Mitsubishi Electric MCF-GA35VB Service Manual Download | Manualshive

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Summary of Contents for MCF-GA35VB

Page 1: ...led on the ceiling When installed on the floor FLOOR AND CEILING TYPE AIR CONDITIONERS MCF GA35VB MCF GA50VB MCF GA60VB E1 E1 E1 SERVICE MANUAL Wireless type Models INDOOR UNIT NOTE This service manual describes technical data of the indoor units RoHS compliant products have G mark on the spec name plate For servicing of RoHS compliant products refer to the RoHS PARTS LIST RoHS compliant Outdoor u...

Page 2: ...ne Vertical vanes Emergency operation switch When installed on the ceiling ACCESSORIES Item Installation plate Unit fixing screw 5 o 12mm Wireless remote controller Remote controller holder Fixing screw for 3 5 o 16mm Black Battery AAA for remote controller Drain hose Drain pipe cover Knockout cover Screw for 4 o 10mm 2 2 1 1 2 2 1 1 1 2 Q ty 2 MCF A12WV MCF GA35VB 1 Model name has been changed MC...

Page 3: ...CLOCK FAN ECONO COOL ECONO COOL button Open the front lid Signal transmitting section Operation display section OPERATE STOP ON OFF button TEMPERATURE buttons OPERATION SELECT button FAN SPEED CONTROL button OFF TIMER button HR button MIN button TIME SET button ON TIMER button RESET button VANE CONTROL button CLOCK SET button Indication of remote controller model is on back ...

Page 4: ... WHT BLK 182 2 BLK YLW 68 9 YLW BLU 47 5 BLU BRN 31 5 BRN RED 22 9 1 100O650O180 25 5 46 41W 36W 1 240 1 060W 845W 3 10 10 KM04N MCF GA60VB Cooling Single phase 230V 50Hz 840 744W 642W 0 36 80 97 0 36 RB4V36 DB WHT BLK 84 BLK YLW 46 2 YLW BLU 37 2 BLU BRN 45 2 BRN RED 13 6 48 45W 42W 1 320 1 190W 1 060W Electrical data Fan motor Special remarks Capacity MCF GA35VB Cooling Single phase 230V 50Hz 67...

Page 5: ...0 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE Test conditions Cooling Dry bulb temperature 27 Wet bulb temperature 19 High 44 SPL dB A LINE FAN SPEED MCF GA35VB MCF GA50VB 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 P...

Page 6: ...DOOR COIL THERMISTOR MV NR11 RT11 RT12 C11 F11 HIC1 MF INDOOR FAN CAPACITOR FUSE 3 15A DC DC CONVERTER INDOOR FAN MOTOR INNER FUSE SYMBOL SYMBOL SYMBOL NAME NAME NAME NOTE 1 About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block Connector OUTLINES AND DIMENSIONS 6 5...

Page 7: ...ermistor RT12 Indoor heat exchanger Distributor Flared connection Room temperature thermistor RT11 Indoor coil thermistor RT12 Flared connection Refrigerant pipe 12 7 with heat insulator Refrigerant pipe 6 35 with heat insulator MCF GA35VB Indoor heat exchanger Distributor Flared connection Room temperature thermistor RT11 Indoor coil thermistor RT12 Flared connection Refrigerant pipe 12 7 with he...

Page 8: ... unit No 2 unit No 3 unit No 4 unit 1 unit operation No modification 2 units operation Same as at left Solder J1 3 units operation Same as at left Same as at left Solder J2 4 units operation Same as at left Same as at left Same as at left Solder both J1 and J2 The P C board has the print J1 and J2 Solder J1 and J2 according to the number of indoor unit as shown in Table 1 After modification press ...

Page 9: ...o the same supply system if they are operated before power failure the starting current of all the compressors may flow simultaneously at restart Therefore the special counter measures are required to prevent the main voltage drop or the rush of the starting current by adding to the system that allows the units to start one by one When the indoor unit is controlled with the remote controller the o...

Page 10: ...emote controller and then after con firming the horizontal vane is closed turn OFF the breaker and or disconnect the power plug 2 Be sure to turn OFF the power supply before removing the front panel the cabinet the top panel and the electronic control P C board 3 When removing the electronic control P C board hold the edge of the board with care NOT to apply stress on the com ponents 4 When connec...

Page 11: ...ndoor coil thermistor Refer to 9 6 Test point diagram and voltage When the remote controller is pressed or when the EMERGENCY OPERATION switch is pressed the fan doesn t rotate with OPERATION INDICATOR lamp on Refer to 9 5 A Check of indoor fan motor Refer to outdoor unit service manual w2 Before checking the outdoor unit make sure if any signal or power is being transmitted from the indoor unit 4...

Page 12: ...1 9 4 Trouble criterion of main parts Part name Indoor coil thermistor RT12 Indoor fan motor MF INNER FUSE 145 i 5 CUT OFF Check method and criterion Measure the resistance with a tester Part temperature 10 C 30 C Figure Normal 8kΩ 20kΩ Abnormal Open or short circuit Vane motor MV Measure the resistance between the terminals with a tester Part temperature 10 C 30 C BLK RED ORN YLW BLU BRN WHT GRN ...

Page 13: ...ure the voltage between receiver P C board connector No 2 and No 1 when remote controller button is pressed Is the voltage approx 4V DC No 5V DC or 0V DC Replace the receiver No not clear Yes Yes No OK No Yes Yes Yes No Replace the indoor electronic control P C board No w Check if the remote controller is exclusive for this air conditioner Check of indoor electronic control P C board C The unit do...

Page 14: ...voltage MCF GA35VB MCF GA50VB MCF GA60VB Indoor electronic control P C board Fan motor power supply 230V AC 6 5 4 3 2 1 Med High Fuse F11 250V AC 3 15A Power supply input 230V AC 12V DC 5V DC Time short point JPG and JPS Refer to 8 1 Indoor coil thermistor RT12 Room temperature thermistor RT11 Low Release of AUTO RESTART FUNCTION Solder jumper wire to the JR07 Refer to 8 3 Room temperature thermis...

Page 15: ... the sirocco fan and the indoor fan motor Photo 1 Photo 2 Photo 4 Screws Electronic box Fan casing upper Indoor fan motor Screws Fan casing upper Motor band Terminal block MCF GA35VB MCF GA50VB MCF GA60VB Photo 3 Grille Electronic control P C board 1 Slide the sleeve and check if there is a locking lever or not 2 The terminal with this connector has the locking mechanism 1Slide the sleeve 2Pull th...

Page 16: ...lectronic box Refer to 1 5 Remove the indoor fan motor Refer to 2 6 Remove the screws of the motor support 7 Remove the fan casing Iower 8 Remove the insulation of the drain pan and remove the screws See Photo 7 9 Remove the screws under the drain pan See Photo 8 10 Remove the drain pan 11 Remove the indoor heat exchanger Photo 5 Photo 6 Photo 7 Photo 8 Screws Insulation of drain pan and screws sc...

Page 17: ...LE CATCH 1PCE SET 1PCE SET 1PCE SET 12 7 15 88 6 35 3PCS SET 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 3 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 3 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 3 MV E02 227 303 E02 179 971 E02 179 100 E02 179 010 E02 179 000 E02 215 700 E02 179 237 E02 179 238 E02 179 667 E02 138 666 E02 179 972 E02 138 667 E02 179 231 E02 227 235 E02 823 620 E02 824 620 E02 227 040 E02 179 142 No Part No Remarks Part ...

Page 18: ...R11 F11 REMOTE CONTROLLER REMOTE CONTROLLER HOLDER SW THERMO P C BOARD Q ty unit E02 179 500 E02 179 505 E02 227 300 E02 228 300 E02 684 300 E02 824 375 E02 823 375 E02 227 468 E02 324 307 E02 823 452 E02 824 452 E02 825 452 E02 215 328 E02 820 385 E02 127 382 No Part No Remarks Part name Symbol in Wiring Diagram 2PCS SET RB4V19 RB4V25 RB4V36 3P 3P 3 15A 12 13 1 1 1 1 1 1 E02 823 426 E02 527 083 D...

Page 19: ...T 1PCE SET 1PCE SET 12 7 15 88 6 35 3PCS SET 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 3 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 3 1 1 2 1 1 1 2 2 1 1 1 1 1 1 1 3 MV E12 227 303 E12 179 971 E12 179 100 E12 179 010 E12 179 000 E12 215 700 E12 179 237 E12 179 238 E12 179 667 E12 138 666 E12 179 972 E12 138 667 E12 179 231 E12 227 235 E12 823 620 E12 824 620 E12 825 620 E12 227 040 E12 179 142 No G G G G G G G G G G G G G...

Page 20: ...MOTE CONTROLLER HOLDER SW THERMO P C BOARD Q ty unit E12 179 500 E12 179 505 E12 227 300 E12 228 300 E12 684 300 E12 824 375 E12 823 375 E12 227 468 E12 324 307 E12 823 452 E12 824 452 E12 825 452 E12 215 328 E12 820 385 E12 A49 382 No G G G G G G G G G G G G G G G Part No Remarks Part name Symbol in Wiring Diagram 1PCE SET 2PCS SET RB4V19 RB4V25 RB4V36 3P 3P T3 15AL250V 12 13 G G 1 1 1 1 1 1 E12 ...

Page 21: ...e unit s capacity or cause condensation at the air outlet The air cleaning filter is disposable The standard usable term is about 4 months However if the color of the filter turns to dark brown replace soon Remove the air filter and the deodorizing filter together Separate the deodorizing filter gray sponge type from the air filter Remove the air filter and the air cleaning filter together Separat...

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Page 24: ...t to change without notice C C Copyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in May 2006 No OB382 REVISED EDITION A 6 Distributed in Dec 2004 No OB382 6 Made in Japan HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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