Panasonic CS-XC9CKT / CU-XC9CKT / CS-XC12CKT / CU-XC12CKT Service Manual ▷ View online
Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
7 minutes Time Save Control
Starting Current Control
Anti-Freezing Control
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• If the temperature of the indoor heat exchanger falls
continuously below 2°C for 4 minutes or more, the
compressor turns off to protect the indoor heat exchanger
from freezing. The fan speed setting remains the same.
compressor turns off to protect the indoor heat exchanger
from freezing. The fan speed setting remains the same.
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• Compressor will restart again when the indoor heat
exchanger temperature rises to 10°C (Recovery).
3 minutes waiting of Time Delay Safety Control is valid for
Cooling Operation.
Cooling Operation.
Compressor Reverse Rotation Protection Control
8.2. Cooling Mode Operation
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• When the compressor is stopped by Remote Control, it restarts after 3 minutes when the Remote Control is turned ON.
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• When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
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• The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is between the compressor
ON temperature and OFF temperature.
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• When the compressor outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will operate 1.6
second later.
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• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and
indoor heat exchanger is 2.5°C or less for 2 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid)
(Time Delay Safety Control is valid)
! T = Intake air temperature - Indoor heat exchanger temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
Automatic Fan Speed Mode
Cooling Operation Time Diagram
When Automatic Fan Speed is selected at Remote Control during cooling operation.
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• Fan speed rotates in the range of Hi to Me.
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• Deodorizing Control.
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
Quiet Operation Control
(For Cooling Mode or cooling region of Soft Dry Mode)
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• Purpose of this operation is to provide quite cooling operation compare to normal operation.
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• When the Quiet Mode is set at the remote control, Quiet Mode LED illuminates, the sound level will be automatically decreased
2 dB (Lo), decreased 3 dB (Hi, Me), against the present sound level operation.
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• Quiet setting of fan speed rpm refer to Indoor Fan Speed Control.
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• Dew formation become severe at Quiet Lo cool, therefore Quiet Lo cool is operated only 1h 30 min (1h QLo, 30 min QLo + 50).
After that, it goes back to Lo cool (However Quiet LED remains on).
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• Manual Fan Speed:-
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− RPM control during Lo cool
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− RPM control during Hi & Me cool
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• Auto Fan Speed:-
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• Quiet Mode Operation will stop if:-
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− Quiet mode button is pressed again.
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− Stopped by ON/OFF switch.
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− Timer OFF activates.
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− When change mode to Air Circulation mode.
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
Time Delay Safety Control
Starting Current Control
Anti-Freezing Control
Compressor Reverse Rotation Protection Control
Automatic Fan Speed Mode
8.3. Soft Dry Mode Operation
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• The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and
then Soft Dry operation will start.
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• During Soft Dry operation, the Indoor Fan will operate at Lo- speed.
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• The operation will be switched on and off for up to 10 minutes “ON” and 6 minutes “OFF”. Once Soft Dry operation is turned
off, it stops for 6 minutes.
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• Once the compressor stops, it will not start for 3 minutes during Cooling operation.
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• Same as Starting Current Control for Cooling Mode operation.
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• Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during compressor
stops.)
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• Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation. (For Soft Dry region, 6 minutes waiting
is valid during compressor stops.)
When Automatic Fan Speed is selected at Remote Control during Soft Dry operation.
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• Fan speed off and on at Lo- speed.
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• Deodorizing Control.
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CS-XC9CKT CU-XC9CKT / CS-XC12CKT CU-XC12CKT
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