Panasonic CS-C12PKV, Service Manual

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14. Protection Control
14.1 Restart Control (Time Delay Safety Control)
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When the thermo-off temperature (temperature which compressor stops to operate) is reach 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.
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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.
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This phenomenon is to balance the pressure inside the refrigerant cycle.
14.2 7 Minutes Time Save Control
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The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls
between the compressor ON temperature (A) and compressor OFF temperature (B) during the period.
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This phenomenon is to reduce the built up humidity inside a room.
14.3 60 Seconds Forced Operation
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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, forced stop by pressing
the OFF/ON operation button at the remote control is permitted.
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The reason for the compressor to force operate at the minimum 60 seconds is to allow the refrigerant oil run in a
full cycle and return back to the outdoor unit.
14.4 Starting Current Control
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When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor
will start to operate at 1.6 seconds later.
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The reason of the difference is to reduce the starting current flow.