Panasonic CS-A18CKE / CU-A18CKE / CS-A24CKE / CU-A24CKE Service Manual ▷ View online
6
Block
Diagram
13
C
S
-A18C
K
E
CU-A
CU-A
18CK
E
/
/
CS-A2
4
C
K
E
CU-
CU-
A24C
K
E
7 Wiring Diagram
CS-A18CKE CU-A18CKE / CS-A24CKE CU-A24CKE
14
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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•
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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.
Speed COOL, DRY
Heat
CS-A24CKE
CS-A18CKE
S Hi
Hi
1610
1400
Hi
1530
1360
Me
Me
1430
1290
Lo+
Lo
1360
1240
Lo
1260
1160
Lo-
Lo-
1070
980
S Lo
S Lo
830
760
SS Lo
SS Lo
300
300
Q SHi
Q Hi
1510
1300
Q Hi
1430
1260
Q Me
Q Me
1330
1190
Q Lo
1260
1140
Q Lo
1160
1060
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CS-A18CKE CU-A18CKE / CS-A24CKE CU-A24CKE
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.
•
•
•
• 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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•
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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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•
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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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•
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• Purpose is to prevent dew formation on indoor unit air discharge area.
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•
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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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−
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− Indoor intake air temperature is more than 24°C and less than 30°C.
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−
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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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•
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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-A18CKE CU-A18CKE / CS-A24CKE CU-A24CKE
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