Mitsubishi Electric MUY-GL09NA-U1, Service Manual

Page: 73 / 76

OPERATING PROCEDURE PHOTOS/FIGURES
2. Removing the inverter assembly, inverter P.C. board
and relay P.C. board
(1) Remove the cabinet and panels. (Refer to section 1.)
(2) Disconnect the lead wire to the reactor and the following con-
nectors:
<Inverter P.C. board>
CN601 (Defrost heater and heater protector) ( MUZ-GL24NAH )
CN602 (R.V. coil) ( MUZ )
CN931, CN932 (Fan motor)
CN671 (Defrost thermistor (
MUZ
), discharge temperature
thermistor and outdoor heat exchanger temperature
thermistor)
CN672 (Ambient temperature thermistor)
CN724 (LEV)
(3) Remove the compressor connector.
(4) Remove the screws fixing the relay panel.
(5) Remove the relay panel.
(6) Remove the ground wires and the lead wires of the inverter
P.C. board.
(7) Remove the screws of the P.B. support.
(8) Remove the inverter P.C. board from the P.B. support.
Photo 5
3. Removing R.V. coil (MUZ)
(1) Remove the cabinet and panels. (Refer to section 1.)
(2) Disconnect the following connector:
<Inverter P.C. board>
CN602 (R.V. coil) ( MUZ )
(3) Remove the R.V. coil.
Photo 6
73
Brazed parts of
4-way valve
Screw of the
R.V. coil ( MUZ )
Screw of the
relay panel
Screws of the
P.B. support
Inverter P.C.
board
Ground wires
Screws of
the P.B.
support
Screw of the
relay panel
Screw of the
relay panel
OBH733G