Panasonic CS-PA7CKE / CU-PA7CKE / CS-PC7CKE / CU-PC7CKE / CS-PA9CKE / CU-PA9CKE / CS-PC9CKE / CU-PC9CKE / CS-PA12CKE / CU-PA12CKE / CS-PC12CKE / CU-PC12CKE Service Manual ▷ View online
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1. The inside and outside connecting cable can be connected
without removing the front grille.
2. Connecting cable between indoor unit and outdoor unit
shall be approved polychloroprene sheathed 3 (PC7CKE,
PC9CKE, PC12CKE) or 5 (PA7CKE, PA9CKE, PA12CKE)
x 1.5 mm
PC9CKE, PC12CKE) or 5 (PA7CKE, PA9CKE, PA12CKE)
x 1.5 mm
2
flexible cord, type designation 245 IEC 57 or
heavier cord. For PA7CKE, PA9CKE, PA12CKE, the
attached wire 6
attached wire 6
with two connectors should be applied.
• Ensure the color of wires of outdoor unit and the
terminal Nos. are the same to the indoor’s respectively.
• Earth lead wire shall be longer than the other lead wires
as shown in the figure for the electrical safety in case of
the slipping out of the cord from the anchorage.
the slipping out of the cord from the anchorage.
• Secure the cable onto the control board with the holder
(clamper).
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Please follow the steps below to take out front grille if
necessary such as when servicing.
necessary such as when servicing.
1. Set the vertical airflow direction louver to the horizontal
position.
2. Slide down the two caps on the front grille as shown in the
illustration at right, and then remove the two mounting
screws.
screws.
3. Pull the lower section of the front grille towards you to
remove the front grille.
When reinstalling the front grille, first set the vertical
airflow direction louvre to the horizontal position and
then carry out above steps 2 - 3 in the reverse order.
airflow direction louvre to the horizontal position and
then carry out above steps 2 - 3 in the reverse order.
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The below operations will be performed by pressing the
“AUTO” switch.
“AUTO” switch.
1. AUTO OPERATION MODE
The Auto operation will be activated immediately once the
Auto Switch is pressed.
Auto Switch is pressed.
2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING
PURPOSE)
The Test Run operation will be activated if the Auto Switch
is pressed continuously for more than 5 sec. to below 10
sec.
is pressed continuously for more than 5 sec. to below 10
sec.
A “pep” sound will occur at the fifth sec., in order to identify
the starting of Test Run operation
the starting of Test Run operation
3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF
The ON/OFF of Remote Controller receiving sound can be
changed over by pressing the “AUTO” Switch continuously
for 10 sec. and above. A “pep”, “pep” sound will occur at the
tenth sec., in order to indicate the “ON/OFF” changed over
of remote control receiving sound.
changed over by pressing the “AUTO” Switch continuously
for 10 sec. and above. A “pep”, “pep” sound will occur at the
tenth sec., in order to indicate the “ON/OFF” changed over
of remote control receiving sound.
49
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1. Connect the power supply cord to independent power
supply.
• Circuit breaker is necessary.
2. Prepare the remote control
• Insert two batteries
• Remove the cover from the back of the remote control.
• Remove the cover from the back of the remote control.
Insert two batteries
• Be sure that the (+) and (-) directions are correct.
• Be sure that both batteries are new.
• Re-attach the cover.
• Slide the cover back into position.
• Be sure that both batteries are new.
• Re-attach the cover.
• Slide the cover back into position.
3. Operate the unit at cooling mode operation for 15 minutes
or more.
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1. Operate the air conditioner for 15 minutes.
2. Measure the temperature of the intake and discharge air.
3. Ensure the difference of temperature between the intake
and discharge air is more than 8°C, in cooling operation, or
more than 14°C in heating operation.
more than 14°C in heating operation.
50
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2-way Valve (Liquid Side)
3-way Valve (Gas Side)
Works
Shaft Position
Shaft Position
Service Port
Shipping
Close
Closed
Closed
(With valve cap)
(With valve cap)
(With cap)
Air purging (Installation and Re-
installation)
Open
Closed
Open
(Counter-clockwise)
(clockwise)
(Push-pin)
Operation
Open
Open
Closed
(Counter-clockwise)
(With valve cap)
(With cap)
Pumping down
Closed
Open
Open
(transfering)
(clockwise)
(counter-clockwise)
(Connected manifold
gauge)
Evacuation
Open
Open
Open
(Servicing)
With vacuum pump
Charging
Open
Open
Open
(servicing)
(With charging cylinder)
Pressure check
Open
(Servicing)
Open
Open
(Connected manifold
gauge)
Gas releasing
Open
(Servicing)
Open
Open
(Connected manifold
gauge)
51
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hexagonal wrench, adjustable wrench, torque wrench,
wrench to hold the joints, gas leak detector, charging set
and vaccuum pump
wrench to hold the joints, gas leak detector, charging set
and vaccuum pump
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Be sure to connect the end of the charging hose with the
push pin to the service port.
push pin to the service port.
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The air in the indoor unit and in the piping must be purged.
If air remains in the refrigeration piping, it will affect the
compressor, reduce to cooling capacity, and could lead to a
malfunction.
If air remains in the refrigeration piping, it will affect the
compressor, reduce to cooling capacity, and could lead to a
malfunction.
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Be sure to check for gas leakage.
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If gauge needle does not move from 0 cmHg (0MPa) to -76
cmHg (-0.1MPa) in step (3) above, take the following
measures:
If the leaks stop when the piping connections are tightened
further, continue working from step (3).
If the leaks do not stop when the connections are retightened,
repair the location of the leak.
cmHg (-0.1MPa) in step (3) above, take the following
measures:
If the leaks stop when the piping connections are tightened
further, continue working from step (3).
If the leaks do not stop when the connections are retightened,
repair the location of the leak.
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Be sure, using a torque wrench to tighten the service port cap (after using the service port), so that it prevents the gas leakage
from the refrigeration cycle.
from the refrigeration cycle.
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52
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