OPERATING PROCEDURE

 

PHOTOS

2. Removing the inverter assembly, inverter P.C. board

Photo 3

 

 

 

 

Screws of the

 

(1) Remove the cabinet and panels. (Refer to 1.)

 

 

 

 

 

relay panel

 

(2) Disconnect the lead wire to the reactor and the following con-

 

 

 

 

 

 

 

 

 

 

 

nectors:

 

 

 

 

<Inverter P.C. board>

 

 

 

 

CN721 (R.V.coil) (MUZ)

 

 

 

 

CN931, CN932 (Fan motor)

 

 

 

 

CN641 (Defrost thermistor (MUZ) and discharge temperature

 

 

 

 

thermistor)

 

 

 

 

CN643 (Ambient temperature thermistor)

 

 

 

 

CN644 (Outdoor heat exchanger temperature thermistor)

 

 

 

 

CN724 (LEV)

 

 

 

 

(3)Remove the compressor connector (CN61).

(4)Remove the screws fixing the relay panel. (Photo 3)

(5)

Remove the inverter assembly. (Photo 4)

 

(6)

Remove the screw of the ground wire and screw of the

 

Screws of

 

T.B.support. (Photo 4)

 

the reactor

(7)

Remove the screw of the PB fixture.

 

(8)

Remove the relay panel from the PB support.

 

(9)

Remove the inverter P.C. board from the inverter assembly.

 

 

 

Photo 4 (Inverter assembly)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inverter P.C.

Screw of the

 

 

 

Heat sink

 

3. Removing R.V. coil

 

 

 

board

 

 

T.B.support

 

 

 

 

 

 

 

 

 

 

 

Hook of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)

Remove the cabinet and panels. (Refer to 1.)

 

 

PB support

 

 

 

PB support

T.B.support

 

 

 

 

 

 

 

 

(2)

Disconnect the following connectors:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<Inverter P.C. board>

 

 

 

 

 

 

 

 

 

 

 

 

 

CN721 (R.V. coil) (MUZ)

 

 

 

 

 

 

 

 

 

 

 

 

(3)

Remove the R.V. coil. (Photo 5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw of the

 

Relay panel

 

 

 

 

ground wire

 

 

 

 

 

Hook of the

Screw of the

 

 

PB support

PB fixture

 

 

Photo5

R.V. coil (MUZ)

Welded parts of 4-way valve

44

Page 44
Image 44
Mitsubishi Electronics MUZ-GE12NA, MUY-GE12NA, MUY-GE15NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE15NA Removing R.V. coil, Photo5

MUZ-GE09NA, MUZ-GE15NA, MUY-GE15NA, MUZ-GE18NA, MUZ-GE12NA specifications

Mitsubishi Electronics offers a range of advanced air conditioning systems, including the MUY-GE12NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE12NA, and MUZ-GE18NA models. These units are designed for optimal energy efficiency and superior comfort, making them ideal for residential and commercial applications.

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