Electrical Control Function
182 Electrical Control System
For A5 duct 12k
4
3
High
Low
1
Medium
For other models:
5.0
4.0
High
Low
2.0
Medium
3.0
1.3.2.4 Evaporator low temperature T2 protection.
For 12k models：
---T2<0℃, the compressor will stop and restart when T2>=5℃.
---0℃≦T2<4℃, the compressor frequency will be limited and decreased to the lower level every 1 minute till
off.
---4℃≤T2≤7℃, the compressor will keep the current frequency.
---T2>7℃, the compressor frequency will not be limited.
For other models: When T2<2℃ and lasts for 3 minutes, the indoor has no capacity demand and resume
till T2≥7℃.
1.3.2.5 Condenser high temperature T3 protection
For 12k models:
---55℃<T3<60℃, the compressor frequency will decrease to the lower level every 3 minutes till F1 and then
runs at F1.If T3<54℃, the compressor will keep running at the current frequency.
---T3<52℃, the compressor will not limit the frequency and resume to the former frequency.
---T3>60℃ for 5 seconds, the compressor will stop until T3<52℃.
For other models: When T3≥65℃ for 3 seconds, the compressor will shut off. When T3＜52,the
compressor will restart.
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