Panasonic CS-PC12TKF, Руководство по обслуживанию

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13. Protection Control
13.1 Restart Control (Time Delay Safety Control)

When the thermo-off temperature (temperature which compressor stops to operate) is reached during:
o
Cooling operation – the compressor stops for 3 minutes (minimum) before resume operation.
o
Soft Dry operation – the compressor stops for 6 minutes (minimum) before resume operation.

If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the
moment operation stop, although the unit is turn on again within the period.

This phenomenon is to balance the pressure inside the refrigerant cycle.
13.2 7 Minutes Time Save Control

The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls
between the compressor ON (A) temperature and compressor OFF temperature (B) during the period.

This phenomenon is to reduce the built up humidity inside a room.
Compressor-ON
Compressor-OFF
Temperature
Compressor OFF
A
B
1.5°C higher than setting temperature
Intake air
temperature
13.3 60 Seconds Forced Operation

Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation
although the intake air temperature has reached the thermo-off temperature. However, force stop by pressing the
OFF/ON button at the remote control is permitted.

The reason for the compressor to force operation for minimum 60 seconds is to allow the refrigerant oil run in a
full cycle and return back to the outdoor unit.
13.4 Starting Current Control

When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor
will start to operate 1.6 second later.

The reason of the difference is to reduce the starting current flow.
13.5 Freeze Prevention Control

If the temperature of the indoor heat exchanger falls below 2°C continuously for 4 minutes or more, the
compressor turns off. The fan speed setting remains the same.

This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of
refrigerant in liquid form returning to the compressor.

Compressor will restart again when the indoor heat exchanger temperature rises to 10°C (Recovery).

Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short.
Indoor Heat
Exchanger
Temperature
(°C)
Recovery
10
2
4 min
Compressor OFF