Mitsubishi Electric MSZ-G09SV Manual de servicio

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································22. PART NAMES AND FUNCTIONS······················23. SPECIFICATION····

10INDOOR UNITOUTDOOR UNITItemModelModelItemIndoor fan capacitorFuse Vane motorVaristorSolid state relayTerminal blockPower-facrtor capacitor Smoothing

100OPERATING PROCEDURE PHOTOSPhoto 4Photo 6Vane motorsIndoorcoilthermistorPhoto 33. Removing the electrical box(1) Remove the front panel. (Refer to 1

10112-3. MUZ-G09SV - MUZ-G12SV -MUZ-G09SV - MUZ-G12SV -OUTDOOR UNITE2E2E1E1OPERATING PROCEDUREPHOTOS1. Removing the cabinet(1) Remove the screws f

102OPERATING PROCEDUREPHOTOS7. Removing the compressor(1) Remove the service panel, top panel and the cabinet.(Refer to 1)(2) Remove the soundproof fe

10312-4. MUZ-G20SV -OUTDOOR UNITE1OPERATING PROCEDUREPHOTOS1. Removing the back panel(1) Remove the screws fixing the top panel and the top panel. (

104OPERATING PROCEDUREPHOTOS5. Removing the R.V. coil(1) Remove the top panel, front panel and service panel. (Referto 1)(2) Remove the inside and out

105OPERATING PROCEDURE PHOTOS9. Remove the compressor and 4-way valve(1) Remove the top panel, front panel and service panel.(2) Remove the inside and

106PARTS LIST13MSZ-G09SV - (WH) MSZ-G12SV - (WH)MSZ-G09SV - (WH) MSZ-G12SV - (WH)13-1. INDOOR UNIT STRUCTURAL PARTSE2E2E1E1Q'ty/unitE1(WH)E2M

107Q'ty/unitRemarksE1 E2MSZ-G12SV- E1 E2E02 408 302E02 408 509E02 001 504E02 408 702E02 448 235E02 409 041E02 127 382E02 336 385E0

108MUZ-G09SV - MUZ-G12SV -MUZ-G09SV - MUZ-G12SV -E2E2E1E113-5. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS113149654231617871015 1211Part number

109MUZ-G09SV - MUZ-G12SV -MUZ-G09SV - MUZ-G12SV -E2E2E1E113-6. OUTDOOR UNIT ELECTRICAL PARTS121011918234765Part numbers that are circled are not shown

114NOISE CRITERIA CURVES90807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.00

110MSZ-G20SV - (WH)13-7. INDOOR UNIT STRUCTURAL PARTSE1E02 527 970E02 527 234E02 527 000E02 408 142E02 527 067E02 527 010E02 527 100E02

111E02 527 302E02 408 509E02 001 504E02 408 702E02 527 235E02 527 040E02 527 041E02 127 382E02 336 385E02 527 034E02 527 300E02

112MUZ-G20SV -13-11. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTSE1When servicing, cut the tube to the proper length as shown in the REFRIGERAN

113123456789101112131415FIN TEMPERATURE THERMISTORDIODE STACKREACTORCONNECTOR POST ASSYNOISE FILTER P.C. BOARDFUSE (250V/1A)FUSE (250V/3.15A)FUSE (250

114Deodorizing filter (Gray sponge type)13-14. DEODORIZING FILTER● DEODORIZING FILTER removes ammonia and hydrogen sulphide emitted from tobacco, and

115OPTIONAL PARTS1414-3. Drain socketOutdoor unit {33 drain holeSoft vinyl chloride hose of 25mminside diameter. (All of three places)Outdoor unit {33

HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPANCCCopyright 2000 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistri

1290807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BARBAND CENTE

13OUTLINES AND DIMENSIONS5INDOOR UNITOUTDOOR UNITMSZ-G09SV -E1116.581.57867818850165629567 or more100412.542271 4.5231.582 169326 32651895616017.5Air

14MSZ-G12SV -E1116.581.581827885016562956 or more100412.542271 4.5231.582169326 32651895616017.5Air inAir outInsulation [28Drain hose [16(Connected p

15Liquid refrigerant pipe jointRefrigerant pipe (flared) [6.35Service panelGas refrigerant pipe jointRefrigerant pipe (flared)  [9.52 (MUZ-G09SV)Ser

161621958477.5315255.5472.598 17398 173414.5 414.552252537915610681100325Air outAir inInsulation [ 28Drain hose [ 16(Connected part O.D){Liquid line [

17WIRING DIAGRAM6INDOOR UNITMODELS WIRING DIAGRAMPOWERSUPPLYCORD~/N 230V50HzGRN/YLWBLKGRYYLWBRNWHTREDMF1234563SR141321CN121C11HIC1TRANSMV2RT134321CN11

18OUTDOOR UNITBLKR64WHTREDWHTBLU654321X61CN725RT64GRNWHTTAB65CY613C65ORNNWVUR61DS62REDC63DS61BLKF801(-)(+)TAB6312SSR61TAB663LD64ELECTRONIC CONTROL P.C

19OUTDOOR UNITBLKR64WHTREDWHTBLU654321X61CN725RT64GRNWHTTAB65CY613C65ORNNWVUR61DS62REDC63DS61BLKF801(-)(+)TAB6312SSR61TAB663LD64ELECTRONIC CONTROL P.C

2Remote controllerRemote controllerMSZ-G09SV - MSZ-G12SV - E1E1MSZ-G09SV - MSZ-G12SV - E2E2E1MSZ-G20SV - E1GrilleDeodorizing filter(Gray sponge type)A

20INDOOR UNITTBTAB1233REMOTECONTROLLERRECEIVERP.C.BOARDDISPLAYP.C.BOARD102CN101CNREDBLUMV2GRN/YLWFROM OUTDOORUNITCONNECTING12VCN201321BRNLN3230V~F11EL

21REFRIGERANT SYSTEM DIAGRAM7MUZ-G09SV -MUZ-G09SV -E2E1MSZ-G09SV -MSZ-G09SV -E2E1IndoorheatexchangerOutdoorheatexchangerFlared connectionRoom temp

22CompressorDischargetemperaturethermistorRT61R.V. coilheating ONcooling OFFRefrigerant flow in coolingRefrigerant flow in heatingMufflerOutdoorheat e

23ADDITIONAL REFRIGERANT CHARGE (R22:g)Outdoor unitprecharged075200Refrigerant piping length (one way)15m10m7mModel1,550MSZ-G20SV - E1 MUZ-G20SV

24The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions.Since operating condi

25Indoor air Dry-bulb temperaturedifference (degree)Indoor intake air Dry-bulb temperature (:)Outdoor intake air Wet-bulb temperature (:) Outdoor inta

262 Air flow should be set at MAX.3 Operational frequency : 79Hz(MSZ-G09SV)85Hz(MSZ-G12SV)80Hz(MSZ-G20SV)15 20502560307035(˚C) (%)0.40.50.60.70.818

27HEAT operationCondition indoor: Dry bulb temperature 20.0°CWet bulb temperature 14.5°CCondition outdoor: Dry bulb temperature 2,7,15,20.0°CWet bulb

28MSZ-G09SV - : MUZ-G09SV -MSZ-G09SV - : MUZ-G09SV -E2E2E1E1CAPACITY:2.6(KW)INPUT:940(W) SHF:0.68OUTDOOR DB(:)INDOOR INDOOR21 25 27 30DB(:) WB(

29MSZ-G09SV - : MUZ-G09SV -MSZ-G09SV - : MUZ-G09SV -E2E2E1E1CAPACITY:2.6(KW)INPUT:940(W)SHF:0.68OUTDOOR DB(;)INDOOR INDOOR35 40 43 46DB(;) WB(;

3OUTDOOR UNITMUZ-G20SV -E1Air inletAir outletDrain outletPipingDrain hose(back and side)(back and side)Model indicationAir inletAir outletMUZ-G09SV

30MSZ-G12SV - : MUZ-G12SV -MSZ-G12SV - : MUZ-G12SV -E2E2E1E1CAPACITY:3.5(KW)INPUT:1290(W)SHF:0.67OUTDOOR DB(;)INDOOR INDOOR21 25 27 30DB(;) WB(

31CAPACITY:3.5(KW)INPUT:1290(W)SHF:0.67OUTDOOR DB(:)INDOOR INDOOR35 40 43 46DB(:) WB(:)Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF IN

32PERFORMANCE DATA COOL operation Rated frequency 120HzNOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperatureSHC : Sensible

33MSZ-G20SV - : MUZ-G20SV -E1E1PERFORMANCE DATA COOL operation Rated frequency 120HzNOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry

34PERFORMANCE DATA HEAT operationCAPACITY:6.1(KW)INPUT:1930(W)OUTDOOR WB(:)INDOOR-10 -5 0 5 10 15 20DB(:)Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q

35MICROPROCESSOR CONTROL9Signal transmitting sectionOperation display sectionOPERATE /STOP(ON /OFF)buttonOPERATION SELECT buttonFAN SPEED CONTROL butt

36ExamplePrevious operationCOOL mode of “I FEEL CONTROL” orCOOL modeExamplePrevious operationCOOL mode of “I FEELCONTROL” or COOLmodeWhen the system i

379-1-1. Cool mode of “I FEEL CONTROL”1. Indoor fan speed controlIndoor fan operates continuously at the set speed by FAN SPEED CONTROL button regardl

389-1-3. HEAT mode of “I FEEL CONTROL” 3. Coil frost preventionThe operational frequency of the compressor is controlled based on the temperature of t

392. High pressure protectionIn HEAT mode the indoor coil thermistor detects the temperature at the indoor heat exchanger and controls the compressoro

4REMOTE CONTROLLERSignal transmitting sectionOperation display sectionOPERATE /STOP(ON /OFF)buttonOPERATION SELECT buttonFAN SPEED CONTROL buttonON-TI

409-2. COOL ( ) OPERATION(1) Press OPERATE/STOP(ON/OFF) button. OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone.(2) Select COOL

41(3) PositioningThe vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle.Confirming of s

42(9) ECONO COOL ( ) operation (ECONOmical operation)When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C high

43PROGRAM TIMER(Example 1) The current time is 8:00 PM.The unit turns off at 11:00 PM, and on at 6:00 AM.● The OFF timer and ON timer can be used in c

449-9. Operational frequency control of outdoor unit1. OutlineThe operational frequency is as following:First, the target operational frequency is set

459-10. Expansion valve control (LEV control)(1) Outline of LEV controlThe LEV basic control is comprised of setting LEV opening degree to the standar

469-11. Outdoor fan motor controlThe AC fan motor turns ON/OFF, interlocking with the compressor.[ON] The AC fan motor turns ON 5 seconds before the

479-12. R.V. coil controlHeating. . . . . . . . . . . . . . . . ONCooling. . . . . . . . . . . . . . . . OFFDry. . . . . . . . . . . . . . . . . . . O

482hours2hoursOperation time chartExamplePrevious operationCOOL mode of “I FEEL CONTROL” orCOOL modeOperation time chart ExamplePrevious operationCOOL

49ModelCOOL mode of "I FEEL CONTROL"DRY mode of "I FEEL CONTROL" HEAT mode of "I FEEL CONTROL" Initial room temperatu

5ON/OFFTOOCOOL AMPMAMPMCLOCKTOOWARMON/OFFFANTOOWARMTOOCOOLVANEMODEECONO COOL STOP STARTHR.MIN.SWINGI FEELCOOLHEATDRY PMCLOCKAMPMRESET CLOCK:

503. Coil frost prevention The operation is as same as coil frost prevention during COOL mode of “I FEEL CONTROL”.Indoor fan operates at the set speed

51NOTE : During the high pressure protection and for 10 seconds after high pressure protection, defrosting of outdoor heatexchanger is not detected by

526. R.V. coil controlHeating · · · · · ONCooling · · · · · OFFDry · · · · · · · · OFFNOTE: The 4-way valve reverses for 5 seconds right before start

539-15. COOL ( ) OPERATION(1) Press OPERATE/STOP (ON/OFF) button.OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone.(2) Select COOL

54Set positionAngle 1ReleasedCold air prevention24:28:Horizontal vaneIndoor coil thermistorRT12 temperatureNOTE : If the temperature of RT12 reads fro

55(9) ECONO COOL ( ) operation (ECONOmical operation)When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C high

56612345SWING2. Vertical vane(1) Vane motor driveThis model is equipped with a stepping motor for the vertical vane. The rotating direction, speed, an

57PROGRAM TIMER(Example 1) The current time is 8:00 PM.The unit turns off at 11:00 PM, and on at 6:00 AM.● The OFF timer and ON timer can be used in c

589-22. Main power supply circuitPOWERSUPPLYL62L61CT61DS62X64R64AR64BDS61LC61C62R61IPM+–(–)(~)(~)(+)(–) (~)(+)(~)WVUPNUVW+–COMPRESSOREMICROPROCESSORR6

59FunctionSymbolNameIt improves the power factor of power supply.It stabilizes the direct current voltage.It measures the current of main power supply

6MSZ-G20SV -E1ON/OFFTOOCOOL PMAMTOOWARMON/OFFFANTOOWARMTOOCOOLVANEMODEECONO COOL STOP STARTHR.MIN.WIDE VANELONGI FEELCOOLHEATDRY PMCLOC

60(2) Frequency after the unit starts operation (Except for the case where the unit operates with the maximum operation frequency)In case the differen

61Linear expansion valve (LEV) is controlled by "Thermostat ON" commands given from each unit.• LEV opening is determined by adding adjustme

629-26. Heat defrosting control(1) Conditions to enter defrosting mode1. When temperature of defrosting thermistor is -3: or less.2.When specified non

63Discharge temperature thermistorIndoor pipe temperature thermistorDefrost thermistorFin temperature thermistorPurposeProtectionDefrosting Protection

64No. 1 unitNo. 2 unitNo. 3 unitNo. 4 unit1 unit operationNo modification–––2 units operationSame as at leftSolder J1––3 units operationSame as at lef

65How to set “AUTO RESTART FUNCTION”1 Turn off the main power for the unit.2 Pull out the indoor electronic control P.C. board and the display P.C.boa

6611TROUBLESHOOTING3. Troubleshooting procedure1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate a

6711-2. Instruction of troubleshootingMSZ-G09SV - MSZ-G12SV -MSZ-G09SV - MSZ-G12SV -E2E2E1E1StartIndoor unit operates.Outdoor unit doesn't op

68MSZ-G20SV -E1StartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from remote controller.OPERAT

691. Troubleshooting check tableINDOOR UNITMSZ-G09SV - MSZ-G12SV -MSZ-G09SV - MSZ-G12SV -E2E2E1E1•The following indication applies regardless of s

7SPECIFICATION3Single phase230V,50Hz10—905.50 0.17 RC4V19-BAWHT-BLK 292BLK-RED 325850O278O19195 3101010MUZ-G09SV - E1 MUZ-G09SV - E2 1,5000.

70INDOOR UNITMSZ-G20SV -E1•The following indication applies regardless of shape of the indicator.Operation IndicatorflashingNOTE: Before taking measu

71OUTDOOR UNITMUZ-G09SV - MUZ-G12SV -MUZ-G09SV - MUZ-G12SV -NOTE 1. The location of LED is illustrated at the right figure.2. LED lights up during

72Outdoor power system When the compressor operation has been interrupted by overcurrentprotection continuously three times within 1 minute after star

73Current protection When the outdoor unit input current exceeds 15.5A.These symptoms do not mean any abnor-mality of the product, but check the follo

742. Trouble criterion of main partsMSZ-G09SV - MSZ-G12SV - MUZ-G09SV - MUZ-G12SV -MSZ-G09SV - MSZ-G12SV - MUZ-G09SV - MUZ-G12SV -E2E2E2E2E1E1

75MSZ-G20SV - MUZ-G20SV -E1E1Part name FigureCheck method and criterionMeasure the resistance between the terminals with a tester. (Part temperature

76Check of open phaseBCheck of transistor moduleCHow to check inverter/ compressorAWhen OPERATION INDICATOR lamp flashes 5-time.Outdoor unit does not

77Check of compressorDCheck of compressor windingECheck of compressor operation timeF● Disconnect the connector between compressor and transistor modu

78Check of indoor fan motorGWhen OPERATION INDICATOR lamp flashes 3-time.Indoor fan does not operate.Check of remote controller and receiver P.C. boar

79Check of outdoor thermistorsJWhen OPERATION INDICATOR lamp flashes 6-time.The thermistors in the outdoor unit are abnormal.Check of indoor electroni

8Indoor modelFunctionPower supplyCapacityAir flow(High/Med.W/LowW)DehumidificationPower outletRunning currentPower inputAuxiliary heaterPower factorSt

80Check of R.V. coilKCooling operates when heating is expected.Check of outdoor fan motorLOutdoor fan motor does not work.Disconnect the connector be

81Check of power supplyMInverter does not work.Check of thermal fuseNCheck of rush current limiting circuitOOutdoor unit does not operate at all or st

82Check of expansion valve (LEV)PHeating/Cooling does not operate.Replace the LEV coil.Replace the LEV.With remote controller set toward the indoor u

83How to check mis-wiring and serial signal errorQWhen OPERATION INDICATOR lamp flashes ON and OFF in every 0.5-second or flashes once.Outdoor unit do

84YesYesCheck of indoor fan motorRCheck of remote controller and receiver P.C. boardSWhen OPERATION INDICATOR lamp flashes 3-time.Indoor fan doesn’t o

85Check of indoor electronic control P.C. boardTVaristor (NR11)Indoor electronic control P.C. boardFuse (F11)Check both “parts side”and “pattern side”

86How to check mis-wiringNoYes1. Turn OFF the power supply and disconnect only terminal block 3 of indoor/ outdoor connecting wire on indoor side.2.

87NoYesNoYesStart1. Disconnect the lead wire from the compressor.2. Turn ON power supply, opearate the unit in COOL mode by pressing EMERGENCY OP

88Check of inverter/ compressorNoYesYesNoYesNoStartDisconnect the lead wire from compressor, and turn on power supply. Press the EMERGENCY OPERATION s

89Check of outdoor fan motorNoYesYesNoNoYesNoYesStartDisconnect the fan motor connector, and measure the resistance of the fan motor winding. Is resis

91.5+ 440V250V 3.15A93:5A 250VMP20GA 12V 300"ERZV10D471S201DH1Y5PJM1aN-ZTMP-DC12V136:i3: 2A 100+ 420V1500+ 420V8A 8mH70m" 5W 10" 15WE

90TEST POINT DIAGRAM AND VOLTAGEMSZ-G09SV - MSZ-G12SV -MSZ-G09SV - MSZ-G12SV -Indoor electronic control P.C. boardE2E2E1E1Varistor (NR11)Fuse (F11

91MSZ-G20SV -Indoor electronic control P.C. boardE1Fan motor power supplyFuse (F11) 250V AC 3.15A}Power supply input230V AC+}5V DCIndoor coil thermis

92MUZ-G09SV - MUZ-G12SV -MUZ-G09SV - MUZ-G12SV -E2E2E1E1Outdoor electronic control P.C. board-20 -10 0 10 20 30 400102030405060708090100Temperatur

93325V DCMUZ-G20SV -Outdoor electronic control P.C. boardE1((()Defrost thermistor (RT62)Discharge temperature thermistor (RT61)Fin tempera-ture therm

94MUZ-G09SV -MUZ-G09SV -Noise filter P.C. boardE2E1MUZ-G12SV -MUZ-G12SV -Noise filter P.C. boardE2E1}Current -limit-ing relay(X64)Surge absorber(D

95MUZ-G20SV -Noise filter P.C.boardE1230V AC 50Hz InputOutdoor Fan Fan speed “Low”230V ACOutdoor FanFan speed “High”230V AC230V AC 50Hz OutputR.V. co

96MUZ-G09SV - MUZ-G12SV -MUZ-G09SV - MUZ-G12SV -Relay P.C. boardE2E2E1E1R.V. coil(21S4)230V ACOutdoor fan motor (MF61)230V AC OB245--4qxp 02.10.2

9712DISASSEMBLY INSTRUCTIONS12-1. MSZ-G09SV - MSZ-G12SV -MSZ-G09SV - MSZ-G12SV -INDOOR UNITE2E2E1E1(1) Slide the sleeve and check if there is a l

98OPERATING PROCEDURE PHOTOS4. Removing the vane motor(1) Remove the front panel.(2) Remove the screws of the vane motor, disconnect the vanemotor con

99OPERATING PROCEDURE PHOTOS1. Removing the front panel(1) Remove the screw caps of the front panel.Remove the screws.(2) Pull the panel down to your