Carrier 42KCR009713 - Auto Mode; Force Cooling Function

Service manual
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8.8.3 Ending condition of defrosting
If one of following conditions is satisfied, end the defrost and turn into heating mode:
A. The defrost time has reached to 7.5 or 10 minutes.
B. The compressor current has reached to I
DEFROST
or above, I
DEROST
differs in different models
8.8.4 Defrosting Actions
Compressor
Outdoor fan
4-way valve
Indoor fan
Defrost 10 or 6 minutes
25s
5s
10s
2s
8.9 Auto mode
8.9.1 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).
-1
TA-TS
2
Heating (fan only at cooling only) Fan only Cooling
8.9.2 The indoor fan blows automatically in corresponding selected mode
8.9.3 The motion of indoor fan’s blade should accord with the selected operation mode
8.9.4 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
8.10 Force cooling function
8.10.1 Select forced cooling function with the forced cooling button or the switch
8.10.2 The compressor is unconditionally turned on, after 30 minutes cooling operation whose fan mode is set
as low, the A/C operates at the DRY mode with a set temp. of 24℃
Defrost 7.5min Defrost 7.5 min Defrost 7.5min defrost10min