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13.3.4 Compressor Oil Return Control
• When compressor starts, the compressor will be regulated for 240 seconds.
13.3.5 Cold Draught Prevention Control
• When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced.
13.3.6 Deice Operation
• When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor
and outdoor fan motor stop and the operation LED deice indicator ON during this operation.
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