Panasonic CS-W18MKD / CS-W24MKD / CU-W18MKD / CU-W24MKD Service Manual ▷ View online
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Auto Fan Speed during Heating operation.
o
Indoor fan will rotate in the range of SLo → Me according to the heat exchanger temperature.
12.5.2 Manual Fan Speed Control
Manual fan speed adjustment can be carried out by using the Fan Speed selection button at the remote control.
There are 3 types of fan speed settings: Lo, Me, Hi.
12.5.3 Indoor Fan Motor rpm Abnormal Control
Immediate after the fan motor is started, rpm abnormal control is performed every second.
During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continuously for 10 seconds, the fan motor
error counter increased; fan motor is then stopped and restarted. If the fan motor error counter increased to 7,
then air conditioner will stop operation.
then air conditioner will stop operation.
12.6 Outdoor Fan Speed Control
There is 2 speeds for outdoor fan motor. Outdoor fan speed can be changed to Hi or Lo according to outdoor
temperature.
For Cooling and Soft Dry operation, when outdoor temperature reaches to 31°C (Hi-speed), 29°C (Lo-speed).
For heating operation, when outdoor temperature reaches to 13.5°C (Hi-speed), 15.5°C (Lo-speed).
When air conditioner is turned on, the compressor and the outdoor fan will operate simultaneously.
Likewise, both compressor and outdoor fan will stop at the same time if the unit is turned off.
12.7 Vertical Airflow Direction Control
12.7.1 Auto
Control
(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 stops operation using the remote control, the discharge vent is reset and stops 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.
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(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 35°C, the louver is changed from lower to upper limit.
12.7.2 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 up and down in the range shown in the diagram.
The louver can be adjusted by pressing the button to the desired louver position.
When stop operation using the remote control, the discharge vent is reset, and stop at the closing position.
(Cooling and Soft Dry Operation Condition)
(Heating Operation condition)
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12.8 Horizontal Airflow Direction Control
For CS-W18MK and CS-W24MK the horizontal airflow direction louver are as following.
12.8.1 Auto Control
When the horizontal airflow direction is set to Auto using the remote control, the vanes swings left and right as
shown in the diagram.
When stopped with remote control, the discharge vane is reset, and stop at the reset position.
During Cooling operation or Soft Dry operation, indoor fan motor may stop to rotate at certain periods. At that
condition, the vane will stop swinging and rest at face front position.
During Heating operation, the piping air temperature reaches 38°C, the vanes swings left and right. When the
piping air temperature falls to 35°C, the vanes will stop swing and rest at face front position.
12.8.2 Manual
Control
When the horizontal airflow direction is set to Manual using the remote control, the automatic airflow is released
and the airflow direction vane move left and right in the range shown in the diagram.
The louver can be adjusted by pressing the button to the desired vane position.
When stopped with remote control, the vanes is reset and stopped at reset position.
Pattern
1 2 3 4 5
Airflow Direction Patterns at
Remote Control
Vane Angle (°)
26
52
39
13
0
40
12.9 Powerful Operation
To achieve the setting temperature quickly.
(Cooling and Soft Dry Operation condition)
When Powerful operation is set, the setting temperature will be automatically decreased 3°C internally against
the present setting temperature (Lower temperature limit: 16°C).
This operation automatically will be running under SHi Fan Speed (Cooling).
Vertical Airflow Direction:-
o
In “Manual” setting, the vane will automatically shift down 10° lower than previous setting.
o
In “Auto” setting, the vane will automatically swing up and down. However the lower limit will be shifted 10°
downward.
(Heating Operation condition)
When Powerful operation is set, the setting temperature will be automatically increased 3°C against the present
setting temperature (Higher temperature: 30°C).
The Fan Speed will shift as shown below:
Vertical Airflow Direction:-
o
In “Manual” setting, the vane will automatically shift down 5° lower than previous setting.
o
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 upper and lower limit will be
shifted 5° downward.
shifted 5° downward.
Powerful operation stops when:-
o
Powerful operation has operate for 20 minutes.
o
Powerful button is pressed again.
o
Quiet button is pressed
o
Stopped by OFF/ON operation button.
o
Timer OFF activates.
o
Operating mode is changed.
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