Toshiba CARRIER RAV-SP300AT2-UL - Manual (Page 85)

– 85 –
No. Part name
Control P.C.
board assembly
Procedure
1) Remove the sub-board base from the inverter
assembly. (M4, 8 mm, 2 pcs.)
• Remove connector at the control P.C. board
assembly side.
2) Remove the lead wires and connectors that are
connected from the control P.C. board assembly to
the other parts.
1. Lead wires:
Connected to the power supply terminal block;
3 pcs.
Black, White, Orange (Single phase), Red,
White, Black, Orange (3 phases)
Earth wire (Black); 1 pc
2. Connector
Connected to compressor;
(3P: Relay connector White)
Reactor (2P: Relay connector White) ∗ (NOTE 1)
CN300; Outdoor fan (3P: White) ∗ (NOTE 1)
CN701; 4-way valve (3P: Yellow) ∗ (NOTE 1)
CN700; PMV coil (6P: White)
CN601; TD sensor (3P: White)
CN603; TS sensor (3P: White) ∗ (NOTE 1)
CN600; TE sensor (2P: White) ∗ (NOTE 1)
CN602; TO sensor 2P: White)
CN500; Case thermo + Pressure SW (2P: Blue)
∗ (NOTE 1)
CN605; Sub SW P.C. base (3P: Black)
NOTE 1):
Unlock the lock of the housing part and then remove
the connector.
3) Remove the inverter box (Sheet metal).
4) Remove the control P.C. board assembly from
P.C. board base.
(For the heat sink and the control P.C. board
assembly, remove them as they are screwed.)
NOTE 2):
Take off claws (4 positions) of P.C. board base, hold the
heat sink and then remove it upward.
5) Take off 2 screws that fix the heat sink and the
control P.C. board assembly.
6) Mount a new control P.C. board assembly.
NOTE 3):
Mount a new control P.C. board assembly while it is
correctly inserted in the P.C. board-receiving groove.
Mount it so that the heat sink surely contact with the
sheet metal.
Remarks
Power supply cable Power supply cable
Earth screw Earth screw
Power supply cable
Earth screw
Inverter box Inverter box
(Sheet metal)
(Sheet metal)
Control P.C. Control P.C.
board assembly board assembly
P.C. board base P.C. board base
Inverter box
(Sheet metal)
Control P.C.
board assembly
P.C. board base
Control P.C. Control P.C.
board assembly
board assembly
Hooking claws (4 positions) Hooking claws (4 positions)
Heat sink Heat sink
Hooking claws (4 positions)
Heat sink
P.C. board P.C. board
base base
Control P.C.
board assembly P.C. board
base