Mitsubishi PUHZ-RP140YHA Service Manual

SERVICE MANUALSPLIT-TYPE, HEAT PUMP AIR CONDITIONERSCONTENTS1. REFERENCE MANUAL··································22. SAFETY PRECAUTION················

105 DATA5-1. REFILLING REFRIGERANT CHARGE (R410A : kg)5-2. COMPRESSOR TECHNICAL DATAPiping length (one way)10m20m30m40m50mFactorycharged2.12.13.13.14.

100[Indoor unit – Model setting information] (Request code : 162)Data display00See the table on the right.Display Model setting state Display Model s

10113 DISASSEMBLY PROCEDUREOPERATING PROCEDUREPHOTOSPUHZ-RP35VHA PUHZ-RP50VHA1. Removing the top panel, service panel, front panel and back panel(1) R

102Electrical parts boxController circuitboard (C.B.)Electrical parts box fixingscrewTerminalblock(TB1)OPERATING PROCEDURE PHOTOS4. Removing the therm

103OPERATING PROCEDURE PHOTOS5. Removing the thermistor <Outdoor> (TH7)(1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (S

104OPERATING PROCEDURE PHOTOS8. Removing the four-way valve(1) Remove the service panel. (See photo 2.)(2) Remove the top panel. (See photo 1.)(3) Rem

105OPERATING PROCEDURE PHOTOSPhoto 13Photo 14Motor forcompressor(MC)Valve bedSeparatorSeparatorfixing screwCompressorfixing nutPowerreceiverPowerrecei

106OPERATING PROCEDUREPHOTOS & ILLUSTRATIONPUHZ-RP60VHA PUHZ-RP71VHA1. Removing the service panel and top panel(1) Remove 3 service panel fixing s

107Thermistor <Outdoor 2-phase pipe>(TH6)OPERATING PROCEDURE PHOTOSPhoto 44. Removing the thermistor <Outdoor 2-phase pipe> (TH6)(1) Remov

108OPERATING PROCEDUREPHOTOS7. Removing the solenoid valve coil <Four-way valve> (21S4),linear expansion valve coil (LEV(A), LEV(B)) and solenoi

109OPERATING PROCEDUREPHOTOS10. Removing the bypass valve(1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Rem

111.5m1mMICROPHONEUNITGROUND90807060504030201063 125 250 500 1000 2000 4000 8000APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISENC-60NC-50NC-40NC-30N

110OPERATING PROCEDUREPHOTOS13. Removing the motor for compressor (MC)(1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figu

111OPERATING PROCEDUREPHOTOS & ILLUSTRATIONPUHZ-RP100VHA PUHZ-RP125VHA PUHZ-RP140VHA1. Removing the service panel and top panel(1) Remove 3 servic

112OPERATING PROCEDURE PHOTOSPhoto 44. Removing the thermistor <Outdoor 2-phase pipe> (TH6)(1) Remove the service panel. (See figure 1.)(2) Remo

113Solenoid valve coil<Four-way valve> (21S4)OPERATING PROCEDUREPHOTOS7. Removing the solenoid valve coil <Four-way valve> (21S4),and line

114OPERATING PROCEDUREPHOTOS10. Removing solenoid valve coil <Bypass valve> (SV) and bypass valve(1) Remove the service panel. (See figure 1.)(2

115OPERATING PROCEDUREPHOTOS13. Removing the motor for compressor (MC)(1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figu

116OPERATING PROCEDUREPHOTOS & ILLUSTRATIONPUHZ-RP100YHA PUHZ-RP125YHA PUHZ-RP140YHA1. Removing the service panel and top panel(1) Remove 3 servic

117OPERATING PROCEDUREPHOTOS & ILLUSTRATION4. Disassembling the electrical parts box(1) Disconnect all the connectors on the controller circuit bo

118OPERATING PROCEDUREPHOTOSPhoto 105. Removing the thermistor <Outdoor 2-phase pipe> (TH6)(1) Remove the service panel. (See figure 1.)(2) Remo

119Solenoid valve coil<Four-way valve> (21S4)OPERATING PROCEDUREPHOTOS8. Removing the solenoid valve coil <Four-way valve> (21S4),and line

125-4. STANDARD OPERATION DATATotalElectrical circuitRefrigerant circuitIndoor sideOutdoorsideRepresentative matchingSHFBFWkWModeCapacityInputPLA-RP71

120OPERATING PROCEDUREPHOTOS11. Removing solenoid valve coil <Bypass valve> (SV) and bypass valve(1) Remove the service panel. (See figure 1.)(2

12113. Removing the reactors (ACL1, ACL2, ACL3)(1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figure 1.)(3) Remove the 6

122OPERATING PROCEDUREPHOTOS14. Removing the motor for compressor (MC)(1) Remove the service panel. (See figure 1.)(2) Remove the top panel. (See figu

12314 PARTS LISTSTRUCTURAL PARTSPUHZ-RP35VHAPUHZ-RP50VHAPart No. SpecificationNo.WiningDiagramSymbolRecom-mendedQ,tyPriceUnitAmountPart NameQ,ty/setPU

124STRUCTURAL PARTSPUHZ-RP60VHAPUHZ-RP71VHAPart No. SpecificationNo.WiningDiagramSymbolRecom-mendedQ,tyPriceUnitAmountPart NamePUHZ-RPQ,ty/set60, 71VH

125Part No. Part NameSpecificatioNo.WiningDiagramSymbolRecom-mendedQ,tyQ,ty/setPUHZ-RPVHA YHA100, 125, 14012345678910111213141516171838121111121111111

126FUNCTIONAL PARTSPUHZ-RP35VHAPUHZ-RP50VHA13425 67 89101112131417151618192021222324252627OC344-5.qxp 05.5.26 5:54 PM Page 126

127PricePart No. Part NameSpecificationNo.WiningDiagramSymbolRecom-mendedQ,tyUnitAmountRemarks(Drawing No.)Q,ty/setPUHZ-RP35VHAPUHZ-RP50VHA12345678910

128FUNCTIONAL PARTSPUHZ-RP60VHAPUHZ-RP71VHA16151413212223242925282627491051222013678111718193031OC344-5.qxp 05.5.26 5:54 PM Page 128

129PricePart No. Part NameSpecificationNo.WiningDiagramSymbolRecom-mendedQ,tyUnitAmountRemarks(Drawing No.)Q,ty/setPUHZ-RP60VHA VHA7112345678910111213

13TotalElectrical circuitRefrigerant circuitIndoor sideOutdoorsideRepresentative matchingSHFBFWkWModeCapacityInputPhase , HzVoltsAmperesOutdoor unit P

130FUNCTIONAL PARTSPUHZ-RP100VHAPUHZ-RP125VHAPUHZ-RP140VHA123561029147811131415161718192015212223242526272829303132333435OC344-5.qxp 05.5.26 5:54 PM

131Part No. Part Name SpecificationNo.WiningDiagramSymbolRecom-mendedQ,tyUnitAmountRemarks(Drawing No.)Q,ty/set100 125VHA12345678910111213141516171819

132FUNCTIONAL PARTSPUHZ-RP100YHAPUHZ-RP125YHAPUHZ-RP140YHA12324232221252645678910111213141516171814201927293031323334353628OC344-5.qxp 05.5.26 5:54 P

133Part No. Part Name SpecificationNo.WiningDiagramSymbolRecom-mendedQ,tyUnitAmountRemarks(Drawing No.)Q,ty/set100 125YHA12345678910111213141516171819

HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPANCCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO., LTD.Dis

14TotalElectrical circuitRefrigerant circuitIndoor sideOutdoorsideRepresentative matchingSHFBFWkWModeCapacityInputPLA-RP100AAPLA-RP125AAPLA-RP140AAPLA

156 OUTLINES AND DIMENSIONSService panel for charge plug w 1 In the place where short cycle tends to occur, cooling and heating capacity and power

16Unit : mmPUHZ-RP60VHAPUHZ-RP71VHAOver 10mmFREEOver 500mmOver 100mmOver 10mmOC334-1.qxp 05.5.26 6:09 PM Page 16

1721Handle for movingService panelHandle for movingHandle for movingRear Air IntakeAir intakeRear piping coverFront piping coverSide Air IntakeHandle

187 WIRING DIAGRAMPUHZ-RP35VHA PUHZ-RP50VHAPUHZ-RP60VHA PUHZ-RP71VHA123456OFFON35VMODELSW61 MODEL SELECT2 RP60/71V onlySW1012OFFON123456OFFON50V12OFFO

19PUHZ-RP100VHA PUHZ-RP125VHA PUHZ-RP140VHATB1MCMF1,MF221S463H63LTH3TH4TH6TH7TH8LEV-A,BDCL52CTerminal Block (Power Supply, Indoor/Outdoor )Motor for C

21REFERENCE MANUALModel name Service Ref.ServiceManual No.PLA-RP35/50/60/71AA PLA-RP35/50/60/71AA.UK OC335PLA-RP100/125/140AA PLA-RP100/125/140AA.UKPL

20PUHZ-RP100YHA PUHZ-RP125YHA PUHZ-RP140YHATB1MCMF1,MF221S463H63LTH3TH4TH6TH7LEVACL1~ACL4Terminal Block (Power Supply )TB7 Terminal Block (M-NET conne

218 WIRING SPECIFICATIONSOutdoor unit modelOutdoor unit power supplyOutdoor unit input capacity *1Main switch (Breaker)Outdoor unit power supplyOutdoo

22The following connection patterns are available.The outdoor unit power supply patterns vary on models.1:1 System<For models without heater>* T

238-3. INDOOR – OUTDOOR CONNECTING CABLEThe cable shall not be lighter than design 245 IEC or 227 IEC.w The Max. cable length may vary depending on th

248-4. M-NET WIRING METHOD(Points to notice)(1) Outside the unit, transmission wires should stay away from electric wires in order to prevent electrom

258-4-3. Regulations in address settingsIn case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the

269 REFRIGERANT SYSTEM DIAGRAMPUHZ-RP60VHAPUHZ-RP71VHAPUHZ-RP35VHAPUHZ-RP50VHAThermistor TH7(Outdoor)Heat exchangerRefrigerant GAS pipeconnection(1/2F

27PUHZ-RP100VHA PUHZ-RP100YHAPUHZ-RP125VHA PUHZ-RP125YHAPUHZ-RP140VHA PUHZ-RP140YHADistributorThermistor TH7(Outdoor)Heat exchangerRefrigerant GAS pip

281. Refrigerant collecting (pump down)Perform the following procedures to collect the refrigerant when moving the indoor unit or the outdoor unit.1Tu

2910 TROUBLESHOOTING<Error code display by self-diagnosis and actions to be taken for service (summary)>Present and past error codes are logged

32 SAFETY PRECAUTIONCautions for units utilizing refrigerant R410A2-1. CAUTIONS RELATED TO NEW REFRIGERANTUse new refrigerant pipes.Make sure that the

30[TEST] buttonPipe (liquid) temperatureDisplays the remainingtest run time."TEST RUN" and the currently selectedoperation mode are displaye

31ON/OFFTEMPFANVANEMODECHECKLOUVERTEST RUN AUTO STOP AUTO STARThminTEST RUNRESETSETCLOCK75623,4Test run [for wireless remote controller]Measure

3210-3. HOW TO PRECEED "SELF-DIAGNOSIS"10-3-1. When a Problem Occurs During OperationIf a problem occurs in the air conditioner, the indoor

33Transmission data from remote controllerTransmission data on transmission pathWhen the number of data errors is "02":D Press the ON/OFF bu

34[Procedure]1. Press the CHECK button twice.2. Press the temperaturebuttons.3. Point the remote controller at the sensor on the indoor unit andpress

35[Output pattern A] Errors detected by indoor unit[Output pattern B]E9*1 If the beeper does not sound again after the initial two beeps to confirm th

3610-4. SELF-DIAGNOSIS ACTION TABLE<Abnormalities detected when the power is put on>(Note 1) Refer to indoor unit section for code P and code E.

37Error CodeMeaning of error code and detection method Judgment and actionEb(6845)Mis-wiring of indoor/outdoor unit connecting wire (converse wiring o

38<Abnormalities detected while unit is operating>Error CodeMeaning of error code and detection method Judgment and actionU1(1302)Abnormal high

39ThermistorsOpen detection Short detectionSymbolNameTH3TH6TH7TH8– 40: or below– 40: or below– 40: or below– 27: or below90: or above90: or above90: o

4GravimeterUnit[3] Service toolsUse the below service tools as exclusive tools for R410A refrigerant.No. Specifications1 Gauge manifold ·Only for R410

40Error CodeMeaning of error code and detection method CaseJudgment and actionU7(1520)Abnormality of super heat due to lowdischarge temperatureAbnorma

41Error CodeMeaning of error code and detection method Judgment and actionUL(1300)Abnormal low pressure (63L worked)Abnormal if 63L is worked (under-0

42Error CodeMeaning of error code and detection method Judgment and actionE9(6841)Indoor/outdoor unit communicationerror (Transmitting error) (Outdoor

43Error CodeMeaning of error code and detection method Case Judgment and actionA0(6600)Address duplicate definitionThis error is displayed when transm

44A6(6606)Communication error with communica-tion processorDefective communication between unitprocessor and transmission processorNote) The address a

45Error CodeMeaning of error code and detection method Case Judgment and actionA7(6607)5. If displayed address or attribute isFRESH MASTER, Indoor uni

4610-5. TROUBLESHOOTING BY INFERIOR PHENOMENAPhenomenaFactor Countermeasure1. Remote controller display does notwork.2. “PLEASE WAIT” display is remai

47PhenomenaFactorCountermeasure7. Remote controller display works nor-mally and the unit performs heatingoperation, however, the capacitycannot be ful

48How long is “PLEASE WAIT” kept being displayed on the remote controller?6 minutes or more2 minutes or less2 to 6 minutesNONOYESYESAre any error code

49AC 198V to AC 264V?AC 198V to AC 264V?AC 198V to AC 264V?DC 12V to DC 16V?DC 12V to DC 16V?NOYESNOYESNOYESYESNOYESNOCheck the voltage between S1 an

52-2. CHANGED POINT• Precautions when reusing existing R22 refrigerant pipes (1) Flowchart Connecting a new air conditioner1Flaring work should be do

50AC 198V to AC 264V?Are there looseness or disconnection of the indoor/outdoor connecting wire?Is anything displayed?DC 17V to DC 28V?Is “E8” display

51DC 10V to DC 16V?YESNOLightingBlinkingLightingBlinkingCheck the voltage of the terminal block (TB6) of the remote controller.Check the status of the

521 The operating display of remote controller does not come on.Phone Calls From Customers How to Respond Note1 Check if power is supplied to air con

53Phone Calls From Customers How to Respondm Note1 Check the set temperature of remote controller. The outdoor unit cannot be operated if the set

543 Air blows out for a while after HEAT operation is stopped.Phone Calls From Customers How to Respond Note3 This is not a malfunction. The

55Phone Calls From Customers How to Respond NoteThis is not a malfunction.This may occur when the operation gets started in the room of high humidity

56123456M123456MParts nameCheck pointsDisconnect the connector then measure the resistance using a tester. (Surrounding temperature 10:~30:)Disconnect

57Notes · High voltage is applied to the connecter (CNF1, 2) for the fan motor. Give attention to the service. · Do not pull out the connector (CNF1,

5810-7. HOW TO CHECK THE COMPONENTS<Thermistor feature chart>Low temperature thermistors• Thermistor <Outdoor pipe> (TH3)• Thermistor <

59<Output pulse signal and the valve operation>(2) Linear expansion valve operationABCOpenExtra tightning (about 32 pulse)Pulse number500 pulseO

6(2) Cautions for refrigerant piping workNew refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R4

60Main bodyLead wireStopperCoilABe sure to attach thestopper to pipe B.BA(3) How to attach and detach the coil of linear expansion valve (RP35-RP71)&l

61Main bodyLead wireStopperCoilABe sure to attach the stopper.A(4) How to attach and detach the coil of linear expansion valve (RP100-RP140)<Compos

6210-8. EMERGENCY OPERATION (1) When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor

63(5) Operation data during emergency operationDuring emergency operation, no communication is performed with the indoor unit, so the data items neede

6410-9. TEST POINT DIAGRAMOutdoor controller circuit boardPUHZ-RP35/ 50/ 60/ 71/ 100/ 125/ 140VHAPUHZ-RP100/ 125/ 140YHACommunicationpower supply ZD71

65Outdoor noise filter circuit boardPUHZ-RP35VHAPUHZ-RP50VHALO, NOVoltage of 220-240V AC is output. (Connect to the ACL)CN52C52C relay signal(Connect

66Outdoor noise filter circuit boardPUHZ-RP60VHAPUHZ-RP71VHALO, NOVoltage of 220-240V AC is output.(Connect ACL)CN52C52C relay signal(Connect to the o

67CNAC1, CNAC2220-240V AC(Connect to theoutdoor controllercircuit board(CNAC))EIConnect to the earthLI, NIVoltage of 220-240V AC is input(Connect to t

68Outdoor noise filter circuit boardPUHZ-RP100YHAPUHZ-RP125YHAPUHZ-RP140YHALI1, LI2, LI3, NIPOWER SUPPLYLI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V inputL

CN2Connect to the outdoor controller circuit board (CN2)1-5:Outdoor power circuit board ➔ Transmitting signalto the outdoor controller circuit board (

73 FEATURESCHARGELESS SYSTEMPRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.(Max.30m(PUHZ-RP35~RP140))The refrigerant circuit with L

70Outdoor power circuit boardPUHZ-RP100VHAPUHZ-RP125VHAPUHZ-RP140VHATABP1Connect to 52CTABP2/SC-P2Connect to thereactor (DCL)CN4Connect to theoutdoor

71Brief Check of POWER MODULEW Usually, they are in a state of being short-circuited if they are broken.Measure the resistance in the following points

72Outdoor converter circuit boardPUHZ-RP100YHAPUHZ-RP125YHAPUHZ-RP140YHAL1-A2, L2-A2, L3-A2Connect to the ACL1, ACL2, ACL3CN7Connect to theoutdoor pow

73SwitchTypeofswitchDipswitchSW112No.Function Effective timingAction by the switch operationCompulsory defrosting Start NormalWhen compressor is worki

74(2) Function of connectors and switchesCN31TypesConnectorSwitchFunction Effective timingConnectorSW6SW10SW6-1SW6-2SW6-3SW6-4SW6-5SW6-6SW10-1SW10-2St

75<Display function of inspection for outdoor unit>The blinking patterns of both LED1(green) and LED2(red) indicate the types of abnormality whe

76U2U7U1U8UFUPUHU6U3U4U5U9P1P2P9P4P5P6P8Indication ErrorErrorcodew1Outdoor controller boardContents Inspection methodLED1 (Green)LED2 (Red)3 blinking

77<Outdoor unit operation monitor function>[When option part ‘A-Control Service Tool(PAC-SK52ST)’ is connected to outdoor controller board(CNM)]

78SW2 setting1ON23456Display detailExplanation for display UnitPipe temperature / Liquid(TH3)– 40~90– 40~90(When the coil thermistor detects 0: or bel

79SW2 setting1ON23456Display detailExplanation for display UnitPipe temperature / Liquid(TH3) on erroroccurring– 40~90– 40~90(When the coil thermistor

84 SPECIFICATIONSAAkWWkWK/min(CFM)dBdBmm(in.)mm(in.)mm(in.)kg(lbs)kg(lbs)Lmm(in.)mm(in.)Power supply (phase, cycle, voltage)Running currentMax. curren

80SW2 setting1ON23456Display detailExplanation for displayUnitCapacity setting displayDisplayed as an outdoor capacity code.Codedisplay1ON234561ON2345

811ON23456°CDischarge super heat. SHd0~255Cooling = TH4-TH6Heating = TH4-TH50~255(When the temperature is 100°C or more, hundredsdigit, tens digit and

82SW2 settingDisplay detailExplanation for display Unit1ON23456%Capacity save0~100When air conditioner is connected to M-NET and capacity save mode is

83SW2 settingDisplay detailExplanation for display Unit1ON23456PulseLEV-A opening pulse on error occurring0~4800~480(When it is 100 pulse or more, hun

84SW2 settingDisplay detailExplanation for display Unit:0~255(When the temperature is 100°C or more, hundredsdigit, tens digit and ones digit are disp

8511 FUNCTION SETTINGFunction SettingsNo.ModeNo.SettingInitial setting (Factory setting)- : Not available4-WaycassetteCeilingconcealedCeiling suspende

866 Select mode No. 02 (room temperature detection position).7 Select setting No. 03 (remote controller fixed). (Use F and G.)8 Enter the sett

87[Operating Procedure]1 Check the setting items provided by function selection.If settings for a mode are changed by function selection, the function

88By setting unit number with the button, specified indoor unit starts performing fan operation. Detect which unit is assigned to which numbe

8911-2. FUNCTION SELECTION OF REMOTE CONTROLLERThe setting of the following remote controller functions can be changed using the remote controller fun

9AAkWWkWK/min(CFM)dBdBmm(in.)mm(in.)mm(in.)kg(lbs)kg(lbs)Lmm(in.)mm(in.)Power supply (phase, cycle, voltage)Running currentMax. currentExternal finish

90OFFon1on2OFFONOFFONOFFOFFCALL-ONOFFONOFF:°FPAR-21MAAON/OFF FILTERCHECKOPERATIONCLEARTESTTEMP.MENUBACK DAYMONITOR/SETCLOCKON/OFFFEGCDHBAIGGGGGGEEGGGG

9112MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER12-1. HOW TO "MONITOR THE OPERATION DATA"• Turn on the [Monitoring the operation

9212-2. REQUEST CODE LIST* Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed.Reques

93Request codeRequest contentDescription(Display range)Unit Remarks50515253545556575859606162636465666768697071727374757677787980818283848586878889909

94Request codeRequest contentDescription(Display range)Unit Remarks10310410510610710810911011111211311411511611711811912012112212312412512612712812913

95Request codeRequest contentDescription(Display range)Unit Remarks153154155156157158159160161162163164165166167~189190191192~7647657667670 – 99990 –

96Frequency control state 2DisplayDischarge temperatureCondensation temperatureAnti-freezeHeat sink temperatureoverheat preventionoverheat preventionp

97[Fan control state] (Request code :"53")Data displayFan step correction value by heat sink temperature overheat prevention controlFan step

98[Contact demand capacity] (Request code "61")Data display000Setting content[External input state] (Request code "62")Data displa

99SW1, SW2, SW6, SW7123456000000 0000100000 0001010000 0002110000 0003001000 0004101000 0005011000 0006111000 0007000100 0008100100 0009010100 000A110