DOWNLOAD Panasonic CS-C7HKD / CS-C9HKD / CS-C12HKD / CU-C7HKD / CU-C9HKD / CU-C12HKD Service Manual ↓ Size: 5.24 MB | Pages: 64 in PDF or view online for FREE

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• To prevent dew formation at indoor unit discharge area.
• This control start if:-

- Cooling mode or Quiet mode is activated.
- Remote Control setting temperature is less than 25

°C.

- Fan speed is at CLo or QLo.
- Room temperature is constant (±1

°C) for 30 minutes.

- Compressor is continuously running.

• Fan speed and angle of horizontal louver (vertical airflow angle) will be adjusted accordingly in this control.

- Fan speed will be increased slowly if the unit is in quiet mode but no change in normal cooling mode.
- The angle of horizontal louver will be changed as table below:

• Dew prevention stop condition.

- Remote control setting temperature is more than 25

°C.

- Fan speed is not set to CLo or QLo.
- Select Powerful operation

Operation Mode

Airflow direction auto control

Airflow direciton manual control

Cooling, Soft Dry

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1. AUTO OPERATION MODE

The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be use to
operate air conditioner with limited function if remote control is misplaced or malfunction.

2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)

The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds. A “beep”
sound will occur at the fifth seconds, in order to identify the starting of Test Run operation.

3. REMOTE CONTROL RECEIVING SOUND OFF/ON MODE

The Remote Control Receiving Sound OFF/ON operation will be activated if (within 20 seconds of Test Run Operation) the
Auto OFF/ON button is pressed for more than 5 seconds. 2 “beep” sound will occur at to identify the starting of Remote
Control Receiving Sound Off/On Mode.

Press “Auto OFF/ON button” to toggle remote control receiving sound.
- Short “beep”: Turn ON remote control receiving sound.
- Long “beep”: Turn OFF remote control receiving sound.

After Auto OFF/ON Button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON Mode is
restarted.

• There are 4 type of remote control transmission code could be selected and stored in EEPROM of indoor unit. The indoor unit

will only operate when received signal with same transmission code from remote control. This could prevent signal interference
when there are 2 or more indoor unit installed nearby together.

• To change remote control transmission code, short or open jumpers at the remote control printed circuit board.

• During Remote Control Receiving Sound OFF/ON Mode, press any button at remote control to transmit and store the desired

transmission code to the EEPROM.

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• To check current remote control transmission code.

- Press for more than 10 seconds.

• To change the air quality sensor sensitivity:

- Press and release with pointer.
- Press the Timer Decrement button to select sensitivity:

1. Low Sensitivity
2. Standard (Default)
3. Hi Sensitivity

- Confirm setting by pressing Timer Set button, a “Beep” sound will be heard. LCD returns to original display after 2 seconds.
- LCD returns to original display if remote control does not operate for 30 seconds.

• To change the remote control’s time format.

- Press for more than 5 seconds.

• To clear and restore the remote control setting to factory default.

- Press once to clear the memory.

• To change indoor unit indicator’s LED intensity.

- Press continuously for 5 seconds.

• To change remote control display from Degree Celsius (

°C) to Degree Fahrenheit (°F).

- Press continuously for 10 seconds.

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In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the
refrigeration cycle depends on various conditions, the standard
values for them are shown in the table to the right.