67
2. Removing the inverter assembly, inverter P.C. board
and power board
(for
SUZ-KA50VA2.TH)
(1) Remove the top panel, cabinet, service panel and back
panel. (Refer to 1.)
(2) Disconnect the lead wire to the reactor and the following
connectors;
<Inverter P.C. board>
CN721 (R.V.coil)
CN932 (Fan motor)
CN641 (Defrost thermistor and discharge temperature ther-
mistor)
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 5)
(5) Remove the inverter assembly. (Photo 6)
(6) Remove the screw of the earth wire and screw of the
T.B.support. (Photo 6)
(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.
(for
SUZ-KA60VA2.TH)
(1) Remove the top panel, cabinet, service panel and back
panel. (Refer to 1.)
(2) Disconnect the following connectors;
<Electronic control P.C. board>
CN931 and CN932 (Fan motor)
CN795
(LEV)
CN661 (Discharge temperature thermistor, defrost
thermistor and outdoor heat exchanger
temperature thermistor)
<Noise filter P.C. board>
CN912 (4-way valve)
(3) Remove the compressor connector.
(4) Remove the screws fixing the relay panel.
(5) Remove the inverter assembly.
(6) Disconnect all connectors and lead wires on the electronic
control P.C. board.
(7) Remove the electronic control P.C. board from the inverter
assembly.
(8) Remove the screws fixing the power board assembly.
(9) Disconnect all connectors and lead wires on the power
board.
(10) Remove the power board from the inverter assembly.
(11) Disconnect all connectors and lead wires on the noise filter
P.C. board.
(12) Remove the noise filter P.C. board from the inverter
assembly.
OPERATING PROCEDURE
PHOTOS
Photo 4
3. Removing R.V. coil
(1) Remove the top panel, cabinet and service panel. (Refer to 1)
(2) Remove the back panel. (Refer to 1.)
(3) Disconnect the following connectors;
for SUZ-KA50VA2.TH
<inverter P.C. board>
CN721 (R.V. coil)
for SUZ-KA60VA2.TH
<Noise filter P.C. board>
CN912 (R.V. coil)
(4) Remove the R.V. coil. (Photo 11)
Screws of the relay panel
Screws of the power board assembly
Heat sink
Inverter P.C.
board
Screw of the
earth wire
T.B.support
Screw of the
T.B.support
Screws of the
relay panel
Screws of
the reactor
Hook of the
PB support
PB support
Hook of the
PB support
Relay panel
Screw of the
PB fixture
Photo 5 (SUZ-KA50VA2.TH)
Photo 6 (SUZ-KA50VA2.TH)
Summary of Contents for SUZ-KA25VA2
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