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Remote Controller Function Manual and Operating Instructions
Remote Controller Function Manual
This function manual is for D C Inverter LGW Series:
6.1.1 Temperature Parameters
Indoor preset temperature (T
preset
)
Indoor ambient temperature (T
amb.
)
6.1.2 Basic Functions
Once energized, the compressor should in no way be restarted unless after 3-minute time interval at least.
6.1.2.1 Cooling Mode
6.1.2.1.1 Working Conditions and Process of Cooling
When T
amb.Tpreset COOL mode will act, the compressor and outdoor fan will run, and the indoor fan will run at the set speed.
When Tamb Tpreset-2 , the compressor will stop, the outdoor fan will delay 30 seconds to stop, and the indoor fan will
run at the set speed.
When Tpreset-2 Tamb Tpreset ,the unit will maintain its original operating status.
¾ Under this mode, the 4-way valve will be de-energized and the temperature can be set within a range from 16 to
30ć.
The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature.
Stop cooling
Start cooling
Original operating status
T
amb
T
preset
T
preset
Preset speed
Run
Stop
Compressor
Outdoor fan
Indoor fan
3min.
6.1.2.1.2 Protection
Antifreeze Protection
Under dehumidifying and cooling mode, after the compressor has run for about 10 minutes, if it is detected that the evaporator
tube temperature is too low, the compressor will stop, the outdoor fan will stop after 30s delay, the indoor fan and swing
motor will maintain their original operating status while under cooling mode, when under dehumidifying, the indoor fan will
run at low speed and the swing motor will maintain its original operating status. When antifreeze protection is released
and the compressor has stopped for 3 minutes, the complete unit will resume its original operating status.
During antifreeze protection
Compressor
Outdoor fan
Indoor fan
Run
Stop
3min.
Overcurrent Protection
If total current is high, the compressor will run in limited or dropped frequency. When total current goes on rising over the
specified value, the compressor will stop, the outdoor fan will delay 30 seconds to stop.
6.1.2.2 Dehumidifying Mode
6.1.2.2.1 Working Conditions and Process of Dehumidifying
When T
am
b.
> T
preset the unit will run under dehumidifying mode, in which case the compressor and outdoor fan will start
to run, the indoor fan will run at low speed.
When T
preset
-2 Tć
amb.Tpreset , the unit will maintain its original operating status.
When T
amb
.< T
preset
-2ć, the compressor will stop ,the outdoor fan will stop after 30s delay and the indoor fan will run at low speed.
¾ Under this mode, the reversal valve will be de-energized and the temperature can be set within a range from 16 to
30ć.
The unit will adjust the running frequency of the compressor automatically according to the change of ambient temperature.