Outdoor Air Temperature Control; Cooling Overload Control; Dew Prevention Control - Panasonic CS-S18HKH Service Manual

13.10. Outdoor Air Temperature Control

• The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.
• This control will begin 1 minute after the compressor starts.
• Compressor frequency will adjust base on Outdoor Air Temperature.

13.11. Cooling Overload Control

• Pipe temperature limitation / restriction.
• Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency).
• The compressor stop if outdoor pipe temperature exceeds 63 C.
• If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95 indicated: outdoor high pressure rise protection).

13.12. Dew Prevention Control

• To prevent dew formation at indoor unit discharge area.
13.12.1. Dew Prevention Control 1
• This control will be activated 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:
Operation Mode
Cooling and e-ion
Soft Dry
13.12.2. Dew Prevention Control 2
• This control will be activated if the conditions below continues for 20 minutes:
- Cooling mode or Dry mode is activated.
- Indoor suction temperature is between 25 C and 29 C
- Outdoor air temperature is less than 30 C.
- Fan speed is at Quiet Lo.
• The horizontal louver will be fixed at 24 (regardless of Auto or Manual Airflow Direction Setting).
Airflow Direction
Auto
Manual
Auto
Manual
45
Vane Angle ( )
1 2 3 4
22 ~ 30
22 24 26 28
22 ~ 30
22 24 26 28
5
30
30