Gree GWC12KF-K3DNA5A

26
6.3 Description of Each Control Operation
(1)Cooling Mode
(2)Dry Mode
(3)Fan Mode
(4)Heating Mode
C
B
A
C
B
A
(5)Auto Changeover Mode
(6)Auto fan speed Mode
Cooling
operation
Heating
operation
Cooling
operation
With compressor capacity supplied
With no compressor capacity supplied
1. In this mode, the fan motor runs at low fan speed while swing works
according to setting state. The range of setting temperature is 16~30
o
C
(61~86¨H).
2. When outdoor unit has malfunction or stopped for protection,
the indoor fan will keep the original running state and the error will be displayed.
1. In this mode, the indoor fan may run at high, medium, low and automatic
speed. The compressor, outdoor fan and 4-way valve all stop running.
2. In this mode, the range of setting temperature is 16~30
o
C (61~86¨H).
1. Heating mode
When setting temperature-indoor temperature<= -1.5
o
C,
the unit will stop heating. Both outdoor fan and indoor fan will stop later.

When setting temperature-indoor temperature>-1.5
o
C and it lasts for a
certain
period, the unit will start heating. In that case, indoor fan, outdoor fan
and compressor will start running. The indoor fan works according to the
operation of cold air prevention.

* In this mode, the range of setting temperature is 16~30
o
C (61~86¨H).
Set temperature- indoor temperature
2. Protection function: in heating mode, when the compressor stops as
a result of malfunction, the indoor fan blows residual heat.
3. Defrosting control: when the defrosting signal is received, the
defrosting mark H1 will be shown. The e-heater and indoor fan stop.
* Cold air prevention function
The rotational speed of indoor motor is decided based on the
indoor pipe temperature. The indoor fan can run at low speed or stop
running. This function will terminate after the unit runs for 3min or the
pipe temperature reached certain value.

During heating, if the indoor pipe temperature is lower than certain value.
The running speed of indoor fan will decrease automatically based on the
pipe temperature to ensure that the outlet air is hot.

* X-Fan function
During heating, when conditions for stop of the compressor is reached,
the compressor and the outdoor fan stop running while the horizontal
louver rotates to level L. the indoor fan will stop after running for
60s at setting speed.
In this mode, the system selects the operation mode (cooling, heating, and fan)
automatically according to the ambient temperature. The display shows the
actual operation mode and setting temperature. There will be 30s delay for
mode conversion. The protection function is the same as that of other modes.
1. When T amb =25 , the cooling mode is selected.
2. for heat pump unit: when Tamb =22 , the unit runs in heating mode
3. for cooling only unit: when Tamb < 22 , the unit runs in fan mode. .
4. When 22 <T indoor amb< 25 , upon initial startup, the unit will
enter auto mode and run in automatic fan mode. If the other mode
changes to auto mode, the previous operation mode will remain.
In auto fan mode, the rotational speed of the fan for indoor unit is
decided by the differential temperature between ambient temperature and
setting temperature. In dry mode, the automatic fan speed is
forced to be low.
ｕｎｉｔ
ｍｏｄｅ
1300 1100 900 700
1300 1140 980 820
1350 1150 950 750
1350 1190 1020 850
109K
212K
No. of
jumper
cap
ｔｙｐｅ
Super-high
fan speed
High fan
speed
Medium
fan speed
Low fan
speed
Rotational speed
during cooling
Rotational speed
during heating
Rotational speed
during cooling
Rotational speed
d
uring heating
1. When room temp-set temp ≤-2℃，cooling will stop;
Outdoor fan will stop later and indoor fan will operate at set
speed;
2. When room temp –set temp ＞ -2℃, if such situation
continues for a period of time, cooling operation will be
started. In that case, indoor fan, outdoor fan and
compressor will operate and the indoor fan will operate at
set speed.
* In this mode, fan and swing motor will operate at set status
and the temp range setting is 16~30℃（61~86℉）.
* If there is malfunction of outdoor unit or the unit stops for
protection, the indoor unit will keep its operation status but the
error will be displayed.
Indoor temperature- set temperature
℃
℃
℃
℃
℃