SERVICE MANUAL
Model: CFE629CW
18
Issue 2009-12-23
Rev. Ref0912S021V0
Otherwise the freezer fan malfunction will persist.
5-2.
Defrosting Control Principle
(1) A defrosting cycle will be started once the compressor has operated for 8 hours accumulatively. It
will stop defrosting when the defrosting sensor detects a temperature over 10ºC.
(2) The compressor stops and the refrigeration air door is closed during defrosting.
(3) After initial powering on or resetting of the control panel, it will start the first defrosting cycle after
the compressor has operated for 6 hours accumulatively.
(4) It may enter the defrosting state when the defrosting sensor is malfunctiony (short-circuit or
open-circuit). In this case, it will exit the defrosting state after 30 minutes.
Chapter 6 System flow principle
6-1. Refrigeration flow chart
Principle diagram and description of the refrigeration cycle
The refrigerant is compressed in the compressor, from there, it enters the dry filter, de-dewing tube,
and the condenser, and goes into the evaporator after being throttled and decompressed in the
capillary tube. Finally, it returns to the compressor through the air return tube.
Principle diagram of the refrigeration cycle:
6.2. Perspective of the Refrigeration System
