65 PB
OPERATION
Control Logic Description
(1) Outdoor fan and compressor stop.
(2) Temperature setting function is disabled, and no setting temperature is displayed.
(3) Indoor fan can be set to high/medium/low, but can not be set to auto.
Cooling Mode
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:
T1 is indoor room temperature. Ts is setting temperature.
Outdoor fan running rules:
Once the outdoor fan start up, it will follow the below rules:
Single outdoor fan: First, it will run in an invariable speed for a short time; Then it will regulate the
speed by the outdoor-coil temperature.
Double outdoor fan: If it has two outdoor fans, the upper fan regulates the speed by the rules,
and the downer fan speed lower than the upper fan speed for 30rpm~60rpm.
T
1-
Ts
0
2
Inverter outdoor unit：
Compressor and outdoor fan running rules:
Once the compressor starts up, it will follow the below rules:
When indoor room temp.T1 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.
4
Low
Medium
High
-1
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