Electrical Control Function
1. Electrical Control Function
1.1 Definition
T1: Indoor room temperature
T2: Coil temperature of indoor heat exchanger middle.
T2B: Coil temperature of indoor heat exchanger outlet.
T3: Coil temperature of condenser
T4: Outdoor ambient temperature
T5: Compressor discharge temperature
1.2 Main Protection
1.2.1 Time delay at restart for compressor.
1.2.2 Temperature protection of compressor top
The unit will stop working when the compressor top temp. protector cut off, and will restart after the
compressor top temp. protector restart.
1.2.3 Temperature protection of compressor discharge
When the compressor discharge temp. is getting higher, the running frequency will be limited as below rules:
----If 102℃<T5<115℃, decrease the frequency to the lower level every 2 minutes till to F1.
---If T5>115℃ for 10 seconds, the compressor will stop and restart till T5<90℃.
1.2.4 Sensor protection at open circuit and breaking disconnection.
To Next Page
Loading...
