Indoor fan running rules
In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto.
The indoor fan is controlled as below:
When the compressor is on, the indoor fan can be set to high/med/low/auto. And the anti-cold wind function has the priority.
Indoor fan delayed open function
When the unit starts up, the louver will be active immediately and the indoor fan will open 7s later.
If the unit runs in heating mode, the indoor fan will be also controlled by anti-cold wind function.
Defrosting
AC will enter the defrosting mode according to the value of temperature of T3 and the value range of temperature change of T3 and also the compressor running time.
During the defrosting mode, the compressor keep running, indoor and outdoor motor will stop, defrost lamp of the indoor unit will be lighted “
.” Will be displayed.
If any one of the following items is satisfied, the defrosting will finish and the machine will turn to normal heating mode.
----T3 rises to be higher than TCDE1℃.
----T3 keeps to be higher than TCDE2℃ for 80 seconds.
----The machine has run for 15 minutes in defrosting mode.
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.
In Auto mode,
the machine will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts).
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 15 minutes and then choose mode according to T1-Ts.
If the setting temperature is modified, the machine will choose running function again.