Panasonic CS-W12DKE

8.5.4. Anti-Freezing Control
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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.
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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.
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Compressor will restart again when the indoor heat exchanger temperature rises to 10°C (Recovery).
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Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short.
8.5.5. Compressor Reverse Rotation Protection Control
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If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and
indoor heat exchanger is 2.5°C (cooling mode) or less for continuous 2 minutes, compressor will stop and restart automatically.
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Time Delay Safety Control is activated before the compressor restart.
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T = Intake air temperature - Indoor heat exchanger temperature
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This is to prevent compressor from rotate reversely when there is an instantaneous power failure.
8.5.6. 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 second later.
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The reason of the difference is to reduce the starting current flow.
8.5.7. Anti-Dew Formation Control
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Purpose is to prevent dew formation on indoor unit air discharge area.
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When room temperature is constant (±1°C) the following conditions occur for 30 minutes continuously, anti-dew formation will
activate:
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Remote Control setting temperature is less than 25°C.
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Compressor is on.
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Cooling operation mode.
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Indoor Fan motor operate at Low fan speed (CLo, Lo- or QLo).
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This control is cancelled immediately when above condition is changed, or Powerful button is pressed.
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Anti-Dew formation is control by:
1. CLo fan is changed to HLo fan.
2. QLo fan is changed to HLo fan.
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