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OPERATING PROCEDURE
4. Removing the thermistor <Plate HEX Liquid> (TH6)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove 2 screws (5
12) and remove the cover panel (front). (See Photo 1)
×
(4) Remove 3 valve bed fixing screws (4
valve bed. Remove 3 side panel (R) fixing screws (5
and remove the side panel (R). (See Photo 4)
(5) Disconnect the connector TH7/6 (RD) on the controller circuit board.
(6) Loosen the clamps for the lead wire.
(7) Pull out the thermistor <Plate HEX Liquid> (TH6) from
the sensor holder.
Note: In case of replacing thermistor <Plate HEX Liquid>(TH6),
replace it together with thermistor<Ambient> (TH7),
since they are combined together.
Refer to No.5 below to remove thermistor <Ambient>.
5. Removing the thermistor <Ambient> (TH7)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the connector TH7/6 (RD) on the controller
circuit board.
(4) Loosen the clamps for the lead wire.
(5) Pull out the thermistor <Ambient> (TH7) from the sensor
holder.
Note: In case of replacing thermistor <Ambient>(TH7),
replace it together with thermistor <Plate HEX Liquid>
(TH6), since they are combined together.
Refer to No.4 above to remove thermistor <Plate HEX
Liquid>.
6. Removing the thermistor <Liquid> (TH3) and
thermistor <Discharge> (TH4), thermistor <Comp. Surface>
(TH34)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove 2 screws (5
×
(See Photo 1)
(4) Remove 3 valve bed fixing screws (4
valve bed. Remove 3 side panel (R) fixing screws (5
and remove the side panel (R). (See Photo 4)
(5) Disconnect the connectors, TH3 (WH), TH4 (WH), and
TH34 (WH) on the controller circuit board.
(6) Loosen the clamps for the lead wire.
(7) Pull out the thermistor <Liquid> (TH3) (See Photo 5) and
thermistor <Discharge> (TH4) from the sensor holder.
[Removing the thermistor <Comp. Surface> (TH34)]
(8) Pull out the thermistor <Comp. Surface> (TH34) from the
holder of the compressor shell.
7. Removing the thermistor <Inlet Water> (TH32)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove 2 screws (5
×
(See Photo 1)
(4) Remove 3 valve bed fixing screws (4
valve bed. Remove 3 side panel (R) fixing screws (5
and remove the side panel (R). (See Photo 4)
(5) Disconnect the connectors, TH32 (BK) on the controller
circuit board.
(6) Loosen the clamp for the lead wire.
(7) Remove the thermistor <Inlet Water> (TH32) from the plate
heat exchanger.
Note: Before removing the thermistor<Inlet Water> (TH32),
recover water in the plate heat exchanger.
OCH605A
10) and remove the
×
12) and remove the cover panel (front).
10) and remove the
×
12) and remove the cover panel (front).
10) and remove the
×
Photo 5
12)
×
Receiver
Photo 6
Sensor holder for thermistor <Ambient> (TH7)
Photo 7
12)
×
Thermistor
<Discharge>
(TH4)
Thermistor
<Comp. Surface>
(TH34)
Photo 8
12)
×
Thermistor
<Inlet Water>
(TH32)
48
PHOTOS
Thermistor
<Liquid>(TH3)
Plate heat
exchanger
Thermistor
<Plate HEX Liquid>
(TH6)
Plate heat exchang-
er fixing screw
Plate heat
exchanger
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