTS lt Thermistor feature chart gt
23. Strainer 2 Unit mm inch Refrigerant flow in cooling Refrigerant flow in heating Service High pressure port protect switch check Outdoor heat exchanger 4 way valve Thermistor TH6 Thermistor Thermistor A TH32 Distributor Compressor 100 100 Strainer Strainer PUE i Linear expansion valve PUHZ P140VHA3R2 UK PUHZ P140VHA3R3 UK PUHZ P140YHA UK PUHZ P140YHAR1 UK PUHZ P140YHAR2 UK Service port Bypass valve check 4 way High pressure protect switch Thermistor TH6 Distributor Thermistor TH3 Thermistor Capillary tube N TH32 eu f4 0 3 0x L200 x2 Compressor T Strainer Strainer 100 100 Linear expansion valve 36 10 1 REFRIGERANT COLLECTING PUMP DOWN When relocating or disposing of the indoor outdoor unit pump down the system following the procedure below so that no refriger ant is released into the atmosphere Turn off the power supply circuit breaker Connect the low pressure valve on the gauge manifold to the charge plug lowpressure side on the outdoor unit Close the liquid stop valve completely Supply power circuit breaker When power is supplied make sure that CENTRALLY CONTROLLED is not displayed on the remote controller If CEN TRALLY CONTROLLED is displayed the refrigerant collecting pump
24. ic oo 477 1 Ley Lx ely dC IC IC 2C 2 a 21 PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK a x UUUU 10 U LJ s1 re UUU ao ejpueH L le 104 uonoeuuoo 3A1VA 4015 JO Lx jeued 1 g zs 6 3t v1 uonoeuuoo edid armor 1ueieBujeu 2 51551 RR C __ 8 5 88 8 8 4 uonoeuuoo edid svo Bum 14614 OPIS A ddns 97 puuueuue3 zeg BulAow 104 Suono uuoo 056 5 S9 ON OLW uonepuno 00 1340 59100 BAO 9ExZ L Z Jv iv 95 8 1000 exeds sames x 2 014800 9 0 ME 85 yglul V 5 lt
25. 65 xi 1 6 i1 31 E LEV A CNVMNT CNMNT g ED WD WHT wan 5 E Anes 2 1 3 8e QE 5 i 63H H 1 amp lez YLW WHT CN4 aS x WHD WHT 1 7 12 TRANS 701 29999 Be 1 S CNDC 2 68 ale PNK _ 15 F2 ies t t t BE WHT x x x 5 58 2 T T T sn CNS F1 F4 3 3 3 1 WHT s lt Gan ao 9 Gy MB ss 3 1 3 4 e 91 WHT P125 P140 only 21S4 SV X1 MODEL SELECT X3 CH The black square IB indicates a switch position x3 MODEL SW6 SW5 6 2 e ON ON N o MARAEA SE c HAHHA 12345678 123456 5555 sesv ore BR M 5 HHHEPB 0000000 12345678 123456 1 7 ON ON WHT TEW 140Y OFF al ila OFF W BLK w MC 12345678 123456 2 X2 SW5 1 to 5 Function Switch 2 gt gt o o TB2 3 ef Pee 1 z amp RED INDOOR 7 UNIT S i 53 B 1 1 a 2534 oQ 2 CNCT CNAC2 WHT 1 T RED 1f 2 1 3 RED TB1 101 RED ME RED POWER WHT 192 SUPPLY 3N BLK 103 BLK 400V 50Hz T BLU T GRN YLW cs M ig T H 1 601 cnoc HE 3 1 ape PNK BLU E 5 ele ACLA m fYYY
26. SW7 1 Demand switch ON Setting of demand OFF 0 Operation stop Control ON 50 3 OFF ON 7596 N Dip switch Max Hz setting cooling Max Hz cooling x 0 8 Normal Max Hz setting heating Max Hz heating x 0 8 Normal No function Defrost Hz setting For high humidity Normal No functi No functi No functi No functi 3 4 5 6 1 2 3 1 2 Function switch Normal Always No function PN Push switch Pump down Normal Under suspension 2 Power failure automatic recovery can be set by either remote controller or this DIP SW If one of them is set to ON Auto recovery activates Please set Auto recovery basically by remote controller because not all units have DIP SW Please refer to the indoor unit installation manual 3 SW7 1 2 are used for demand control SW7 1 2 are effective only at the demand control Refer to next page Special function b 4 Please do not use SW7 3 5 ordinarily Trouble might be caused by the usage condition OCH415G 89 2 Function of connectors and switches
27. gt Service menu 1 2 Input maintenance info Function setting Check Self check Main menu 5 ee J j With the F1 or F2 button enter the refrigerant address and press the V button Self check Ref address B Select x Address 8 Error code unit number attribute will appear will appear if no error history is available Self check Ref address 8 Error P4 Unt 1 Grp IC Return Reset When there is no error history Self check M NET address 1 Contact Return 5 Resetting the error history Self check Press the 4 button Reset on the screen that shows the error history gt A confirmation screen will appear asking if you want to delete the error history Press the F4 button OK to delete the error history If deletion fails Request rejected will appear Unit not exist will appear if no indoor units that are correspond to the entered address are found Navigating through the screens To go back to the Main menu button To return to the previous screen 5 button OCH415G 44 Ref address 8 Delete error history Self check Ref address 8 Error history deleted Return 11 3 2 Remote controller check lt PAR 31MAA gt
28. pue eui u uwous OL Hog 17 PUHZ P100VHA3R1 UK peuojou pedeus N Z yelul ale 859008 5 10 luu tun ayy asea d p p u oeds jo suoisueulig smous 941 SNOILOSHIC 9NIHIM ONldld S1108 30795 39IAU3S 39 3384 OCH415G mm 2 ce9 s Sri Sri Sri 022 0 o p N ajoy Buidid woyog A d Je o0 Buidid eo 12 14014 S Burow 104 joued Buum 46 Ajddns samog 41 uonoeuuoo puua queg 096 OLW Hog Sejou LAO 9 X 21 0 EN 99 Bupuosiq 1984 5 009 OLW Sejou pedeus N Z PUHZ P125VHA3R1 UK PUHZ P140VHA3R1 UK 104 epis 99 26 jnoxoouy
29. Weight kg Ibs 99 218 Refrigerant R410A Charge kg Ibs 4 5 9 9 Oil Model E 0 87 FV50S REFRIGERANT PIPING Pipe size O D Liquid mm in 9 52 3 8 Gas mm in 15 88 5 8 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit OCH415G Height difference Max 30m Piping length Max 50m Service Ref PUHZ P100YHA UK PUHZ P100YHAR1 UK Mode Cooling Heating OUTDOOR UNIT Power supply phase cycle voltage 3phase 50Hz 400V Running current 4 78 5 05 Max current 13 External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model TNB220FLCMT Motor output 2 9 Starter type Inverter Protection devices HP switch Discharge thermo Comp surface thermo YHAR1 Crankcase heater w Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 1 Fan motor output kW 0 060 Airflow m min CFM 60 2120 Defrost method Reverse cycle Noise level Cooling dB 50 Heating dB 54 Dimensions mmi in 950 37 3 8 D mmi in 330 30 13 1 3 16 H mmi in 943 37 1 8 Weight kg Ibs 77 170 Refrigerant R410A Charge k
30. Distributor Strainer 40 Compressor 100 100 Refrigerant LIQUID pipe Strainer Strainer 9 52mm 93 8 T 5 Stop valve Linear expansion valve with service port PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA3 UK PUHZ P140VHA3 UK PUHZ P125VHA3R1 UK PUHZ P140VHA3R1 UK Service port Bypass valve check Stop valve 4 way High pressure protect switch valve Thermistor 50 Refrigerant GAS pipe Strainer 15 88mm d5 8 F 9 L lt TH6 Distributor Service port check Thermistor TH3 Capillary tube 4 0x453 0x L200 x2 Strainer 40 Refrigerant LIQUID pipe ve Accumulator 9 52mm 93 8 P Strainer Strainer 100 100 Linear expansion valve Stop valve with service port OCH415G 35 PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK Stop valve 50 Refrigerant GAS pipe 15 88mm 95 8 Service port check Accumulator Strainer 40 Refrigerant LIQUID pipe 9 52mm 93 8 I Stop valve with service port PUHZ P125VHASR2 UK PUHZ P125VHA3R3 UK PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P125YHAR2 UK Stop valve 50 Refrigerant GAS pipe 15 88mm 955 8 Service port check Strainer 40 Accumulator Refrigerant LIQUID pipe 9 52mm 3 8 Stop valve with service port OCH415G Strainer
31. ON ON ON ON ON ON ON ON Display during error postponement Postponement code is displayed when compressor stops due to the work of protection device Postponement code is displayed while error is being postponed 3 When the display blinks Inspection code is displayed when compressor stops due to the work of protection devices gt CO G PO o Contents to be inspected During operation Abnormal high pressure 63H operated Abnormal high discharging temperature shortage of refrigerant Open short circuit of discharging thermistor TH4 or TH32 Open short of outdoor unit thermistors TH3 TH6 TH7 and TH8 Abnormal temperature of heatsink Abnormality of power module Abnormality in outdoor fan motor Overheat protection Compressor overcurrent interruption When Comp locked Inspection unit Current sensor error Outdoor unit Abnormal low pressure Indoor unit 1 Compressor overcurrent interruption Indoor unit 2 Abnormality of indoor units Abnormality of refrigerant Communication error of M NET system Indoor unit 3 Contents to be inspected When power is turned on 63H connector yellow is open Indoor outdoor communication error Signal receiving error Outdoor unit Indoor outdoor communication error Transmitting error Outdoor unit Miswiring of indoor outdoor unit conn
32. 25 50 75 100 120 Temperature Linear expansion valve 1 Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal from the outdoor controller board Valve position can be changed in proportion to the number of pulse signal lt Connection between the outdoor controller board and the linear expansion valve gt Outdoor controller board 4 Orange 3 Output 4 5 2 Linear expansion valve operation all the way 4 Pulse number gt G 2 1 E Z o a I 1 1 gt Close Open 1 1 1 J I 500 pulse 1 1 1 1 1 Extra tightening about 32 pulse OCH415G gt 1 gt 8 gt 8 gt 1 gt 7 gt 2 gt 4 gt 5 gt 3 gt 6 2 gt 7 gt 6 gt gt 5 gt 4 Opening valve 8 Closing a valve 1 The output pulse shifts in above order When linear expansion valve operation stops all output phase become OFF When the switch is turned on 700 pulse closing valve signal will be sent till it goes to point in order to define the valve position The pulse signal is being sent for about 20 seconds When the valve moves smoothly there is no sound or vibration occurring from the linear expansion valve however when the pulse number moves from to
33. 3 WHT WHT 1 7 12 2 TRANS 101 79 ae CNDC 2 SE 310 PNK E F2 F3 t t SI CNAC e 2 5 2 WHT x lt x E 510 0722702 CNS F1 F4 12g al 1 al 1 at 1 ss wm GRN BLU GRY WHT 2154 1 MODEL SELECT The black square W indicates a switch position H8 MODEL SW6 SW5 6 2 ON ON 2 7 2 100Y OFF OFF EHE P B L 12345678 123456 i TTE r 2 SWS 1 to 5 Function Switch 6 66 1212 71 2 CN6 CN5 CN2 CN4 WHT RED WHT L3OUT TB L3 BLK H5 4 BLK X52CB 774 RED t X52CA RED sl gg L a ojo 5 TB L1 RED d TB2 5 ki gt ed Eae 51 F e z a uum 52 5 Feet et INDOOR z pos S3 7 DCL PSU oQ 24 TB1 er Me L1 RED RED POWER oe Lo WHT LO2 wur SUPPLY CR 3N BLK 103 BLK 400V 50Hz 7 L3 i BLU N nay em GRN YLW 29 415 9 WIRING SPECIFICATIONS 9 1 FIELD ELECTRICAL WIRING power wiring specifications Outdoor unit model P100 125V P140V P100 125 140Y Outdoor unit power supply N single 50 Hz 230 V N single 50 Hz 230 V 3N 3ph 4 wires 50Hz 400 V Outdoor unit input capacity Main switch Breaker 32A 40A 16A Outdoor unit power supply 3 x Min 4 3 x Min 6 5 x Min 1 5 Indoor unit Outdoor unit 3 x 1
34. HOISE i i ee 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz PUHZ P140VHA2 UK PUHZ P140VHA21 UK PUHZ P140VHA3 UK PUHZ P140VHA3R1 UK PUHZ P140VHA3R2 UK PUHZ P140VHA3R3 UK PUHZ P140YHA UK MODE SPL dB LINE PUHZ P140YHAR1 UK COOLING 52 o PUHZ P140YHAR2 UK HEATING eS 90 I I 1 z i i i j j S 80 9 m 70 _ 60 u 50 2 B i 40 x a aa 5 8 30 3 2 5 20 APPROXIMATE 3 mer F THRESHOLD OF L J I gt HEARING FOR 4 3 s INC 20 CONTINUOUS 4 l NOISE E i O 10 T T 1 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES Hz 6 4 STANDARD OPERATION DATA Representative matching PLA RP100BA PLA RP100BA PLA RP125BA PLA RP140BA 2 Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 9 400 11 200 9 400 11 200 12 300 14 000 13 600 16 000 Input 3 12 3 28 3 12 3 28 4 09 4 11 4 98 5 21 Indoor unit PLA RP100BA PLA RP100BA PLA RP125BA PLA RP140
35. Replace outdoor power circuit board P VHA20 VHAS R1 R2 VHA4 Replace outdoor power circuit board P VHA3R2 VHA4 Replace outdoor noise filter circuit board P VHA20 VHA3R1 amp P YHA R1 R2 YHA2 R1 Check RS wiring P YHA R1 R2 YHA2 R1 Q Replace RS P YHA R1 R2 YHA2 R1 Check CB or CB1 CB2 wiring P VHA2 1 VHA3 R1 R2 VHA4 4 P YHA R1 R2 Check CN wiring P VHA2 y VHA3 R1 R2 VHA4 Replace outdoor controller circuit board P VHA2 1 VHA3 R1 R2 VHA4 Input current sensor error L1 phase open error Decrease in input current through outdoor unit to 0 1A only if operation frequency is more than or equal to 40Hz or compressor current is more than or equal to 6A L1 phase open P YHA R1 R2 YHA2 R1 Disconnection or loose connection between TB1 and outdoor noise filter circuit board P YHA R1 R2 YHA2 R1 Disconnection or loose connection of CN5 on the outdoor power circuit board CNCT on the outdoor noise filter board P YHA R1 R2 YHA2 R1 Defective ACCT AC current trans on the outdoor noise filter circuit board P YHA R1 R2 YHA2 R1 Defective input current detection circuit of outdoor power circuit board Defective outdoor controller circuit board Check the field facility for the power supply P YHA R1 R2 YHA2 R1 Check the wiring between TB1 and outdoor noise filter circuit board P YHA R1 R2 YHA2 R1 Check CN5 CNCT wiring P YHA R1 R2
36. Converse connection of extension pipe on plural units connection Converse wiring of indoor outdoor unit connecting wire on plural units connection Defective detection of indoor room temperature and pipe lt condenser evaporator gt temperature thermistor Stop valve is not opened completely Check pipe liquid or condenser evaporator temperature with room temperature display on remote controller and outdoor controller circuit board Pipe liquid or condenser evaporator gt temperature display is indicated by setting SW2 of outdoor controller circuit board as follows Conduct temperature check with outdoor controller circuit board after connecting A Control Service Tool PAC SK52ST Temperature display of indoor condenser evaporator pipe Indoor 1 1 2 3 4 5 6 Temperature display of indoor liquid pipe Indoor 1 OFF Temperature display of indoor con evaporator pipe Indoor 2 1 2 3 4 5 6 Temperature display of indoor liquid pipe Indoor 2 OFF A Control Service Tool 5 2 setting Check converse connection of extension pipe or converse wiring of indoor outdoor unit connecting wire 57 Error Code Abnormal points and detection method Case Judgment and action Abnormal refrigerant circuit During Cooling Dry or Auto Cooling operation when the following are regarded as failures when detected for one second a
37. Low temperature thermistors Thermistor lt Outdoor pipe gt lt Liquid gt TH3 Thermistor lt Outdoor 2 Phase Pipe gt lt 2 Phase Pipe gt TH6 Thermistor lt Outdoor gt lt Ambient gt TH7 Thermistor RO 15kQ 3 B constant 3480 2 1 1 Rt 15exp 3480 2734 273 oC 15kQ 30 C 4 3kQ 10C 9 6kQ 40 C 3 0kQ 20C 6 3kQ 25C 5 2kQ Medium temperature thermistor e Thermistor Heat Sink TH8 VHA2 VHA2 VHA3R1 YHA2 YHA2R1 Thermistor R50 17kQ 296 B constant 4150 3 1 1 Rt 17 4150 573 323 oC 180kQ 25C 50kQ 50 C 17 70C 8kO 90 C 4kQ High temperature thermistor Thermistor lt Discharge gt TH4 VHA2 VHA21 VHA3R1 Thermistor Comp Surface TH32 VHASR2 VHA3R3 VHA4 YHA YHAR1 YHAR2 YHA2 YHA2R1 Thermistor R120 7 465kQ 2 B constant 4057 2 1 1 Rt 7 465exp 4057 573 393 20C 250kQ 70 C 34kQ 30C 160kQ 80 C 24kQ 40C 104kQ 90 C 17 5 70 100C 13 0kQ 60C 48kQ 1107 9 8kQ OCH415G 73 50 Resistance wo 20 10 0 10 20 30 40 50 Temperature 200 150 100 o cc 50 0 25 50 75 100 125 Temperature C 500 400 300 25 Resistance 100
38. VHA3R2 Electric power is not supplied to outdoor controller circuit board a Disconnection of connector CNDC Disconnection of reactor DCL or ACL Disconnection of outdoor noise filter circuit board or parts failure in outdoor noise filter circuit board As for VHA2 VHA3 R1 it is especially needed to check the resistance RS1 on the noise filter circuit board Defective outdoor power circuit board Defective outdoor controller circuit board Check following items a Power supply breaker b Connection of power supply terminal block TB1 c Connection of power supply terminal block TB1 Check following items a Connection of power supply terminal block TB1 b Connection of terminal on outdoor power circuit board Disconnection of connector TABT or TABS Ll or NI VHASR2 R3 VHA4 Refer to 11 9 G Check connection of the connector CNDC on the outdoor controller circuit board Check connection of the connector CNDC on the outdoor power circuit board V the noise filter Y Refer to 11 9 Check connection of reactor DCL or ACL Check connection of L1 and L2 on the active filter module ACTM VHA2 VHA3 R1 DCL1 and DCL2 on the power circuit board VHA3R2 R3 a Check connection of outdoor noise filter circuit board b Replace outdoor noise filter circuit board Refer to 11 9 Replace outdoor power circuit board C Replace outdoor cont
39. 15 DISASSEMBLY PROCEDURE PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 1 Removing the service panel and top panel Figure 1 Top panel fixing screws 1 Remove 3 service panel fixing screws 5 x 12 and slide coe P the hook on the right downward to remove the service panel 2 Remove screws 2 for front 3 for rear 5 x 12 of the top panel and remove it Service panel HI gt Service panel Fan grille HN ii fixing screws Grill fixing screws 2 Removing the fan motor MF1 Photo 1 Photo 2 1 Remove the service panel See Figure 1 Front panel Fan 2 Remove the top panel See Figure 1 Propeller Fan motor fixing screws MET 3 Remove 5 fan grille fixing screws 5 x 12 to detach the y fan grille See Figure 1 4 Remove a nut for right handed screw of M6 to detach the propeller See Photo 1 5 Disconnect the connector CNF1 on the controller circuit board in the control box 6 Loosen 3 clamps on the separator and motor support then unbind the lead wires 7 Remove 4 fan motor fixing screws 5 x 20 to detach the fan motor See Photo 2 x Fan motor Front panel fixing screws fixing screws 3 Removing the control box E 1 Remove the service panel See Figure 1 Photo
40. 15 88 5 8 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit OCH415G Height difference Max 30m Piping length Max 50m Service Ref PUHZ P125VHA2 UK PUHZ P125VHA21 UK PUHZ P125VHA3 UK PUHZ P125VHA3R1 UK PUHZ P125VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P140VHA3R3 UK PUHZ P140VHA2 UK PUHZ P140VHA2 UK PUHZ P140VHA3 UK PUHZ P140VHA3R1 UK PUHZ P140VHA3R2 UK Mode Cooling Heating Cooling Heating cc o Q Power supply phase cycle voltage Single 50Hz 230V Running current 17 37 16 74 22 48 21 31 Max current 28 29 5 External finish Munsell 5Y 7 1 Munsell 7 8 1 1 VHA3R1 R2 R3 Refrigerant control Linear Expansion Valve Compressor Hermetic Model TNB306FPGM TNB306FPGMT VHA3R3 Motor output 3 4 3 9 Starter type Inverter Protection devices HP switch Discharge thermo Comp surface thermo VHA3R2 R3 Crankcase heater w 30 Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 2 Fan motor output kW 0 060 0 060 Airflow m min CFM 100 3 530 Defrost method Reverse cycle Noise level Cooling dB Heating dB Dimensions mm in 950 37 3 8 D mm in 330 30 13 1 3 16 H mm in 1 350 53 1 8
41. F2 button and press the button Test run Input maintenance info Function setting Check Self check Main menu 5 1 Fl Fe 4 2 Select Error history with the F1 F2 button and press the button Check menu 1 1 gt Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Request code Service menu E Error history 8 Select Error history from the Check menu and press the button to view up to 16 error history records Four records are shown per page and the top record on the first page indicates the latest error record Error history 1 8 Error Unt dd mm yy 8 1 12 04 08 12 34 8 1 12 00 08 12 34 E0 8 1 12 04 08 12 34 8 1 12 04 08 12 34 Check menu W Page 1 C Fl Fe F4 Deleting the error history To delete the error history press the F4 button Delete on the screen that shows error history A confirmation screen will appear asking if you want to delete the error history Cw Press the F4 button OK to delete the history g Error history deleted will appear on the screen Press the button to go back to the Check menu screen OCH415G 41 Error history Delete error history Error history Error history deleted Check menu 11 2 3 Test run for wir
42. Four way valve Solenoid valve pay pay supplied to compressor P C 4 0 Relay output state 1 ON Operation mode 2 ON 3 ON ON t d peration mode 4 ON Display Operation mode 5 ON ON 0 STOP FAN 6 ON ON C COOL DRY 7 ON ON ON H HEAT 8 ON d Defrost A ON ON Indoor unit Control state Request code 50 Data display Display State ae klk 0 Normal 1 Preparing for heat operation ear Unit No 4 state 2 Unit No 3 state 3 Unit No 2 state 4 Heater is ON 5 Anti freeze protection is Unit No 1 state 6 Overheat protection is ON 7 Requesting compressor to turn OFF E There are no corresponding units Outdoor unit Control state Request code 51 Data display State 0 0 0 0 Normal 0 0 0 1 Preparingforheatoperation O O 0 2 Defrost Compressor Frequency control state Request code 52 Daia display Frequency control state Discharge temperature Condensation temperature Anti freeze Heatsink temperature Display 010 overheat prevention overheat prevention protection control overheat prevention L Frequency control state 0 Frequency control state 1 Controlled 2 Controlled Frequency control state D 3 Controlled Controlled 4 Controlled Display Current limit control 5 Controlled Controlled 0 No current limit 6 Controlled Controlled Primary current limit control is ON 7 Controlled Controlled Controlled 2 Secondary curr
43. OFF WEN g S 5 574 12345678 123456 LIN S1 52 53 TB1 ON L 125V oFF LL E 12345678 123456 x PY og on on INDOOR 140V OFF 4 1 e UNIT 12345678 123456 Y X2 SW5 1 to 5 Function Switch POWER SUPPLY N 230V 50Hz 24 PUHZ P100VHA4 UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block lt Power Supply Indoor Outdoor gt P B Power Circuit Board SW9 Switch lt Function Switch gt MC Motor for Compressor Connection Terminal lt U V W Phase gt SWP Switch Pump Down MF1 Fan Motor LI Connection Terminal lt L Phase gt CN31 Connector lt Emergency Operation gt 21S4 Solenoid Valve Four Way Valve NI Connection Terminal lt N Phase gt 55 Connector lt Connection for Option gt 63H High Pressure Switch DCL1 DCL2 Connection Terminal lt Reactor gt CNDM Connector lt Connection for Option gt TH3 Thermistor lt
44. PUHZ P140VHA3R1 UK gt PUHZ P140VHA3R2 UK Thermistor lt Discharge TH4 gt has been changed to Thermistor lt Comp Surface TH32 gt Electrical parts Controller circuit board C B Power circuit board P B Noise filter circuit board N F and Active filter mod ule ACTM inclucling P B have been changed PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P125VHA3 UK gt PUHZ P125VHA3R1 UK PUHZ P140VHA3 UK gt PUHZ P140VHA3R1 UK Fan grille has been changed Structural parts have been changed Munsell 5Y 7 1 3Y 7 8 1 1 PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P125VHA2 UK PUHZ P125VHA3 UK PUHZ P140VHA2 UK PUHZ P140VHA3 UK OUTDOOR CONTROLLER BOARD C B has been changed Corresponding to the additional combination between PKA RP HAL KAL PCA RP KA and PEAD RP JA L In case of UL error the compressor may be damaged if the unit is restarted by remote controller To avoid the damage unit has the system that is not able to be restarted unless the power is turned OFF once PUHZ P125VHA2 UK PUHZ P125VHA21 UK PUHZ P140VHA2 UK PUHZ P140VHA21 UK 4 WAY VALVE and COIL 21S4 have been changed OCH415G 2 2 REFERENCE MANUAL INDOOR UNIT S SERVICE MANUAL Model name Service Ref Service Manual No PLA RP50 60 71 100 125 140BA PLA RP140BA2 PLA RP50 60 71 100 125 140BA UK PLA RP50 60 7 1 100 125 1 40BA 2 UK PLA RP50 60 71BA1 UK PLA RP50 60 71BAR3 UK PLA RP140
45. When the backlight is off pressing any button turns the backlight on and it will stay lit for a certain period of time depending on the screen Function button F1 Main display Press to change the operation mode Main menu Press to move the cursor down Function button F2 Main display Press to decrease temperature Main menu Press to move the cursor up 9 Function button F3 Main display Press to increase temperature Main menu Press to go to the previous page Function button When the backlight is off pressing any button turns the backlight on and does not perform its function except for the ON OFF button OCH415G Main display Press to change the fan speed Main menu Press to go to the next page 108 Menu structure of PAR 31MAA gt P MENU Main menu button Press the Move the cursor to the desired item with the F1 and F2 Vane Louver Vent Lossnay High power Timer On Off timer Auto Off timer Filter information Error information Weekly timer Energy saving Auto return Schedule T Night setback Restriction Temp range T Operation lock Maintenance T Manual vane angle Auto descending panel Initial setting Main Sub Clock Main displa
46. gt gt gt 008 Suonoeuuoo Ku jun y ino s esee d eoeds jo suoisuawig P swous eu log uonepunoJ EIU petpiou padeus nz SNOLLOSYIC ONIMIM ONIdld 5108 NOLLWANNOS 30785 JOINYAS wun y JOVdS 3383 TON STEQN SF ayelu rrrrr A A j IIIII 22222 4156 mm Uni 5 c Sri cvi se ozz 0 TIED 99 26 ds 99 Gnoyoouy lou ee _ 26 N 8 SG Qo Qu jou Buidid 1uo14 D T DAR I a N ath Teo 0 T Z6 65 Ioyoouyj 29 Io fe aloy Buidid woyog RS a E 2 anoyoouy ss a jnoyoouy El y or ov i 92 Sv O ajoy 10024 noxoouxzz z 1noxoou mouy 1 29 7 lou Ajddns amod lou Pani iin 9104 1 lou 5 Duidid 1004 S 2 2 Y lou Ajddns joH jnoyoouy
47. gt 9 a Q 011940 wig Jeno 1340 J I te s og ave epis 5 juBieu y0q uonepunoJj E 1894 5 m 009 Em peseuound S u pue 1081 1 1snui Sjeusew pue sijog wojeq eu uMous SI 1ejnonjed jo uoneue dx3 21524 weep SNOLLOSUIG 9NIHIM ONIdld v 51108 NOILVGNNOS JOWVdS 99845 un y 39vds 3344 OCH415G mm Uni 20 869 0 igi 56 59 9jou noxoouy N noxoou lou eeu g6 nS 99 6t 88 8 2 aloy oud dos 5 rm He fu 2 1 Z6 T7 26 gt gt
48. How to wire lt Low level sound priority mode circuit gt Insulate this point securely as Adaptor for external this is not used signal input PAC SC36NA Outdoor unit Purchased locally controller board I Relay gt I supply swt CNDM SWi SwWich X Relay Contact spec DC1mA Max 10 m including local wiring 1 Make the circuit as shown above with Adaptor for external signal input PAC SC36NA 2 Turn SW1 to on for Low level sound priority mode Turn SW1 to off to release Low level sound priority mode and normal operation 6 On demand control Local wiring Demand control is available by external input In this mode power consumption is decreased within the range of usual 0 100 Basically the wiring is same with a Connect an SW 1 which is procured at field to the between Orange and Red 1 and 3 of the Adaptor for external signal input PAC SC36NA and insulate the tip of the brown lead wire It is possible to set it to the following power consumption compared with ratings by setting the SW7 1 2 SW7 1 SW7 2 PPO on OFF OFF 0 Operation stop ON OFF 50 OFF ON 75 OCH415G 90 lt Display function of inspection for outdoor unit gt The blinking patterns of both LED1 green and LED2 red indicate the types of abnormality when it occurs Types of abnor mality can be indicated in details by connecting an optional part A Cont
49. If operations cannot be completed with the remote controller diagnose the remote controller with this function QD Select Service from the Main menu and press the button Service menu 2 2 Maintenance password Remote controller check Select Remote controller check with the F1 or F2 button and press the button Main menu Se 2 Select Remote controller check from the Service menu and press the but Remote controller check ton to start the remote controller check and see the check results g Start checking To cancel the remote controller check and exit the Remote controller check menu screen press the or the 5 button v The remote controller will not reboot itself F1 FO F4 Begin Y eoe G No problems are found with the remote controller Check other Controller check results screen parts for problems Remote controller check E3 6832 There is noise on the transmission line or the indoor unit or another remote controller is faulty Check the transmission line and the Start checking other remote controllers NG ALL0 ALL1 Send receive circuit fault Remote controller needs replacing ERC The number of data errors is the discrepancy between the number of bits in the data transmitted from the remote controller and that of the qata that was actually transmitted over the transmission line If data
50. P9 Pipe TH5 sensor error As for indoor unit 3 E6 E7 Indoor outdoor unit communication error refer to indoor 4 P4 Drain sensor error Float switch connector CN4F open units service 5 P5 Drain pump error manual PA Forced compressor stop Due to water leakage abnormality 6 P6 Freezing Overheating protection operation 7 EE Communication error between indoor and outdoor units 8 P8 Pipe temperature error 9 4 E5 Remote controller signal receiving error 10 11 12 Fb Indoor unit control system error memory error etc 14 PL Abnormality of refrigerant circuit _ E0 E3 Remote controller transmission error E1 E2 Remote controller control board error Output pattern B Errors detected by unit other than indoor unit outdoor unit etc Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp blinks Check code Number of times Symptom Remark Indoor outdoor unit communication error 1 E9 Transmitting error Outdoor unit 2 UP Compressor overcurrent interruption 3 U3 U4 Open short of outdoor unit thermistors For details check 4 UF Compressor overcurrent interruption When compressor locked the LED display 5 U2 temperature 49 operated of the outdoor ngeran controller board Abnormal high pressure 63H operated Overheating 6 U1 Ud protection operation 7 U5 Abnormal temperature of heatsink 8 U8 Out
51. button ON OFF 4M MITSUBISHI ELECTRIC OC pO MODE FAN AUTO STOP AUTO STAR G CHECK LOUVER 9 1 h gczeg TEST RUN SET min RESET CLOCK OCH415G Procedure 1 Press the CHECK button twice Refrigerant address display 2 Press the temperature Temperature buttons button 3 Point the remote controller at the sensor to the indoor unit and press the HOUR button HOUR button 4 Point the remote controller at the sensor to the indoor unit and press the ON OFF button 48 CHECK lights and refrigerant address 00 flashes Check that the remote controller s dis play has stopped before continuing Select the refrigerant address of the indoor unit for the self diagnosis Note Set refrigerant address using the outdoor unit s DIP switch SW1 For more information see the out door unit installation manual If an air conditioner error occurs the indoor unit s sensor emits an intermit tent buzzer sound the operation light flashes and the error code is output It takes 3 seconds at most for error code to appear The check mode is cancelled Refer to the following tables for details on the check codes Output patt
52. code will be displayed O OF OPTION To clear the error code press the ON OFF button Alternating Display CHECK 285 M CHECK Bal EL nan lt gt sie nn LILI e LILI Error code 2 or 4 digits Address 3 digits or unit number 2 digits When using remote local controller combined operation cancel the error code after turning off remote operation During central control by a MELANS controller cancel the error code by pressing the ON OFF button 11 3 4 Self Diagnosis During Maintenance or Service lt PAR 21MAA gt Since each unit has a function that stores error codes the latest check code can be recalled even if it is cancelled by the remote controller or power is shut off Check the error code history for each unit using the remote controller Set the unit number refrigerant address you want to diagnose D Switch to self diagnosis mode Press the TEMP buttons V A to select the desired Press the CHECK button twice within 3 seconds number or address The number address changes between 01 and The display content will change as shown below 50 or 00 and 15 SELF SELF CHECK EM nn nn LILI LILI e The refrigerant address will begin to flash Unit number or refrigerant address approximately 3 seconds after being selected to be diag
53. eva Temperature TH7 Outdoor temperature n the case of UL error the compressor may be damaged if the unit is restarted by remote controller To avoid the damage unit has the system that is not able to be restarted unless the power is turned OFF Stop valve of outdoor unit is closed during operation Leakage or shortage of refrigerant Malfunction of linear expansion valve 55 Check stop valve Check intake super heat Check leakage of refrigerant Charge additional refrigerant Check linear expansion valve Refer to 11 6 Error Code Abnormal points and detection method Case Judgment and action Compressor overcurrent interruption Abnormal if overcurrent DC bus or compressor is detected after compressor starts operating for 30 seconds Q Stop valve of outdoor unit is closed 2 Decrease of power supply voltage Looseness disconnection or converse of compressor wiring connection Defective fan of indoor outdoor units Short cycle of indoor outdoor units Defective input circuit of outdoor controller board Defective compressor Open stop valve Check facility of power supply Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Check indoor outdoor fan Solve short cycle Replace outdoor controller circuit board Check compressor Refer to 11 6 Before the replacement of the outdoor
54. indoor controller board 1 When LEDS is not blinking Check indoor outdoor connecting wire for miswiring Converse wiring of S1 and S2 or break of S3 wiring 2 When LEDS is blinking Indoor outdoor connecting wire is normal Check LED display on outdoor controller circuit board Refer to 11 10 Check protection device connector 63L and 63H for contact failure Refer to 11 9 3 When pressing the remote controller operation switch the OPERATION display is appeared but it will be turned off soon OCH415G After cancelling to select function from the remote controller the remote controller operation switch will be not accepted for approx 30 seconds 61 Normal operation Phenomena Factor Countermeasure 4 Even controlling by the wireless remote controller no beep is heard and the unit does not start operating Operation display is indicated on wireless remote controller The pair number settings of the wireless remote controller and indoor controller board are mismatched Check the pair number settings When operating by the wireless remote controller beep sound is heard however unit does not start operating No operation for 2 minutes at most after the power supply ON Local remote controller operation is prohibited Remote controlling adaptor is connected to CN32 on the indoor controller board Local remote controller operation is prohibited
55. uogepuno4 m c gt 1 199300881911 m 009 pm Ajjeoo paseyound ay pue 181 eq 1 pue 5108 8 ay SI paypjou padeys N Z yBlu SUOHOSIIP WO slloq OL uj GJ 8008 3IAI8S 10 ejdurexe oiseq pue Ajwuy ayy enoes esee d pepaeu oeds jo suoisuawiq 5 SNOILOSUIC 51108 NOILVONNO4 39785 39439 y 39045 33t OCH415G mm Uni 9 l ou 18 612 ejou Buidid 149409 1 1u014 lou y inoxoouy 2 2 joy Ajddns je od ES ss noxoouy S9 S 26 inoxoouy lou 26 no 99 Gere 8 ajoy E Ike i uu yo e 26 o 1 26 HS gt noxpouy 5 lz a 6 w jnoyoouy ov Ov Sv Ot Bunun
56. w j 1 2 ERE EN TABP1 Detection of primary 8 current n Connect to the outdoor noise filter circuit board CN5 c4 7 Connect to the outdoor controller circuit board CN4 TABP2 SC P2 Connect to ACTM Connect to ACTM 25 lt RED gt 26 22 _ w TABN1 TABN Connect to the smoothing capacitor CBO smoothing capaci tor CB OCH415G Connect to ACTM TABP TABU TABV TABW TABN2 Connect to the Connect to the compressor MC Connect to ACTM Voltage among phases 10V 180V AC 83 eel Outdoor power circuit board Brief Check of POWER MODULE Usually they in a state of being short circuited if they are broken PUHZ P100VHA3R2 UK Measure the resistance in the following points connectors etc PUHZ P100VHA4 UK nere EET MUN means that they are broken Check o PUHZ P125VHA3R2 UK D Check of DIODE circuit PUHZ P140VHA3R2 UK 11 5 10 8 11 S IN1 PUHZ P125VHA3R3 UK Check of IGBT circuit L2 1 PUHZ P140VHA3R3 UK Check of INVERTER circuit PI IUL LPJ LVJ INT LUJ INTIHW Note The marks 15 L1 12 P U LV and W shown in the diagram are not actually printed on the board CN2 Connect to the o
57. 24 24 SHF BF The unit of pressure has been changed to NPa based on international Sl system The conversion factor is 1 MPa 10 2 kgf cm OCH415G 14 OUTLINES AND DIMENSIONS 7 mm coe Sri SPL ozz 02 Qnoyoouy lou ureq Inoyoouy BIN 26 aloy eeu 6 NS Sou Buidid 1u014 p Q Q z f o Rx RIT la inoyoouy c a lou Buidid N a lg 2 noypouy dele ak L Inoyoouy A ejou uyun Ov ty 7 Sv OP ajoy Buun juos InoyoouyzZ z O30003 2 2 4enoo ejou Buum A ddns amod lou 14514 Burdid 1rd ejou Buum A ddns 19409 Buldid 1
58. 3 PUHZ P100V 2 Remove the top panel See Figure 1 CORO SE 3 Disconnect the indoor outdoor connecting wire and the board power supply wire from the terminal block 4 Disconnect the connector CNF1 and LEV A on the controller circuit board lt Symbols on the board gt CNF1 Fan motor LEV A LEV 5 Disconnect the pipe side connections of the following parts Thermistor lt Outdoor Pipe gt lt Liquid gt TH3 Thermistor lt Discharge gt TH4 VHA2 VHA3 R1 Thermistor lt Comp Surface gt TH32 VHA3R2 VHA4 YHA R1 YHA2 R1 Thermistor lt Outdoor 2 Phase Pipe Outdoor gt lt 2 Phase Pipe Ambient gt TH6 7 High pressure switch 63H 4 way valve coil 2154 6 Remove the terminal cover and disconnect the compressor qx lead wire 7 Loosen the clamp on the separator and unbind the lead Jerminal bloc rB fing eens wires 8 Remove 2 control box fixing screws 4 x 10 and detach the control box by pulling it upward The control box is fixed with 2 hooks on the left and 1 hook on the right OCH415G 129 Continued to the next page From the previous page OPERATING PROCEDURE PHOTOS Photo 4 PUHZ P100Y Wire clip Electrical parts box fixing screws Terminal block Terminal block TB2 4 Removing the thermistor lt Outdoor 2 phase pipe gt TH6 Photo 5 1 Remove the service panel See Figure 1 Thermistor 2 Rem
59. 8 10 minutes continuously because of collision of transmission Data could not reach transmission wire for 8 10 minutes continuously because of noise or etc Note The address and attribute displayed at remote controller indicate the controller that detected abnormality OCH415G Transmission processor could not transmit because short cycle voltage of noise and the like have entered into transmission wire continuously Transmission quantity has increased and transmission is not possible because there was wiring mistake of terminal block for transmission wire TB3 and terminal block for central control TB7 in outdoor unit Transmission is mixed with others and occupation rate on transmission wire rose because of defective repeater a function to connector or disconnect transmission of control and central control system of outdoor unit then abnormality is detected 58 Check if transmission wire of indoor unit FRESH MASTER LOSSNAY or remote controller is not connected to terminal block for central control TB7 of outdoor unit Check if transmission wire of indoor unit FRESH MASTER or LOSSNAY is not connected to terminal block for transmission wire of outdoor unit Check if terminal block for transmission wire TB3 and terminal block for central control TB7 is not connected Check transmission wave form or noise on transmission wire Error Code Abnormal points and de
60. 9999 jam Only for air conditioners with DC fan motor 20 Outdoor unitFan lt 0 9999 rpm 0 is displayedifthe air conditioneris a single fan Only for air conditioners with DC fan motor type 21 22 LEV A opening 0 500 Pulses 23 LEV B opening 0 500 Pulses 24 25 Primary current 0 50 A 26 DC bus voltage 180 370 V 27 28 29 Number of connected indoor units 0 4 Units 30 Indoor unit Setting temperature 17 30 31 Indoor unit Intake air temperature Measured by thermostat 8 39 32 Indoor unit Intake air temperature Unit No 1 8 39 c O is displayed if the target unit is not present lt Heat mode 4 deg correction gt 33 Indoor unit Intake air temperature Unit No 2 8 39 1 lt Heat mode 4 deg correction gt 34 Indoor unit Intake air temperature Unit No 3 8 39 lt mode 4 deg correction gt 35 Indoor unit Intake air temperature Unit No 4 8 39 1 lt Heat mode 4 deg correction gt 36 37 Indoor unit Liquid pipe temperature Unit No 1 39 88 o is displayed if the target unit is not present 38 Indoor unit Liquid pipe temperature Unit 2 39 88 C 1 39 Indoor unit Liquid pipe temperature Unit No 3 39 88 1 40 Indoor unit Liquid pipe temperature Unit No 4 39 88 1 41 42 Indoor unit Cond Eva pipe temperature Unit No 1 39 88 0 is displayed if the target unit is not present 43
61. BOARD LED Displ Cause Remote Controller Display lt Eni digital display N Remote controller displays PLEASE After startup is displayed only After power is turned on PLEASE WAIT is displayed for 2 WAIT and cannot be operated green lights up lt 00 gt minutes during system startup Normal s RE en d blink Incorrect connection of outdoor terminal block Li Le Ls and After power is turned on PLEASE WAIT alternately lt F1 gt 51 52 53 is displayed for 3 minutes then error code After startup is displayed is displayed green once and red twice blink Outdoor unit s protection device connector is open alternately F3 F5 F9 After startup is displayed Incorrect wiring between the indoor and outdoor unit Polarity green twice and red once blink is wrong for 51 S2 53 No display appears even when remote De controller operation switch is turned on alternately EA Eb e pus us a Operation lamp does not light up After startup is displayed only green lights up lt 00 gt Remote controller transmission wire open Display appears but soon disappears After startup is displayed only After canceling function selection operation is not possible for even when remote controller is operated green lights up lt 00 gt about 30 seconds Normal Press the remote controller s CHEC
62. Central remote controller Power supply appliance M NET type outdoor M NET type outdoor M NET type outdoor zT FX M NET transmission wire OGood example 2 Single spot earthing of shield wire Central remote controller Power supply appliance M NET type outdoor M NET type outdoor M NET type outdoor A M NET transmission wire If there are more than 2 grounding spots on the shield wire noise may enter into the shield wire because the earth wire and shield wire form 1 circuit and the electric potential difference occurs due to the impedance difference among earthing spots In case of single spot grounding noise does not enter into the shield wire because the earth wire and shield wire do not form 1 circuit To avoid communication errors caused by noise make sure to observe the single spot grounding method described in the installation manual OCH415G 33 M NET wiring 1 Use 2 core x 1 25 mm shield wire for electric wires Excluding the case connecting to system controller 2 Connect the wire to the M NET terminal block Connect one core of the trans mission wire no polarity to A terminal and the other to B Peel the shield wire twist the shield part to a string and connect it to S terminal 3 In the system which several outdoor units are bei
63. Cu m C the indoor unit Installation Manual for the detailed information about ini tial settings mode numbers and setting numbers for the indoor units Be sure to write down the settings for all functions if any of the initial 8 V settings has been changed after the completion of installation work OCH415G 104 12 1 2 Selecting functions using the wired remote controller lt PAR 21MAA gt First try to familiarize yourself with the flow of the function selection procedure In this section an example of setting the room temperature detection position is given For actual operations refer to steps to Setting number Mode number Refrigerant address Unit number EN MITSUBISHI ELECTRIC L gal TEMP ON OFF Cv CA2 Cay c at CLEAR pa Sm dw a S E 2 Beal Gv CAD PAR 21MAA CLOCK OPERATION A Modes 01 to 14 can be activated by pressing buttons and simultaneously and modes 15 to 28 by pressing buttons and The flow of the function selection procedure is shown below This example shows how to use the remote controller s internal sensor Mode No 2 setting No 3 D Check the function selection setting Switch to function setting mode Press at the same time with the remo
64. Emergency Operation 2184 Solenoid Valve Four Way Valve NI Connection Terminal N Phase SS Connector Connection for Option SV Solenoid Valve Bypass Valve DCL1 DCL2 Connection Terminal Reactor CNDM Connector CH Crankcase Heater IGBT Power Module Connection for Option Contact Input 63H High Pressure Switch El E2 E3 E4 Connection Terminal Ground CNM Connector A Control Service Inspection Kit TH3 Thermistor Outdoor Pipe C B Controller Circuit Board LED1 LED2 LED Operation Inspection Indicators TH6 Thermistor Outdoor 2 Phase Pipe SW1 Switch Manual Defrost Defect History Record F1 F2 F3 F4 Fuse T6 3AL250V TH7 Thermistor Ambient Reset Refrigerant Address X51X52 X54X55 Relay TH32 Thermistor Comp Surface SW4 Switch Test Operation LEV A Electronic Expansion Valve SW5 Switch Function Switch Model Select gt DCL Reactor SW6 Switch Model Select gt CB Main Smoothing Capacitor SW7 Switch Function Switch CY1 CY2 Capacitor Sw8 Switch Function Switch When M NET adaptor is connected 63H LEV A X1 X e eee 5990 59 ILLIY 5
65. JI l2 from the sensor holder f 2 Note When replacing thermistor Outdoor 2 Phase Pipe gt TH6 replace it together with thermistor lt gt lt Ambient gt TH7 since they are combined together Refer to procedure 5 to remove thermistor lt Outdoor gt lt Ambient gt 5 Removing the thermistor lt Ambient gt TH7 Photo 6 1 Remove the service panel See Figure 1 gt 2 Remove the top panel See Figure 1 3 Disconnect the connector TH6 and TH7 red on the controller circuit board in the control box Loosen the fastener and the cable strap on the control box and unbind the lead wires 4 Loosen the clamp for the lead wire in the top of the control box See Photo 5 5 Pull out the thermistor lt Ambient gt TH7 from the sensor holder Note When replacing thermistor lt Outdoor gt lt Ambient gt TH7 replace it together with thermistor lt Outdoor 2 phase pipe gt TH6 since they are combined together Lead wire of thermistor Sensor holder Refer to procedure 4 to remove thermistor lt Outdoor lt Outdoor gt TH7 2 phase pipe gt 6 Removing the thermistor lt Outdoor pipe gt TH3 thermistor lt Discharge gt TH4 and thermistor lt Comp Surface gt TH32 Photo 7 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Disconnect the connectors TH3 white and TH4 white TH32 black on the controller circuit board in the contr
66. Liquid gt IGBT Power Module CNM Connector lt Connection for Option gt TH6 Thermistor 2 Phase Pipe El E2 E3 E4 Connection Terminal Ground LED1 LED2 LED Operation Inspection Indicators TH7 Thermistor Ambient C B Controller Circuit Board F1 F2 F4 Fuse lt T6 3AL250V gt TH8 Thermistor internal Heat Sink gt SW1 Switch lt Manual Defrost Defect History Record X51 X62 X64 X55 Relay TH32 Thermistor lt Comp Surface gt Reset Refrigerant Address gt LEV A Linear Expansion Valve SW4 Switch lt Test Operation gt DCL Reactor SW5 Switch lt Function Switch Model Select gt Main Smoothing Capacitor SW6 Switch lt Model Select gt 1 2 Capacitor SW7 Switch lt Function Switch gt SW8 Switch lt Function Switch gt When M NET adapter is connected 63H LEV A o o TH32 TH7 TH6 TH3 is Z B Ses 55 8545 e MENETADAPTER 1 6 1 31 5 2 55 58 CNVMNT CNMNT gt e BLK WHT WHT Ag gE s 6 Suy 1 CNM 42 e FEE YLW WHT CN2 WHT wan TRED 1 3 2 i 5 9999999 CIS ID zeip CNDC 3 oS F3 t f t 10 D 10 lo WHT a e
67. Outdoor unit silent mode setting Night set back Language Use to select the desired language selection Service Test run Select Test run from the Service menu to bring up the Test run menu Test run Drain pump test run Input Select Input maintenance Info from the Service menu to bring up the Maintenance information maintenance screen The following settings can be made from the Maintenance Information screen Model name input Serial No input Dealer information input Function Make the settings for the indoor unit functions via the remote controller as necessary setting LOSSNAY This setting is required only when the operation of City Multi units is interlocked with LOSSNAY setting units City Multi only Check Error history Display the error history and execute delete error history Refrigerant leak check Refrigerant leaks can be judged Smooth maintenance The indoor and outdoor maintenance data can be displayed Request cord Details of the operation data including each thermistor temperature and error his tory can be checked Self check Error history of each unit can be checked via the remote controller Maintenance Take the following steps to change the maintenance password password Remote When the remote controller does not work properly use the remote controller checking function controller to troubleshoot the problem check OCH415G 111 12 2 2
68. P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK Service Ref PUHZ P125YHA UK PUHZ P140YHA UK PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK PUHZ P140YHAR2 UK Compressor model TNB220FLCMT TNB306FPNM TNB306FPNMT Winding Resistance 9 OCH415G 12 6 3 NOISE CRITERION CURVES MICROPHONE im 1 5m UNIT a GROUND PUHZ P125VHA2 UK PUHZ P125VHA21 UK PUHZ P125VHA3 UK PUHZ P125VHA3R1 UK PUHZ P125VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P125YHA UK MODE SPL dB LINE PUHZ P125YHAR1 UK HEATING 55 ee PUHZ P125YHAR2 UK 90 80 0 0002 70 60 50 40 30 20 APPROXIMATE THRESHOLD OF HEARING FOR T CONTINUOUS OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB NOISE 10 63 125 250 500 BAND CENTER FREQUENCIES Hz OCH415G 1000 2000 4000 8000 13 PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK PUHZ P100YHA UK PUHZ P100YHAR1 UK MODE SPL dB LINE PUHZ P100YHA2 UK COOLING 50 o o PUHZ P100YHA2R1 UK HEATING 54 90 lI z 5 i E S 80 m 70 _ 60 u 50 2 40 a 20 NG t UN T iea
69. SW4 2 Turn off SW4 1 to finish the test run ON There may a faint knocking sound around the machine room after power is supplied but this is FE no problem with product because the linear expansion pipe is just moving to adjust opening pulse There may a knocking sound around the machine room for several seconds after compressor starts operating But this is not a problem with product because the check valve itself generates the Stop Operation sound due to small pressure difference in the refrigerant circuit Cooling Heating Note The operation mode cannot be changed by SW4 2 during test run To change test run mode stop the unit by SW4 1 change the operation mode and restart the test run by SW4 1 OCH415G 37 11 TROUBLESHOOTING 11 1 TROUBLESHOOTING Error code display by self diagnosis and actions to be taken for service Summary gt Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit Actions to be taken for service which depends on whether or not the trouble is reoccurring at service are summarized in the table below Check the contents below before investigating details Unit conditions at service Error code Actions to be taken for service summary Judge what is wrong and take a corrective action according Displayed to 11 4 Self diagnosis action table The trouble is reoccurring Co
70. Sd 67 f HGD h Earth leakage breaker Earth leakage breaker 52 6 2 wiring circuit breaker wiring circuit breaker or 1 1 i 1 isolating switch isolating switch 6 t 1 1 1 N 1 91 __ 9 1 19 LOL iy P Ne PA Synchronized triple Outdoor Indoor Indoor Indoor j unit unit unit unit DES power Oli Remote Supply OM p controller 2 e I i del Indoor outdoor EE I connection cable Earth 9 qo breaker T wiring circuit breaker or I iu isolating switch 3 69 63 G3 1 1 i 1 1 1 1 __ imas t OCH415G 30 9 2 SEPARATE INDOOR UNIT OUTDOOR UNIT POWER SUPPLIES The following connection patterns are available The outdoor unit power supply patterns vary on models lt For models without heater gt The optional indoor power supply terminal kit is required lt gt g XO X2 ox lt gt IC E e e 0 e Ij WOO Outdoor unit power supply Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit Indoor unit outdoor unit connecting cords Remote controller Indoor unit Option Q Indoor unit power supply Affix a label B that is included with the manuals near each wiring diagram for the
71. The compressor continues to run for 30 or more seconds b The liquid pipe temperature or the condense evaporator temperature is 75 C or more These detected errors will not be cancelled until the power source is reset lt M NET communication error gt Error Code Abnormal points and detection method D Abnormal operation of 4 way valve Disconnection of or leakage in refrigerant pipes 9 Air into refrigerant piping Abnormal operation no rotation of indoor fan Defective fan motor Defective indoor control board Defective refrigerant circuit clogging When this error occurs be sure to replace the 4 way valve Check refrigerant pipes for disconnection or leakage After the recovery of refrigerant vacuum dry the whole refrigerant circuit Refer to section 11 6 Check refrigerant circuit for operation To avoid entry of moisture or air into refrigerant circuit which could cause abnormal high pressure purge air in refrigerant circuit or replace refrigerant Note Indoor unit in the text indicates M NET board in outdoor unit Case Judgment and action Duplicate address definition This error is displayed when transmission Note The address and attribute displayed at remote controller indicate the controller that detected abnormality from the units of same address is detected There are 2 or more same address of controller of outdoor unit indoor
72. _ transmission wire A control remote controller i Refrigerant address 00 M NET Power address 01 supply unit for transmission wire remote controller Group B piii riii address 03 EL Refrigerant Refrigerant address 00 address 01 M NET address 02 m A control remote controller Refrigerant address 01 M NET address 02 Group C n Refrigerant address 00 M NET address 04 A control remote controller Refrigera address 81 50 KLID SAR ey AE VEL Refrigerant address 02 address 05 n group B M NET address of the outdoor unit whose refrigerant address is 00 is not set to the minimum in the group As 3 is right for this situation the setting is wrong Taking group A as a good sample set the minimum M NET address in the group for the outdoor unit whose refrigerant address is 00 OCH415G 34 10 REFRIGERANT SYSTEM DIAGRAM Unit mm inch PUHZ P100VHA2 UK Refrigerant flow in cooling PUHZ P100VHA3 UK Refrigerant flow in heating PUHZ P100VHA3R1 UK Service High pressure port protect switch Stop valve 4 way valve check Outdoor heat exchanger 50 Thermistor Refrigerant GAS pipe Strainer a 15 88mm d5 8 TH6 Thermistor Service TH3 port check Thermistor TH4 Accumulator
73. and turn the power on again If mal function was accidental the unit returns to normal If the same abnormality generates again controller of displayed address and attribute may be defective Countermeasure 1 Remote controller display does not work DC12V is not supplied to remote controller Power supply display is not indicated on LCD DC12 15V is supplied to remote controller however no display is indicated PLEASE WAIT is not displayed PLEASE WAIT is displayed Check LED2 on indoor controller board 1 When LED is lit Check the remote controller wiring for breaking or contact failure 2 When LED is blinking Check short circuit of remote controller wiring 3 When LED2 is not lit Refer to Phenomena No 3 below Check the following Failure of remote controller if PLEASE WAIT is not displayed Refer to Phenomena No 2 below if PLEASE WAIT is displayed 2 PLEASE WAIT display is remained on the remote controller Q At longest 2 minutes after the power supply PLEASE WAIT is displayed to start up Communication error between the remote controller and indoor unit Communication error between the indoor and out door unit Outdoor unit protection device connector is open Normal operation Self diagnosis of remote controller 9 PLEASE WAIT is displayed for 6 min utes at most in case of indoor outdoor unit communication error Check LED3 on
74. box 5 Loosen the clamp on the control box and unbind the lead wires x L Removing the 4 way valve 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the valve bed 4 Remove 9 side panel R fixing screws 5 x 12 in the rear S of the unit and then remove the side panel R n b Remove the 4 way valve coil Refer to procedure 7 n Ei Bypass valve 4 way valve coil 4 way valve 6 Recover refrigerant coil SV 2154 7 Remove the welded part of 4 way valve Bypass Note 1 Recover refrigerant without spreading it in the air valve 4 way valve Note 2 The welded part can be removed easily by fixing screw fixing screw removing the right side panel Note 3 When installing the 4 way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 9 Removing LEV 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the valve bed Refer to procedure 8 4 Remove the side panel R Refer to procedure 8 5 Remove the LEV coil Refer to procedure 7 6 Recover refrigerant 7 Remove the welded part of LEV Note 1 Recover refrigerant without spreading it in the air Note 2 The wel
75. by centralised controller etc since it is connected to MELANS G Refer to Phenomena No 2 on previous Normal operation Normal operation Check Phenomena No 2 on previous page Remote controller display works normally and the unit performs cooling operation however the capacity cannot be fully obtained The air does not cool well Refrigerant shortage Filter clogging Heat exchanger clogging Air duct short cycle If refrigerant leaks discharging temperature rises and LEV opening increases Inspect leakage by checking the temperature and opening Check pipe connections for gas leakage Open suction grill and check the filter Clean the filter by removing dirt or dust on it If the filter is clogged indoor pipe temperature rises and discharging pressure increases Check if heat exchanger is clogged by inspecting discharging pressure Clean the heat exchanger Remove the blockage 7 Remote controller display works normally and the unit performs heating operation however the capacity cannot be fully obtained Q Linear expansion valve fault Opening cannot be adjusted well due to linear expansion valve fault Refrigerant shortage Lack of insulation for refrigerant piping Filter clogging Heat exchanger clogging Air duct short cycle Bypass circuit of outdoor unit fault Discharging temperature and indoor heat exchanger temperature do
76. cable length is just a reference value It may be different depending on the condition of installation humidity or materials etc Wire No x Size mm Max 45m Max 50m Max 80m Outdoor power supply Indoor unit Outdoor unit 3 x 1 5 polar 3 x 2 5 polar 3 x 2 5 polar and S3 separated Indoor unit Outdoor unit earth 1 x Min 1 5 1 x Min 2 5 1 x Min 2 5 The Max cable length may vary depending on the condition of installation humidity or materials etc Indoor Outdoor separate Wire No x Size mm powersupply Max 120m Indoor unit Outdoor unit 2 x Min 0 3 Indoor unit Outdoor unit earth The optional indoor power supply terminal kit is necessary Be sure to connect the indoor outdoor connecting cables directly to the units no intermediate connections Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to earth or a poor electrical contact at the intermediate connection point OCH415G 32 9 4 M NET WIRING METHOD Points to note 1 Outside the unit transmission wires should stay away from electric wires in order to prevent electromagnetic noise from making an influence on the signal communication Place them at intervals of more than 5 cm Do not put them in the same conduit tube 2 Terminal block TB7 for transmission wires should never be connected to V power supply If it is connecte
77. controller circuit board 7 Remove the control box Refer to procedure 3 8 Loosen the clamp on the separator and unbind the lead wires 9 Recover refrigerant 1 10 Remove the welded part of high pressure switch 1 MS Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part be removed easily by removing the right side panel 94 7 SV ely 4 way valve Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 C or more then braze the pipes so that the inside fixing N aay valve coil 1 35 IXing screw of pipes are not oxidized 12 Removing the reactor DCL 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the control box See Photo 3 Removing the reactor 4 Remove 4 reactor fixing screws 4 x 10 and remove the reactor Photo 10 PUHZ P125 140VHA2 UK Reactor fixing screw The reactor is attached to the rear of the control box Reactor fixing screws Control box OCH415G 137 OPERATING PROCEDURE PHOTOS 13 Removing the motor for compressor MC Photo 11 Controller circuit board 1 Remove the service panel See Figure 1 C B 2 Remove the top panel See Figure 1 3 Remove 2 cover panel front fixing screws 5 x 12 and 7 Electrical remove the cover panel front Mes OORA part
78. controller circuit board disconnect the wiring to compressor from the outdoor power circuit board and check the output voltage among phases U V W during test run No defect on board if voltage among phases U V V W and W U is same Make sure to perform the voltage check with same performing frequency Remote controller transmission error EO signal receiving error E4 Abnormal if main or sub remote controller cannot receive any transmission normally from indoor unit of refrigerant address 0 for 3 minutes Error code EO Abnormal if sub remote controller could not receive any signal for 2 minutes Error code EO Q Abnormal if indoor controller board cannot receive any data normally from remote controller board or from other indoor controller board for 3 minutes Error code E4 Indoor controller board cannot receive any signal from remote controller for 2 minutes Error code E4 Contact failure at transmission wire of remote controller All remote controllers are set as sub remote controller In this case EO is displayed on remote controller and E4 is displayed at LED LED1 LED2 on the outdoor controller circuit board Mis wiring of remote controller Defective transmitting receiving circuit of remote controller Defective transmitting receiving circuit of indoor controller board of refrigerant address 0 amp Noise has entered into the transmission wire of remote controlle
79. down cannot be completed normally Start up of the indoor outdoor communication takes about 3 minutes after the power circuit breaker is turned on Start the pump down operation 3 to 4 minutes after the power circuit breaker is turned on Perform the refrigerant collecting operation cooling test run Push the pump down SWP switch push button type on the control board of the outdoor unit The compressor and ventilators indoor and outdoor units start operating refrigerant collecting operation begins LED1 and LED2 on the control board of the outdoor unit are lit Only push the pump down SWP switch if the unit is stopped However even if the unit is stopped and the pump down SWP Switch is pushed less than 3 minutes after the compressor stops the refrigerant collecting operation cannot be performed Wait until the compressor has been stopped for 3 minutes and then push the pump down SWP switch again amp Fully close the stop valve on the gas pipe side of the outdoor unit when the pressure gauge on the gauge manifold shows 0 05 to 0 MPa Gauge approx 0 5 to 0 kgf cm and quickly stop the air conditioner Because the unit automatically stops in about 3 minutes when the refrigerant collecting operation is completed LED1 off lit be sure to quickly close the gas stop valve However if LED1 is lit LED2 is off and the unit is stopped open the liquid stop valve completely close the valve completely after 3 minutes o
80. for disconnection or leakage GAfter the recovery of refrigerant vacuum dry the whole refrigerant circuit Refer to section 11 6 HOW TO CHECK THE PARTS Check refrigerant circuit for operation 5 blinking Serial communication error lt Communication between outdoor controller board and outdoor power board gt lt Communication between outdoor controller board and M NET P C board gt Check if connector CN4 on outdoor controller board and outdoor power board is not disconnected Check if there is poor connection of connector on outdoor controller board CNMNT and CNVMNT Communication error of M NET system 1 Error code is displayed on remote controller 2 Refer to service OCH415G manual for indoor unit Check M NET communication signal 91 Indication Outdoor controller board LED1 Green LED2 Red Contents Inspection method Detailed reference page 3 blinking 1 blinking Abnormality of shell thermostat and discharging temperature TH4 Check if stop valves are open Check if connectors LEV A on outdoor controller board are not disconnected Check if unit fills with specified amount of refrigerant Measure resistance values among terminals on indoor valve and outdoor linear expansion valve using a tester p 52 2 blinking Abnormal high pressure High pressure switch 63H operated D Check if indoor o
81. g Refrigerant address 00 E E 3 B TEMP ON OFF 7 ea TARSO OMENU ON OFF is FILTERS 39 a TEST 1 A gt GD am eu e o B Refrigerant address 7 Data display area PAR 21MAA CLEAR 4 2 2 6 D Request code display area 1 Press the TEST button for 3 seconds so that Maintenance mode appears on the screen at 2 Press the CHECK button for seconds to switch to Maintenance monitor Note It is not possible to switch to Maintenance monitor during data request in maintenance mode i e while is blinking since no buttons are operative Operating the service inspection monitor appears on the screen at when Maintenance monitor is activated The display at now allows you to set a request code No 3 Press the TEMP buttons gt and to select the desired refrigerant address 4 Press the CLOCK buttons D gt A_ to set the desired request code No 5 Press the FILTER button to perform data request The requested data will be displayed at in the same way as in maintenance mode Data collected during operation of the remote controller will be displayed The collected data such as temperature data will not be updated automatically even if the data changes To display the updated data carry out step 4 again Canceling the Monitoring the operation dat
82. is required for the error Remote controller PLEASE WAIT is displayed on the screen Wait around 2 minutes An automatic startup test will be conducted for 2 minutes when power is supplied to the air conditioner PLEASE WAIT will be kept being displayed while that time FILTER is displayed on the screen This indicates that it is time to clean the air filters Clean the air filters Press the FILTER button on the remote controller twice to clear FILTER from the display See the operation manual that came with the product for how to clean the filters Display time of FILTER depends on the model Long life filter 2500 hrs Regular filter 100 hrs 9 STANDBY is displayed on the screen This is displayed when the unit starts HEAT operation when the thermostat puts the compressor in operation mode or when the outdoor unit ends DEFROST operation and returns to HEAT operation The display will automatically disappear around 10 minutes later While STANDBY is displayed on the remote controller the airflow amount will be restricted because the indoor unit s heat exchanger is not fully heated up In addition to that the up down vane will be automatically set to horizontal blow in order to prevent cold air from directly blowing out to human body The up down vane will return to the setting specified by the remote controller when STANDBY is released DEFROSTING is
83. of the Check or replace the DC fan motor Abnormal if rotational frequency of the fan DC fan motor motor is not detected during DC fan motor Failure in the outdoor circuit Check the voltage of the outdoor circuit operation controller board controller board during operation Fan motor rotational frequency is abnormal if Replace the outdoor circuit controller board Less than 100 rpm detected continuously when the failure is still indicated even after for 15 seconds at 20 C or more outside performing the remedy above air temperature Less than 50 rpm or more than 1500 rpm detected continuously for 1 minute OCH415G 53 Error Code Abnormal point and detection method Judgment and action Detailed codes To find out the details about U9 error turn ON SW2 1 2 2 2 3 2 4 2 5 2 6 when U9 error occurs To find out the detail history latest about U9 error turn ON SW2 1 2 2 2 6 Refer to 11 10 Overvoltage error Increase in DC bus voltage to P VHA model 400V P YHA model 760V Abnormal increase in power source voltage Disconnection of compressor wiring Defective outdoor power circuit board Defective ACT Module P VHA2 1 P VHA3 R1 Compressor has a ground fault Check the field facility for the power supply Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Replace outdoor power circuit
84. operation TH3 TH6 TH7 outdoor power circuit board Open detection of thermistors TH3 and Outdoor power circuit board Check breaking of the lead wire for thermistor TH6 is inoperative for 10 seconds to 10 CN3 TH3 TH6 TH7 TH8 Refer to 11 9 minutes after compressor starting and 10 Defective thermistor Check resistance value of thermistor minutes after and during defrosting TH3 TH6 TH7 TH8 or check temperature by Check which unit has abnormality in its microcomputer thermistor by switching the mode of SW2 Thermistor TH3 TH6 TH7 TH8 Refer to 11 6 PAC SK52ST SW2 on A Control Service Tool Refer to 11 10 Refer to 11 10 Replace outdoor controller circuit board 9 Defective outdoor controller Emergency operation is available in case of circuit board abnormalities of TH3 TH6 and TH7 Refer to 11 8 U4 TH3 5105 TH6 5107 TH8 5110 Thermistors Name Thermistor lt Outdoor pipe gt 40 C or below 90 C or above Thermistor lt Outdoor 2 phase pipe gt 40 C or below 90 C or above Thermistor lt Outdoor gt 40 C or below 90 C or above Thermistor lt Heatsink gt VHA2 VHA3 R1 YHA2 R1 27 C or below 102 C or above Internal thermistor VHA3R2 R3 VHA4 YHA R1 R2 35C or below 170C or above Open detection Short detection Temperature of heatsink The outdoor fan motor is 06 Check outdoor fan Abnormal if heatsink the
85. remote controller wire short circuits Blinking Defective indoor controller board OCH415G 66 Replace the remote controller Check if there is breaking or poor contact of the remote controller wire Check the voltage of the terminal block TB5 connecting the remote controller wire If itis not between DC 10V and DC16V the indoor controller board must be defective Check if the remote controller wire is short circuited Replace the indoor controller board Before repair Frequent calling from customers Phone Calls From Customers How to Respond Unit does not operate at all The operating display of remote controller does not come on Check if power is supplied to air conditioner Nothing appears on the display unless power is supplied Unit cannot be restarted for a while after it has stopped Wait around minutes to restart unit The air conditioner is in a state of being protected by the microcomputer s directive Once the compressor is stopped the unit cannot be restarted for 3 minutes This control is also applied when the unit is turned on and off by remote controller or thermostat Error code appears and blinks on the display of remote controller Error code will be displayed if any protection devices of the air conditioner are actuated What is error code Refer to SELF DIAGNOSIS ACTION TABLE Check if servicing
86. remove the service panel 2 Remove screws 2 for front 3 for rear 5 x 12 of the top fixing nd remove it panel and remove it screws Service panel Service panel fixing screws screws Removing the fan motor MF1 MF2 Photo 1 Photo 2 1 Remove the service panel See Figure 1 Front panel Fan 2 Remove the top panel See Figure 1 Propeller Fan motor fixing screws motor 3 Remove 10 fan grille fixing screws 5 x 12 to detach the fan grille Top and bottom See Figure 1 4 Remove a nut for right handed screw of M6 to detach the propeller Top and bottom See Photo 1 5 Disconnect the connectors CNF1 CNF2 on controller cir cuit board in control box 6 Loosen 6 clamps on the separator and motor support then unbind the lead wires 7 Remove 8 fan motor fixing screws 5 x 20 to detach the fan motor Top and bottom See Photo 2 Fan motor fixing screws Removing the control box 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Disconnect the indoor outdoor connecting wire and the power supply wire from the terminal block Controller circuit 4 Disconnect the connector CNF1 CNF2 and LEV Aon the _ board C B controller circuit board Symbols on the board CNF1 CNF2 Fan motor LEV A LEV 5 Disconnect the pipe side connections of the following parts Thermistor Outdoor pipe TH3 Thermistor Discharge TH4 VHA
87. seconds on the normal screen after the above setting is made 2 Use of automatic mode setting When the remote controller is connected to the unit that has auto matic operation mode the following settings can be made switch the setting press the ON OFF button ON Initial setting value The automatic mode is displayed when the operation mode is selected The automatic mode is not displayed when the operation mode is selected OFF 3 Temperature range limit setting After this setting is made the temperature can be changed within the set range To switch the setting press the ON OFF button LIMIT TEMP COOL MODE The temperature range can be changed on cooling dry mode LIMIT TEMP HEAT MODE The temperature range can be changed on heating mode LIMIT TEMP AUTO MODE The temperature range can be changed on automatic mode OFF initial setting The temperature range limit is not active When the setting other than OFF is made the temperature range limit setting on cooling heating and automatic mode is made at the same time However the range cannot be limited when the set temperature range has not changed To increase or decrease the temperature press the TEMP V A button To switch the upper limit setting and the lower limit setting press the 4 4 button The selected setting will flash and the temperature can be set Settable range Cooling
88. set numbers Press the f TEMP and A button to move the cursor to the right left Press the CLOCK V and A button to set the numbers 4 4 Display change setting 1 Temperature display C F setting To switch the setting press the ON OFF button C The temperature unit C is used F The temperature unit F is used 2 Room air temperature display setting To switch the setting press the CO ON OFF button ON The room air temperature is displayed OFF The room air temperature is not displayed 3 Automatic cooling heating display setting To switch the setting press the CO ON OFF button ON One of Automatic cooling and Automatic heating is displayed under the automatic mode is running OFF Only Automatic is displayed under the automatic mode CALL 112 Function selection flowchart Setting language English Change Language Function selection Normal display Display when the air conditioner is not running Hold d own the button and press the button for 2 seconds Remo Mode selection Display mode setting OCH415G e controller function selection mode English German Spanish Russian LANGUAGE talian Chinese French u Japanese
89. the right side panel Note 3 When installing the high pressure switch cover it with a wet cloth to prevent it from heating 100 C High pressure switch 63H or more then braze the pipes so that the inside of pipes are not oxidized 11 Removing the reactor DCL Photo 11 PUHZ P100VHA2 UK 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 Reactor fixing screw 3 Remove the control box Refer to procedure 3 4 Remove 4 reactor fixing screws 4 x 10 and remove the reactor The reactor is attached to the rear of the control box Reactor fixing screws Control box OCH415G 132 OPERATING PROCEDURE PHOTOS 12 Removing the compressor MC 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove 2 cover panel front fixing screws 5 x 12 and remove the cover panel front 4 Remove 2 cover panel rear fixing screws 5 x 12 and remove the cover panel rear 5 Remove the control box Refer to procedure 3 6 Remove the valve bed Refer to procedure 8 7 Remove the side panel R Refer to procedure 8 8 Remove 2 separator fixing screws 4 x 10 and remove the separator 9 Remove the soundproof cover for compressor 10 Recover refrigerant 11 Remove the welded pipe of motor for compressor inlet and outlet and then remove the compressor 12 Remove the 3 points of the motor for compressor fixing
90. 0 Connect to the DCL TAB connector on X52CA Connect to the RS resistor TB L1 TB L2 TB L3 Connect to the outdoor noise filter circuit board R906 nes LO1 LO2 LO3 9 400V AC L CN4 Connect to the outdoor controller circuit board CN4 Detection of primary current Connect to the outdoor noise filter circuit board CNCT CN2 Connect to the outdoor controller circuit board CN2 Power circuit board Transmitting signal to the controller board 0 5V DC Zero cross signal 0 5V DC Not used 16V DC 16V DC 6 6 Q Q Q OCH415G tesso L3OUT L3IN Lead connect CN6 Thermistor lt Heat sink gt TH8 87 DIP IPM Active filter module PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P125VHA2 UK PUHZ P125VHA3 UK PUHZ P125VHA3R1 UK PUHZ P140VHA2 UK PUHZ P140VHA3 UK PUHZ P140VHA3R1 UK P Connect to the out KSSH Waaa door power circuit A ILE 222 11 12 board TABP2 Connect to the DCL Reactor 1 2 Upper side Lower side N2 Non connect 5 Connect to the outdoor power circuit board TABP1 Connect to the outdoor power circuit board CNAF lo GND Connect to the outdoor
91. 0 RI board CN5 T CNL Connect to the ACL4 LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 AC400V OUTPUT Connect to the outdoor power circuit board TB L1 TB L2 TB L3 OCH415G 82 Outdoor power circuit board PUHZ P100VHA2 UK PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA21 UK PUHZ P140VHA21 UK Brief Check of POWER MODULE Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc If they are short circuited it means that they are broken 1 Check of diode bridge DS2 DS3 TABP1 TABS TABN1 TABS TABP1 TABT TABN1 TABT 2 Check of DIP IPM P U P V P W N U N V N W PUHZ P100VHA3 UK PUHZ P125VHA3 UK PUHZ P140VHA3 UK PUHZ P100VHA3R1 UK PUHZ P125VHA3R1 UK PUHZ P140VHA3R1 UK CN2 Connect to the outdoor controller circuit board CNDC CN2 CNAF 280 380V DC M Transmitting signal to the outdoor Connect to ACTM Connect to the outdoor controller circuit board 0 5V DC troller circuit board Zero cross signal 0 5V DC DIP IPM nr 18V DC 16V DC DONG49 Siue 16V DC mam Js 717 TABS TABT Connect to the outdoor NL C noise filter circuit board 555 Voltage Ke uL 35s phases I iii t 2 CN3 te j BE o di Thermistor TH8 v LEE lt Heatsink gt
92. 00 14 112 3 1 0 1 0 1 00 15 ojojo 00 00 0 1 1 0 1 0 00 16 11010 00 01 1 1 1 0 1 0 00 17 0 1 0 00 02 0 0 0 1 1 0 00 18 11110 00 03 1 0 0 1 1 0 00 19 01011 00 04 1 0 1 1 00 1A 110 1 00 05 1 1 1 1 10 00 18 ojiji 00 06 00 1C 11111 00 07 110 11 1 1 00 10 1111111 00 1E 1 1 1 1 1 0 00 1F 0 Switch OFF 1 Switch ON 0 0 0 l 0 0 1 00 20 SW4 SW9 SW10 degia 1 oljo olo t1 00 21 1 2 0 1 0 0 0 1 00 22 0 0 00 00 111 00 23 1 0 00 01 00 24 0 1 00 02 11011 1 00 25 1 1 00 03 1 1 00 26 1 1 11 1 00 27 1 1 00 28 11 1 00 29 11011 0 1 00 2 111 1 00 2B 1 00 2C 1 1 1 00 20 1 1 1 1 00 2 1 1 11 1 00 2 0 0 0 0 1 1 00 30 110l0 0 1 1 00 31 0 1 0 0 141 1 00 32 1 1 o o 111 00 33 0 0 1 0 1 1 00 34 1 0 1 0 1 1 00 35 0 1 1 0 141 1 00 36 1 1 1 0 1 1 00 37 1 1 00 38 110 l0 1 1 1 00 39 1 0 1 1 1 00 1 1 o0 11 111 00 3B ololilili 1 00 3C 1 o0 1 1 111 00 3D 1 1 1 1 1 00 3E 14 1 1 1 1 00 3F OCH415G 127 Indoor unit Model setting information Request code 162 Data display 0 0 x K BE See the table on the right
93. 1 For high humidity Setting information Single Heat pump Display 3 phase cooling only Single phase pump Cooling only 3 phase Cooling only 126 Outdoor unit switch setting display 5 to SW10 except SW3 Request codes 73 to 82 0 Switch OFF 1 Switch ON 0 Switch OFF 1 Switch ON I Te S 5 A Data display 1 i Data display 00 00 olololo 00 00 1 1 00 01 1 00 01 00 02 1 00 02 111 00 03 1 1 0 0 00 03 00 04 00 04 1 11 1 00 05 1 0 1 0 00 05 0 1 1 0 0 0 00 06 1 1 0 00 06 111 1 00 07 1 1 1 0 00 07 00 08 olololt 00 08 1 olo 1 lolo 00 09 1 o o 1 00 09 0 1 0 1 0 0 00 0 1 0 1 00 1 1 0 1 0 0 00 Ob 1 1 0 1 00 Ob 00 0 olol11lt1 00 0 110l1 1 0 0 00 Od 1 0 11 1 00 Od 0 1 1 11l0 0 00 OE 111 1 00 1 1 1 1 00 1 1 1 1 00 00 10 1 1 1 0 00 11 s 0 1 1011 0 00 12 0 Switch OFF 1 Switch ON 1 1 0 0 1 0 00 13 SW8 Data display 1
94. 1014 inoxoouy Inoyoouyz z z lou lou A ddns samog 2 2 lou Buidid ejou Ajddns samog Loy bey bx 766 q 104 ______ Jeued Buum A ddns 160 361 929 OSEI IC JC JC JC JC 2C JC JC 2C gt 104 pueH 10 A PUHZ P125YHA UK PUHZ P140YHA UK uonoeuuoo F euwe queg E 40 OLW uonepuno 3 S ou IPAO X 21 2 Ol BE LI 199 096 HEIL OPIS oeu 1n0y90uy 104 uojeoo uonoeuuoo FATWA dOLS JO x 8 29 6 8474 uonoeuuoo edid qinor you 8 5 88 aL 44714 uono uuoo edid Svo 1ueieDujeu 1 S9 ON JO m RI 452 07 OPIS 6 19843 15 OLN log uonepuno 3 Se
95. 12 V 1 Abreaker with at least 3 mm contact separation in each pole shall be provided Use earth leakage breaker NV 2 Max 120 m 3 The 10 m wire is attached in the remote controller accessory Max 500 m 4 The figures are NOT always necessarily the voltage to ground Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cords and indoor unit outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord Design 60245 IEC 57 3 Install an earth longer than other cables OCH415G 31 9 3 INDOOR OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC The cable length may vary depending on the condition of installation humidity or materials etc Cross section Wire size Number of cable mm of wires Round 2 5 Clockwise 51 52 53 Polarity Not applicable Because center wire has no cover finish applicable 2 45 From left to right S1 Open S2 S3 3 Clockwise 51 52 53 Connect S1 and S3 to the opposite angle 1 In case that cable with stripe of yellow and green is available 2 In case that the flat cables are connected as this picture they can be used up to 80m lt 3C Flat cable x 2 51 52 53 3 In case of regular polarity connection S1 S2 S3 wire size is 1 5mm 4 In case of regular polarity connection S1 S2 S3 5 Mentioned
96. 15V DC power circuit board TABN2 Control signal Not used Q Control signal Connect to the outdoor power circuit board TABN1 Connection and internal circuit diagram Tester check points of Active filter module 0 Eror condition Normal value reference Symptom when the unit is in trouble and lo less than 10 The unit does not operate can not be switched ON short 1MQ O The breaker operates Gaa ciel eaker op open 1 The unit does not operate can not be switched U9 Abnormal stop 2 short 1MQ O The breaker operates ey op open 1 The unit does not operate can not be switched U9 Abnormal stop 2 short 1MQ O The breaker operates Sao 7788 eaker op open 1 O The unit does not operate can not be switched U9 Abnormal stop 2 100kQ 1MQ The breaker operates arene open __ 71 O The unit does not operate can not be switched ON U9 Abnormal stop 2 The symptom when the unit is in open error condition is described to determine open error by tester check 2 SW2 setting was Code 20 display 6 OCH415G 88 _ 11 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS 1 Function of switches Acti h itch i Switch No Function ctlon by the switch operation Effective timing ON OFF Wh i ki Compulsory defrosting 1 Start Normal in Ke
97. 2 Heating TH32 TH5 Number of defrost cycles 0 FFFE in hexadecimal notation 0 FFFE When more than FF in hex 255 in decimal the number is displayed in order of 16 s and 1625 16 s and 16 places Example When 5000 cycles 2 cycles 123456 0 5 secs 0 5 secs 2 secs 9 04 gt ON Input current of outdoor unit 0 500 When it is 100 or more hundreds digit tens digit and ones digit are displayed by turns U9 error detail history latest Description Display Normal 00 Overvoltage error 01 Undervoltage error 02 Input current sensor error 04 Li phase open error Code Abnormal power synchronous signal 08 display ACTM IGBT error P100 140V Undervoltage Display examples for multiple errors Overvoltage 01 Undervoltage 02 03 Undervoltage 02 Power sync signal error 08 0 Li phase open error 04 ACTM IGBT error 20 24 20 DC bus voltage 180 370 180 370 When it is 100V or more hundreds digit tens digit and ones digit are displayed by turns OCH415G 97 SW2 setting Display detail The black square m indicates a switch position Explanation for display Capacity save 0 100 When air conditioner is connected to M NET and capacity save mode is demanded 0 100 is displayed When there is no setting of cap
98. 2 VHA3 R1 Thermistor lt Comp Surface gt TH32 VHA3R2 VHAS3R3 YHA R1 R2 Thermistor Outdoor 2 phase pipe Ambient Outdoor 2 phase pipe Outdoor TH6 7 High pressure switch 63H 4 way valve coil 2154 Bypass valve SV2 Crankcase heater SV1 CH 6 Remove the terminal cover and disconnect the compressor lead wire 7 Loosen 2 clamps on the separator and unbind the lead wires 8 Remove 2 control box fixing screws 4 x 10 and detach the control box by pulling it upward The control box is fixed with 2 hooks on the left and 1 hook on the right Photo 3 PUHZ P125 140V Terminal block TB1 Fee ixing s Continued to the next page OCH415G 134 aww ii From the previous page OPERATING PROCEDURE PHOTOS Photo 4 PUHZ P125 140Y Wire clip Electrical parts box fixing screws Terminal block Terminal block TB2 4 Removing the thermistor lt Outdoor 2 Phase Pipe gt TH6 Photo 5 Thermistor 1 Remove the service panel See Figure 1 lt Outdoor 2 phase pipe gt TH6 2 Remove the top panel See Figure 1 AS 3 Disconnect the connectors TH6 and TH7 red on the controller circuit board in the control box Loosen the fastener and the wire clip on the control box and unbind the lead wires 5 TTT TTT 4 Loosen the clamp for the lead wire in the top of the control box 5 Pull out the thermistor lt Outdoor 2 Phase Pipe gt TH6
99. 210 E jnoxoouy oe seay 26 7 Rothe 3 26 J H joy Bun I o noyoouy 2 z Or Sp ejou Ajddns samog 10j Seu OPIS oeu iiy noxoouy lou Bunun 1ulg ino oouy 729 2 ejou Ajddns samog 26 ov noyoouy lou 2924 62 SS lou Buidid luo14 jnoyoouy OP Buuni 2 2 Ajddns Sjrejeq ay 10 uonoeuuoo FATWA 4015 JO UONE9Ipul 8 2 2 6 3dv14 uono uuoo edid qinor 1 9 uou 8 9 88 8 44774 uonoeuuoo edid svo 1 SOION JO pue WO eq suonoeuuoo pue A lt oq uonepuno 4 Ajpeoo paseyound sieusew pue sijog slloq 0 LW uonepunoj y YIM yun ayy enoes ugy 5597 009 1310 OL 59 M E id as
100. 3 GUIDE FOR OPERATION CONDITION ws NES Check Points Breaker Good Retightened Terminal block Outdoor Unit Good Retightened Ae differences between and into 2 8 9 Indoor Unit Good Retightened zu grap given E ined dina to the plotted g insuleton resistance peration state is determined according to the plotted areas on x Voltage V the graph 1 H For data measurements set the fan speed to Hi before activat Com Accumulated operating time Time int 4 Number of ON OFF times Times n9 Maintenance pressor Current A Classification Refrigerant heat exchanger temperature COOL HEAT Inspection Is 0000 displayed stably on the remote _ amp Refrigerant discharge temperature COOL HEAT Stable Unstable ES z z 2 E Air outside air temperature COOL FEAT 5 Temperature Discharge temperature Outdoor 8 E Air discharge temperature COOL C HEAT C 8 difference heat exchanger temperature Cleaning 082 C Indoor intake air temperature 5 g Heat Sxohangor Good Cleaning required Indoor heat exchanger temperature Sound vibration None Present Inspection Is D000 displayed stably on the remote o Air intake air temperature COOL HEAT conie Sta
101. 4 way valve coil by sliding the coil toward you 5 Disconnect the connector 21S4 green on the controller board in the control box 6 Loosen the clamp on the separator and unbind the lead wires Removing the linear expansion valve coil 3 Remove the LEV coil by sliding the coil upward 4 Disconnect the connectors LEV A white on the controller circuit board in the control box 5 Loosen the clamp on the control box and unbind the lead wires Photo 8 4 way valve coil fixing screw LEV coil LEV A 4 way valve 4 way valve coil 2154 Removing the 4 way valve 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the control box Refer to procedure 3 4 Remove 3 valve bed fixing screws 4 x 10 and 4 ball valve and stop valve fixing screws 5 x 16 and then remove the valve bed 5 Remove 4 side panel R fixing screws 5 x 12 in the rear of the unit and then remove the side panel R 6 Remove the 4 way valve coil See Photo 8 7 Recover refrigerant 8 Remove the welded part of 4 way valve Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the four way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized OCH415G 131 OP
102. 415G 64 Symptoms Nothing is displayed on the remote controller Diagnosis flow LED display of the indoor controller board LED1 LED2 LED3 O or y Inspection method and troubleshooting Check the voltage between S1 and S2 on the terminal block TB4 of the indoor unit which is used to connect the indoor unit and the outdoor unit AC 198V to AC 264V7 NO Check the status Not lighting of the indoor controller gt paro LED3 display Check the looseness or disconnection of the indoor outdoor connecting wire Blinking Are there looseness or disconnection of the indoor outdoor connecting wire Check the refrigerant address of the outdoor unit SW1 3 to 1 6 Is the refrigeran address 0 Check the LED display of the outdoor unit after turning on the main power again Not displayed s anything displayed Displayed Is EA or Eb NO displayed Is E8 displayed Can the unit be restarted Check the voltage between S2 and S3 on the terminal block of the outdoor unit OCH415G DC 17V to DC 28V e YES 65 Breaking or poor contact of the indoor outdoor connecting wire Normal Only the unit which has the refrigerant address 0 supplies power to the remote controller Defective outdoor controller circuit board
103. 5 Polar 3 x 1 5 Polar 3 x 1 5 Polar Indoor unit Outdoor unit earth 1 x Min 1 5 1 x Min 1 5 1x Min 1 5 N 7 Remote controller Indoor unit 2 x 0 3 Non polar 2 x 0 3 Non polar 2 x 0 3 Non polar Outdoor unit L N single Outdoor unit L1 N L2 N L3 N 3 phase AC 230 V AC 230 V AC 230 V Indoor unit Outdoor unit S1 S2 AC 230 V AC 230 V AC 230 V Indoor unit Outdoor unit S2 S3 DC 24 V DC 24V DC 24 V x S 2 E 5 9 Remote controller Indoor unit 1 A breaker with at leas DC 12V DC 12V 3 mm contact separation in each pole shall be provided Use earth leakage breaker NV Make sure that the current leakage breaker is one compatible with higher harmonics Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter The use of an inadequate breaker can cause the incorrect operation of inverter 2 3 4 Refer to 9 3 The 10 m wire is attached in the remote controller accessory The figures are NOT always necessarily the voltage to ground DC 12V S3 terminal has DC 24 V against S2 terminal However between S3 and S1 these terminals are NOT electrically insulated by the transformer or other device Caution Be sure to install N Line Without N Line it could cause damage to the unit Notes 1 Wiring size must comply with the applicable local a
104. 5 88 5 8 REFRIGERANT PIPING Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit OCH415G Height difference Max 30m Piping length Max 50m 10 Service Ref PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK PUHZ P140YHA UK PUHZ P140YHAR1 UK Mode Cooling Heating Cooling Heating 2 5 o a gt Power supply phase cycle voltage 3phase 50Hz 400V Running current 6 18 6 09 7 92 7 58 Max current External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model TNB306FPNM TNB306FPNMT YHAR2 Motor output 3 4 3 9 Starter type Inverter Protection devices HP switch Discharge thermo Comp surface thermo YHAR1 R2 Crankcase heater w 30 Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 2 Fan motor output kW 0 060 0 060 Airflow m min CFM 100 3 530 Defrost method Reverse cycle Noise level Cooling dB Heating dB Dimensions w mm in 950 37 3 8 D mm in 330 30 13 1 3 16 H mm in 1 350 53 1 8 Weight kg Ibs 101 223 Refrigerant R410A Charge kg Ibs 4 5 9 9 Oil Model L 0 87 FV50
105. 58 6666 Dm ie T WHT 172 q X Tg 1 1 31 5 EE 3yA TH32 TH7 6 TH3 LEV A CNVMNT CNMNT Em Em ER BLK RED WHT WHT WHT WHT ue a ET E z 9990 CNF2 8 oooooooooooooo Pla z A v 59 84 1 CNM 288 a WS EI YLW WHT B peat BL et teed CN2 CN52C a 3 x3 m i WHT WHT RED Ess 2 TRANS 3 oa C 2 Qr o ies U 2 F3 t t t cef F2 CNAC Ew 2 8 5 5 St win nar nm svi 5 CNS F4 2154 5 2 55 BS GRN BLU CH 55 WHT WH ere 4 GENI GRY WHT 125 140 only 2154 Sv Hau KS X3 WHT RED OCH415G X1 MODEL SELECT The black square lB indicates a switch position MODEL SW6 SW5 6 2 CY Hie ON EN BB oN E a gt 5 2 100V
106. 6832 flashes Transmission is not possible Error display 3 ERC and the number of data errors are displayed Data error has occurred Ale Ww m ERROR CODE Tog RL There might be noise or interference on the transmission path or the indoor unit The number of data errors is the difference between the number of bits sent from or other remote controllers are defective Check the transmission path and other the remote controller and the number actually transmitted through the transmis controllers sion path If such a problem is occurring the transmitted data is affected by noise etc Check the transmission path te When the number of data errors is 02 Transmission data from remote controller nin nin Transmission data on transmission path To cancel remote controller diagnosis Press the CHECK button for 5 seconds or more Remote controller diagnosis will be cancelled PLEASE WAIT and operation lamp will flash After approximately 30 seconds the state in effect before the diagnosis will be restored OCH415G 47 11 3 6 Self diagnosis lt Wireless remote controller gt lt In case of trouble during operation gt When a malfunction occurs to air conditioner both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop lt Malfunction diagnosis method at maintenance service gt CHECK display ON OFF button CHECK
107. 7 FV50S ru Pipe size Liquid mm in 9 52 3 8 Gas mm in 15 88 5 8 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit Service Ref Height difference Max 30m Piping length Max 50m PUHZ P100VHA4 UK Mode Cooling Heating OUTDOOR UNIT Power supply phase cycle voltage Single 50Hz 230V Running current 13 98 14 70 Max current 28 External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model TNB220FLHMT Motor output 2 9 Starter type Inverter Protection devices HP switch Comp surface thermo Crankcase heater w Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 1 Fan motor output kW 0 060 Airflow m min CFM 60 2120 Defrost method Reverse cycle Noise level Cooling dB 50 Heating dB 54 Dimensions w mm in 950 37 3 8 D mm in 330 30 13 1 3 16 H mm in 943 37 1 8 Weight kg Ibs 75 165 Refrigerant R410A Charge kg Ibs 3 0 6 6 Oil Model L 0 87 FV50S REFRIGERANT PIPING Pipe size O D Liquid mmi in 9 52 3 8 mm in
108. BA 2 Phase Hz 1 50 1 50 1 50 Volts Input 0 14 0 13 0 14 0 13 0 15 0 14 0 16 0 15 Amperes 0 94 0 87 0 94 0 87 1 00 0 94 1 07 1 00 Outdoor unit Electrical circuit PUHZ P100VHA2 PUHZ P100VHA3 PUHZ P100YHA PUHZ P100VHA4 PUHZ P100YHA2 PUHZ P125VHA2 PUHZ P125VHA3 PUHZ P125YHA PUHZ P140VHA2 PUHZ P140VHA3 PUHZ P140YHA Phase Hz 1 3 50 1 3 50 1 8 50 1 8 50 Volts 230 400 230 400 230 400 230 400 Current 12 26 4 78 12 62 5 05 13 98 5 00 14 70 5 26 17 37 6 18 16 74 6 09 22 48 1 7 92 21 31 7 58 Discharge pressure 2 90 2 57 29 6 26 2 2 90 2 57 29 6 26 2 2 68 2 56 27 3 26 1 2 79 2 75 28 5 28 1 Suction pressure 0 92 0 62 9 4 6 3 0 92 0 62 9 4 6 3 0 86 0 68 8 8 6 9 0 79 0 64 8 1 6 5 Discharge temperature 72 7 75 5 72 7 75 5 67 8 64 5 72 7 70 8 Condensing temperature 48 6 41 4 48 6 41 4 45 5 43 4 47 0 47 2 Refrigerant circuit Suction temperature 10 1 0 1 10 1 0 1 6 8 1 3 4 4 1 0 Ref pipe length 5 5 5 5 5 5 5 5 Intake air D B 27 20 27 20 27 20 27 20 temperature Wp 19 19 15 19 15 19 15 Discharge air D B temperature Indoor side 14 8 13 6 Intake air D B 35 35 temperature p W B
109. BA2R1 UK OCH412 OCB412 PCA RP50 60 71 100 125 140GA PCA RP50GA2 PCA RP50 60 71 100 125 140GA 1 PCA RP50GA2 1 OC328 PCA RP71 125HA PCA RP71 125HA 1 06329 PKA RP50GAL PKA RP50GAL 1 OC330 PKA RP60 71 100FAL PKA RP50FAL2 PKA RP60 71 100FAL 1 PKA RP50FAL2 tH OC331 PEAD RP50 60 71 125 140EA PEAD RP100EA2 PEAD RP50 60 71 125 140EA 1H UK PEAD RP100EA2 1 UK HWE0521 PEAD RP60 71 100GA PEAD RP60 71 100GA 1 UK HWE0506 PKA RP60 71 100KAL PKA RP60 71 100KAL TH OCH452 OCB452 PKA RP35 50HAL PKA RP35 50HAL OCH453 OCB453 PCA RP50 60 71 100 125 140KA PCA RP50 60 71 100 125 140KA OCH454 OCB454 PEAD RP35 50 60 71 100 125 140JA L PEAD RP35 50 60 71 100 125 140JA L U HWE08130 BWE08240 3 SAFETY PRECAUTION 3 1 ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal all supply circuits must be disconnected Preparation before the repair service Prepare the proper tools Prepare the proper protectors Provide adequate ventilation After stopping the operation of the air conditioner turn off the power supply breaker Discharge the condenser before the work involving the electric parts Precautions during the repair service Do not perform the work involving the electric parts with wet hands Do not pour water into the electric parts
110. CEDURE 129 PARTS CATALOG OCB415 fir SLIM Service Ref PUHZ P100VHA2 UK PUHZ P140VHA3R1 UK PUHZ P125VHA2 UK PUHZ P140VHAS3R2 UK PUHZ P125VHA21 UK PUHZ P140VHA3R3 UK PUHZ P140VHA2 UK PUHZ P100YHA UK PUHZ P140VHA21 UK PUHZ P100YHAR1 UK PUHZ P100VHA3 UK PUHZ P100YHA2 UK PUHZ P100VHA3R1 UK PUHZ P100YHA2R1 UK PUHZ P100VHA3R2 UK PUHZ P125YHA UK PUHZ P100VHA4 UK PUHZ P125YHAR1 UK PUHZ P125VHA3 UK PUHZ P125YHAR2 UK PUHZ P125VHA3R1 UK PUHZ P140YHA UK PUHZ P125VHA3R2 UK PUHZ P140YHAR1 UK PUHZ P125VHA3R3 UK PUHZ P140YHAR2 UK PUHZ P140VHA3 UK 1 TECHNICAL CHANGES PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK Power circuit board P B has been changed PUHZ P100VHA3R2 UK gt PUHZ P100VHA4 UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK Electrical parts Controller circuit board C B Power circuit board P B and Noise filter circuit board N F have been changed PUHZ P125VHA3R2 UK PUHZ P140VHA3R2 UK PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK Compressor has been changed PUHZ P100YHA UK PUHZ P125VHA3R3 UK PUHZ P140VHA3R3 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK PUHZ P100YHAR1 UK PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P140YHA UK PUHZ P140YHAR1 UK Power circuit board P B has been changed Controller circuit board C B has been changed S W version up PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK PUHZ P125VHA3R1 UK gt PUHZ P125VHA3R2 UK
111. CN4 SV1 CH A Crankcase heater Pe P125 P140 only gp SV2 Bypass valve P125 P140 only 2184 Four way valve CN2 Connect to the outdoor power circuit board Reception from power circuit board Zero cross signal 0 5V DC 9 0 Not used 9 6 16V DC 16V DC u TH cNAC to Power supply for outdoor controller circuit board 230V AC to Power supply for indoor and outdoor unit connection wire 230V AC DIP a Uim 51 52 230V AC D CNF1 CNF2 Connect to the fan motor 250 330V DC 15V DC 0 6 5V DC CNDC 280V DC Communication power supply O D71 Voltage Outdoor power board 54v DC 15V DC When stopped 7 5V DC When operated 0V 15V pulse OCH415G 78 Outdoor controller circuit board PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK SW1 Forced defrost SW7 detect history record reset Demand control setting PUHZ P125VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P125YHAR2 UK CNDM Q to Input of low level sound priority mode Q to G Input of external contact point CAUTION TEST POINT is high voltage PUHZ P140VHA3R2 UK PUHZ P140VHA3R3 UK PUHZ P140YHA UK PUHZ P140YHAR1 UK PUHZ P140YHAR2 UK CN51 External signal output Compressor
112. Defective outdoor controller circuit board Defective indoor controller board Influence of electromagnetic noise Defective outdoor power circuit board Defective indoor power board Fix the breaking or poor contact of the indoor outdoor connecting wire Set the refrigerant address to 0 In case of the multiple grouping System recheck the refrigerant address again Replace the outdoor controller circuit board Replace the outdoor controller circuit board Replace the indoor controller board of the indoor unit which does not operate Not abnormal There may be the influence of electromagnetic noise Check the transmission wire and get rid of the causes Replace the outdoor power circuit board Replace the indoor power board Symptoms Nothing is displayed on the remote controller Diagnosis flow LED display of the indoor controller board LED1 LED LED3 Inspection method and troubleshooting Check the voltage of the terminal block TB6 of the remote controller DC 10V to DC 16V Defective remote controller Check the status Lighting of the LED2 Breaking or poor contact of the remote controller wire Blinking Check the status of the LED2 after disconnecting the remote controller wire from the terminal block TB5 of the indoor unit Check the status _Lighting of the LED2 The
113. Do not touch the refrigerant Do not touch the hot or cold areas in the refrigerating cycle When the repair or the inspection of the circuit needs to be done without turning off the power exercise great caution not to touch the live parts OCH415G 3 3 2 CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Use new refrigerant pipes In case of using the existing pipes for R22 be careful with the followings Be sure to clean the pipes and make sure that the insides of the pipes are clean Change flare nut to the one provided with this product Use a newly flared pipe Avoid using thin pipes Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc Use the following tools specifically designed for use with R410A refrigerant Make sure that the inside and outside of refrige rant piping is clean and it has no contaminants such as sulfur oxides dirt shaving particles etc which are hazard to refrigerant cycle In addition use pipes with specified thickness The following tools are necessary to use R410A refrigerant Tools for R410A Flare tool Size adjustment gauge Vacuum pump adaptor Electronic refrigerant charging scale Gauge manifold Charge hose Gas leak detector Torque wrench Con
114. Dry mode Lower limit 19 C 30 C Upper limit 30 C 19 C Lower limit 17 C 28 C Upper limit 28 C 17 C Lower limit 19 C 28 C Upper limit 28 19 C Heating mode Automatic mode OCH415G 4 3 Mode selection setting 1 Remote controller main sub setting To switch the setting press the ON OFF button Main The controller will be the main controller Sub The controller will be the sub controller 2 Use of clock setting switch the setting press the ON OFF button ON The clock function can be used OFF The clock function cannot be used To switch the setting press the CO ON OFF button Choose one of the followings WEEKLY TIMER initial setting The weekly timer can be used AUTO OFF TIMER The auto off timer can be used SIMPLE TIMER The simple timer can be used TIMER MODE OFF The timer mode cannot be used Whenthe use of clock setting is OFF the WEEKLY TIMER cannot be used 4 Contact number setting for error situation To switch the setting press the ON OFF button CALL OFF The set contact numbers are not displayed in case of error CALL The set contact numbers are displayed in case of error The contact number can be set when the display is as shown on the left Setting the contact numbers To set the contact numbers follow the following procedures Move the flashing cursor to
115. ERATING PROCEDURE PHOTOS 9 Removing the LEV 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the control box Refer to procedure 3 4 Remove the valve bed Refer to procedure 8 5 Remove the side panel R Refer to procedure 8 6 7 8 Remove the LEV coil See Photo 8 Recover refrigerant Remove the welded part of LEV Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the LEV cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 10 Removing the high pressure switch 63H Photo 10 1 Remove the service panel See Figure 1 Remove the top panel See Figure 1 Remove the valve bed Refer to procedure 8 2 Lead wire of 3 4 Remove the side panel R Refer to procedure 8 5 6 high pressure switch Pull out the lead wire of high pressure switch Disconnect the lead wire of 63H Yellow on the controller circuit board 7 Remove the control box Refer to procedure 3 8 Loosen the clamp on the separator and unbind the lead wires 9 Recover refrigerant 10 Remove the welded part of high pressure switch Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing
116. HA and P100 125 140YHA models Check for the switch settings for Model Select on the outdoor controller circuit board ACTM IGBT error Undervoltage When Compressor is running DC bus voltage stays at 310V or lower for consecutive 10 seconds P100 140V models only Q Incorrect switch settings on the outdoor controller circuit board for model select Disconnection or loose connection of CNAF on the outdoor power circuit board ACT Module P VHA2 VHA3 R1 Q Defective ACTM P VHA2 VHA3 R1 Defective outdoor power circuit board Defective outdoor controller circuit board Correction of a model select Check CNAF wiring P VHA2 1 1 Replace ACTM P VHA2 VHA3 R1 Replace outdoor power circuit board Replace outdoor controller circuit board Overheat Abnormal operation protection if outdoor pipe thermistor TH3 detects 70 C or more during compressor Defective outdoor fan fan motor or short cycle of outdoor unit during cooling operation Defective outdoor pipe thermistor TH3 9 Defective outdoor controller board Check outdoor unit air passage the power off and on again to check the error code If U4 is displayed follow the U4 processing direction Abnormal Compressor overcurrent interruption When compressor locked if overcurrent of DC bus or compressor is detected within 30 seconds after compressor st
117. Indoor unit Cond Eva pipe temperature Unit No 2 39 88 1 44 Indoor unit Cond Eva pipe temperature Unit No 3 39 88 1 45 Indoor unit Cond Eva pipe temperature Unit No 4 39 88 1 46 47 48 Thermostat ON operating time 0 999 Minutes 49 Test run elapsed time 0 120 Minutes lt Not possible to activate maintenance mode during the test run OCH415G 120 m 8 oe Y Request content pescnipiion Unit Remarks Display range 50 Indoor unit Control state Refer to 14 2 1 Detail Contents in Request Code 51 Outdoor unit Control state Refer to 14 2 1 Detail Contentsin Request Code 52 Compressor Frequency control state Refer to 14 2 1 Detail Contents in Request Code 53 Outdoor unit Fan control state Refer to 14 2 1 Detail Contents in Request Code _ 54 Actuator output state _ 55 Error content U9 _ 56 57 58 59 60 Signal transmission demand capacity 0 255 96 61 Contact demand capacity Refer to 14 2 1 Detail Contents in Request Code 62 External input state silent mode etc Refer to 14 2 1 Detail Contents in Request Code 63 64 65 66 67 68 69 70 Outdoor unit Capacity setting display Refer to 14 2 1 Detail Contents in Request Code 71 Outdoor un
118. K button twice to perform self diagnosis See the table below for the contents of LCD display Contents of trouble LCD Contents of trouble Abnormality of room temperature thermistor U1 UP Malfunction outdoor unit Abnormality of pipe temperature thermistor Liquid F3 F9 Malfunction outdoor unit Abnormality of drain sensor Float switch connector open E0 E5 Remote controller transmitting error Drain overflow protection is working E6 EF Indoor outdoor unit communication error Freezing overheating protection is working No error history Abnormality of pipe temperature No applied unit Abnormality of pipe temperature thermistor Cond Eva Forced compressor stop due to water leakage abnormality Abnormality of indoor controller board Abnormality of refrigerant circuit See the table below for details of the LED display LED 1 2 3 on the indoor controller board LED1 microprocessor power supply Lights when power is supplied Lights when power is supplied for wired remote controller LED2 remote controller The indoor unit should be connected to the outdoor unit with address 0 setting LED3 indoor outdoor communication Flashes when indoor and outdoor unit are communicating OCH415G 42 MITSUBISHI ELECTRIC Fe O NJ ON OFF i TEMP 0 264 FAN AUTOSTOP pO jpne e MODE VANE AUTOSTAR am
119. LEASE WAIT Normal ept being displayed on the AS emote controller will be displayed The start up diagnosis will during the start up be over in around 2 minutes 2to6 diagnosis after turning minutes on the main power re any error codes displayed on the emote controller Check the LED display of the outdoor controller circuit board displayed on the LED fes e Mis wiring of indoor Refer to Self diagnosis outdoor connecting action table in order to wire solve the trouble NO Breaking of indoor outdoor connecting In case of communication wire S3 errors the display of Defective indoor remote controller may not controller board match the LED display of Defective outdoor the outdoor unit controller circuit board Defective indoor controller board Defective remote controller OCH415G 63 LED display of the indoor controller board Symptoms Nothing is displayed on the remote controller O LED3 O Inspection method and Diagnosis flow troubleshooting Check the voltage between S1 and S2 on the terminal block TB4 of the indoor unit which is used to connect the indoor unit and the outdoor unit AC 198V to AC 264V ius Check the voltage among L Ls and N on the terminal block TB1 of the YES outdoor power circuit board AC 198V to AC 264V Troubles concerning Check the power wirin
120. MITSUBISHI ELECTRIC Changes for the Better SPLIT TYPE HEAT PUMP AIR CONDITIONERS SERVICE MANUAL Outdoor unit Model names PUHZ P100VHA2 PUHZ P125VHA2 PUHZ P140VHA2 PUHZ P100VHA3 PUHZ P125VHA3 PUHZ P140VHA3 PUHZ P100VHA4 PUHZ P100YHA PUHZ P100YHA2 PUHZ P125YHA PUHZ P140YHA Service Ref Refer to page 2 PUHZ P100VHA4 UK PUHZ P100YHA2 UK July 2013 No OCH415 REVISED EDITION G Revision PUHZ P100YHA2R1 UK has been added in REVISED EDITION G Some descriptions have been modified Please void OCH415 REVISED EDITION F Note ROHS compliant products have lt G gt mark on the spec name plate CONTENTS 1 TECHNICAL CHANGES 2 2 REFERENCE MANUAL n 3 3 SAFETY PRECAUTION 3 ASEEATURES z n 7 5 SPECIFICATIONS 8 12 7 OUTLINES AND DIMENSIONS 15 8 WIRING DIAGRAM 23 9 WIRING SPECIFICATIONS 30 10 REFRIGERANT SYSTEM DIAGRAM 35 11 TROUBLESHOOTING 38 12 FUNCTION SETTING 101 13 EASY MAINTENANCE FUNCTION 114 14 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 118 15 DISASSEMBLY PRO
121. Not available OCH415G 102 12 1 1 Selecting functions using the wired remote controller lt PAR 31MAA gt lt Service menu gt Maintenance password is required D Select Service from the Main menu and press the button At the main display the menu buttom and select Service to make the maintenance setting Main Main menu 3 3 Maintenance Initial setting gt Service Main display 4 ee When the Service menu is selected a window will appear asking for the pass word To enter the current maintenance password 4 numerical digits move the cursor to the digit you want to change with the F1 22 button Cw Set each number 0 through 9 with the F4 button Cw Then press the 2 button Note The initial maintenance password is 9999 Change the default password as necessary to prevent unauthorized access Have the password available for those who need it If you forget your maintenance password you can initialize the password to the default password 9999 by pressing and holding the F1 and F2 buttons simultaneously for three seconds on the maintenance password setting screen 000 Service menu Enter maintenance password 999 Select Y 9 If the password matches the S
122. OR UNIT INDOOR UNIT INDOOR UNIT INLET TEMP H EXC TEMP FILTER USE H 6 Press the FILTER button to confirm the setting Display example for accumulated operating time I ieplav 0 2 7 Blinki Display 2 ene Waiting for response I After approx 12 340 hours 10 seconds 7 Data is displayed on the display at To check the data for each item repeat steps 5 to 7 8 To cancel maintenance mode press the TEST button for 3 seconds or press the D ON OFF button mg Refrigerant address Single refrigerant system Multi refrigerant system group control Inthe case of single refrigerant system the refrigerant address Up to 16 refrigerant systems 16 outdoor units can be con is 00 and no operation is required nected as a group by 1remote controller To check or set the Simultaneous twin triple units belong to this category refrigerant addresses single refrigerant system 1 1 Twin Refrigerant Refrigerant Refrigerant Refrigerant Refrigerant Refrigerant address address address address address 00 address 00 Outdoor unit Indoor unit 01 Remote controller Outdoor unit Indoor unit 01 15 Outdoor unit Indoor unit 01 02 Outdoor unit Indoor unit 01 01 Outdoor unit Indoor unit 01 00 Outdoor unit Indoor unit 01 Remote controller Indoor unit 02 Remote controller OCH415G 116 13
123. PAR 21MAA The setting of the following remote controller functions can be changed using the remote controller function selection mode Change the setting when needed Item 1 Item 2 Item 3 Setting content 1 Change Language Language setting to display Display in multiple languages is possible CHANGE LANGUAGE 2 Function limit Operation function limit setting operation lock LOCKING FUNCTION Setting the range of operation limit operation lock FUNCTION SELECTION Setting the use or non use of automatic operation mode Temperature range limit setting LIMIT TEMP FUNCTION Setting the temperature adjustable range maximum minimum 3 Mode selection MODE SELECTION 1 2 Use of automatic mode setting SELECT AUTO MODE 3 1 Remote controller main sub setting CONTROLLER MAIN SUB Selecting main or sub remote controller When two remote controllers are connected to one group one controller must be set to sub 2 Use of clock setting CLOCK Setting the use or non use of clock function 3 Timer function setting WEEKLY TIMER Setting the timer type 4 Contact number setting for error situation CALL Contact number display in case of error Setting the telephone number 4 Display change DISP MODE SETTING 2 Room air temperature display setting ROOM TEMP DISP SELECT 1 Temperature display C F setting TEMP MODE C F
124. S Pipe size O D Liquid mm in 9 52 3 8 Gas mm in 15 88 5 8 Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit OCH415G Height difference Max 30m Piping length Max 50m 11 6 DATA 6 1 REFILLING REFRIGERANT CHARGE R410A kg Piping length one way Initial Service Ref 20m PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK 30m 40m PUHZ P125VHA2 UK PUHZ P125VHA21 UK PUHZ P125VHA3 UK PUHZ P125VHA3R1 UK PUHZ P125VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P125YHAR2 UK charged PUHZ P140VHA2 UK PUHZ P140VHA21 UK PUHZ P140VHA3 UK PUHZ P140VHA3R1 UK PUHZ P140VHA3R2 UK PUHZ P140VHA3R3 UK PUHZ P140YHA UK PUHZ P140YHAR1 UK PUHZ P140YHAR2 UK 6 2 COMPRESSOR TECHNICAL DATA PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK Service Ref Additional charge is required for pipes longer than 20 or 30m PUHZ P125 140VHA2 UK PUHZ P125 140VHA2 UK PUHZ P125 140VHA3 UK PUHZ P125 140VHA3R1 UK PUHZ P125 140VHA3R2 UK at 20 C PUHZ P125 140VHA3R3 UK Compressor model TNB220FLHMT TNB306FPGM TNB306FPGMT Winding Resistance 9 PUHZ P100YHA UK PUHZ
125. Setting the temperature unit C or F to display Setting the use or non use of the display of indoor suction air temperature 3 Automatic cooling heating display setting AUTO MODE DISP C H Setting the use or non use of the display of Cooling or Heating display during operation with automatic mode Function selection flowchart Refer to next page 1 Stop the air conditioner to start remote controller function selection mode 2 Select from item1 gt 3 Select from item2 gt 4 Make the setting Details are specified in item3 gt 5 Setting completed gt 6 Change the display to the normal one End Detailed setting 4 1 CHANGE LANGUAGE setting The language that appears on the dot display can be selected Press the button to change the language Japanese JP English GB German D Spanish E Russian RU Italian Chinese CH amp French F 4 2 Function limit 1 Operation function limit setting operation lock To switch the setting press the OON OFF button nol All operation buttons except 4 ON OFF button are locked no2 All operation buttons are locked OFF Initial setting value Operation lock setting is not made To make the operation lock setting valid on the normal screen it is necessary to press buttons Press and hold down the FILTER and ON OFF buttons at the same time for 2
126. Turn the power off and on again to check Replace outdoor controller circuit board if abnormality is displayed again Serial communication error 1 Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective 2 Abnormal if communication between outdoor controller circuit board and M NET board is not available Breaking of wire or contact failure of connector CN2 between the outdoor controller circuit board and the outdoor power circuit board Breaking of wire or contact failure of connector CN4 between the outdoor controller circuit board and the outdoor power circuit board Defective communication circuit of outdoor power circuit board Defective communication circuit of outdoor controller circuit board for outdoor power circuit board Breaking of wire or contact failure of connector between outdoor controller circuit board and M NET board Contact failure of M NET board power supply line 9 Noise has entered into M NET transmission wire Check connection of each connector CN2 and CN4 between the outdoor controller circuit board and the outdoor power circuit board 9 Replace outdoor power circuit board Replace outdoor controller circuit board Check disconnection looseness or breaking of connection wire between outdoor controller circuit board CNMNT and M NET board CN5 Check disconnection looseness or breaking of co
127. UBISHI ELECTRIC TEST FUN EL I teme In case of test run the OFF timer will be activated and the test run will automatically stop after 2 hours The room temperature display section shows the pipe temperature of indoor units during the test run Check that all the indoor units are running properly in case of simultaneous twin and triple operation Malfunctions may not be displayed regardless of incorrect wiring 1 After turning on the power supply the system will go into start up mode PLEASE WAIT will blink on the display section of the room temperature and lamp green of the remote controller will blink As to INDOOR BOARD LED LED 1 will be lit up LED2 will either be lit up in case the address is 0 or turned off in case the address is not 0 LEDS will blink As to OUTDOOR BOARD LED LED1 green and LED2 red will light up After the start up mode of the system finishes LED2 red will be turned off If OUTDOOR BOARD LED is digital display and will be displayed alternately every second f one of the above operations does not function correctly the causes written below should be considered Find causes from the symptoms The below symptoms are under test run mode start up in the table means the display status of 1 written above Symptoms in test run mode i UTDOOR
128. YHA2 R1 Replace outdoor noise filter circuit board P YHA R1 R2 YHA2 R1 Replace outdoor power circuit board Replace outdoor controller circuit board Abnormal power synchronous signal No input of power synchronous signal to power circuit board Power synchronous signal of 44 Hz or less or 65 Hz or more is detected on power circuit board OCH415G Distortion of power source voltage Noise superimposition Disconnection or loose connection of earth wiring Disconnection or loose connection of CN2 on the outdoor power circuit board controller circuit board Defective power synchrous signal circuit in outdoor controller circuit board Defective power synchrous signal circuit in outdoor power circuit board 54 Check the field facility for the power supply Check earth wiring Check CN2 wiring Replace outdoor controller circuit board Replace outdoor power circuit board Continue to the next page From the previous page Error Code Abnormal points and detection method Case Judgment and action Detailed codes PFC error Overvoltage Undervoltage Overcurrent PFC detected any of the fol lowings a Increase in DC bus voltage to 420V b Decrease in PFC control voltage to 12V DC or lower c Increase in input current to 50A peak For models equipped with single phase PFC only Not applicable for P100 125 140V
129. a 6 While Maintenance monitor is displayed press the CHECK button for seconds to return to maintenance mode 7 To return to normal mode press the 1 ON OFF button OCH415G 119 14 2 REQUEST CODE LIST Certain indoor outdoor combinations do not have the request code function therefore no request codes are displayed 2 8 T Y Request content Description Unit Remarks Display range 0 Operation state Referto 14 2 1 Detail Contents in Request Code _ 1 Compressor Operating current rms 0 50 A 2 Compressor Accumulated operating time 0 9999 10 hours 3 Compressor Number of operation times 0 9999 100 times 4 Discharge temperature TH4 or TH32 3 217 5 Outdoor unit Liquid pipe 1 temperature TH3 40 90 6 Outdoor unit Liquid pipe 2 temperature 40 90 7 Outdoor unit 2 phase pipe temperature TH6 39 88 8 9 Outdoor unit Outside air temperature TH7 39 88 10 Outdoor unit Heat sink temperature TH8 40 200 11 12 Discharge super heat SHd 0 255 13 Sub cool SC 0 130 14 15 16 Compressor Operating frequency 0 255 Hz 17 Compressor Target operating frequency 0 255 Hz 18 Outdoor unit Fan output step 0 10 Step 19 Outdoor 1 speed 0
130. acitor 9 POWER Connect to the MODULE smoothing capacitor CB10 CB2 ee Outdoor power circuit board Brief Check of POWER MODULE Usually they state of being short circuited if they are broken PUHZ P100YHA2 UK Measure the resistance in the following points connectors etc If they are short circuited it means that they are broken 1 Check of DIODE MODULE L1 P1 L2 IP1 L1 IN1 22 1 ES IN1 2 Check of DIP IPM 2 2 P2 IW N2 U N2 2 Note The marks L1 112 L3 1 2 1 1 IP2 U V and W shown in the diagram are not actually printed on the board TB P3 TB U TB V TB W Connect to the DCL Connect to the compressor MC 10V 400V AC Voltage among phases Diode module Connect to the DCL REN 1 z EE o TAB connector m on X52CA t M pus Connect to the si eel Dg lee sip Je 255557 RS resistor Tio BHOO 9 pL 9 E ONG TB L1 TB L2 TB L3 CN4 Connect to the Detection of primary Thermis
131. acity save 100 is displayed 0 100 When the capacity is 10096 hundreds digit tens digit and ones digit are displayed by turns Example When 10096 0 5 secs 0 55 2 secs 11 00 gt Error postponement code history 2 of outdoor unit Postponement code display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in case of no postponement Code display Error postponement code history 3 of outdoor unit Postponement code display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in case of no postponement Code display Error code history 3 Oldest Alternate display of abnormal unit number and code When no error history 0 and are displayed by turns Code display Error thermistor display When there is no error thermistor is displayed 3 Outdoor pipe temperature Liquid TH3 6 Outdoor pipe temperature 2 phase TH6 7 Outdoor outside temperature TH7 8 Outdoor heatsink TH8 Code display Operation frequency on error occurring 0 255 0 255 When it is 100Hz or more hundreds digit tens digit and ones digit are displayed by turns Example When 125Hz 0 5 secs 0 55 2 secs 11 gt 25 gt Fan step o
132. airflow direction so that the unit capacity will be lowered Sound comes out from the air conditioner escaping sound is heard sometimes This is not a malfunction This is the sound which is heard when the flow of refrigerant in the air conditioner is switched Acracking sound is heard sometimes This is not a malfunction This is the sound which is heard when internal parts of units expand or contract when the temperature changes A buzzing sound is heard sometimes This is not a malfunction This is the sound which is heard when the outdoor unit starts operating Aticking sound is heard from the outdoor unit sometimes This is not a malfunction This is the sound which is heard when the blower of the outdoor unit is controlling the airflow amount in order to keep the optimum operating condition A sound similar to water flowing is heard from the unit This is not a malfunction This is the sound which is heard when the refrigerant is flowing inside the indoor unit Something is wrong with the blower The fan speed does not match the setting of the remote controller during DRY operation No air comes out sometimes during DRY operation This is not a malfunction During the DRY operation the blower s ON OFF is controlled by the microcomputer to prevent overcooling and to ensure efficient dehumidification The fan speed cannot be set by the
133. amp or when the valve is locked sound can be heard No sound is heard when the pulse number moves from to in case coil is burnt out or motor is locked by open phase Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expan sion valve Opening a valve 74 3 How to attach and detach the coil of linear expansion valve lt Composition gt Linear expansion valve is separable into the main body and the coil as shown in the diagram below Stopper Main body Coil z Lead wire lt How to detach the coil gt Hold the lower part of the main body shown as A firmly so that the main body does not move and detach the coil by pulling it upward Be sure to detach the coil holding main body firmly Otherwise pipes can bend due to pressure lt How to attach the coil gt Hold the lower part of the main body shown as A firmly so that the main body does not move and attach the coil by inserting it downward into the main body Then securely attach the coil stop per to main body At this time be careful that stress is not added to lead wire and main body is not wound by lead wire If the stopper is not firmly attached to main body coil may be detached from the main body and that can cause defective operation of lin ear expansion valve To prevent piping stress be sure to attach the coil holding the main body of linear expansion valve firm
134. anges can set for different operation modes Operation lock Use to lock selected functions The locked functions cannot be operated Maintenance Auto descending panel Auto descending panel Optional parts Up Down you can do Manual vane angle Use to set the vane angle for each vane to a fixed position Initial setting Main Sub When connecting two remote controllers one of them needs to be designated as a sub controller Clock Use to set the current time Main display Use to switch between Full and Basic modes for the Main display The default setting is Full Contrast Use to adjust screen contrast OCH415G 110 Setting and display items Setting details Initial setting Display Make the settings for the remote controller related items as necessary details Clock The factory settings are Yes and 24h format Temperature Set either Celsius C or Fahrenheit F Room temp Set Show or Hide Auto mode Set the Auto mode display or Only Auto display Auto mode Whether or not to use the AUTO mode can be selected by using the button This setting is valid only when indoor units with the AUTO mode function are connected Administrator The administrator password is required to make the settings for the following items password Timer setting Energy save setting Weekly timer setting Restriction setting
135. any sources of noise or interference near the transmission path 9 To make additional settings in the FUNCTION SELECTION screen repeat the steps through Note After setting the modes 07 through 14 the modes 23 through 28 cannot be set continuously or vice versa In this case after completing the settings for the modes 07 through 14 or 23 through 28 go to the step 10 to finish setting and restart setting from the step 1 At this point wait for 30 seconds or more before restarting setting Otherwise the temperature may indicate 8 8 Complete function selection Hold down the mode is 15 to 28 and Do not operate the remote controller for at least 30 seconds after completing ES function selection No operations will be accepted even if they are made buttonssimultaneously for at least 2 seconds After a while the function selection screen will disappear and the air condi tioner OFF screen will reappear Note If a function of an indoor unit is changed by function selection after installation is complete make sure that a O mark etc is given in the Check column of Table 1 to indicate the change OCH415G 106 12 1 3 Selecting functions using the wireless remote controller Type C Functions can be selected with the wireless remote controller Function selection using wireless remote controller is available only for refriger ant system with wireless function Refrig
136. arts operating Stop valve is closed Decrease of power supply voltage Looseness disconnection or converse of compressor wiring connection Defective compressor Defective outdoor power board Open stop valve Check facility of power supply Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Check compressor Refer to 11 6 Replace outdoor power circuit board Compressor current sensor error or input current error Abnormal if compressor current sensor detects 1 5A to 1 5A during compressor operation This error is ignored in case of test run mode Abnormal if the input current of 38A is detected or the input current of 34A or more is detected for 10 seconds P100 140V Disconnection of compressor wiring Defective circuit of current sensor on outdoor power circuit board Correct the wiring U V W phase to compressor Refer to 11 9 Outdoor power circuit board Replace outdoor power circuit board Abnormal minutes However TH7 TH3 once OCH415G Low pressure if the following conditions are detected for 3 minutes continuously after compressor starts heating operation for 10 this abnormal detection is disregarded when the compressor driving time exceeds 30 minutes after power is on lt 4C TH5 Indoor room temperature 2 Thermistor TH3 Outdoor liquid pipe temperature TH5 Indoor cond
137. ating Operation Abnormal history clear Clear Normal off or operating Refrigerant address setting When power supply ON 456 The black square m indicates a switch position Test run Operating OFF Under suspension Test run mode setting Heating Cooling 1 Compulsory defrosting should be done as follows Change the DIP SW1 1 on the outdoor controller board from OFF to ON Compulsory defrosting will start by the above operation if these conditions written below are satisfied Heat mode setting 10 minutes have passed since compressor started operating or previous compulsory defrosting finished Pipe temperature is less than or equal 8C Compulsory defrosting will finish if certain conditions are satisfied Compulsory defrosting can be done if above conditions are satisfied when DIP SW1 1 is changed from OFF to ON After DIP SW1 1 is changed from OFF to ON there is no problem if DIP SW1 1 is left ON or changed to OFF again This depends on the service conditions Type of Action by the switch operation SY Switch Function ON OFF Effective timing No function Power failure automatic recovery 2 Auto recovery No auto recovery When power supply ON No function model select Refer to next page
138. ay Overvoltage Undervoltage L phase Power synchronizing Display Converter Fo PAM error error error open error signal error error 0 0 1 1 2 2 3 3 4 e 5 e e 6 e 7 e e e 8 e 9 e e A e e b e e e C e e d e e E e e e F 415 125 Contact demand capacity Request code 61 Data display 0 010 Setting content External input state Request code 62 Data display 0 010 in L Setting content Display Setting value Swit Setting SW72 0 096 1 5096 ON 2 7596 ON 3 10096 ON ON Input state Input present Display Contact demand Silent mode Spare 1 Spare 2 Input state input input input input 0 1 2 e 3 e e 4 e 5 e e 6 e e 7 e e e 8 e 9 e e A e e b e e e C e e d e e e e F e e Outdoor unit Capacity setting display Request code 70 Data display Capacity 9 35 10 50 11 60 14 71 20 100 25 125 28 140 40 200 50 250 Outdoor unit Setting information Request code 71 Data display 9 p sk OCH415G Setting information Setting information Setting information Display Defrost mode 0 Standard
139. below SW2 ON Code display Pipe temperature Liquid TH3 on error occurring 40 90 40 90 When the coil thermistor detects 0 C or below and temperature are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs 15 gt Discharge temperature TH4 or Comp surface temperature TH32 3 217 lt VHA2 1 VHA3 R1 R2 R3 YHA R1 R2 52 221 lt VHA4 YHA2 R1 gt 3 217 VHA20VHAS R1 R2 R3 YHA R1 R2 52 221 lt VHA4 YHA2 R1 gt When the temperature is 100 C or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 C 0 5 secs 1 gt 30 gt 0 5secs 2 secs Compressor operating current on error occurring 0 20 Error code history 1 latest Alternate display of abnormal unit number and code When no error history 0 and are displayed by turns Code display Error code history 2 Alternate display of error unit number and code When no error history 0 and are displayed by turns Code display Thermo ON time 0 999 0 999 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When 245 minutes 0 5 secs 0 55 5 2 secs 42 gt 45 gt
140. ble Unstable 9 9 s Air discharge temperature COOL HEAT i E Temperature Discharge temperature Indoor E COOL C HEAT C difference heat exchanger temperature 5 LE Filter operating time I Ume Indoor heat exchanger temperature S Decorative panel Good Cleaning required Indoor intake air temperature g Filter Good Cleaning required t Fan Good Cleaning required Fixed Hz operation may not be possible under the following tempera Heat exchanger Good Cleaning required ture ranges Sound vibration None Present A In cool mode outdoor intake air temperature is 40 or higher indoor intake air temperature is 23 C or lower The filter operating time is the time that has elapsed since the filter was reset B In heat mode outdoor intake air temperature is 20 C or higher or indoor intake air temperature is 25 C or lower If the air conditioner is operated at a temperature range other than the ones above but operation is not stabilized after 30 minutes or more have elapsed carry out inspection In heat mode the operation state may vary due to frost forming on the outdoor heat exchanger Cool mode Heat mode 45 p p 40 Inspection C Were ask us a co a co z Judgment Area Check item coo Hest Q a Normal No
141. board Replace ACT Module 2 1 Check compressor for electrical insulation Replace compressor Undervoltage error Instantaneous decrease in DC bus voltage to P VHA model 200V P YHA model 350V Decrease in power source voltage instantaneous stop Disconnection or loose connection of CN52C on the outdoor power circuit board controller circuit board P VHA3R2 VHA4 Disconnection or loose connection of CN52C on the outdoor noise filter circuit board controller circuit board P VHA2 VHA3 R1 Defective converter drive circuit of outdoor power circuit board P VHA20 VHA3 R1 R2 VHA4 amp Defective 52C drive circuit in outdoor power circuit board P VHA3R2 VHA4 noise filter circuit board P VHA2 1 VHA3 R1 amp P YHA R1 R2 YHA2 R1 Disconnection or loose connection of rush current protect resistor RS P YHA R1 R2 YHA2 R1 Defective rush current protect resistor RS P YHA R1 R2 YHA2 R1 Disconnection or loose connection of main smoothing capacitor CB P VHA2 1 VHA3 R1 R2 VHA4 CB1 CB2 P YHA R1 R2 9 Disconnection or loose connection of CN2 on the outdoor power circuit board controller circuit board P VHA2 VHA3 R1 R2 VHA4 Power circuit failure on DC supply for 18V DC output on outdoor controller circuit board P VHA2 0 VHA3 R1 R2 VHA4 Check the field facility for the power supply Check CN52C wiring P VHA2 VHA3 R1 R2 VHA4
142. ce manual for indoor unit OCH415G Check if indoor thermistors TH2 and 5 are not disconnected from holder Check if stop valve is open Check converse connection of extension pipe on plural units connection Check if indoor outdoor connecting wire is connected correctly on plural units connection 92 lt Outdoor unit operation monitor function gt When option part A Control Service Tool PAC SK52ST is connected to outdoor controller board CNM Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by control ling DIP SW2 on A Control Service Tool Operation indicator 2 Indicator change of self diagnosis SW2 setting Display detail Explanation for display ON 123456 lt Digital indicator LED1 working details gt Be sure the 1 to 6 in the SW2 are set to OFF 1 Display when the power supply ON 1 second When the power supply ON blinking displays by turns interval Wait for 4 minutes at the longest 2 When the display lights Normal operation Operation mode display Lighting LED1 88 m Initial setting The tens digit Operation mode gt The ones digit Relay output Display Operation Model Display pong un Compressor 4 way Solenoid valve OFF FAN C COOLING DRY H HEATING d DEFROSTING
143. ceiving error is detected by in door unit Check if indoor outdoor connecting wire is connected correctly Check if noise entered into indoor outdoor connecting wire or Indoor outdoor unit communication error transmitting error is detected by indoor unit power supply Check if noise entered into indoor outdoor controller board Indoor outdoor unit communication error signal receiving error is detected by outdoor unit Re check error by turning off power and on again Indoor outdoor unit communication error transmitting error is detected by outdoor unit 3 blinking Remote controller signal receiving error is detected by remote controller Check if connecting wire of indoor unit or remote controller is connected correctly Remote controller transmitting error is detected by remote controller GCheck if noise entered into transmission wire of remote controller Remote controller signal receiving error is detected by indoor unit GRe check error by turning off power and on again Remote controller transmitting error is detected by indoor unit 4 blinking Other error codes For details refer to error codes of the wired remote controller or check the displays on the A Control Service Tool PAC SK52ST which is connected to the outdoor controller board as shown on the page 78 Error code is not defined Be sure to replace the 4 way valve Check refrigerant pipes
144. charge temperature thermistor TH4 or TH32 exceeds 125 C or 110 C continuously for 5 minutes Abnormal if condenser evaporator temperature thermistor TH5 exceeds 40 C during defrosting and discharge temperature thermistor TH4 or TH32 exceeds 110 C 2 Abnormal if discharge super heat Cooling TH4 TH5 or TH32 5 Heating TH4 TH6 or TH32 TH6 increases All the conditions in A or B are detected simultaneously for 10 minutes continuously after 6 minutes past from compressor start up including the thermostat indication or recovery from defrosting Condition A gt Heating mode When discharge super heat is less than 70 deg When the TH6 temp is more than the value obtained by TH7 5 deg When the condensing temp of TH5 is less than 35 C Condition B During comp operation Cooling and Heating When discharge super heat is less than 80 deg in Cooling When discharge super heat is less than 90 deg in Heating When condensing temp of TH6 is more than 40 In Cooling only TH4 VHA2 1 VHA3 R1 2 VHA3R2 R3 VHA4 YHA R1 R2 YHA2 R1 OCH415G Over heated compressor operation caused by shortage of refrigerant Defective operation of stop valve Defective thermistor Defective outdoor controller board Defective action of linear expansion valve 52 Check intake super heat Check leakage of refrigerant Charge additiona
145. conds and could not transmit Error code E3 Remote controller receives transmitted data at the same time and compares the received and transmitted data Abnormal if these data are judged to be different 30 continuous times Error code E3 Abnormal if indoor controller board could not find blank of transmission path Error code E5 Indoor controller board receives transmitted data at the same time and compares the received and transmitted data Abnormal if these data are judged to be different 30 continuous times Error code E5 OCH415G 2 remote controllers are set as main In the case of 2 remote controllers Remote controller is connected with 2 indoor units or more Repetition of refrigerant address Defective transmitting receiving circuit of remote controller Defective transmitting receiving circuit of indoor controller board amp Noise has entered into transmission wire of remote controller 56 Q Set a remote controller to main and the other to sub Connect remote controller with only one indoor unit Change the address to a separate setting Diagnose remote controller a When RC OK is displayed remote controllers have no problem Turn the power off and on again to check When becoming abnormal again replace indoor controller board b When RC is displayed replace remote controller c When RC or ERC 00 66 is display
146. d electronic parts on M NET P C board may burn out 3 Use 2 core x 1 25 mm shield wire CVVS CPEVS for the transmission wire Transmission signals may not be sent or received normally if different types of transmission wires are put together in the same multi conductor cable Never do this because this may cause a malfunction 2288 SSS Grou remote controller Power supply unit for transmission wire A control remote controller It would be ok if M NET wire non polar 2 cores is arranged in addition to the wiring for A control alee A control remote controller X address 02 Refrigerant Refrigerant Refrigerant address 00 address 00 address 00 M NET M NET M NET address 01 4 address 03 aan A control remote controller 4 Earth only one of any appliances through M NET transmission wire shield wire Communication error may occur due to the influence of electromagnetic noise Ed error will appear on the LED display of outdoor unit 0403 error will appear on the central control remote controller Bad example Multi spot earthing of shield wire Central remote controller Power supply appliance M NET type outdoor M NET type outdoor M NET type outdoor Ns zT M NET transmission wire O Good example 1 Single spot earthing of shield wire
147. d swn TH7 TH6 TH3 Sz Sw coil g rad gt swi2 1 xi G9 LED3 tti 88688 m i 5 LED4 TH3 TH4 CNVMNT m M NET SUBSTRATE RED WHT WHT WHT WHT WHT St ND an ETAETA TA Sos BOOR peepee SEA HD i 1 CNM 14 8785 RED TABU L WHT T BV BLK 1 E OCH415G CY1 2 POWER SUPPLY 230V 50Hz 23 x1 MODEL SELECT The black square indicates a switch position SW5 6 or HEE OFF OFF 12345 2345678 6 1 3 x 2 P125 P140 x 3 SW5 1 t PUHZ P100VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P125VHA3R2 UK PUHZ P140VHA3R3 UK PUHZ P140VHA3R2 UK TH32 TH7 TH6 TH3 SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block Power Supply Indoor Outdoor P B Power Circuit Board SW9 Switch Function Switch MC Motor for Compressor Connection Terminal U V W Phase SWP Switch Pump Down MF1 MF2 Fan Motor LI Connection Terminal L Phase CN31 Connector
148. d by supplying power and stopping it It can not be turned on or off by remote control and temperature control is not possible Do not perform emergency heating operation for an extended period of time If the outdoor unit starts defrosting during this period cold air will blow out from the indoor unit Do not perform emergency cooling operation for more than 10 hours Neglecting this could result in freezing the heat exchanger in indoor unit 3 Emergency operation procedure Turn the main power supply off Turn on the emergency operation switch SWE on indoor controller board Set the shorting pins of emergency operation connector CN31 on outdoor controller board to ON Use SW4 2 on outdoor controller board to set the operation mode cooling or heating SW4 1 is not used SW4 CN31 Shorting pins ON Heating ON O 1 2 Cooling OFF Turning the main power supply on will start the emergency operation 4 Releasing emergency operation Turn the main power supply off SW4 Set the emergency operation switch SWE on indoor controller board to OFF ON Heating Set the shorting pins of emergency operation connector CN31 on outdoor controller board to OFF Set SW4 2 on outdoor controller board as shown in the right If shorting pins are not set on emergency operation connector CN31 the setting remains OFF 1 2 Cooling OCH415G 76 5 Operation data during emerg
149. de Note When you switch to function selection mode End check mode on the wireless remote controller s operation area the unit ends function selection mode automatically if nothing is input for 10 minutes or longer Operating instructions D Check the function settings Press the gt button twice continuously gt is lit and 00 blinks Press the temp button once to set 50 Direct the wireless remote controller toward the receiver of the indoor unit and press the button Set the unit number Press the temp button to set the unit number Press 01 to specify the indoor unit whose unit number is 01 Direct the wireless remote controller toward the receiver of the indoor unit and press the button By setting unit number with the button specified indoor unit starts performing fan operation Detect which unit is assigned to which number using this function If unit number is set to AL all the indoor units in same refrigerant system start performing fan operation simultaneously unit number that cannot be recognized by the unit is entered 3 beeps of 0 4 seconds will be heard Reenter the unit number setting If the signal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the unit number setting Select a mode Press the temp O button to set a mode Press 24 to turn on the function that raises the set temperature by 4 degree during h
150. de _ 166 Indoor unit SW5 information Undefined _ 167 189 190 Indoor unit Microcomputer version information Examples Ver 5 01 0501 Ver 191 Indoor unit Microcomputer version information sub No Auxiliary information displayed after version information Examples Ver 5 01 A000 A000 192 764 765 Stable operation Heat mode This request code is not provided to collect data It is used to fix the operation state 766 Stable operation Cool mode This request code is not provided to collect data It is used to fix the operation state This request code is not provided to collect data It is used to cancel the operation state that has been 767 Stable operation cancellation fixed by request codes 765 and 766 OCH415G 123 14 2 1 Detail Contents in Request Code Mme 00 LILI 1 Operation state Request code 0 Example Request code 004 Discharge temperature 69 C Refrigerant address 00 B Refrigerant address C Data display area D Request code display area Relay output state Power currently Data displa Displa Compressor
151. ded part can be removed easily by removing the right side panel Note 3 When installing the LEV cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes is not oxidized OCH415G 136 OPERATING PROCEDURE PHOTOS 10 Removing bypass valve coil SV and bypass valve Remove the service panel See Figure 1 Remove the top panel See Figure 1 Remove the valve bed Refer to procedure 8 Remove side panel R Refer to procedure 8 Remove the bypass valve coil fixing screw M5 x 6 Remove the bypass valve by sliding the coil upward LEV Disconnect the connector SV2 blue on the controller LEV coil LEV A circuit board in the control box Lead wire of high 8 Loosen the clamp on the separator and unbind the lead pressure switch wires High pressure switch 9 Recover refrigerant 10 Remove the welded part of bypass valve 1 2 3 4 5 6 7 Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel 11 Removing the high pressure switch 63H 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the valve bed Refer to procedure 8 4 Remove the side panel R Refer to procedure 8 5 6 Pull out the lead wire of high pressure switch Disconnect the lead wire of 63H Yellow on the
152. displayed on the screen No air comes out of the unit OCH415G The outdoor unit gets frosted when the outside temperature is low and the humidity is high DEFROSTING indicates the DEFROST operation is being performed to melt this frost The DEFROST operation ends in around 10 minutes at most 15 minutes During the DEFROST operation the indoor unit s heat exchanger becomes cold so the blower is stopped The up down vane will be automatically set to horizontal blow in order to prevent cold air from directly blowing out to human body The display will turn into STANDBY when DEFROST operation ends 67 Phone Calls From Customers How to Respond The room cannot be cooled or heated sufficiently Check the set temperature of remote controller The outdoor unit cannot be operated if the set temperature is not appropriate The outdoor unit operates in the following modes COOL When the set temperature is lower than the room temperature HEAT When the set temperature is higher than the room temperature Check if filters are not dirty and clogged If filters are clogged the airflow amount will be reduced and the unit capacity will be lowered See the instruction manual that came with the product for how to clean the filters Check there is enough space around the air conditioner If there are any obstacles in the air intake or air outlet of indoor outdoor units they block the
153. door unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of specified capacity Q 2 or more outdoor units have refrigerant address 0 In the case of group control Noise has entered into power supply or indoor outdoor unit connecting wire 51 Check disconnection or looseness or polarity of indoor outdoor unit connecting wire of indoor and outdoor units Check diameter and length of indoor outdoor unit connecting wire Total wiring length 80m including wiring connecting each indoor unit and between indoor and outdoor unit Also check if the connection order of flat cable is 51 52 53 Check the number of indoor units that connected to one outdoor unit If EA is detected Turn the power off once and on again to check Replace outdoor controller circuit board indoor controller board or indoor power board if abnormality occurs again Check if refrigerant addresses SW1 3 to SW1 6 on outdoor controller circuit board are overlapping in case of group control system Check transmission path and remove the cause The descriptions above are for EA Eb and EC Error Code lt Abnormalities detected while unit is operating gt Abnormal points and detection method Case Judgment and action High pressure High pressure switch 63H operated Abnormal if high pressure switch 63H operated during compressor operati
154. door unit fan protection stop 9 U6 Compressor overcurrent interruption Abnormal of power module 10 U7 Abnormality of superheat due to low discharge temperature 11 U9 UH Abnormality such as overvoltage or voltage shortage and 4 abnormal synchronous signal to main circuit Current sensor error 12 13 14 Others Other errors 1 If the beeper does not sound again after the initial 2 beeps to confirm the self check start signal was received and the OPERATION INDICATOR lamp does not come on there are no error records 2 If the beeper sounds 3 times continuously beep beep beep 0 4 0 4 0 4 sec after the initial two beeps to confirm the self check start signal was received the specified refrigerant address is incorrect OCH415G 49 11 4 SELF DIAGNOSIS ACTION TABLE lt Abnormalities detected when the power is turned on gt Note 1 Refer to indoor unit section for code P and code E Error Code Abnormal points and detection method Case Judgment and action No voltage is supplied to terminal block TB1 of outdoor unit a Power supply breaker is turned off b Contact failure or disconnection of power supply terminal c Open phase L or N phase Electric power is not supplied to power supply terminal of outdoor power circuit board a Contact failure of power supply terminal b Open phase on the outdoor power circuit board Disconnection of connector TABT or TABS LI or NI
155. e data of the sensor on main remote controller 2 Can be set only when the outdoor unit is an inverter type OCH415G 101 2 Functions available when setting the unit number to 01 03 or AL 07 in the case of wireless remote controller When setting functions for an indoor unit in an independent system set the unit number to 01 referring to setting the indoor unit number of Operating Procedure When setting functions for a simultaneous Twin Triple indoor unit system set the unit number to 01 to 03 for each indoor unit in the case of selecting different functions for each unit referring to setting the indoor unit number of Operating Procedure When setting the same functions for an entire simultaneous Twin Triple indoor unit system set refrigerant address to AL 07 in the case of wireless remote controller referring to setting the indoor unit number of Operating Procedure Initial setting Factory setting Not available ing 4 Way Ceilin Wall Function Settings INo eae ien Ceiling suspended mounted PEAD EA 2 PKA GAL PLA BA PCA GA 2 PCA KA PCA HA ie PKA HAL PKA KAL PSA GA Filter sign 100h 2500h No filter sign indicator Air flow Quiet Fan speed Standard High ceiling No of air outlets 4 directions 3 directions 2 directions Optional high efficiency Not supported Supported No vanes Vane No 3 setting PLA only Vane No 1 setting Vane No 2 setting Op
156. eat operation Direct the wireless remote controller toward the sensor of the indoor unit and press the button The sensor operation indicator will flash and beeps will be heard to indicate the current setting number Current setting number 1 1 beep 1 second 2 2 beeps 1 second each 3 3 beeps 1 second each mode number that cannot be recognized by the unit is entered 3 beeps of 0 4 seconds will be heard Reenter the mode number If the signal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the mode number Select the setting number Press the temp button to select the setting number 02 Not available Direct the wireless remote controller toward the receiver of the indoor unit and press the button The sensor operation indicator will flash and beeps will be heard to indicate the setting number Setting number 1 2 beeps 0 4 seconds each 2 2 beeps 0 4 seconds each repeated twice 3 2 beeps 0 4 seconds each repeated 3 times If a setting number that cannot be recognized by the unit is entered the setting will turn back to the original setting If the signal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the setting number Repeat steps and to make an additional setting without changing unit number Repeat steps to to change unit number and make function settings on it Compl
157. ecting wire excessive number of indoor units 4 units or more Miswiring of indoor outdoor unit connecting wire converse wiring or disconnection Startup time over Communication error except for outdoor unit OCH415G 93 SW2 setting Display detail The black square m indicates a switch position Explanation for display Pipe temperature Liquid TH3 40 90 40 90 When the coil thermistor detects O C or below and temperature are displayed by turns Example When 10 0 5 secs 0 5secs 10 gt 2 secs Discharge temperature TH4 or Comp surface temperature TH32 3 217 lt VHA2 1 VHA3 R1 R2 R3 YHA R1 R2 gt 52 221 lt VHA4 YHA2 R1 gt 3 217 lt VHA2q1 VHA3 R1 R2 R3 YHA R1 R2 gt 52 221 lt VHA4 YHA2 R1 gt When the discharge thermistor detects 100 C or more hundreds digit tens digit and ones digit are displayed by turns Example When 105 C 0 5 secs 1 gt 05 gt 0 5secs 2 secs Output step of outdoor FAN 0 10 The number of ON OFF times of com pressor 0 9999 0 9999 When the number of times is 100 or more hundreds digit tens digit and ones digit are displayed by turns Example When 42500 times 425 x100 times 0 5 secs 0 5secs 14 gt 25 gt
158. ection Terminal lt L1 L2 L3 Power Supply gt Sw8 Switch lt Function Switch gt 63H Hign Pressure Switch TB P1 P3 Connection Terminal SW9 Switch lt Function Switch gt TH3 Thermistor lt Liquid gt 52 52C Relay SWP Switch Pump Down TH6 Thermistor 2 Phase Pipe N F Noise Filter Circuit Board CN31 Connector lt Emergency Operation gt TH7 Thermistor lt Ambient gt LIt LI2 LIS NI Connection Terminal lt L1 L2 L3 N Power Supply gt 55 Connector lt Connection for Option gt TH8 Thermistor lt Heat Sink gt LO1 LO2 LO3 Connection Terminal lt L1 L2 L3 Power Supply CNDM Connector Connection for Option TH32 Thermistor Comp Surface GD1 GD2 Connection Terminal Ground CNM Connector Connection for Option LEV A Linear Expansion Valve C B Controller Circuit Board LED1 LED2 LED lt Operation Inspection Indicators gt DCL Reactor SW1 Switch lt Manual Defrost Defect History F1 F2 F3 F4 Fuse lt T6 3AL250V gt ACL4 Reactor Record Reset Refrigerant Address gt X51 X62 X64 X65 Relay MEE E LEVA When M NET adapter is connected E M 3 5 c t Qt t 9999 CNF1 0000 00000 ia 1 MET i 7 WHT 121 412 1 6 1 81 5 E ES TH32 TH76 TH3 LEV A CNVMNT CNMNT S e BLK RED WHT WHT WHT WHT 2 ADAPTER NET SES res 28 eg as E z uem 2 CN2M 63H Em 7 wen el 1 WHT GND CN31 3 1 CN2 CN4 Eee
159. ed noise may be causing abnormality Error Code Abnormal points and detection method Case Judgment and action Indoor outdoor unit communication error Signal receiving error Outdoor unit 1 Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes Q Contact failure of indoor outdoor unit connecting wire Defective communication circuit of outdoor controller circuit board Defective communication circuit of indoor controller board Noise has entered into indoor outdoor unit connecting wire Check disconnection or looseness of indoor outdoor unit connecting wire of indoor or outdoor units Turn the power off and on again to check Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again Indoor outdoor unit communication error Transmitting error Outdoor unit 1 Abnormal if 0 receiving is detected 30 times continuously though outdoor controller circuit board has transmitted 1 2 Abnormal if outdoor controller circuit board could not find blank of transmission path for three minutes Indoor outdoor unit connecting wire has contact failure Defective communication circuit of outdoor controller circuit board Noise has entered power supply Noise has entered indoor outdoor unit connecting wire Check disconnection or looseness of indoor outdoor unit connecting wire
160. ed start it by this operation 2 Press the MODE button to select the desired operation mode Stable cooling Stable heating Stable operation Display operation gt operation gt cancellation COOL HEAT STABLE MODE STABLE MODE STABLE MODE CANCEL 3 Press the FILTER 41 button to confirm the setting i iti ili i Hr Display Waiting for stabilization gt Stabilized sss After 10 to 20 minutes OCH415G 115 Data measurement When the operation is stabilized measure operation data as explained below 4 Press the TEMP buttons to select the desired refrigerant address Screen ad Ga lt lt lt 15 z 5 Select the type of data to be displayed After selecting go to step 6 Compressor information MENU button p Cumulative gt ON OFF Number gt Operating current Display amp operation time COMP ON COMP ON COMP ON x10 HOURS x100 TIMES CURRENT A Outdoor unit information ON OFF button Heat exchanger gt Comp discharge gt Outdoor ambient Display temperature temperature temperature OUTDOOR UNIT OUTDOOR UNIT OUTDOOR UNIT TEMP OUTLET TEMP OUTDOOR TEMP Indoor unit information button Indoor room Heat exchanger Filter operatin g p g temperature temperature time Display INDO
161. ed remote controller lt PAR 21MAA gt Operating procedures While the room temperature display on the remote TESIT aN nese currently selected controller is PLEASE WAIT the remote controller is disabled operation mode are displayed alternately Wait until PLEASE WAIT disappears before using remote controller Turn on the main power supply PLEASE WAIT appears for about 2 minutes after power supply is turned on 1 Press A TEST button twice The TEST RUN appears on the screen Cooling mode Check if cool air blows and water is drained Press OLOPERATION SWITCH Heating mode Check if warm air blows It takes a little button while until warm air blows 4 Press AIR DIRECTION Jbutton Check for correct motion of auto vanes Oe Check the outdoor unit fan for The outdoor unit features automatic capacity control to provide optimum fan speeds Therefore the fan keeps correct running running at a low speed to meet the current outside air condition unless it exceeds its available maximum power Then in actuality the fan may stop or run in the reverse Bae aon PAR 2IMAA oe direction depending on the outside air but this does not TEST button mean malfunction Press the ON OFF button to reset the test run in progress Pipe liquid temperature 7 Register the contact number Displays the remaining test run time MITS
162. ency operation During emergency operation no communication is performed with the indoor unit so the data items needed for operation are set to the following values Operation mode Operation data Remarks COOL HEAT Intake temperature TH1 27C 20 5C Indoor liquid pipe temperature TH2 5C 45 Indoor 2 phase pipe temperature TH5 5C 50C Set temperature 25 22 C Outdoor fluid pipe temperature TH3 45C 5C Outdoor 2 phase pipe temperature TH6 50 C Outdoor air temperature 7 35 5C Temperature difference code room temperature set temperature Tj 5 5 Discharge superheat SHd 30deg 30deg Sub cool SC 5deg 5deg 1 If the thermistor temperature data is normal not open short that data is loaded into the control as valid data When the unit enters emergency operation and TH values are mismatched set the thermistors to open short And the unit runs emergency operation with the values listed above 2 If one thermistor is set to open short the value of SHd SC will be different from the list above Example When liquid temperature thermistor TH3 has an open or short circuit Thermistor TH3 5 Ta Tb TH6 Regard normal figure as effective data TH5 5C 50C TH2 5C 45C Degree of subcooling SC Cooling TH6 TH3 Ta 45 Heating TH5 TH2 50 45 5 deg OCH415G 77 11 9 TEST POINT DIAGRAM Outd
163. ent limit control is ON 8 Controlled 9 Controlled Controlled A Controlled Controlled b Controlled Controlled Controlled C Controlled Controlled d Controlled Controlled Controlled E Controlled Controlled Controlled F Controlled Controlled Controlled Controlled OCH415G 124 Fan control state Request code 53 Data display 0 0 Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control Display Correction value mnus 1 0 0 1 1 2 2 Actuator output state Request code 54 Data display 9 o sk L Actuator output state Actuator output state Actuator output state Actuator output state Display SV1 Four way valve Compressor Compressor s Display 52C SV2 SS warming up 0 0 1 ON 1 ON 2 ON 2 ON 3 ON ON 3 ON ON 4 ON 4 ON 5 ON ON 5 ON ON 6 ON ON 6 ON ON 7 ON ON ON 7 ON ON ON 8 ON 9 ON ON A ON ON b ON ON ON C ON ON d ON ON ON E ON ON ON F ON ON ON ON Error content U9 Request code 55 Data display olo Error content Error content Error content Detected Error content Detected Displ
164. er Only the system FRESH MASTER or LOSSNAY are connected to or the system that is equipped with group setting of different refrigerant system If there was no trouble with above replace the controller board of displayed address or attribute If the unit does not return normally multi controller board of outdoor unit may be defective repeater circuit Replace multi controller board one by one to check if the unit returns normally Continued to the next page From the previous page Error Code Abnormal points and detection method Case Judgment and action 4 If displayed address or attribute is remote controller indoor unit detects abnormality when indoor unit transmitted to remote controller and there was no reply ACK During group operation with indoor unit of multi refrigerant System if indoor unit transmit to remote controller while out door unit power supply of one refrigerant system is turned off or within two minutes of restart abnormality is detected Contact failure of transmission wire of remote controller or indoor unit Disconnection of transmission connector CN2M of indoor unit Defective transmitting receiving circuit of indoor unit or remote controller If displayed address or attribute is FRESH MASTER indoor unit detects abnormality when indoor unit transmitted to FRESH MASTER and there was no reply ACK During sequential operation of i
165. er range transmission wire Maximum distance 200m Remote controller line 12m Extinction of transmission wire voltage and signal is caused by type unmatched transmission wire With shield wire CVVS CPEVS With normal wire no shield VCTF VCTFK CVV CVS VVR VVF VCT Diameter 1 25mm or more Extinction of transmission wire voltage and signal is caused by over numbered units Accidental malfunction of abnormality detected controller noise thunder surge Defective of abnormality generated controller If displayed address or attribute is outdoor unit indoor unit detects abnormality when indoor unit transmitted to outdoor unit and there was no reply ACK Contact failure of transmission wire of outdoor unit or indoor unit Disconnection of transmission connector CN2M of outdoor unit Defective transmitting receiving circuit of outdoor unit or indoor unit If displayed address or attribute is indoor unit remote controller detects abnormality when remote controller transmitted to indoor unit and there was no reply ACK OCH415G During group operation with indoor unit of multi refrigerant System if remote controller transmit to indoor unit while outdoor unit power supply of one refrigerant system is put off or within two minutes of restart abnormality is detected Contact failure of transmission wire of remote controller or indoor unit Disconnec
166. er s phone number will appear if the information have V been registered Contact information Dealer Tel Reset error Reset button BAZENE GESI Error information 1 2 Error code E4 Error unit IU Ref address 88 Unt 88 RE Model name Errors cannot be reset while the ON OFF operation is prohibited Serial No Reset error Reset button BAT UTER F4 _pblinks eoo Select OK with the 4 button Error reset Press the F4 button or the button to reset the error that is occurring Reset current error CJC lS Cw Error reset Error reset Navigating through the screens m To go back to the Main menu button d si OCH415G 40 lt Checking the error information gt While no errors are occurring page 2 2 of the error information can be viewed by selecting Error information from the Main menu Errors cannot be reset from this screen Main Main menu 2 3 Restriction Energy saving Night setback Filter information gt Error information Main display Cursor lt Page p ie j C Fl Fe F4 _zblinks lt Error history gt QD Select Service from the Main menu and press the Q button Service menu 1 2 we Select Check with the 1
167. er to indoor outdoor connecting wire terminal block 81 S2 S3 and remote controller terminal block 1 2 This may cause malfunction Make sure that test run switch SW4 is set to OFF before turning on power supply Turn on power supply 12 hours before test run in order to protect compressor For specific models which requires higher ceiling settings or auto recovery feature from power failure make proper changes of settings referring to the description of Selection of Functions through Remote Controller Make sure to read operation manual before test run Especially items to secure safety OCH415G 38 11 2 2 Test run for wired remote controller lt PAR 31MAA gt D Select Service from the Main menu and press the button Select Test run with the F1 F2 button and press the 7 button MITSUBISHI ELECTRIC lt Le MENU RETURN SELECT ON OFF Function buttons Fi F2 F3 F4 Service menu 2 Test run Input maintenance info Function setting Check Self check Main menu ees Fl Fe eoe 2 Select Test run with the 1 2 button and press the V button Test run menu gt Test run Drain pump test run Service menu YV Cursor
168. erant address cannot be specified by the wireless remote controller Flow of function selection procedure The flow of the function selection procedure is shown below This example shows how to turn off r m he function that raises the set temperature by 4 degrees during HEAT operation Mode 24 2 The procedure is given after the flow chart afa MITSUBISHI ELECTRIC pes Check the function selection setting Switch to function selection mode Check mode is the mode entered when Enter address 50 in check mode you press the CHECK button twice to display then press the J button CHECK ON OFF A Specify unit No 01 since the function applies to unit 01 _ Set address 01 while still in check mode then press the button YES FL Note You cannot specify the refrigerant address Changs FAN autostop NO unit No C 6 9 Select mode 24 function that raises set temperature by 4 degrees during HEAT operation MODE AUTOSTART Set address 24 while still in check mode then press the C button amp CHECK LOUVER _ Select setting No 02 OFF i EST Set address 02 while still in check mode then press the button in 5 se er Finished NO LYES End function selection mo
169. ern A Beeper sounds Beep Beep Beep Beep Beep Beep Beep _ ______ fee ml i Repeated INDICATOR C qo S E lamp blink Off On On On Off On On pattern Self check APProx 2 5 sec 0 5 sec 0 5 sec 0 5 sec 0 5 sec Approx 2 5 sec 0 5 sec 0 5 sec starts M v J Start signal N Ph TAS received umber of blinks beeps in pattern indicates the check Number of blinks beeps in pattern indicates code in the following table i e n 5 for P5 the check code in the following table Output pattern B Beeper sounds Beep Beep Beep Beep Beep Beep oPERATON _ tw ew y ts ovs Repeated INDICATOR lt gt gt amp blink Off On On On On On Off On On On pattern Self check Approx 2 5 sec Approx 3 sec 0 5 sec 0 5 sec 0 5 sec 0 5 sec Approx 2 5 sec Approx 3 sec 0 5sec 0 5 sec starts v J Start signal Mm Ge received Number of blinks beeps in pattern indicates the check Number of blinks beeps in pattern indicates code in the following table i e n 5 for U2 the check code in the following table Output pattern A Errors detected by indoor unit Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp blinks Check code SUP nena Number of times 1 P1 Intake sensor error 2 P2 Pipe TH2 sensor error
170. errors are found check the transmission line for external noise inter ference Begin Y Cw If the button is pressed after the remote controller check results dis played remote controller check will end and the remote controller will automati cally reboot itself Check the remote controller display and see if anything is displayed including lines Nothing will appear on the remote controller display if the correct voltage 8 5 12 VDC is not supplied to the remote con troller If this is the case check the remote controller wiring and indoor units OCH415G 45 11 3 3 Self diagnosis lt PAR 21MAA gt Ifa problem occurs in the air conditioner the indoor and outdoor units will stop and the problem is shown in the remote controller display CHECK and the refrigerant address are displayed on the temperature display and the error code and unit number are displayed alternately as shown below MITSUBISHI ELECTRIC If the outdoor unit is malfunctioning the unit number will be 00 iti ioni i i p ue In the case of group control for which one remote controller controls CA multiple refrigerant systems the refrigerant address and error code of the DEsooc OMEN ea ei unit that first experienced trouble i e the unit that transmitted the error pur Cy CA gt
171. ervice menu will appear The type of menu that appears depends on the connected indoor units type Note Air conditioning units may need to be stopped to make certain set tings There may be some settings that cannot be made when the system is centrally controlled Cw A screen will appear that indicates the setting has been saved Navigating through the screens To go back to the Main menu button e To return to the previous screen 5 button OCH415G 103 Service menu 12 Test run Input maintenance info Function setting Check Self check Main menu v Service menu 2 2 gt Maintenance password Remote controller check Main menu Cursor Service menu Not available Please stop the unit Service menu lt Function setting gt CD Select Service from the Main menu and press the button 2090 _ est run Input maintenance info Cw Function setting Check Self check Select Function setting with the F1 or F2 button and press the V button EE j Set the indoor unit refrigerant addresses and unit numbers with the F1 Function setting gt Ref address Ig through F4 buttons and then press the button to confirm the current Purus T 1 2 3 4 A setting Checking the indoor unit gt Monito
172. es not rise Inspect the failure by checking discharging pressure Replace linear expansion valve If refrigerant leaks discharging temperature rises and LEV opening increases Inspect leakage by checking the temperature and opening Check pipe connections for gas leakage Check the insulation Open suction grill and check the filter Clean the filter by removing dirt or dust on it If the filter is clogged indoor pipe temperature rises and discharging pressure increases Check if heat exchanger is clogged by inspecting discharging pressure Clean the heat exchanger Remove the blockage Check refrigerant system during operation 8 For 3 minutes after temperature adjuster turns off the compressor will not start operating even if temperature adjuster is turned on For 3 minutes after temperature adjuster turns on the compressor will not stop operating even if temperature adjuster is turned off Compressor stops operating immediately when turning off by the remote controller OCH415G X Normal operation For protection of compressor 62 COO Normal operation Symptoms PLEASE WAIT is kept being displayed on the remote controller Inspection method and Diagnosis flow troubleshooting Check the display time of PLEASE WAIT after turning on the main power 6 minutes 2 minutes or more ow long is PLEASE WAIT or less P
173. et the refrigerant address by using DIP SW1 3 to 6 on the outdoor controller board Initial setting all switches are OFF All refrigerant addresses are 00 System controller System controller Setting example M NET Address 1 2 SW11 lt gt gt 15 228 609 Switch digit pe setting SW12 LEI KID ori mama OFF oF Oe or OO ol Oe o OO or mummririmi or mum ririm 123456 123456 1232556 123456 T234596 123456 T23456 123456 Refrigerant 5 1 2 3 4 5 6 7 address pikmin imini DOOINDNN C DOUINNEN CIIONENEN or or OO or OO or or or OOOO 1234556 1234558 123459 1234556 1234556 12 3456 123456 123456 8 9 10 11 12 14 The black square m indicates a switch position 9 4 3 Regulations in address settings In the case of multiple grouping system M NET and refrigerant address settings should be done as explained in the above section Set the lowest number in the group for the outdoor unit whose refrigerant address is 00 as its M NET address Group A Power supply unit for
174. ete the function settings Press button Do not use the wireless remote controller for 30 seconds after completing the function setting OCH415G 107 12 2 FUNCTION SELECTION OF REMOTE CONTROLLER 12 2 1 PAR 31MAA MITSUBISHI ELECTRIC mh Function buttons eee e F1 F2 F3 F4 The functions of the function buttons change depending on the screen Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen When the system is centrally controlled the button function guide that corresponds to the locked button will not appear lt Main display gt lt Main menu gt 14 38 Fri Main Main menu 1 3 gt Vane Louver Vent Lossnay High power Room 28 C SEA Cool Settemp Auto Weekly timer OU silent mode Ax E 28 amp Function guide 1 ON OFF button 6 ON OFF lamp Press to turn ON OFF the indoor unit This lamp lights up in green while the unit is in operation It blinks while the remote controller is starting up or when 2 SELECT button there is an error Press to save the setting 3 RETURN button Press to return to the previous screen 4 MENU button Press to bring up the Main menu 5 Backlit LCD Operation settings will appear
175. fixing nut fixing screws MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2007 MITSUBISHI ELECTRIC CORPORATION Distributed in Jul 2013 No OCH415 REVISED EDITION G Distributed in Dec 2012 No OCH415 REVISED EDITION F Distributed in Apr 2010 No OCH415 REVISED EDITION E PDF 4 Distributed in Nov 2009 No OCH415 REVISED EDITION D PDF 6 Distributed in Jul 2009 No OCH415 REVISED EDITION C PDF 6 Distributed in Mar 2009 No OCH415 REVISED EDITION B PDF 6 Distributed in Feb 2008 No OCH415 REVISED EDITION A PDF 7 Distributed in Apr 2007 No OCH415 PDF 7 Made in Japan New publication effective Jul 2013 Specifications are subject to change without notice
176. following points connectors etc If they are short circuited it means that they are broken 1 Check of POWER MODULE Check of DIODE circuit L1 P1 121 1 1 13 IL1 IN1 IL2 INTI ES IN1 Check of IGBT circuit 2 2 P2 W 2 0 N2 V IN2i IW Note The marks 1 12 13 INT P2 U and W shown in the diagram not actually printed on the board CN2 Connect to the outdoor controller circuit board CN2 D G Power circuit board Transmitting signal to the controller board 0 5V DC Zero cross signal 0 5V DC Notused 9 O 0 0 16V DC 16V DC TAB connecter on X52A Connect to the RS resistor Connect to the smoothing capacitor reactor DCL OCH415G _ 3 oc 80 609NO009H TB U TB V TB W Connect to the compressor MC Voltage among phases 10V 400V AC TB L1 TB L2 TB L3 Connect to the outdoor noise filter circuit board LO1 LO2 LO3 400V AC TB N1 Connect to the smoothing cap
177. g power supply to the outdoor unit Check the breaker Check the voltage between S1 and S2 on the terminal block TB1 of the outdoor unit which is used to connect the indoor unit and the outdoor unit AC 198V to AC 264V Oa Bad wiring of the Check the wiring of the outdoor controller board outdoor unit The fuses on the outdoor Check if the wiring is bad YES controller circuit board are Check if the fuses are blown Check the voltage of indoor blown The fuses on the outdoor controller board CN2D controller circuit board will be blown when the indoor outdoor connecting wire short circuits Bad wiring of the Check if miswiring breaking outdoor controller board or poor contact is causing this DC 12V to DC 16V The fuses on the outdoor problem Indoor outdoor controller circuit board are connecting wire is polarized blown 3 core type Connect the indoor unit and the outdoor unit by wiring each pair of Check the voltage of the unit after ST SZ S3 on the both removing the indoor power board ads CN2S ocks Defective indoor Replace the indoor controller board controller board YES DC 12V to DC 16V e Miswiring breaking e Check if there is miswiring or poor connection of or breaking of wire NO indoor outdoor connecting wire Defective indoor Replace the indoor power board power board OCH
178. g Ibs 3 06 6 Oil Model L 0 87 FV50S Pipe size O D Liquid mm in 9 52 3 8 Gas mm in 15 88 5 8 REFRIGERANT PIPING Connection method Indoor side Flared Outdoor side Flared Between the indoor amp outdoor unit Service Ref Height difference Max 30m Piping length Max 50m PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK Mode Cooling Heating OUTDOOR UNIT Power supply phase cycle voltage 3phase 50Hz 400V Running current 5 00 5 26 Max current 13 External finish Munsell 3Y 7 8 1 1 Refrigerant control Linear Expansion Valve Compressor Hermetic Model TNB220FLCMT Motor output 2 9 Starter type Inverter Protection devices HP switch Comp surface thermo Crankcase heater w Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 1 Fan motor output kW 0 060 Airflow me min CFM 60 2120 Defrost method Reverse cycle Noise level Cooling dB 50 Heating dB 54 Dimensions W mm in 950 37 3 8 D mm in 330 30 13 1 3 16 H mm in 943 37 1 8 Weight kg Ibs 77 170 Refrigerant R410A Charge kg Ibs 3 0 6 6 Oil Model L 0 87 FV50S Pipe size O D Liquid mm in 9 52 3 8 Gas mm in 1
179. gerant address that is the same as the specified one In this case check the DIP switch of the outdoor unit to see whether such a refrigerant address exists Select the mode number Press the if TEMP buttons and A to set the desired Mode number mode number display section Only the selectable mode numbers can be selected Mode number 02 Indoor temperature detection Select the setting content for the selected mode Press the ff TEMP buttons and to select the desired Press the MENU button The currently selected setting number setting number will flash so check the currently set content nan 4 LILI LIL LILI LILI sss Setting number display section Setting number 1 Indoor unit operating average Setting number 3 Remote controller built in sensor Register the settings you have made in steps to The mode number and setting number will stop flashing and remain lit indicating the Press the MODE button The mode number and setting number end of registration will start to flash and registration starts FURCTION FURCTION nn SELECTION VEMM SELECTION n m 003 023 If is displayed for both the mode number and setting number and 58 flashes in the room temperature display area a transmission error may have occurred Check to see if there are
180. he remote controller will be the main controller Initial setting value The remote controller will be the sub controller The clock function can be used Initial setting value The clock function can not be used i OHTROUE Lock I O I iO puto OFF Auto off timer can be used MER IMER IMER Timer mode can not be used Weekly timer can be used Initial setting value Simple timer can be used pe OFF The set contact numbers are not displayed in case of error Initial setting value The set contact numbers are displayed in case of error The temperature unit C is used Initial setting value The temperature unit F is used Room air temperature is displayed Initial setting value Room air temperature is not displayed One of Automatic cooling and Automatic heating is displayed under the automatic mode is running Initial setting value Only Automatic is displayed under the automatic mode 13 EASY MAINTENANCE FUNCTION 13 1 SMOOTH MAINTENANCE 13 1 1 PAR 31MAA Maintenance data such as the indoor outdoor unit s heat exchanger temperature and compressor operation current can be displayed with Smooth maintenance This cannot be executed during test operation Depending on the co
181. hen operated CNF1 CNF2 0V 15V pulse OCH415G Connect to the fan motor 280V DC 250 330V DC O Communication power supply 15V DC Outdoor power circuit D71 Voltage 9 0 0 6 5V DC board for P100 140V 24V DC 15V DC When stopped Noise filter circuit board for P100 140Y 79 Outdoor noise filter circuit board PUHZ P100VHA2 UK PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P100VHA3 UK PUHZ P125VHA3 UK PUHZ P125VHA3 UK PUHZ P100VHA3R1 UK PUHZ P125VHA3R1 UK PUHZ P125VHA3R1 UK x CN52C 52C driving signal Connect to the outdoor controller circuit board CN52C LO NO Voltage of 230V AC is output Connect to the outdoor power circuit board TABS TABT Nap CNAC1 CNAC2 230V AC Connect to the outdoor control ler circuit board CNAC og lt l 22 Connect to the earth CN5 Primary current El Connect to the Connect to outdoor power the earth circuit board CN5 5191 E SESS 0 5 5 9 THEE Voltage of 230V AC is input Connect to the terminal block TB1 OCH415G 80 Outdoor noise filter circuit board PUHZ P100YHA UK PUHZ P125YHA UK PUHZ P140YHA UK PUHZ P100YHAR1 UK PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK LI1 LI2 NI POWER SUPPLY LH LI2 LI LIS LI3 LI1 AC400 V i
182. htness and intensity flare cutting dimension of copper pipe for R410A have been speci fied separately from the dimensions for other refrigerants as shown below The dimension B of flare nut for R410A also have partly been changed to increase intensity as shown below Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below For 1 2 and 5 8 inch the dimension B changes Use torque wrench corresponding to each dimension Dimension A 4 4 3 LIA Flare cutting dimensions mm EG Dimension Flare nut dimensions mm Nominal Outside Dimension A 324 Nominal Outside Dimension B dimensions inch diameter R410A R22 dimensions inch diameter R410A R22 1 4 9 1 9 0 1 4 6 35 17 0 17 0 3 8 13 2 13 0 3 8 9 52 22 0 36 0mm for 1 2 16 6 16 2 1 2 12 70 24 0 indoor unit 5 8 19 7 19 4 5 8 15 88 27 0 of RP100 3 4 gt 23 3 125 and 140 Tools for R410A The following table shows whether conventional tools can be used or not Tools and materials Gauge manifold Air purge refrigerant charge and R410A tools Tool exclusive for R410A Can R22 tools be used Can R407C tools be used x Charge hose Operation check Tool exclusive for R410A Gas leak detector Gas leak check Tool for HFC refrigerant Refrigerant recovery equipment Refrigerant cylinder Refrigerant recovery Refrigerant cha
183. ified capacity 4 or more indoor units are connected to one outdoor unit Defective transmitting receiving circuit of outdoor controller circuit board Defective transmitting receiving circuit of indoor controller board Defective indoor power board 2 or more outdoor units have refrigerant address 0 In case of group control Noise has entered into power supply or indoor outdoor unit connecting wire Miswiring of indoor outdoor unit connecting wire converse wiring or disconnection Outdoor controller circuit board can automatically set the unit number of indoor units Abnormal if the indoor unit number can not be set within 4 minutes after power on because of miswiring converse wiring or disconnection of indoor outdoor unit connecting wire Contact failure or miswiring of indoor outdoor unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of specified capacity Defective transmitting receiving circuit of outdoor controller circuit board Defective transmitting receiving circuit of indoor controller board Defective indoor power board 2 or more outdoor units have refrigerant address 0 In the case of group control Noise has entered into power supply or indoor outdoor unit connecting wire Start up time over The unit cannot finish start up process within 4 minutes after power on OCH415G Contact failure of indoor out
184. indoor and outdoor units Simultaneous twin triple system lt For models without heater gt The optional indoor power supply terminal kits are required el Affix a label B that is included with the manuals near each wiring diagram for th amp Outdoor unit power supply Wiring circuit breaker or isolating switch Indoor unit outdoor unit connecting cords Earth leakage breaker TE TA TA d i Outdoor unit iy el g TE TRE 1 Remote controller SY ISI iS Indoor unit ISAE 129 Option Sy 63 63 Indoor unit power supply 19 Indoor unit earth EX i e indoor and outdoor units If the indoor and outdoor units have separate power supplies refer to the table below If the optional indoor power supply terminal kit is used change the indoor unit electrical box wiring referring to the figure in the right and the DIP switch settings of Connectors connections when shipped the outdoor unit control board pees heater i from the factory are for indoor unit power or models wl supplied from outdoor unit Indoor unit specifications heater g Indoor power supply terminal kit option Required T JE i i z N mim Indoor unit electrical box connector con Required x n nection change d B BUES
185. it Setting information Refer to 14 2 1 Detail Contents in Request Code 72 73 Outdoor unit SW1 setting information Refer to 14 2 1 Detail Contents in Request Code E 74 Outdoor unit SW2 setting information Refer to 14 2 1 Detail Contents in Request Code 75 76 Outdoor unit SW4 setting information Refer to 14 2 1 Detail Contents in Request Code 77 Outdoor unit SW5 setting information Refer to 14 2 1 Detail Contents in Request Code 78 Outdoor unit SW6 setting information Refer to 14 2 1 Detail Contentsin Request Code 79 Outdoor unit SW7 setting information Refer to 14 2 1 Detail Contents in Request Code 80 Outdoor unit SW8 setting information Refer to 14 2 1 Detail Contents in Request Code 81 Outdoor unit SW9 setting information Refer to 14 2 1 Detail Contents in Request Code 82 Outdoor unit SW10 setting information Refer to 14 2 1 Detail Contents in Request Code 83 84 M NET adapter connection presence absence 85 86 87 88 89 Display of execution of replace wash operation ODDS ace _ 90 Outdoor unit Microprocessor version information Examples Ver 5 01 0501 Ver Auxiliary information displayed after 91 Outdoor unit Microprocessor version information sub No version information _ Examples Ver 5 01 A000 A000 92 93 94 95 96 97 98 99 Displays postponement code is 100 Outdoor unit Error postponement history 1 latest displayed if no
186. jaq uwous SI jo uogeue dx 1983 Uone sSUONOOIIP p eq UBD slloq OLIN SS920 90195 10 ejdurexe o seq 009 pue Buidig Ajwuy HUN eui N S eoeds jo suoisueuii P smoys eu l to O00 og uogepuno SNOILO3UIQ 9NIgIM ONIdld 7 51108 NOLLVGNNOS 39VdS 39IAH38 un 39vds 3383 N N Sejou peuojou pedeus N Z y lul T Tof E E PPE 4156 mm Uni StL StL StL 022 H 02 39 lou ures Seen 5 8 N 26 ou 2 y 4 B i8 P joy Buidid woyog N 8 fo L Inoyoouy 21 SZ GY OP lou Burun 1uo14 Inoyoouyzz9 z mozo 29 6uidid 000 222 19109 7 lou Buum jddns samog ejou Buyunn 164 Sou ejou A ddns 19409 1u014 5 lou lddns samo TAN d sjrejoq Buidig JU I
187. jou payojou padeys N Z PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK 009 exelu pue seal Jyp juouj y eq ueo suonoeuuoo pue lt y0q 4 gt Ajyeo0 paseyound Jsnw pue sllog slloq OLIN Ajwuy yun eui uey sso 5 sjenuew ur eui u umous SI jo ale 58920 1 10 21524 eoeds jo suoisueuiig 5 eu SNOILOSHIG 9NIHIM ONldld 7 51108 NOLLWANNO4 80795 JAHIS wun 30085 3344 22 OCH415G 8 WIRING DIAGRAM PUHZ P100VHA2 UK PUHZ P125VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA3 UK PUHZ P125VHA3R1 UK PUHZ P140VHA2 UK PUHZ P140VHA3 UK PUHZ P140VHA3R1 UK SYMBOL NAME SYMBOL NAME SYMBOL NAME IB1 Terminal Block lt P
188. l refrigerant Check if stop valve is full open the power off and check if is displayed when the power is turned on again When U3 is displayed refer to Judgement and action for U3 Check linear expansion valve Refer to 11 6 Error Code Abnormal points and detection method Case Judgment and action Open short circuit of discharge Disconnection or contact failure O Check connection of connector TH4 on the temperature thermistor TH4 or TH32 of connector TH4 or TH32 on outdoor controller circuit board Abnormal if open 3 C or less or short the outdoor controller circuit Check breaking of the lead wire for 217 C or more is detected during board thermistor TH4 or TH32 Refer to 11 9 compressor operation Defective thermistor Check resistance value of thermistor TH4 or Detection is inoperative for 10 minutes Defective outdoor controller temperature by microcomputer i for 1 Thermistor TH4 or TH32 Refer to 11 6 des ctorend dunno debe ite y 0 board SW2 A Control Service Tool Refer to 11 10 Replace outdoor controller board Open short of outdoor unit thermistors Disconnection or contact failure D Check connection of connector TH3 TH6 TH7 TH3 TH6 TH7 and TH8 of connectors on the outdoor controller circuit board Abnormal if open or short is detected Outdoor controller circuit board Check connection of connector CN3 on the during compressor
189. less of the length 30m max and 5m min of piping The additional refrigerant charging work during installation often causes prob lems Heretofore it is completely eliminated This unique system improves the quality and reliability of the work done It also helps to speed up the installation time OCH415G 7 SPECIFICATIONS Service Ref PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK Mode Cooling Heating OUTDOOR UNIT Power supply phase cycle voltage Single 50Hz 230V Running current 12 26 12 62 Max current 28 External finish Munsell 5Y 7 1 Munsell 7 8 1 1 VHA3R1 R2 Refrigerant control Linear Expansion Valve Compressor Hermetic Model TNB220FLHMT Motor output 2 9 Starter type Inverter Protection devices HP switch Discharge thermo Comp surface thermo VHA3R2 Crankcase heater w Heat exchanger Plate fin coil Fan Fan drive x No Propeller fan x 1 Fan motor output kW 0 060 Airflow m min CFM 60 2120 Defrost method Reverse cycle Noise level Cooling dB 50 Heating dB 54 Dimensions mm in 950 37 3 8 D mm in 330 30 13 1 3 16 H mm in 943 37 1 8 Weight kg lbs 75 165 Refrigerant R410A Charge kg Ibs 3 0 6 6 Oil Model L 0 8
190. lity of voltage Check looseness disconnection and converse connection of compressor wiring Measure resistance value among terminals on compressor using a tester G Check the continuity of contactor 52C Check if power supply voltage decreases Check the wiring of CNAF 1 blinking Abnormality of room temperature thermistor TH1 Abnormality of pipe temperature thermistor Liquid TH2 Abnormality of pipe temperature thermistor Condenser Evaporator Check if connectors CN20 CN21 CN29 and CN44 on indoor controller board are not disconnected Measure resistance value of indoor thermistors 2 blinking Abnormality of drain sensor DS Float switch FS connector open Indoor drain overflow protection Check if connector CN31 CN4F on indoor controller board is not disconnected Measure resistance value of indoor thermistors Measure resistance value among terminals on drain up machine using a tester Check if drain up machine works Check drain function 3 blinking Freezing cooling overheating heating protection Check if indoor unit has a short cycle on its air duct Check if heat exchanger and filter is not dirty Measure resistance value on indoor and outdoor fan motors Check if the inside of refrigerant piping is not clogged 4 blinking Abnormality of pipe temperature 1 Error code displayed on remote controller 2 Refer to servi
191. ly Otherwise pipe may break OCH415G 75 11 8 EMERGENCY OPERATION 1 When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor unit has a failure but no other problems are found emergency operation will be available by setting the emergency operation switch SWE on indoor controller board to ON and short circuiting the connector CN31 on outdoor controller board When following abnormalities occur emergency operation will be available Error code Inspected content U4 Open short of pipe thermistor TH3 TH6 E8 Indoor outdoor unit communication error Signal receiving error Outdoor unit E9 Indoor outdoor unit communication error Transmitting error Indoor unit Communication error other than outdoor unit Ed Communication error between outdoor controller board and M NET board Serial communication error 2 Check the following items and cautions for emergency operation Make sure that there is no abnormality in outdoor unit other than the above abnormalities Emergency operation will not be available when error code other than the above are indicated For emergency operation it is necessary to set the emergency operation switch SWE on indoor controller board Refer to the electrical wiring diagram of indoor unit for how to set the indoor unit During emergency operation the air conditioner will continuously be operate
192. mbination with the outdoor unit this may not be supported by some models Select Service from the Main menu and press the button D Check menu 1 1 Error history Refrigerant volume check w Refrigerant leak check Smooth maintenance Select Check with the 22 button and press the button Request code Service menu lt lt Select Smooth maintenance with the F1 or F2 button and press the 2 button Set each item 2 Smooth maintenance P Ref address E Select the item to be changed with the F1 or F2 button Stable mode Heat Normal Select the required setting with the F3 or F4 button Begin V Cursor Address u lt Ref address gt setting 0 15 m Stable gt Cool Heat Normal yr 3 Smooth maintenance Press the button Fixed operation will start E Stable mode will take approx 20 minutes Stable mode WEB Heat Normal Stabilization Collecting Exit b The operation data will appear 9 Ref address 8 Cool The Compressor Accumulated operating COMP run time is 10 hour unit and COMP current the Compressor Number of operation times COMP On Off is a 100 time ER Hi unit fractions discarded COMP frequency 80 Hz Return w Page A
193. me of error 40 90 114 Outdoor unit 2 phase pipe temperature TH6 attime oferror 39 88 115 116 Outdoor unit Outside air temperature TH7 at time of error 39 88 117 Outdoor unit Heat sink temperature TH8 at time of error 40 200 118 Discharge super heat SHd at time of error 0 255 o 119 Sub cool SC at time of error 0 130 120 Compressor Operating frequency at of error 0 255 Hz 124 Outdoor unit at time of error 0 10 Step Fan output step 120 Outdoor unit at time of Sor 0 9999 n Fan 1 speed Only for air conditioners with DC fan 123 Outdoor unit at time of error 0 9999 O is displayed if the air conditioner is a single Fan 2 speed Only for air conditioners with DC fan fan type 124 125 LEV A opening at time of error 0 500 Pulses 126 LEV B opening at time of error 0 500 Pulses 127 128 129 130 Thermostat ON time until operation stops due to error 0 999 Minutes 131 132 Indoor Liquid pipe temperature at time of error 39 88 Average value of all indoor units is displayed if the air condi tioner consists of two or more indoor units twin triple quad 133 Indoor 2 phase pipe temperature at time of error 39 88 Average value of all indoor units is displayed if the air condi tioner consists of two or more indoor units twin triple quad Indoor at time of er
194. mit ted because the address of FRESH MASTER and LOSSNAY are changed after sequential operation of FRESH MASTER and LOSSNAY by remote controller 60 Same as mentioned in A7 of the previous page Error Code Abnormal points and detection method Case Judgment and action continuously M NET NO RESPONSE Abnormal if a message was transmitted and there was reply that message was received but response command does not return Transmitting side detects abnormality every 30 seconds 6 times Note The address and attribute displayed at remote controller indicate the con troller that did not reply ACK Transmitting condition repeats fault because of noise and the like Extension of transmission wire voltage and signal is caused by over range transmission wire Maximum distance 200m Remote controller line 12m Extension of transmission wire voltage and signal is caused by type unmatched transmis sion wire With shield wire CVVS CPEVS With normal wire no shield VCTF VCTFK CVV CVS VVR VVF VCT Diameter 1 25mm or more Accidental malfunction of abnormality generated control ler 11 5 TROUBLESHOOTING OF PROBLEMS Phenomena Factor Check transmission wave form or noise on transmission wire Turn off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more
195. n error occurring 0 10 OCH415G 98 The black square m indicates a switch position SW2 setting Display detail Explanation for display LEV A opening pulse on error occurring 0 480 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Example When 130 pulse 0 5 secs 0 5secs 2 secs Indoor room temperature TH1 on error occurring 8 39 Indoor pipe temperature Liquid TH2 39 88 error occurring When the temperature is 0 C or less and 39 88 temperature are displayed by turns Example When 15 C 0 5 secs 0 55 5 2 secs gt 15 Indoor pipe temperature Cond Eva 39 88 5 on error occurring When the temperature is 0 C or less and 39 88 temperature are displayed by turns Example When 15 0 5 secs 0 55 5 2 secs 15 gt Outdoor pipe temperature 2 phase 6 39 88 on error occurring When the temperature is 0 C or less and 39 88 temperature are displayed by turns Example When 15 C 0 5 secs 0 5 2 secs I 15 gt Outdoor outside temperature TH7 39 88 error occurring When the temperature is 0 C or less
196. nd national code 2 Power supply cords and Indoor Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord Design 60245 IEC 57 3 Install an earth longer than other cables Power supply Isolator 1 A Control Outdoor Unit S3 52 3 poles isolator 2 51 s2 A Control Indoor Unit S3 A Warning In case of A control wiring there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line Therefore please turn off the main power supply when servicing And do not touch the S1 S2 S3 terminals when the power is energized If isolator should be used between indoor unit and outdoor unit please use 3 pole type 1 1 system Synchronized twin and triple system Electrical wiring Synchronized twin d N d N Outdoor Indoor Outdoor Indoor Indoor oS unit unit _ pese unit unit _ _ unit 1 1 Bouse nel Bs Unit i Te Remote Bl controller ower 1 controller supply i Indoor outdoor Supply i I e Indoor outdoor 1 i 1 unit connection i 1 l 1 unit connection 1 1 I cable Im PEN
197. ndoor unit and FRESH MASTER of other refrigerant System if indoor unit transmits to FRESH MASTER while outdoor unit power supply of same refrigerant system with FRESH MASTER is turned off or within 2 minutes of restart abnormality is detected Contact failure of transmission wire of indoor unit or FRESH MASTER Disconnection of transmission connector CN2M of indoor unit or FRESH MASTER Defective transmitting receiving circuit of indoor unit or FRESH MASTER If displayed address or attribute is LOSSNAY indoor unit detects abnor mality when indoor unit transmitted to LOSSNAY and there was no reply ACK If the power supply of LOSSNAY is off indoor unit detects abnormality when it transmits to LOSSNAY During sequential operation of indoor unit and LOSSNAY of other refrigerant system if indoor unit transmits to LOSSNAY while outdoor unit power supply of same refrig erant system with LOSSNAY is turned off or within 2 min utes of restart abnormality is detected Contact failure of transmis sion wire of indoor unit of LOSSNAY Disconnection of transmission connector CN2M of indoor unit Defective transmitting receiv ing circuit of indoor unit or LOSSNAY 7 When displayed address or attribute is nonexistent OCH415G The unit of former address does not exist as address switch has changed while the unit was energized 9 Abnormality is detected when indoor unit trans
198. nduct trouble shooting and ascertain the cause of the Not displayed trouble according to 11 5 Troubleshooting of problems Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor poor connection of wiring noise and etc Re check the symptom and check the installation environment refrigerant amount weather when the trouble occurred matters related to wiring and etc Reset error code logs and restart the unit after finishing service There is no abnormality concerning of parts such as electrical component controller board remote controller and etc The trouble is not reoccurring Re check the abnormal symptom Conduct trouble shooting and ascertain the cause of the trouble according to 11 5 Troubleshooting of problems Not logged Continue to operate unit for the time being if the cause is not ascertained There is no abnormality concerning of parts such as electrical component controller board remote controller and etc 11 2 CHECK POINT UNDER TEST RUN 11 2 1 Before test run After installation of indoor and outdoor units piping work and electric wiring work re check that there is no refrigerant leak age loosened connections and incorrect polarity Measure impedance between the ground and the power supply terminal block L N on the outdoor unit by 500 V Megger and check that it is 1 0 MQ or over Do not use 500V Megg
199. ner has a function for switching the air direction 3 If the air conditioner does not have that function NOT AVAILABLE will be displayed on the remote controller when AIR DIRECTION or LOUVER button is pressed The air conditioner starts operating even though any buttons on the remote controller are not pressed Check if you set ON OFF timer The air conditioner starts operating at the time designated if ON timer has been set before Check if any operations are ordered by distant control system or the central remote controller While CENTRALLY CONTROLLED INDICATOR is displayed on the remote controller the air conditioner is under the control of external directive There might be a case that CENTRALLY CONTROLLED INDICATOR will not be displayed Check if power is recovered from power failure black out The units will automatically start operating when power is recovered after power failure black out occurs This function is called power failure automatic recovery The air conditioner stops even though any buttons on the remote controller are not pressed OCH415G Check if you set ON OFF timer The air conditioner stops operating at the time designated if OFF timer has been set before Check if any operations are ordered by distant control system or the central remote controller While CENTRALLY CONTROLLED INDICATOR is displayed on the remote controller
200. ng connected the terminal A B S on M NET terminal block should be individually wired to the other outdoor unit s terminal i e A to A B to B and S to S In this case choose one of those outdoor units and drive a screw to fix an ground wire on the plate as shown on the right figure M NET terminal block N G9 amp Earth 4 wire Al Bl s Manas Transmission Shield wire part 9 4 1 M NET address setting In A control models M NET address and refrigerant address should be set only for the outdoor unit Similar to CITY MULTI system there is no need to set the address of outdoor unit and remote controller To construct a central control system the setting of M NET address should be conducted only upon the outdoor unit The setting range should be 1 to 50 the same as that of the indoor unit in CITY MULTI system and the address number should be consecutively set in a same group Address number can be set by using rotary switches SW11 for 1s digit and SW12 for 10s digit which is located on the M NET board of outdoor unit Factory setting all addresses are set to 0 9 4 2 Refrigerant address setting In the case of multiple grouping system multiple refrigerant circuits in one group indoor units should be connected by remote controller wiring TB5 and the refrigerant address needs to be set Leave the refrigerant addresses to 00 if the group setting is not conducted S
201. nit number to 00 Select 00 referring to setting the indoor unit number Initial setting Function Settings Mode No Setting No when sent from the factory Remarks Power failure OFF automatic recovery ON 01 Indoor temperature Average data from each indoor unit detecting 1 Data from the indoor unit with remote controller 02 Data from main remote controller LOSSNAY Not supported connectivity Supported Indoor unit does not intake outdoor air through LOSSNAY 03 e The setting is e applied to all the units in the same refrigerant system Supported Indoor unit intakes outdoor air through LOSSNAY Power supply 240V voltage 220V 230V 04 Frost prevention 2C Normal temperature 3C 15 Humidifier control When the compressor operates the humidifier also operates When the fan operates the humidifier also operates 16 Standard For high humidit 17 1 The functions above are available only when the wired remote controller is used The functions are not available for floor standing models N DOJ PO PO Cd DO C9 Po Meaning of Function setting Mode02 indoor temperature detecting REMOTE MAIN Indoor temperature ta No No No o 1 Average data of the sensor on all the indoor units connected o 2 The data of the sensor on the indoor unit that with remote controller No 3 Th
202. nnection wire between outdoor controller circuit board CNMNT and M NET board Check M NET transmission wiring method Pipe temperature lt Cooling mode gt Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes later of compressor start and 6 minutes later of the liquid or condenser evaporator pipe is out of cooling range Note 1 It takes at least 9 min to detect Note 2 Abnormality P8 is not detected in drying mode Cooling range Indoor pipe temperature TH2 or 5 intake temperature TH1 3 deg TH Lower temperature between liquid pipe temperature and condenser evaporator temperature lt Heating mode gt When 10 seconds have passed after the compressor starts operation and the hot adjustment mode has finished the unit is detected as abnormal when condenser evaporator pipe temperature is not in heating range within 20 minutes Note 3 It takes at least 27 minutes to detect abnormality Note 4 It excludes the period of defrosting Detection restarts when defrosting mode is over Heating range 3 deg Condenser Evaporator temperature TH5 intake temperature TH1 OCH415G Q Slight temperature difference between indoor room temperature and pipe lt liquid or condenser evaporator gt temperature thermistor Shortage of refrigerant Disconnected holder of pipe lt liquid or condenser evaporator gt thermistor Defective refrigerant circuit
203. nosed and the self diagnosis process will begin Display self diagnosis results When there is error code history For the definition of each error code refer to the indoor unit s installation manual or service handbook Alternating Display SELF SELF CHECK n Pee X 127 EN nn Sie JN uu Error code 2 or 4 m Address 3 digits or unit number 2 digits When there is no error code history When there is no corresponding unit SELFCHECK 2207 SELFCHECK OW Ra nn nn x LILI LILI Reset the error history Display the error history in the diagnosis result display screen see step ERAQR 2 L lt gt inan us nn LILI OCH415G 46 me When the error history is reset the display will look like the one shown below h Press the ON OFF button twice within 3 seconds However if you fail to reset the error history the error content will be displayed again The self diagnosis address or refrigerant address will flash SELF CHECK L2 n ese rim dai nn LILI Cancel self diagnosis Self diagnosis can be cancelled by the following 2 methods Press the CHECK button twice within 3 seconds gt Self diagnosis will be cancelled and the screen will return to the previous state in effect before the s
204. nput LI1 NI LI2 NI LI3 NI AC230 V input Connect to the terminal block TB1 e WI GD1 Connect to the earth CNAC1 CNAC2 AC230V Connect to the outdoor controller circuit board CNAC Connect to the earth o ve 3epr s OC cys 5 CNDC Connect to the outdoor controller ACCT circuit board CNDC 6 CNCT Primary current Connect to the C6 gt CNL 2 lt lg Sr 25009 4 outdoor power Soet 9 ircuit board CN5 circuit Doar Connect to the FUSE EE 2 LO1 LO2 LO3 ACL4 POWER SUPPLY LO1 LO2 LO2 LOS LOS3 LO1 AC400 V OUTPUT Connect to the outdoor power circuit board TB1 L1 L2 L3 OCH415G 81 Outdoor noise filter circuit board PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK LI1 62 NI POWER SUPPLY LI1 LI2 LI LI3 LI3 LI1 AC400V input LI1 NI LI2 NI LI3 NI AC230V input Connect to the terminal block TB1 9 uv o 3 GZ GD1 Connect to the earth 25 1a9 LH WO t 3W 33114 3SION NDIOL O3N GD3 Connect to the earth CNAC2 AC230V Connect to the outdoor controller circuit board CNAC Connect to the outdoor controller circuit board CNDC s gum 5 20 CNCT BLUE eor Primary current Connect to the out aki Io T6 3AL250V a door power circuit
205. nut using a spanner or a adjustable wrench Note Recover refrigerant without spreading it in the air 13 Removing the accumulator Remove the service panel See Figure 1 Remove the top panel See Figure 1 Remove the cover panel front Refer to procedure 12 Remove the cover panel rear Refer to procedure 12 Remove the control box Refer to procedure 3 Remove the valve bed Refer to procedure 8 Remove the side panel R Refer to procedure 8 Recover refrigerant Remove welded pipes of accumulator inlet and outlet Remove 2 accumulator leg fixing screws 4 x 10 Note Recover refrigerant without spreading it in the air OCH415G 133 Photo 12 Control box E Fa Controller circuit board C B Terminal block Valve bed TB1 Terminal cover Cover panel a Front J Cover panel fixing screws Photo 13 Terminal cover Inlet Accumulator Separator Separator fixing screw Soundproof cover for compressor Accumulator leg fixing screws PUHZ P125 140VHA2 UK PUHZ P125 140VHA2 UK PUHZ P125 140VHA3 UK PUHZ P125 140VHA3R1 UK PUHZ P125 140VHA3R2 UK PUHZ P125 140VHA3R3 UK PUHZ P125 140YHA UK PUHZ P125 140YHAR1 UK PUHZ P125 140YHAR2 UK OPERATING PROCEDURE PHOTOS amp ILLUSTRATION 1 Removing the service panel and top panel Figure 1 Top panel fixing screws Top panel 1 Remove 3 service panel fixing screws 5 x 12 and slide A the hook on the right downward to
206. o J F1 Fe FS F4 Test run operation Test run Remain 2 08 Press the F1 button to go through the operation modes in the order of Cool Pipe 28 C and Heat cop Switch disp v e Cool mode Check the cold air blow off Fan Heat mode Check the heat blow off Cw Fl Fe FS F4 Press the button and open the Vane setting screen Auto vane check 00 Check auto vane with the 1 22 buttons gt Check the operation of the outdoor unit s fan gt Press the button to return to Test run operation 1 j Press the button When the test run is completed the Test run menu screen will appear The test run will automatically stop after two hours OCH415G 39 Fl Fe 4 eoo lt Error information gt When an error occurs the following screen will appear Check the error status stop the operation and consult your dealer QD Error code error unit refrigerant address unit model name and serial a number will appear code E4 The model name and serial number will appear only if the information have Error unit IU b istered Ref address 00 Unt 88 een registered Mesi ara Serial No Press the F1 or F2 button to go to the next page Reset error Reset button BAZ Cw Reset ee F3 FA _ Dlinks DOY Contact information deal
207. ol box Loosen the fastener and the cable strap on the control box and unbind the lead wires Thermistor 4 Loosen the clamp for the lead wire in the top and rear of lt Discharge gt the control box See Photo 5 TH4 5 Pull out the thermistor lt Outdoor Pipe gt TH3 See Photo 8 and thermistor lt Discharge gt TH4 from the sensor holder Removing the thermistor lt Comp Surface gt TH32 for VHAS3R2 VHA3R3 and YHA 6 Pull out the thermistor lt Comp Surface gt TH32 from the holder of the compressor shell 7 Loosen the clamp on the separator and unbind the lead wires OCH415G 135 Compressor MC OPERATING PROCEDURE PHOTOS 7 Removing the 4 way valve coil 2154 and LEV coil LEV A Photo 8 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 LEV coil LEV A LEV Removing the 4 way valve coil 3 Remove 4 way valve solenoid coil fixing screw M5 x 6 Lead wire of high Thermistor 4 Remove the 4 way valve coil by sliding the coil toward you pressure switch Outdoor pipe 5 Disconnect the connector 21S4 green on the controller High hae TH3 circuit board in the control box pressure swite 6 Loosen the clamp on the separator and unbind the lead wires Removing the LEV coil 3 Remove the LEV coil by sliding the coil upward 2 4 Disconnect the connectors LEV A white on the controller circuit board in the control
208. older Refer to procedure 4 above to remove thermistor lt Outdoor gt lt Ambient gt TH7 lt Outdoor 2 Phase Pipe gt OCH415G 130 OPERATING PROCEDURE PHOTOS 6 Removing the thermistor Outdoor pipe gt Liquid TH3 thermistor Discharge TH4 and thermistor Comp surface TH32 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Disconnect the connectors TH3 white and TH4 white TH32 black on the controller circuit board in the control box Loosen the fastener and the cable strap on the control box and unbind the lead wires 4 Loosen the clamp for the lead wire in the top and rear of the control box See Photo 5 5 Pull out the thermistor Outdoor Pipe gt lt Liquid gt TH3 and thermistor lt Discharge gt TH4 from the sensor holder Removing the thermistor lt Comp Surface gt TH32 for VHA3R2 VHA4 and YHA 6 Pull out the thermistor lt Comp Surface gt TH32 from the holder of the compressor shell 7 Loosen the clamp on the separator and unbind the lead wires Photo 7 PUHZ P100VHA2 VHA3 R1 Thermistor lt Discharge gt TH4 Thermistor lt Outdoor pipe gt TH3 Removing the 4 way valve coil 21S4 LEV coil LEV A 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 Removing the 4 way valve coil 3 Remove the 4 way valve coil fixing screw M5 x 6 4 Remove the
209. on 4 15 MPa 63H High pressure switch Q Short cycle of indoor unit Clogged filter of indoor unit 9 Decreased airflow caused by dirt of indoor fan Dirt of indoor heat exchanger Locked indoor fan motor Malfunction of indoor fan motor Defective operation of stop valve Not fully open Clogged or broken pipe Locked outdoor fan motor Malfunction of outdoor fan motor Short cycle of outdoor unit Dirt of outdoor heat exchanger Decreased airflow caused by defective inspection of outside temperature thermistor It detects lower temperature than actual temperature Disconnection or contact failure of connector 63H on outdoor controller board Disconnection or contact failure of 63H connection 46 Defective outdoor controller board 42 Defective action of linear expansion valve Malfunction of fan driving circuit Check indoor unit and repair defect Check if stop valve is fully open Check piping and repair defect 9 9 Check outdoor unit and repair defect Check the inspected temperature of outside temperature thermistor on LED display SW2 on A Control Service Tool Refer to 11 10 5 46 Turn the power off and check F5 is displayed when the power is turned again When F5 is displayed refer to Judgment and action for F5 Check linear expansion valve Refer to 11 6 8 Replace outdoor controller board High discharging temperature 1 Abnormal if dis
210. oor controller circuit board PUHZ P100VHA2 UK PUHZ P125VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK SW1 Forced defrost SW7 detect history record reset lt CAUTION gt CNF1 and CNF2 are high voltage PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA3 UK PUHZ P140VHA3 UK PUHZ P125VHA3R1 UK PUHZ P140VHA3R1 UK CNDM CN51 to Input of low level sound priority mode External signal output PUHZ P140VHA2 UK refrigerant address SW6 Fee ns int Model select SW4 Demand control setting to Input of external contact point Compressor operating signal Abnormal signal gt eS a PM Test operation SWP Pump down SW5 Nos md CN4 Transmission to out door power circuit model select SW8 Pipe replace Wiring replace CNM Connect to A control service tool CNMNT Connect to M NET adapter CN5 CNVMNT Connect to M NET adapter CND LEV A Linear Expansion Valve TH4 Thermistor lt Discharge gt a Thermistor lt Outdoor Pipe gt TH7 6 Thermistor Outdoor 2 Phase Pipe 63H High Pressure Switch Vra Voltage between O lt 2 2 right pins of PC5C and 5 and 4 Same as CNF1 Vsp Voltage between pins of C5A C5B DC OV when stopped DC 1 6 5V when operated aosz ve s board
211. operating signal Abnormal signal refrigerant address C ws wee sassa URGES em S SMS ZMS W INF Model select SW4 Test operation SWP Pump down SW8 Pipe replace Wiring replace CNM Connect to A control service tool CNMNT Connect to M NET adapter CN5 CNVMNT Connect to M NET adapter CND Linear Expansion Valve TH3 Thermistor N Liquid TH7 6 Thermistor Ambient 2 phase pipe 63H High Pressure Thermistor Comp Surface Vra Voltage between right pins of PC5C and PCS5D pin and pin 4 Same as CNF1 Vsp Voltage between pins of C5A C5B DC OV when _ 21 6 7 Switch A a TH32 SW5 Ps s Function switch F 52 Connect to the noise filter circuit board CN52C P100 140V CN4 Transmission to out door power circuit board CN4 gt a9 SV1 CH Crankcase heater P125 P140 only lt 2 Bypass valve P125 P140 only 2154 4 way valve power circuit board CN2 Reception from power circuit board Zero cross signal 0 5V DC 9 0 Not used 16V DC hea j 16V DC CNAC to Power supply for outdoor controller circuit board 230V AC to Power supply for indoor and outdoor unit connection wire 230V AC CNS 51 52 230V AC stopped DC 1 6 5V w
212. or mechanical failure system malfunction unit breakdown or accidents caused by failure to follow the instructions Do not use refrigerant other than R410A If other refrigerant R22 etc is used chlorine in refrige rant can cause deterioration of refrigerant oil etc Ventilate the room if refrigerant leaks during operation If refrigerant comes into contact with a flame poisonous gases will be released OCH415G 1 Cautions for service 1 Perform service after recovering the refrigerant left in unit completely 2 Do not release refrigerant in the air 3 After completing service charge the cycle with specified amount of refrigerant 4 When performing service install a filter drier simultaneously Be sure to use a filter drier for new refrigerant 2 Additional refrigerant charge When charging directly from cylinder Check that cylinder for R410A on the market is syphon type Charging should be performed with the cylinder of syphon stood vertically Refrigerant is charged from liquid phase 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant Tool name Specifications Only R410A Gauge manifold Use the existing fitting specifications UNF1 2 Use high tension side pressure of 5 3 MPa G or over Only for R410A Charge hose Use pressure performance of 5 09 or over Electronic
213. ory F1 F2 F3 F4 Fuse lt T6 3AL250V gt ACL4 Reactor Record Reset Refrigerant Address gt X51 X52 X54 X65 Relay es LEV A When M NET adapter is connected H32 TH7 TH6 TH3 A C B o CNF1 5555 505556 69 0960 d MEE NH BE 121 412 1 6 1 31 5 E MSY TH32 TH76 TH3 LEV A CNVMNT CNMNT 2 BLK RED WHT WHT WHT WHT o mm Em ADAPTER 8 z e m 4 8 2 00000000000000 ie 28 2188 2 i 63H 1 4 wet 2 e 55 1 WHT ziEm CN2 CN4 3 WHT 1 7 12 2 TRANS 99999000 99 Scip 1 Sr i CNDC 2 PNK 3 F2 F3 t t t 2I 5 z WHT x lt x 2 5 lo 5 2 Bo 5 B 2194 Br sve 3 ss WHT 6 AO Oy GAN 18 81 BLU 18 504 wir _ 3 4 2184 1 MODEL SELECT The black square W indicates a switch position MODEL SW6 SW5 6 2 ON ON 100v Gre Mag AM cre PULP 12345678 123456 2 8W5 1 to 5 Function Switch 712 CN4 WHT x al ojo 2 51 INDOOR Pehle UNIT m ee s3 Eee 2 TB1 RED RED POWER WHT 102 WHT SUPPLY 3N BLK LO3 BLK 400V 50Hz BLU GRN YLW 415 28 PUHZ P100YHA2R1 UK
214. ove the top panel See Figure 1 lt Outdoor 2 phase pipe gt TH6 3 Disconnect the connectors TH6 and TH7 red on the controller circuit board in the control box Loosen the fastener and the wire clip on the control box and unbind the lead wires 4 Loosen the clamp for the lead wire in the top of the control box ane 5 Pull out the thermistor lt Outdoor 2 phase pipe gt TH6 7 l from the sensor holder ji AH Note When replacing thermistor lt Outdoor 2 Phase Pipe gt TH6 replace it together with thermistor lt Outdoor gt lt Ambient gt TH7 since they are combined together Refer to procedure 5 below to remove thermistor lt Outdoor gt lt Ambient gt Control box Removing the thermistor lt Outdoor gt lt Ambient gt TH7 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Disconnect the connector TH6 and TH7 red on the controller circuit board in the control box Loosen the fastener and the wire clip on the control box and unbind the lead wires 4 Loosen the clamp for the lead wire in the top of the control box See Photo 5 5 Pull out the thermistor lt Outdoor gt lt Ambient gt TH7 from the sensor holder Photo 6 Note When replacing thermistor lt Outdoor gt lt Ambient gt TH7 replace it together with thermistor lt Outdoor 2 Phase Pipe gt TH6 since they are combined together Lead wire of thermistor Sensor h
215. ower Supply Indoor Outdoor gt Power Circuit Board 5 8 Switch MC Motor Compressor TABU V W Connection Terminal lt U V W Phase gt SW9 Switch MF1 MF2 Fan Motors TABS T Connection Terminal lt L N Phase gt SWP Switch lt Pump Down 2154 Solenoid Valve Four Way Valve TABP1 P2 P Connection Terminal lt DC Voltage CN31 Connector lt Emergency Operation gt SV Solenoid Valve Bypass Valve TABN1 N2 N Connection Terminal lt DC Voltage LED1 LED2 Light Emitting Diodes CH Crankcase Heater 052 3 Diode Bridge lt Operation Inspection Indicators gt 63H High Pressure Switch IPM Power Module CNM Connector A Control Service Inspection Kit TH3 Thermistor lt Outdoor Pipe gt F Noise Filter Circuit Board CNMNT Connector lt Connected to Optional M NET Adapter Board gt TH4 Thermistor lt Discharge gt C B Controller Circuit Board CNVMNT Connector lt Connected to Optional M NET Adapter Board TH6 Thermistor Outdoor 2 Phase Pipe F1 F4 Fuse lt T6 3AL250V gt CNDM Connector lt Connected for Option Contact Input TH7 Thermistor lt Outdoor gt SW1 Switch lt Forced Defrost Defect History Record X51 X52 X54 X55 Relay TH8 Thermistor lt Heatsink gt Reset Refrigerant Address gt LEV A Electronic Expansion Valve SW4 Switch lt Test Operation gt DCL Reactor Switch lt Function Switch gt ACTM Active Filter Module SW6 Switch lt Model Select gt Main Smoothing Capacitor Sw Switch lt Function Setup gt When M NET adaptor is connecte
216. p CHECK LOUVER e TEST RUN RESET CLOCK OCH415G 11 2 4 Test run for wireless remote controller Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1 0 MQ Turn on the main power to the unit Press the button twice continuously Start this operation from the status of remote controller display turned off ra and current operation mode are displayed Press the O lt button to activate mode then check whether cool air is blown out from the unit Press the 5 og button to activate mode then check whether warm air is blown out from the unit Press the CEJ button and check whether strong air is blown out from the unit Press the 5 button and check whether the auto vane operates properly Press the ON OFF button to stop the test run Note Point the remote controller towards the indoor unit receiver while following steps to Q Itis not possible to run in FAN DRY or AUTO mode 43 11 3 HOW TO PROCEED SELF DIAGNOSIS 11 3 1 Self diagnosis lt PAR 31MAA gt D Select Service from the Main menu and press the button Cw Select Self check with the or button and press the button
217. played by turns Example When 415 minutes 0 5 secs 0 55 5 2 secs gt 15 gt Minute Indoor pipe temperature Liquid 39 88 TH2 3 When the temperature is 0 C or less and Indoor 3 temperature are displayed by turns 39 88 Indoor pipe temperature Cond Eva 39 88 5 3 When the temperature is 0 C or less and Indoor 3 temperature are displayed by turns 39 88 When there is no indoor unit 00 is displayed U9 error details To be shown while Description Display error call is deferred Normal 00 Overvoltage error 01 Undervoltage error 02 Input current sensor error L phase open error Abnormal power synchronous signal 08 ACTM IGBT error P100 140V Undervoltage Display examples for multiple errors Overvoltage 01 Undervoltage 02 03 Undervoltage 02 Power sync signal error 08 0A L phase open error 04 ACTM IGBT error 20 24 04 Code display 20 OCH415G 100 12 FUNCTION SETTING 12 1 UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set as necessary using the remote controller The setting of function for each unit can only be done by the remote controller Select function available from the table 1 lt Table 1 gt Function selections 1 Functions available when setting the u
218. postponement code is present Displays postponement code is 101 Outdoor unit Error postponement history 2 previous Code displayed if no postponement code is present 1 Displays postponement code is 102 Outdoor unit Error postponement history 3 last but one Code displayed if no postponement code is present OCH415G 121 Description Request content Unit Remarks Display range Request code 103 Error history 1 latest Displays error history is displayedif no history is present Code 104 Error history 2 second to last Displays error history is displayedifno history is present Code 105 Error history 3 third to last Displays error history is displayedifno history is present Code 3 TH3 Abnormal thermistor display eee 106 TH3 TH6 TH7 TH8 Sensor 8 number 0 No thermistor error 107 Operation mode at time of error Displayed in the same way as request code 0 108 Compressor Operating current at time of error 0 50 A 109 Compressor Accumulated operating time at time of error 0 9999 10 hours 110 Compressor Number of operation times at time of error 0 9999 100 times 111 Discharge temperature at time of error 3 217 112 Outdoor unit Liquid pipe 1 temperature TH3 at time of error 40 90 113 Outdoor unit Liquid pipe 2 temperature at ti
219. r When the button is pressed the target indoor unit will start fan operation If the unit is common or when running all units all indoor units for the selected SS es refrigerant address will start fan operation Z When data collection from the indoor units is completed the current settings Function setting appears highlighted Ref address 8 Grp 1 4 Non highlighted items indicate that no function settings are made 1 2 3 Screen appearance varies depending on the Unit No setting 2 Hee Mode 4 1 2 3 Request Y Use the 1 22 button to move the cursor to select the mode number Function setting Ref address 8 Unit 1 1 4 and change the setting number with the F3 or F4 button Mode 1 102 3 Mode 2 1 8 3 Mode 3 1 8 3 Mode 4 1 2 3 Request Y 299 5 When the settings are completed press the button to send the setting ______ setting ____ data from the remote controller to the indoor units REG ectiess O Cia When the transmission is successfully completed the screen will return to the Function setting screen Sending data Note Make the above settings only on Mr Slim units as necessary The above function settings are not available for the City Multi units Table 1 summarizes the setting options for each mode number Refer to C
220. r Check disconnection or looseness of indoor unit or transmission wire of remote controller Set one of the remote controllers main If there is no problem with the action above Check wiring of remote controller Total wiring length max 500m Do not use cablex 3 or more The number of connecting indoor units max 16units The number of connecting remote controller max 2units When it is not the above mentioned problem of Q Diagnose remote controllers a When RC OK is displayed remote controllers have no problem Turn the power off and on again to check If abnormality generates again replace indoor controller board b When RC is displayed replace remote controller c When RC ERC 00 66 is displayed noise may be causing abnormality f the unit is not normal after replacing indoor controller board in group control indoor controller board of address 0 may be abnormal Remote controller control board Q Abnormal if data cannot be read normally from the nonvolatile memory of the remote controller control board Error code E1 Abnormal if the clock function of remote controller cannot be operated normally Error code E2 Defective remote controller Replace remote controller Remote controller transmission error E3 signal receiving error E5 Abnormal if remote controller could not find blank of transmission path for 6 se
221. r Circuit Board SW6 Switch Model Select MC Motor for Compressor TB U V W Connection Terminal U V W Phase SW7 Switch Function Switch MF1 MF2 Fan Motor TB L1 L2 L3 Connection Terminal L1 L2 L3 Power Supply SW8 Switch Function Switch 2184 Solenoid Valve Four Way Valve TB P1 Connection Terminal SW9 Switch Function Switch SV Solenoid Valve Bypass Valve TB P2 Connection Terminal SWP Switch Pump Down CH Crankcase Heater TB C1 Connection Terminal CN31 Connector Emergency Operation 63H High Pressure Switch TB N1 Connection Terminal 55 Connector Connection for Option TH3 Thermistor Outdoor Pipe X52A 52C Relay CNDM Connector TH6 Thermistor Outdoor 2 Phase Pipe Noise Filter Circuit Board Connection for Option Contact TH7 Thermistor Ambient LIA LI2 LI3 NI Connection Terminal Lt L2 L3 N Power Supply CNM Connector A Control Service Inspection Kit TH32 Thermistor Comp Surface LO1 LO2 LO3 Connection Terminal L1 L2 L3 N Power Supply LED1 LED2 LED Operation Inspection Indicators LEV A Electronic Expansion Valve GD1 GD2 Connection Terminal Ground F1 F2 F3 F4 FUSE T6 3AL250V ACL4 Reactor Controller Circuit Board X51 X52 X54 X55 Relay DCL Reactor SW1 Switch Manual Defrost Defect History Record CB1 CB2 Main Smoothing Capacitor Reset Refrigerant Address RS Rush Current Protect Resistor SW4 Switch Test Operation 63H LEV A When M NET adapter is connected TH32 TH7 TH6 TH3 C B
222. r more have passed and then repeat step Open the gas ball valve completely If the refrigerant collecting operation has been completed normally LED1 off LED2 lit the unit will remain stopped until the power supply is turned off Note that when the extension piping is very long with a large refrigerant amount it may not be possible to perform a pump down operation In this case use refrigerant recovery equipment to collect all of the refrigerant in the system Turn off the power supply circuit breaker remove the gauge manifold and then disconnect the refrigerant pipes A Warning When pumping down the refrigerant stop the compressor before disconnecting the refrigerant pipes If the refrigerant pipes are disconnected while the compressor is operating and the stop valve ball valve is open the pressure in the refrigeration cycle could become extremely high if air is drawn in causing the pipes to burst personal injury etc 10 2 START AND FINISH OF TEST RUN Operation from the indoor unit Execute the test run using the installation manual for the indoor unit Operation from the outdoor unit By using the DIP switch SW4 on the control board of outdoor unit test run can be started and finished and its operation mode cooling heating can be set up Q Set the operation mode cooling heating using SW4 2 lt SW4 gt Turn on SW4 1 to start the test run with the operation mode set by
223. rature 10 C 30 C lt Liquid gt Thermistor TH4 Normal Abnormal lt Discharge gt TH4 TH32 160kQ 410kQ Thermistor TH6 TH3 lt Outdoor 2 Phase Pipe gt lt 2 Phase Pipe gt TH6 4 3kQ 9 6kQ Open or short Thermistor TH7 TH7 lt Outdoor gt lt Ambient gt 39kQ 105kQ Thermistor TH8 Heat Sink Thermistor TH32 lt Comp Surface gt Fan Motor MF1 MF2 Refer to next page Solenoid Valve Coil Measure the resistance between the terminals with a tester Four Way Valve At the ambient temperature 20 C 2184 Normal Abnormal Except P125 P140VHA2 P125 P140VHA2 Open or short 1500 1500 1435 1500 Motor for Compressor Measure the resistance between the terminals with a tester MC U Winding temperature 20 C Normal Abnormal P100V P100Y P125 140V P125 140Y 0 88Q 1 410 0 530 1 020 Open short Linear Expansion Valve Disconnect the connector then measure the resistance with a tester Winding temperature 20 C Normal Abnormal Gray Black Gray Red Gray Yellow Gray Orange 46 30 Open or short Solenoid Valve Coil Measure the resistance between the terminals with a tester lt Bypass valve gt At the ambient temperature 20 SV For P125 140 Normal Abnormal 1450 1500 Open short OCH415G 71
224. remote controller during DRY operation The fan speed does not match the setting of the remote controller in HEAT operation OCH415G This is not a malfunction 1 When the HEAT operation starts to prevent the unit from blowing cold air the fan speed is gradually increased from zero to the set speed in proportion to the temperature rise of the discharged air 2 When the room temperature reaches the set temperature and the outdoor unit stops the unit starts the LOW AIR operation 3 During the HEAT operation the DEFROST operation is performed to defrost the outdoor unit During the DEFROST operation the blower is stopped to prevent cold air coming out of the indoor unit 68 The up down vane will be automatically set to horizontal blow in these cases listed up on the left O After a while the up down vane will be automatically moved according to the setting of the remote controller Phone Calls From Customers How to Respond Note Something is wrong with the blower Air blows out for a while after HEAT operation is stopped This is not a malfunction The blower is operating just for cooling down the heated up air conditioner This will be done within one minute This control is conducted only when the HEAT operation is stopped with the electric heater ON However this control is also applied to the models which has no electric heater Something is w
225. rge Tool exclusive for R410A Tool exclusive for R410A x x x Applied oil Apply to flared section Ester oil and alkylbenzene oil minimum amount Ester oil O Alkylbenzene oil minimum amount Safety charger Prevent compressor malfunction when charging refrigerant by spraying liquid refrigerant Tool exclusive for R410A x Charge valve Prevent gas from blowing out when detaching charge hose Tool exclusive for R410A x x Vacuum pump Vacuum drying and air purge Tools for other refrigerants can be used if equipped with adap ter for reverse flow check A Usable if equipped with adapter for rever se flow A Usable if equipped with adapter for rever se flow Flare tool Flaring work of piping Tools for other refrigerants can be used by adjusting flaring dimension A Usable by adjusting flaring dimension A Usable by adjusting flaring dimension Bender Pipe cutter Bend the pipes Cut the pipes Tools for other refrigerants can be used Tools for other refrigerants can be used Welder and nitrogen gas cylinder Refrigerant charging scale Weld the pipes Refrigerant charge Tools for other refrigerants can be used Tools for other refrigerants can be used Vacuum gauge or thermis tor vacuum gauge and vacuum valve Check the degree of vacuum Vacuum valve prevents back flow of oil and refri gerant to thermistor vacuum gauge Tools for o
226. rmal operation state Filter inspection Filter may be clogged 1 Inspection A Performance has dropped Detailed in spection is necessary Inspection B Refrigerant amount is dropping Inspection C Filter or indoor heat exchanger may be Inspection B a a C Indoor intake air temperature Indoor heat exchanger temperature 8 Indoor heat exchanger temperature Indoor intake air temperature a 10 20 30 40 50 60 70 80 C 0 10 20 30 40 50 60 70 80 C o Discharge temperature Outdoor Discharge temperature Indoor clogged heat exchanger temperature heat exchanger temperature The above judgement is just a guide based on Japanese standard conditions It may be changed depending on the indoor and outdoor temperature 1 It may be judged as Filter inspection due to the outdoor temperature even though it is not clogged OCH415G 117 14 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 14 1 HOW TO MONITOR THE OPERATION DATA 14 1 1 PAR 31MAA Details on the operation data including each thermistor temperature and error history can be confirmed with the remote controller D Select Service from the Main menu and press the button Check menu 1 1 Error history Refrigerant volume check Refrigerant leak check Select Check with the F1 F2 button and press the 2 b
227. rmistor TH8 locked detects temperature indicated below Failure of outdoor fan motor P100 140V Airflow path is clogged Check air flow path for cooling P100 140Y Rise of ambient temperature Check if there is something which causes temperature rise around outdoor unit Upper limit of ambient temperature is 46 C Turn off power and on again to check if U5 is displayed within 30 minutes If U4 is displayed instead of U5 follow the action to be taken for U4 Defective thermistor Check resistance value of thermistor TH8 or temperature by microprocessor Thermistor TH8 Refer to 11 6 SW2 on A Control Service Tool Refer to 11 10 Defective input circuit of Replace outdoor power circuit board outdoor power circuit board Failure of outdoor fan drive circuit O Replace outdoor controller circuit board Power module O Outdoor stop valve is closed Open stop valve Check abnormality by driving power module Decrease of power supply Check facility of power supply in case overcurrent is detected 9 Looseness disconnection or Correct the wiring U V W phase to UF or UP error condition converse of compressor wiring compressor Refer to 11 9 Outdoor power connection circuit board Defective compressor Check compressor referring to 11 6 Defective outdoor power circuit Replace outdoor power circuit board board Outdoor fan motor Failure in the operation
228. rol Service Tool PAC SK52ST to connector CNM on outdoor controller board Display 1 Normal condition A Control Service Tool Error code Indication of the display lt 00 etc 08 etc Outdoor controller board LED1 Green LED2 Lighted Lighted Lighted Not lighted Lighted Not lighted Unit condition Alternately blinking display Operation mode When the power is turned on When unit stops When compressor is warming up When unit operates Lighted 2 Abnormal condition Indication Lighted C5 H7 etc Outdoor controller board LED1 Green LED2 Red Contents Inspection method Detailed 1 blinking 2 blinking Connector 63H is open Check if connector 63H on the outdoor controller board is not disconnected GUCheck continuity of pressure switch 63H by tester 2 blinking 1 blinking Miswiring of indoor outdoor unit conne cting wire excessive number of indoor units 4 units or more Check if indoor outdoor connecting wire is connected correctly Check if 4 or more indoor units are connected to outdoor unit Miswiring of indoor outdoor unit co nnecting wire converse wiring or di sconnection GCheck if noise entered into indoor outdoor connecting wire or power supply Startup time over Re check error by turning off power and on again 2 blinking Indoor outdoor unit communication error signal re
229. roller circuit board When items above are checked but the units cannot be repaired 63H connector open Abnormal if 63H connector circuit is open for 3 minutes continuously after power is supplied 63H High pressure switch OCH415G Disconnection or contact failure of 63H connector on outdoor controller circuit board Disconnection or contact failure of 63H 9 63H is working due to defective parts Defective outdoor controller circuit board 50 Check connection of 63H connector on outdoor controller circuit board Refer to 11 9 Check the connecting wire on 63H side Check continuity by tester Replace the parts if the parts are defective Replace outdoor controller circuit board Error Code Abnormal points and detection method Case Judgment and action Indoor outdoor unit connector miswiring excessive number of units 4 units or more 1 Outdoor controller circuit board can automatically check the number of connected indoor units Abnormal if the number cannot be checked automatically due to miswiring of indoor outdoor unit connecting wire and etc after power is turned on for 4 minutes Abnormal if outdoor controller circuit board recognizes the number of connected indoor units as 4 units or more Contact failure miswiring of indoor outdoor unit connecting wire Diameter or length of indoor outdoor unit connecting wire is out of spec
230. rong with the airflow direction D The airflow direction is changed during COOL operation If the up down vane is set to downward in COOL operation it will be automatically set to horizontal blow by the microcomputer in order to prevent water from dropping down 1 Hr will be displayed on the remote controller if the up down vane is set to downward with the fan speed set to be less than LOW The airflow direction is changed during HEAT operation The airflow direction cannot be set by remote controller In HEAT operation the up down vane is automatically controlled according to the temperature of the indoor unit s heat exchanger In the following cases written below the up down vane will be set to horizontal blow and the setting cannot be changed by remote controller 1 At the beginning of the HEAT operation 2 While the outdoor unit is being stopped by thermostat or when the outdoor unit gets started to operate 3 During DEFROST operation The airflow direction will be back to the setting of remote controller when the above situations are released STANDBY will be displayed on the remote controller in case of O and DEFROSTING will be displayed on the screen in case of The airflow direction does not change Up down vane left right louver 1 Check if the vane is set to a fixed position Check if the vane motor connector is removed 2 Check if the air conditio
231. ror 4 134 39 88 C Intake airtemperature Thermostat judge temperature 135 136 137 138 139 140 146 147 148 149 150 Indoor Actual intake air temperature 39 88 151 Indoor Liquid pipe temperature 39 88 152 Indoor condenser evaporator pipe temperature 39 88 o OCH415G 122 1 o o n Description gt Request content Unit Remarks Display range 153 Indoor Fan operating tim 154 0 9999 1 hour After filter is reset Indoor Total operating time 155 6 Mon 0 9999 10 hours Fan motor ON time 156 157 Indoor fan output value Sj value 0 255 Fancontrol data For indoor fan phase control Indoor fan output value 158 es 00 indicates fan control data For indoor fan pulsation control Pulsation ON OFF 159 Indoor fan output value duty value 00 indicates fan control data For indoor DC brushless motor control 160 161 162 Indoor unit Model setting information Referto 14 2 1 Detail Contents in RequestCode 163 Indoor unit Capacity setting information Referto 14 2 1 Detail Contents Request Code 164 Indoor unit SW3 information Undefined _ 165 Wireless pair No indoor control board side setting Referto 14 2 1 Detail Contentsin Request Co
232. s box 4 Remove 2 cover panel rear fixing screws 5 x 12 and remove the cover panel rear Remove the control box Refer to procedure 3 Remove the valve bed Refer to procedure 8 Remove the side panel R Refer to procedure 8 Remove 3 separator fixing screws 4 x 10 and remove the separator 9 Remove the soundproof cover for compressor 10 Recover refrigerant 11 Remove the welded pipe of motor for compressor inlet and outlet and then remove the compressor 12 Remove the 3 points of the motor for compressor fixing nut using a spanner or an adjustable wrench 5 6 7 8 Terminal block Note Recover refrigerant without spreading it in the air Compressor w 215 MC Terminal cover Cover panel Front Cover panel fixing screws Photo 12 14 Removing the accumulator Remove the service panel See Figure 1 Remove the top panel See Figure 1 Remove the cover panel front Refer to procedure 13 Remove the cover panel rear Refer to procedure 13 Remove the control box See Photo 3 Terminal Remove the valve bed Refer to procedure 8 COVER Remove the side panel R Refer to procedure 8 Recover refrigerant Remove welded pipes of accumulator inlet and outlet 0 Remove 2 accumulator leg fixing screws 4 x 10 he 1 2 3 4 5 6 7 8 9 1 Note Recover refrigerant without spreading it in the air Compressor Accumulator leg Accumulator leg
233. scale NES Gas leak detector Use the detector for R134a R407C R410A Adaptor for reverse flow check Attach on vacuum pump Refrigerant charge base Only for R410A Top of cylinder Pink Cylinder with syphon Refrigerant cylinder Refrigerant recovery equipment OCH415G 5 Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series Although the refrigerant piping work for R410A is same as for R22 exclusive tools are necessary so as not to mix with different kind of refrigerant Furthermore as the working pressure of R410A is 1 6 times higher than that of R22 their sizes of flared sections and flare nuts are different Thickness of pipes Because the working pressure of R410A is higher compared to R22 be sure to use refrigerant piping with thickness shown below Never use pipes of 0 7 mm or below Diagram below Piping diameter and thickness Thickness mm Outside diameter mm 6 35 9 52 12 70 15 88 19 05 Nominal dimensions inch 1 4 3 8 1 2 5 8 3 4 Dimensions of flare cutting and flare nut The component molecules in HFC refrigerant are smaller compared to conventional refrigerants In addition to that R410A is a refrigerant which has higher risk of leakage because its working pressure is higher than that of other refriger ants Therefore to enhance airtig
234. sion Valve GD1 GD2 Connection Terminal Ground F1 F2 F3 F4 FUSE T6 3AL250V ACL4 Reactor C B Controller Circuit Board X51X52X54X55 Relay DCL Reactor SW1 Switch Manual Defrost Defect History Record CB1 CB2 Main Smoothing Capacitor Reset Refrigerant Address RS Rush Current Protect Resistor SW4 Switch Test Operation 63H LEV A When M NET adapter is connected TH32 TH7 TH6 TH3 cay M 3 5 C B I vr ie ooo 55 o xi 3 1 1 SP 152 04 Ts 22 1 6 1 31 5 2B le TH3 LEV A CNVMNT CNMNT e SES GLK RED WHD wm Ee EE ee i se 22a 1 1 7 28 8e lt 1 63H 1 GE vw co oa GHD s B c Pp kas um eee ue Cha CN31 3 WND WHT TRANS i 2 E MU Eip 2 I HE 2 F 2 7 ze B F2 t t CNAC g 8 5 z WHT x x x 2 59 1 2 Svi CNS F1 F4 Hasa 3 M sv 3 WHT fp SI Gan 59 Bday 35 57 8 2 3 1 EF WHT X3 P125 P140 only 2184 SV X1 MODEL SELECT X3 H CH The black square m indicates a switch position 53 MODEL SW6 SWS5 6 2 E ON ON sov 0 aM MM o HHHHHR 12345678 123456 ON ON sesv o a M MM HHHHHR 12345678 123456 ON ON Gre al ors HHHHHB XL W BLK w MC 12345678 123456 X2 SWS 1 to 5 Function Switch
235. t to flash Jere SELECTION This operation is not possible for single refrigerant systems and then the remote controller s display content will change as shown below i FUNCTIOH Refrigerant address ELECTA eae display section Ifthe unit stops after FUNCTION flashed for 2 seconds or 88 flashes in the room temperature display area for 2 seconds a transmission error may have occurred Check to see if there are any sources of noise or interference near the transmission path Note If you have made operational mistakes during this procedure exit function selection see step 40 and then restart from step Set the indoor unit number Press the CLOCK buttons Cv gt and C A D to select the unit number Pressthe ON OFF button so that flashes in the unit number of the indoor unit for which you want to perform function selection The unit number changes to 00 01 02 03 04 and AL each time a button is display area pressed Uni b no 1058 nit number ag LIU LIU display section VS To set modes 01 to 06 or 15 to 22 select unit number 00 To set modes 07 to 14 or 23 to 28 carry out as follows To set each indoor unit individually select 01 to 04 To set all the indoor units collectively select AL Confirm the refrigerant address and
236. tamination inside refrigerant piping can cause deterio ration of refrigerant oil etc Handle tools with care Store the piping indoors and both ends of the piping sealed until just before brazing Leave elbow joints etc in their packaging If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Do not use a charging cylinder If a charging cylinder is used the composition of refrigera nt will change and the efficiency will be lowered The refrigerant oil applied to flare and flange connections must be ester oil ether oil or alkylbenzene oil in a small amount Use the specified refrigerant only If large amount of mineral oil enters that can cause deterio ration of refrigerant oil etc Charge refrigerant from liquid phase of gas cylinder If the refrigerant is charged from gas phase composition change may occur in refrigerant and the efficiency will be lowered Never use any refrigerant other than that specified Doing so may cause a burst an explosion or fire when the unit is being used serviced or disposed of Correct refrigerant is specified in the manuals and on the spec labels provided with our products We will not be held responsible f
237. tart of self diagnosis Press the ON OFF button 2 Self diagnosis will be cancelled and the indoor unit will stop 11 3 5 Remote controller check lt PAR 21MAA gt If the air conditioner cannot be operated from the remote controller diagnose the remote controller as explained below O First check that the power on indicator is lit gt If the correct voltage DC12 V is not supplied to the remote controller the seers 5 indicator will not light If this occurs check the remote controller s wiring and the indoor unit E Power on indicator Switch to the remote controller self diagnosis mode Press the FILTER button to start self diagnosis Pressthe CHECK button for 5 seconds or more The display content will change as shown below SELF HECK ELF CHECK lt Fie pr E lore L UN L Remote controller self diagnosis result When the remote controller is functioning correctly When the remote controller malfunctions Error display 1 NG flashes gt The remote controller s transmitting receiv ing circuit is defective r ae 9 RL KL Check for other possible causes as there is no problem with the remote controller I Where the remote controller is not defective but cannot be operated Error display 2 6833 or
238. te controller stopped For modes 15 and higher press and at the same time Specify refrigerant address 00 outdoor unit Specify unit No 00 indoor unit Use and Specified indoor unit FAN operation Enter the setting Press Change refrigerant address or unit No Select mode 02 room temperature detection position Select setting No 03 remote controller fixed Use and Example Selecting room temperature detection position Enter the setting Press Ending function display Press and at the same time The above procedure must be carried out only if changes are necessary 105 OCH415G Operating Procedure Check the setting items provided by function selection If settings for a mode are changed by function selection the functions of that mode will be changed accordingly Check all the current settings according to steps to fill in the Check column in Table 1 and then change them as necessary For factory settings refer to the indoor unit s installation manual Switch off the remote controller lt Set the outdoor unit s refrigerant address Hold down the FILTER C_D mode is 15 to 28 and TEST Press the CLOCK buttons C and A D to select the FUNCTION desired refrigerant address The refrigerant address changes from 00 to 15 buttons simultaneously for atleast 2 seconds will star
239. tection method Case Judgment and action Communication error with communication processor Defective communication between unit processor and transmission processor Note The address and attribute display at remote controller indicate the controller that detected abnormality Data of transmission processor or unit processor is not transmitted normally because of accidental trouble such as noise or thunder surge Address forwarding from unit processor is not transmitted normally because of defective transmission processor hardware Turn off the power supply of outdoor unit indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again System returns normally if abnormality was accidental malfunction If the same abnormality generates again abnormality generated controller may be defective NO ACK signal 1 Transmitting side controller detects abnormal if a message was transmitted but there is no reply ACK that a message was received Transmitting side detects abnormality every 30 seconds 6 times continuously Note The address and attribute displayed at remote controller is indicate the controller that did not reply ACK Common factor that has no relation with abnormality source The unit of former address does not exist as address Switch has changed while the unit was energized Extinction of transmission wire voltage and signal is caused by ov
240. the air conditioner is under the control of external directive 69 There might be a case that CENTRALLY CONTROLLED INDICATOR will not be displayed Phone Calls From Customers How to Respond Awhite mist is expelled from the indoor unit This is not a malfunction This may occur when the operation gets started in the room of high humidity Water or moisture is expelled from the outdoor unit Cooling when pipes or piping joints are cooled they get sweated and water drips down Heating water drips down from the heat exchanger Make use of optional parts Drain Socket and Drain pan if these water needs to be collected and drained out for once The display of wireless remote controller gets dim or does not come on The indoor unit does not receive a signal from remote controller at a long distance OCH415G Batteries are being exhausted Replace them and press the reset button of remote controller 70 11 6 HOW TO CHECK THE PARTS PUHZ P100 125 140VHA2 UK PUHZ P125 140VHA21 UK PUHZ P100 125 140VHA3 UK PUHZ P100 125 140VHA3R1 UK PUHZ P100 125 140VHA3R2 UK PUHZ P125 140VHA3R3 UK PUHZ P100VHA4 UK PUHZ P100 125 140YHA UK PUHZ P100 125 140YHAR1 UK PUHZ P125 140YHAR2 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK Parts name Check points Thermistor TH3 Disconnect the connector then measure the resistance with a tester Outdoor Pipe At the ambient tempe
241. ther refrigerants can be used Charging cylinder Refrigerant charge Tool exclusive for R410A X Prepare new tool Use the new tool as the tool exclusive for R410A A Tools for other refrigerants can be used under certain conditions Tools for other refrigerants can be used OCH415G 4 FEATURES h D c a T 5005 PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA21 UK PUHZ P140VHA21 UK PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P125VHA3R1 UK PUHZ P140VHA3R1 UK PUHZ P125VHA3R2 UK PUHZ P140VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P140VHA3R3 UK PUHZ P125YHA UK PUHZ P140YHA UK PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK PUHZ P100YHA2R1 UK CHARGELESS SYSTEM PRE CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT Max 30m PUHZ P125 P140 The refrigerant circuit with LEV Linear Expansion Valve and Accumulator always control the optimal refrigerant level regard
242. times temperature temperature M Operating Outside air Fier operating current A temperature time Hours The filter operating time is the time that has elapsed since the filter was reset 13 2 MAINTENANCE MODE OPERATION METHOD Ifyou are going to use 13 3 GUIDE FOR OPERATION CONDITION set the airflow to High before activating maintenance mode Switching to maintenance mode Maintenance mode can be activated either when the air conditioner is operated or stopped It cannot be activated during test run Maintenance information can be viewed even if the air conditioner is stopped W Remote controller button information a a MITSUBISHI ELECTRIC 1 ig 34 nn LILI cuum ae 0 2 ON OFF es Operation mode Compressor information Outdoor unit information Indoor unit information 20385 OMENU X FILTER G G G G gt 3864 TEST GD Gs GD PAR 21MAA CLEAR Activate cancel maintenance mode 1 Press the TEST button for 3 seconds to switch to maintenance mode Display If stable operation is unnecessary or if you want to check the data with the air conditioner stopped skip to step 4 Fixed Hz operation The operating frequency can be fixed to stabilize operation of inverter model If the air conditioner is currently stopp
243. tion of transmission connector CN2M of indoor unit Defective transmitting receiving circuit of indoor unit or remote controller 59 Always try the followings when the error A7 occurs Turn off the power supply of outdoor unit indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again If malfunction was accidental the unit returns to normal Check address switch of abnormality generated address Check disconnection or looseness of abnormality generated or abnormality detected transmission wire terminal block and connector Check if tolerance range of transmission wire is not exceeded Check if type of transmission wire is correct or not If there were some troubles of O above repair the defective then turn off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again If there was no trouble with above in single refrigerant system one outdoor unit controller of displayed address or attribute is defective If there was no trouble with above in different refrigerant system two or more outdoor units judge with amp If address of abnormality source is the address that should not exist there is the unit that memorizes nonexistent address information Delete useless address information with manual setting function of remote controll
244. tional humidifier Not supported PLA only Supported Vane differential setting No 1 setting TH5 24 28 in heating mode No 2 setting Standard 5 28 32 cold wind prevention No 3 setting TH5 32 38 Not available Swing Available Wave air flow Set temperature n heating Available Fan speed during the Extra low heating thermo OFF Stop Set fan speed Fan speed during the Set fan speed cooling thermo OFF Stop Detection of abnormality of _Available the pipe temperature P8 Not available 1 PKA HAL KAL 2 deg up 1 2 3 1 2 3 1 2 3 1 2 1 2 3 1 2 1 2 3 mn mo J n a Mi N j PEAD RP JA L Seting Initial setting External static Setting No Initial setting Function Settings Factory setting pressure Mode No 08 Mode No 10 Factory setting Filter sign 100h 35Pa 1 2500h 50Pa No filter sign indicator 70Pa External static pressure 35 50 70 100 150Pa me EET the ae 100Pa External static pressure 35 50 70 100 150Pa r to the right table 150Pa Set temperature in heating Available mode 4 deg up Not available Fan speed during the Extra low heating thermo OFF Stop Set fan speed Fan speed during the Set fan speed cooling thermo OFF Stop Detection of abnormality Available
245. tor Connect to the outdoor outdoor controller current Connect to Heat sink TH8 noise filter circuit board circuit board CN4 the outdoor noise filter LO1 LO2 LO3 circuit board CNCT 400V AC CN2 Connect to the outdoor controller circuit board CN2 O O Power circuit board Transmitting signal to the controller board 0 5V DC Zero cross signal 0 5V DC Not used 6 9 16V DC 16V DC 6 6 0 0 0 OCH415G 86 DIP IPM Ga ss Outdoor power circuit board PUHZ P100YHA2R1 UK Brief Check of POWER MODULE If they are short circuited it means that they are broken 1 Check of DIODE MODULE Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc L1 P1 LL2 P1 ES E1 IN1 22 N1 IES IN1 2 Check of DIP IPM 2 0 2 P2i IWJ N2 U IN2 IVj N2 W Note The marks L1 1121 1 3 INT N2 IP1 P2 U V and W shown in the diagram are not actually printed on the board TB P3 TB U TB V TB W Connect to the DCL Connect to the compressor MC Voltage among phases 10V 400V AC Diode module TB P1 maoa 00000000000000
246. u044 lou A ddns 5 I eve TE X A I x a 5 Syeiu iiv 3 3 L e I UU JO U 4 re U ejpueH 10 el 104 lpueH uogeoo 3ATVA 4015 30 Lx SOS 8 2 29 6 3tuv1d uonoeuuoo edid AINON 2 z z t s z uou 8 5 88 5 4 14 uonoeuuoo edid svo 1 44614 OPIS ddns j8Mog 91 que3 104 BXEIULIIESU 056 S oN JO OLW log S ou e o 9exc L Z lt efieuosig VM BM s 7 NOLLWANAOS 29 em Jelu 5 x x iufieu gt i 22 9 c9 Ajpeooj paseyound 2 9je lt lt GIN IDE Mojeq pue 191 JYBu aq snw pue sllog 8 au umoys SI sreap jo x p uolou padeys NZ SUOHOSIIP BPEL eq UBD SHOQ OLN ale 95900 IA S 10J oiseq 555
247. unit FRESH MASTER or LOSSNAY Noise has entered into transmission signal and signal was transformed Search the unit with same address as abnormality occurred If the same address is found turn off the power supply of outdoor unit indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more after the address is corrected and turn the power on again Check transmission wave form or noise on transmission wire Hardware error of transmission processor Transmission processor intended to transmit 0 but 1 appeared on transmission wire Note The address and attribute display at remote controller indicate the controller that detected abnormality Q Error is detected if wave form is transformed when wiring works of transmission wire of outdoor unit indoor unit FRESH MASTER or LOSSNAY are done or polarity is changed with the power on and transmission data collide each other Defective transmitting receiving circuit of transmission processor Transmission data is changed by the noise on transmission If the work of transmission wire is done with the power on shut off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again Check transmission wave form or noise on transmission wire BUS BUSY 1 Overtime error by signal collision damage Abnormal if transmitting is not possible for
248. unit number When the refrigerant address and unit number are confirmed by pressing the dici MODE button to confirm the refrigerant address and MODE button the corresponding indoor unit will start fan operation This X PE YAW helps you find the location ofthe indoor unit for which you wantto perform function After hile II start to flash in the mode number display area H terawhie i B PSY selection However if 00 or AL is selected as the unit number all the indoor units corresponding to the specified refrigerant address will start fan operation Mode number display section Example When the refrigerant address is set to 00 and the unit number is 02 00 refrigerant address Outdoor unit 88 will flash in the room temperature display area if the selected refrigerant address does not exist in the system Indoor unit No 01 No 02 No 08 Furthermore if F appears and flashes in the unit number display area and refrigerant address display area also flashes there are no units that corre spondto the selected unit number In this case the refrigerant address and unit Cf emote controle mode number may be incorrect so repeat steps and to set the correct ones When grouping different refrigerant systems if an indoor unit other than the one to which the refrigerant address has been set performs fan operation there may be another refri
249. urce refrigerant address unit model manufacturing number contact information dealer s phone number can be displayed The unit model manufacturing number and contact information need to be registered in advance to be displayed Weekly timer Use to set the weekly operation On Off times Up to eight operation patterns can be set for each day Clock setting is required Not valid when the On Off timer is enabled Energy saving Auto return Use to get the units to operate at the preset temperature after performing energy save operation for a specified time period Time can be set to a value from 30 and 120 in 10 minute increments This function will not be valid when the preset temperature ranges are restricted Schedule Set the start stop times to operate the units in the energy save mode for each day of the week and set the energy saving rate Up to four energy save operation patterns can be set for each day Time can be set in 5 minute increments Energy saving rate can be set to a value from 0 and 50 to 90 in 10 increments Clock setting is required Night setback Use to make Night setback settings Select Yes to enable the setting and to disable the setting The temperature range and the start stop times can be set Clock setting is required Restriction Temp range Use to restrict the preset temperature range Different temperature r
250. utdoor controller circuit board CN2 1 5 Transmitting signal to outdoor controller circuit board 0 5 V DC 2 5 Zero cross signal 0 5 V DC 3 4 18 V DC 6 5 16 V DC 7 5 16 V DC CN4 Connect to the outdoor controller circuit board CN4 N2 CN52C CNDC Connect to the smoothing 52C driving signal 280 380 V DC capacitor CB Connect to the outdoor Connect to the outdoor controller circuit board controller circuit board E2 CN52C CNDC Connect to the earth rz L T HAND V Wace LING U V W P2 Nu DCL2 El E4 CNAC1 CNAC2 Connect to the Connect to the Connect to DCL Connect to 230 V AC Voltage of 230 V AC is compressor MC smoothing capacitor the earth Connect to the input Connect to the Voltage among phases outdoor controller terminal block TB1 10 V 180 V AC circuit board CNAC OCH415G 84 Outdoor power circuit board PUHZ P100YHA UK PUHZ P125YHA UK PUHZ P140YHA UK PUHZ P100YHAR1 UK PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK CN5 CN4 Detection of Connect to the primary current outdoor controller Connect to the circuit board outdoor noise filter CN4 circuit board CNCT Brief Check of POWER MODULE Usually they are in a state of being short circuited if they are broken Measure the resistance in the
251. utdoor units have a short cycle on their air ducts Check if connector 63H on outdoor controller board is not disconnected Check if heat exchanger and filter are not dirty Measure resistance values among terminals on linear expansion valve using a tester 3 blinking Abnormality of outdoor fan motor rotational speed Protection from overheat operation TH3 Check the outdoor fan motor Check if the connector of TH3 on outdoor controller board is disconnected 4 blinking Compressor over current breaking Start up locked Compressor over current breaking Abnormality of current sensor P B Abnormality of power module Check if stop valves are open Check looseness disconnection and converse connection of compressor wiring Measure resistance values among terminals on compressor using a tester Check if outdoor unit has a short cycle on its air duct 5 blinking Open short of discharge thermistor TH4 TH32 Open short of outdoor thermistors TH3 TH6 TH7 and TH8 Check if connectors TH3 TH4 or TH32 TH6 and TH7 on outdoor controller board and connector CN3 on outdoor power board are not disconnected Measure resistance value of outdoor thermistors 6 blinking Abnormality of heatsink temperature Check if indoor outdoor units have a short cycle on their air ducts Measure resistance value of outdoor thermistor TH8 7 blinking Abnorma
252. utton Smooth maintenance Request code Service menu wm Select Request code with the F1 or F2 button and press the button C Fl Fe F4 Set the Refrigerant address and Request code CERTESNSSUE gt Ref address E Select the item to be changed with the F1 or 22 button Requestcode 8804 Select the required setting with the F3 or F4 button Request V u lt Ref address gt setting 0 15 m lt Request codessetting SS sasa ee Fl Fe F3 F4 Press the button Data will be collected and displayed v Request code y Ref address KE Request code Request code 004 o Discharge temperature 69 C Request VY lt Operation state gt Request code 0 pala display 2 Relay output state pela Display pone autc Compressor Four way valve Solenoid valve supplied to compressor Operation mode 0 Relay output state 1 ON 2 ON 3 ON ON 1 Operation mode 4 ON Display Operation mode 5 ON ON 0 STOP FAN 6 ON ON H HEAT 8 ON d Defrost A ON ON OCH415G 118 14 1 2 PAR 21MAA Turn onthe Monitoring the operation data MITSUBISHI ELECTRIC 9 Example Request code 004 Discharge temperature 69 C ers 59
253. y Contrast Display details Auto mode Language selection Administrator password Service Service menu Test run Drain pump test run Function setting Check Self check Input maintenance info Lossnay City Multi only Maintenance password Remote controller check buttons and press the Not all functions are available on all models of indoor units OCH415G 109 SELECT button lt Main menu list of PAR 31MAA gt Setting and display items Setting details Vane Louver Vent Use to set the vane angle Lossnay Select a desired vane setting from five different settings Use to turn ON OFF the louver Select a desired setting from ON and OFF Use to set the amount of ventilation Select a desired setting from Off Low and High High power Use to reach the comfortable room temperature quickly Units can be operated in the High power mode for up to 30 minutes Timer On Off timer Use to set the operation On Off times Time can be set in 5 minute increments Clock setting is required Auto Off timer Use to set the Auto Off time Time can be set to a value from 30 to 240 in 10 minute increments Filter information Use to check the filter status The filter sign can be reset Error information Use to check error information when an error occurs Error code error so

SERVICE MANUAL - Aire Acondicionado Mitsubishi Electric

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