Panasonic Cs W7ckp Cs W9ckp Cs W7ckp Series Repair Manual

Time DelaySafety Control
Starting Current Control
Anti-Freezing Control
Compressor Reverse Rotation Protection Control
Compressor Protection Control
Automatic Fan Speed Mode
8.2. Soft Dry Mode Operation
 • 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.
 • During Soft Dry operation, the Indoor Fan will operate at Lo- speed.
 • The operation will be switched on and off for up to 10...

Soft Dry Operation Time Diagram
Quiet Operation Control
(For Dry region at Soft Dry Mode)
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CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5 

Heating in operation according to Remote Control setting.
Time DelaySafety Control
30 minutes TimeSave Control
Overload Protection Control
(b) Compressor high pressure protection
Compressor Reverse Rotation Protection Control
4-way Valve Control
Outdoor Fan Motor Control
Indoor Fan Motor Control
8.3. Heating Mode Operation
 • W hen the compressor is stopped by Remote Control, it restarts after 3 minutes when the Remote Control is turned ON.
 • W hen the setting temperature is reached during heating...

Hot Start Control
Anti Cold Draft Control
WhenHeating operation starts, Indoor Fan will not start until the indoor heat exchan ger reaches 30°C as diagram shown.
Hot Start is completed when indoor heat exchan ger rises to 39°C or over 4 minutes.
 • This operation is to prevent the Cold Draft during Heating mode operation.
 • The operation will start when compressor OFF (Thermo OFF) during Heating operation.
 • For the first 30 sec. from compressor OFF (Thermo OFF), Indoor fan speed will operate...

Automatic Fan Speed Mode
Heating Operating Time Diagram
WhenAutomatic Fan Speed is selected at Remote Control during heating operation.
 • Fan speed rotates in the range of Me
→SLo according to the heat exchan ger temperature.
 • If use Manua l Fan Speed,at above diagram will operate with setting Fan Speed.
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CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5 

Deicing Control
Deice starts to prevent frosting at outdoor heat exchan ger.
 • Normal Deicing
Deice operations detection commences after 30 minutes of Heating operation starts or 60 minutes after previous deice
operation. If the TRS (Thermal Reed Switch) senses the outdoor piping temperature drops to -3°C (TRS CLOSE) or less for
50 sec. continuously during compressor is in operation, deice willstart.
(There is no detection during Outdoor Fan stops.)
 • Overload Deicing
During heating operation, if the...

Normal Deicing Time Diagram
Overload Deicing Time Diagram
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CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5 

Quiet Operation Control
(For Heating Mode)
 • Purpose of this operation is to provide quite heating operation compare to normal operation.
 • W hen 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.
 • Quiet setting of fan speed rpm refer to Indoor Fan Speed Control.
 • Manual Airflow Direction:-
 − Rpm control during Lo, Me & Hi Cool
 • Auto Airflow...

8.4. Automatic Mode Operation
 1. When theAutomatic Mode Operation is selected, the indoor fan operates at SLo fan speed for 25 seconds to sense intake air
temperature and determine the 1st operation mode.
 2. Operation mode will be determine again after 1 hour of operation, if the room temperature reaches to set temperature and
compressor off time is over 7 minutes 30 seconds continuously.
The present operation mode will be continued, if the room temperature does not reach to set temperature (Compressor...

8.5. Random Auto Restart Control
 • If there is a power failure during air conditio ner operation, operation will be automatically restarted after 3 to 4 minutes when the
power is resumed. It will start with previous operation mode and airflow direction.
 • Restart time is decided randomly using 4 parameter:
Intake air temperature, setting temperature, fan speed and Air Swing Blade position .
 • Random Auto Restart Control is not available when Timer is set.
 • This control can be omitted by open the...