Auto Mode; Force Cooling Function - Heat Controller SMA Service Manual

9.9.2 Conditions of defrost ending:
Defrosting ends when either of the following:
The defrost cycle reaches 10 minutes.
T3 is greater than 68º F.
9.9.3 Defrosting Actions
Remark: when the evaporator pipe temperature sensor more than TE16, the indoor fan start to run.

9.10 Auto mode

9.10.1 The air conditioner automatically selects one of the following operation modes: cooling, heating
or fan only according to the temperature difference between room temperature (TA) and set
temperature (TS).
9.10.2 The indoor fan blows automatically in corresponding selected mode；
9.10.3 The rpm of indoor fan should be per the selected operation mode；
9.10.4 One mode should be carried out for at least 15 minutes once selected. If the compressor cannot
start for 15 minutes, reselect the operation mode according to the room temp. and set temp., or
reselect when the set temp. varies
9.11 Forced cooling function
9.11.1 Select forced cooling function with the forced cooling button or the switch
9.11.2 The compressor is unconditionally turned on. After 30 minutes cooling operation the fan
Service manual
-1.8ºF 3.6ºF
Heat Controller, Inc. Jackson, MI 49203
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