Min. pulse Min. pulse Min. pulse
Max. pulse
Function
2.2 Defrost
Defrost operation eliminates ice accumulated on heat exchanger, recovering performance of heat exchanger.
Each cycle component operates as following table during defrost operation.
n Ending condition
1) All heat exchanger pipe temperature are above setting temperature for 30 s
2) The running time of defrost operation is over 30% of the total heating time
3) If compressor protection control starts by high discharge temperature of compressor etc.