Haier HW-12C03 Service Manual page 71

Function introduction
3 minutes delay function
After the conditioner is switched off, the protection device will make the compressor
perform 3 minutes delay before switching on the machine.
Cold air preventing
In heating, to prevent the blowing of cold air, the fan will pause for a while after the unit starting.
then begins to blow out warm air.
Auto frost-removing function
In heating when the outdoor heat exchanger gets frost, the machine will defrost automatically.
and the fan will stop. After that the machine will resume running automatically.
Ventilating function (For AW-12XXX, AW-18HBO3)
There's a handle at the lower left corner of the air outlet grating, which is the ventilating
switch. Generally it is set to left "Close" position. When moved to right, it will discharge part
of the indoor foul air so as to keep the indoor air fresh. If the switch is set to right "Open"
position for a long period, it will influence the cooling effect.
CLOSE VENT OPEN
Air ventilating Switch
57
CLOSE VENT OPEN