Haswill STC-9200 Quick Start Manual page 4

time for defrosting if it was Hot Gas mode F10 = 1
(TDF = HTG)
If you found the "F1" (SET) value cannot be modified to the
value you need, please adjust the F3 and F4 (US and LS),
which are the limitation for F1 (SET).
3. Configure the Defrosting
This unit controls the defrosting by Time and
Temperature.
Temperature Condition: the evaporation sensor
temperature is lower than the preset "defrosting Stop
temperature" F8 (DTE), which is a significant value to
prevent over defrost.
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