Electrical Control Function
Electrical Control System
39
27
T1
26
High
Low
24
Medium
1.3.2 Cooling Mode
1.3.2.1 Compressor running rules
Once the compressor starts up, it will follow the below rules:
When indoor room temperatureT1 is lower than Ts, the compressor and outdoor fan will shut off. When T1 is
higher than Ts+1, the compressor and outdoor fan will start up.
Ts+1
Ts
On
Off
1.3.2.2 Outdoor fan running rules
The On-off outdoor units have single fan speed. The outdoor fan will run following the compressor except
when AC is in evaporator high temperature protection in heating mode, condenser high temperature
protection in cooling mode, defrosting mode and the current protection.
1.3.2.3 Indoor fan running rules
In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto.
The auto fan:
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