Toshiba RAV-SP454ATP-E Service Manual page 93

No. Part name
Exchange of
4
electric parts
SVM-12085_051-114.indd 93 SVM-12085_051-114.indd 93
Procedure
1. Control P.C. board
1) Carry out work of 1 of
WARNING
Never disassemble the inverter for 1 minute
after power has been turned off because an
electric shock may be caused.
2) Remove the connectors connected to the
control P .C. board.
(Indoor power supply, temperature sensors,
PMV coil, 4-way valve coil, compressor case
thermo, fan motor)
∗ Unlock the lock of the housing part and
then remove the connectors.
3) Remove the lead wires connected to the
control P .C. board.
(Torque at tightening time: 1.47 ± 0.1N m)
Compressor lead
U: CN200 Red
V: CN201 White
W: CN202 Black
Reactor lead
Relay connector: 2 positions
Remove the power wire from the power
supply terminal block.
(Torque at tightening time: 2.5 ± 0.1N m)
4) Remove the earth wire from the control P .C.
board. (Truss B tight screw Ø4 × 6, 1 pc.)
5) Remove the fixing screws of the control P .C.
board.
(Screw with collar for fixing element Ø3 × 16,
7 pcs. Pan S tight screw for fixing P .C. board
Ø3 × 20, 1 pc.)
6) Remove the control P .C. board.
(Supporter: 5 positions)
NOTE:
It is difficult to take out it because of radiator
grease for heat sink.
7) Mount a new control P .C. board.
NOTE:
Do not forget to attach the aluminum plate (Q201)
and the insulating sheet (Q300).
(Applying a little of radiator grease at the rear
surface of the insulating sheet in advance to
adhere to the heat sink makes easy the work.)
.
1
Fan motor
Compressor Compressor
case thermo case thermo
Temperature Temperature
sensor sensor
PMV coil
Screw for fixing P.C. board
Power supply terminal block Power supply terminal block
Control P.C. board Insulating sheet (Q300)
– 93 –
FILE NO. SVM-12085
Remarks
Compressor lead
Relay connector:
2 positions
Control
(1 at rear side)
P.C. board
Bundling band
(Reactor lead)
Reactor lead wires Reactor lead wires
(White,Charcoal gray) (White,Charcoal gray)
Earth wire Earth wire
4-way valve coil 4-way valve coil
Indoor power supply
Screw for fixing element (7 positions) Screw for fixing element (7 positions)
Aluminum plate (Q201)
Radiator Radiator
grease grease
12/06/12 11:15 AM 12/06/12 11:15 AM