6
value, then please stop decreasing frequency; If the temperature exceeds the upper limit
value, then the unit will exists freeze-prevention protection. If the temperature is lower than
certain prescribed value, the unit will stop.
2.4.4 Over current-prevention control
If the value of input current detected by outdoor current sensor is higher than the prescribed
value, the rotary speed of compressor will be decreased and controlled in order to keep the
current value not higher than the upper limit value
；
compressor will come to normal
operation when the current value drops to the lower limit value
；
If current value is higher than
the upper limit value, compressor will stop.
2.4.5 Cooling overload working
In cooling operation, if the temperature of outdoor heat exchanger is too high, the speed of
compressor will be adjusted to a lower gear automatically
，
and sometimes compressor may
be stopped.
2.4.6 Sleep control
（
soft operation
）
Press“sleep” button on remote controller
，
the unit will control rotary speed of compressor
and indoor fan motor and enters sleep operation:
Rotary speed of fan motor
：
medium level or low level
Rotary speed of compressor
：
decrease
The set temperature will increase 1
℃
automatically after running for 1 hour; After running for
about 1 hour, the set temperature will increase 1
℃ ；
After running for another 1 hour, the set
temperature will go on increasing 1
℃
. The temperature will not increase when the set
temperature is higher than the prescribed value. The temperature will not exceeds the
prescribed value when lower than the prescribed value.
2.4.7 The highest rotary speed of compressor controlled by wind rate grade
To determine the highest rotary speed of compressor according to indoor and outdoor
temperature.
2.4.8 Outdoor Motor Control
The speed of outdoor motor is decided in low or higher according to the outdoor
surroundings temperature and the indoor pipe temperature.
2.4.9 Dry Mildew Proofing Operation
Indoor fan motor will go on running for a period of time after the unit is turned off
to dry surplus moisture remain in unit.
2.4.10 Compressor frequency control
A Frequency range of compressor is 25-100Hz
。
B Original frequency of compressor
：
Set by original indoor temperature and surroundings
temperature.
C Running frequency of compressor is controlled by artificial intelligence.
