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⚫ Evaporator anti-frost protection in cooling mode
When the T2 (indoor coil sensor)<4℃, decrease the compressor frequency until 4℃≤T2≤ 6℃.
When T2>7℃，exist the limitation. When T2<0 ℃, stop the unit until T2≥5℃, restart the unit.
3.3.4 Dehumidification mode
The fan speed is fixed on slim fan and can’t be changed.
If room temperature is lower than 10℃, the compressor will stop to work until the room
temperature is higher than 12℃.
3.3.5 Heating mode
⚫ Compressor frequency control
The start and running frequency depends on the temperature difference between room and
setting temperature.
The running frequency will be limited by ambient temperature, indoor fan speed and
outdoor unit current.
⚫ Outdoor fan motor control
The outdoor unit fan speed changing is according ambient temperature (T4). For different model
outdoor unit, the fan speeds are different.
⚫ Indoor fan motor control
Can set turbo/high/middle/low/auto fan speed. The fan speed in auto fan mode is according
to the temperature difference between room and setting temperature.
Anti-cold-wind protection: According to room temperature choose the anti-cold-wind plan.
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