Carrier QHC Series Service Manual page 32

T1-Ts
Cooling
Fan only
Heating*
Heating*: For cooling only models, they will run at fan speed
Indoor fan will run at auto fan of the relevant mode.
The louver operates same as in relevant mode.
If the machine switches mode between heating and cooling, the compressor will keep stopping for
certain time and then choose mode according to T1-Ts.
If the setting temperature is modified, the machine will choose running function again.
9.4.5 Drying mode
Indoor fan speed is fixed at breeze and can't be changed. The louver angle is the same as in cooling
mode.
All protections are active and the same as that in cooling mode.
9.4.6 Forced operation function
Forced cooling mode:
The compressor and outdoor fan keep running and the indoor fan runs at low speed. After running for
30 minutes, AC will turn to auto mode with 24℃ setting temperature.
Forced auto mode:
The action of forced auto mode is the same as normal auto mode with 24℃ setting temperature.
When AC receives signals, such as switch on, switch off, timer on, timer off, mode setting, fan speed
setting, sleeping mode setting, follow me setting, it will quit the forced operation.
9.4.7 Auto-Restart function
The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart
module. In case of a sudden power failure, the module memorizes the setting conditions before the
power failure. The unit will resume the previous operation setting (not including swing function)
automatically after 3 minutes when power returns.
If the memorization condition is forced cooling mode, the unit will run in cooling mode for 30 minutes
and turn to auto mode as 24℃ setting temp.
If AC is off before power off and AC is required to start up now, the compressor will have 1 minute
delay when power on. Other conditions, the compressor will have 3 minutes delay when restarts.
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