103
OPERATING PROCEDURE
PHOTOS
Photo 5
4. Removing the thermistor <2-phase pipe> (TH6)
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Disconnect the connectors, TH6 and TH7 (red), on the
controller circuit board in the electrical parts box.
Loosen the fastener and the wire clip on the electrical parts
box and unbind the lead wires.
(4) Loosen the clamp for the lead wire in the top of the electrical
parts box.
(5) Pull out the thermistor <2-phase pipe> (TH6) from the
sensor holder.
Note: When replacing thermistor <2-Phase Pipe> (TH6),
replace it together with thermistor <Ambient> (TH7),
since they are combined together.
Refer to procedure 5 below to remove thermistor
<Ambient>.
5. Removing the thermistor <Outdoor>, <Ambient> (TH7)
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Disconnect the connector TH6 and TH7 (red) on the
controller circuit board in the electrical parts box.
Loosen the fastener and the wire clip on the electrical parts
box and unbind the lead wires.
(4) Loosen the clamp for the lead wire in the top of the
electrical parts box. (See Photo 5)
(5) Pull out the thermistor<Ambient> (TH7) from the sensor
holder.
Note: When replacing thermistor <Ambient> (TH7), replace
it together with thermistor <2-Phase Pipe> (TH6), since
they are combined together.
Refer to procedure 4 above to remove thermistor
<2-Phase Pipe>.
Lead wire of thermistor
<Ambient> (TH7)
Sensor holder
Thermistor
<2-phase pipe> (TH6)
Clamps
Electrical parts box
Photo 4 (PUHZ-SP100Y)
Terminal block (TB1)
Terminal block (TB2)
Electrical parts
box fixing
screws
From the previous page.
Wire clip
Photo 6
OCH566A
