Mitsubishi Electric MSZ-GF60VE Service Manual Download Page 8 | Manualshive

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8

WIRING DIAGRAM

6

MSZ-GF60VE MSZ-GF71VE

REFRIGERANT SYSTEM DIAGRAM

7

Unit: mm

MSZ-GF60VE MSZ-GF71VE

Indoor

heat

exchanger

Flared connection

Room temperature
thermistor
RT11

Flared connection

Refrigerant pipe ø15.88
(with heat insulator)

Refrigerant pipe ø6.35 (

MSZ-GF60VE

)

ø9.52 (

MSZ-GF71VE

)

(with heat insulator)

Indoor coil

thermistor

RT12 (main)

Indoor coil

thermistor

RT13 (sub)

Refrigerant flow in cooling

Refrigerant flow in heating

OBH634

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Summary of Contents for MSZ-GF60VE

Page 1: ... 8 SERVICE FUNCTIONS 9 9 MICROPROCESSOR CONTROL 11 10 TROUBLESHOOTING 18 11 DISASSEMBLY INSTRUCTIONS 32 SPLIT TYPE AIR CONDITIONERS SERVICE MANUAL No OBH634 INDOOR UNIT PARTS CATALOG OBB634 NOTE RoHS compliant products have G mark on the spec name plate Models MSZ GF60VE E1 MSZ GF71VE E1 Outdoor unit service manual MUZ GF VE Series OBH635 MXZ D VA Series OBH626 MXZ 6C122VA OBH584 ...

Page 2: ...service Prepare the proper tools Prepare the proper protectors Provide adequate ventilation After stopping the operation of the air conditioner turn off the power supply breaker and remove the power plug Discharge the capacitor before the work involving the electric parts Precautions during the repair service Do not perform the work involving the electric parts with wet hands Do not pour water int...

Page 3: ...control Refer to the techni cal guide OBT17 about the low standby power control These models may be connected to the MUZ GF VE series after once connected to the MXZ series and operated for exam ple because of relocation In that case the MUZ GF VE series outdoor units will not operate without taking a step Follow the procedure Deleting the memorized abnormal condition described in 10 2 1 TECHNICAL...

Page 4: ...y AAA for remote controller 2 Wireless remote controller 1 Felt tape For left or left rear piping 1 Operation indicator lamp Remote control receiving section Emergency operation switch E O SW Horizontal vane Vertical vane Air outlet Fan Air filter Nano platinum filter Air inlet Heat exchanger Front panel Air cleaning filter Electrostatic anti allergy enzyme filter option Display section Fan guard ...

Page 5: ...ing Super High 52 53 LONG POWERFUL Super High dB A 49 High 45 Med 41 Low 37 Silent 29 30 Heating Super High 52 LONG POWERFUL Super High dB A 49 High 45 Med 41 Low 37 Silent 29 30 Fan speed Cooling Super High 1 280 1 300 LONG POWERFUL Super High rpm 1 090 1 140 High 960 1 010 Med 850 900 Low 740 800 Silent 660 700 Heating Super High 1 280 1 300 LONG POWERFUL Super High rpm 1 090 1 140 High 960 910 ...

Page 6: ...R FREQUENCIES Hz COOLING FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 49 49 NC 10 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz COOLING FUNCTION SPL dB A LINE Super High FAN SPEED HEATING 49 49 NC 10 Specifications and rated conditions of main electric parts...

Page 7: ...O D Liquid line Ø9 52 0 5m Flared connection Ø9 52 Gas line Ø12 0 43m Flared connection Ø15 88 Drain hose Inslation Ø28 Connected part Ø16 O D Piping Insulation Ø50 O D Liquid line Ø9 52 0 5m Flared connection Ø6 35 Gas line Ø12 0 43m Flared connection Ø15 88 Drain hose Inslation Ø28 Connected part Ø16 O D Air out Piping Drain hose 11 26 Oblong hole 11 20 Oblong hole Installation plate Indoor unit...

Page 8: ...anger Flared connection Room temperature thermistor RT11 Flared connection Refrigerant pipe ø15 88 with heat insulator Refrigerant pipe ø6 35 MSZ GF60VE ø9 52 MSZ GF71VE with heat insulator Indoor coil thermistor RT12 main Indoor coil thermistor RT13 sub Refrigerant flow in cooling Refrigerant flow in heating OBH634 ...

Page 9: ... of indoor unit as shown in Table 1 After modification press the RESET button Table 1 1 unit operation 2 units operation 3 units operation 4 units operation No 1 unit No modification Same as at left Same as at left Same as at left No 2 unit Solder J1 Same as at left Same as at left No 3 unit Solder J2 Same as at left No 4 unit Solder both J1 and J2 How to set the remote controller exclusively for ...

Page 10: ...trol P C board JR77 CN151 NOTE The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote controller If main power is turned OFF or a power failure occurs while AUTO START STOP timer is active the timer setting is can celled If the unit has been off with the remote controller before power failure the auto restart function does not work as th...

Page 11: ...LAY SECTION Lighted Blinking Not lighted 9 1 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 mode with OPERATION SELECT button 3 Press TEMPERATURE buttons TEMP or button to select the desired temperature The setting range is 16 31 C 1 Coil frost prevention The compressor operational frequency is controlled by the...

Page 12: ...es or the fixed time passes 9 4 AUTO CHANGE OVER AUTO MODE OPERATION Once desired temperature is set unit operation is switched automatically between COOL and HEAT operation Mode selection 1 Initial mode When unit starts the operation with AUTO operation from OFF If the room temperature is higher than the set temperature operation starts in COOL mode If the room temperature is equal to or lower th...

Page 13: ...rk in the indoor unit 9 ECONO COOL operation ECONOmical operation When ECONO COOL button is pressed in COOL mode set temperature is automatically set 2 C higher Also the horizontal vane swings in various cycle SWING operation makes you feel cooler than set temperature So even though the set temperature is higher the air conditioner can keep comfort As a result energy can be saved To cancel this op...

Page 14: ...SWING is started 1 2 3 4 5 6 SWING 11 LONG MODE By pressing LONG button indoor fan speed becomes faster than setting fan speed on the remote controller and the horizontal vane moves to the position for LONG mode The remote controller displays LONG mode is can celled when LONG button is pressed once again or VANE CONTROL button is pressed or ECONO COOL button is pressed in COOL mode In the followin...

Page 15: ... setting a Press OFF TIMER button during operation b Set the time of the timer using TIME SET buttons and Each time FORWARD button is pressed the set time increases by 10 minutes each time BACKWARD but ton is pressed the set time decreases by 10 minutes 2 To release the timer To release ON timer press ON TIMER button To release OFF timer press OFF TIMER button TIMER is cancelled and the display of...

Page 16: ...ority over the weekly timer the weekly timer operation will start again after the simple ON OFF timer is complete When the weekly timer is set temperature can not be set to 10 C The weekly timer operation and i save operation cannot be used together 1 How to set the weekly timer Press and buttons to continue setting the timer for other days and or numbers 4 Press button to complete and transmit th...

Page 17: ... emergency operation In the test run or the emergency operation the horizontal vane oper ates in VANE AUTO mode Emergency operation continues until EMERGENCY OPERATION switch is pressed once or twice or the unit receives any signal from the remote controller In case of latter normal operation will start NOTE Do not press EMERGENCY OPERATION switch during normal operation Operation mode COOL HEAT S...

Page 18: ...re starting service work 2 Before servicing check that the connector and terminal are connected properly 3 When the electric control P C board seems to be defective check the copper foil pattern for disconnection and the components for bursting and discoloration 4 When troubleshooting Refer to 10 2 10 3 and 10 4 4 How to replace batteries Weak batteries may cause the remote controller malfunction ...

Page 19: ...talled correctly all of the operation indicator lamps will blink In this case install the horizontal vane correctly by following the procedures to NOTE Before installation of the horizontal vane turn OFF the power supply Check the upper and the lower vane 2 1 Lock OBH634 ...

Page 20: ...e is displayed with the remote controller headed towards the indoor unit Press EMERGENCY OPERATION switch so that the memorized abnormal condition is deleted 4 Release the failure mode recall function according to Releasing the failure mode recall function mentioned above Yes Blinks No OFF NOTE 1 Make sure to release the failure mode recall function after it is set up otherwise the unit cannot ope...

Page 21: ...s of the main indoor coil ther mistor the sub indoor coil thermistor 10 7 1 3 time flash 2 5 second OFF Serial signal The serial signal from outdoor unit is not re ceived for a maximum of 6 minutes Refer to 10 6 How to check miswiring and serial signal error 11 time flash 2 5 second OFF Indoor fan motor The rotational frequency feedback signal is not emitted during the 12 seconds the indoor fan op...

Page 22: ...serial signal Upper lamp 2 time flash Cause Indoor unit Trouble of room temperature indoor coil thermistor Upper lamp 3 time flash Cause Indoor unit Trouble of indoor fan motor Upper lamp 4 time flash Cause Indoor unit Trouble of indoor unit control system Upper lamp 5 time flash Cause Outdoor unit Outdoor power system abnormality Upper lamp 6 time flash Cause Outdoor unit Trouble of thermistor in...

Page 23: ... overcurrent protection or start up failure protection within 1 minute after start up Refer to How to check of in verter compressor Refer to outdoor unit service manual Check the stop valve 6 Outdoor thermistors Upper lamp flashes 6 time flash 2 5 second OFF The outdoor thermistors short or open circuit during the compressor operation Refer to Check of outdoor thermistor Refer to outdoor unit serv...

Page 24: ... is differently set to COOL includes DRY and HEAT at the same time the operation mode of the indoor unit that has operated at first has the priority Unify the operation mode Refer to outdoor unit service manual 10 5 TROUBLE CRITERION OF MAIN PARTS MSZ GF60VE MSZ GF71VE Part name Check method and criterion Figure Room temperature thermistor RT11 Indoor coil thermistor RT12 RT13 Measure the resistan...

Page 25: ...ween CN211 and 2 Measure the voltage between CN211 and If more than 12 seconds passes after EMERGENCY OPERATION switch is pressed the voltage measured at 2 above goes 0 V DC although the indoor P C board is normal Does the voltage between CN211 and on the indoor electronic control P C board rise to the range of 3 to 6 VDC within 12 seconds after EMERGENCY OPERATION switch is pressed Replace the in...

Page 26: ...the unit operates with the remote controller Yes No Turn ON a radio to AM and press OP ERATE STOP ON OFF button on the remote controller Is noise heard from radio Yes No Replace the remote controller Are there any fluorescent lights of inverter or rapid start type within the range of 1 m Yes No Reinstall the unit away from lights Attach a filter on receiving part Measure the voltage between power ...

Page 27: ...motor coil Refer to 10 5 Measure the resistance between CN211 and of the indoor fan motor connector Short open circuit Replace the indoor fan motor Short open circuit Replace the horizontal vane motor and the indoor electronic control P C board Turn OFF the power supply Check both parts side and pattern side of the indoor electronic control P C board visually Replace the varistor NR11 and fuse F11...

Page 28: ...N Yes Turn OFF inverter controlled lighting equipment Turn OFF the power supply and then turn ON again Press EMERGENCY OPERATION switch A Is serial signal error indicated 6 minutes later B Yes Reinstall either the unit or the light away from each other Attach a filter on remote control receiving section of the indoor unit No NOTE Refer to the outdoor unit service manual Replace the indoor electron...

Page 29: ... Refer to 10 1 5 Turn ON the power supply Are all lamps flashing Yes No Turn OFF the power supply To check the continuity of the interlock switch Fan measure the resistance of connector connected to CN1R1 on the indoor electronic control P C board Is there resistance 0 Ω Yes No Replace the interlock switch Fan Replace the indoor electronic control P C board OK Turn OFF the power supply OBH634 ...

Page 30: ...he installation condition combination of specific conditions such as antennas or wiring Check the following before asking for service 1 Devices affected by the electromagnetic noise TV sets radios FM AM broadcast shortwave 2 Channel frequency broadcast station affected by the electromagnetic noise 3 Channel frequency broadcast station unaffected by the electromagnetic noise 4 Layout of indoor outd...

Page 31: ... 8 3 Timer short mode point JPG JPS Refer to 8 1 Please replace the fuse after removing the indoor terminal P C board from the electrical box Vane motor CN151 CN152 5 VDC 12 VDC Room temperature thermistor RT11 CN111 Indoor coil thermistor RT12 RT13 CN112 Interlock switch FAN CN1R1 1 Indoor electronic control P C board Indoor terminal P C board Power monitor receiver SW P C board MSZ GF60VE MSZ GF...

Page 32: ...es Refer to 1 and 2 of the terminal with locking mechanism The terminal without locking mechanism can be detached by pulling it out Check the shape of the terminal before detaching DISASSEMBLY INSTRUCTIONS 11 11 1 MSZ GF60VE MSZ GF71VE NOTE Turn OFF power supply before disassembly OPERATING PROCEDURE PHOTOS 1 Removing the panel 1 Remove the horizontal vanes 2 Remove the screw caps of the panel Rem...

Page 33: ...ove the screw of the terminal block on the indoor terminal P C board 9 Remove the indoor terminal P C board and the indoor electronic control P C board Photo 2 Photo 3 3 Removing the indoor electrical box 1 Remove the panel Refer to 1 and the corner box 2 Remove the indoor outdoor connecting wire Refer to 2 3 Remove the earth wire connected to the indoor heat exchanger from the electrical box 4 Re...

Page 34: ...tical vane 3 Remove the screw of the vertical vane motor unit and pull the vertical vane motor unit 4 Remove the screws of the vertical vane motor unit cover 5 Remove the crank of the vertical vane motor unit from the shaft of the vane motor 6 Remove the vertical vane motor from the vertical vane motor unit 7 Disconnect the connector of vertical vane motor from the vertical vane motor 6 Removing t...

Page 35: ...band 8 Release the hooks of the motor band Remove the motor band Pull out the indoor fan motor 9 Remove the indoor coil thermistor from the heat exchanger Install the indoor coil thermistor in its former position when assembling it Photo 9 10 Remove the screws fixing the left side of the heat exchanger 11 Lift the heat exchanger and pull out the line flow fan to the lower left Photo 8 Photo 9 Phot...

Page 36: ... 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Copyright 2013 MITSUBISHI ELECTRIC CORPORATION Distributed in Mar 2013 No OBH634 Made in Japan New publication effective Mar 2013 Specifications are subject to change without notice ...

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