Midea IC SI-A-1205, Руководство по обслуживанию

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5)For the first time defrosting after the unit starts operation newly, if it meets all of the below rules:
a: AC is running in heating mode.
b:After the AC operates for 30 minutes, if the T4- T3 >f(T4)=0.5T4+KDELTTT.
c:T3<-5
℃
Condition of ending defrosting:
If any one of the following items is satisfied, the defrosting will finish and the machine will turn to
normal heating mode.
----T3 rises to be higher than TCDE1
℃
.
----T3 keeps to be higher than TCDE2
℃
for 80 seconds.
----The machine has run for 15 minutes in defrosting mode.
Defrosting action
：
Compressor
on
off
on
on
on
off
off
off
4-way valve
Outdoor fan
Indoor fan
20
no longer than 15m
20s
10s
10s