Mitsubishi City Multi PKFY-P.VHM-E Service Manual

TECHNICAL & SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ... 22. SAFETY PRECAUTION ...33. PART NAMES AN

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

124.53,90015,4004,0000.030.305.04,30017,1000.030.30*1 Nominal cooling conditionsNote :Indoor :Outdoor :Pipe length :Level difference :27°CDB/19°CWB (8

13134.53,90015,4004,0000.040.405.04,30017,1000.030.30*1 Nominal cooling conditionsNote :Indoor :Outdoor :Pipe length :Level difference :27°CDB/19°CWB

14Parts nameService Ref.SymbolTH21TH22TH23TH24FUSEMFMVLEVTB2TB5TB15Resistance 0/15k, 10/9.6k, 20/6.3k, 25/5.4k, 30/4.3k, 40/3.0kResistance

1515OUTLINES AND DIMENSIONS5Min.7250mm or greater with optionaldrain pump installation. Required space (Indoor unit)Min.50Min.220Min.150550mm or great

16WIRING DIAGRAM6<fig.1> PKFY-P·VHM-EModelsSW2P32P40P50123456ONOFFFANCNMF(WHT)163MS3~M1~MVANECN151(WHT)51LEVCN60(YLW)661CNRU(WHT)LDSWE(A)(BLU)6

1717PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2ModelsP32SW2123456ONOFFP40123456ONOFFP50123456ONOFFSYMBOLNAMEI.B INDOOR CONTROLLER BOARDBZ1CN32CN51

18TROUBLESHOOTING87REFRIGERANT SYSTEM DIAGRAM8-1. HOW TO CHECK THE PARTSPKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-EPKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKF

191901020304050-20-100 1020304050< Thermistor for lower temperature >Temperature ()Resistance (K)4:4365:32:21:1:4:3:2:1Controller boardDrive c

21TECHNICAL CHANGESPKFY-P32VHM-ER1 PKFY-P32VHM-ER2PKFY-P40VHM-ER1 PKFY-P40VHM-ER2PKFY-P50VHM-ER1 PKFY-P50VHM-ER21. INDOOR CONTROLLER BOARD (I.B.) has

20Output(Phase)Output{11ON{2ON{3 OFF{4OFF2OFFONONOFF3OFFOFFONON4ONOFFOFFON<Output pulse signal and the valve operation>2 Linear expansion valve

21Notes · 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

22123456789101~612345678Thermistor<Room temperature>positionON OFFFilter clogging detection Provide Not provideFilter cleaning sign 2,500 hr 10

23J41, J42WirelessremotecontrollerPair No.Jumper<Initial setting>Pattern ASetting patternJ41 J42Indoor controller jumper wirePair No. of wireles

248-3. TEST POINT DIAGRAM8-3-1. Indoor controller board PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-EPKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1PKFY

1234 56789101234567890 1234567890 123456789ABCDEF0 258-3-3. Address boardPKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-EPKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PK

PHOTOS & ILLUSTRATIONSOPERATION PROCEDURE26PushPushDownBe carefulnot to damage the airflow adjustmentplate with thescrew driver.Corner holeDISASSE

PHOTOSOPERATION PROCEDURE27273. REMOVING THE INDOOR CONTROLLER BOARD AND WIRELESS CONTROLLER BOARD(1) Remove the front panel. (Refer to procedure 2)(2

PHOTOSOPERATION PROCEDURE285. REMOVING THE NOZZLE ASSEMBLY (with VANE and VANE MOTOR) AND DRAIN HOSE(1) Remove the front panel (Refer to procedure 2)

PHOTOSOPERATION PROCEDURE299. REMOVING THE HEAT EXCHANGER AND LEV(1) Remove the front panel (Refer to procedure 2) and the corner panel at right lowe

32SAFETY PRECAUTIONCAUTIONS RELATED TO NEW REFRIGERANTCautions for units utilizing refrigerant R410ACharge refrigerant from liquid phase of gascylinde

Copyright 2008 MITSUBISHI ELECTRIC CORPORATIONDistributed in Dec. 2012 No. OCH442 REVISED EDITION-BDistributed in Feb. 2009 No. OCH442 REVISED EDITION

4GravimeterUnit[3] Service tools Use the below service tools as exclusive tools for R410A refrigerant.[1] Cautions for service(1) Perform service aft

553PART NAMES AND FUNCTIONS3-1. Indoor unitFilterAir intakeLouverAir outletVane3-2. Wireless remote controllerON/OFF TEMPFANVANETEST RUNAUTO STOPAUT

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