Panasonic Cs C9gkzw Cs C12gkzw Cu C9gkzw Cu C12gkzw Repair Manual

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11.2. Indoor Unit
11.2.1. How To Fix Installation Plate
The mounting wall is strong and solid enough to prevent it from
the vibration.
The centre of installation plate should be at more than 450 mm
at right and left of the wall.
The distance from installation plate edge to ceiling should more
than 67 mm.
From installation plate left edge to units left side is 74 mm.
From installation plate right edge to units right is 94 mm.
1. Mount the installation plate on the wall with 5 screws or
more.
(If...

22 For the embedded piping
Pull out the piping and drain hose
How to keep the coverInsert the connecting cable
Install the Indoor unit
Secure the Indoor Unit
(This can be used for left rear piping & left bottom piping 
also.) 

23 • How to pull the piping and drain hose out, in case of the
embedded piping.
• In case of left piping how to insert the connecting cable and
drain hose.
11.2.4. Connect The Cable To The Indoor
Unit
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 4 × 1.5mm
2
flexible cord, type designation 245 IEC 57 or heavier
cord.
• Ensure the colour of wires of outdoor...

24 Connecting The Piping To Outdoor Unit
Decide piping length and then cut by using pipe cutter. Remove
burrs from cut edge. Make flare after inserting the flare nut
(locate at valve) onto the copper pipe. Align center of piping to
valves and then tighten with torque wrench to the specified
torque as stated in the table.CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not
removed, gas leakage may be caused. Turn the...

25 4(A). Checking gas leakage for the left piping
11.3.4. Connect The Cable To The Outdoor
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 4 × 1.5 mm
2
flexible cord, type designation 245 IEC 57 or heavier
cord.
3. Secure the cable onto the control board with the holder
(clamper).
4. Cable connection to the power supply (220-240V, 50Hz)
through knife switch (Disconnecting...

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12 Operation and Control
12.1. 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°C to
30°C.
• During cooling operation, the compressor will stop running and restart as shown in below figure.
12.1.1. Cooling Operation Time Diagram 

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12.2. 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”
for a minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on...

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12.3. Automatic Operation
• Automatic operation can be set using remote control.
• This operation starts to operate with indoor fan at SLo speed for 20 seconds to judge the intake air temperature.
• After judged the temperature, the operation mode is determined by referring to the below standard.
• Then, the unit start to operate at determined operation mode, until it is switched off using remote control, with the setting
temperature as shown in below table.
• The setting temperature for all the...

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12.4. Operation Control
12.4.1. Restart Control (Time Delay Safety Control)
•When the thermo-off temperature (temperature which compressor stops to operate) is reached during:-
- Cooling operation - the compressor stops for 3 minutes (minimum) before resume operation.
- Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation.
• If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation
stop, although...

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12.4.5. Freeze Preventive Control
• To protect indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form return to compressor.
• This control will activate when the temperature of indoor heat exchanger falls below 2°C continuously for more than 4 minutes.
• The current fan speed will change to freeze prevention speed after 70 seconds compressor on. When indoor pipe temperature
reaches certain temperature for 5 sec. the speed will be increased as in below figure.
•...