Mitsubishi Electric PKFY-P50VGM-A Service Manual

TECHNICAL & SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ...22. SAFETY PRECAUTION ...23. PART NAMES AND

10Parts nameService Ref.SymbolTH21TH22TH23TH24FUSEMFMVLEVTB2TB5TB15Resistance 0/15k, 10/9.6k, 20/6.3k, 25/5.4k, 30/4.3k, 40/3.0kResistance

1111OUTLINES AND DIMENSIONS5Min.7250mm or greater with optionaldrain pump installation. Required space (Indoor unit)Min.50Min.220Min.150550mm or great

12WIRING DIAGRAM6<fig.1> PKFY-P·VHM-EModelsSW2P32P40P50123456ONOFFFANCNMF(WHT)163MS3~M1~MVANECN151(WHT)51LEVCN60(YLW)661CNRU(WHT)LDSWE(A)(BLU)6

13TROUBLESHOOTING87REFRIGERANT SYSTEM DIAGRAM8-1. HOW TO CHECK THE PARTSPKFY-P32, 40, 50VHM-E PKFY-P32, 40, 50VHM-ER1PKFY-P32, 40, 50VHM-EPKFY-P32

1401020304050-20-100 1020304050< Thermistor for lower temperature >Temperature ()Resistance (K)4:4365:32:21:1:4:3:2:1Controller boardDrive cir

15Output(Phase)Output{11ON{2ON{3OFF{4OFF2OFFONONOFF3OFFOFFONON4ONOFFOFFON<Output pulse signal and the valve operation>2 Linear expansion valve o

16Notes · High voltage is applied to the connecter (CNMF) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNMF) for

17PKFY-P32, 40, 50VHM-E PKFY-P32, 40, 50VHM-ER1123456789101~612345678Thermistor<Room temperature>positionON OFFFilter clogging detection Pr

18J41, J42WirelessremotecontrollerPair No.Jumper<Initial setting>Pattern ASetting patternJ41 J42Indoor controller jumper wirePair No. of wireles

198-3. TEST POINT DIAGRAM8-3-1. Indoor controller board PKFY-P32VHM-E PKFY-P32VHM-ER1PKFY-P40VHM-E PKFY-P40VHM-ER1PKFY-P50VHM-E PKFY-P50VHM-ER1CN3ACon

22SAFETY PRECAUTION[1] Cautions for service · After recovering all the refrigerant in the unit, proceed to working. · Do not release refrigerant in

1234 56789101234567890 1234567890 123456789ABCDEF0 208-3-3. Address boardPKFY-P32VHM-E PKFY-P32VHM-ER1PKFY-P40VHM-E PKFY-P40VHM-ER1PKFY-P50VHM-E PKFY-

PHOTOS & ILLUSTRATIONSOPERATION PROCEDURE2121PushPushDownBe carefulnot to damage the airflow adjustmentplate with thescrew driver.Corner holeDISAS

PHOTOSOPERATION PROCEDURE223. REMOVING THE INDOOR CONTROLLER BOARD AND WIRELESS CONTROLLER BOARD(1) Remove the front panel. (Refer to 2.)(2) Remove th

PHOTOSOPERATION PROCEDURE235. REMOVING THE NOZZLE ASSEMBLY (with VANE and VANE MOTOR) AND DRAIN HOSE(1) Remove the front panel (Refer to 2.).(2) Remo

PHOTOSOPERATION PROCEDURE9. REMOVING THE HEAT EXCHANGER AND LEV(1) Remove the front panel (Refer to 2.) and the corner panel at right lower side.(2)

33[3] Service tools Use the below service tools as exclusive tools for R407C refrigerant.[2] Refrigerant recharging (1) Refrigerant recharging proce

4Cautions for units utilizing refrigerant R410AStore the piping to be used indoors during installation and both ends of the piping sealed until just b

5[1] Cautions for service (1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in th

63PART NAMES AND FUNCTIONS Indoor unitFilterAir intakeLouverAir outletVane Wireless remote controllerON/OFF TEMPFANVANETEST RUNAUTO STOPAUTO STARThm

77°F°C°F°CERROR CODEAFTERTIMERTIME SUN MON TUE WED THU FRI SATONOFFHrAFTERFILTERFUNCTIONONLY1Hr.WEEKLYSIMPLEAUTO OFFPAR-21MAAON/OFFFILTERCHECKOPERATIO

84.53,90015,4004,0000.030.305.04,30017,1000.030.30*1 Nominal cooling conditionsNote :Indoor :Outdoor :Pipe length :Level difference :27°CDB/19°CWB (81

994.53,90015,4004,0000.040.405.04,30017,1000.030.30*1 Nominal cooling conditionsNote :Indoor :Outdoor :Pipe length :Level difference :27°CDB/19°CWB (8