35
OPERATING PROCEDURE
PHOTOS
2. Removing the inverter assembly, inverter P.C. board
and power P.C. board
(1) Remove the top panel, cabinet and service panel.
(Refer to 1.)
(2) Disconnect the indoor/outdoor connecting wire and remove
the back panel. (Refer to 1.)
(3) Disconnect the ground wire, the lead wire to the reactor
and the following connectors;
<Power P.C. board>
CN721 (4-way valve)
CN722 (Defrost heater) MUZ-A09/A12YVH-
CN771 (Fan motor)
<Inverter P.C. board>
CN641 (Defrost thermistor and discharge temperature
thermistor)
CN643 (Ambient temperature thermistor)
CN724 (LEV)
(4) Remove the compressor connector (CN61).
(5) Remove the screws fixing the relay panel. (Photo 3)
(6) Remove the inverter assembly. (Photo 3)
(7) Disconnect all connectors and lead wires on the inverter
P.C. board. (Photo 4)
(8) Remove the inverter P.C. board from the inverter assembly.
(9) Remove the screw fixing the power P.C. board. (Photo 4)
(10) Disconnect all connectors and lead wires on the power P.C.
board.
(11) Remove the power P.C. board from the inverter assembly.
E1
Photo 3
Photo 4
Screw of the power
P.C. board
Heat sink
3. Removing R.V. coil
(1) Remove the top panel, cabinet and service panel.
(Refer to 1.)
(2) Disconnect the indoor/outdoor connecting wire and remove
the back panel. (Refer to 1.)
(3) Remove the inverter assembly. (Refer to 2.)
(4) Remove the R.V. coil. (Photo 5)
Screws of the relay panel
Inverter
P.C. board
Power
P.C. board
Screw of
the ground
wire
OB328A --2qxp 04.4.26 4:50 PM Page 35
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