Mitsubishi Electric PLA-ZRP35 Service Manual Page 1

SERVICE MANUALSPLIT-TYPE, HEAT PUMP AIR CONDITIONERSSPLIT-TYPE, AIR CONDITIONERSNOTE:• This manual describes only service data of the indoor units.• R

10Setting and display items Setting detailsInitial setting DisplaydetailsMake the settings for the remote controller related items as necessary.Clock:

11°F°C°F°CERROR CODEAFTERTIMERTIME SUN MON TUE WED THU FRI SATONOFFHrAFTERFILTERFUNCTIONONLY1Hr.WEEKLYSIMPLEAUTO OFFPAR-21MAAON/OFFFILTERCHECKOPERATIO

12SPECIFICATIONS4kWAkW*/min(CFM)Pa(mmAq)kWdBmm(in.)mm(in.)mm(in.)mm(in.)kg(lbs)Service Ref.ModePower supply (phase, cycle, voltage) Input Running

1313Cooling0.050.45Heating0.040.41Single phase, 50Hz, 230VMunsell 6.4Y 8.9/0.4Plate fin coilTurbo fan (direct) % 10.12017-19-21-23(600-671-740-810)0(d

145NOISE CRITERION CURVESPLA-ZRP35BA.UK PLA-ZRP50BA.UKNOTCH SPL(dB) LINEHigh 31Medium1 29Medium2 28Low 27NOTCH SPL(dB) LINEHigh 32Medium1 31Medium2 29

1515PLA-ZRP125BA.UKNOTCH SPL(dB) LINEHigh 41Medium1 39Medium2 36Low 34OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)PLA-ZRP140BA.UKNOTCH SP

166OUTLINES AND DIMENSIONS37728460()Ceiling holeBranch duct holeDrain pipeconnected to VP-25CeilingGrilleDrain holeModels Auto vane(Air outlet)Air int

17WIRING DIAGRAM7SYMBOL SYMBOLNAME NAMEI.BINDOOR CONTROLLER BOARDFUSE (T6.3AL250V)CONNECTOR (LOSSNAY)CONNECTOR (REMOTE SWITCH)CONNECTOR (HA TERMINAL-A

18Thermistor TH2Pipe temperature(Liquid)Distributorwith strainer (#50)Thermistor TH5(Cond./ Eva.temperature)Thermistor TH1(Room temperature)Refrigeran

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

21REFERENCE MANUALService Ref. Service Manual No.OCH527/OCB527PUHZ-ZRP35/50VKAPUHZ-ZRP60/71VHAPUHZ-ZRP125/140VKAPUHZ-ZRP125/140YKAOUTDOOR UNIT’S SERVI

20• "CHECK" lights, and refrigerant address "00" flashes.• Check that the remote controller's display has stopped before co

21[Output pattern A] Errors detected by indoor unit[Output pattern B]E9*1 If the beeper does not sound again after the initial 2 beeps to confirm the

22•If the unit cannot be operated properly after test run, refer to the following table to find the cause.SymptomCauseWired remote controller LED 1, 2

239-3. SELF-DIAGNOSIS ACTION TABLENote: Refer to the manual of outdoor unit for the details of display such as F, U, and other E.Error CodeAbnormal p

24Error CodeAbnormal point and detection method CauseCountermeasureP6Freezing/overheating protection is oper-ating1 Freezing protection (Cooling mode)

25Error CodeAbnormal point and detection method CauseCountermeasureP9Pipe temperature thermistor/ Condenser-Evaporator (TH5)1 The unit is in 3-minute

26E6E7Error CodeAbnormal point and detection method CauseCountermeasureFbE1orE21 Contact failure, short circuit or, miswiring (converse wiring) of ind

27Error CodeAbnormal point and detection method CauseCountermeasurePL Abnormal refrigerant circuit During Cooling, Dry, or Auto Cooling operation, wh

289-4. TROUBLESHOOTING OF PROBLEMSNote: Refer to the manual of outdoor unit for the detail of remote controller.PhenomenaCauseCountermeasure(1) LED2

29Note: Refer to the manual of outdoor unit for the detail of remote controller.(3) Upward/downward vane perform-ance failure1 The vane is not downw

3SAFETY PRECAUTION2Cautions for units utilising refrigerant R410A2-2. CAUTIONS RELATED TO NEW REFRIGERANT2-1. ALWAYS OBSERVE FOR SAFETYBefore obtainin

309-5. EMERGENCY OPERATION 9-5-1. When wireless remote controller fails or its battery is exhausted 9-5-2. When wired remote controller or indoor uni

319-6. HOW TO CHECK THE PARTSPLA-ZRP35BA.UK PLA-ZRP50BA.UK PLA-ZRP60BA.UKPLA-ZRP71BA.UK PLA-ZRP125BA.UK PLA-ZRP140BA.UKParts name Check pointsDisconne

3201020304050-20-100 1020304050< Thermistor for lower temperature >Temperature ()Resistance (k)<Thermistor Characteristic graph>Room tem

339-7. TEST POINT DIAGRAMIndoor controller boardPLA-ZRP35BA.UK PLA-ZRP50BA.UK PLA-ZRP60BA.UKPLA-ZRP71BA.UK PLA-ZRP125BA.UK PLA-ZRP140BA.UKCN3CTransmis

34SW1Setting by the dip switch and jumper wireFunctionsJumper wireModelsettingsCapacitysettingsPair numbersetting withwirelessremotecontrollerRemarksS

353510SPECIAL FUNCTION10-1. HOW TO PERFORM THE UP/DOWN OPERATION OF THE AIR INTAKE GRILLE10-1-1. Setting up the lowering distance of air intake grille

3610-1-2. How to perform the up/down operation using wireless remote controller1) Ensure that the air-conditioner is not running.2) Press the "Do

3710-1-4. How to perform the up/down operation using wired remote controller (PAR-21MAA)[Note:] General OperationOperation status displayButton to exi

38[Remarks:][Remarks:]Up/down operation modeUp/down operation modeUnit No.Refrigerant address No.Individually-specified up/down operation mode(a) &quo

3910-2. OPERATION (AUTO DESCENDING PANEL: PLP-6BAJ)UP/DOWN Machine 1UP/DOWN Machine 2Wire 1bWire 1aWire 2aWire 2bFig.1Detection switch(1) Normal opera

4GravimeterUnit[3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. Tool name Specifications 1 Gauge manif

4010-3. ELECTRICAL CIRCUIT (Controller board and wiring diagram (Panel))10-3-1. Dip SW 22 type ON1132531111122222CN3G(BLK)CN3G(BLK)CN90(WHT)CN2B(WHT)F

4110-3-3. Check point of trouble<LED (SW22 type) /LED2 (SW2 type) display>Turn OFF : No power supplyBlink : Storage detection switch ON (short)

42Operation patternOC-1OC-2IC-1IC-23(2)3(2)2RC2MainunitSubunitRefrigerant address"01"Refrigerant address"00"Fig. 1[Back-up funct

4310-5-2. How to set rotation function (Back-up function, 2nd stage cut-in function)You can set these functions by wired remote controller. (Maintenan

441 Press the button.2 Select "Service" with the [Cursor] buttons (F1andF2) or the [Page] buttons (F3andF4), and press the button.PAR-30M

45DISASSEMBLY PROCEDURE11OPERATING PROCEDUREPHOTOS & ILLUSTRATIONS1. Removing the air intake grille(1) Slide the knob of air intake grille toward

46OPERATING PROCEDUREPHOTOS & ILLUSTRATIONS9. Removing the pipe temperature thermistor (TH2) and condenser evaporator temperature thermistor (T

47OPERATING PROCEDUREPHOTOS & ILLUSTRATIONS10. Removing the drain pump (DP) and float switch (FS)(1) Remove the drain pan. (See Photo 6)(2) Cut th

HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPANCCopyright 2012 MITSUBISHI ELECTRIC CORPORATIONDistributed in Nov. 2012

5ON/OFF TEMPFANVANETEST RUNAUTO STOPAUTO STARThminLOUVERMODECHECKRESETSET CLOCKMODEL SELECTNOT AVAILABLECHECKTEST RUN°CAMPMAMPMVANE CONTROL buttonUs

6Function buttonsF1 F2 F3 F4Press to turn ON/OFF the indoor unit. ON / OFF buttonWhen the backlight is off, pressing any button turns the backlight on

7FriMode Temp. FanRoomCool AutoSet temp.FriCoolMode Temp. FanAutoSet temp.The main display can be displayed in two different modes: "Full" a

8Not all functions are available on all models of indoor units.Filter informationError informationEnergy savingAuto returnScheduleNight setbackMain me

9Setting and display items Setting detailsVane · Louver · Vent. (Lossnay)Use to set the vane angle.• Select a desired vane setting from f ve different