Panasonic Cs A7dkd Cs A9dkd Cs A12dkd Repair Manual

 • Auto Fan Speed during cooling operation:
 1. Indoor fan will rotate alternately between off and on as shown in below diagram.
 2. At the beginning of each compressor start operation,indoor fan will increase fan speed gradually for deodorizing purpose.
 3. For the first time the compressor operate, indoor fan will be switched to Hi fan speed from Lo- after 70 seconds from the
start of compressor. This cause the roomtemperature to achieve the setting temperature quickly.
 4. During compressor stop,...

(Cooling and Soft Dry Operation condition)
 • When the vertical airflow direction is set to Auto using the
remote control, the louver swings up and down as shown in
the diagram.
 • When stop operation using the remote control, the
discharge vent is reset, and stop at the closing position.
 • During Cooling operation or Soft Dry operation, indoor fan
motor may stop to rotate at certain periods. At that
condition, the louver will stop swinging and rest at the upper
limit.
 • During Anti-dew condensation...

(Heating Operation condition)
 • When the piping air temperature reaches 38°C, the
louver is changed from upper to lower limit. When the
piping air temperature falls to 35°C, the louver is
changed from lower to upper limit.
Cooling and Soft Dry Operation
(Cooling and Soft Dry Operation condition)Heating Operation
Heating Operation
8.8.2. Manual Control
 • When the vertical airflow direction is set to Manual using the remote control, the automatic airflow is released and the airflow
direction louver move...

 • Vertical Airflow Direction:-
 − In “Manual” setting, the vane will automatically shift down 5° lower than previous setting.
 − In “Auto” setting, the vane will automatically shift between upper and lower limit depending on the intake air temperature
as Heating Mode, Airflow Direction Auto-Control. However the upperand lower limit will be shifted 5° downward.
 • Powerful operation stops when:-
 − Powerful operation has operate for 15 minutes.
 − Powerful button is pressed again.
 − Quiet button is...

8.11. Quiet Operation
 • The Quiet operation is to provide quiet cooling/heating operation condition compare to normal operation.
(Cooling and Soft Dry Operation condition)
 • Once the Quiet Mode is set at the remote control, Quiet Mode LED illuminates. The sound level will reduce either around
2 dB(A) for Lo fan speed or 3 dB(A) for Hi/Me fan speed against the present sound level operation.
 • Dew formation become severe at Quiet Lo cool, therefore Quiet Locool is operated only 1hr 30min (1hr QLo, 30...

(Heating Operation condition)
 • When the Quiet Mode is set at the remote control, Quiet Mode LED illuminates. The sound level will reduce either around
2 dB (Lo) or 3 dB (Hi, Me), against the present sound level operation.
 • Quiet setting of fan speed rpm refer to Indoor Fan Speed Control.
 • Manual Fan Speed:-
 − Rpm control during Lo, Me & Hi Cool
 • Auto Fan Speed:-
 − Rpm control depends on the piping air temperature sensor of Indoor heat exchanger
 • Quiet operation stops when:-
 − Quiet button is...

8.12. Ionizer Operation
 • The Ionizer operation is to provide fresh air effect to user by producing minus ion in discharge air.
8.12.1. Operation Control
 1. Ionizer individual operation
 a. When air-conditioner unit is at “OFF” condition (standby) and ION operation button at the remote control is pressed, the
Ionizer and indoor fan operations will turn on. Only ION LED will illuminates. Power LED maintain off. (1→2)
 b. Ionizer individual operation can be turned off by pressing the ION button again....

8.12.2. Error Detection Control
 • The error detection control is to inform user that erroroccurs at ionizer system and repairing job will be needed.
 • There are two types of error detection control:
a. When Ionizer is ON
 − If ionizer feedback = Lo for 24 times within 11hr 30min, ION LED blinks continuously.
b. When ionizer is OFF
 − If ionizer feedback = Hi,ION LED blinks continuously.
 • During ionizer at breakdown condition, if ionizer feedback voltage = Lo (become normal), ION LED will stop...

9 Operating Instructions
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CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12D KD CU-A12D KD / 

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CS-A7DKD CU-A7DKD / CS-A9DKD CU-A9DKD / CS-A12D KD CU-A12D KD /