OCH790 _108
•
Thermistor <Suction pipe/Ambient> (TH6/7)
•
High pressure switch (63H)
• High pressure sensor (63HS)
•
Low pressure sensor (63LS)
•
4-way valve (21S4)
•
Bypass valve (SV1)
Pull out the disconnected wires from the electrical parts box.
5. Remove the terminal cover and disconnect the compressor lead wire.
6.
Remove 2 electrical parts box fixing screws (4 × 10) and detach the electrical parts box by pulling it upward.
The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right.
Photo 4
Front panel
fixing screws
(4 x 10)
Electrical
parts box
Terminal cover
Cover panel (Front)
Valve bed
Terminal block
(TB1)
Terminal block
(TB1B)
Outdoor multi
controller circuit
board (MULTI.B)
Terminal blocks
(TB3) (TB7)
Compressor (MC)
Front panel fixing screws (5 x 12)
Front panel
fixing screws (5 x 12)
Valve bed
fixing screws
Cover panel fixing screws
Cover panel (Rear)
Photo 5
Electrical parts box
Hooks
Hook
Electrical
parts box
fixing screws
4. Removing the thermistor <Suction pipe> (TH6)
1. Remove the service panel. (See Photo 1)
2.
Remove the top panel. (See Photo 1)
3.
Disconnect the connectors TH6 and TH7 (red) on the outdoor multi controller circuit board in the electrical parts box.
4. Loosen the wire clamps on the side of the electrical parts box.
5.
Pull out the thermistor <Suction pipe> (TH6) from the sensor holder.
Note:
•
When replacing thermistor <Suction pipe> (TH6), replace it together with thermistor <Ambient> (TH7) since they are
combined together. Refer to procedure No.5 to remove thermistor <Ambient> (TH7).
Photo 6
Clamps
Electrical
parts box
Photo 7
Thermistor
<Suction pipe> (TH6)
Thermistor
<Compressor> (TH4)
Ball valve and
stop valve fixing
screws
Thermistor
<HIC pipe> (TH2)
5. Removing the thermistor <Ambient> (TH7)
1. Remove the service panel. (See Photo 1)
