Mitsubishi Electric PUY-A.NHA-BS Manual de servicio

SERVICE MANUALSPLIT-TYPE, HEAT PUMP AIR CONDITIONERSSPLIT-TYPE, AIR CONDITIONERS3 3 2 2 3CONTENTS1. TECHNICAL CHANGES...22. REF

106NOISE CRITERION CURVESPLA-A12BAPLA-A12BA1PLA-A18BAPLA-A18BA1NOTCH SPL(dB) LINEHigh 31Medium1 29Medium2 28Low 27NOTCH SPL(dB) LINEHigh 32Medium1 31M

11PLA-A36BAPLA-A36BA1PLA-A42BAPLA-A42BA1NOTCH SPL(dB) LINEHigh 40Medium1 37Medium2 34Low 32NOTCH SPL(dB) LINEHigh 41Medium1 39Medium2 36Low 3490807060

12INDOOR UNITPLA-A12BA PLA-A18BA PLA-A24BA PLA-A30BA PLA-A36BA PLA-A42BAPLA-A12BA1 PLA-A18BA1 PLA-A24BA1 PLA-A30BA1 PLA-A36BA1 PLA-A42BA17OUTLINES AND

138WIRING DIAGRAMINDOOR UNITPLA-A12BA PLA-A18BA PLA-A24BA PLA-A30BA PLA-A36BA PLA-A42BA<Table 2> SW2 (CAPACITY CODE)ServicePLA-A30BAPLA-A36BAPLA

14INDOOR UNITPLA-A12BA1 PLA-A18BA1 PLA-A24BA1 PLA-A30BA1 PLA-A36BA1 PLA-A42BA1<Table 2>SW2(CAPACITY CODE)ServicePLA-A30BAPLA-A36BAPLA-A42BAPLA-A

15Thermistor TH2Pipe temperature (Liquid)Distributorwith strainer (#50)Thermistor TH5(Cond./ Eva. temperature)Thermistor TH1(Room temperature)Refriger

1610 TROUBLESHOOTINGUnit conditions at serviceError codeActions to be taken for service (summary)The trouble is reoccurring.DisplayedNot displayedJudg

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

18[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

19•If the unit cannot be operated properly after the test run, refer to the following table to find out the cause.SymptomCauseWired remote controller

22REFERENCE MANUALService Ref.PUZ-A18/24/30/36/42NHAPUZ-A18/24/30/36/42NHA-BSPUY-A12/18/24/30/36/42NHA(1)PUY-A12/18/24/30/36/42NHA(1)-BSService Manual

2010-3. SELF-DIAGNOSIS ACTION TABLENote: Refer to the manual of outdoor unit for the details of display such as F, U, and other E.Error CodeA

21Error CodeAbnormal point and detection method CauseCountermeasureP6Freezing/overheating protection is work-ing Freezing protection (Cooling mode)Th

22Error CodeAbnormal point and detection method CauseCountermeasureP9Pipe temperature thermistor / Condenser-Evaporator (TH5) The unit is in 3-minute

23E6 Contact failure, short circuit or, miswiring (converse wiring) of indoor/outdoor unit connecting wire Defective transmitting receiving circuit

24 (For the separate indoor/outdoor unit power sup-ply system) Power supply of 208/230V AC is not supplied to indoor unit. The connectors of the o

25Note: Refer to the manual of outdoor unit for the detail of remote controller.(3)Upward/downward vane performance failure The vane is

2610-5. EMERGENCY OPERATION 10-5-1. When wireless remote controller troubles or its battery is exhausted10-5-2. When wired remote controller or indoo

2710-6. HOW TO CHECK THE PARTSPLA-A12BA PLA-A18BA PLA-A24BA PLA-A30BA PLA-A36BA PLA-A42BAPLA-A12BA1 PLA-A18BA1 PLA-A24BA1 PLA-A30BA1 PLA-A36BA1 PLA-A4

28<Thermistor Characteristic graph>Room temperature thermistor(TH1)Pipe temperature thermistor/liquid(TH2)Condenser/evaporator temperature therm

2910-7.TEST POINT DIAGRAMIndoor controller boardPLA-A12BA PLA-A18BA PLA-A24BA PLA-A30BA PLA-A36BA PLA-A42BAPLA-A12BA1 PLA-A18BA1 PLA-A24BA1 PLA-A30BA1

3SAFETY PRECAUTION3Cautions for units utilising refrigerant R410A3-2.CAUTIONS RELATED TO NEW REFRIGERANTUse new refrigerant pipes.Make sure that the i

30SW1Setting by the dip switch and jumper wireFunctionsJumper wireModelsettingsCapacitysettingsPair numbersetting withwirelessremotecontrollerRemarksS

313111SPECIAL FUNCTIONOperation patternOC-1OC-2IC-1IC-23(2)3(2)2RC2MainunitSubunitRefrigerant address"01"Refrigerant address"00"Fi

3232(1) Request Code ListRotation settingInitialsettingInitialsetting2nd stage cut-in settingSetting contentsSetting No.(Request code)No.7(316)No.8(3

3333(2) Setting method of each function by wired remote controllerB: Refrigerant addressC: Data display areaD: Request code display areaTESTCHECKFILTE

3411DISASSEMBLY PROCEDUREOPERATING PROCEDUREPHOTOS & ILLUSTRATIONS1. Removing the air intake grille(1) Slide the knob of air intake grille toward

35OPERATING PROCEDUREPHOTOS & ILLUSTRATIONS8. Removing the pipe temperature thermistor (TH2) and condenser evaporator temperature thermistor (T

OPERATING PROCEDUREPHOTOS & ILLUSTRATIONS9. Removing the drain pump (DP) and float switch (FS)(1) Remove the drain pan. (See photo 6)(2) Cut the h

4GravimeterUnit[3] Service toolsUse the below service tools as exclusive tools for R410A refrigerant.No. Tool name

54PART NAMES AND FUNCTIONSDrain pipeFilterVaneGas pipeLiquid pipeAir outleti-see sensor(option)Air intake(Intake grille)

6°F°C°F°CERROR CODEAFTERTIMERTIME SUN MON TUE WED THU FRI SATONOFFHrAFTERFILTERFUNCTIONONLY1Hr.WEEKLYSIMPLEAUTO OFFPAR-21MAAON/OFFFILTERCHECKOPERATION

7LWirelessremote controllerON/OFF TEMPFANVANETEST RUNAUTO STOPAUTO STARThminLOUVERMODECHECKRESETSET CLOCKMODELSELECTNOT AVAILABLESWINGCHECKFANTEST

8Service Ref.Power supply (phase, cycle, voltage) Max. Fuse Size Min. Circuit Ampacity External finish (Panel) Heat exchanger Fan Fan (drive) % No.

9UNIT : 840 (33-1/16) PANEL : 950 (37-3/8)UNIT : 840 (33-1/16) PANEL : 950 (37-3/8) UNIT : 298 (11-3/4) PANEL : 35 (1-3/8) UNIT : 25 (55) PANEL :