143
Photo 11
5. Removing the thermistor <Outdoor 2-phase pipe> (TH6)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the connector TH7/6 (red), on the controller
circuit board in the electrical parts box.
(4) Loosen the 2 wire clamps on top of the electrical parts box.
(5) Pull out the thermistor <Outdoor 2-phase pipe> (TH6) from
the sensor holder.
Note: When replacing thermistor <Outdoor 2-phase pipe>
(TH6), replace it together with thermistor <Outdoor>
(TH7) since they are combined together.
Refer to procedure No.6 below to remove thermistor
<Outdoor>.
6. Removing the thermistor <Outdoor> (TH7)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the connector TH7/6 (red) on the controller
circuit board in the electrical parts box.
(4) Loosen the 2 wire clamps on top of the electrical parts box.
(See Photo 11)
(5) Pull out the thermistor <Outdoor> (TH7) from the sensor
holder.
Note: When replacing thermistor <Outdoor> (TH7),
replace it together with thermistor <Outdoor 2-
phase pipe> (TH6), since they are combined together.
Refer to procedure No.5 above to remove
thermistor <Outdoor 2-phase pipe>.
Photo 13
Clamp
Thermistor
<Outdoor 2-phase pipe>(TH6)
7. Removing the thermistor <Outdoor pipe> (TH3) (TH33) and
thermistor <Discharge> (TH4), thermistor <Comp. surface>
(TH32)
(1) Remove the service panel. (See Photo 1)
(2) Disconnect the connectors, TH3 (white) and TH4 (white),
TH33 (yellow), TH32 (black) on the controller circuit board
in the electrical parts box.
(3) Loosen the clamp for the lead wire under the electrical
parts box.
(4) Pull out the thermistor <Outdoor pipe> (TH3), (TH33) and
thermistor <Discharge> (TH4) from the sensor holder.
(TH33: See Figure 1)
[Removing the thermistor <Comp. surface> (TH32)]
(5) Remove the sound proof cover (upper) for compressor.
(6) Pull out the thermistor <Comp. surface> (TH32) from the
holder of the compressor shell.
Electrical parts box
Photo 12
Lead wire of thermistor <Outdoor> (TH7)
Sensor holder
Thermistor <Outdoor pipe> (TH3)
Thermistor
<Discharge>
(TH4)
Photo 14
Compressor
Sound proof cover
Thermistor
<Comp. surface> (TH32)
OPERATING PROCEDURE
PHOTOS
OCH527C