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OPERATING PROCEDURE
2. Removing the inverter assembly and inverter 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>
CN721 (R.V. coil)
CN931, CN932 (Fan motor)
CN641 (Defrost thermistor and discharge temperature ther-
mistor)
CN643 (Ambient temperature thermistor)
CN644 (Outdoor heat exchanger temperature thermistor)
CN724 (Expansion valve coil)
(3) Remove the compressor connector (CN61).
(4) Remove the screws fixing the heat sink support and the sep-
arator.
(5) Remove the fixing screw of the P.B. support and the separa-
tor.
(6) Remove the fixing screws of the terminal block support and
the back panel.
(7) Remove the inverter assembly.
(8) Remove the heat sink support from the P.C. board support.
(9) Remove the screw of the inverter P.C. board and remove the
inverter P.C. board from the P.C. board support.
*
Connection procedure when attaching the inverter P.C.
board (Photo 5)
1. Connect the lead wires of the heat exchanger temperature
thermistor and the expansion valve coil to the connector
on the inverter P.C. board. Pull the lead wires of the heat
exchanger temperature thermistor and the expansion
valve coil toward you and put them on the left and right
hooks on the P.C. board support so that the other lead
wires are bundled up as shownin Photo 5.
Photo 6 (Inverter assembly)
Heat sink support
Heat sink
P.C. board support
Inverter P.C. board
OBH767G
Screws of the
earth wire
Screw of the inverter P.C. board
PHOTOS/FIGURES
Photo 4
Screw of the heat sink
support and the separator
Photo 5
Lead wires of the heat exchanger
temperature thermistor and the
expansion valve coil
Inverter P.C. board support
77
Screw of the P.B. support
and the separator
Screws of
the terminal block
support and
the back panel
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