(1)
a. After the state of Tp-Tr<18℃ is continued for 5 minutes, the accumulated
running time of the compressor exceeds 45 minutes, the continuous running
time of the compressor exceeds 20 minutes;
b. The accumulated running time of the compressor exceeds 3 hours, the
continuous running time of the compressor exceeds 20 minutes, indoor unit’s Tp
<42℃;
c. The continuous running time of the compressor exceeds 20 minutes, the
temperature of indoor coil pipe decreases 1℃ every 6 minutes, which lasts for
more than 3 times, indoor unit’s Tp <42 ℃;
d. When the indoor unit is in the state of overload protection and the outdoor unit
ceases, when the rerunning time of outdoor unit exceeds10 minutes, the
accumulated running time of the compressor exceeds 45 minutes, the
continuous running time of the compressor is over 20 minutes, and Tp <42℃.
Defrosting will begin if one of the above conditions is met.
(2) Defrosting finishing condition:
If the defrosting time exceeds 9 minutes, the original heating state will be
resumed;
Defrosting process is as follows:
Ｃｏｍｐｒｅｓｓｏｒ
55s
1min
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