OPERATING PROCEDURE
78
PHOTOS
4. Removing the thermistor <Outdoor 2-phase pipe> (TH6)
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3)
Disconnect the connector TH3/TH6 (red) on the controller
circuit board in the electrical parts box.
(4)
Loosen the clamp for the lead wire in the rear 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
pipe> (TH3), since they are combined together.
Refer to procedure 5 below to remove thermistor
<Outdoor pipe>.
<Except PU(H)-P125, 140YHAR4.UK>
5.
Removing the thermistor <Outdoor pipe> (TH3) and
thermistor <Discharge> (TH4)
(1) Remove the service panel. (See Figure 1)
(2)
Disconnect the connectors, TH3/TH6 (red) and TH4 (white),
on the controller circuit board in the electrical parts box.
(3) Loosen the clamp for the lead wire.
(4)
Pull out the thermistor <Outdoor pipe> (TH3) and
thermistor <Discharge> (TH4) from the sensor holder.
Note: When replacing thermistor <Outdoor pipe> (TH3),
replace it together with thermistor <Outdoor 2-phase
pipe> (TH6), since they are combined together.
Refer to procedure 4 above to remove thermistor
<Outdoor 2-phase pipe>.
Photo 5
Thermistor
<Discharge>
(TH4)
Thermistor <Outdoor pipe>
(TH3)
Photo 4
Thermistor
<Outdoor 2-phase pipe>
(TH6)
Clamp
Electrical
parts box
<PU(H)-P125, 140YHAR4.UK>
5.
Removing the thermistor <Compressor surface> (TH4)
(1) Remove the service panel. (See Figure 1)
(2)
Disconnect the connectors, TH3/TH6 (red) and TH4 (white),
on the controller circuit board in the electrical parts box.
(3) Loosen the clamp for the lead wire.
(4)
Pull out the thermistor <Compressor surface> (TH4) from
the sensor holder.
Note: When replacing thermistor <Outdoor pipe> (TH3),
replace it together with thermistor <Outdoor 2-phase
pipe> (TH6), since they are combined together.
Refer to procedure 4 above to remove thermistor
<Outdoor 2-phase pipe>.
Thermistor <Compressor surface>
(TH4)
<Except PU(H)-P125, 140YHAR4.UK>
<PU(H)-P125, 140YHAR4.UK>
OC379F