Gree KF-20x2GW/A12 User manual

1
Bird Dual-Split Type
Summary and features
Models Remarks
25

(W) 2000×2 2300×2
(W)
770×2750×2
(A) 3.4×2 3.33×2
(L/h) 0.76 -
(W/W) 2.8 3.07
760 740
3.2 2.87
(m)
(mm)
(mm)
(m)
(m)
KF-20×2GW/A12 KFR-20×2GW/A12
1Ph 230V 50Hz
2000×2
770×2
3.4×2
0.7
C.O.P/EER 2.6
KF-20×2G/A12 KFR-20×2G/A12
(r/min)(H/M/L) 960/900/850
(W) 8
—1
φ97×585
φ7×0.41
2-1.6
0.14
MP24GA
2
Controller 3.15A Transformer 0.2A
(μF)1
dB(A) 36
(W/D/H)(mm) 770×250×180
(W/D/H)(mm)
855×366×272
8.5/-
KF-20×2W/A12 KFR-20×2W/A12
(W)760
(A)3.2
-
(℃)
2-43℃
φ9.52
1-1.8
0.4
25/780
—1
(mm) 450
R22/0.65×2R22/0.9×2
dB(A)
57
(W/D/H)(mm) 950×710×412
(W/D/H)(mm) -
65/-
4
φ6(1/4")
φ9.52(3/8")
5
10
2Technical and specifications
Model
Function Cooling HeatingCooling
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
Output power
Fan type-piece Cross flow fan
Diameter-length(mm)
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Indoor unit
Model
Rated power
Rated current
Throttling method Capillary
Compressor type
Starting method Capacity
Working temperature
Condensor Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece Axial flow fan
Fan blade diameter
Defrost method Auto defrost
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Connection
pipe
Length
Outer
diameter
Max.
distance
Liquid pipe
Gas pipe
Height
Length
Outdoor unit

(W) 2500×2 2900×2
(W) 990×2 1040×2
(A) 4.3×2 4.55×2
(L/h) 1.2 -
(W/W) 2.53 2.79
975 1025
4.15 4.35
(m)
(mm)
(mm)
(m)
(m)
65/-
4
φ6(1/4")
φ9.52(3/8")
5
10
R22/0.8×2R22/0.9×2
dB(A) 58
(W/D/H)(mm) 920×710×412
(W/D/H)(mm) -
(mm) 450
38/700 60/780
—1
1-2.01-1.6
0.4
φ9.52
(℃) 2-43℃
855×366×272
8.5/-
KF-20×2W/A12 KFR-20×2W/A12
(W)975
(A)4.165
(W/D/H)(mm) 770×250×180
(W/D/H)(mm)
-
(μF)
1
dB(A)≤38
2
Controller 3.15A Transformer 0.2A
0.14
MP24GA
φ7×0.41
2-1.6
φ97×583
KF-20×2G/A12 KFR-20×2G/A12
(r/min)(H/M/L)
1060/990/910
(W)13
—1
1.2
C.O.P/EER 2.53
790×2
4.3×2
1Ph 230V 50Hz
2500×2
KF-25×2GW/A12 KFR-25×2GW/A12
Bird Dual-Split type
Bird Dual-Split Type
Model
Function Cooling Cooling Heating
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
O utput power
Fan type-piece Cross flow fan
Diameter-length(mm)
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
I ndoor unit
Model
Rated power
Rated current
Throttling method Capillary
Compressor type
Starting method Capacity
Working temperature
Condensor Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece Axial flow fan
Fan blade diameter
Defrost method Auto defrost
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Connection
pipe
Length
Outer
diameter
Max.
distance
Liquid pipe
Gas pipe
Height
Length
Outdoor unit

(W)
(W)
(A)
(L/h) 1.2 -
(W/W)
(m)
(mm)
(mm)
(m)
(m)
72/-
4
φ6(1/4")
φ12(1/2")
5
10
R22/1.2×2R22/1.25×2
dB(A)
(W/D/H)(mm) 950×840×412
(W/D/H)(mm) -
(mm) 450
60/780
—1
0.4
φ9.52
(℃) ≤Ｔ１５℃
8.5/-
KF-20×2W/A12 KFR-20×2W/A12
(W)
(A)
(W/D/H)(mm) 770×250×180
(W/D/H)(mm)
(μF)
1
dB(A)≤
2
Controller 3.15A Transformer 0.2A
0.14
MP24GA
φ7×0.41
2-1.6
φ97×583
KF-32×2G/A12 KFR-32×2G/A12
(r/min)(H/M/L)
(W)
—1
1.2
C.O.P/EER
1Ph 230V 50Hz
×2
KF-32×2GW/A12 KFR-32×2GW/A12
Model
Function
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
O utput power
Fan type-piece
Cross flow fan
Diameter-length(mm)
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
I ndoor unit
Model
Rated power
Rated current
Throttling method
Capillary
Compressor type
Starting method
Capacity
Working temperature
Condensor Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece
Axial flow fan
Fan blade diameter
Defrost method Auto defrost
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Connection
pipe
Length
Outer
diameter
Max.
distance
Liquid pipe
Gas pipe
Height
Length
Outdoor unit
3200
3200x2
3600x2
1360x2
1339x2
1426x2
6.27x2 8.2x2 7.3x2
2.35 2.31 2.76
1190/1090/990
14
42
855x366x272
1344 1323 1410
6.07 8 7.1
-
60
2-1.8
Cooling Cooling Heating
4

(W)
(W)
(A)
(L/h)
(W/W)
(m)
(mm)
(mm)
(m)
(m)
65/-
4
φ6(1/4")
φ9.52(3/8")
5
10
R407C/0.7×2R407C/0.82×2
dB(A)
(W/D/H)(mm) 950×710×412
(W/D/H)(mm) -
(mm)
80/790
—1
0.4
φ9.52
(℃)
8.5/-
KF-20×2W/NA12 KFR-20×2W/NA12
(W)
(A)
(W/D/H)(mm) 770×250×180
(W/D/H)(mm)
(μF)1
dB(A)
1.5
Controller 3.15A Transformer 0.2A
0.14
MP24GA
φ7×0.41
2-1.6
φ97×583
KF-20×2G/NA12 KFR-20×2G/NA12
(r/min)(H/M/L)
(W)
—1
C.O.P/EER
1Ph 220V-230V 50Hz
KF-20×2GW/NA12 KFR-20×2GW/NA12
Bird Dual-Split type
Bird Dual-Split Type
Model
Function
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
O utput power
Fan type-piece
Cross flow fan
Diameter-length(mm)
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
I ndoor unit
Model
Rated power
Rated current
Throttling method
Capillary
Compressor type
Starting method
Capacity
Working temperature
Condensor Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece
Axial flow fan
Fan blade diameter
Defrost method Auto defrost
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Connection
pipe
Length
Outer
diameter
Max.
distance
Liquid pipe
Gas pipe
Height
Length
Outdoor unit
2.5
1060/900/910
13
38
855x366x272
810
3.53 3.53
-
1-1.8
Cooling Cooling Heating
2000x2 2000x2 2400x2
850x2 850x2 920x2
810 860
3.41
2-43
℃
450
58
3.7x2
0.7
2.8
4.0x2
0.7 0.7
3.7x2
2.8
5

(W)
2500×22900×2
(W) 1080×2 1100×2
(A) 4.70×2 4.78×2
(L/h)
(W/W)
1030 1020
(m)
(mm)
(mm)
(m)
(m)
65/-
4
φ6(1/4")
φ9.52(3/8")
5
10
R407C/0.85×2R407C/0.92×2
dB(A) 58
(W/D/H)(mm) 950×710×412
(W/D/H)(mm) -
(mm) 400
38/700 60/780
—1
1-1.8
0.4
φ9.52
(℃) 2-43℃
4.4
-
8.5/-
KF-25×2W/NA12KFR-25×2W/NA12
(W)1030
(A)
4.2
(W/D/H)(mm) 770×250×180
(W/D/H)(mm)
855×360×272
(μF)1
dB(A)
38
2
Controller 3.15A Transformer0.2A
0.14
MP24GA
φ7×0.41
2-1.6
φ97×583
KF-25×2G/NA12KFR-25×2G/NA12
(r/min)(H/M/L) 1060/900/910
13
—1
1.2
C.O.P/EER 2.5 2.8
1100×2
4.78×2
1Ph 230V 50Hz
2500×2
KF-25×2GW/NA12 KFR-25×2GW/NA12
Model
Function
Cooling
Cooling
Heating
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
Output power(W)
Fan type-piece Cross flow fan
Diameter-length(mm)
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Model
Rated power
Rated current
Throttling method Capillary
Compressor type
Starting method Capacity
Working temperature
Condensor Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece Axial flow fan
Fan blade diameter
Defrost method Auto defrost
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Connection
pipe
Length
Liquid pipe
Gas pipe
Height
Length
Outer
diameter
Max
distance
Outdoor unit
Indoor unit

(W) 3200×2 3800×2
(W) 1390×2 1490×2
(A) 13.5 14
(L/h)
(W/W) 2.3 2.55
1280 1420
5.8 6.3
(m)
(mm)
(mm)
(m)
(m)
70/-
4
φ6(1/4")
φ12(1/2")
5
10
R407C/1.20×2R407C/1.25×2
dB(A)
62
(W/D/H)(mm)
950×710×412
(W/D/H)(mm)
-
(mm) 400
60/780
—1
1-1.6
0.4
φ9.52
(℃) 2-43℃
-
8.5/-
KF-32×2W/NA12 KFR-32×2W/NA12
(W)
1440
(A)
6
(W/D/H)(mm) 770×250×180
(W/D/H)(mm) 855×362×272
(μF)1
dB(A)
40
2
—/3.15A
/
MP24GA
φ0.7×0.41
2-1.4
φ97×583
KF-32×2G/NA12 KFR-32×2G/NA12
(r/min)(H/M/L)
1190/1090/990
(W)8W
—1
/
C.O.P/EER 2.3
1390×2
13.5
1Ph 230V 50Hz
3200×2
KF-32×2GW/NA12 KFR-32×2GW/NA12
Bird Dual-Split type
Bird Dual-Split Type
Model
Function Cooling Heating
Cooling
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
Output power
Fan type-piece Cross flow fan
Diameter-length(mm)
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Indoor unit
Model
Rated power
Rated current
Throttling method Capillary
Compressor type
Starting method Capacity
Working temperature
Condensor Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece Axial flow fan
Fan blade diameter
Defrost method Auto defrost
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Connection
pipe
Length
Outer
diameter
Max.
distance
Liquid pipe
Gas pipe
Height
Length
Outdoor unit

(W) 2500×2 2900×2
(W) 970×2 1050×2
(A) 4.2×2 4.3×2
(L/h) 1.2
-
(W/W) 2.9 3.3
(m)
(mm)
mm)
(m)
(m)
GSW(9×2)-22L/AGSW(9×2)-22R/A
1Ph 220V 50Hz
2500×2
870×2
4.03×2
1.2
C.O.P/EER 2.78
GSW(9×2)-22L/AGSW(9×2)-22R/A
(r/min)(H/M/L)
1050/960/900
20
—1
φ97×583
φ7×0.41
2-1.6
0.14
MP24GA
2
Controller3.15A Transformer 0.2A
(μF)1
dB(A)≤36 ≤37
(W/D/H)(mm)
770×250×180
(W/D/H)(mm) 855×362×272
8.5/-
GSW(9×2)-22L/AGSW(9×2)-22R/A
(W)
908 919
(A)
4.17 4.18
-
(℃)
2-43℃
φ9.52
(mm)2-1.8
0.4
60/780
—1
(mm)450
dB(A)
56 58
(W/D/H)(mm) 950×710×412
(W/D/H)(mm)
-
65/-
R22/0.85×2R22/0.95×2
4
φ6(1/4")
φ9.52(3/8")
5
10
Cooling HeatingCooling
Model
Function
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
Output power(W)
Fan type-piece
Diameter-length(mm)
Cross flow fan
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Model
Rated power
Rated current
Throttling method
Compressor type
Starting method
Capillary
Capacity
Working temperature
Condensor
Pipe diameter
Row- fin distance(mm)
Aluminum fin-copper tube
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece Axial flow fan
Fan blade diameter
Defrost method Auto defrost
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Outdoor unit
Indoor unit
Connection
pipe
Length
Outer
diameter
Liquid pipe
Gas pipe
Max. distanceHeight
Length

(W) 2500×2 2900×2
(W) 970×2 1050×2
(A) 4.2×2 4.3×2
(L/h) 1.2
-
(W/W) 2.9 3.3
(m)
(mm)
(mm)
(m)
(m)
GSW(12X2)-22L/A
1Ph 220V 50Hz
32000×2
1555.5
8.015
1.2
C.O.P/EER 2.6
GSW(12×2)-22L/A
(r/min)(H/M/L) 1200/1100/1000
14
—1
φ97×538
φ7
2-1.4
0.14
MP24GA
2
PCB 3.15A Transformer 0.2A
(μF)1
dB(A) 41/36(H/L)
(W/D/H)(mm)
770×180×250
(W/D/H)(mm) 855×362×272
8.5/12.5
GSW(12×2)-22L/AGSW(9×2)-22R/A
(W)-919
-4
.18
-
(℃)
2~43℃
φ9.52
2-1.8
(m2)
0.482
38/720
—1
(mm)
450
dB(A)
56
(W/D/H)(mm) 950×412×710
(W/D/H)(mm)
1100×450×775
65/70
R22/0.85×2
4
φ6(1/4")
φ12(1/2")
5
10
Bird Dual-Split type
Bird Dual-Split Type
The technical data are subject to change without notice. Please refer to the nameplate of the unit.
Model
Function Cooling
Power supply(Phase-Frequency-Voltage)
Capaicty
Rated power
Rated current
Dehumidify volume
Model
Fan speed
Output power(W)
Fan type-piece Cross flow fan
Diameter-length(mm)
Evaporator Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Stepping motor
Motor power (W)
Control method/Fuse(A)
Running capacity
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Indoor unit
Model
Rated power
Rated current (A)
Throttling method Capillary
Compressor type
Starting method Capacity
Working temperature
Condensor Aluminum fin-copper tube
Pipe diameter
Row- fin distance(mm)
Working area (m2)
Fan motor power (W)/ speed (rpm)
Fan type-piece Axial flow fan
Fan blade diameter
Defrost method
Noise
Outline dimension
Package dimension
Net weight/Gross weight(kg)
Refrigerant/refrigerant charge(kg)
Outdoor unit
Connection
pipe
Length
Outer diamete r
Max.
distance
Liquid pipe
Gas pipe
Height
Length

3Spare part name
Air in
Air out
Unit A
U nit B
Air out
Air in
Air in
Air out
Front panel
Filter
Air cleaner
Wireless remote control
Manual switch
Guide louver
Power plug
Water drainage pipe
Air outlet grille
Covering plate

4
Bird Dual-Split type
Bird Dual-Split Type
Outline and installation dimension
Ceiling
Installation dimension

ｍｍ
Screw
Nut
Spanner
above
above
above
above
Unit:

5
Bird Dual-Split type
Bird Dual-Split Type
Cooling system diagram
Cooling system diagram for cooling only type
Evaporator Cross flow fan Filter
Capillary
Axial flow fan
Condenser
Compressor
Gas-liquid separator
When the power is on, indoor and outdoor units will start to run. The compressor sucks low-pressure refrigerant gas from the evaporator of
indoor unit and then discharges high-temperature, high-pressure refrigerant gas into outdoor condenser. Then air exchanges the heat with outdoor air
and becomes refrigerant liquid. The liquid is throttled by the capillary and changes into low-temperature and low-pressure liquid and then flows
into indoor evaporator. Then liquid exchanges the heat with the required air and changes into low-temperature and low-pressure refrigerant gas.
The cycle introduced above goes on and on, and the demanded low temperature environment is maintained.
Cooling system diagram for cooling/heating type
Evaporator Cross flow fan One-way valve Main capillary Filter
Auxillary capillary
Axial flow fan
Condenser
E lectromagnetic
4-way valve
Gas-liquid separator Compressor
Heating
Cooling
When the power is on, indoor and outdoor units will start to run. When the system operates in cool mode, the compressor sucks low-temperature, low-
pressure refrigerant gas from indoor evaporator and then discharges high-temperature, high-pressure refrigerant gas into outdoor heat exchanger. With
the help of axial flow fan, the gas transfers its latent heat into outdoor air and becomes high-pressure refrigerant liquid. The liquid is throttled by the
capillary and changes into low-temperature and low-pressure liquid and then flows into indoor heat exchanger. With the help of centrifugal fan, the
liquid evaporates into low-temperature refrigerant gas and indoor air is cooled down. The refrigerant gas is sucked into the compressor and the cycle
introduced above goes on and on, and the demanded low temperature environment is maintained.
When the system operates in heat mode, 4-way valve changes its way and the refrigerant flows into the reversible cycle as the cool mode. The
re frigerant discharges its latent heat in the indoor heat exchanger, and sucks heat from outdoor heat exchanger and forms the heat pump cycle.
T his cycle goes on and on, and the demanded high temperature environment is maintained.

6Circuit diagram

Bird Dual-Split type
Bird Dual-Split Type

Bird Dual-Split type
Bird Dual-Split Type
These circuit diagrams are subject to change without notice. Please refer to the ones stuck on the machines.

These circuit diagrams are subject to change without notice. Please refer to the ones stuck on the machines.

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77
77
7
Bird Dual-Split type
Bird Dual-Split Type
PCB function manual and operation method
PCB function manual
Temperature parameter
The room set temperature: (Tset)
The room ambient temperature:(Tamb)
The evaporator tube temperature: (Ttube)
The condenser tube temperature: (Tdefrost)
Foundamental functions
After power is on, no matter when compressor is started, the time span between the startups cannot be less than 3 minutes.
COOL mode
Cooling condition
If Tamb≥Tset+1℃,COOL mode will act, compressor and outdoor fan will run, indoor fan will run at the set speed.
If Tamb≤Tset－１℃，tunit will stop , compressor will stop and then outdoor fan will delay 15sec and stop.
If Tset-1℃＜Tamb＜Tset+1℃, the unit will keep running in the old mode.
In this mode, the reversal valve will not power on, the setting temp. range:16℃~30℃
Protection Functions
Overcurrent Portection
When the system current is tested higher than 13A, only fan will run. After 3 minutes, the whole unit will run in the old
mode, if the overcurrent cannot be eliminated, the whole unit will stop, and can be restarted by the wireless remote control.
Antifreezing Protection
When the system is tested, the compressor and outdoor fan will stop, indoor fan will run at the set speed; when the antifreezing protection is
and the compressor has stopped for 3min, the unit will return to the old mode.
Tset
Tset
Ambient set 
temp.Tamb
Start the cooling
Keep running in the old mode
Stopping the cooling
3Min
Run at the set speed
Run at the set speed
Running
Stop
Compressor
Outdoor fan
Indoor fan
Current
3Min
Running
Stop
Compressor
Outdoor fan
Indoor fan




DRY Mode
The conditions and processes of dehumidifying:
If T amb>Tset+2℃, the cooling mode will act, indoor fan speed could be adjusted, outdoor fan will run.
indoor fan will delay 30secs and stop, after 3.5mins, compressor and outdoor fan will run, and indoor fan will run at the low low speed. The processes of dehumidifying
a re shown as the above cycle.
If Tset -2℃≤Troom≤Ｔset+2℃，DRY mode will act, the indoor fan will run at the low speed.after running for 6mins, outdoor fan and compressor will stop, but
If Tamb＜ Ｔset-2℃, the unit will stop, the compressor will stop, after 15sec latter, outdoor fan will stop, after another 15sec, indoor fan will stop.
In this mode, the reversal valve will not power on, the setting temp. range:16℃~30℃.
Protection Functions
Antifreezing Protection
When running in COOL mode, antifreezing protection is the same as the cooling. The DRY mode act, when the antifreezing protection is detected,
the compressor will stop, but outdoor fan will delay 15secs and stop, indoor fan will run at low speed; when antifreezing protection is eliminated and
compressor has stopped for 3min, the whole unit will run at the original status.
HEAT Mode
The conditions and processes of heating
In this mode, the reversal valve will not power on, the setting temp. range:16℃~30℃.
If Tamb ≤Tset+2℃, HEAT mode will act, compressor, outdoor fan and reversing valve will run, but indoor fan will after 20sec delayed and run.
If Tamb≥Tset+4℃, Compressor will stop first, outdoor fan will delay 15s and stop, reversing valve will keep working, after 30secs indoor fan will blow
the surplus heat, after 30secs it will stop.
If Tset+2℃＜T set＜T set +4℃,the unit will keep running in the old mode.
20
During the antifreezing protection
Compressor
Outdoor fan
Indoor fan
Running
Stop
3Min
Run at the set speed
Compressor
Outdoor fan
Indoor fan
Running
Stop
Start the cooling
Dehumidifying operation
Stop the cooling
Fan speed could 
be adjusted
Low speed
Low speed
Min
Min
Min
Min
Tset
Tset
Ambient temp.Tamb
During the antifreezing protection
Compressor
Outdoor fan
Indoor fan
Running
Stop
Low speed
3Min
Tset
Tset
Compressor
Outdoor fan
Indoor fan
Reversal valve
Running
Stop
Low speed
Ambient temp. Tamb
Stop the heating
Keep running in the old mode
Start the heating
Min