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VRF Medium Static Ducted Service Manual A11-011

1. Case 1 A MN LS Remove the group wire of the Z Group wire D dl terminal blocks A and B of the Remote changed indoor unit and then controller install the remote controller only Indoor unit board Indoor unit Service P C board of the unitto be changed Case 2 Sy Group wire Z Cr Remote Remove CN41 connectors of the indoor units other controller than the units to be changed in the same group P C board parts layout drawing lt MCC 1510 gt DIP switch SW01 SW02 EEPROM IC10 Method of DIP switch setting Selected content MMD AP BH2UL series At shipment No use Setup of external static pressure No use Setup of external static pressure 1 Match to set up contents of P C board before replacement 81 Procedure2 3 Writing of the setup contents to EEPROM The contents of EEPROM installed on the service P C board have been set up at shipment from the factory SET CL 1 Push 5 O and A buttons of the remote controller at the same time for 4 seconds or more 1 Corresponded with No in Remote controller as shown below picture The UNIT No Azz is displayed In this time the CODE No DN Z is displayed The fan of the indoor unit operates an
2. CODE No Data name Display format Unit Remote controller display example 00 Room temperature During control x1 F 0081 71 F 27 C 01 Room temperature Remote controller x1 F 02 Indoor suction temperature x1 F 03 Indoor coil temperature TCJ x1 F 5 04 Indoor coil temperature TC2 x1 F 0075 75 F 24 C 8 05 Indoor coil temperature 1 x1 F 06 Indoor discharge temperature TF x1 F 08 Indoor PMV opening x1 10 pls 0150 1500 0 No of connected indoor units x1 unit 0024 24 units 0B Total capacity of connected indoor units x10 ton 0215 21 5ton 2 0 No of connected outdoor units x1 unit 0002 2 units gt 0 00 Total capacity of outdoor units x10 ton 0160 16ton CODE No YS Data name Display format Unit Remote controller display example 10 20 High pressure sensor detention pressure Pd x10 psi 4350 435psi 11 21 Low pressure sensor detention pressure Ps x10 psi 12 22 Compressor 1 discharge temperature Td1 x1 F 13 23 Compressor 2 discharge temperature Td2 x1 F 14 24 Compressor 3 discharge temperature Td3 x1 F E 15 25 Suction temperature TS x1 F o 0075 75 F 24 C 16 26 Outdoor coil temperature 1 1 x1 F E 17 27 Outdoor coil temperature 2 TE2 x1 F 18 28 Temperature at liquid side TL x1 F 5 19 29 Outside ambient
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4. Light block Check code Cause of fault Operation Timer Ready F01 Heat exchanger temperature sensor TCJ error V v F02 Heat exchanger temperature sensor TC2 error ZY TS F03 Heat exchanger temperature sensor TC1 error unit temperature sensor E eT F10 Ambient temperature sensor TA error F11 Discharge temperature sensor TF error Operation Timer Ready F04 Discharge temperature sensor TD1 error G G O F05 Discharge temperature sensor TD2 error YN ZTA F06 Heat exchanger temperature sensor TE1 TE2 error l os Outdoor unit temperature Alternate blinking F07 Liquid temperature sensor TL error Sensor enos F08 Outside air temperature sensor TO error F12 Suction temperature sensor TS1 error F13 Heat sink sensor TH error F15 Wiring error in heat exchanger sensor TE1 and liquid temperature sensor TL Outdoor unit temperature sensor wiring installation error F16 Wiring error in outdoor high pressure sensor Pd and low pressure sensor Ps Outdoor pressure sensor wiring error F22 Outdoor discharge temperature sensor TD3 error F23 Low pressure sensor Ps error Outdoor unit pressure sensor F24 High pressure sensor Pd error errors Operation Timer Ready vo pos ps e F29 Fault in indoor EEPROM L Synchronized blinking H01 Compressor breakdown Operation Timer Ready Outdoor unit compressor Vl H02 Compressor lockup related ierrors e ES e H03 Current detection c
5. 87 ee 0214BH2UL Serie 0304BH2UL 0364BH2UL 0424BH2UL 201 43120239 FAN MULTI BLADE 3 3 3 3 3 203 4314 470 REFRIGERATION CYCLE ASSY 1 1 1 1 204 43196012 BUSHING 2 2 2 2 2 206 43079249 BAND HOSE 1 1 1 1 1 207 43125131 BEARING SHAFT 1 1 1 1 1 208 43125162 COUPLING 1 1 1 1 1 210 43070146 HOSE DRAIN 1 1 1 1 1 211 43177019 PUMP DRAIN ADP 1406 1 1 1 1 1 212 43151294 SWITCH FLOAT FS 0218 102 1 1 1 1 1 213 43125163 SHAFT 1 1 1 1 1 214 43172221 PAN ASSY DRAIN 1 1 1 1 1 216 43171080 SOCKET PAN DRAIN 1 1 1 1 1 217 43158138 LABEL WARNING 1 1 1 1 1 218 43F19904 HOLDER SENSOR TS 2 2 2 2 2 219 43F47609 BONNET 3 8 IN 1 1 1 1 1 221 43107215 HOLDER SENSOR 1 1 1 1 1 222 43194029 BONNET 5 8 IN 1 1 1 1 1 223 43179110 PLUG 1 1 1 1 1 224 43179126 RUBBER PUMP DRAIN 3 3 3 3 3 225 43170233 HOSE DRAIN 1 1 1 1 226 4312C092 MOTOR FAN MF 240U150 2A 1 1 1 1 1 228 43146743 MOTOR PMV EFM MD12TF 1 1 1 1 1 1 229 43146726 BODY PMV 1 1 1 230 43146723 BODY PMV 1 1 231 43149355 NUT FLARE 3 8 IN 1 1 1 1 1 232 43049776 SOCKET 3 8 IN 1 1 1 1 1 233 43149352 NUT FLARE 5 8 IN 1 1 1 1 1 235 43149354 SOCKET 5 8 IN 1 1 1 1 1 237 43104208 PLATE SHIELD UNDER 1 1 1 1 1 239 43104211 PLATE SHIELD UNDER 1 1 1 1 1
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8. osvxosv Hod xoeu be 00b S S h I lt peJnooud 910U 10 0S1 6 S 10 091 6 9 peinooud jeool av eouioe 3 peoujoo 3 099 212 CONSTRUCTION VIEWS EXTERNAL VIEWS 2 Medium Static Ducted Type MMD AP0074BH2UL MMD AP0094BH2UL MMD APO124BH2UL 2 1 OM pue JOOpU eu eoueuajureui JO eoeds ezis fulag Burnas pue uomnejeisur 40 eoeds epis yeyu P L6 9 oce 9 ct Ria anc n Buidid dn ureiq x c eve 9 6 mony IS 9 127 98 L episjno eDuej yezu Jr opis abue exeiur E 5 E ss l 10 00 L 1015 c RE 2 PES ay 178914001 801 Jopoy B x a e pjos Ajayesedas e euns jepun exelul 104 lt d exei jepu 1 epis pinbry v 9 v LQ uod Ajddns 1ewod 104 ejoH z zz 8 edid peunooud epis seo
9. 67 Check code Main remote controller Outdoor 7 segment display Check code Sub code Location of detection Description System status Error detection condition s Check items locations P19 P19 Detected outdoor unit No VF 4 way valve reversing error All stop Abnormal refrigerating cycle data is collected during heating operation Check for defect in main body of 4 way valve Check for coil defect in 4 way valve and loose connection of its connector Check resistance characteristics of TS1 and TE1 sensors Check output voltage characteristics of Pd and Ps pressure sensors Check for wiring error involving TE1 and TL sensors P20 P20 VF Activation of high pressure protection All stop Pd sensor detects pressure equal to or greater than 522psi 3 6MPa Check for defect in Pd pressure sensor Check service valves gas side liquid side to confirm full opening Check for defect in outdoor fan Check for defect in outdoor fan motor Check outdoor PMVs PMV1 2 4 for clogging Check indoor outdoor heat exchangers for clogging Check for short circuiting of outdoor suction discharge air flows Check SV2 circuit for clogging Check for defect in outdoor P C board I F Check for defect in indoor fan system possible cause of air flow reduction Check opening status of indoor PMV Check indoor
10. HEAT READY Displayed on the remote controller HEAT READY 1 Normal thermo OFF display During heating the indoor unit goes thermo OFF as the heating temperature setting is reached During heating the fan rotates at a breeze speed UL or lower or remains stationary to prevent cold air from being discharged including defrosting operation Forced thermo OFF HEAT operation is unavailable because atleast one indoor unit is operating in COOL DRY mode under priority cooling setting bit 1 of SW11 on outdoor I F P C board ON Selection of 1 Selection of the contents that can be operated by the remote controller at the indoor central control unit side is possible according to setting at the central controller side mode 2 Setting contents n case of TCC LINK central control Operation from Operation on RBC AMT32UL On TCC LINK ON OFF Operation Timer Temp Airspeed Airdirection RBC AMT32UL central control setting selection setting setting setting setting Individual Central 1 Central 2 Central 3 Central 4 Central control dis play O Operation possible X Operation impossible ue DC motor Outline of specifications 1 When the fan stator positioning is performed for the starter and the rotor Vibrate slightly 2 DC motor operates according to the command from the indoor controller Note If the fan rotates by
11. Type DN code 10 Value Type Model 0004 Medium static ducted type MMD AP BH2UL 1 Default value stored in EEPROM mounted on service P C board Indoor Unit Capacity DN code 11 Value Capacity 1 Default value stored in EEPROM 0000 Invalid mounted on service P C board 0001 007 type 00038 009 type 0005 012 type 0007 015 type 0009 018 type 0010 021 type 0011 024 type 0012 027 type 0013 030 type 0015 036 type 0016 042 type 0017 048 type 0018 056 type 0021 072 type 0023 096 type NE 0000 Operation stop 7 4 Applied Control in Indoor Unit B Remote location ON OFF control box TCB IFCB 4UL Wiring and setup Use the exclusive connector for connection with the indoor control P C board n a group control the system can operate when connecting with any indoor unit Control P C board in the group However when taking out the operation error signal from the other unit it is necessary to take out from each unit individually 1 Control items 1 Start Stop input signal Operation start stop in unit 2 Operation signal Output during normal operation 3 Error signal Output during alarm Serial communication error or indoor outdoor protective device operation 2 Wiring diagram using remote control interface TCB IFCB 4UL Input IFCB 4UL No voltage ON OFF serial signal Output No voltage con
12. Indoor unit fails to communicate while automatic E15 e E15 e e 9 a automatic address address setting for indoor units is in progress Combined capacity of indoor units is too large 00 Overloading Too many indoor units 7 EM 01 Number of units connected E16 e e 9 connected overloading due than 195 of eo ibined capacity r Gutdo E19 00 No header unit E19 Error in number of outdoor There is no or more than one outdoor header unit 02 Two or more header units e e 9 header units in one refrigerant line 01 Connection of outdoor unit from Connection to other indoor unit from othier refrtiaerarit line is detected E20 other refrigerant line E20 refrigerant line found while indoor automatic address setting is in 02 Connection of indoor unit from during automatic address TOSI SS other refrigerant line setting prog Outdoor outdoor E23 _ E23 e e conimuhiicati n cannot be transmitted to other outdoor transmission error Duplicated follower There is duplication in outdoor addresses set E25 E25 9 outdoor address manually Follower outdoor unit initially communicating E26 Address of outdoor unit from which E26 Dropping ut Of outdoor normally fails to do so reduction in number of signal is not received normally unit follower outdoor units connected Outdoor header unit detects fault relating to E28 Detected outdoor unit No E28 e e Outdoor follower unit error follower outdoor unit d
13. sensor error e sensor for oil level Ma sa Orol Mal detection 04 TK4 sensor error detection TK1 5 P 05 TK5 sensor error Outdoor discharge Wiring installation error or detachment of outdoor H15 H15 e temperature sensor TD2 discharge temperature sensor TD2 has been wiring error detected 01 TK1 oil circuit error 02 TK2 oil circuit error Oil level detection circuit No temperature change is detected by H16 03 TK3 oil circuit error H16 temperature sensor for oil level detection 1 5 04 oil circuit error despite compressor having been started 05 TKS oil circuit error Outdoor discharge Wiring installation error or detachment of outdoor H25 _ H25 e e temperature sensor discharge temperature sensor has been wiring error detected Duplicated outdoor Identical refrigerant line address has been L04 _ L04 SIM refi erant line address assigned to outdoor units belonging to different 9 refrigerant piping systems Duplicated pron indoor More than one indoor unit has been set up as LOS e SIM unit as displayed on iority ind UM iority indoor unit priority indoor unit Number of priority indoor units priority 106 check code LOS L06 depending Duplicated priority indoor on individual unit 06 sim Unit as displayed on More than one indoor unit has been set up as Z e indoor unit other than priority indoor unit priority indoor unit
14. Flashing Goes off ALT Flashing is alternately when there are two flashing LED SIM Simultaneous flashing when there are two flashing LED Check code Display of receiving unit Outdoor 7 segment display TCC LINK central control Indicator light block Typical fault site Description of error ormainremote i Sub code controller Operation Timer Ready Flash display VS Nu mberof indodrunmtsdrom which Indoor unit initially communicating normally fails to E06 E06 e e Dropping out of indoor unit return signal reduction in number of indoor units signal is received normally connected Indoor outdoor Signal cannot be transmitted to indoor units E07 _ E04 e communication circuit indoor units left without communication from error outdoor unit More than one indoor unit is assigned same E08 Duplicated indoor address E08 Duplicated indoor address address also detected at indoor unit end ndoor automatic address setting is started while PT automatic address setting for equipment in other E12 i 12 Automatic address starting refrigerant line is in progress communication e e error Outdoor automatic address setting is started while automatic address setting for indoor units is in progress Indoor unit not found m
15. 43166013 REMOTE CONTROLLER SX TAO1UE 43166014 REMOTE CONTROLLER SX TBO1UE 43166015 REMOTE CONTROLLER SX UAO1UE 43166016 REMOTE CONTROLLER WX TAO1UES 43162074 COVER E PARTS 43119523 PLATE 91 1 2 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Electric Parts MMD AP0484B H2UL 3ARHO 405 404 CN50 8 5 408 EOL CN60 O ONN n CN61 T10 OPTION 401 403 Location No 43050425 Description Sensor Ass y Service TC F6 Model Name MMD AP0484B H2UL N 4350426 Sensor Service 43150320 Sensor Ass y Service TG F 6 43160574 Terminal 4P 43160626 Terminal Block 2P 20A 43158193 Reactor 43054107 Relay LY 1f 4316V483 PC Board Ass y MCC 1510 4316V484 PC Board Ass y MCC 1431 92 Pele et ete eB WARNINGS ON REFRIGERAN
16. Setthe line address for every line using SW13 and 14 on the interface P C board of the Header unit in each line e Except the least line address No turn off SW30 2 on the interface P C board of the Header units in the lines connected to the identical central control Draw the terminal resistances of indoor outdoor and central control line wirings together For each refrigerant line connect the relay connector between Header unit U 1U 2 and U3U4 terminals After then setthe central control address For setting of the central control address refer to the Installation manual for the central control equipment 36 B Confirmation of indoor unit No position 1 To know the indoor unit addresses though position of the indoor unit is recognized n case of individual operation Wired remote controller indoor unit 2 1 1 Follow to the procedure during operation Procedure l Push L button button at left side if the unit stops 2 Push 7 button button at left side Unit No 1 1 is displayed on LCD It disappears after several seconds The displayed unit No indicate line address and indoor unit address When other indoor units are connected to the identical remote controller Group control unit other unit numbers are also displayed every UNIT LOUVER pushing e button button at left side 1 Operation SAVE FILTER RESET TEST SWING FIX Operation
17. Check connection of TE1 TE2 sensor connectors Check resistance characteristics of TE1 TE2 sensors Check for defect in outdoor P C board I F F07 F07 VF TL sensor error All stop Sensor resistance is infinity or zero open short circuit Check connection of TL sensor connector Check resistance characteristics of TL sensor Check for defect in outdoor P C board I F 59 Check code Location Outdoor 7 segment display inti System Error detection i Nain PL Description status condition s Check items locations controller Check code Sub code VF TO sensor All stop Sensor resistance is infinity Check connection of TO error or zero open short circuit sensor connector Check resistance FOR Fog characteristics of TO sensor Check for defect in outdoor P C board I F Indoor Indoor TA Stop of Sensor resistance is infinity Check connection of TA unit sensor error corresponding or zero open short circuit sensor connector and wiring 10 _ _ unit Check resistance characteristics of TA sensor Check for defect in indoor P C board Indoor Indoor TF Stop of Sensor resistance is infinity Check connection of TF unit sensor error corresponding or zero open short circuit sensor connector and wiring 11 _ _ unit Check resistance characteristics of TF sensor Check for defect
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19. 1 2 2 2 2 4 Push C5 button OK when display goes on ___ Follower 5 Indoor unit address Header unit Using the temperature setup C For the above example perform setting by connecting singly the buttons set 3 to the CODE No wired remote controller without remote controller inter unit cable Group address Using timer time v buttons Mole m PE set 1 to the line address Follower unit 0002 In case of group control 7 Push C5 button OK when display goes on 8 Group address Using the temperature setup buttons set to the CODE No NI gt an m f 71 9 Using timer time v buttons HH HS ui set 22717 to Individual ZZZ to TE mm Header unit and 4 to follower unit p o b 10 push C5 button 2 5 8 E 3 6 9 OK when display goes END 11 m a CD 4 7 10 EN 5 11 push button T Setup completes The status returns to the usual stop status 1 wa lt Operation procedure gt 7 gt 8 9 10 11 END Note 1 When setting the line address from the remote controller do not use Address 29 and 30 As they are addresses which cannot be set to the outdoor unit if they are set the check code E04 Indoor Outdoor communication circuit error is issued Note 2 When an address was manually set from the remote controller and the central control over the refrigerant lines is carried out perform the following setting for the Header unit of each line
20. I N 7 pos p O F31 Outdoor EEPROM error L Synchronized blinking Other indications not involving check code Light block Check code Cause of fault Operation Timer Ready XE x xx LIS 7D Synchronized blinking Test run in progress Operation Timer Ready Xt 5 TS L Alternate blinking Setting incompatibility automatic cooling heating setting for model incapable of it and heating setting for cooling only model 55 8 4 Check Codes Displayed on Remote Controller and SMMS i Outdoor Unit 7 Segment Display on I F Board and Locations to Be Checked For other types of outdoor units refer to their own service manuals Check code Location Main Outdoor 7 segment display of Description System status Check items locations remote detection controller Check code Sub code Remote Indoor remote Stop of Communication between Check remote controller controller controller corresponding indoor P C board and remote inter unit tie cable A B communication unit controller is disrupted Check for broken wire or error connector bad contact detected at Check indoor power remote supply E01 2 controller end Check for defect in indoor P C board Check remote controller address settings when two remote controllers are in use Check remote controller P C board Remote Re
21. 1 Detachment NOTE Recover refrigerant gas and then remove the refrigerant piping of the indoor unit R emove the indoor unit and carry out the work on the floor etc 1 Remove the drain pan Refer to No 3 Remove TC1 sensor TC2 sensor and sensor from the sensor holder Remove the relay connector of PMV lead wire in the electric parts and then pull off it from the bushing 2 Remove the check port cover A Refer to 6 3 Take off fixing screw and remove cover B 4 Take off the heat exchanger fixing screws 2 positions which fix the side plate Left and the heat exchanger 5 Take off screws which fix the main unit Front side and the heat exchanger to remove the heat exchanger 78 Remarks Check port cover B Check port cover fixing screws Side plate Left Heat exchanger fixing screws Main unit Front side Heat exchanger fixing screws Front side 10 P C BOARD EXCHANGE PROCEDURES 10 2 High Wall type In the non volatile memory Hereinafter said EEPROM IC10 installed on the indoor P C board before replacement the type and capacity code exclusive to the corresponding model have been stored at shipment from the factory and the important setup data such as refrigerant line indoor unit group address in AUTO MANUAL mode have been stored at installation Model type P C board model 4316V483 MMD AP BH2UL series MCC 1510 Replace the serv
22. 241 43109431 FLANGE ASSY 1 1 1 1 1 243 43104214 PLATE ASSY SHIELD 1 1 1 1 1 245 43166013 REMOTE CONTROLLER SX TAO1UE 1 1 1 1 1 246 43166014 REMOTE CONTROLLER SXTBO1UE 1 1 1 1 1 247 43166015 REMOTE CONTROLLER SXJAO1UE 1 1 1 1 1 248 43166016 REMOTE CONTROLLER WX TA0OLUES 1 1 1 1 1 249 43162074 COVER E PARTS 1 1 1 1 1 250 43119523 PLATE 1 1 1 1 1 88 Electric Parts MMD AP0214BH2UL APO244BH2UL AP0304BH2UL AP0364BH2UL AP0424B H2UL 407 _ 409 5 SAC OLZNO 9 408 I S N61 T10 OPTION n 406 ee 405 404 x w Part No Description Model Name MMD AP 9 0214BH2UL 0244BH2UL 0304B H2UL 0364B H2UL 0424BH2UL 401 43050425 Sensor Ass y Service TC F6 2 2 2 2 2 402 43F50426 Sensor Service TA 1 1 1 1 1 403 43150320 Sensor Ass y Service 6 1 1 1 1 1 404 43160574 Terminal 4P 1 1 1
23. I F E28 E28 Detected outdoor unit No VF Outdoor follower unit error All stop Outdoor header unit receives error code from outdoor follower unit Check check code displayed on outdoor follower unit Convenient functions If SW04 is pressed and held for at least 1 second while E28 is displayed on the 7 segmentdisplay of outdoor header unit the fan of the outdoor unit that has been shut down due to an error comes on If SW04 SW05 are pressed simultaneously the fans of normal outdoor units come on To stop the fan or fans press SWO05 on its own 58 Check code Main remote controller Outdoor 7 segment display Check code Sub code Location of detection Description System status Error detection condition s Check items locations E31 E31 A3 IPDU Fan 2 3 iPDU Symbol O signifies site of IPDU error VF IPDU communication error All stop Communication is disrupted between IPDUs P C boards in inverter box Check wiring and connectors involved in communication between IPDU I F P C board for bad contact or broken wire Check for defect in outdoor P C board I F A3 IPDU or Fan IPDU Check for external noise F01 Indoor unit Indoor TCJ sensor error Stop of corresponding unit Sensor resistance is
24. In all cooling operation the air conditioner oper ates as described below based upon temp de tected by TC2 and TCJ sensors When M zone is detected for 30 minutes the thermostat is forcedly off In N zone the timer count is interrupted and held e When shifting to M zone again the timer count restarts and continues If LU zone is detected the timer is cleared and the operation returns to normal operation Reset conditions 1 TC1 gt 54 F 12 C and TC2 gt 54 F 12 C and TC gt 54 F 12 C 2 20 minutes passed after stop P2 41 F 5 C Q2 28 F 2 0 C Remarks TC1 Temperature of indoor heat exchanger sensor value When the power supply is turned on the Forced thermo becomes OFF if the temperature is less than this indicated temperature n a Model without TC2 TC2 is not judged Recovery control for cooling oil Refrigerant The indoor unit which is under STOP Thermo OFF status or which operates in FAN mode performs the following controls when it received the cooling oil Refrigerant recovery signal from the outdoor unit 1 Opens PMV ofthe indoor unit with a constant opening degree 2 Operates the drain pump for approx 1 minute during recovery control and after finish of control 18 e Recovery operation is usually performed every 2 hours 5 minuts Outline of specifications Remarks Recovery control The i
25. L yun JaMOq 10 Jouoo uojoun suun z 0 dn e10uje1 ojduuis 24 7 1 4 Indoor Printed Circuit Board MCC 1510 TC2 sensor Microcomputer operation LED CN101 DC5V CN102 DC 5V D02 TC1 sensor Power supply CN100 DC5V CN67 HA T10 CN61 DC 12V Drain pump power supply CN309 AC 208 230V Option output CN60 DC 12V CHK CN71 DC 5V DISP a s I PW CN72 DC ORE sU Cm 24 2 g 2 SM i ys Flout input CN80 DC 12V Indoor Outdoor communication CN40 EXCT CN73 DC 5V Remote controller power LED D203 TA sensor CN104 DC 5V Remote controller CN41 DC 20V DC fan input output PMV outpu CN210 CN82 DC 12V Fan drive External error input CN32 DC 12V Drain pump drive CN213 DC 5V CN33 DC 20V 25 Function External static pressure Fan output Optional output External error input CHK Operation check DISP Display mode EXCT Demand P C Board Optional Switch Connector Specifications Connector No Specifications No use Input No use Input DC12V Output Start stop input Remarks Turn the switch to ON when using the external static pressure function SW01 lt Bit 2 OFF ON OFF ON SW02 lt Bit 2 g
26. ON OFF button to stop the operation Display on the display part is same to that in Procedure 1 Push TEST button to clear the TEST mode TEST display in the display part disappears and status becomes the normal stop status Note The test run returns to the normal operation after 60 minutes 227 lt in case of wireless remote controller TCB AX21UL Procedure Description Turn on power of the air conditioner The operation is not accepted for 5 minutes when power has been turned on at first time after installation and 1 minute when power has been turned on atthe next time and after After the specified time has passed perform a test operation Push Start Stop button and change the operation mode to COOL or HEAT with Mode button Then change the fan speed to High using Fan button Test cooling operation Test heating operation Set temperature to 64 F 18 C using Set temperature to 86 F 30 C using Temperature set button Temperature set button After checking the receiving sound Pi After checking the receiving sound Pi immediately push Temperature set button to immediately push Temperature set button to set to 66 F 19 C set to 84 F 29 C After checking the receiving sound Pi After checking the receiving sound Pi immediately push Temperature set button to immediately push Temperature set button to set to 64 F 18 C se
27. _ Indoor group address not Address setting has not been performed for one or is L08 e SM set more indoor units also detected at indoor end x Outdoor unit capacity has not been set after P C L10 L10 SIM Outdoor capacity not set board replacement Outdoor model Old model outdoor unit prior to 3 series has been Mr e SIM incompatibility error connected Cooling heating selection Cooling heating cycle error resulting from piping 18 E iM unit error error is detected Too many outdoor units More than four outdoor units have been Len E 5 connected connected 49 Check code Display of receiving unit Outdoor 7 segment display TCC LINK central control Indicator light block Typical fault site Description of error ormainremote Sub code controller Operation Timer Roady Flash display VS A3 IPDU Fan A3 IPDU Fan 1 2 3 PDU 4 2 3 IPDU O O n There are insufficient number of IPDUs P C L29 ol o L29 SIM Error in number of IPDUs boards in inverter box ojoj O ojoj O Circle O Faulty IPDU indoor extemal eror input Indoor unit has been shut down for external error 130 Detected indoor unit No L30 Q SIM interlock P input in one refrigerant line detected by indoor
28. e ALT 4 way valve reversing Abnormality in refrigerating cycle is detected error during heating operation Z Activation of high pressure High pressure Pd sensor detects high pressure ias 9 e AT protection that exceeds standard value 50 MG CTT Magnet contactor Errors detected by IPDU featuring in SMMS i standard outdoor unit typical examples Check code Display of receiving unit Outdoor 7 segment display TCC LINK central control Indicator light block Typical fault site Description of error ormainremote Sub code controller Operation Timer Ready Flash display 01 Compressor 1 Error in temperature 13 102 2 F13 Q ALT sensor built into indoor SOR built fl indoor IGBT TH 03 Compressor 3 IGBT TH as been open short circuited 01 Compressor 1 A T H01 02 Compressor 2 H01 e e Compressor breakdown Inverter current Idc detection circuit detects 03 Compressor 3 overcurrent 01 Compressor 1 H02 02 Compressor 2 H02 Compressor error lockup Compressor lockup is detected 03 Compressor 3 01 Compressor 1 Current detection circuit Abnormal current is detected while inverter E a e e error compressor is turned off compre Sor Activation of high pressure P04 02 Compressor 2 P04 SW High pressure SW
29. room where the density limit is exceeded the volume of the next smallest room becomes the object Refrigerant piping Outdoor unit Indoor unit Medium room Large room Mechanical ventilation device Gas leak detector NOTE 3 The minimum indoor floor area compared with the amount of refrigerant is roughly as follows When the ceiling is 8 9 ft 2 7m high 48 Range below the density limit of 42 0 019 Ibs ft 0 3 kg m countermeasures not 36 Fneeded 30 Q N 24 Range above the density 18 limit of 0 019 Ibs f 0 3 kg m countermeasures needed Min indoor floor area 22 44 66 Total amount of refrigerant TOSHIBA CARRIER CORPORATION 23 17 TAKANAWA CHOME MINATOKU TOKYO 108 8580 JAPAN Copyright 1999 to 2011 TOSHIBA CARRIER CORPORATION ALL Rights Reserved
30. the identical refrigerant piping and the indoor unit No are displayed one after the other and then its fan and louver are on 1 Push the timer time button 7 e simultaneously for 4 seconds or more First line 1 and CODE No AZ Address Change are displayed Select outdoor unit 2 select line address using e o Cr button 4 3 Determine the selected line address using c button The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is dis played and the fan and the louver are on 4 4 Every pushing button button at left side the indoor unit No in the identical piping is displayed one after ti the other Only fan and louver of the selected indoor unit start operation UNIT LOUVER To select the other line address D Push C5 button and the operation returns to Procedure 2 The indoor address of other line can be continuously checked 4 6 Push c button and then the procedure finishes VES eon mmnm LEN LIO uu ds 4 TEMP DON OFF 0C 3 TIME SAVE VENT FILTER SWING FIX UNIT LOUVER Operation procedure 1 2 3 4 5 6 END TIMER SET S C 38 B How to change an indoor unit address by using a wired remote control Use this method to change the address of indoor units one to one or group control tha
31. unit Outdoor discharge TD1 Outdoor discharge temperature sensor TD1 has diss ds e temperature error detected abnormally high temperature 00 Open phase detected Open phase power failure Open phase is detected when power is turned on P05 01 Compressor 1 P05 ALT Inverter DC voltage Vdc Inverter DC voltage is too high overvoltage or too 02 Compressor 2 error low undervoltage 03 Compressor 3 MG CTT error 01 Compressor 1 w rr 02 Compressor 2 P07 e ALT Heat sink overheating Temperature sensor built into IGBT TH detects error overheating 03 Compressor 3 Indoor unit has been shutdown in one refrigerant P10 Indoor unit No detected P10 e Indoor unit overflow line due to detection of overflow detected by indoor unit _ Outdoor liquid backflow State of refrigerant cycle circuit indicates liquid FS detection error backflow operation 01 TS condition Outdoor suction temperature sensor TS1 detects P15 un P15 Gas leak detection sustained and repeated high temperatures that 02 TD condition exceed standard value _ Outdoor discharge TD2 Outdoor discharge temperature sensor TD2 xd xd temperature error detects abnormally high temperature _ Outdoor discharge Outdoor discharge temperature sensor dis Pig 9 e e temperature error detects abnormally high temperature P19 Outdoor unit No detected P19
32. 02 TD condition VF Gas leak detection TD condition All stop Protective shutdown due to sustained discharge temperature TD1 TD2 or at or above 226 F 108 C for at least 10 minutes is repeated four times or more Check for insufficiency in refrigerant quantity Check PMVs PMV 1 2 for clogging Check resistance characteristics of TD1 TD2 and TD3 sensors Check indoor filter for clogging Check piping for clogging Check SV4 circuit for leakage or coil installation error P17 P17 VF Discharge temperature TD2 error All stop Discharge temperature TD2 exceeds 239 F 115 C Check outdoor service valves gas side liquid side to confirm full opening Check outdoor PMVs PMV1 2 4 for clogging Check resistance characteristics of TD2 sensor Check for defect in 4 way valve Check SV4 circuit for leakage Check SV4 circuit for wiring or installation error involving SV41 SV42 and SV43 P18 P18 VF Discharge temperature TD3 error All stop Discharge temperature TD3 exceeds 239 F 115 C Check outdoor service valves gas side liquid side to confirm full opening Check outdoor PMVs PMV1 2 4 for clogging Check resistance characteristics of TD3 sensor Check for defect in 4 way valve Check SV43 circuit for leakage Check SV4 circuit for wiring or installation error involving SV41 SV42 and SV43
33. 1 1 405 43160626 Terminal Block 2P 20A 1 1 1 1 1 406 43158193 Reactor 1 1 1 1 1 407 43054107 Relay LY 1f 1 1 1 1 1 408 4316V483 P C Board Ass y MCC 1510 1 1 1 1 1 409 4316V484 P C Board Ass y MCC 1431 1 1 1 1 1 89 MMD AP0484B H2UL 90 Location No 43120239 Description FAN MULTI BLADE Model Name MMD AP0484B H2UL 99 4314J 469 REFRIGERATION CYCLE ASSY 43196012 BUSHING 43079249 BAND HOSE 43125131 BEARING SHAFT 43125162 COUPLING 43070146 HOSE DRAIN 43177019 PUMP DRAIN ADP 1406 43151294 SWITCH FLOAT FS 0218 102 43125163 SHAFT 43172221 PAN ASSY DRAIN 43171080 SOCKET PAN DRAIN 43158138 LABEL WARNING 43F19904 HOLDER SENSOR TS 43F 47609 BONNET 43107215 HOLDER SENSOR 43194029 BONNET 43179110 PLUG 43179126 RUBBER PUMP DRAIN 43170233 HOSE DRAIN 4312C092 MOTOR FAN MF 240U150 2A 43146743 MOTOR PMV EFM MD12TF 1 43146723 BODY PMV 43149355 NUT FLARE 3 8 IN 43049776 SOCKET 43149352 NUT FLARE 5 8 IN 43149354 SOCKET 43104208 PLATE SHIELD UNDER 43104211 PLATE SHIELD UNDER 43109431 FLANGE ASSY 43104214 PLATE ASSY SHIELD
34. R22 are necessary as the general tools 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 7 2 Torque wrench 8 3 Pipe cutter 9 4 Reamer 10 Screwdriver Spanner or Monkey wrench Hole core drill Hexagon wrench Opposite side 4mm Tape measure Metal saw 5 Pipe bender 11 6 Level vial 12 Also prepare the following equipments for other installation method and run check 1 Clamp meter 3 Insulation resistance tester Megger 2 Thermometer 4 Electroscope 1 SPECIFICATIONS 1 1 Medium Static Ducted Type MMD AP0074B H2UL AP0094BH2UL APO124BH2UL AP0154BH2UL APO184BH2UL Model name MMD AP0074BH2UL APOO94BH2UL APO124BH2UL APO154BH2UL APO184BH2UL Cooling Capacity kBtu h 7 5 9 5 12 15 4 18 Heating Capacity kBtu h 8 5 20 Electrical Power supply 230 V 208 230V 1phase 60Hz characteristics Power consumption kW 0 041 0 041 0 049 0 091 0 091 Appearance Zinc hot dipping steel plate Height In 12 6 Unit Width In 21 7 39 4 Dimension Depth In 31 5 Height In 14 6 Packing Width In 30 2 47 9 Depth In 38 4 Total Weight Unit Ib 64 93 Packed unit Ib 73 104 Heat exchanger Finned tube Fan unit Fan Centrifugal fan eee cfm 312 282 165 371 335 224 635 556 382 High Mid Low Motor output 150 150 150 150 150 External static Factory setting In WG 0 26 0 26 0 24 0 25 0 25 Connecting Gas side In 3 8 3 8 3 8 1
35. Temp sensor Connector CN104 2P White 1 Detects indoor suction temperature Connector CN100 3P Brown 1 Controls PMV super heat in cooling operation Connector CN 101 2P Blue 1 Controls PMV under cool in heating operation Connector CN 102 2P Yellow 1 Controls PMV super heat in cooling operation T4 6 CONTROL OUTLINE Outline of specifications Remarks When power 1 Distinction of outdoor unit supply is reset When the power supply is reset the outdoors are distinguished and the control is selected according to the distinguished result Setting of indoor fan speed and existence of air direction adjustment Based on EEPROM data select setting of the indoor fan Air speed rpm Speed and the existence of air direction adjustment Air direction adjustment If resetting the power supply during occurrence of a trouble the check code is once cleared After ON OFF button of the remote controller was pushed and the operation was resumed if the abnormal status continues the check code is again displayed on the remote controller Operation Based on the operation mode selecting command from the mode selection remote controller the operation mode is selected Remote controller command Control outline Air conditioner stops Fan operation Cooling operation Heating operation Room temp 1 Adjustment range Remote controller setup temperature F C
36. VF Indoor outdoor All stop Signal cannot be transmitted Check outdoor termination communication from outdoor to indoor units resistance setting SW30 E07 circuit error for 30 seconds continuously Bit 2 T detected at Check connection of outdoor end indoor outdoor communication circuit 56 Check code n Location i Main Outdoor 7 segment display of Description System status Error detection Check items locations remole detection condition s controller Check code Sub code Duplicated Indoor Duplicated All stop More than one indoor unit is Check indoor addresses indoor address unit indoor address assigned same address Check for any change E08 E08 VF made to remote controller connection group individual since indoor address setting Remote Duplicated Stop of In two remote controller Check remote controller controller master remote corresponding configuration including settings controller unit wireless both controllers are Check remote controller E09 _ _ set up as master Header P C boards indoor unit is shut down with alarm while follower indoor units continue operating Indoor Indoor inter Stop of Communication cannot be Check for defect in indoor E10 _ unit MCU corresponding established maintained upon P C board communication unit turning on of power or during error communication 01 VF Automatic All stop Indoor automatic address Perform automatic address Indoor
37. device devices VF control interface TCC LINK Group control Continued Error occurs in follower unit Check check code of unit Differs according to nature of follower unit operation under group control that has generated alarm alarm causing error error P30 is displayed on central P30 control remote controller Duplicated Continued There is duplication in central Check address settings L20 displayed central control operation control addresses address 70 8 5 Sensor Characteristics Indoor Unit B Temperature sensor characteristics 30 Temperature Resistance Resistance ka 50 68 86 104 122 140 10 20 30 40 50 60 140 60 24 Temperature F C Temperature Resistance Indoor TC1 sensor mue ko 20 5 1 74 1 2 200 EE ko 25 4 55 F 10 C or above 4 20 15 3 5 150 32 0 i Resistance 1 ko 55 F 10 C or below 100 50 0 22 4 14 32 50 68 86 104 122 140 158 176 194 212 30 20 10 0 10 20 30 40 50 60 70 80 90 100 Temperature F Indoor TC2 and TCJ sensors Temperature Resistance 200 20 4 20 115 2 5 15 84 2 14 10 62 3 150 15 23 5 46 6 b dic ua 32 0 352 55 F 10 C 55 F 10 C or below or below 100 10 50 5 0 22 4 14 32 50 68 86 104 122 140 158 176 194 212 30 20 10 0 10 20 30 4
38. faulty operation in check valve Checkfor refrigerant entrapment inside compressor No temperature Check for disconnection of TK5 sensor change is detected Check resistance characteristics of by TK5 despite TK5 sensor compressor having Check for connection error involving been started TK1 TK2 TK3 TK4 and TK5 sensors Check for faulty operation in SV3E valve Check for clogging in oil equalizing circuit capillary and faulty operation in check valve Check for refrigerant entrapment inside compressor VF TD3 sensor All stop Air discharge Check installation of TD3 sensor miswiring temperature TD3 Check connection of TD3 sensor incomplete does not increase connector and wiring H25 H25 insertion despite compressor Check resistance characteristics of 3 being in operation TD3 sensor Check for defect in outdoor P C board I F 63 Check code Location Outdoor 7 segment display of Description System status Error detection Check items locations remote detection condition s controller Check code Sub code Indoor Duplicated Stop of There is more than one Check indoor addresses unit indoor header corresponding header unit in group Check for any change unit unit made to remote controller 103 connection group individual since indoor address setting VF Duplicated All stop There is duplication
39. in indoor board VF TS1 sensor All stop Sensor resistance is infinity Check connection of TS1 error or zero open short circuit sensor connector Check resistance Pie characteristics of 51 sensor Check for defect in outdoor P C board I F 01 Compressor1 IPDU TH sensor All stop Sensor resistance is infinity Defect in IGBT built in side error or zero open short circuit temperature sensor F13 F13 02 Compressor 2 Replace A3 IPDU P C side board 03 Compressor 3 side VF Outdoor All stop During compressor Check installation of TE1 and temperature operation in HEAT mode TL sensors sensor wiring TE1 continuously provides Check resistance F15 F15 error TE1 temperature reading characteristics of TE1 and TL TL higher than indicated by TL sensors by atleast specified margin Check for outdoor P C board for 3 minutes or more I F error VF Outdoor All stop Readings of high pressure Check connection of high pressure Pd sensor and low pressure Pd sensor connector sensor wiring pressure Ps sensor are Check connection of low error Pd Ps switched pressure Ps sensor connector Output voltages of both Check for defect in pressure F16 F16 sensors are zero sensors Pd and Ps Check for error in outdoor P C board I F Check for deficiency in compressive output of compressor I F TD3 sensor All stop Sensor resistance is infinity Check connection of error or ze
40. in line Check line addresses L04 L04 outdoor line address setting for outdoor address units belonging to different refrigerant piping systems VF Duplicated All stop More than one indoor unit Check display on priority priority indoor has been set up as priority indoor unit unit as indoor unit 105 r displayed on priority indoor unit No of priority Duplicated All stop More than one indoor unit Check displays on priority indoor units priority indoor have been set up as priority indoor unit and outdoor unit as indoor unit unit L06 L06 displayed on indoor unit other than priority indoor unit Indoor Connection of Stop of There is at least one stand Check indoor addresses unit group control corresponding alone indoor unit to which 107 cable to stand unit group control cable is alone indoor connected unit Indoor Indoor group Stop of Address setting has not been Check indoor addresses unit addresses not corresponding performed for indoor units Note LOB Los _ set unit This code is displayed when power is turned on for the first time after installation Indoor Indoor capacity Stop of Capacity setting has notbeen Set indoor capacity DN L09 _ _ unit not set corresponding performed for indoor unit 11 unit VF Outdoor All stop Jumper wire provided on P C Check model setting of P C L10 L10 capacity not set board for servicing I F P C board for servicing outdoor board has not b
41. is activated 03 Compressor 3 P07 Compressor P07 ALT Heat sink overheating Temperature sensor built into IGBT TH detects 03 Compiessor 3 9 e error overheating 0 IGBT circuit 1 Position detection circuit error 3 Motor lockup error 4 Motor current detection C TH sensor error P22 D TH sensor error P22 Outdoor fan IPDU error Outdoor fan IPDU detects error E Inverter DC voltage error outdoor fan Note Although letters 0 to F appear at locations indicated by please ignore them 01 Compressor 1 Short circuit protection for compressor motor P26 02 Compressor 2 P26 pied veli driver circuit components is activated momentary 03 Compressor 3 P overcurrent P29 p P29 ALT Compressor position Compressor motor position detection error is e 9 detection circuit error detected 03 Compressor 3 Note The above check codes are examples only and different check codes may be displayed depending on the outdoor unit configuration e g a Super heat recovery multi system For details see the service manual for the outdoor unit 51 8 3 Troubleshooting Based on Information Displayed on Remote Controller Using main remote controller RBC AMT32UL 1 Checking and testing When a fault occurs to an air conditioner a check code and indoor unit No are displayed on the display window of the remote controller X Check codes are only displayed while the ai
42. outdoor communication line for wiring error Check for faulty operation of check valve in discharge pipe convergent section Check gas balancing SV4 valve circuit Check SV5 valve circuit Check for refrigerant overcharging 68 Check code Location Outdoor 7 segment display m of Description System status Error detection Check items locations remote detection condition s controller bird Sub code 0 IGBT circuit IPDU Outdoor fan All stop Sub code 0 Check fan motor 1 Position IPDU error Fan IPDU over current Check for defect in fan detection circuit protection circuit IPDU P C board error Flow of current equal to or 3 Motor lockup greater than the specified error value is detected during 4 Motor current startup of the fan pc All stop Sub code 1 Check fan motor temperature Fan IPDU position detection Check connection of fan error circuit motor connector D TH sensor Position detection is not Check for defect in fan Error going on normally IPDU P C board E Inverter DC All stop Sub code 3 Check fan motor voltage error Gusty wind an obstruction Check for defect in fan outdoor fan or another external factor IPDU P C board Note Speed estimation is not Although going on normally letters 0 to F appear at All stop Sub code 4 Check fan motor P22 P22 locations 4A Fan IPDU over current Check connection o
43. temperature TO x1 8 1A PMV1 2 opening 1 pls B 0500 500pulse 1 2 PMV4 opening x1 pls 1C 2C Compressor 1 current 11 x10 A 1D 2D Compressor 2 current I2 x10 A 0135 13 5 1E 2E Compressor 3 current I3 x10 A 1F 2F Outdoor fan current IFan x10 A CODE No in T Data name Display format Unit Remote controller display example 50 60 Compressor 1 revolutions x10 rps 51 61 Compressor 2 revolutions x10 rps 0642 64 2rps 52 62 Compressor 3 revolutions x10 rps i 53 63 Outdoor fan mode x1 mode 0058 58 mode P 54 64 Compressor IPDU 1 heat sink temperature x1 F 55 65 Compressor IPDU 2 heat sink temperature x1 T 0075 75 F 24 C 56 66 Compressor IPDU 3 heat sink temperature x1 F E 57 67 Outdoor fan IPDU heat sink temperature x1 F i 5 0 Normal 0010 Heating recovery controlled 5 58 Heating cooling recovery controlled 1 Recovery controlled 0001 Cooling recovery controlled 8 59 Pressure release 5 0010 Pressure release controlled Discharge temperature release 5 0 Normal 0001 Discharge temperature release controlled 1 Release controlled 0100 U2 outdoor unit release controlled 5B Acie 5 0010 U3 outdoor unit release controlled 0001 U4 outdoor unit release controlled 5F 6F Outdoor unit capacity x10 ton 0080 8ton 1 Only a part of indoor unit types is installed with the discharge temperature sensor This temperature is not displayed for other types 2 When
44. the units are connected to a group data of the header indoor unit only can be displayed 3 The first digit of an CODE No indicates the outdoor unit number 4 The upper digit of an CODE No 4 indicates the outdoor unit number 1 5x U1 outdoor unit Header unit 2 U2 outdoor unit Follower unit 1 5 Only the CODE No 5 of U1 outdoor unit Header unit is displayed 43 B Changing of settings for Celsius display e Push gt v button if the unit stops Procedure 1 Push simultaneously C5 buttons for 4 seconds or more After a while the display part flashes as shown right Check the displayed CODE No 15 7 When the CODE No is other than 7 push e button to erase the display and repeat procedure from the first step After pushing e button operation of the remote controller is not accepted for approx 1 minute For a group control No of the firstly displayed indoor unit becomes the header unit FILTER RESET TEST SWING FIX UNIT LOUVER OOA Procedure 2 1 UNIT LOUVER H H Every pushing button button at left side the indoor unit No in the group control ruri is displayed in order Select the indoor unit of which setup is changed In this time the position of the indoor unit of which setup is changed be confirmed because fan and louver of the selected indoor unit operate CODE No SETDATA SETTING Procedure 3 ee el R
45. thermo volume is exchanged the air speed changes When cooling operation has started selecta downward slope for the air speed that is the high position If the temperature is just on the difference bound ary the air speed does not change The Air speed selection Continued Outline of specifications HEAT Ta F C 0 9 1 8 0 5 1 0 0 Tsh 40 9 41 8 40 5 41 0 41 8 43 6 41 0 42 0 42 7 45 4 41 5 43 0 43 6 7 2 42 0 44 0 lt gt Indicate automatic heating Body thermostat works Remote controller thermostat works Value in the parentheses indicates one when thermostat of the remote controller works Value without parentheses indicates one when thermostat of the body works If the air speed has been changed once it is not changed for 1 minute However when the air speed exchanged the air speed changes When heating operation has started select an upward slope for the air speed that is the high position If the temperature is just on the difference boundary the air speed does not change e In Tc2 140 F 60 C the air speed increases by 1 step Remarks Tc2 Indoor heat exchanger sensor temperature Prevention of cold air discharge In heating operation the higher temperature of TC2 sensor and sensor is compared with temperature of TC1 sensor and then the lower temperature is used to set the upper limit o
46. unit IPDU Intelligent Power Drive Unit Inverter P C board O Lighting Flashing amp Goes off ALT Flashing is alternately when there are two flashing LED SIM Simultaneous flashing when there are two flashing LED Check code Display of receiving unit Outdoor 7 segment display Indicator light block TCC LINK central Typical fault site Description of error control diea note Sub code Operation Timer Ready Flash 44 Communication from remote controller or network E03 amp ndoor remote controller periodic adaptor has been lost so has central control communication error communication ndoor outdoor periodic R E04 e e communication eror Signals are not being received from outdoor unit E08 E08 Duplicated indoor address Q Duplicated indoor address Indoor unit detects address identical to its own E10 _ ndoor inter MCU communication MCU communication between main controller and e e error motor microcontroller is faulty Error in periodic communication Don ir Periodic communication between indoor header E18 x o e e between indoor header and and follower units cannot be maintained ollower unit _ _ ndoor heat exchanger Heat exchanger temperature sensor TCJ has Fot e T temperature sensor TCJ error been open short circuited ndoor heat exchanger Heat exchanger temperature s
47. 0 50 60 70 80 90 100 Temperature F ze 9 DETACHMENTS N WARNING NCAUTION Be sure to turn off the power supply and the Be sure to put on the gloves at disassembling breaker and then start a work work otherwise an injury will be caused by a part etc Part name Procedure Remarks Electric parts 1 Detachment Screws For fixing the box 1 Take off screws of the electric parts parts box cover to remove the electric parts box cover Close the claw of the electric parts box cover to notch side of the electric parts box once and then pull out the claw Remove power supply wire indoor Claw of electric parts box cover outdoor connecting wire remote controller wires from each terminal blocks Remove connectors of the fan motor TC1 TC2 TCJ and TA sensor lead wires from the control P C board Remove relay connectors of the drain pump float SW and PMV lead wires PMV relay connector NOTE Float SW relay connector TA sensor TC1 sensor First unlock the housing and then remove the connectors CN210 Fan motor CN100 TC1 sensor CN101 TC2 sensor CN102 TCJ sensor CN104 TA Room temperature sensor Drain pum TC2 sensor relay connector Fan motor TCJ sensor Screw For fixing Screws For fixing conduit fixed plate electric parts box 4 Take off screw of the conduit fixed plate and then remove the conduit fixing p
48. 1 1 1 1 1 218 43F19904 HOLDER SENSOR TS 2 2 2 2 2 219 43F47609 BONNE 3 8 IN 1 1 1 220 43147195 BONNE 1 2 IN 1 1 221 43107215 HOLDER SENSOR 1 1 1 1 1 222 43F49697 BONNE 1 4 IN 1 1 1 1 1 223 43179110 PLUG 1 1 1 1 1 224 43179126 RUBBER PUMP DRAIN 3 3 3 3 3 225 43170233 HOSE DRAIN 1 1 1 1 1 226 4312092 MOTOR MF 240U150 2A 1 1 1 227 4312091 MOTOR FAN MF 240U 150 1A 1 228 43146743 MOTOR PMV EFM MD12TF 1 1 1 1 1 229 43146713 VALVE PMV 1 1 1 230 43146714 VALVE PMV 1 1 231 43F47685 NUT FLARE 1 4 IN 1 1 1 1 1 232 43149351 SOCKE 1 4 IN 1 1 1 1 1 233 4347686 NUT FLARE 3 8 IN 1 1 1 234 43047688 NUT FLARE 1 2 IN 1 1 235 43049776 SOCKE 3 8 IN 1 1 1 236 43149353 SOCKET 1 2 IN 1 1 237 43104210 PLATE SHIELD UNDER 1 1 1 238 43104209 PLATE SHIELD UNDER 1 1 239 43104213 PLATE SHIELD UNDER 1 1 1 240 43104212 PLATE SHIELD UNDER 1 1 241 43109433 FLANGE ASSY 1 1 1 242 43109432 FLANGE ASSY 1 1 243 43104215 PLATE ASSY SHIELD 1 1 1 244 43104214 PLATE ASSY SHIELD 1 1 245 43166013 REMOTE CONTROLLER X TAO1UE 1 1 1 1 1 246 43166014 REMOTE CONTROLLER SX TBO1UE 1 1 1 1 1 247 43166015 REMOTE CONTROLLER SXUAO1UE 1 1 1 1 1 248 43166016 REMOTECONTROLLER WX IAOlUES 1 1 1 1 1 249 43162074 COVER E PARTS 1 1 1 1 1 250 43119523 PLATE 1 1 1 1 1 85 Electric Parts MMD AP0074BH2UL AP0094BH2UL APO124BH2UL APO154BH2UL APO184BH2U
49. 101 lt gt c 0c 9 et N 6ST E 0 opis 3 L ofueupsip sv x 1 1 PON apis pinbr1 6 8 E Hod 6un uuo gt edid seo 6 ST 8 G 109 bun2euuo paun2oud 2 edid 10 epis c 6t 6 T th T S LYT episjno Huey 9 ose og T VBE U ST 96 gg9 T SZ 6S 7 2 00 9 2 LS 2 008 S TE uolsu uulp YUN EG uorsuauup YUN p T T elq Jeux eqm epuoju pod bun euuoo edid Yd L 3 WIRING DIAGRAM pieoq O d 10 eu sereoripur 7 v punoJB uonoejoud DJeoq u J0j2euuoo aui Se1eolpul leuiuJe1 uonoeuuoo seyeoipul o 4oo q euu se1eorpul y eyeoipui p
50. 2 1 2 pipe Liquid side In 1 4 1 4 1 4 1 4 1 4 Drain port nominal dia In VP25 Polyvinyl chloride tube External Dia 1 1 4 Internal Dia 1 Sound pressure level High Mid Low 2 dB A 34 30 5 27 5 34 30 5 27 5 34 5 32 31 37 5 35 5 29 37 5 35 5 29 Option parts Fan guard TCB IGO71BUL TCB IG151BUL MMD AP0214BH2UL AP0244B H2UL AP0304BH2UL AP0364BH2UL AP0424BH2UL AP0484BH2UL Model name MMD APO214BH2UL APO244BH2UL APO304BH2UL APO364BH2UL APO424BH2UL APO484BH2UL Cooling Capacity kBtu h 21 24 30 36 42 48 Heating Capacity 475 54 Electrical Power supply 230 V 208 230V 1phase 60Hz characteristics Power consumption kW 0 091 0 091 0 091 0 106 0 142 0 142 Appearance Zinc hot dipping steel plate Height In 12 6 Unit Width In 53 2 Dimension Depth In 31 5 Height In 14 6 Packing Width In 61 7 Depth In 38 4 Total Weight Unit Ib 119 Packed unit Ib 135 Heat exchanger Finned tube Fan unit Fan Centrifugal fan Standard air fow 788 694 424 1088 953 706 1324 1165 871 High Mid Low Motor output 150 150 150 150 External static Factory setting 0 21 0 25 0 25 0 25 pressure 044 044 Connecting Gas side In 5 8 5 8 5 8 5 8 5 8 5 8 pipe Liquid side In 3 8 3 8 3 8 3 8 3 8 3 8 Drain port nominal dia In VP25 Polyvinyl chloride tube External Dia 1 1 4 Internal Dia 1 Sound pressure level High Mid Low 2 dB A 41 38 5 36 41 38 5 36 Option par
51. Bseypsip m lt 2 002 9 22 youd y0q g p 91 0001 66 uoisueuup 29 2 2 008 Le 1 lt 8501 OF Zt Goud oq gt p L eq aqn IKuA lod SZdA pod Buno uuoo edid 10 MMD AP0214BH2UL MMD AP0244BH2UL MMD AP0304B H2UL MMD AP0364BH2UL MMD AP0424BH2UL MMD AP0484BH2UL epis eeu av Geksc 02 92 n Sos Z er2 9 6 B Gs 3015 JAY al ug pjos Ajayeiedas e ains exei Jepun exer 104 Ajddns Jamod 104 loH z z2 8 L Buum pue BAM 104 92 1 apis exeut v aq JOUUPD Aay asmuo ug y 104 yod Huluado e 38S YM pue ain2o4g egy ue YM paddinba jou s UN eu L aq 3ouueo un siwu unO 340d Jay proe edid up adid yue ya un 6urjnd uSuM F lt eu 104 pauinbas e eds u Og 0T S 0t Jenju eu 10 pauinbai azed s ospxosp L LL ET lv Hod sp uo
52. C No 1 Using temp setup cz buttons specify CODE No L77 CODE No 77 Fahrenheit display 77 777 2 Using mer y cas buttons change the line address from zr to LILILILI 3 Push C button In this time the setup finishes when the display changes from flashing to lighting Procedure 4 After check of the changed contents push e button Setup is determined When pushing e button the display disappears and the status becomes the usual stop status When pushing e button the operation from the remote controller is not accepted for approx 1 minute f the operation from the remote controller is not accepted even 1 minute or more passed after pushing e button itis considered that the address setup is incorrect In this case the automatic address must be again set up When changing the settings from Celsius to Fahrenheit indication follow to the reverse order of the above procedure 44 8 TROUBLESHOOTING 8 1 Overview 1 Before engaging in troubleshooting a Applicable models All Super Module Multi SMMS i models Indoor units MMD APOOO Outdoor units MMY MAPOOO4HT9UL b Tools and measuring devices required Screwdrivers Philips flat head spanners long nose pliers nipper pin to push reset switch etc Multimeter thermometer pressure gauge etc c Things to check prior to troubleshooting behaviors listed below are normal NO Behavior Poss
53. Check for clogging in oil equalizing 05 TK5 oil circuit capillary and faulty operation in circuit error check valve Checkfor refrigerant entrapment inside compressor No temperature Check for disconnection of TK2 sensor change is detected Check resistance characteristics of by TK2 despite TK2 sensor compressor 2 having Check for connection error involving been started TK1 TK2 TK3 TK4 and TK5 sensors Check for faulty operation in SV3E or SV3F valve Check for clogging in oil equalizing circuit capillary and faulty operation in check valve Checkfor refrigerant entrapment inside compressor No temperature Check for disconnection of TK3 sensor change is detected Check resistance characteristics of by TK3 despite TK3 sensor compressor having Check for connection error involving been started TK1 TK2 TK3 TK4 and TK5 sensors Check for faulty operation in SV3E or PPS SV3F valve Check for clogging in oil equalizing circuit capillary and faulty operation in check valve Checkfor refrigerant entrapment inside compressor No temperature Check for disconnection of TK4 sensor change is detected Check resistance characteristics of by TK4 despite TK4 sensor compressor having Check for connection error involving been started TK1 TK2 TK3 TK4 and TK5 sensors Check for faulty operation in SV3E or SV3F valve Check for clogging in oil equalizing circuit capillary and
54. E VENT 7 Finish GE SET amp r Push button 6 All the indications of LCD go on 5 When you want to ip complete the setting 7 8 Push c button and then the procedure Operation procedure finishes 1 2 35455 6 7 8 END 40 B Function to clear error 1 Clearing method from remote controller How to clear error of outdoor unit In the unit of refrigerant line connected by indoor unit of the remote controller to be operated the error of the outdoor unit currently detected is cleared Error of the indoor unit is not cleared The service monitor function of the remote controller is utilized Method l Push buttons simultaneously for 4 seconds or more to change the mode to service monitor mode 2 Push button to set the item code to FF 3 The display of A part in the following figure is counted as 72 5 77 gt 7777 ZZ gt with 5 seconds interval When ZZZZ appear the error was cleared However counting from 275 is repeated the display screen TEST 4 When pushing button the status becomes normal DON OFF v o 2 FAN MODE CF SAVE VENT RESET TEST SWING FIX UNIT LOUVER amp 2 9 Operation procedure 1 2 3 4 Returns to normal status How to clear error of indoor unit The error of indoor unit is clear
55. IPDU P C board Indoor Other indoor Stop of There is error in other indoor Check indoor P C board P31 _ 47 unit error corresponding unit in group resulting in group follower unit detection of E07 L07 L03 unit error L08 69 Errors Detected by TCC LINK Central Control Device Check code Location Main Outdoor 7 segment display of Description System status Error detection Check items locations remote detection condition s controller Sub code TCC LINK TCC LINK Continued Central control device is Check for defect in central central control operation unable to transmit signal control device device Check for defect in central C05 transmission control communication error line Check termination resistance setting TCC LINK Continued Central control device is Check for defect in central central control operation unable to receive signal control device device reception Check for defect in central error control communication line Check termination resistance setting C06 Check power supply for devices at other end of central control communication line Check defect in P C boards of devices at other end of central control communication line General Blanket alarm Continued Error signal is input to control Check error input C12 _ purpose for general operation interface for general purpose device purpose
56. L 406 ae 407 409 lt OLZNO c S S CN50 408 OL YOLNO EUN OOLNOJLOLND 0LNO 161 T10 OPTION PNL CN80 O Fe B 401 403 405 404 Description Model Name MMD AP 9 0074B H2UL 0094BH2UL 0124BH2UL 0154B H2UL 0184BH2UL 401 43050425 Sensor Ass y Service TC F6 2 2 2 2 2 402 43F50426 Sensor Service TA 1 1 1 1 1 403 43150320 Sensor Ass y Service 6 1 1 1 1 1 404 43160574 Terminal 4P 1 1 1 1 1 405 43160626 Terminal Block 2P 20A 1 1 1 1 1 406 43158193 Reactor 1 1 1 1 1 407 43054107 Relay LY 1f 1 1 1 1 1 408 4316V483 P C Board Ass y MCC 1510 1 1 1 1 1 409 4316V484 P C Board Ass y MCC 1431 1 1 1 1 1 86 MMD AP0214BH2UL APO244BH2UL AP0304BH2UL AP0364BH2UL AP0424B H2UL
57. T LEAKAGE Check of Concentration Limit The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out its concentration will not exceed a set limit The refrigerant R410A which is used in the air conditioner is safe without the toxicity or combustibility of ammonia and is not restricted by laws to be imposed which protect the ozone layer However since it contains more than air it poses the risk of suffocation if its concentration should rise excessively Suffocation from leakage of R410A is almost non existent With the recent increase in the number of high concentration buildings however the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space individual control energy conservation by curtailing heat and carrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners If a single unit of the multi conditioner system is to be installed in a small room select a suitable model and installation procedure so that if the refrigerant accidentally leaks out its concentration does not reach the limit and in the event of an emergency measures can be made before injury can occur In a room where the concentration may exceed the limit create an opening with adjacent rooms or install mechanical venti
58. TOSHIBA Carrier SERVICE MANUAL AIR CONDITIONER MULTI TYPE Medium Static Ducted Type MMD APO074BH2UL MMD APO094BH2UL MMD APOI24BH2UL MMD APOI54BH2UL MMD APO1S4BH2UL MMD APO214BH2UL MMD APO244BH2UL MMD APO304BH2UL MMD APO364BH2UL MMD APO424BH2UL MMD APO4S4BH2UL FILE NO A11 011 PRINTED IN JAPAN Nov 2011 gt CONTENTS SAFETY CAUTION ua aaawassssassassawaakuskawqansawauqauuqqankuqawanawasuwayusanq 3 SPECIFICATIONS LL nnn nnne 8 2 CONSTRUCTION VIEWS EXTERNAL VIEWS 9 3 WIRING DIAGRAM 12 4 PARTS 13 5 REFRIGERATIN GCYCLE DIAGRAM nmm 14 CONTROL OUTLINE ua au ver DO OG an i nio inea 15 7 APPLIED CONTROL AND FUNCTION 22 8 TROUBLESHOOTING IIIa 45 9 DETACHMENTS u L u Z 72 10 BOARD EXCHANGE PROCEDURES 79 11 EXPLODED VIEWS AND PARTS LIST n 84 SAFETY CAUTION The important contents concerned to the safety are described on the product itself and on this Service Manual Please read this Service Manual after understanding the described items thoroughly in the following contents Indications Illustrated marks and keep them The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual Explanation of indications Indicatio
59. be changed from an arbitrary wired remote controller Enter in address check change mode and then change the address Procedure Carry outthis procedure during stop of system 1 Push the timer time button v e simultaneously for 4 seconds or more First line 1 and CODE No AZ Address Change are displayed UNIT LOUVER 2 Select line address using r SET 3 Push the O button The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is displayed and the fan and the louver are on First the current indoor address is displayed 1 Line address is not displayed 4 4a a button push up down the indoor address of the SET DATA The set data is changed to a new address button fcx SET Coo ko CS Ce TEST CL CES mc LOUVER Cancel of line selection I If the UNIT No is not call up here the outdoor unit in that line does not exist 5 Push button to determine the set data Push C5 button to select a line again in the Procedure 4 6 Every pushing e o button button at left side the indoor unit No in the identical piping is displayed one after the other Only fan and louver of the selected indoor unit start operation Repeat the Procedures to change all the indoor addresses so that they are not duplicated 8 CFD 4 AT 4 4 SAV
60. check code is issued Display of filter The filter sign is displayed with LC by sending FILTER goes on sign amp filter reset signal to the remote controller when the Separately set specified time 150H 2500H elapsed as a result of type integration of the operation time ofthe indoor fan TCB AX21UL The integrated timer is cleared when the filter reset is prepared signal is received from the remote controller In this time if the specified time elapsed the counted time is reset and the LC display is deleted T9 Outline of specifications Remarks Display of lt READY Displayed the remote controller READY gt display READY 1 When the following check codes are indicated No display for wireless HEAT READY e Open phase of power supply wiring P05 was detected type remote controller e There is an indoor unit that detected the indoor overflow P 10 There is an indoor unit that detected the interlock alarm L30 2 During Force Thermo OFF COOL DRY operation is unavailable because the other indoor unit operates with HEAT mode HEAT operation is unavailable because COOL priority SW11 bit1 of the Outdoor I F P C board is ON is set and the other indoor unit operates with COOL DRY mode 3 The above indoor units that cannot operate stay in Thermo OFF status 4 The indoor fan stops because the system performs Recovery operation for heating refrigerant Oil
61. connection of high pressure SW connector Check for defect in Pd pressure sensor Check outdoor service valves gas side liquid side to confirm full opening Check for defect in outdoor fan Check for defect in outdoor fan motor Check outdoor PMVs PMV1 2 for clogging Check indoor outdoor heat exchangers for clogging Check for short circuiting of outdoor suction discharge air flows Check SV2 circuit for clogging Check for defect in outdoor P C board I F Check for error in indoor fan system possible cause of air flow reduction Check opening status of indoor PMV Check indoor outdoor communication line for wiring error Check for faulty operation of check valve in discharge pipe convergent section Check gas balancing SV4 valve circuit Check SV5 valve circuit Check for refrigerant overcharging P05 00 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side P05 VF Detection of open phase phase sequence Inverter DC voltage Vdc error compressor MG CTT error All stop Open phase is detected when power is turned on Inverter DC voltage is too high overvoltage or too low undervoltage Check for defect in outdoor P C board I F P07 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side P07 IPDU VF Heat sink overheating error All stop Temperature sensor built in
62. control COOL DRY HEAT Wired type 64 F 18 C to 84 F 29 C 64 F 18 C to 84 C 29 C Wireless type 64 F 18 C 86 C to 30 C 61 F 16 C to 86 F 30 C 2 Using the Item code 06 the setup temperature in heating Shift of suction operation can be corrected temperature in heating Setup temp 0 F 3 6 F 7 2 F 10 8 F Except while sensor of Correction 0 C 42 C 44 C 46 C the remote controller is controlled Setting at shipment Code No 32 0001 15 Outline of specifications Remarks Automatic 1 Based on the difference between Ta and Ts the capacity control operation capacity is determined by the outdoor unit Ts Setup temp Ta Room temp Air speed 1 Operation with HH L or AUTO mode is carried HH gt H gt H gt L gt L gt UL selection out by the command from the remote controller 2 When the air speed mode AUTO is selected the air Speed varies by the difference between Ta and Ts COOL Ta F C 5 4 3 0 4 5 2 5 3 6 2 0 42 7 41 5 H lt HH gt 418 41 0 10 9 40 5 TSC 0 9 05 lt gt Indicate automatic cooling Controlling operation in case when thermo of Code No 32 remote controller works is same as a case when 0000 Body thermo thermo of the body works Main unit If the air speed has been changed once it is not 0001 Remote controller changed for 3 minutes However when the air
63. d the flap starts swinging if any Es 2 Using the set temperature 5 buttons the CODE No DN can be moved up and down one by one 2 3 First set the capacity of the indoor unit Setting the capacity writes the data at shipment from the factory in EEPROM 1 Using the set temperature ST buttons set the CODE No DN 2 TIMER SET 2 Using the timer time ora buttons set the capacity For example 0005 for MMD AP0124BH2UL Refer to the attached table 2 3 Push O button OK when the display goes on 4 4 Push A button to return to usual stop status 5 Approx 1 minute is required to start handling of the remote controller 4 Next write the contents that have been written at the installation such as the address data into EEPROM Repeatthe above procedure 1 5 Using the set temperature buttons set 7 to the CODE No DN 2 Setup of lighting time of filter sion 6 The contents of the displayed setup data in this time should be agreed with the contents in the previous memorandum 1 If data disagree change the displayed setup data to that in the previous memorandum by the timer time TIMER SET SET buttons and then push button OK when the display goes on 2 There is nothing to do when data agrees 7 Using the set temperature buttons change the CODE No DN As same as the above 6 the contents of the setup data and then change them to data contents
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65. door unit n a group control itis connected with cable to the indoor unit Control P C board and the CODE No is setto the connected indoor unit Itis used when the start operation from outside if unnecessary but the stop operation is necessary Using a card switch box card lock etc the forgotten OFF of the indoor unit can be protected When inserting a card start stop operation from the remote controller is allowed e When taking out a card the system stops if the indoor unit is operating and start stop operation from the remote controller is forbidden 1 Control items 1 Outside contact ON The start stop operation from the remote controller is allowed Status that card is inserted in the card switch box 2 Outside contact OFF If the indoor unitis operating it is stopped forcedly Start Stop prohibited to remote controller Status that card is taken out from the card switch box When the card switch box does not perform the above contact operation convert it using a relay with b contact 2 Operation Handle the wired remote controller switch in the following procedure Use the wired remote controller switch during stop of the system TEST Push concurrently 5 buttons for 4 seconds or more Using the temperature setup GO button specify the CODE ZZ Using the timer time button set 2 7 the setup data SET Push button Ul P UN F Push e button The stat
66. dress 0001 No 1 unit to 0064 No 64 unit 0099 Unfixed Group address 0000 Individual 0001 Header unit of group 0099 Unfixed 14 0002 Follower unit of group 28 Automatic restart of 0000 None 0001 Restart 0001 Restart power failure 2A Selection of option error 0000 Filter input 0001 Alarm input Option parts 0002 External interlock input CN213 0002 External interlock 2E HA terminal CN61 0000 Usual 0001 Leaving ON prevention control 0000 Usual select 0002 Fire alarm input HA terminal 31 Ventilating fan control 0000 Unavailable 0001 Available 0000 Unavailable 32 TA sensor selection 0000 Body TA sensor 0001 Remote controller sensor 0000 Body TA sensor 33 Temperature unit select 0000 C 0001 F at factory shipment 0001 F Description At shipment SET DATA 0 008psi 55Pa 0 013psi 90Pa 0 017psi 120Pa External static pressure High static pressure 1 High static pressure 3 Factory default SWO SWo2 SWO1 Sw02 Swot SWo2 a OFF OFFOFF OFF ONOFFOFF OFF OFF OFF ON DIP Switch position ON B B B MI OFF 7 2 1 0 006psi 40Pa Low static pressure SW01 SWO02 OFF ON OFF ON Timer setting 0000 Available can be performed wired remote controller 0001 Unavailable cannot be performed 0000 Available Outside interlock 0000 Operation stop release condition 0001 Release communication signal receive
67. ed by 9949 button of the remote controller Only error of the indoor unit connected with remote controller to be operated is cleared 41 B Monitoring function of remote controller switch When using the remote controller Model Name RBC AMT32UL the following monitoring function can be utilized Calling of display Contents The temperature of each sensor of the remote controller indoor unit and outdoor unit and the operating status can be checked by calling the service monitor mode from the remote controller Procedure l Push 5 buttons simultaneously for 4 seconds or more to call up the service monitor mode The service monitor goes on and firstly the temperature of the CODE No ZZ is displayed 2 Push button to change CODE No CODE No to the CODE No to be monitored For display code refer to the following table 4 3 Push button button at left side to change to item to be monitored The sensor temperature of indoor unit or outdoor unit in its refrigerant line and the operating status are monitored 4 4 Push c button to return the status to the normal display TIMER SET Co 0 TIME FILTER RESET TEST SET CL SWING FIX UNIT LOUVER Returns to normal display Operation procedure 1 gt 2 3 4 42
68. een caused by a microprocessor malfunction attributable to a poor quality of the power source or an external noise Check for possible noise sources and shield the remote controller wiring and signal wires as necessary 45 8 2 Troubleshooting Method The remote controllers main remote controller and central control remote controller and the interface P C board of an outdoor unit are provided with an LCD display remote controller or a 7 segment display outdoor interface P C board to display operational status Using this self diagnosis feature the fault site faulty part may be identified in the event of a fault by following the method described below The list below summarizes check codes detected by various devices Analyze the check code according to where it is displayed and work out the nature of the fault in consultation with the list When investigating a fault on the basis of a display provided on the indoor remote controller or TCC LINK central control remote controller See the TCC LINK remote control or main remote controller display section of the list When investigating a fault on the basis of a display provided on an outdoor unit See the Outdoor 7 segment display section of the list When investigating a fault on the basis of a wireless remote controller controlled indoor unit See the Light sensor indicator light block section of the list List of Check Codes Indoor Unit Error detected by indoor
69. een removed I F P C board as required for given model Duplicated All stop There is duplication in central Check central control Indoor central control control address setting addresses L20 unit address Check network adaptor P C board VF Too many All stop There are more than four Check No of outdoor units outdoor units outdoor units connected Only up to 4 connected units per system allowed L28 L28 Check communication lines between outdoor units Check for defect in outdoor P C board I F 64 Check code z Location i Main Outdoor 7 segment display of Description System status Sica Check items locations remote detection controller Check code Sub code I F Error in No of All stop Insufficient number of IPDUs Check model setting of LAS IPDU IPDUs are detected when power is P C board for servicing 1 2 3 IPDU turned on outdoor I F P C board 010 Checkconnection of UART 02 O communication connector 03 O O Check A3 IPDU fan IPDU 04 and I F P C board for 050 o defect 06 OJO 07 000 129 129 08 o 09 O O o 0 oj o OD O O O 0 0F O O O O Symbol signifies site of IPDU error Detected indoor Indoor External Stop of Signal is present at When external device is address unit interlock of corresponding external e
70. en DISP pin the maximum opening degree 1500pls can be obtained again How to clear Open CHK pin While the system is operating it stops once but automatically returns to operation after several minutes Short circuit of CHK pin CN71 Normal time Abnormal time DISP pin open CN71 DISP pin short circuit C N71 Fan motor H H Stop Indoor PMV x Max opening degree 1500pls Min opening degree 30pls Min opening degree 30pls Drain pump ON ON ON Communication All ignored All ignored All ignored P C board LED Lights Lights Flashes 29 7 3 Method to Set Indoor Unit Function DN Code When performing this task be sure to use a wired remote controller Procedure To be performed only when system at rest SET 1 Pushthe buttons simultaneously and hold for at N least 4 seconds The unit No displayed first is the address of the header indoor unit in group control Then the fan and louver of the selected indoor unit move 2 UNIT LOUVER Each time the Select unit side of the button is pushed one of the indoor unit Nos under group control is displayed in turn Then the fan of the selected indoor unit move 3 Use G3 button to select the CODE No DN code of the desired function 4 Usethe button to select the desired SET DATA associated with the selected function 5 Pushthe 5 bu
71. ensor TC2 has F02 9 9 e T emperature sensor TC2 error been open short circuited _ ndoor heat exchanger Heat exchanger temperature sensor TC1 has Fos e emperature sensor TC1 error been open short circuited 2 _ Ambient temperature sensor TA Ambient temperature sensor TA has been open F10 e T error short circuited Discharge temperature sensor Discharge temperature sensor TF has been open Fi 9 9 e Ar TF error short circuited _ _ Indoor EEPROM is abnormal some other error may F29 SIM P C board or other indoor error be detected L03 e SIM indoor group header There is more than one header unit in group Es Connection of group control cable There is at least one stand alone indoor unit to L07 9 e SM to stand alone indoor unit which group control cable is connected Address setting has not been performed for one or L08 L08 SIM Indoor group address not set more indoor units also detected at outdoor unit end 109 e SIM Indoor capacity not set Capacity setting has not been performed for indoor L20 O SIM Duplicated central control address En in cantral oontrol address ndoor external error input Unit shutdown has been caused by external error L30 130 Detected indoor unit No SIM interlock input CN213 Indoor AC fan error is detected activation of fan P01 _ _ e ALT Indoor AC fan error mo
72. ensor miswiring incomplete insertion All stop Discharge temperature of compressor 1 TD1 does not increase despite compressor being in operation Check installation of TD1 sensor Check connection of TD1 sensor connector and wiring Check resistance characteristics of TD1 sensor Check for defect in outdoor P C board I F VF Activation of low pressure protection All stop Low pressure Ps sensor detects operating pressure lower than 0 02MPa Check service valves to confirm full opening both gas and liquid sides Check outdoor PMVs for clogging PMV1 2 Check for defect in SV2 or SV4 circuits Check for defect in low pressure Ps sensor Check indoor filter for clogging Check valve opening status of indoor PMV Check refrigerant piping for clogging Check operation of outdoor fan during heating Check for insufficiency in refrigerant quantity 1 Total shutdown in case of header unit Continued operation in case of follower unit MG CTT Magnet contactor Check code Main remote controller Outdoor 7 segment display Check code Sub code Location of detection Description System status Error detection condition s Check items locations H07 H07 VF Low oil level protection All stop Operating compressor detects continuous state of low oil level for about 2 hours lt Al
73. entry of outside air etc while the air conditioner stopped the indoor unit may operate as the fan motor stops Note If the fan lock was detected the operation of the indoor unit stops and the error is displayed Note If the incorrect duct design was found during installation work or you carelessly opened the service panel drain pump of the main unit during operation the check code P 12 is output and the motor stops Save operation SAVE 1 The save operation starts when button on the remotecontroller is turned on While the save operation is performed segment goes on the screen of the wired remote controller The request capacity ratio is restricted to approx 7596 during save operation If the save operation was validated the contents are held during the operation stop the operation mode change and the resetting of power supply Therefore the operation atthe next time also will be activated with Save operation is valid Remarks Check code P 12 7 APPLIED CONTROL AND FUNCTION 7 1 Indoor Controller Block Diagram 7 1 1 When Main Simple Wired Remote Controller Connected Main Simple wired remote controller Up to 2 sets Display part Function setup LCD Key switch Display part LED Power circuit Remote controller communication circuit Indoor unit 1 Main P C board MCC 1510 DC20V Remote controller communication circuit Centra
74. etail displayed on follower outdoor unit A3 IPDU Fan A3 IPDU Fan 112 3 IPDU 1 2 3 IPDU olof 2 o 0300 ol o M E31 o4 E31 e e IPDU communication error k s eR S between IPDUs P C 0510 o 06 O ojoj O 07 O O Circle O 08 Faulty IPDU 09 O Outdoor discharge Outdoor discharge temperature sensor TD1 has F04 _ F04 ALT temperature sensor TD1 bean abonar uted error Outdoor discharge Outdoor discharge temperature sensor TD2 has F05 F05 temperature sensor TD2 ben peni shor droulted error Outdoor heat exchanger 01 TE1 Outdoor heat exchanger temperature sensors ihe 02 TE2 F06 temperature sensor TE1 TE1 TE2 have been open short circuited TE2 error Outdoor liquid temperature Outdoor liquid temperature sensor TL has been For 9 9 sensor TL error open short circuited Outdoor outside air 2 A Outdoor outside air temperature sensor TO has F08 _ F08 ALT temperature sensor been Openishort cirouiled error F11 F11 48 Check code Display of receiving unit Outdoor 7 segment display TCC LINK central control Indicator light block Typical fault site Description of error or main remote n Sub code controller Opeon Timer Ready Flash display O VN Outdoor suction Outdoor suction temperat
75. eusep uoys peusep eys ye y eyeorpur aul uexoJug Ajeyeredes Jejonuoo Ajeyeyedes pjos ejoueH J llonuoo Jo 19 depy 10 q eNW VL NOLLdO OOOOO Svt ol 6nr1g LeNO TOY NH9 AVHO AHO MOvid 18 anid MOTIAA TJA 3LIHM IHM qati qati NOILVOISILNAGI 40709 0 0 GAHA OWA 9900090 999999 E 9 999999 999999 L 19 INJ HM ENO 0191 2210 1oopul 10 pseog 23 d 1040059 wa LEvL OOW Av 13H Josues due POLS LOL yoo g 1081 Josues joopu VL 100 eS nd AWd JOjoeoH 1 U9IIMS Sd JOJOW osnj oes Jojo wa 10 9 uu09 xxNO Sueg Ioqu s IHM EENO A ddns 09 1 0 2 802 a EE uBIH e IHM OLZNO Ad Malas o soopu 242 4 PARTS RATING Model MMD AP 0074BH2UL 0094BH2UL O124BH2UL O154BH2UL O184BH2UL Fan motor MF 240U 150 2A MF 240U 150 1A Drain pump motor ADP 1406 Float
76. f fan indicated by protection circuit motor connector please Flow of current equal to Check for defect in fan ignore them greater than the specified IPDU P C board value is detected during operation of the fan All stop Sub code C Check fan motor Higher temperature than the Check for defect in fan specified value is detected IPDU P C board during operation of the fan All stop Sub code D Check for defect in fan The resistance value of the IPDU P C board sensor is infinite or zero open or short circuit All stop Sub code E Check power voltage of Fan IPDU DC voltage the main power supply protection circuit Check for defect in fan The DC voltage higher or IPDU P C board lower than the specified Check connection of fan value is detected IPDU P C board 01 Compressor IPDU G TR short All stop Overcurrent is momentarily Check connector 1 side circuit protection detected during startup of connection and wiring on 02 Compressor error compressor A3 IPDU P C board 2 side Check for defect in P26 P26 03 Compressor 14 compressor layer short 3 side circuit Check for defect in outdoor P C board A3 IPDU 01 Compressor IPDU Compressor All stop Position detection is not Check wiring and 1 side position going on normally connector connection P29 P29 oo 16 detection circuit Check for compressor side error layer short circuit 03 Compressor Check for defect in A3 3 side
77. f the fan tap When B zone has continued for 6 minutes the opera tion shifts to C zone n defrost time the control pointis set to 10 8 F 6 C A zone OFF E zone HIGH HH L ITCJ Temperature of indoor heat exchanger sensor In D and E zones priority is given to remote controller air Speed setup In A zone amp is dis played B zone Over 72 F 26 C below 82 F 28 C ULTRA LOW LL C zone Over 82 F 28 below 86 F 30 C LOW L zone o gt Over 86 30 C below 90 32 C MED H Freeze prevention control Low temp release Outline of specifications In all cooling operation the air conditioner operates as de scribed below based upon temp detected by TC1 TC2 and sensors When J zone is detected for 5 minutes the thermostat is forcedly off n K zone the timer count is interrupted and held e When zone is detected the timer is cleared and the operation returns to the normal operation f zone continues operation of the indoor fan in LOW mode continues until it reaches the 7 zone Itis reset when the following conditions are satisfied Reset conditions 1 1 gt 54 F 12 C and TC2 gt 54 F 12 C and TC gt 54 F 12 C 2 20 minutes passed after stop P1 50 F 41 F 14 F 10 C 5 C 10 C Ql 32 F 0 C 7 F 14 C 2
78. f the refrigerant and the closed room full with gas is dangerous because Ventilation a shortage of oxygen occurs Be sure to execute ventilation When checking the circuit inevitably under condition of the power ON use rubber gloves and others not to touch to the charging section Dv If touching to the charging section an electric shock may be caused When you access inside of the service panel to repair electric parts wait for about Be attentive to five minutes after turning off the breaker Do not start repairing immediately electric shock Otherwise you may get electric shock by touching terminals of high voltage capacitors Natural discharge of the capacitor takes about five minutes When the refrigerant gas leaks find up the leaked position and repair it surely If the leaked position cannot be found up and the repair work is interrupted pump down and tighten the service valve otherwise the refrigerant gas may leak into the room The poisonous gas generates when gas touches to fire such as fan heater stove or cocking stove though the refrigerant gas itself is innocuous When installing equipment which includes a large amount of charged refrigerant Q such as a multi air conditioner in a sub room itis necessary that the density does not the limit even if the refrigerant leaks Compulsion If the refrigerant leaks and exceeds the limit density an accident of shortage of oxygen is caused For the installation moving reinstallation w
79. he following table about DIP switch setting and drawing of P C board parts layout 2 Itis necessary to set Indoor unit to be exchanged Remote controller 1 1 Based upon the system configuration turn on power of the indoor unit with one of the following items 1 Single Individual operation Turn on power of the indoor units and proceed to Procedure 3 2 Group operation A In case that power of the exchanged indoor unit only can be turned on Turn on power of the exchanged indoor unit only and proceed to Procedure 3 B In case that power of the indoor units cannot be turned on individually CASE 1 a Remove temporarily the group wire connected to the terminal blocks A and B of the exchanged indoor unit b After connecting the remote controller wire only to the removed terminal block turn on power of the indoor units and proceed to Procedure 3 When the above methods cannot be used follow atthe CASE 2 below 80 C In case that power of the indoor units cannot be turned in individually CASE 2 a Remove all CN41 connectors of the indoor units in the same group except those of the exchanged indoor unit b Turn on power of the indoor units and proceed to Procedure 3 After Procedure 3 operation has finished be sure to return the temporarily removed group wire or CN41 connector to the original connection Indoor unit board Indoor unit Service P C board of the unit to be changed
80. ible cause A compressor would not start Could it just be the 3 minute delay period 3 minutes after compressor shutdown Could it just be the air conditioner having gone thermo OFF Could it just be the air conditioner operating in fan mode or put on the timer Could it just be the system going through initial communication An indoor fan would not start Could it just be cold air discharge prevention control which is part of heating An outdoor fan would not start or would change speed for no reason Could it just be cooling operation under low outside temperature conditions Could it just be defrosting operation An indoor fan would not stop Could it just be the elimination of residual heat being performed as part of the air conditioner shutdown process after heating operation The air conditioner would not respond to a start stop command from a remote controller Could it just be the air conditioner operation under external or remote control 2 Troubleshooting procedure When a fault occurs proceed with troubleshooting in accordance with the procedure shown below NOTE E28 error Investigate check code displayed on interface P C board of header unit Check fault site or faulty part Investigate check code displayed on interface P C board of relevant follower unit Any other fault Rather than a genuine fault see the List of Check Codes below the problem could have b
81. ice indoor P C board assembly according to the following procedure After replacement make sure that the indoor unit address is set correctly and also the refrigerant cycle is working correctly by test operation Replacement procedure Method 1 Before replacement power of the indoor unit can be turned on and the setup data can be readout by the wired remote controller Read EEPROM data Procedure 1 Replace service P C board amp power ON Procedure 2 Write the read data EEPROM Procedure 3 Power reset If in group operation reset the power for all indoor units which are connected to the remote controller Method 2 Before replacement the setup data can not be read out by the wired remote controller Replace service P C board amp power ON Procedure 2 Write the data such as option input selection setup to EEPROM Procedure 3 According to the customers information Procedure1 Readout of the setup data from EEPROM Data in EEPROM contents which have been changed atthe local site are read out together with data in EEPROM setat shipment from the factory 1 Push C 2 buttons of the remote controller at the same time for 4 seconds or more 1 Corresponded with No in Remote controller as shown below picture When group operation the header indoor unit address is displayed the first time In this time the CODE No DN Zis di
82. igerant If using gas for charging composition of the refrigerant changes and then characteristics of the air conditioner change 3 Pipe Materials For the refrigerant pipes copper pipe and joints are mainly used Itis necessary to select the most appropriate pipes to conform to the standard Use clean material in which impurities adhere inside of pipe or joint to a minimum 1 Copper pipe Piping The pipe thickness flare finishing size flare nut and others differ according to a refrigerant type When using a long copper pipe for R410A itis recommended to select Copper or copper base pipe without seam and one with bonded oil amount 0 0001 Ibs 32 10 40mg 10m or less Also do not use crushed deformed discolored especially inside pipes Impurities cause clogging of expansion valves and capillary tubes Flare nut Use the flare nuts which are attached to the air conditioner unit 2 Joint The flare joint and socket joint are used for joints of the copper pipe The joints are rarely used for installation of the air conditioner However clear impurities when using them 4 Tools 1 Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge clogging of capillary etc Accordingly the tools to be used are classified into the following three types 1 Tools exclusive for R410A Those which cannot be used for conventional refrigerant R 22 2 Tools exclus
83. ine is found to have been connected when indoor automatic address setting is in progress Disconnect inter line tie cable in accordance with automatic address setting method explained in Address setting section E23 E23 VF Outdoor outdoor communication transmission error All stop Signal cannot be transmitted to other outdoor units for at least 30 seconds continuously Check power supply to outdoor units Is power turned on Check connection of tie cables between outdoor units for bad contact or broken wire Check communication connectors on outdoor P C boards Check for defect in outdoor P C board I F Check termination resistance setting for communication between outdoor units E25 E25 VF Duplicated follower outdoor address All stop There is duplication in outdoor addresses set manually Note Do not set outdoor addresses manually E26 E26 Address of outdoor unit from which signal is not received normally VF Dropping out of outdoor unit All stop Outdoor unit initially communicating normally fails to return signal for specified length of time Backup setting is being used for outdoor units Check power supply to outdoor unit IS power turned on Check connection of tie cables between outdoor units for bad contact or broken wire Check communication connectors on outdoor P C boards Check for defect in outdoor P C board
84. infinity or zero open short circuit Check connection of TCJ sensor connector and wiring Check resistance characteristics of TCJ sensor Check for defect in indoor P C board F02 Indoor unit Indoor TC2 Sensor error Stop of corresponding unit Sensor resistance is infinity or zero open short circuit Check connection of TC2 sensor connector and wiring Check resistance characteristics of TC2 sensor Check for defect in indoor P C board F03 Indoor unit Indoor TC1 Sensor error Stop of corresponding unit Sensor resistance is infinity or zero open short circuit Check connection of TC1 sensor connector and wiring Check resistance characteristics of TC1 sensor Check for defect in indoor P C board F04 F04 VF TD1 sensor error All stop Sensor resistance is infinity or zero open short circuit Check connection of TD1 sensor connector Check resistance characteristics of TD1 sensor Check for defect in outdoor P C board I F F05 F05 VF TD2 sensor error All stop Sensor resistance is infinity or zero open short circuit Check connection of TD2 sensor connector Check resistance characteristics of TD2 sensor Check for defect in outdoor P C board I F F06 F06 01 TE1 sensor error 02 TE2 sensor error VF TE1 TE2 sensor error All stop Sensor resistance is infinity or zero open short circuit
85. ircuit error Blinking H05 Wiring installation error or detachment of outdoor discharge temperature sensor TD1 H06 Abnormal drop in low pressure sensor Ps reading Protective shutdown of outdoor H07 Abnormal drop in oil level unit H08 Error in temperature sensor for oil level detection circuit TK1 TK2 TK3 TK4 or TK5 H15 Wiring installation error or detachment of outdoor discharge temperature sensor TD2 H16 Oil level detection circuit error Error in outdoor unit TK1 TK2 TK3 TK4 or TKS circuit H25 Wiring installation error or detachment of outdoor discharge temperature sensor TD3 L03 Duplicated indoor group header unit Operation Timer Ready vl vl 105 Duplicated priority indoor unit as displayed on priority indoor unit pes 106 Duplicated priority indoor unit as displayed on indoor unit other than priority indoor unit Ld LO7 Connection of group control cable to stand alone indoor unit Synchronized blinking L08 Indoor group address not set L09 Indoor capacity not set L04 Duplicated outdoor refrigerant line address Operation Timer Ready 14 vl L10 Outdoor capacity not set der O Xo L17 Outdoor model incompatibility error L 1 L18 Flow selector units error Synchronized blinking L20 Duplicated central control address L28 Too many outdoor units connected L29 Error in number of IPDUs L30 Indoor external interlock error 54 Light block Check code Cause of fault Operation Timer Ready
86. iss charging the route of the service port is changed from one of the former R22 Do not useany refru igerant different from the onespecified for complement or replacement Otherwise abnormally high pressuremay be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body For an air conditioner which uses R410A never use other refrigerant than R410A For an air conditioner which uses other refrigerant R22 etc never use R410A If different types of refrigerant are mixed abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused Do not charge refrigerant additionally If charging refrigerant additionally when refrigerant gas leaks the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury Therefore if the refrigerant gas leaks recover the refrigerant in the air conditioner execute vacuuming and then newly recharge the specified amount of liquid refrigerant In this time never charge the refrigerant over the specified amount When recharging the refrigerant in the refrigerating cycle do not mix the refrigerant or air other than R410A into the specified refrigerant If air or others is mixed
87. it Check connection of TK4 sensor connector Check resistance characteristics of TK4 sensor Check for defect in outdoor P C board I F All stop Sensor resistance is infinity or zero open short circuit Check connection of TK5 sensor connector Check resistance characteristics of TKS sensor Check for defect in outdoor P C board I F H15 H15 VF TD2 sensor miswiring incomplete insertion All stop Air discharge temperature of TD2 does not increase despite compressor 2 being in operation Check installation of TD2 sensor Check connection of TD2 sensor connector and wiring Check resistance characteristics of TD2 sensor Check for defect in outdoor P C board I F 62 Check code Location Outdoor 7 segment displa System Error detection i bool 9 play E m Description M un condition s Check items locations controller Check code Sub code 01 TK1 oil Oil level All stop No temperature Check for disconnection of TK1 sensor circuit error detection change is detected Check resistance characteristics of 02 TK2 oil circuit error by TK1 despite TK1 sensor circuit error compressor 1 having Check for connection error involving 03 TK3 oil been started TK1 TK2 TK3 TK4 and TK5 sensors circuit error Check for faulty operation in SV3E or 04 TK4 oil SV3F valve circuit error
88. it as the original Turn OFF the breaker before removing the front panel and cabinet otherwise an electric shock is caused by high voltage resulted in a death or injury Q During operation a high voltage with 400V or higher of circuit z at secondary circuit of the high voltage transformer is applied If touching a high voltage with the naked hands or body an electric shock is caused even if using an electric insulator For details refer to the electric wiring diagram Turn off breaker When removing the front panel or cabinet execute short circuit and discharge between high voltage capacitor terminals Execute discharge If discharge is not executed an electric shock is caused by high voltage resulted in a death or injury between terminals After turning off the breaker high voltage also keeps to apply to the high voltage capacitor Do notturn on the breaker under condition that the front panel and cabinet are removed An electric shock is caused by high voltage resulted in a death or injury Prohibition Before troubleshooting or repair work check the earth wire is connected to the earth terminals of the main unit otherwise an electric shock is caused when a leak occurs If the earth wire is not correctly connected contact an electric engineer for rework 2 Prohibition of modification Do not modify the products Do notalso disassemble or modify the parts It may cause a fire electric shock
89. ive for R410A but can be also used for conventional refrigerant R 22 3 Tools commonly used for RA10A and for conventional refrigerant R 22 The table below shows the tools exclusive for RA10A and their interchangeability Tools exclusive for R410A The following tools for R410A are required Tools whose specifications are changed for R410A and their interchangeability R410A Conventional air air conditioner installation conditioner installation Used tool Existence of Whether conven whether conventional new equipment tional equipment bien caf I for R410A ambe Cuit CaN peue Flare tool Pipe flaring Note Yes Copper pipe gauge for F laring by conventional adjusting projection margin flare tool Note Note Torque wrench Tightening of flare nut No Gauge manifold Evacuating refrigerant No Charge hose charge run check etc Vacuum pump adapter Vacuum evacuating No e eee Electronic balance for refrigerant charging Refrigerant charge Yes Refrigerant cylinder Refrigerant charge No Leakage detector Gas leakage check No Note When flaring is carried out for R410A using the conventional flare tools adjustment of projection margin is necessary For this adjustment a copper pipe gauge etc are necessary General tools Conventional tools can be used In addition to the above exclusive tools the following equipments which serve also for
90. l control communication circuit EEPROM Sub P C board MCC 1451 Em Start Alarm Ready Thermostat ON COOL HEAT FAN Outside output Float input BUS Communication circuit Fan motor control circuit AC synchronous signal input circuit DC12V Power circuit DC280V L1 L2 Power supply 208 230 1 60 Ec U1 Outdoor unit Power Power supply supply tot ot L J Outdoor Outdoor unit unit Max 8 units are connectable 7 1 2 When Wireless Remote Controller Kit Connected pejyoeuuoo eq ued spun g o dn yun JOOPINO 09 1 0 z 80z en uoneoiunuuJoo Joopino Joopu In eounos yun Joopino 9921108 1 1 I J NOd y seeues Joopjno yun omnos 1 1 yea seeues aqq MS 4 jezzng Ajddns JeMod p1eoq 2 Josues JOSUaS MS uonejedo oueBjeur3 nouo indui euis A08cOG snouoJuou s OV Joyow nouo sng jndino episino NVJ IV3H 1009 NO e SOWJ9Y vH peeu uuel v1e1s indui 12014 Josues FOL senna J9AnO Josues ZO L Josues LOL Josues YL
91. l outdoor units in corresponding line to be checked Check balance pipe service valve to confirm full opening Check connection and installation of TK1 TK2 TK3 TK4 and TK5 sensors Check resistance characteristics of TK1 TK2 TK3 TK4 and TK5 sensors Check for gas or oil leak in same line Check for refrigerant entrapment inside compressor casing Check SV3A SV3B SV3C SV3D SV3E and SV3F valves for defect Check oil return circuit of oil separator for clogging Check oil equalizing circuit for clogging H08 01 TK1 sensor error 02 TK2 sensor error 03 TK3 sensor error 04 TK4 sensor error 05 TK5 sensor error H08 VF Error in temperature sensor for oil level detection All stop Sensor resistance is infinity or zero open short circuit Check connection of TK1 sensor connector Check resistance characteristics of TK1 sensor Check for defect in outdoor P C board I F All stop Sensor resistance is infinity or zero open short circuit Check connection of TK2 sensor connector Check resistance characteristics of TK2 sensor Check for defect in outdoor P C board I F All stop Sensor resistance is infinity or zero open short circuit Check connection of TK3 sensor connector Check resistance characteristics of TK3 sensor Check for defect in outdoor P C board I F All stop Sensor resistance is infinity or zero open short circu
92. late 5 Take off fixing screws ofthe electric parts box and then remove the electric parts box Electric parts box Conduit fixed plate Part name Procedure Cautions when attaching the electric parts box Using cable clamp bundle each extra lead wire so that itis not caught in the fan and then attach the electric parts box After attaching the electric parts box pull the extra wire in the electric parts box and bundle it with clamp etc Remarks Cable clamp Cord clamp F or fan motor lead wire Intake port of PMV float SW TC1 TC2 and TA sensor lead wires Intake port of fan motor and drain pump lead wires Silocco fan fan motor 1 Detachment 1 Take off fixed screws and then remove the base plate 73 Base plate pose plate fixed screw fixed screw Base plate Part name Procedure 2 Remove cover of the electric parts box Refer to No 3 Remove connectors of the fan motor and TA sensor from P C board 4 Take off hexagonal screws which fix the fan assembly and the main unit For MMD AP 021 to 048 take off also screws which fix the fan case to the top plate 5 Remove the fan assembly from the main unit The fan assembly is fixed by the hooking claw atthe upper side of the main unit Lift up it once and pull downward to remove the hooking claw 6 Insert the hexagonal wrench as shown in the right figure and l
93. lation combined with a gas leak detection device The concentration is as given below Total amount of refrigerant Ibs kg Min volume of the indoor unit installed room ft m3 lt Concentration limit Ibs ft kg m The concentration limit of R410A which is used in multi air conditioners is 0 019 Ibs ft 0 3kg m NOTE 1 If there are 2 or more refrigerating systems in a single refrigerating device the amounts of refrigerant should be as charged in each independent device Outdoor unit e g charged amount e g 22 Ibs 10 kg charged amount 33 Ibs 15 kg Indoor unit For the amount of charge in this example The possible amount of leaked refrigerant gas in rooms A B and C is 22 Ibs 10kg The possible amount of leaked refrigerant gas in rooms D E and is 33 Ibs 15kg NOTE 2 The standards for minimum room volume are as follows 1 No partition shaded portion 2 When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas opening without a door or an opening 0 15 or larger than the respective floor spaces atthe top or bottom of the door p Outdoor unit eet piping Indoor unit If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected the smallest room of course becomes the object But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest
94. lphanumerical letters gt 0 1 2 3 4 6 6 7 8 9 A b C d E J L P Using indoor unit indicators receiving unit light block wireless type To identify the check code check the 7 segment display on the header unit To check for check codes not displayed on the 7 segment display consult the List of Check Codes Indoor Unit in 8 2 Troubleshooting Method Vd Goes off Lighting pro Blinking 0 5 seconds Light block Check code Cause of fault Operation Timer Ready e e Power turned off or error in wiring between receiving and indoor units All lights out Operation Timer Ready ED Faulty reception Receiving unit Error or poor contact in wiring sdy E02 Faulty transmission between receiving and indoor der e e E03 Loss of communication units Blinking E08 Duplicated indoor unit No address E09 Duplicated master remote controller seung eror E10 Indoor unit inter MCU communication error E12 Automatic address starting error E18 Error or poor contact in wiring between indoor units indoor power turned off Operation Timer Ready 04 Gasa CF indoor outdoor communication e 29 06 Faulty reception in indoor outdoor communication dropping out of indoor unit Blinking E07 Faulty transmission in indoor outdoor communication E15 Indoor unit not found during automatic address setting E16 Too many indoo
95. luding Medium Static Ducted may not sometimes output the error code 16 because the microcomputer cannot judge that even if the connection of the indoor units was over its maximum capacity 120 P C board I F 57 Check code Main remote controller Outdoor 7 segment display Check code Sub code Location of detection Description System status Error detection condition s Check items locations E18 Indoor unit Error in communication between indoor header and follower units Stop of corresponding unit Periodic communication between indoor header and follower units cannot be maintained Check remote controller wiring Check indoor power supply wiring Check P C boards of indoor units E19 E19 00 No header unit 02 Two or more header units VF Error in number of outdoor header units All stop There is more than one outdoor header unit in one line There is no outdoor header unit in one line Outdoor header unit is outdoor unit to which indoor outdoor tie cable U1 U2 is connected Check connection of indoor outdoor communication line Check for defect in outdoor P C board I F E20 E20 01 Connection of outdoor unit from other line 02 Connection of indoor unit from other line VF Connection to other line found during automatic address setting All stop Equipment from other l
96. mote Stop of Signal cannot be transmitted Check internal controller controller corresponding from remote controller to transmission circuit of E02 transmission unit indoor unit remote controller error Replace remote controller as necessary Indoor Indoor remote Stop of There is no communication Check remote controller unit controller corresponding from remote controller and network adaptor communication unit including wireless or wiring E03 error network adaptor detected at indoor end Indoor Indoor outdoor Stop of Indoor unit is not receiving Check order in which unit communication corresponding signal from outdoor unit power was turned on for circuit error unit indoor and outdoor units detected at Check indoor address E04 z indoor end setting Check indoor outdoor tie cable Check outdoor termination resistance setting SW30 Bit 2 No of indoor VF Dropping out of All stop Indoor unit initially Check power supply to units from indoor unit communicating normally fails indoor unit which signal is to return signal for specified Is power turned on received length of time Check connection of normally indoor outdoor communication cable Check connection of communication connectors ENS Eve on indoor P C board Check connection of communication connectors on outdoor P C board Check for defect in indoor P C board Checkfor defect in outdoor P C board I F
97. n Explanation DANGER Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed Indicates possibilities assumed that a danger causing a death or serious injury of the AN WARNING repair engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed Indicates contents assumed that an injury or property damage may be caused on the AN CAUTION repair engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed Property damage Enlarged damage concerned to property furniture and domestic animal pet Explanation of illustrated marks Explanation Indicates prohibited items Forbidden items to do The sentences near an illustrated mark describe the concrete prohibited contents Indicates mandatory items Compulsory items to do The sentences near an illustrated mark describe the concrete mandatory contents Indicates cautions Including danger warning The sentences or illustration near or in an illustrated mark describe the concrete cautious contents Confirmation of warning label on the main unit Confirm that labels are indicated on the specified positions Refer to the Parts disassembly diagram Outdoor unit If removing the label during parts replace stick
98. n pan fixed plate to remove the drain pan fixed plate MMD AP007 to AP012 none MMD AP015 to AP018 1 position MMD AP021 to AP048 2 positions 4 Remove the drain pan from the main unit Remarks Fixed screws for the base plate Base plate Drain pan Drain cap Drain pan fixed plate Float switch Detachment 1 Remove the drain pan Refer to No 2 Take off screws of the float switch fixed plate 3 Remove the plastic nut for fixing the float switch 4 Remove the float switch 76 Float switch Float switch fixed base Fixed screws for the float switch Float switch Viewed from opposite side Float switch fixed base Plastic nut Part name Drain pump Procedure 1 Detachment 1 Remove the drain pan Refer to No 2 Take off screws for the fixed plate of the main unit and the pump 4 positions 3 Take off screws of the drain pump fixed plate to remove the drain pump Remarks Fixing screws of the drain pump fixed plate 4 positions r Drain pump Screws for fixing drain pump TC1 TC2 TCJ sensors 1 Detachment 1 Take off fixing screw for the check port cover at right side 5 positions 2 Pull and take off the sensors from the sensor holder of piping 277 Check port cover A TC1 sensor Tube color Blue TCJ sensor TC2 sensor Tube color Red Tube color Black Part name Heat exchanger Procedure
99. ndoor unit which is under STOP Thermo OFF The indoor unit which is for heating status or which operates in FAN mode performs the under thermo OFF COOL refrigerant Oil following controls when it received the heating status or which operates in refrigerant Oil recovery signal from the outdoor unit FAN mode stops the indoor 1 Opens PMV ofthe indoor unit with a constant fan and displays READY amp opening degree Recovery operation is usually 2 Detects temperature of TC2 and then closes PMV performed every 1 hour When there is even 1 indoor unit which the thermo unit is off Compensation 1 For 3 minutes after start of operation the opera Usually the priority is given to control for short tion is forcedly continued even if the unit enters in 5 minutes at outdoor controller intermittent Thermo OFF condition side operation However the thermostat is OFF giving prior to COOL HEAT selection READY for operation and protective control Drain pump In cooling operation this control anytime operates Check Code P 10 control the drain pump During operation of the drain pump if the float switch operates the drain pump continuously operates and a check code is issued During stop status of the drain pump if the float switch operates the thermostat is forcedly off and this control operates the drain pump After continuous operation of the float switch for approx 5 minutes this control stops the operation and a
100. oncerned to New Refrigerant The pressure of R410A is high 1 6 times of that of the former refrigerant R22 Accompanied with change of refrigerant the refrigerating oil has been also changed Therefore be sure that water dust the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant during installation work or service work If an incorrect work or incorrect service is performed there is a possibility to cause a serious accident Use the tools and materials exclusive to R410A to purpose a safe work 2 Cautions on Installation Service 1 Do not mix the other refrigerant or refrigerating oil For the tools exclusive to R410A shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them 2 As the use pressure of the new refrigerant is high use material thickness of the pipe and tools which are specified for R410A 3 In the installation time use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water oxide scales oil etc Use the clean pipes Be sure to brazing with flowing nitrogen gas Never use gas other than nitrogen gas 4 Forthe earth protection use a vacuum pump for air purge 5 R410A refrigerant is azeotropic mixture type refrigerant Therefore use liquid type to charge the refr
101. oor 7 segment display Indicator light block Typical fault site Description of error control Sub code Timer Ready Flash Faulty caritral conitr l Central control device is unable to transmit C05 Celt signal due to duplication of central control communication transmission device No indication when Faulty central control Central control device is unable to receive C06 _ _ main remote controller aa communication reception signal also in use Multiple network adapters are connected to Multiple network adapters remote controller communication line Blanket alarm for general Device connected to general purpose device C12 _ purpose device control control interface for TCC LINK is faulty interface Group follower unit is faulty unit No and P30 _ As per alarm unit see Group control follower unit above detail displayed on main remote above error controller Note The same error e g a communication error may result in the display of different check codes depending on the device that detects it Moreover check codes detected by the main remote controller central control device do not necessarily have a direct impact on air conditioner operation 47 List of Check Codes Outdoor Unit Errors detected by SMMS i outdoor interface typical examples IPDU Intelligent Power Drive Unit Inverter P C board O Lighting
102. oosen the fixed screw of the Silocco fan 74 Remarks Fan motor connector Hexagonal screws For fixing the fan assembly and the main unit N Fan case fixed screws Silocco fan Fan fixed screw ww Fan base Fan case Hexagonal Silocco fan Fan fixed screw Part name Procedure 7 Take off screws of the motor band and the motor earth wire 8 Take off the fan case fixed screws and then pull out the fan case from the fan base 9 Remove cover of the fan case 10 Remove the Silocco fan Cautions when attaching the Silocco fan Attach the Silocco fan in the reverse pro cedure of detachment 1 Place the Silocco fan in the arrow direc tion as shown in the right figure 2 Adjust position so that clearance between the Silocco fan and the fan case becomes even and then fix the fan 75 Remarks Fan case Motor band Motor earth wire Fan motor Fan case Fan case fixed screws 2 pieces right left each Attaching direction of Silocco fan 4 5mm or more 4 5mm or more Part name Drain pan Procedure 1 Detachment 1 Take off fixed screws for the base plate to remove the base plate from the main unit 2 Prepare a water receiver take off the drain cap and then extract drain water accumu lated in the drain pan NOTE When taking off the drain cap be sure receive drain water using a bucket etc 3 Take off screws of the drai
103. or injury For spare parts use those specified If unspecified parts are used a fire or electric shock may be caused x For details refer to the parts list e Do not bring a child close to the equipment Before troubleshooting or repair work do not bring a third party a child etc except the repair engineers close to the equipment It causes an injury with tools or disassembled parts Please inform the users so that the third party a child etc does not approach the equipment Insulating measures Connect the cut off lead wires with crimp contact etc put the closed end side upward and then apply a water cut method otherwise a leak or production of fire is caused at the users side When repairing the refrigerating cycle take the following measures 1 Be attentive to fire around the cycle When using a gas stove etc be sure to put out fire before work otherwise the oil mixed with refrigerant gas may catch fire 2 Do not use a welder in the closed room When using it without ventilation carbon monoxide poisoning may be caused 3 Do not bring inflammables close to the refrigerant cycle otherwise fire of the welder may catch the inflammables Refrigerant Check the used refrigerant name and use tools and materials of the parts which match with it For the products which use R410A refrigerant the refrigerant name is indicated at a position on the outdoor unit where is easy to see To prevent m
104. ork follow to the Installation Manual If an incorrect installation is done a trouble of the refrigerating cycle water leak electric shock or fire is caused If check is not executed a fire electric shock or injury may be caused o After repair work has finished check there is no trouble For a check turn off the power breaker Check after repair After repair work installation of front panel and cabinet has finished execute a test run to check there is no generation of smoke or abnormal sound If check is not executed a fire or an electric shock is caused Before test run install the front panel and cabinet Check the following items after reinstallation Check after reinstallation 1 The earth wire is correctly connected 2 The power cord is not caught in the product 3 There is no inclination or unsteadiness and the installation is stable N CAUTION Be sure to put on the gloves and a long sleeved shirt otherwise an injury may be caused with the parts etc Heavy gloves such as work gloves Puton gloves When the power was turned on start to work after the equipment has been sufficiently cooled As temperature of the compressor pipes and others became high due to cooling heating Cooling check operation a burn may be caused New Refrigerant R410A This air conditioner adopts a new HFC type refrigerant R410A which does not deplete the ozone layer 1 Safety Caution C
105. outdoor address starting setting is started while setting again after communication error automatic address setting disconnecting 02 for equipment in other communication cable to Outdoor refrigerant line is in that refrigerant line E12 E12 outdoor progress communication Outdoor automatic address setting is started while automatic address setting for indoor units is in progress VF Indoor unit not All stop Indoor unit cannot be Check connection of found during detected after indoor indoor outdoor automatic automatic address setting is communication line address setting started Check for error in indoor power supply system EI ED T Check for noise from other devices Check for power failure Check for defect in indoor P C board 00 VF Too many All stop Combined capacity of Check capacities of indoor Overloading indoor units indoor units exceeds 12096 units connected 01 connected of combined capacity of Check combined HP No of units outdoor units capacities of indoor units connected Note Check HP capacity If this code comes up settings of outdoor units after backup setting for Check No of indoor units outdoor unit failure is connected E16 E16 performed perform No Check for defect in outdoor overloading detected setting lt No overloading detected setting method gt Turn on SWO9 Bit 2 on I F P C board of outdoor header unit More than 48 indoor units are connected The system inc
106. procedure 1 2 END 2 To know the position of indoor unit by address To confirm the unit No in the group control Follow to the procedure during operation in this procedure the indoor units in group control stop Procedure The indoor unit numbers in the group control are successively displayed and fan louver and drain pump of the corresponding indoor unit are turned on Follow to the procedure during operation 1 Push Ce and G buttons simultaneously for 4 seconds or more Unit No ALL is displayed Fans and louvers of all the indoor units in the group control operate 2 Every pushing s s button button at left side the unit numbers in the group control are successively displayed e The unit No displayed at the first time indi cates the master unit address Fan and louver of the selected indoor unit only operate 3 Push c button to finish the procedure All the indoor units in the group control stop n r ON OFF TIMER SET FAN MODE 1 e TIME SAVE VENT am RESET TEST SET CL SWING FIX UNIT LOUVER amp O g Operation procedure 1 2 3 END B How to check all the unit No from an arbitrary wired remote controller Procedure Carry outthis procedure during stop of system The indoor unit No and the position in the identical refrigerant piping can be checked An outdoor unit is selected
107. r conditioner is in operation If the display has already disappeared access error history by following the procedure described Check code below Indoor unit No in which fault has occurred 2 Error history The error history access procedure is described below up to four errors stored in memory Error history can be accessed regardless of whether the air conditioner is in operation or shut down Procedure To be performed when system at rest 1 Invoke the SERVICE CHECK mode by pushing the C buttons simultaneously and holding for at least 4 seconds The letters SERVICE CHECK light up and the check code Ot is displayed indicating the error history This is accompanied by the indoor unit No to which the error history is related and a check code TEMP 2 2 Tocheck other error history items push the c c button to select another check code E Check code 51 latest Check code 0 oldest amp 9 Note Error history contains four items SAVE VENT sr Normal display is restored When the Q button is pushed normal display is restored Steps to follow 1 2 3 Do not push the button as it would erase the whole error history of the indoor unit How to read displayed information lt 7 segment display symbols ry P nt q CO Oe LJ lt Corresponding a
108. r units connected overloading E19 Error in number of outdoor header units E20 Detection of refrigerant piping communication error during automatic address setting E23 Faulty transmission in outdoor outdoor communication E25 Duplicated follower outdoor address E26 Faulty reception in outdoor outdoor communication dropping out of outdoor unit E28 Outdoor follower unit error E31 IPDU communication error Operation Timer Ready P01 Indoor AC fan error A xL P10 Indoor overflow error pou P12 Indoor DC fan error L I Alternate blinking P13 Outdoor liquid backflow detection error Operation Timer Ready P03 Outdoor discharge TD1 temperature error Vw Vly P04 Activation of outdoor high pressure SW po e EE Open phase power failure P05 Inverter DC voltage Vdc error Alternate blinking MG CTT error P07 Outdoor heat sink overheating error Poor cooling of electrical component IGBT of outdoor unit P15 Gas leak detection insufficient refrigerant charging P17 Outdoor discharge TD2 temperature error P18 Outdoor discharge TD3 temperature error P19 Outdoor 4 way valve reversing error P20 Activation of high pressure protection P22 Outdoor fan IPDU error P26 Outdoor G Tr short circuit error P29 Compressor position detection circuit error P31 Shutdown of other indoor unit in group due to fault group follower unit error MG CTT Magnet contactor 53
109. rnal emergency input Thermo output selection T10 0000 Thermo ON Input selection T10 0000 Operation input Sensor selection 0000 Available Timer set Wired remote controller Indoor unit capacity CODE No 11 Setup data Model Setup data Model Invalid 018 type 007 type 021 type 024 type 009 type 027 type 030 type 012 type 036type 015 type 048 type x Initial value of EEPROM installed on the supplied service P C board 83 0000 Available 11 EXPLODED VIEWS AND PARTS LIST 11 1 Medium Static Ducted Type MMD AP0074BH2UL AP0094BH2UL APO124BH2UL AP0154BH2UL AP0184BH2UL 219 233 235 220 234 236 1 2 77 7 218 84 0074BH2UL 0184BH2 UL 201 43120239 FAN MULTI BLADE 1 1 1 2 2 203 4314 472 REFRIGERATION CYCLE ASSY 1 1 1 1 1 204 43196012 BUSHING 2 2 2 2 2 206 43079249 BAND HOSE 1 1 1 1 1 210 43070146 HOSE DRAIN 1 1 1 1 1 211 43177019 PUMP DRAIN ADP 1406 1 1 1 1 1 212 43151294 SWITCH FLOAT FS 0218 102 1 1 1 1 1 214 43172222 PAN ASSY DRAIN 1 1 215 43172223 PAN ASSY DRAIN 1 1 1 216 43171080 SOCKET PAN DRAIN 1 1 1 1 1 217 43158138 LABEL WARNING
110. ro open short circuit sensor connector Check resistance Ree F22 characteristics of sensor Check for defect in outdoor P C board I F VF Ps sensor All stop Output voltage of Ps Check for connection error error sensor is zero involving Ps sensor and Pd sensor connectors Check connection of Ps sensor connector Check for defect in Ps sensor F23 F23 Check for deficiency in compressive output of compressor Check for defect in 4 way valve Check for defect in outdoor P C board I F Check for defect in SV4 circuit VF Pd sensor All stop Output voltage of Pd Check connection of Pd error sensor is zero sensor sensor connector F24 F24 _ open circuited Check for defect in Pd sensor Pd gt 601psi 4 15MPa Check for defect in outdoor despite compressor having P C board I F been turned off 60 Check code Main remote controller Outdoor 7 segment display Check code Sub code Location of detection Description System status Error detection condition s Check items locations F29 Indoor unit Other indoor error Stop of corresponding unit Indoor P C board does not operate normally Check for defect in indoor P C board faulty EEPROM F31 F31 VF Outdoor EEPROM error All stop 1 Outdoor P C board I F does not operate normally Check power supply voltage Check po
111. rror input connected to CN213 indoor unit unit terminal CN213 for 1 connector minute 1 Check for defect in external device 2 Check for defect in indoor 30 0 P C board When external device is not connected to CN213 connector 1 Check for defect in indoor P C board 131 1 VF Extended IC Continued There is part failure in P C Check outdoor P C board error operation board I F Indoor Indoor fan Stop of Check the lock of fan motor P01 unit motor error corresponding AC fan unit Check wiring I F Discharge All stop Discharge temperature TD1 Check outdoor service temperature exceeds 239 F 115 C valves gas side liquid TD1 error side to confirm full opening Check outdoor PMVs PMV1 2 4 for clogging Check resistance characteristics of TD1 sensor PUR Check for insufficiency in refrigerant quantity Check for defect in 4 way valve Check for leakage of SV4 circuit Check SVA circuit wiring or installation error in SV41 SV42 or SV43 65 Check code Main remote controller Outdoor 7 segment display Check code Sub code Location of detection Description System status Error detection condition s Check items locations P04 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side P04 IPDU Activation of high pressure SW All stop High pressure SW is activated Check
112. rs in group control are displayed successively In this time the fan of the selected indoor unit only turns on Using the temperature setup GO button specify the CODE No 7 Using the timer time button select the SET DATA At shipment 2 7 The setup data are as follows SET DATA Handling of operation of air to air heat exchanger or ventilating fan Unavailable At shipment Available SET Push button OK if display goes on To change the selected indoor unit go to the procedure 2 To change the item to be set up go to the procedure 3 TEST Pushing returns the status to the usual stop status 2 Wiring Relay DC 12V procured locally Corresponds to the relay up to one thatthe rated current Corresponds up to a relay in which rated current of the operation coil is approx 75mA of the operation coil is approx 75mA Other type models Correspond up to a relay in which rated current of the CN32 n Outside control operation coil is approx 16mA Does not correspond to a FAN DRIVE gt input of fan terminal block type relay on the market 2P WHI To terminal Indoor control P C board Note Determine the cable length between the indoor control P C board and the relay within 2m 34 B Leaving ON prevention control Function e This function controls the indoor units individually It is connected with cable to the control P C board of the in
113. splayed The fan of the second indoor unit operates and the flap starts swinging if any 79 UNIT LOUVER 2 Every pushing gt button button left side the indoor unit address in the group are displayed succes sively amp Specify the indoor unit No to be replaced 3 Using the set temperature buttons the CODE No DN can be moved up and down one by one 4 First change the CODE No DN from Z to amp Setting of filter sign lighting time Make a note of the set data displayed in this time 5 Next change the CODE No DN using the set temperature buttons Also make a note ofthe set data 6 Repeatitem 5 and made a note of the important set data as shown the below table Uf to HA are provided in the CODE No DN On the way of operation DN No may skip 7 After finishing making a note push e button to return to the usual stop status 4 Approx 1 minute is required to be able to use the remote controller Minimum requirements for CODE No Contents Indoor unit capacity Refrigerant line address Indoor unit address Group address Capacity of the indoor unit is necessary to set the revolutions of the fan Procedure2 Replacement of service P C board 1 Replace the P C board with a service P C board In this time setting of jumper line cut or setting of DIP switch on the former P C board should be reflected on the service P C board Refer to t
114. switch FS 0218 102 Pulse motor EFM MD12TF 1 Pulse motor valve EFM 25YGTF 1 EFM 40Y GTF 1 Reactor 43 22 Lead wire length 24 3 in 618mm TC1 sensor 04 Lead wire length 47 2 in 1200mm Vinyl tube Blue TC2 sensor 06 Lead wire length 47 2 in 1200mm Vinyl tube Black sensor 06 Lead wire length 47 2 in 1200mm Vinyl tube Red Model 0244BH2UL 0304BH2UL 0364BH2UL 0424BH2UL 0484BH2UL Fan motor MF 240U 150 2A Drain pump motor ADP 1406 Float switch FS 0218 102 Pulse motor EFM MD12TF 1 Pulse motor valve EFM 40Y GTF 2 EFM 60Y GTF 1 Reactor 43 22 Lead wire length 24 3 in 618mm TC1 sensor 04 Lead wire length 47 2 in 1200mm Vinyl tube Blue TC2 sensor 06 Lead wire length 47 2 in 1200mm Vinyl tube Black TCJ sensor 06 Lead wire length 47 2 in 1200mm Vinyl tube Red 5 REFRIGERATING CYCLE DIAGRAM Liquid side Gas side Capillary tube Air heat exchanger atindoor side Pulse Motor i Valve PMV Sensor TC2 Sensor TA Fan motor i Functional part name Functional outline Pulse Motor Valve Connector CN082 6 Blue 1 Controls super heat in cooling operation 2 Controls under cool in heating operation 3 Recovers refrigerant oil in cooling operation 4 Recovers refrigerant oil in heating operation
115. t OFF OFF ON ON External static 0 008 psi 55 Pa pressure Default 0 013 psi 0 017 psi 0 006 psi 90 Pa 120 Pa 40 Pa Setup at shipment Linked operation of ON with operation of indoor unit and OFF with stop The setup of single operation by FAN button on remote controller is executed from remote controller DN 31 Start stop input for HA J01 In place Removed Pulse input factory default Step input 0 V COM Remote controller disabling input Enables disables start stop control via remote controller In operation output ON during operation HA answerback signal DC 12 V COM Alarm output DC12 V COM ON while alarm ON Defrost output ON during defrosting of outdoor unit Thermo ON output ON when Real thermo ON Comp ON Cooling output ON when operation mode is cooling line Cool Dry Cooing Heating AUTO cooling Heating output ON when operation mode is heating line Heat Cooling Heating AUTO heating Fan output DC5 V COM External error input Check mode input OV Display mode input OV Demand input OV 26 ON when indoor fan is ON Generates test code L30 and automatically shuts down air conditioner only if condition presists for 1 minute DN 2A 2 at shipment from factory This check is used for operation check of indoor unit The specified opera
116. t have had the original address set automatically This procedure must be done while the units are not operating 1 SET TEST Simultaneously push and hold the SET amp CL and TEST buttons for more than 4 seconds lf there are 2 or more units in a group the first UNIT No indicated is the header unit Push the left end of the UNIT LOUVER button repeatedly to select an indoor unit address to change If 2 or more units are controlled in a group the fan and louvers of the selected unit will be energized Push the TEMP C2 buttons repeatedly to select 7for CODE No Push the TIME buttons repeatedly to change the value indicated in the SET DATA sec tion Push the SET button to save address 4 Push left and of the UNIT LOUVER button repeatedly to select another indoor unit addresses to change Repeat steps 4 through 6 to continue changing indoor unit address and make each of them unique Push the left end of the UNIT LOUVER 2 button to review confirm the revised ad dresses If the addresses have been changed correctly push the TEST 5 button to finish proce dure CODE No B How to change all indoor addresses from an arbitrary wired remote controller Itis possible when setting has finished by automatic addresses Contents The indoor unit addresses in each identical refrigerant piping line can
117. t to 86 F 30 C Then repeat the procedure 4 5 4 5 After approx 10 seconds all the display lamps on the sensor part of wireless remote controller Operation G reen Timer Green and Ready Y ellow flash and the air conditioner starts operation If the lamps do not flash repeat the procedure 2 and after Be sure to set the air speed to High After the test operation push Start Stop button to stop the operation 3 4 5 6 2 7 28 B Check function for operation of indoor unit Functions at indoor unit side This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit This function can be used regardless of operation or stop of the system However if using this function for a long time a trouble of the equipment may be caused Limit using this function within several minutes How to operate 1 Short circuit CHK pin CN71 on the indoor P C board The operation mode differs according to the indoor unit status in that time Normal time Both float SW and fan motor are normal Abnormal time Either one of float SW or fan motor is abnormal 2 Restricted to the normal time if short circuiting DISP pin CN72 on the indoor P C board in addition to short circuit of CHK pin CN71 on the indoor P C board the minimum opening degree 30pls can be setto the indoor PMV only When op
118. tact for operation error display Contact capacity Below Max AC240V 0 5A Indoor control P C board Remote location ON OFF control box TCB IFCB 4UL ON OFF serial signal input COM Operation signal output seeded gt Error signal output Power supply 208 230 1 60 33 Ventilating fan control from remote controller Function The start stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system The fan can be operated even if the indoor unitis not operating Use a fan which can receive the no voltage A contact as an outside input signal n a group control the units are collectively operated and they can not be individually operated 1 Operation Handle a wired remote controller in the following procedure Use the wired remote controller during stop of the system Be sure to set up the wired remote controller to the header unit Same in group control In a group control if the wired remote controller is set up to the header unit both header and follower units are simultaneously operable SET TEST l Push concurrently 5 2 buttons for 4 seconds or more 2 5 6 The unit No displayed firstly indicates the header indoor unit address in the group control In this time the fan of the selected indoor unit turns on UNIT LOUVER Every pushing gt button button at left side the indoor unit numbe
119. the previous memorandum L 8 Then repeat the procedure 6 and 7 9 After completion of setup push e button to return the status to the usual stop status 5 In a group operation turn off the power supply once return the group wires between indoor units and CN41 connectors as before and then turn on power of all the indoor units Approx 1 minute is required to be able to use of the remote controller L to Aare provided in the CODE No DN on the way of operation DN No may skip When data has been changed by mistake and O button has been pushed the data can be returned to the data before change by pushing button if the CODE No DN was not yet changed 82 Table 2 CODE No table Please record the objective unit data at field Filter sign lighting time At shipment 0002 2500 hour Dirty state of filter 0000 Standard Central control address 0099 Unfixed Heating suction temp shift 0002 3 6 F 2 C PRE DEF indication selection 0000 Standard Cooling only 0000 Heat pump Type Be sure to set as 0004 0004 Medium static ducted type Indoor unit capacity See below table According to capacity type Refrigerant line address 0099 Unfixed Indoor unit address 0099 Unfixed Group address 0099 Unfixed Automatic restart from power cut 0001 Available Option input selection CN80 0002 Exte
120. tion such as indoor fan H drain pump ON etc is executed without communication with outdoor unit or remote controller Display mode communication is enabled by indoor unit and remote controller only When power supply is turned on Timer short Usual Indoor unit forced thermo OFF operation 7 2 Functions attest run B Cooling Heating test run check The test run for cooling heating can be performed from either indoor remote controller or outdoor interface P C board 1 Start Finish operation of test run Test run from indoor remote controller Wired remote controller Refer to the below item of Test run of the wired remote controller Wireless remote controller Refer to the next page item of Test run of the wireless remote controller In case of wired remote controller lt RBC AMT32UL gt 000000 h TEMP 5 ON OFF 2 FILTER RESET TEST SWING FIX UNIT LOUVER OO 9 5 L Procedure Operation contents Push TEST button for 4 seconds or more TEST is displayed atthe display part and the mode enters in TEST mode Push ON OFF button Change the mode from COOL to HEAT using MODE button Do notuse MODE button for other mode except COOLY HE AT modes The temperature cannot be adjusted during test run The error detection is performed as usual After test run push
121. to IGBT TH is overheated Check power supply voltage Check outdoor fan system error Check heat sink cooling duct for clogging Check IGBT and heat sink for thermal performance for faulty installation e g mounting screws and thermal conductivity Check for defect in A3 IPDU faulty IGBT built in temperature sensor TH P10 Detected indoor address P10 Indoor unit Indoor overflow error All stop Float switch operates Float switch circuit is open circuited or disconnected at connector Check float switch connector Check operation of drain pump Check drain pump circuit Check drain pipe for clogging Check for defect in indoor P C board P12 Indoor unit Indoor fan motor error Stop of corresponding unit Motor speed measurements continuously deviate from target value Overcurrent protection is activated Check connection of fan connector and wiring Check for defect in fan motor Check for defect in indoor P C board Check impact of outside air treatment OA In the case of incorrect duct setting performed at installation or if an access panel for the maintenance is removed while indoor unit is in operation 66 MG CTT Magnet contactor Check code Main remote controller Outdoor 7 segment display Check code Sub code Location of detection Description S
122. tor thermal relay P10 P10 Detected indoor unit No Indoor overflow error Float switch has been activated Indoor DC fan error e g overcurrent or lock up is detected In the case of incorrect duct setting P12 E ALT Indoor DC fan error performed at installation or if an access panel for the maintenance is removed while indoor unit is in operation P31 e Other indoor unit error MEORUM due to header nit 46 Error detected by main remote controller Check code Display of receiving unit Main remote controller Outdoor 7 segment display Indicator light block Sub code Operation Timer Ready Flash Typical fault site Description of error No master remote controller Signals cannot be received from indoor unit E01 e faulty remote controller master remote controller has not been set communication reception including two remote controller control Faulty remote controller T E02 e communication transmission Signals cannot be transmitted to indoor unit Both remote controllers have been set as Duplicated master remote master remote controller in two remote E09 amp controller control alarm and shutdown for header unit and continued operation for follower unit Error detected by central control device Check code Display of receiving unit TCC LINK central Outd
123. ts Fan guard TCB IG211BUL Note 1 Non attached filter 2 The actual values in an external opeating environment are generally higher than the indicated values due to the contribution from ambient noise 28 peoejdei eq 1ouue2 eu siwu ulO Jayy Buruoejep 104 peuinbe 0 01 5 0p eoeds peumnbei s g uod eui Jo eu 18i 1no y uod xoeuo Joy eur eoejdag x edid jueieBuje pue adid urejp eoujoeje eui Bururejureui 10 uod 198 y 08 2721 se3oN d exeiul 1 pun Jo eseo U Ly peurejureui eq jouueo Aay sIwu8ulO Iolouu eui Bururejureui yod Buluado e jeg y Aj e20 pue ue peddinbe jou s 1 au x peoejdeJ eq uod 13414 eui Plone adid urap jueieBujei eui ueuM x 49A09 uq ued ureiq 009 9 z 1e y 096 9 8 Bulu3ene 10 pasinbes eoeds ezis Butte 0s1 6 S 009 9 c 1e eu 10 eoeds aD r 009 9 z ezis
124. tton The display changes from flashing to steady To change the selected indoor unit go back to step 2 To change the selected function go back to step 3 6 When the button is pushed the system returns to normal off state 30 Function CODE No DN Code Table Includes All Functions Needed to Perform Applied Control on Site DN Item Descrip tion At shipment Filter display delay timer 0000 None 0001 150H According to type 01 0002 2500H 0003 5000H 0004 10000H 02 Dirty state of filter 0000 Standard 0000 Standard 0001 High degree of dirt Half of standard time 03 Central control address 0001 No 1 unit to 0064 No 64 unit 0099 Unfixed 0099 Unfixed 04 Specific indoor unit 0000 No priority 0001 Priority 0000 No priority priority Heating temp shift 0000 No shift 0001 1 C 1 8 F 0002 2 C 3 6 F 06 0002 2 C 3 6 F to 0010 10 C 18 F Floor type 0000 0 C Up to 6 recommended Od Existence of AUTO 0000 Provided 0001 Not provided mode 0001 Not provided Automatic selection from connected outdoor unit OF Cooling only 0000 Heat pump 0000 Heat pump 0001 Cooling only No display of AUTO HEAT 10 Type 0004 Medium static ducted type 0004 Medium static ducted type 11 Indoor unit capacity 0000 Unfixed 0001 to 0034 According to capacity type 12 Line address 0001 No 1 unit to 0030 No 30 unit 0099 Unfixed 13 Indoor unit ad
125. ure sensor TS1 has F12 _ F12 O ALT eer sensor TS1 been open short circuited Outdoor temperature s ad Wiring error in outdoor temperature sensors TE1 F15 F15 ALT sensor TE1 TL wiring TL has been detected error Outdoor pressure sensor Wiring error in outdoor pressure sensors Pd Ps B Ps wiring error as been detected FIG F6 O JALT pa P has been detected Outdoor discharge Outdoor discharge temperature sensor TD3 has F22 _ F22 O ALT temperature sensor TD3 been open short circuited F23 F23 O Sensor PS Output voltage of low pressure sensor Ps is zero j Output voltage of high pressure sensor Pd is zero F24 F24 O ALT m pres r sensor Pd or provides abnormal readings when compressors have been turned off Outdoor EEPROM is faulty alarm and shutdown F31 F31 O SIM Outdoor EEPROM error forheaderunitand continued operation for follower unit Outdoor discharge Wiring installation error or detachment of outdoor H05 _ H05 temperature sensor TD1 discharge temperature sensor TD1 has been wiring error detected H06 E H06 Activation of low pressure Low pressure Ps sensor detects abnormally low e e protection operating pressure Temperature sensor for oil level detection TK1 5 7 e protection detects abnormally low oil level 01 TK1 sensor error 02 TK2 sensor error Error in temperature 03
126. us returns to the usual stop status 3 Wiring Relay procured locally i77777777777 n the figure the contact indicates a Status that the card is taken out Indoor control P C board Powersupply 7777777777 7 Outside contact Card switch box etc Procured locally Note Determine the cable length between the indoor control P C board and the relay within 2m B Power peak cut from indoor unit When the relay is turned on a forced thermostat OFF operation starts Wiring example Relay procured locally CN73 Note Determine the cable length between the indoor or EXCT 2P plug RED Relay coil signal outdoor control P C board and the relay within 2m Indoor control P C board 35 B Address setup Manual setting from Wired remote controller In case that addresses of the indoor units will be determined prior to piping work after wiring work Setan indoor unit per a remote controller Example of 2 lines cabling Real line Wiring Broken line Refrigerant pipe Turn on power supply 1 2 l Push O amp buttons simultaneously for 4 seconds or more 2 Line address Using the temperature setup buttons set to the CODE No 3 ing ti Line add 1 using timer time QO buttons NU EE p 73 set the line address Group address
127. wer supply noise Check for defect in outdoor P C board I F H01 H01 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU Compressor breakdown All stop Inverter current detection circuit detects overcurrent and shuts system down Check power supply voltage AC208 220V 10 Check for defect in compressor Check for possible cause of abnormal overloading Check for defect in outdoor P C board A3 IPDU H02 H02 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU Compressor error lockup MG CTT error All stop Overcurrent is detected several seconds after startup of inverter compressor Check for defect in compressor Check power supply voltage AC208 220V 10 Check compressor system wiring particularly for open phase Check connection of connectors terminals on A3 IPDU P C board Check conductivity of case heater Check for refrigerant entrapment inside compressor Check for defect in outdoor P C board A3 IPDU Check outdoor MG CTT H03 H03 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU Current detection circuit error All stop Current flow of at least specified magnitude is detected despite inverter compressor having been shut turned off Check current detection circuit wiring Check defect in outdoor P C board A3 IPDU H05 H05 VF TD1 s
128. with the refrigerant abnormal high pressure generates in the refrigerating cycle resulted in cause of injury due to breakage After installation work check the refrigerant gas does not leak If the refrigerant gas leaks in the room poisonous gas generates when gas touches to fire such as fan heater stove or cocking stove though the refrigerant gas itself is innocuous Never recover the refrigerant into the outdoor unit When the equipment is moved or repaired be sure to recover the refrigerant with recovering device The refrigerant cannot be recovered in the outdoor unit otherwise a serious accident Such as breakage or injury is caused Assembly C abling After repair work surely assemble the disassembled parts and connect and lead the removed wires as before Perform the work so thatthe cabinet or panel does not catch the inner wires If incorrect assembly or incorrect wire connection was done a disaster such as a leak or fire is caused at user s side After the work has finished be sure to use an insulation tester set 500V Megger to check the resistance is 2MQ or more between the charge section and the non charge metal section Earth position If the resistance value is low a disaster such as a leak or electric shock is caused at user s Insulator check side When the refrigerant gas leaks during work execute ventilation If the refrigerant gas touches to a fire poisonous gas generates A case of leakage o
129. ystem status Error detection condition s Check items locations P13 P13 VF Outdoor liquid backflow detection error All stop During cooling operation When system is in cooling operation high pressure is detected in follower unit that has been turned off During heating operation When system is in heating operation outdoor PMV 1 or 2 continuously registers opening of 100p or less while under SH control Check full close operation of outdoor PMV 1 2 4 Check for defect in Pd or Ps sensor Check gas balancing circuit SV2 for clogging Check balance pipe Check SV3B circuit for clogging Check defect in outdoor P C board I F Check capillary of oil separator oil return circuit for clogging Check for leakage of check valve in discharge pipe convergent section P15 P15 01 TS condition VF Gas leakdetection TS1 condition All stop Protective shutdown due to sustained suction temperature at or above judgment criterion for at least 10 minutes is repeated four times or more TS error judgment criterion In cooling operation 140 F 60 C In heatling operation 104 F 40 C Check for insufficiency in refrigerant quantity Check outdoor service valves gas side liquid side to confirm full opening Check PMVs PMV1 2 for clogging Check resistance characteristics of TS1 sensor Check for defect in 4 way valve Check SVA circuit for leakage

VRF Medium Static Ducted Service Manual A11-011

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