135
OPERATING PROCEDURE
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 connectors, TH6 and TH7 (red), on the
controller circuit board in the control box.
Loosen the fastener and the wire clip on the control box and
unbind the lead wires.
(4)
Loosen the clamp for the lead wire in the top of the control 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>,
<Ambient> (TH7) since they are combined together.
Refer to procedure 5 to remove thermistor
<Outdoor>, <Ambient>.
5. Removing the thermistor <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 control box.
Loosen the fastener and the cable strap on the control box
and unbind the lead wires.
(4) Loosen the clamp for the lead wire in the top of the control
box. (See Photo 5)
(5) Pull out the thermistor <Ambient> (TH7) from the sensor
holder.
Note: When replacing thermistor <Outdoor>, <Ambient>
(TH7), replace it together with thermistor <Outdoor
2-phase pipe> (TH6), since they are combined
together.
Refer to procedure 4 to remove thermistor <Outdoor
2-phase pipe>.
Photo 7
6. Removing the thermistor <Outdoor pipe> (TH3), thermistor
<Discharge> (TH4) and thermistor <Comp.Surface>(TH32)
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3)
Disconnect the connectors, TH3 (white) and TH4 (white),
TH32 (black) on the controller circuit board in the control box.
Loosen the fastener and the cable strap on the control box
and unbind the lead wires.
(4) Loosen the clamp for the lead wire in the top and rear of
the control box. (See Photo 5)
(5) Pull out the thermistor <Outdoor Pipe> (TH3) (See Photo 8)
and thermistor <Discharge> (TH4) from the sensor holder.
[Removing the thermistor <Comp.Surface> (TH32)] for
VHA3R2, VHA3R3 and YHA
(6) Pull out the thermistor <Comp.Surface> (TH32) from the
holder of the compressor shell.
(7)
Loosen the clamp on the separator and unbind the lead wires.
Photo 6
Lead wire of thermistor
<Outdoor> (TH7)
Sensor holder
Photo 4 (PUHZ-P125,140Y)
Thermistor
<Discharge>
(TH4)
Compressor (MC)
Thermistor
<Outdoor 2-phase pipe> (TH6)
Clamps
Electrical parts box
Photo 5
Terminal block (TB1)
Terminal block (TB2)
Electrical parts
box fixing
screws
From the previous page.
Wire clip
OCH415G
