Mitsubishi City Multi PKFY-P.VBM-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

123-4. Wireless remote controllerON/OFF TEMPFANVANETEST RUNAUTO STOPAUTO STARThminLOUVERMODECHECKRESETSET CLOCKMODEL SELECTNOT AVAILABLECHECKTEST RU

1313*1 Nominal cooling conditionsNote :Indoor :Outdoor :Pipe length :Level difference :27°CDB/19°CWB (81°FDB/66°FWB)35°CDB (95°FDB)7.5 m (24-9/16 ft)0

144-2. ELECTRICAL PARTS SPECIFICATIONSParts nameService ref.SymbolTH21TH22TH23FUSEMFC1MVLEVTB2TB5Resistance 0/15k, 10/9.6k, 20/6.3k, 25/5.4k,

1515M1 M2NL60mm or more for left and left back piping.Terminal blockAir intake(Direction)Terminal block DetailedAddress boardThe first sideThe second

16Mark MeaningLED1Main power supplyMain power supply (indoor unit:220-240V)power on lamp is litFunctionLED on indoor board for serviceONOFF1234MO

1717Mark MeaningLED1Main power supplyMain power supply (indoor unit:220-240V)power on lamp is litFunctionLED on indoor board for serviceONOFF1234

18PKFY-P15VBM-ER3 PKFY-P20VBM-ER3 PKFY-P25VBM-ER3Note1. At servicing for outdoor unit, always follow the wiring diagram of outdoor unit.2. In case of

1919TROUBLESHOOTING87REFRIGERANT SYSTEM DIAGRAM8-1. HOW TO CHECK THE PARTSPKFY-P15VBM-E PKFY-P20VBM-E PKFY-P25VBM-E PKFY-P20VBM-ER1 PKFY-P25VBM-ER1PK

21TECHNICAL CHANGESPKFY-P15VBM-ER2 PKFY-P15VBM-ER3PKFY-P20VBM-ER2 PKFY-P20VBM-ER3PKFY-P25VBM-ER2 PKFY-P25VBM-ER3INDOOR CONTROLLER BOARD (I.B.) has bee

2001020304050-20 -10 0 10 20 30 40 50< Thermistor for lower temperature >Temperature ()Resistance (K)4:4365:32:21:1:4:3:2:1Controller boardDri

21Output(Phase)Output{11ON{2ON{3OFF{4OFF2OFFONONOFF3OFFOFFONON4ONOFFOFFON<Output pulse signal and the valve operation>2 Linear expansion valve o

228-2. FUNCTION OF DIP SWITCH123456789101~412345678910Thermistor<Intake temperature>positionON OFFFilter clogging Provide Not provideFilter sign

23J41, J42WirelessremotecontrollerPair NoJumperPattern ASetting patternJ41 J42Indoor controller jumper wirePair No. of wirelessremote controller *Init

248-3. TEST POINT DIAGRAM8-3-1. Indoor controller board PKFY-P15VBM-E PKFY-P20VBM-E PKFY-P25VBM-E PKFY-P20VBM-ER1 PKFY-P25VBM-ER1PKFY-P15VBM-ER2 PKFY

25Indoor controller board PKFY-P15VBM-E PKFY-P20VBM-E PKFY-P25VBM-E PKFY-P20VBM-ER1 PKFY-P25VBM-ER1PKFY-P15VBM-ER2 PKFY-P20VBM-ER2 PKFY-P25VBM-ER2PK

268-3-2. Indoor power boardPKFY-P15VBM-E PKFY-P20VBM-E PKFY-P25VBM-E PKFY-P20VBM-ER1 PKFY-P25VBM-ER1PKFY-P15VBM-ER2 PKFY-P20VBM-ER2 PKFY-P25VBM-ER2P

1234 56789101234567890 1234567890 123456789ABCDEF0 278-3-2. Indoor power boardPKFY-P15VBM-E PKFY-P20VBM-E PKFY-P25VBM-E PKFY-P20VBM-ER1 PKFY-P25VBM-E

28DISASSEMBLY PROCEDURE91. REMOVING THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATION PLATEWhen there is removing plate(1) Remove the corner b

29293. REMOVING THE INDOOR CONTROLLER BOARD AND INDOOR POWER BOARD(1) Remove the front panel. (Refer to procedure 2)(2) Remove the electrical box cove

32SAFETY PRECAUTIONCautions for units utilizing refrigerant R410ACharge refrigerant from liquid phase of gascylinder.If the refrigerant is charged fro

305. REMOVING THE NOZZLE ASSEMBLY AND DRAIN HOSE(1) Remove the front panel (Refer to procedure 2).(2) Remove the electrical box cover. (See Photo 2)(3

311. REMOVING THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATION PLATEWhen there is removing plate(1) Remove the corner box at right lower side

323. REMOVING THE INDOOR CONTROLLER BOARD AND INDOOR POWER BOARD(1) Remove the front panel. (Refer to procedure 2)(2) Remove the electrical box cover

337. REMOVING THE LINE FLOW FAN AND THE FAN MOTOR(1) Remove the front panel. (Refer to procedure 2)(2) Remove the nozzle assembly. (Refer to procedure

8. REMOVING THE VANE MOTOR(1) Remove the front panel. (Refer to procedure 2)(2) Remove the screw of the electrical parts box cover, and remove the cov

4[1] Cautions for service(1) Perform service after collecting the refrigerant left in the unit completely.(2) Do not release refrigerant in the air.(3

553PART NAMES AND FUNCTIONS3-1. Indoor unitFilterGrilleLouverAir outletAir intakeVaneOCH418C

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