Mitsubishi MSZ-GA22VA Manuale di Servizio

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································22. PART NAMES AND FUNCTIONS······················33. SPECIFICATION····

TROUBLESHOOTING9109-1. Cautions on troubleshooting1. Before troubleshooting, check the following:1) Check the power supply voltage.2) Check the indoor

1121StopperLock.LeftInsert this end first.3. Troubleshooting procedure1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing o

12Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though LED indication listed on the tro

132. Indoor unit failure mode tableNOTE:Blinking patterns of this mode differs from the ones of Troubleshooting check table(9-4.). 12-time flash2.5-se

14StartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from remote controller.OPERATION INDICATORl

15NOTE : When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON

16OPERATION INDICATORNot lightedBlinkingLightedOPERATION INDICATORNot lightedBlinkingLightedNOTE : When the indoor unit has started operation and the

17Check of indoor fan motorAWhen OPERATION INDICATOR lamp flashes 3-time.Indoor fan does not operate.wIf 12 seconds or more passes after EMERGENCY OPE

18Check of remote controller and receiver P.C. board BIndoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remot

19The unit does not operate with the remote controller.Also, OPERATION INDICATOR lamp does not light up by pressing EMERGENCY OPERATION switch.Check o

21TECHNICAL CHANGESMSZ-A09YV - ➔ MSZ-GA22VA -MSZ-A09YV - ➔ MSZ-GA25VA -MSZ-A12YV - ➔ MSZ-GA35VA -E1E1E1E1E1E11. Indication of capacity has been cha

20How to check mis-wiring and serial signal errorDWhen POWER lamp flashes ON and OFF in every 0.5-second.Outdoor unit does not operate.Is there rated

21Check of installation of the horizontal vaneEStartReplace the indoor electronic control P.C. board.Replace the interlock switch(Fan).Is the stopper

22Electromagnetic noise enters into TV sets or radiosFReplace the antennas.Replace the coaxial cable.NoNoNoYesYesNoNoYesYesYesIs the distance between

23Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)]Room temperature thermistor (RT11)Temperature (:)Resistance (k")MSZ-GA22VA - MSZ-GA25VA - MSZ-G

24DISASSEMBLY INSTRUCTIONS10(1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector has the loc

252. Removing the electronic control P.C. board, thepower monitor receiver P.C. board, SW P.C. boardand the terminal block(1) Remove the horizontal v

26OPERATING PROCEDURE PHOTOSPhoto 6Photo 8Screws of theleft side of theheat exchanger4. Removing the horizontal vane motor unit(1) Remove the horizont

27PARTS LIST11MSZ-GA22VA - (WH)MSZ-GA25VA - (WH)MSZ-GA35VA - (WH)11-1. INDOOR UNIT STRUCTURAL PARTSE1E1E1No.Part No.Part nameRemarksSymbolin WiringDia

2811-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTSMSZ-GA22VA - (WH)MSZ-GA25VA - (WH)MSZ-GA35VA - (WH)E1E1E142539ROOM TEMPERATURE THERMISTORVARI

29BEARING MOUNTSLEEVE BEARINGDRAIN HOSENOZZLE ASSEMBLYVANE MOTOR UNIT (HORIZONTAL)INTERLOCK SWITCH(FAN)HORIZONTAL VANEFUSEVARISTORPOWER MONITOR RECEIV

3PART NAMES AND FUNCTIONS2INDOOR UNITMSZ-GA22VA -MSZ-GA25VA -MSZ-GA35VA -E1E1E1Line flow fanAir outletVertical vaneAir inletDisplay sectionFront panel

3012OPTIONAL PARTSModelPart No.E1E1MAC-415FT-EMSZ-GA22VA-MSZ-GA25VA-MSZ-GA35VA-E1Air cleaning filter(Blue bellows type)(1) Remove the catechin air fil

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HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPANCCCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistri

4ACCESSORIES1234567Installation plateInstallation plate fixing screw 4 o 25 mmRemote controller holderFixing screw for 3 3.5 o 1.6 mm (Black)Battery (

5SPECIFICATION3T3.15AL 250VMSBPC20M16 12V DC 250" (at 25˚C)ERZV14D4713PINDOOR UNITItemModelFuse Horizontal vane motorVaristorTerminal blockMSZ-GA

64NOISE CRITERIA CURVES90807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.000

7OUTLINES AND DIMENSIONS5MSZ-GA25VA -E1Unit : mmINDOOR UNIT155 155335 32041.5 21542.52143287.570555555 225 225 or more710090106298102624.5780210 553.5

86WIRING DIAGRAMREFRIGERANT SYSTEM DIAGRAM7MSZ-GA22VA -MSZ-GA25VA -MSZ-GA35VA -E1E1E1IndoorheatexchangerFlared connectionRoom temperaturethermistorRT1

9SERVICE FUNCTIONS88-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATIONA maximum of 4 indoor units with wireless remote controllers can be used in a