Haier Smart Power Series Service Manual page 207

Smart Power
2. Cold wind prevention control
It is unavailable in the cooling mode (include auto cooling mode) , dehumidification mode and blowing mode.
In heating mode, the indoor fan running state is decided by indoor coil temperature (Tm) after compressor
starting.
Note:
The numbers in the brackets is the temperature control point when the outdoor environment temperature is more
than 10 degree.
3. Afterheat control
Unit is off in heating mode or S-0 or compressor is off, unit will run in after-heat mode. The indoor unit fan run at
a low speed until it satisfy the conditions what has been line out in above table. (cold wind prevention priority) .
The longest running time is 50 seconds.
4. Cold wind prevention control in defrost mode
After receive the defrost signal, indoor unit will blow after-heat for 20 seconds in low speed and then stop. Or it
will stop if indoor coil temperature is less than the temperature of cold wind prevention.
After defrost, indoor unit fan will run in cold wind prevention mode.
6.1.4 Anti-freeze
Anti-freeze protection, pay attention that the LED light of outdoor can display the anti-freeze protection, but indoor
cannot display it because it's not a fault and can recover itself automatically.
Anti-freeze protection of indoor unit in cooling mode
Tm
Setting airflow
30 (34)
Low speed
26 (30)
Stop
24 (26)
22 (23)
General control.
Frequency rises slowly as 1HZ/10s.
Remain unchanged.
Frequency decrease slowly as 1HZ/10s.
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