Other Control; The Conditions And Processes Of Defrosting; Protection Function; Swing Motor - Gree KF-20GW/A20 Service Manual

The conditions and processes of defrosting

When detecting there is frost on the condenser, system enter into defrosting state, the outdoor fan, indoor fan will stop running. When detecting
the frost on the condenser has been eliminated, the system will return back and keep running in the old mode, the first time of defrosting is 9Min,
Since then, it will according to the frost then adjust the time of defrosting automatically, the max. time is 12Min, the Min. time is 3Min.
Compressor
Outdoor fan
Indoor fan

Protection function

Overcurrent protection
When the system current is tested higher than 13A, the compressor, outdoor fan and indoor fan stop running;
3Min later,whole unit will run in old mode, indoor fan will delay 20sec and start to run.
Avoiding high temp.
In HEAT mode, when detecting Ttube is very high, outdoor fan will stop running; when detecting Ttube is normal, outdoor fan will
return to run.
Noise cancellation protection
When using "RUN/STOP" to turn off the unit , the reversing valve will delay 2min to stop.
AUTO mode
According to the ambient temperature to select COOL or HEAT mode automatically. The protection function as HEAT/COOL mode

Other control

Swing motor

When it is powered on,the swing motor turn to position O, to turn off the air outlet vent; when the unit is turned on, turn to postion D,
then return to position L; in swing state, the louver swings between position L and D. When the unit is turned off, will return to position O.
Buzzer
When PCB is power on or receives the signal from the wireless remote control, the buzzer will sound .
Run indicator
Run indicator, it will light when starting the unit and extinguish when defrosting.
Defrosting
3Min
Running
Compressor
Outdoor fan
Indoor fan
Running
Bird Single-Split Type
12Min
Stop
Current
3Min
Stop
D