Gree Bright Series, Manual

Page: 40 / 79

When T
amb.
> T
preset
+2 , the unit will run under dehumidifying and cooling 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 ≤ T
℃
amb.
≤ T
preset
+2 , the unit will run under dehumidifying mode, in which case the indoor fan will keep
℃
run at low speed, while the compressor and outdoor fan will run 6 minutes and stop 4 minutes so repeated in cycle.
When T
amb
.< T
preset
-2
℃
,
the compressor and outdoor fan will be stopped and the indoor fan will run at low speed.
Under this mode, the reversal valve will be de-energized and the temperature can be set within a range from 16 to
30
℃
.
T
preset
+2
℃
T
preset
-2 ℃
T
amb
Compressor
Outdoor fan
Indoor fan
Cooling
Dehumidifying
Stop
6 min
.
6 min
.
4
min.
4
min.
low
speed
Run
Stop
6.3.2.2.2 Display
The display window will display run icon, dehumidifying icon and the set temperature.
6.3.2.2.3 Protection
Antifreeze Protection
Under dehumidifying and cooling mode, i
f 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 "run 6 mins and stop 4 mins" dehumidify condition, i
f it is detected that the system is under antifreeze pro
-
tection,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
4
minutes, the complete unit will resume its original operating status.
During antifreeze protection
3
min
.
Compressor
Outdoor fan
Indoor fan
Run
Stop
low
speed
6.3.2.3 Heating Mode
6.3.2.3.1 Working Conditions and Process of Heating
When T
amb.
≤ T
preset
+2 , the unit will run under heating mode, in which case the
reversal
valve, compressor and
℃
outdoor fan will be simultaneously started, and the indoor fan will be started after 2 minutes the latest.
If T
amb.
≥ T
preset
+4 ,
the compressor and outdoor fan will be stopped, the reversal valve is still energized and the
℃
indoor fan will run at low speed for 60 seconds before it is stopped.
When T
preset
+2 <T
℃
amb.
< T
preset
+4 , the unit will maintain its original operating status.
℃
Under this mode,the temperature can be set within a range from 16 to 30 .
T
preset
+4 ℃
T
preset
+
2
℃
Compressor
Outdoor fan
Indoor fan
reversal
valve
T
amb
6
min.
6
min.
3
min.
2
min.
2
min.
Run
Stop
Start
heating
Original operating status
Stop
heating
low
low
speed
speed