Defrosting - Daikin RY24PEV1K Service Manual

2.4 Defrosting

Defrosting mode is as follows.
Conditions of Defrosting ON: When accumulated heating time has reached 44min, the
compressor has been running for continuous 4min and 50sec, and Tcon. ≤ -5C has been
detected for continuous 1min, defrosting starts. If auxiliary heater is ON, it will be stopped
firstly. At 10s later, 4-way valve, indoor and outdoor unit fans will be stopped while the
compressor will compulsively run.
Conditions of Defrosting OFF: When defrosting has been running for 10min or Tcon. ≥
10C, defrosting finishes. 4-way valve and outdoor unit fan will run while the compressor
will forcibly run. The indoor unit fan will run at the mode of cold-blast air proof.
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FUNCTION CONTROL