Service Manual_2018-V2.0
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11. Compressor and fan
11.1Compressor startup and shutdown control rules
11.1.1 Compressor startup and shutdown control
After power on, the compressor has 5min delay protection.
11.1.2 The compressor is stopped when one of the following conditions is met:
Tfa ≤ Tft or Tra ≤ Trt
After 3 hours of continuous operation and forced shutdown (except for quick freezing)
Defrosting state
11.1.3The compressor is turned on when one of the following conditions is met：
(After the compressor is controlled to stop, the downtime is ≥5min) AND ((Tfa ≥Tfk) or (Tra ≥Trk));
After 3 hours of continuous operation and forced shutdown, the machine must be shut down for 5
minutes before starting up;
Non-defrosting state;
★ In the case that item 7.1.1 and item 7.1.2 are not met, the compressor remains in its original state.
11.2Fan opening and closing control
11.2.1 Starting condition of freezer fan
1. After the compressor is turned on for 1 minute, and the freezing chamber door is closed, the fan is
turned on;
2. When the door is opened, the fan will stop working. After 15 minutes, the door has not been
closed, and the fan works with the press.
11.2.2 When one of the following conditions is met, the fan in the freezer stops:
1.1 minute after the compressor is stopped;
2. In defrosting state of freezing chamber;
3. Within 15 minutes that the door of freezing chamber is opened;
4.The freezing fan cannot be started within 20s after the door is closed.
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