Panasonic CS-A7GKD / CU-A7GKD / CS-A9GKD / CU-A9GKD / CS-A12GKD / CU-A12GKD Service Manual ▷ View online
29
11.3.4.
Connect The Cable To The Outdoor
Unit
Unit
1. Remove the control board cover from the unit by
loosening the screw.
2. Connecting cable between indoor unit and outdoor unit
shall be approved polychloroprene sheathed 3 (C7GK,
C9GK, C12GK) or 5 (A7GK, A9GK, A12GK) × 1.5 mm
2
flexible cord, type designation 245 IEC 57 or heavier
cord.
cord.
3. Secure the cable onto the control board with the holder
(clamper).
4. Attach the control board cover back to the original
position with the screw.
11.3.5.
Pipe Insulation
1. Please carry out insulation at pipe connection portion as
mentioned in Indoor/Outdoor Unit Installation Diagram.
Please wrap the insulated piping end to prevent water
from going inside the piping.
Please wrap the insulated piping end to prevent water
from going inside the piping.
2. If drain hose or connecting piping is in the room (where
dew may form), please increase the insulation by using
POLY-E FOAM with thickness 6mm or above.
CAUTION
• If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:
• If the leak stops when the piping connections are tightened further, continue working from step 3.
• If the leak does not stop when the connections are retightened, repair the location of leak.
• Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause frostbite.
• If the leak stops when the piping connections are tightened further, continue working from step 3.
• If the leak does not stop when the connections are retightened, repair the location of leak.
• Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause frostbite.
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12 Operation and Control
12.1. Heating Operation
• Heating operation can be set using remote control.
• This operation is applied to warm the room temperature reaches the setting temperature set on the remote control.
• The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 16
• This operation is applied to warm the room temperature reaches the setting temperature set on the remote control.
• The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 16
°C to
30
°C.
• During heating operation, the compressor will stop running and restart as shown in below figure.
12.1.1.
Heating Operation Time Diagram
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12.2. Cooling Operation
• Cooling operation can be set using remote control.
• This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control.
• The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 16
• This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control.
• The remote control setting temperature, which takes the reading of intake air temperature sensor, can be adjusted from 16
°C to
30
°C.
• During cooling operation, the compressor will stop running and restart as shown in below figure.
12.2.1.
Cooling Operation Time Diagram
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12.3. Soft Dry Operation
• Soft Dry operation can be set using remote control.
• Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room.
• This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control.
• When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be turned “OFF”
• Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room.
• This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control.
• When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be turned “OFF”
for a minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on the setting temperature as shown in
below figure.
below figure.
• However after 3 minutes of compressor off, during Soft Dry “OFF” (within 6 minutes Soft Dry restart control), the indoor unit will
start to operate at normal Cooling mode if the intake temperature is higher than Cooling “ON” point.
12.3.1.
Soft Dry Operation Time Diagram
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