31
8.4.2.3 Condenser high temperature T3 protection.
When 55
℃
<T3<60
℃
, the compressor frequency will decrease to the lower level until to F1 and then
runs at F1.
When T3<54
℃
, the compressor will keep running at the current frequency.
When T3<52
℃
, the compressor will not limit the frequency and resume to the former frequency.
When T3>60
℃
for 5 seconds, the compressor will stop until T3<52
℃
.
8.4.2.4 Evaporator low temperature T2 protection.
When T2<0
℃
, the compressor will stop and restart when T2
>=
5
℃
.
When 0
℃≦
T2<4
℃
, the compressor frequency will be limited and decreased to the lower level every
minute.
When 4
℃
≤T2≤7
℃
, the compressor will keep the current frequency.
When T2>7
℃
, the compressor frequency will not be limited.
8.4.3 Heating Mode
8.4.3.1 Compressor running rules:
The operation frequency of compressor after starting submits to following rule.
After AC starts up, the compressor will run at the Fmax frequency for 7 minutes according to outdoor
ambient temp. During the 7 minutes, frequency limitation is available.
7 minutes later, compressor running frequency will be controlled as below:
