Auto Restart Control; Outdoor Air Temperature Control - Panasonic CS-E9BKP Service Manual

CS-E9BKP CU-E9BKP5 / CS-E12BKP CU-E12BKP5
8.2.10. Minimum Operation Frequency Protection Control
This control is applicable to all kinds of operation mode.
When the compressor operate at frequency lower than 26 Hz (E9BKP) or 28 Hz (E12BKP) for 240 minutes, the operation frequency
will be increased to 26 Hz (E9BKP) or 28 Hz (E12BKP) for two minutes.
8.2.11. Low Operation Frequency Protection Control
This control is applicable to all kinds of operation mode.
When all the below conditions occur, minimum value (Freq. MIN) for the frequency instructed to compressor will change to 30 Hz
(E9BKP) and 32 Hz (E12BKP) for cooling mode operation, and 21 Hz (E9BKP & E12BKP) for heating mode operation.
Temperature, T, for:
Indoor intake air (°C)
Outdoor air (°C)
Indoor heat exchanger (ºC)

8.2.12. Auto Restart Control

This control is applicable to all kinds of operation mode.
1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four
minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power
supply resumes.
2. This type of control is not applicable during Sleep Mode Operation and ON/OFF Timer setting.

8.2.13. Outdoor Air Temperature Control

1. For Cooling Mode and Soft Dry Mode operation, the compressor operating frequency is regulated in accordance to the outdoor
air temperature as shown in the diagram below. This control will begin one minute after the compressor starts.
Cooling/Soft Dry
15 < T 30
16 < T 38
T < 30
30
Heating
—
4 < T 24
T 0