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T
preset
+2℃
T
preset
-2℃
T
amb
Compressor
Outdoor fan
Indoor fan
Cooling
Dry
Stop
6 min. 6 min.
4 min.
4 min.
low speed
Run Stop
6.1.2.2.3 Protection
Antifreeze Protection
Upon meeting the cooling condition, if it is detected that the system is under antifreeze protection, the compressor
and outdoor fan will be stopped,and the indoor fan will run at low speed. When antifreeze protection is released and
the compressor has stopped for 3 minutes, the complete unit will resume its original operating status.
Upon meeting the dehumidify condition, if it is detected that the system is under antifreeze protection, the com
-pressor and outdoor fan will be stopped,and the indoor fan will run at low speed. When antifreeze protection is released
and the compressor has stopped for 4 minutes, the complete unit will resume its original operating status.
6.1.2.3 HEAT Mode (there is no this mode for cooling only unit)
6.1.2.3 .1The conditions and process of heating
Tset
Tset
Compressor
Outer fan
Inner fan
Reversal valve
Running
Stop
Stop heating
Original running state
Start heating
Tamb.
6Min.
3Min.
6Min.
2Min.
Setting
fan speed
2Min.
Setting
fan speed
When Tamb Tset +2 ,the system enters heating running, in this case, the reversal valve, compressor,
outer fan enter simultaneously running.The indoor fan will delay at most for 2min to run.
When Tamb Tset +4 ,the compressor and outdoor fan will stop, but the reversal valve is still with power on,
the indoor unit will run at setting fan speed for 60s then will stop .
When Tset +2 <Tamb < Tset +4 ,the unit will maintain its original operating status.
Under this mode, the switchover valve will be powered on, and the setting temperature range is16 ~30 .
6.1.2.3.3 Conditions and processes of defrost
This unit adopt intelligent defrosting,it can defrost according to the frosting conditions,dual 8 display H1
6.1.2.3.4 Protection
High
Temp
.
Protection
If it is detected that the evaporator tube temperature is too high, the outdoor fan will be stopped. When the tube
temperature resumes to normal, the outdoor fan will be restarted.
Noise
Silencing
Protection: If the unit is stopped by pressing ON/OFF, the reversal valve will be stopped after
2-minute lag; or 2 minutes will be delayed upon mode switching.
6.1.2.4 Fan mode
Under FAN mode, only the indoor fan runs at setting speed.The RUN indicator will be bright. Double 8 module indicator
will display the setting temperature. When stand by, the power indicator is bright but the unit does not run.
6.1.2.5 Auto Mode
Under this mode, the system will automatically select its run mode (cool, dehumidify, heat or fan) with the change of
ambient temperature. For protection function, same as under cooling and heating mode.