Control Specification SiBE01-829
26 Functions and Control
3.6 Defrost Control
Outline In heating, defrosting is carried out by the cooling cycle (reverse cycle) to prevent the outdoor
heat exchanger being frosted. The defrosting time or outdoor heat exchanger temperature must
be more than its fixed value when finishing.
Detail Time chart
Compressor
Heating Defrosting Heating
Four way valve
Outdoor unit fan
Indoor unit fan
ON
OFF
ON
OFF
ON
OFF
ON
OFF
50sec.
60sec. 230sec.
Hot start function
50sec.
(R8498)
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