¾
If T amb.Tpreset +1 , the compressor and outdoor fan will be stopped, while reversalćvalve will remain energized and the
indoor fan will run at low speed for 10s and then it will stop running.
When Tpreset -1 <Tćamb.< Tpreset +1 , the unit will maintain its original operating status.ć
Under heating mode, the temperature can be set within a range from 16 to 30 . The initial value is 25 .ćć
If the unit is switched off under heating mode or switched from heating mode to another mode, the 4-way valve will
be de-energized after 2-minute lag.
Defrosting Conditions and Process
When detecting any frost in condenser, the system will start defrosting( The auxiliary electric heater,if any, will be stopped firstly, and then
start defrosting after 1 min. ),in which case the compressor, indoor fan and outdoor fan will be stopped simultaneously, the 4-way valve
will stop in 3S and the compressor will be started in another 30S.(Defrost will not be detected during high temperature protection).When
detecting the frost in condenser is removed, the defrost is completed, in which case the compressor stops, while the 4-way valve runs.
30S later, the compressor starts running,outdoor fan runs,and the indoor fan will run in 90S at least.
Fan Mode
Indoor fan will run at preset speed Auto Speed Low Speed Mid. Speed High Speed
¾The temperature can be set within a range from 16 to 30 . The initial value is 25ć
AUTO Mode
Under this mode, the system will automatically select its running mode (cooling, dry, heating or fan) with the change
of ambient temperature.
Once a mode is started, the unit will run at least 30 seconds before it can turn to other running status under
auto mode according to the ambient temperature.
Other Control
Sleep Function
If the controller is under cooling or dry mode, the preset temperature will be increased by 1 one hourć
after running under sleep mode and will be increased by another 1 after two hours. The temperature will increasedć
by 2 within two hours. After that, the unit will run at this temperature.ć
When indoor fan is runnng and Tevap. is lower than Tamb. and Tamb. Tpreset-2 , auxiliary electric heater will start running.
When indoor fan isn't running, or Tevap. is high, or Tamb. is high, the auxiliary electric heater will stop running. After the auxiliary
electric heater is stopped, it can be restarted only after 2min delayed.
outdoor
outdoor
outdoor fan is running at low fan speed;
outdoor fan is running at high fan speed;
outdoor Outdoor fan keep the original running status.
Auxiliary electric heater working condition
stop heating
original running status
start heating
stop
run
compressor
outdoor fan
indoor fan
o
low speed low speed
mins mins mins
Tpreset
Tpreset
setting temperature Tpreset
Tpreset
Tpreset
Tpreset
1hr 2hrs more than 2 hrs
