Service manual
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② Calculate from the end of latest defrost, evaporator high temp. Protection only closes outdoor fan
with the compressor still running. Add up to 90 minutes.
Defrosting time
At condition ①, If item B is satisfied before item A, it would be regarded as severe frosting and the
defrosting time is 10 minutes. If item B is satisfied after item A, the defrosting time is 6minutes.
At condition ②, the defrosting time is 10 minutes.
After three times continuous 6-minute defrost, the fourth defrost time should be 10 minutes.
The circulation is as following:
Ending condition of defrosting
If one of following conditions is satisfied, end the defrost and turn into heating mode:
A. The defrost time has reached to 6 or 10 minutes.
B. The compressor current has reached to I
DEFROST
or above, I
DEROST
differs in different models
Defrosting Actions
Compressor
Outdoor fan
4-way valve
Indoor fan
Defrost 10 or 6 minutes
25s
5s
10s
2s
10.10 Auto mode
10.10.1 The air conditioner automatically selects one of the following operation modes: cooling,
heating or fan only according to the temperature difference between room temperature (TA) and set
temperature (TS).
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