Gree Fengyun Series Manual page 37

6.1.2.3 Heating Mode
6.1.2.3.1 Heating Conditions and Process
When T ≤T +2 , the unit will run under heating mode,in ℃
am b.
preset
fan will be started simultaneously, while the indoor fan will run after 2minutes (max) delay .
If T ≥T + 4 , the compressor and outdoor fan will be stopped, the reversal
℃
amb. preset
indoor fan will run at preset speed for 60s and then will stop.
When T +2 <T < T
℃
preset amb. preset
Under this mode, the reversal valve will be energized and the temperature can be set from 16 to 30℃.
6.1.2.3.2 Defrosting Conditions and Process
When the condenser is detected to have frost, the system will enter into defrosting status, in which case the outdoor fan,
4-way valve and indoor fan will be stopped and the heating indicator will blink. When it is detected that the frost in
condenser is completely eliminated, the outdoor fan and 4-way valve will be started, the indoor fan will be started at most
6.1.2.3.3 The preventive liquid splash protection for the 4-way valve
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 2 minutes after the compressor is stopped.
6.1.2.4 Fan Mode
Under FAN mode, the indoor fan runs at preset speed.
The temperature can be set within a range from 16 to 30℃.The initial value is 25
6.1.2.5 Auto Mode
Under this mode, the system will automatically select its run mode (cooling, fan, heating ) with the change of
ambient temperature. For protection function, same as under cooling or heating mode.
Under Auto mode, if the unit is switched from heating mode to another mode, the reversal valve will be de-energized
after 2 mins delay.(cooling only unit has not heating mode)
6.1.3 Other Control
6.1.3.1 Sleep Function
Setting SLEEP function under COOL or DEHUMIDIFY mode, the preset temperature will automatically rise by 1
hour and rise by another 1
℃
run at this preset temperature.
Setting SLEEP function under HEAT mode, the preset
temperature will automatically decrease by 1 after 1
hour and decrease by another 1
temperature will decrease by 2
hours. After that, the unit will run at this preset temperature.
No sleep function under FAN or AUTO mode.
+ 4 , the unit will maintain its original operating status.
℃
T
preset
T
preset
Tamb
Compressor
Outdoor fan
Indoor fan
2min.
reversal valve
after 2 hours. Preset temperature will rise by 2
℃
after 2 hours.Preset
℃
in total within 2
℃
which case the reversal valve, compressor and outdoor
6min. 3min.
6min.
preset
speed 2min.
Stop
Run
Auto Speed
in total within 2 hours. After that, the unit will
℃
Tset
Tset
1Hr.
1Hr.
Tset
Tset
Fengyun Series
valve will remain energized and the
Stop heating
Original operating status.
Start heating
preset
speed
Middle Speed
Low Speed Hige Speed
.
Setting temp. Tset
Tset
2Hrs. 2Hrs. above
2Hrs. above
2Hrs.
Setting temp. Tset
Tset
℃ after 1