Page 1
HVAC EUROPE
SPLIT TYPE, HEAT PUMP AIR CONDITIONERS
Technical & service manual 2005
R410a Wall Mounted
[Models]
GCM07N niet leverbaar
GHM07N niet leverbaar
GCM09N
GHM09N
GCM12N
GHM12N
GCM18N
GHM18N
Page 2
1
GC(H)M Series (R410A)
Contents
1. Features………………………………………………………………… 02
2. Specification………………………………………………………..……03
3. Dimensions…………………………………………………………..… 05
4. Refrigeration cycle diagram……………………………………………09
5. Pressure table…………….……………………………………….……10
6. Capacity table…………………………………………………………...14
7. Wiring diagram…………………………………………………..………20
8. Electronic function………………………………………….…………...25
9. Troubleshooting……………………………………………………….…33
10. Characteristic of temp. sensor…………………………………………36
Page 3
2
1.Features
1.1 Compact design
1.2 High efficiency and quiet operation
1.3 A class energy level
Page 4
3
2.Specification
Model
GCM-
07N GHM-
07N GCM-09N GHM-
09N
Power supply
Ph-V-Hz
1, 220-240V~, 50Hz
1, 220-240V~, 50Hz
1, 220-240V~, 50Hz
1, 220-240V~, 50Hz
Capacity
Btu/h 7000 7000 9000 9000
Input
W
640 640 820 820
Rated current
A
2.8 2.8 3.6 3.6
Cooling
EER
Btu/w.h, w/w
11,3.2 11,3.2 11,3.2 11,3.2
Ca
pacity
Btu/h
8500
11000
Input
W 690
890
Rated current
A 3.0
3.9
Heating
COP
W/W
3.6
3.6
Moisture Removal
L/h 0.7 0.7 1.0 1.0
Max. input consumption
W
850 1000 1000 1200
Max. current
A
3.8 4.5 4.5 5.3
Starting current
A
Model
PA82X1C
-
4DZDE PA82X1C
-
4DZDE PA108X1C
-
4FTDE PA108X1C
-
4FTDE
Type
Rotary Rotary Rotary Rotary
Brand
TOSHIBA
TOSHIBA
TOSHIBA
TOSHIBA
Capacity
Btu/h 7000 7000 9000 9000
Input
W
730 730 920 920
Rated current(RLA)
A
3.3 3.3 4.1 4.1
Locked rotor Amp(LRA)
A
16.0 16.0 18.7 18.7
Thermal protector
MRA13408
-
9087 MRA13408
-
9087 MRA13430
-
9087 MRA13430
-
9087
Capacitor
uF 25 25 25 25
Compressor
Ref
rigerant oil
ml
300 300 330 330
Model
RPG13H
RPG13H
RPG13H
RPG13H
Brand
Welling Welling Welling Welling
Input
W
36.5 36.5 39.5 39.5
Capacitor
uF
1.2 1.2 1.2 1.2
Indoor fan motor
Speed(hi/mi/lo)
r/min 1050/920/820
1050/9
20/820 1200/950/850
1200/950/850
Indoor air flow (Hi/Mi/Lo)
m3/h 450/400/350
450/400/350
500/430/370
500/430/370
Indoor noise level (Hi/Mi/Lo)
dB(A) 35/32/30
35/32/30
37/34/31
37/34/31
Dimension (W*H*D)
mm
710×250×190
710×250×190
710×250
×195 710×250×195
Packing (W*H*D)
mm
800×340×270
800×340×270
800×340×270
800×340×270
Indoor unit
Net/Gross weight
Kg
8/10 8/10 8/10 8/10
Model
YDK24-6T YDK24-6T YDK24-6F YDK24-6F
Brand
Welling Welling Welling Welling
Input
W 56 56 56 56
Capacitor
uF
2.5 2.5 2.5 2.5
Outdoor fan motor
Speed
r/min 800 800 800 800
Outdoor air flow
m3/h 1500 1500 1800 1800
Outdoor no
ise level
dB(A) 49 49 50 50
Dimension(W*H*D)
mm
700X535X235
700X535X235
780X540X250
780X540X250
Packing (W*H*D)
mm
815X580X325
815X580X325
910X575X335
910X575X335
Outdoor unit
Net/Gross weight
Kg
31/34 32/35 36/39 37/40
Refrigerant type R4
10A
g
800 820 900 920
Design pressure
MPa 4.2 4.2 4.2 4.2
Liquid side/ Gas side
mm(inch)
Ф
6.35/Ф9.53
Ф
6.35/Ф9.53
Ф
6.35/Ф9.53
Ф
6.35/Ф9.53
Max. refrigerant pipe length
m 10 10 10 10
Refrigerant piping
Max. difference in level
m 5 5 5 5
Connection wiring
No No No No
Plug type
16A 16A 16A 16A
Thermostat type
Electrolic control
Electroli
c control Electrolic control
Electrolic control
Operation temp
℃
17-30 17-30 17-30 17-30
Ambient temp
℃
18~-45 -7 -~
45 18~-45 -7 -~
45
Application area
m2 10-14 10-14 14-21 14-21
Qty’per 20’ /40’ /40'HQ
set 126/272/298
126/272/298
113/238/274
113/238/274
★
1 The noise date is base on hemi-anechoic chamber, during actual operation, these values are normally somewhat different as a result of ambient
condition.
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Model
GCM-12N GHM-
12N GCM-
18N GHM-18N
Power su
pply Ph-V-Hz 1, 220-240V~, 50Hz
1, 220-240V~, 50Hz
1, 220-240V~,50Hz
1, 220-240V~,50Hz
Capacity
Btu/h 12000 12000 18000 18000
Input
W
1120 1120 1720 1720
Rated current
A
5.0 5.0 7.8 7.8
Cooling
EER
Btu/w.h,
w/w 11,3.2 11,3.2 10.5,3.1 10.5,3.1
Capacity
15000
19000
Input
1180
1650
Rated current
5.3
8.0
Heating
COP
3.6
3.4
Moisture Removal
L/h 1.2 1.2 1.6 1.6
Max. input
consumption
W
1550 1550 2500 2500
Max. current
A 10 10
11.5 11.5
Starting current
A 30 30
42.5 42.5
Model
PA140X2C
-
4FT PA140X2C
-
4FT
PA200X2CS
-
4KU1 PA200X2CS
-
4KU1
Type
rotary R
otary Rotary Rotary
Brand
TOSHIBA
TOSHIBA
Toshiba Toshiba
Capacity
Btu/h 12000 12000 16910 16910
Input
W
1200 1200 1720 1720
Rated current(RLA)
A
5.4 5.4 7.50 7.50
Locked rotor Amp(LRA)
A
29.9 29.9 34.5 34.5
Thermal protector
UP3RE059
1-T56 UP3RE0591
-
T56 Internal Internal
Capacitor
uF 35 35 45 45
Compressor
Refrigerant oil
ml
480 480 ESTER OIL VG74 ·750
ESTER OIL VG74 ·750
Model
RPG13D
RPG13D
RPG28D
RPG28D
Brand
Welling Welling Welling Welling
Input
W 44 44 53 53
Capacitor
uF
1.2 1.2 1.5uF/450V
1.5uF/450V
Indoor fan motor
Speed(hi/mi/lo)
r/min 1220/1000/800
1220/1000/800
1180/1080/800
1180/1080/800
Indoor air flow (Hi/Mi/Lo)
m3/h 580/500/420
600/520/420
850/700/600
850/700/600
Ind
oor noise level (Hi/Mi/Lo)
dB(A) 40/37/34
40/37/34
42/39/37
42/39/37
Dimension (W*H*D)
mm
790×265×193
790×265×193
920×292×225
1000×353×280
Packing (W*H*D)
mm
875x285x375
875x285x375
1015×368×295
1015×368×295
Indoor unit
Net/Gross weight
Kg
9.0/11.5
9/11 13/15 13/15
Model
YDK24-6F YDK24-6F YDK53-6K YDK53-6K
Brand
Welling Welling Welling Welling
Input
W 56 56
125 125
Capacitor
uF
2.5 2.5 3.5 3.5
Outdoor fan motor
Speed
r/min 800 800 800 800
Outdoor air flow
m3/h 1800 1800 2500 2500
Outdoor noise level
dB(A) 50 50 52 52
Dimension(W*H*D)
mm
780X540X250
780X540X250
845X695X335
845X695X335
Packing (W*H*D)
mm
910X575X335
910X575X335
970X770X395
970X770X395
Outdoor unit
Net/Gross weight
Kg
37/40 38/41 52/56 52/56
Refrigerant type R410A
g
1050 1080 1690 1740
Design pressure
MPa 4.2 4.2 3.8 3.8
Liquid side/ Gas side
mm(inch)
Ф
6.35/Ф12.7
Ф
6.35/Ф12.7
Ф
6.35/Ф12.7
Ф
6.35/Ф12.7
Max. refrigerant pipe length
m 10 10 15 15
Refrigerant piping
Max. difference in level
m 5 5 8 8
Connection wiring
No No No No
Plug type
16A 16A NO PLUG
NO PLUG
Thermostat type
Electrolic control
Electrolic control
Electronic control
Electronic control
Operation temp
℃
17-30 17-30 17-30 17-30
Ambient temp
℃
18~-45 -7 -~
45
18-45 -
7~45
Application area
m2 18-26 18-26
28~40 28~40
Qty’per 20’ /40’ /40'HQ
set 94/199/232
94/199/232
70 / 148 / 170
70 / 148 / 170
★
1 The noise date is base on hemi-anechoic chamber, during actual operation, these values are normally somewhat different as a result of ambient
condition.
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3.Dimensions
3.1 Indoor unit
GCM-07N,GHM07N,GCM09N,GHM09N
3.2 Indoor unit
GCM-12N, GHM12N
Page 7
6
3.2 Indoor unit
GCM-18N,GHM18N
Page 8
7
3.4 Outdoor unit
GCM-07N,GHM07N
3.5 Outdoor unit
GCM-09N1,GHM09N,GCM12N,GHM12N
Page 9
8
GCM-18N,GHM18N
12.5
Page 10
9
4.Refrigeration cycle diagram
Page 11
10
5. Pressure table
Note:
*The pressure data is from 3 way valve, the pressure data are pressure above atmosphere.
*D: Dry bulb temp.
*W: Wet bulb temp.
5.1GCM07N
Cooling mode
Outdoor temperature (Dry bulb temp)
Indoor Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
6.2 6.7 7.2 8.0 8.5 9.4
24ºC D
17ºC W
Pressure
( kg/cm2 )
6.3 6.5 7.5 8.1 8.7 9.5
27ºC D
19ºC W
Pressure
( kg/cm2 )
6.1 6.8 7.7 8.2 9.0 10.0
32ºC D
23ºC W
Pressure
( kg/cm2 )
7.0 7.3 7.8 8.4 9.2 10.1
.2GHM07N
Cooling mode
Outdoor temperature (Dry bulb temp)
Indoor
Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
6.2 6.7 7.2 8.0 8.5 9.4
24ºC D
17ºC W
Pressure
( kg/cm2 )
6.3 6.5 7.5 8.1 8.7 9.5
27ºC D
19ºC W
Pressure
( kg/cm2 )
6.1 6.8 7.7 8.2 9.0 10.0
32ºC D
23ºC W
Pressure
( kg/cm2 )
7.0 7.3 7.8 8.4 9.2 10.1
Heating mode
OUTDOOR CONDITIONS
Indoor Conditions
Pressure
12ºC D
11ºC W
7ºC D
6ºC W
0
ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-9ºC W
-15ºC D
-xºC W
15ºC
Pressure
( kg/cm2 )
24.0 23.0 21.5 21.0 20..5 /
18ºC
Pressure
( kg/cm2 )
24.6 23.5 23.0 22.6 20.8 /
20ºC
Pressure
( kg/cm2 )
25.0 24.2 24.0 23.0 21.0 /
22ºC
Pressure
( kg/cm2 )
25.3 24.6 24.5 23.8 21.7 /
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5.3GCM09N
Cooling mode
Outdoor temperature (Dry bulb temp)
Indoor Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
7.8 8.1 8.4 9.0 9.3 10.0
24ºC D
17ºC W
Pressure
( kg/cm2 )
7.9 8.2 8.7 9.0 9.5 10.1
27ºC D
19ºC W
Pressure
( kg/cm2 )
8.0 8.5 9.2 9.9 10.2 10.8
32ºC D
23ºC W
Pressure
( kg/cm2 )
8.8 9.1 9.2 10.0 10.5 11.2
5.4GHM09N
Cooling mode
Outdoor temperature (Dry bulb temp)
Indoor Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
7.8 8.1 8.4 9.0 9.3 10.0
24ºC D
17ºC W
Pressure
( kg/cm2 )
7.9 8.2 8.7 9.0 9.5 10.1
27ºC D
19ºC W
Pressure
( kg/cm2 )
8.0 8.5 9.2 9.9 10.2 10.8
32ºC D
23ºC W
Pressure
( kg/cm2 )
8.8 9.1 9.2 10.0 10.5 11.2
Heating mode
OUTDOOR CONDITIONS
Indoor Conditions
Pressure
12ºC D
11ºC W
7ºC D
6ºC W
0ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-9ºC W
-15ºC D
-xºC W
15ºC
Pressure
( kg/cm2 )
26.5 25.0 22.0 21.5 20.5 /
18ºC
Pressure
( kg/cm2 )
27.0 26.0 23.5 22.5 20.8 /
20ºC
Pressure
( kg/cm2 )
27.5 26.5 25.0 23.0 21.0 /
22ºC
Pressure
( kg/cm
2
)
28.5 27.0 25.5 23.9 21.5 /
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5.5GCM12N
Cooling mode
Outdoor temperature (Dry bulb temp)
Indoor Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
8.4 8.5 8.8 8.9 9.4 9.9
24ºC D
17ºC W
Pressure
( kg/cm2 )
8.6 8.8 9.2 9.4 10.0 10.4
27ºC D
19ºC W
Pressure
( kg/cm2 )
8.8 9.2 9.4 9.8 10.3 10.9
32ºC D
23ºC W
Pressure
( kg/cm2 )
9.2 9.6 9.9 10.4 10.8 11.2
5.6GHM12N
Cooling mode Outdoor temperature (Dry bulb temp)
Indoor Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
8.4 8.5 8.8 8.9 9.4 9.9
24ºC D
17ºC W
Pressure
( kg/cm2 )
8.6 8.8 9.2 9.4 10.0 10.4
27ºC D
19ºC W
Pressure
( kg/cm2 )
8.8 9.2 9.4 9.8 10.3 10.9
32ºC D
23ºC W
Pressure
( kg/cm2 )
9.2 9.6 9.9 10.4 10.8 11.2
Heating mode
OUTDOOR CONDITIONS
Indoor Conditions
Pressure
12ºC D
11ºC W
7ºC D
6ºC W
0ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-9ºC W
-15ºC D
-xºC W
15ºC
Pressure
( kg/cm2 )
27.4 25.9 22.2 21.4 20.0 /
18ºC
Pressure
( kg/cm2 )
29.8 27.2 23.8 22.0 21.1 /
20ºC
Pressure
( kg/cm2 )
30.2 29.1 24.2 23.6 22.1 /
22ºC
Pressure
( kg/cm
2
)
32.4 30.1 25.4 24.0 22.7 /
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5.7GCM18N
Cooling mode
Outdoor temperature (Dry bulb temp)
Indoor Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
8.5 8.6 8.9 9.0 9.4 9.9
24ºC D
17ºC W
Pressure
( kg/cm2 )
8.7 8.9 9.3 9.5 10.0 10.5
27ºC D
19ºC W
Pressure
( kg/cm2 )
8.9 9.2 9.5 9.9 10.4 10.9
32ºC D
23ºC W
Pressure
( kg/cm2 )
9.3 9.7 9.9 10.5 10.9 11.3
5.8GHM18N
Cooling mode
Outdoor temperature (Dry bulb temp)
Indoor Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm2 )
8.5 8.6 8.9 9.0 9.4 9.9
24ºC D
17ºC W
Pressure
( kg/cm2 )
8.7 8.9 9.3 9.5 10.0 10.5
27ºC D
19ºC W
Pressure
( kg/cm2 )
8.9 9.2 9.5 9.9 10.4 10.9
32ºC D
23ºC W
Pressure
( kg/cm2 )
9.3 9.7 9.9 10.5 10.9 11.3
Heating mode
OUTDOOR CONDITIONS
Indoor Conditions
Pressure
12ºC D
11ºC W
7ºC D
6ºC W
0ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-9ºC W
-15ºC D
-xºC W
15ºC
Pressure
( kg/cm2 )
28.2 27.0 21.4 20.6 20.2 /
18ºC
Pressure
( kg/cm2 )
30.6 28.2 24.6 22.8 22.1 /
20ºC
Pressure
( kg/cm2 )
31.2 29.9 25.2 24.6 23.1 /
22ºC
Pressure
( kg/cm
2
)
33.3 31.1 26.2 25.2 23.8 /
Page 15
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6. Capacity table
6.1GCM07N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 2.04 1.94 1.7 1.61 1.53 1.41
Sensitive capacity kW
1.52 1.41 1.39 1.32 1.19 1.07
21ºC D
15ºC W
Input kW. 0.53 0.58 0.6 0.67 0.73 0.8
Total capacity kW 2.14 2.05 1.93 1.81 1.73 1.51
Sensitive capacity kW
1.61 1.46 1.45 1.54 1.23 1.15
24ºC D
17ºC W
Input kW. 0.54 0.6 0.62 0.7 0.74 0.82
Total capacity kW 2.31 2.24
2.1
1.95 1.7 1.65
Sensitive capacity kW
1.78 1.65
1.56
1.43 1.26 1.28
27ºC D
19ºC W
Input kW. 0.57 0.62
0.64
0.71 0.75 0.83
Total capacity kW 2.33 2.36 2.31 2.25 2.15 2.03
Sensitive capacity kW
1.83 1.67 1.65 1.64 1.57 1.52
32ºC D
23ºC W
Input kW. 0.58 0.64 0.66 0.73 0.8 0.86
6.2GHM07N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 2.04 1.94 1.7 1.61 1.53 1.41
Sensitive capacity kW
1.52 1.41 1.39 1.32 1.19 1.07
21ºC D
15ºC W
Input kW. 0.53 0.58 0.6 0.67 0.73 0.8
Total capacity kW 2.14 2.05 1.93 1.81 1.73 1.51
Sensitive capacity kW
1.61 1.46 1.45 1.54 1.23 1.15
24ºC D
17ºC W
Input kW. 0.54 0.6 0.62 0.7 0.74 0.82
Total capacity kW 2.31 2.24
2.1
1.95 1.7 1.65
Sensitive capacity kW
1.78 1.65
1.56
1.43 1.26 1.28
27ºC D
19ºC W
Input kW. 0.57 0.62
0.64
0.71 0.75 0.83
Total capacity kW 2.33 2.36 2.31 2.25 2.15 2.03
Sensitive capacity kW
1.83 1.67 1.65 1.64 1.57 1.52
32ºC D
23ºC W
Input kW. 0.58 0.64 0.66 0.73 0.8 0.86
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WINTER OUTDOOR CONDITIONS
Indoor
Conditions
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-8ºC W
Capacity kW 3.01 2.73 2.47 1.76 1.65 1.58
15ºC
Input kW. 0.76 0.66 0.6 0.58 0.5 0.45
Capacity kW 2.86 2.64 2.34 1.69 1.53 1.41
18ºC
Input kW. 0.78 0.67 0.62 0.59 0.62 0.47
Capacity kW 2.77
2.3
2.22 1.62 1.59 1.33
20ºC
Input kW. 0.81
0.65
0.64 0.59 0.53 0.48
Capacity kW 2.61 2.23 2.13 1.58 1.26 1.17
22ºC
Input kW. 0.83 0.68 0.65 0.6 0.56 0.51
6.3GCM09N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 2.42 2.41 2.24 2.03 1.87 1.75
Sensitive capacity kW
1.72 1.69 1.65 1.53 1.43 1.36
21ºC D
15ºC W
Input kW. 0.72 0.75 0.8 0.84 0.89 0.97
Total capacity kW 0.65 2.55 2.45 2.24 2.11 1.98
Sensitive capacity kW
1.83 1.73 1.7 1.63 1.63 1.57
24ºC D
17ºC W
Input kW. 0.68 0.76 0.81 0.88 0.93 1.02
Total capacity kW 2.89 2.8
2.6
2.45 2.23 2.05
Sensitive capacity kW
1.99 1.95
1.81
1.78 1.66 1.63
27ºC D
19ºC W
Input kW. 0.65 0.78
0.82
0.92 0.96 1.03
Total capacity kW 3.03 2.98 2.92 2.83 2.69 2.46
Sensitive capacity kW
2.05 1.88 1.96 1.87 1.87 1.85
32ºC D
23ºC W
Input kW. 0.65 0.8 0.86 0.95 0.99 1.08
Page 17
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6.4GHM09N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 2.42 2.41 2.24 2.03 1.87 1.75
Sensitive capacity kW
1.72 1.69 1.65 1.53 1.43 1.36
21ºC D
15ºC W
Input kW. 0.72 0.75 0.8 0.84 0.89 0.97
Total capacity kW 0.65 2.55 2.45 2.24 2.11 1.98
Sensitive capacity kW
1.83 1.73 1.7 1.63 1.63 1.57
24ºC D
17ºC W
Input kW. 0.68 0.76 0.81 0.88 0.93 1.02
Total capacity kW 2.89 2.8
2.6
2.45 2.23 2.05
Sensitive capacity kW
1.99 1.95
1.81
1.78 1.66 1.63
27ºC D
19ºC W
Input kW. 0.65 0.78
0.82
0.92 0.96 1.03
Total capacity kW 3.03 2.98 2.92 2.83 2.69 2.46
Sensitive capacity kW
2.05 1.88 1.96 1.87 1.87 1.85
32ºC D
23ºC W
Input kW. 0.65 0.8 0.86 0.95 0.99 1.08
WINTER OUTDOOR CONDITIONS
Indoor
Conditions
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-8ºC W
Capacity kW 3.75 3.38 3.02 1.97 1.59 1.52
15ºC
Input kW. 0.97 0.84 0.73 0.65 0.62 0.63
Capacity kW 3.52 3.26 2.94 1.84 1.6 1.49
18ºC
Input kW. 0.98 0.86 0.78 0.7 0.65 0.68
Capacity kW 3.4
3
2.85 1.82 1.56 1.5
20ºC
Input kW. 1.02
0.82
0.8 0.74 0.68 0.67
Capacity kW 3.11 2.93 2.72 1.73 1.58 1.42
22ºC
Input kW. 1.06 0.93 0.82 0.77 0.71 0.65
Page 18
17
6.5GCM12N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 3.276 3.187 3.105 2.821 2.746 2.621
Sensitive capacity kW
2.567 2.457 2.413 2.287 2.21 2.087
21ºC D
15ºC W
Input kW. 0.89 1.01 1.082 1.188 1.243 1.337
Total capacity kW 3.663 3.503 3.315 3.148 3.076 2.932
Sensitive capacity kW
2.918 2.766 2.725 2.557 2.453 2.334
24ºC D
17ºC W
Input kW. 0.915 1.033 1.121 1.228 1.278 1.367
Total capacity kW 3.86 3.7
3.5
3.371 3.215 3.125
Sensitive capacity kW
3.039 2.913
2.832
2.645 2.567 2.419
27ºC D
19ºC W
Input kW. 0.944 1.048
1.1
1.253 1.312 1.426
Total capacity kW 4.215 4.1 3.845 3.601 3.501 3.313
Sensitive capacity kW
3.12 2.939 2.891 2.715 2.589 2.503
32ºC D
23ºC W
Input kW. 0.969 1.088 1.189 1.302 1.349 1.455
6.6GHM12N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 3.276 3.187 3.105 2.821 2.746 2.621
Sensitive capacity kW
2.567 2.457 2.413 2.287 2.21 2.087
21ºC D
15ºC W
Input kW. 0.89 1.01 1.082 1.188 1.243 1.337
Total capacity kW 3.663 3.503 3.315 3.148 3.076 2.932
Sensitive capacity kW
2.918 2.766 2.725 2.557 2.453 2.334
24ºC D
17ºC W
Input kW. 0.915 1.033 1.121 1.228 1.278 1.367
Total capacity kW 3.86 3.7
3.5
3.371 3.215 3.125
Sensitive capacity kW
3.039 2.913
2.832
2.645 2.567 2.419
27ºC D
19ºC W
Input kW. 0.944 1.048
1.1
1.253 1.312 1.426
Total capacity kW 4.215 4.1 3.845 3.601 3.501 3.313
Sensitive capacity kW
3.12 2.939 2.891 2.715 2.589 2.503
32ºC D
23ºC W
Input kW. 0.969 1.088 1.189 1.302 1.349 1.455
Page 19
18
WINTER OUTDOOR CONDITIONS
Indoor
Conditions
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-8ºC W
Capacity kW 4.446 4.264 4.132 3.838 3.335 3.305
15ºC
Input kW. 1.141 1.106 1.059 1.035 0.895 0.812
Capacity kW 4.38 4.248 3.954 3.761 3.258 2.948
18ºC
Input kW. 1.188 1.153 1.142 1.082 0.953 0.918
Capacity kW 4.261
4.1
3.877 3.683 3.189 2.871
20ºC
Input kW. 1.224
1.14
1.129 1.082 0.976 0.941
Capacity kW 4.106 3.989 3.761 3.567 3.045 2.876
22ºC
Input kW. 1.259 1.212 1.153 1.106 1 0.836
6.7GCM18N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW
4.914
4.781
4.658
4.232
4.119
3.932
Sensitive capacity kW
3.851
3.686
3.620
3.431
3.315
3.131
21ºC D
15ºC W
Input kW.
1.335
1.515
1.623
1.782
1.865
2.006
Total capacity kW
5.495
5.255
4.973
4.722
4.614
4.398
Sensitive capacity kW
4.377
4.149
4.088
3.836
3.680
3.501
24ºC D
17ºC W
Input kW.
1.373
1.550
1.682
1.842
1.917
2.051
Total capacity kW
5.790
5.550
5.250
5.057
4.823
4.688
Sensitive capacity kW
4.559
4.370
4.248
3.968
3.851
3.629
27ºC D
19ºC W
Input kW.
1.416
1.572
1.720
1.880
1.968
2.139
Total capacity kW
6.323
6.150
5.768
5.402
5.252
4.970
Sensitive capacity kW
4.680
4.409
4.337
4.073
3.884
3.755
32ºC D
23ºC W
Input kW.
1.454
1.632
1.824
1.953
2.024
2.183
Page 20
19
6.8GHM18N
SUMMER
OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW
4.914
4.781
4.658
4.232
4.119
3.932
Sensitive capacity kW
3.851
3.686
3.620
3.431
3.315
3.131
21ºC D
15ºC W
Input kW.
1.335
1.515
1.623
1.782
1.865
2.006
Total capacity kW
5.495
5.255
4.973
4.722
4.614
4.398
Sensitive capacity kW
4.377
4.149
4.088
3.836
3.680
3.501
24ºC D
17ºC W
Input kW.
1.373
1.550
1.682
1.842
1.917
2.051
Total capacity kW
5.790
5.550
5.250
5.057
4.823
4.688
Sensitive capacity kW
4.559
4.370
4.248
3.968
3.851
3.629
27ºC D
19ºC W
Input kW.
1.416
1.572
1.720
1.880
1.968
2.139
Total capacity kW
6.323
6.150
5.768
5.402
5.252
4.970
Sensitive capacity kW
4.680
4.409
4.337
4.073
3.884
3.755
32ºC D
23ºC W
Input kW.
1.454
1.632
1.824
1.953
2.024
2.183
WINTER OUTDOOR CONDITIONS
Indoor
Conditions
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-
4ºC D
-6ºC W
-7ºC D
-8ºC W
Capacity kW
6.669 6.396 6.198
5.757 5.003 4.958
15ºC
Input kW.
1.712 1.659 1.589
1.553 1.343 1.218
Capacity kW
6.570 6.372 5.931
5.642 4.887 4.422
18ºC
Input kW.
1.782 1.730 1.713
1.623 1.430 1.377
Capacity kW
6.392 6.150 5.816
5.525 4.784 4.307
20ºC
Input kW.
1.836 1.780 1.694
1.623 1.464 1.412
Capacity kW
6.159 5.984 5.642
5.351 4.568 4.314
22ºC
Input kW.
1.889 1.818 1.730
1.659 1.500 1.254
Page 21
20
7. Schematic diagram and wiring diagram
7.1 Schematic diagram
1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
X14MR7
1M
A0
1
A1
2
A2
3
GND4SDA
5
SCL
6
WC
7
VCC
8
IC2 2 4C04
+5V
C2 104
R39
10K
R38
10K
SDA
SDA
SCL
SCL
C5
104
+5V
R412K
1
2
3
IC5 KIA7042
RST
RST
BUZ1
BUZZER1
R5
1K
+12V
BUZ
BUZ
E4
10uF/16V
R8
8.1K/1%
C6
104
R10 2K
D6
IN4148
D5
IN4148
+5V
1
2
CN2
T1_room
T1_room
T1_room
E5
10uF/16V
R9
8.1K/1%
C7
104
R11 2K
D8
IN4148
D7
IN4148
+5V
1
2
CN3
T2_I.pipe
T2_I.pipe
T2_I.pipe
CT1
0057h
D10
1N4148
R14
1.4K/1%
R6
1K/1%
R13
16KE6
10uF/16V
D9
1N4148
R12 2K
C8
104
+5V
Current
Current
Q2
9014
D11 1N4148
R15
12K
D12 1N4148
C9
104
ZERO
R16 12K
B
R17
12K
A
E7
10uF/16V
C10
102
R19 150
+5V
R18 10K
+5V
R20 1K
ZERO
C11
104
REC
REC
R215.1K
D13
IN4148
C12
103
+5V
1
2
3
CN4
FAN_BACK
+12V
FANSP_FEEDBACK
FANSP_FEEDBACK
REC
V
GND
REC1
RECEIVER_V
R2
8.06K
R3
5.1K
+5V
C14
1.2uF/450V
IC6 PC817
T1T2
G
TR1
BT131
L2
?
C15
333
R242K
+12V-a
R26
1K
E9
470uF/25V
R28
11K/2W
Z1
12V
D15
IN4007
R29
11K/2W
L1
N
R25 51/1W
FAN_IN '
FAN_IN
IN1
1
IN2
2
IN3
3
IN4
4
IN5
5
IN6
6
IN7
7
VSS8VDD
9
OUT7
10
OUT6
11
OUT5
12
OUT4
13
OUT3
14
OUT2
15
OUT1
16
IC7
UJN2003
STEP_I2
STEP_I1
STEP_I3
STEP_I4
STEP_I2
STEP_I1
STEP_I3
STEP_I4
+12V-a
C19
104
1
2
3
4
5
CN12
SWING
FAN_IN '
FAN_IN
BUZ '
BUZ '
COMP
COMP
COMP '
COMP '
R33
2K
Q5
9014
RY3
RELAY-SPST
+12V-a
D22
IN4148
R34
2K
Q6
9014
RY4
RELAY-SPST
+12V-a
D23
IN4148
R35
2K
Q7
9014
RY5
RELAY-SPST
+12V-a
D24
IN4148
C20
333
R36
51/1W
VALVE
VALVE
FAN_OUT
FAN_OUT
O2
O2
RY6
COMP
+12V-a
L(POWER_IN PORT)
LOAD_COMP
FUSE1
3.15A/250V
L1
L1
FRESH
LOAD_VALVE
LOAD_FAN OUT
LOAD_HEAT L
1
CN11
N
1
CN10
O2_L
1
2
CN13
ZR1
10D471K
C23
0.1uF/275VAC
1
2
CN15
TRANS_IN
t
PTC
82RM
Dsa
1
Dsb
2
Q0
3
Q1
4
Q2
5
Q3
6
GND
7
CP
8
MR9Q4
10
Q5
11
Q6
12
Q7
13
Vcc
14
IC8
74HC164
+5V
+5V
COM1
COM2
COM3
SEG3
SEG4
R60
10K
R59
10K
+5V
C24
104
SEG3
SEG4
Q8
9012Q99012
Q10
9012
R44
330
R45 330
R46 330
R47 330
R48 330
R49 330
R54 330
R55 330
R412KR422KR43
2K
LED6
LED7
LED8
+5V
abcde
f
g
h
com1
com2
DIS1
WT4021BG
COM1 COM2 COM3
LED9
1
2
3
4
5
CN6
FAN_IN
+12V-a
COM1
COM2
COM3
SEG3
SEG4
SCL
SDA
T1
T2
CURRENT
TC_SELECT
STEP_I1
STEP_I2
STEP_I3
STEP_I4
FAN_IN
BUZ
COMP
VALVE
FAN_OUT
ZERO
FANSP
REC
O2
FRESH
RST
X2
X1
C25
104
+5V
P01
6
P02
7
P03
8
P04
9
VSS1
10
P05
11
P50
12
P51
13
VDD0
2
P25
3
P52
14
P53
15
AVDD
16
AVREF
17
AN0
18
P10
25
P11
26
P30
27
P31
28
P32
29
P33
30
P20
31
VDD1
32
P21
33
P22
34
P23
35
P26
4
P00
5
VSS0
1
P24
36
VppIC
37
XT2
38
XT1
39
RESET
40
X2
41
X1
42
AN1
19
AN2
20
AN3
21
AVSS
24
AN5
23
AN4
22
IC4UPD789166
+5V
C26
104
JR5 10K
JR4
2K
+5V
1.JR1=2K JR1
2.
JR2 JR3
3.
JR4 JR5
4.JR6 JR7
C16
102
C17
102
R1
10K
R56 10K R57 10K R581 0K
+5V +5V
JR6
10K
JR7
10K
TC_SELECT
TC_SELECT
1
2
3
CN5
COM
+5V
R62
10K
LED5
R61 2K
SW1
JR1 2 K
JR3 10K
JR2
10K
C1
104
Vin
1
GND
2
Vout
3
IC3 7 805 +5V
E3
470uF/16V
E1
2200uF/25V
C4
104
D4
D3
D2
D1
Vin
1
GND
2
Vout
3
IC1 7 812 +12V-a
E2
1000uF/16V
C3
104
A
B
IN4007*4
C23
104
E10
2200uF/25V
D19
D18
D17
D16
Vin
1
GND
2
Vout
3
IC10 7812 +12V-b
E11
1000uF/16V
C24
104
C
D
IN4007*4
1
2
3
4
CN1
TRANS
GNDB
FRESH
R61
2K
Q11
9014
R62
1K
IC9
PC817
SW2
+12V-a +12V-b
R63
5.1K
Q12
9014
GNDB
+12V-b 1
2
CN16
1
4205-4207
V1.02004.02.18
SchemeFor UPD78F9177
Page 22
21
7.2 Wiring diagram
7.2.1 Cooling only
7.2.1.1GCM07N, GCM09N GCM12N
1
2(N)
Y&G
BLUE
S
RED
C
BLACK
R
BLACK
COMPRESSOR
CAPACI TOR
FAN
MOTOR
BLUE
RED
RED
RED
BLACK
Y&G
I NDOOR UNI T
OUTDOOR UNI T
Page 23
22
7.2.1.2GCM18N
I NDOOR UNI T
COMPRESSOR
CAPACITOR
COMPRESSOR
Y/G
WHI TE
S
BLUE
R
C
OVERLOAD
RELAY
RED
OUTDOOR UNI T
CAPACITOR
FAN
FAN
MOTOR
BLUE
RED
BLACK
Y&G
BLACK
BLACK
Page 24
23
7.2.2 Heating/cooling
7.2.2.1 GHM07N, GHM09N GHM12N
I NDOOR UNI T
OUTDOOR UNI T
Page 25
24
7.2.2.2GHM18N
I NDOOR UNI T
OUTDOOR UNI T
RED
BLACK
BLUE
BLACK
Y&G
COMPRESSOR
C
S
R
WHITE
BLUE
COMPRESSOR
CAPACITOR
FAN
MOTOR
RED
BLUE
FAN
CAPACITOR
BLACK
BLUE
4-WAY
Y/ G
OVERLOAD
RELAY
Page 26
25
8 Electronic function
8.1 Electric Control working environment
8.1.1 input voltage: 175~253V
8.1.2 Input power frequency:50Hz
8.1.3 Ambient temperature: -7°C~+43°C
8.1.4 Indoor fan normal working amp is less than 1A,
8.1.5 Outdoor fan. Normal working amp is less than 1.5A
8.1.6 Four-way valve normal working amp is less than 1A.
8.1.7 Swing motor: DC12V.
8.1.8 Compressor: single-phase power supply. Its normal working amp is less than 15A
8.2 Proper symbols and their meanings:
TA: Indoor ambient temperature
TE: Indoor evaporator temperature
TS: Setting temperature through the remote controller
I
3sec
: Self-protection amp of compressor, continue three seconds until turns off the compressor.
I
5MIN
: Self-protection amp of compressor, continue five minutes until turns off the compressor.
I
FAN
: Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind.
I
RESTORE
: Amp self-protection return value
TH
DEFROST
: High wind, defrosting temperature difference
TM
DEFROST
: Middle wind, defrosting temperature difference
TL
DEFROST
: Low wind, defrosting temperature difference
TE1: Anti-cold wind, from Fan Off to Breeze temperature
TE2: Anti-cold wind, from Breeze to Setting Fan Speed temperature
TE3: Anti-cold wind, from Setting Fan Speed to Breeze temperature
TE4: Anti-cold wind, from Breeze to Fan Off temperature
TE5: Evaporator low temperature protection entering temperature
TE6: Evaporator low temperature protection restoring temperature
TE7: Evaporator high temperature protection, compressor off temperature
TE8: Evaporator high temperature protection, fan off temperature
TE9: Evaporator high temperature protection, restoring temperature
8.3 Functions
Remote receiving
Testing and forced running
Position set for indoor unit wind vane
LED displaying and alarm
On or off Timer
Protection for the compressor
Current protection
High temperature protection of indoor heat exchanger at heating mode
Auto defrosting and heating recovery at heating mode
Anti cold air at heating mode
Anti frozen at cooling mode
Page 27
26
8.4 Protection
8.4.1 3 minutes delay at restart for compressor.
8.4.2 Sensor protection at open circuit and breaking disconnection
8.4.3 Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High Fan+300RPM)or
too low(lower than 400RPM), the unit stops and LED displays failure information and can’t returns to
normal operation automatically.
8.4.4 Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit stops and LED
displays failure information and can’t returns to normal operation automatically.
8.4.5 The current protection of the compressor
Condition Indoor fan Compressor Outdoor fan Remark
I< I
RESTORE
On On On
On On Off Heating mode I
RESTORE
<I< I
FAN
Low speed On On Cooling mode
I
FAN
<I<I
5MIN
Off Off After 5 Minutes
Current up
I
5MIN
<I< I
3SEC
Off Off After 3 Seconds
I
5MIN
<I< I
3SEC
Off Off After 3 Seconds
I
FAN
<I<I
5MIN
Off Off After 5 Minutes
On On Off Heating mode I
RESTORE
<I< I
FAN
Low speed On On Cooling mode
Current down
I< I
RESTORE
On On On
If compressor turns off for continuously 4 times due to current protection in 5 minutes from
Compressor On, the unit stops and LED displays failure information and can’t returns to normal
operation automatically.
8.5 Fan-only mode
Fan speed is high/mid/low/ Auto
8.6 Cooling mode
The 4-way valve is closed at cooling mode.
The action of the compressor and the outdoor fan:
Condition
T=Indoor Temp.
Ts=Setting Temp.
Compressor Outdoor fan
T> Ts+1 On On Room temp. up
T<Ts+1 Off Off
T> Ts On On Room temp. down
T<Ts Off Off
Auto fan at cooling mode:
Condition
T=Indoor Temp.-Setting Temp.
Indoor fan speed
T<4 Low
4<T<5 Med.
Room temp. up
T>5 High
T> 4 High
1<T<4 Med.
Room temp. down
T<1 Low
Page 28
27
Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )
Condition
Temp. Time
Compressor Outdoor fan
T> TE6 On On
Evaporator
Temp. up
T< TE6 >5 Minutes Off Off
T> TE5 On On
Evaporator
Temp. down
T< TE5 >5 Minutes Off Off
8.7 Dehumidifying mode
8.7.1 The 4-way valve is off in dehumidifying mode
8.7.2 Compressor and Indoor Fan actions in dehumidifying mode
NO Conditions Indoor Fan Compressor and Outdoor Fan
1 TA ≥ TS+2
LOW
BREEZE
ON 6minutes
OFF 4minutes
2 TS ≤TA<TS+2
LOW
BREEZE
ON 5minutes
OFF 5minutes
3 TA < TS
LOW
BREEZE
ON 4minutes
OFF 6minutes
Repeat on and off cycle.
Page 29
28
8.7.3 Low room temperature protection:
When room temperature decreases to below 10℃, compressor and outdoor fan will stop(indoor fan
is Breeze). Dehumidifying operation will be resumed when room temperature restores to over 13℃.
8.7.4 At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that
of cooling mode.
8.7.5 At dehumidifying mode, the action of fans of indoor is the same as that of air-only mode.
8.8 Heating mode
8.8.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode. 4-way valve
must delay 2 minutes compared with compressor if the compressor changed into non-heating mode
or turned off. 4-way valve doesn't delay in dehumidifying mode.
8.8.2 Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except
for the defrosting mode or the end of defrost.
8.8.3 Action of compressor and outdoor fan motor at heating mode: compressor must run for 7 minutes
after starting and then judge temperature. Meanwhile other protections are still valid.
Condition Compressor Outdoor fan
T> Ts+3* Off Off Room temp. up
T<Ts+3* On On
T< Ts+2* On On Room temp. down
T>Ts+2* Off Off
* This parameter can be changed from 0 to 3.
8.8.4 Indoor Fan actions at heating mode
Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind
function prevails.
Optional 1:
Anti-cold wind control function at heating mode
Condition
T= Indoor exchanger temp.
Indoor fan speed
T<TE1 Off
TE1<T<TE2 Breeze
Indoor exchanger temp. up
T>TE2 Setting fan speed
T> TE3 Setting fan speed
TE3<T<TE4 Breeze
Indoor exchanger temp. down
T<TE4 Off
Option 2:
Indoor fan changes breeze when compressor stop, after 127 second, indoor fan stop.
8.8.5 Auto wind at heating mode
Condition
T=Indoor Temp.-Setting Temp.
Indoor fan speed
T<2 High Room temp. up
T>2
Med.
Room temp. down T> 0 Med.
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T<0 High
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8.8.6 Indoor evaporator high-temperature protection at heating mode
Condition
T= Indoor exchanger temp.
Compressor Outdoor fan
T<TE8 On On
TE8<T<TE7 On Off
Indoor exchanger temp. up
T>TE7 Off Off
T>TE9 Off Off Indoor exchanger temp. down
T<TE9 On On
8.8.7. The louver opens to Standard Angle ANGLHEAT when power is on for the first time
8.9 Defrosting operation (Available for heating only).
8.9.1 Defrosting condition: Defrosting starts when either of the following ①&②:
①
A and B are satisfied:
A: The compressor keeps running for 40 minutes or more.
B: The temperature difference of evaporator and room temperature meets one of the following:
Temp. of evaporator---room temp.
Fan speed is high ≤TH
DEFROST
Fan speed is mid ≤ TM
DEFROST
Fan speed is low ≤TL
DEFROST
Breeze Meet only if it is Breeze
②
Calculate from the end of latest defrost, evaporator high temp. protection only closes outdoor fan
with the compressor still running. Add up to 90 minutes.
8.9.2 Defrosting time
If the temp. difference condition ① is satisfied for less than 40 minutes, this can be regarded as
severe frosting. The defrosting time is 10 minutes.
If the temp. difference condition ② is satisfied for more than 40 minutes, the defrosting time is 6
minutes.
If the temp. difference condition ① is satisfied out of 40 minutes, generally the defrosting time is 6
minutes, after three continuous 6-minute defrost, the fourth should be 10 minutes defrost. The
circulation is as following:
→
7.5-minute defrost → 7.5-minute defrost→7.5-minute defrost→10-minute defrost
→
8.9.3 Ending condition of defrosting
If one of following conditions is satisfied, end the defrost and turn into heating mode:
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A. The defrost time has reached to 7.5 or 10 minutes.
B. The compressor current has reached to I
DEFROST
or above, I
DEROST
differs in different models.
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8.9.4 Defrosting Actions:
8.10 Automatic operation mode
8.10.1 The air conditioner automatically selects one of the following operation modes: cooling, heating or
fan only according to the temp. difference between room temp. (TA) and set temp. (TS).
TA—TS Operation mode
TA—TS>2 Cooling
-1≤TA-TS≤+2 Fan-only
TA-TS<-1 Heating (air-only for cooling only type)
8.10.2 The indoor fan blows automatically in corresponding selected mode.
8.10.3 The motion of indoor fan’s blade should accord with the selected operation mode.
8.10.4 One mode should be carried out for at least 15 minutes once selected. If the compressor cannot
start for 15 minutes, reselect the operation mode according to the room temp. and set temp., or
reselect when the set temp. varies.
8.11 Forced cooling function
8.11.1 Select forced cooling function with the forced cooling button or the switch.
8.11.2 The compressor is unconditionally turned on, after 30 minutes cooling operation whose fan mode is
set as low, the A/C operates at the DRY mode with a set temp. of 24℃.
8.11.3 All protections of remote control cooling are available at forced cooling operation.
8.12 Forced Auto function
Select forced auto function with the forced auto button or the switch.
In forced auto status the A/C operates at remote control mode with a set temp. of 24℃.
8.13 Timer Function
8.14 Sleep mode
8.14.1 The sleep function is available at cooling, heating or auto mode.
Defrost 10or 6minutes
45S 25S
Compressor
4-way Valve
23S
40S
Outdoor Fan
Indoor Fan
10S
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8.14.2 Cooling:
The set temperature rise 1℃ per hour. Two hours later, the set temperature will maintain as a
constant and the fan speed is kept at low speed.
The total time is 7 hours, after 7 hours the unit stops.
8.14.3 Heating:
The set temperature decrease 1℃ per hour. Two hours later, the set temperature will maintain as a
constant and the air circulation is kept at low speed (Cold air proof function takes precedence over
all).
The total time is 7 hours, after 7 hours the unit stops.
8.14.4 Auto:
The economic running function operates in accordance with selected running mode by auto mode.
The total time is 7 hours, after 7 hours the unit stops.
8.15 Auto restart function
In case of a sudden power failure, this function automatically sets the unit to previous settings before
the power failure when power returns.
8.16 PLASMA ( optional):
Starts with indoor fan.
Note: Plasma and Anion can be use together.
8.17 Anion (optional)
Starts with indoor fan.
Note: Plasma and Anion can be use together.
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8.18 Models and Parameters
Model GCM-
07N GHM-
07N GCM-
09N GHM-
09N GCM-12N GHM-12N
I3SEC
7.5A 7
.5A 10.0A 10.0A 12.0A 12.0A
I5MIN 6.2A 6.2A 7.5A 7.5A 8
.5A 8
.5A
IFAN 5.2A 5.2A 5.5A 5.5A 7
.5A 7
.5A
IRESTORE
4.2A 4.2A 4.5A 4.5A 6.5A
6.5A
IDEFROST
3.2A
3.5A
5.0A
TE1 28 28 34
TE2 32 32 37
TE3 30 30 33
TE4 26 26 22
TE5 4 4 4 4 3 3
TE6 10 10 10 10 10 10
TE7 60 60 63
TE8 53 53 53
TE9 50 50 50
ANGLCOOL
200° 200° 200° 200° 155°
155°
ANGLHEAT
0° 0° 10°
ANGLOF
F 124° 124° 124° 124° 124° 124°
TH 17°C 17°C 20°C
TM 18°C 18°C 23°C
TL 19°C 19°C 26°C
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9.Troubleshooting
9.1 Display board
Thi s indicator illuminat es when the air condit ioner i s in AUTO oper ation.
AU TO indicato r
DE FROST indicator (F or Cooling & Heating models only)
Thi s indicator illuminat es when the air condit ioner start s defrosting automati cally or
when the warm air control fea ture is activated in heating oper ation.
1
22
3
4
5
1
22
3
4
Displays the te mperature settings when the air condit ioner is operational.
This indicator fl ashe s after power is on and illum inate s when the unit is in operation.
This indicator illuminat es when TIME R is set ON/ OFF.
OPE RATION in dicator
TIMER in dicat or
TEMPERATURE indicator
5
Signal receptor
9.2 For all heat pump model
r Extinguish
☆
Flash at 5Hz
Failure phenomenon Operation lamp Timer lamp
Indoor fan speed has been out of control for over 1 minute
☆
X
Indoor room temp. or evaporator sensor is open circuit or short circuit
☆
On
Over current protection of the compressor occurs 4 times X
☆
EEROM error On
☆
No over-zero signal
☆
☆
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9.3 Diagnostic Chart
9.3.1 After energizing, no indicator is lighted and the air conditioner can’t be operated.
Yes
Yes
No
No
Yes
Yes
No
9.3.2 Resetting phenomenon often occurs during operation. (That is automatically entering to the status when
power is on.)
The reason is that the instantaneous voltage of main chip is less than 4.5V. Check according to the following procedure:
Yes
No
Yes
No
After energizing, the air conditioner can’t be operated
Check if AC220V power supply outputs to Indoor PCB.
Check if AC220V exists at the primary coil of transformer.
Indoor PCB is defective
Check if AC14.5V exists at the secondary coil of transformer.
Take off the secondary plug of transformer, and then check if
AC14.5V exists at the secondary coil of transformer.
The transformer is defective. Indoor PCB is defective
Resetting phenomenon often occurs during operation.
After changing indoor fan motor, check if the failure releases
.
Indoor PCB is defective
Power supply circuit has problems.
After changing Indoor PCB, check if the failure releases
.
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9.3.3 Failure phenomenon
Failure phenomenon Operation lamp Timer lamp
Indoor fan speed has been out of control for over 1 minute
☆
X
Indoor room temp. or evaporator sensor is open circuit or short circuit
☆
On
Over current protection of the compressor occurs 4 times X
☆
EEROM error On
☆
No over-zero signal
☆
☆
r
Extinguish
☆☆☆☆
Flash at 5Hz
9.3.3.1 Operation lamp flashes and Timer lamp off.
9.3.3.2 Operation lamp flashes and Timer lamp on.
9.3.3.3 Operation lamp off and Timer lamp flashes
No Yes
Yes
No
9.3.3.4 Operation lamp on and Timer lamp flashes
EEROM error, indoor PCB is defective.
9.3.3.5 Operation lamp flashes, Timer lamp flashes .
This is alarm signal when the main chip can’t detect over-zero signal. When such failure occurs, the main
control board must have fault.
Operation lamp off and Timer lamp flashes
Indoor PCB is defective
Power supply fault Outdoor unit fault (such as the compressor)
The voltage of power supply is too low (less than 187V)?
After changing the main control board, check if the failure releases
.
Is connector connection good?
Is voltage being applied to the fan motor?
Fan motor is defective
Repair the connector
Indoor PCB is defective
No
Yes
Yes No
Is connection to connector good?
Replace the sensor
Repair connector
Yes
No
Yes
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10. Characteristic of temp. sensor
Temp. Resistance KΩ
Temp. Resistance KΩ
Temp. Resistance KΩ
-10 62.2756
17 14.6181
44 4.3874
-9 58.7079
18 13.918
45 4.2126
-8 56.3694
19 13.2631
46 4.0459
-7 52.2438
20 12.6431
47 3.8867
-6 49.3161
21 12.0561
48 3.7348
-5 46.5725
22 11.5
49 3.5896
-4 44
23 10.9731
50 3.451
-3 41.5878
24 10.4736
51 3.3185
-2 39.8239
25 10
52 3.1918
-1 37.1988
26 9.5507
53 3.0707
0 35.2024
27 9.1245
54 2.959
1 33.3269
28 8.7198
55 2.8442
2 31.5635
29 8.3357
56 2.7382
3 29.9058
30 7.9708
57 2.6368
4 28.3459
31 7.6241
58 2.5397
5 26.8778
32 7.2946
59 2.4468
6 25.4954
33 6.9814
60 2.3577
7 24.1932
34 6.6835
61 2.2725
8 22.5662
35 6.4002
62 2.1907
9 21.8094
36 6.1306
63 2.1124
10 20.7184
37 5.8736
64 2.0373
11 19.6891
38 5.6296
65 1.9653
12 18.7177
39 5.3969
66 1.8963
13 17.8005
40 5.1752
67 1.830
14 16.9341
41 4.9639
68 1.7665
15 16.1156
42 4.7625
69 1.7055
16 15.3418
43 4.5705
70 1.6469
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