OPERATING PROCEDURE
PHOTOS
2. Removing the inverter assembly, inverter P.C. board
and relay P.C. board
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the lead wire to the reactor and the following con-
nectors:
<Inverter P.C. board>
CN602 (R.V. coil)
CN931, CN932 (Fan motor)
CN671 (Defrost thermistor, 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 earth wires and the lead wires of the inverter P.C.
board.
(7) Remove the screws of the PB support.
(8) Remove the inverter P.C. board from the relay panel.
(9) Disconnect the following connectors:
<Relay P.C. board>
CN60 (Terminal block)
CN680 (Inverter P.C. board)
TAB65 (Inverter P.C. board)
TB71
(10) Remove the screws fixing the P.B. holder.
(11) Remove the relay P.C. board from the P.B. holder.
Photo 3
Photo 4
3. Removing R.V. coil
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the following connector:
<Inverter P.C. board>
CN602 (R.V. coil)
(3) Remove the R.V. coil.
40
Screws of
the P.B.
support
Screws of the
relay panel
Inverter P.C
board
Earth wires
Screw of
the P.B.
holder
Screws of
the P.B.
support
Brazed parts of
4-way valve
Screw of the
R.V. coil
Screw of the
relay panel
Relay
P.C board
OBH635
