Panasonic CS-C18CKE / CU-C18CKE / CS-C24CKE / CU-C24CKE Service Manual ▷ View online
8 Operation Details
8.1. Indoor Fan Speed Control
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• Auto Fan Speed Control
When set to Auto Fan Speed, the fan speed is adjusted between maximum and minimum setting as shown in the table.
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• Manual Fan Speed Control
Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection button at the remote
control.
control.
COOL / DRY
CS-C24CKE
CS-C18CKE
S Hi
1530
1310
Hi
1480
1280
Me
1350
1210
Lo+
1300
1170
Lo
1220
1140
Lo-
1070
980
S Lo
830
760
Q Hi
1380
1200
Q Me
1250
1130
Q Lo
1120
1060
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CS-C18CKE CU-C18CKE / CS-C24CKE CU-C24CKE
Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
7 minutes Time Save 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
Anti-Dew Formation 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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• 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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• Purpose is to prevent dew formation on indoor unit air discharge area.
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• When room temperature is constant (±1°C) the following conditions occur for 30 minutes continuously, anti-dew formation will
activate:
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− Indoor intake air temperature is more than 24°C and less than 30°C.
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− Remote Control setting temperature is less than 25°C.
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− Compressor is on.
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− Cooling operation mode.
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− Indoor Fan motor operate at Low fan speed or QLo.
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• This control is cancelled immediately when above condition is changed.
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• Anti-Dew formation is control by:
1. Lo fan speed
Lo fan is changed to Lo+ fan
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CS-C18CKE CU-C18CKE / CS-C24CKE CU-C24CKE
Automatic Fan Speed Mode
2. QLo fan speed (Transistor Motor)
3. QLo fan speed (Induction Motor)
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-C18CKE CU-C18CKE / CS-C24CKE CU-C24CKE
Cooling Operation Time Diagram
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
3 dB, 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:
i) For Transistor Motor
Quiet Lo Cool is operated only 1h 30 minute (1h QLo, 30 min QLo+100). After that, it goes back to QLo+180 rpm. (However
quiet LED remains on).
quiet LED remains on).
ii) For Induction Motor
Quiet Lo Cool is operated only 1h 30 minute (1h QLo, 30 min QLo+80). After that, it goes back to QLo+170 rpm. (However quiet
LED remains on).
LED remains on).
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CS-C18CKE CU-C18CKE / CS-C24CKE CU-C24CKE
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