Louver adjustment:
Manual: Users can set the position as needed. (Positions 1-6 in figure 1)
Auto: The range of sweeping is in position 1-5.
3.4 Protection function
3.4.1 Delay-starting protection for the compressor
Compress will restart working 3 minutes(5 minutes in HEAT mode) later the turn-off of compressor or
power-off to keep the pressure balance of the cooling system.
3.4.2 Freeze-prevention:
To prevent indoor heat exchanger freezing in COOL and DRY
operation.
When Trc
≤
3
℃
for 2 minutes, the air conditioner will enter into freeze-prevention operation. If
indoor fan speed is at low or breeze level, it will turn to medium speed automatically; if indoor fan speed is
at medium speed, it will turn to high speed;, The air conditioner will exit Freeze-prevention operation when
Trc>8
℃
, indoor fan motor runs at the set fan speed. Compressor will stop running when it runs at least 10
minutes and Trc
≤
-2
℃
. If the off-time of compressor is for more than 6 minutes or Trc
≥
8
℃
, and the
compressor stops running for more than 3 minutes. Compressor and outdoor fan motor will restart working.
The air conditioner will exit Freeze-prevention operation, and indoor fan motor is running at the set speed.
3.4.3 Cooling overload working:
To prevent the temperature of indoor heat
exchanger is too high (not available for cooling-only type air conditioner)
When Toc
≥
60
℃
, the air conditioner will enters into cooling overload protection, and indoor fan
speed will drop a gear. When Toc
≥
75
℃
, compressor will stop, indoor fan motor goes on running. When
Toc
≤
55
℃
and the time of indoor fan exchange is for more than 5 minutes, the air conditioner will exit
cooling overload protection; indoor fan motor and compressor will restore normal operation.(compressor
has a delay protection function)
3.4.4 Cool-airflow-prevention:
(not available for cooling-only type air conditioner)
In heating operation, if Trc<F
℃
, and the running time of compressor is for less than 5 minutes, air
conditioner stays in the cool-airflow prevention, Louver blades will move to position 6 and can’t be
controlled; Indoor fan motor will stop and PAUSE (red) indicator will light.
3.4.5 Heating overload working:
(not available for cooling-only type air conditioner)
When Trc
≥
A
℃
, the unit enters into heating overload protection. If indoor fan speed is set at low or
breeze level, it will turn to medium speed automatically; if indoor fan speed is set at medium speed, it will
turn to high speed; When Trc
≥
B
℃
, outdoor fan motor stops. When
Trc
≤
D
℃
, outdoor fan motor will restart
working. Air conditioner will exit overload protection when Trc drops blow E
℃
, compressor restarts working,
Indoor fan motor runs at the set fan speed.
When Trc
≥
C
℃
and the build-up time of compressor running is for more than 5 minutes, compressor
will be stopped.
