SIRAIR GS-UNC18ID-INV/1P Installation and operating instructions

Engineered for comfort
Engineered for comfort
Underceiling
Aircondtioner
Operation Manual & Installation
Thank you for purchasing our product, please keep and read this manual carefully before
you install.
Model
GS-UNC18ID-INV/1P
GS-UNC24ID-INV/1P
GS-UNC36IDINV/1P
GS-UNC48ID-INV/3P
GS-UNC60ID-INV/3P

Floor & Ceiling
1.Features........................................................................................ 82
2.Specifications................................................................................ 85
3.Dimensions.................................................................................... 89
4.Service Space ............................................................................... 90
5.Wiring Diagrams............................................................................ 91
6.Capacity Table............................................................................... 95
7.Electric Characteristics.................................................................. 99
8. Exploded View............................................................................ 100
9.Accessories................................................................................. 106
10.The Specification of Power........................................................ 107
11.Field Wiring................................................................................ 108
12.Troubleshooting......................................................................... 108
Technical Manual

1 Features
1. Flexible installation, ceiling suspended and floor standing.
2. Adopting centrifugal fans, higher ESP and longer air flow distance.
3. Two way auto-swing function, built-in two louver motor, vertical and horizontal air-flow
adjustment.
Technical Manual

4. Washable air filter
5. LED display optional.
6. New upper and lower buckle type wheel case, the upper plastic wheel case can be
removed alone, which is convenient adjust the wheel motor.
7. Water pump optional, pumping head is up to 1200mm.
8. Adopting waterproof plastic film on water collector, avoiding water leakage.
9. Self-diagnostic function and multi protection; Auto-restart function.
Technical Manual

10.Standard for wireless controller; option for wired controller
Standard Optional
Technical Manual

2 Specifications
Model
GS-UNC18ID-INV/1P
GS-UNC24ID-INV/1P
Indoor unit code
821039700060
821023700035
Indoor power supply
V/Ph/Hz
220~240/1/50
220~240/1/50
Cooling
Capacity
Btu/h
18000
24000
kW
5.3
7
Power input
kW
1.7
2.26
Ratedcurrent
A
7.8
10.6
EER
W/W
3.1
3.1
Heating
Capacity
Btu/h
18000
24000
kW
5.3
7
Power input
kW
1.51
2
Rated current
A
6.8
9.4
COP
W/W
3.5
3.5
Indoor fan motor
Model
YSK110-59LD-4P17
YSK110-59LD-4P17
Power Output
W
59
59
Capacitor
μF
3
3
Speed(Hi/Me/Lo)
r/min
1310/1139/1016
1310/1139/1016
Indoor coil
Number of rows
3
3
Tube pitch(a)x row pitch(b)
mm
21×13.37
21x13.37
Fin spacing
mm
1.4
1.4
Fin type
Hydrophilic
Hydrophilic
Tube outside dia. and type
mm
Ф7
Ф7
inner grooved
inner grooved
Coil length x height x width
mm
680×252*40.11
680×252×40.11
Number of circuits
4
4
Indoor air flow(High speed)
m3/h
1100
1200
Indoor noise level
dB(A)
49~53
48~52
Indoor unit
Dimension(W*H*D)
mm
1050×675×235
1050×675×235
Packing(W*H*D)
mm
1130×765×330
1130×765×330
Net/Gross weight
kg
26.5/31
26.5/31
Max pressure
MPa
4.2
4.2
Refrigerant type
R410A
R410A
Refrigerant piping
Liquid side/Gas side
mm
6.35/12.7
9.52/15.88
Drainage pipe
mm
DN25
DN25
Standard controller
Wireless controller
Operation temp.
°C
16～32
16～32
Technical Manual

Model
GS-UNC36ID-
INV/1P
GS-UNC48ID-INV/3P
Indoor unit code
821039700053
821039700052
Indoor power supply
V/Ph/Hz
220~240/1/50
220~240/1/50
Cooling
Capacity
Btu/h
36000
48000
kW
10.5
14
Power input
kW
3.4
4.5
Ratedcurrent
A
15
18
EER
W/W
2.6
2.5
Heating
Capacity
Btu/h
36000
48000
kW
10.5
14
Power input
kW
2.8
4
Rated current
A
12.5
17.5
COP
W/W
3.4
2.8
Indoor fan motor
Model
YSK110-180LD-4P2
2*YSK110-59LD-4P17
Power Output
W
180
2*59
Capacitor
μF
5
2*3
Speed(Hi/Me/Lo)
r/min
1310/1210/1110
1310/1139/1016
Indoor coil
Number of rows
3
3
Tube pitch(a)x row pitch(b)
mm
21×13.37
21*13.37
Fin spacing
mm
1.4
1.4
Fin type
Hydrophilic
Hydrophilic
Tube outside dia. and type
mm
Ф7
Ф7
inner grooved
Inner grooved
Coil length x height x width
mm
948×252×40.11
1300×252×40.11
Number of circuits
4
5
Indoor air flow(High speed)
m3/h
1600
2100
Indoor noise level
dB(A)
51~57
46~55
Indoor unit
Dimension(W*H*D)
mm
1250×675×235
1670×675×235
Packing(W*H*D)
mm
1380×765×325
1750×770×325
Net/Gross weight
kg
32/37
40/46
Max pressure
MPa
4.2
4.2
Refrigerant type
R410A
R410A
Refrigerant
piping
Liquid side/Gas side
mm
9.52/15.88
9.52/15.88
Drainage pipe
mm
DN25
DN25
Standard controller
Wireless controller
Operation temp.
°C
16～32
16～32
Technical Manual

Model
GS-UNC60ID-INV/3P
Indoor power supply
V/Ph/Hz
220~240V/1Ph/50Hz
Cooling
Capacity
KW
16
Power input
W
280
Current input
A
1.15
EER
W/W
2.91
Heating
Capacity
KW
17.6
Input
W
280
Rated current
A
1.15
COP
W/W
3.31
Energy rate
Cooling
C
Energy rate
Heating
C
Max. power input
W
300
Max. current input
A
1.35
Indoor fan motor
Model
YSK110-85LD-4P2
Brand
YONGAN/KANGBAO
Power output
W
85
Capacitor
μF
5
Speed
r/min
1560/1430/1300
Insulation class
B
Indoor coil
Number of rows
4
Tube pitch(a) x row pitch(b)
mm
22x19.1
Fin spacing
mm
1.7
Fin type
Hydrophilic
Tube outside dia. and type
mm
Ф7.94
inner grooved
Coil length x height x width
mm
1382x242x76.2
Number of circuits
4
Indoor air flow (High speed)
m3/h
2000
Indoor noise level
power level
dB(A)
52
pressure level
45-52
Indoor unit
Dimension (W*H*D)
Body(mm)
1670x680x244
Packing (W*H*D)
Body(mm)
1750x765x330
Net/Gross weight
Body(Kg)
49/55.5
Max pressure
MPa
4.5
Refrigerant type
R410A
Refrigerant piping
Liquid side/Gas side
mm
Φ9.52/Φ15.88
Drainage pipe
mm
DN25
Standard controller
Standard for remote controller(wired
controller for option)
Operation temp
°C
16～32
Ambient temp
cooling
°C
-15～50
heating
°C
-15～30
Technical Manual

Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 5m (horizontal)
2.Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 5m (horizontal)
3.Actual noise level may differ, depending on the room structure, etc, since these noise values are from an
anechoic room.
Technical Manual

3 Dimensions
Technical Manual

4 Service Space
Technical Manual

5 Wiring Diagrams
5.1 GS-UNC18ID-INV/1P,GS-UNC24ID-INV/1P
Technical Manual

5.2GS-UNC36ID-INV/1P
Technical Manual

5.3GS-UNC48ID-INV/3P
Technical Manual

5.4 GS-UNC60ID-INV/3P-C
1
OFF ON
1
OFF ON That DIP to Digital
That DIP to ON
NOTE:
SW2
12345678
OFF ON
N1L1 S
Connect to the outdoor
Receive and display light board
SW2 Digital tube
LED
NO.4 OFF
ON
OFF
ON 4
4
SW2 No power-down memory
power-down memory
NO.5 OFF
ON
OFF
ON 5
5
SW2 NO.6
Heating temperature
6¡ æ 2¡ æ
6
OFF ON OFF ON
6
SW2 NO.7
Anti-cold wind off the fan
15¡ æ 24¡ æ
7
OFF
ON
OFF
ON
7
SW2 NO.8 Heating fan stop time
4MIN 8MIN
8
OFF ON OFF ON
8
compensation
temperature selection bit
YE/GN
CN26
REMO_CTRL
Duct display
Receive and display lightboard
10
0
F
1
SW1
SW3
12 3 4
OFF
ON
SW2
1 2 3 4 5 6 7 8
OFF
ON
WATER
SWITCH
CN18
Water-SW
outlet
Middle
Ambient
sensor
sensor
sensor
temperature
T2B
T2
T1
PT1
PT2
PT3
Water
Pump
Controller
CN27
Wire control
SWING
EXV
SWING
L
N
ALARM PUMP
H M L N
AC
FAN
S
CN4
DEBUG CN22
OUT
SWING
OUT
IN
IN SING EXV
OUT SING
CN19
CN20
CN18 CN16
AC
FAN
RD BK BL
RD OR
RD OR
SW2 NO.1,2 Indoor models
Indoor models Select bits
OFF
ON Floor&Ceiling Unit
12
HP MODEL SW1
4
36K
7
5
ERP48K
9
6
ERP60K
A
POWER 105 140 160
Technical Manual

6. Capacity Table
Cooling
6.1 GS-UNC18ID-INV/1P
MODEL
GS-UNC18ID-INV/1P
COOLING
OUTDOOR TEMPERATURE DRY
Indoor Conditions
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
49ºC
21ºC D
15ºC W
Total capacity Kw
5.09
5.06
5.03
4.99
4.95
4.91
4.88
Input kW.
1.51
1.52
1.54
1.56
1.61
1.67
1.72
24ºC D
17ºC W
Total capacity kW
5.25
5.22
5.18
5.15
5.10
5.06
5.03
Input kW.
1.53
1.54
1.56
1.58
1.64
1.69
1.74
27ºC D
19ºC W
Total capacity kW
5.41
5.38
5.34
5.30
5.26
5.22
5.18
Input kW.
1.55
1.56
1.58
1.60
1.66
1.72
1.76
29ºC D
21ºC W
Total capacity kW
5.48
5.44
5.40
5.36
5.32
5.28
5.24
Input kW.
1.57
1.59
1.61
1.63
1.68
1.74
1.79
32ºC D
23ºC W
Total capacity kW
5.58
5.55
5.51
5.47
5.42
5.38
5.34
Input kW.
1.58
1.59
1.61
1.63
1.69
1.75
1.80
6.2 GS-UNC24ID-INV/1P
MODEL
GS-UNC24ID-INV/1P
COOLING
OUTDOOR TEMPERATURE DRY
Indoor Conditions
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
49ºC
21ºC DB
15ºC WB
Total capacity kW
6.82
6.78
6.73
6.68
6.63
6.58
6.53
Input kW.
2.03
2.05
2.07
2.10
2.17
2.25
2.31
24ºC DB
17ºC WB
Total capacity kW
7.04
7.00
6.95
6.89
6.84
6.78
6.74
Input kW.
2.05
2.07
2.10
2.12
2.20
2.28
2.34
27ºC DB
19ºC WB
Total capacity kW
7.25
7.21
7.15
7.00
7.04
6.99
6.94
Input kW.
2.08
2.10
2.12
2.15
2.23
2.31
2.37
29ºC D
21ºC W
Total capacity kW
7.34
7.29
7.24
7.19
7.13
7.07
7.03
Input kW.
2.11
2.13
2.16
2.19
2.26
2.34
2.41
32ºC DB
23ºC WB
Total capacity kW
7.48
7.43
7.38
7.32
7.26
7.21
7.16
Input kW.
2.121
2.14
2.17
2.19
2.27
2.35
2.42
6.3 GS-UNC36ID-INV/1P
MODEL
GS-UNC36ID-INV/1P
COOLING
OUTDOOR TEMPERATURE DRY
Indoor Conditions
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
49ºC
21ºC DB
15ºC WB
Total capacity kW
10.09
10.03
9.96
9.88
9.80
9.73
9.66
Input kW.
3.09
3.12
3.15
3.19
3.31
3.42
3.52
24ºC DB
17ºC WB
Total capacity kW
10.41
10.35
10.27
10.19
10.11
10.03
9.97
Input kW.
3.13
3.16
3.19
3.23
3.35
3.47
3.57
27ºC DB
19ºC WB
Total capacity kW
10.72
10.66
10.58
10.50
10.42
10.33
10.27
Input kW.
3.17
3.20
3.24
3.28
3.39
3.51
3.61
29ºC D
21ºC W
Total capacity kW
10.85
10.79
10.71
10.63
10.54
10.46
10.39
Input kW.
3.22
3.25
3.29
3.33
3.45
3.57
3.67
32ºC DB
23ºC WB
Total capacity kW
11.06
10.99
10.91
10.83
10.74
10.66
10.59
Input kW.
3.23
3.26
3.30
3.34
3.46
3.59
3.69
6.4 GS-UNC48ID-INV/3P
Technical Manual

MODEL
GS-UNC48ID-INV/3P
COOLING
OUTDOOR TEMPERATURE DRY
Indoor Conditions
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
49ºC
21ºC D
15ºC W
Total capacity Kw
13.45
13.37
13.29
13.18
13.08
12.97
12.89
Input kW.
4.59
4.62
4.68
4.74
4.89
5.07
5.22
24ºC D
17ºC W
Total capacity kW
13.87
13.79
13.68
13.60
13.47
13.37
13.29
Input kW.
4.65
4.68
4.74
4.80
4.98
5.13
5.29
27ºC D
19ºC W
Total capacity kW
14.29
14.21
14.11
14
13.89
13.79
13.68
Input kW.
4.71
4.74
4.80
4.86
5.04
5.22
5.35
29ºC D
21ºC W
Total capacity kW
14.48
14.37
14.26
14.16
14.05
13.95
13.84
Input kW.
4.77
4.83
4.89
4.95
5.10
5.29
5.44
32ºC D
23ºC W
Total capacity kW
14.74
14.66
14.55
14.45
14.32
14.21
14.11
Input kW.
4.80
4.83
4.89
4.95
5.13
5.32
5.47
6.5 GS-UNC60ID-INV/3P
MODEL
GS-UNC60ID-INV/3P
COOLING
OUTDOOR TEMPERATURE DRY
Indoor Conditions
21ºC
25ºC
30ºC
35ºC
40ºC
45ºC
49ºC
21ºC D
15ºC W
Total capacity Kw
15.37
15.28
15.18
15.06
14.94
14.82
14.73
Input kW.
5.12
5.16
5.23
5.29
5.46
5.67
5.84
24ºC D
17ºC W
Total capacity kW
15.85
15.76
15.64
15.55
15.40
15.28
15.18
Input kW.
5.19
5.23
5.29
5.36
5.57
5.74
5.91
27ºC D
19ºC W
Total capacity kW
16.33
16.24
16.12
16
15.88
15.76
15.64
Input kW.
5.26
5.29
5.36
5.43
5.63
5.84
5.97
29ºC D
21ºC W
Total capacity kW
16.54
16.42
16.30
16.18
16.06
15.94
15.82
Input kW.
5.33
5.40
5.46
5.53
5.70
5.91
6.07
32ºC D
23ºC W
Total capacity kW
16.85
16.75
16.63
16.51
16.36
16.24
16.12
Input kW.
5.36
5.40
5.46
5.53
5.74
5.94
6.11
Technical Manual

Heating
6.6 GS-UNC18ID-INV/1P
MODEL
GS-UNC18ID-INV/1P
HEATING
OUTDOOR CONDITIONS
Indoor Conditions
24ºC D
18ºC W
15ºC D
14ºC W
7ºC D
6ºC W
3ºC D
2ºC W
-5ºC D
-6ºC W
-7ºC D
-8ºC W
-14ºC D
-15ºC W
15ºC
Capacity kW
6.05
6.00
5.98
5.81
5.55
5.47
4.86
Input kW.
1.51
1.37
1.34
1.32
1.29
1.28
1.22
18ºC
Capacity kW
5.99
5.96
5.94
5.77
5.52
5.43
4.90
Input kW.
1.54
1.40
1.36
1.34
1.31
1.30
1.24
20ºC
Capacity kW
5.96
5.92
5.90
5.73
5.48
5.40
4.86
Input kW.
1.56
1.42
1.39
1.37
1.34
1.33
1.27
22ºC
Capacity kW
5.93
5.88
5.86
5.69
5.44
5.36
4.83
Input kW.
1.59
1.45
1.41
1.39
1.36
1.35
1.29
27ºC
Capacity kW
5.80
5.84
5.82
5.65
5.40
5.32
4.79
Input kW.
1.62
1.47
1.43
1.41
1.39
1.38
1.31
6.7 GS-UNC24ID-INV/1P
MODEL
GS-UNC24ID-INV/1P
HEATING
OUTDOOR CONDITIONS
Indoor Conditions
24ºC D
18ºC W
15ºC D
14ºC W
7ºC D
6ºC W
3ºC D
2ºC W
-5ºC D
-6ºC W
-7ºC D
-8ºC W
-14ºC D
-15ºC W
15ºC
Capacity kW
7.95
7.83
7.81
7.58
7.25
7.14
6.43
Input kW.
2.10
1.99
1.94
1.91
1.87
1.86
1.77
18ºC
Capacity kW
7.90
7.78
7.75
7.53
7.20
7.09
6.39
Input kW.
2.13
2.03
1.97
1.94
1.90
1.89
1.80
20ºC
Capacity kW
7.86
7.73
7.70
7.47
7.15
7.04
6.35
Input kW.
2.19
2.06
2.00
1.98
1.94
1.92
1.83
22ºC
Capacity kW
7.82
7.67
7.65
7.42
7.10
6.99
6.30
Input kW.
2.23
2.10
2.04
2.01
1.97
1.96
1.86
27ºC
Capacity kW
7.73
7.62
7.59
7.37
7.05
6.94
6.26
Input kW.
2.28
2.14
2.08
2.05
2.01
1.99
1.90
6.8 GS-UNC36ID-INV/1P
MODEL
GS-UNC36ID-INV/1P
HEATING
OUTDOOR CONDITIONS
Indoor Conditions
24ºC D
18ºC W
15ºC D
14ºC W
7ºC D
6ºC W
3ºC D
2ºC W
-5ºC D
-6ºC W
-7ºC D
-8ºC W
-14ºC D
-15ºC W
15ºC
Capacity kW
12.11
11.70
11.66
11.32
10.83
10.67
9.61
Input kW.
3.24
3.04
2.95
2.91
2.85
2.83
2.70
18ºC
Capacity kW
12.08
11.62
11.58
11.24
10.75
10.59
9.54
Input kW.
3.28
3.09
3.01
2.97
2.90
2.88
2.75
20ºC
Capacity kW
12.04
11.54
11.50
11.16
10.68
10.52
9.48
Input kW.
3.33
3.15
3.05
3.02
2.96
2.94
2.80
22ºC
Capacity kW
12.00
11.46
11.42
11.09
10.60
10.44
9.41
Input kW.
3.39
3.20
3.11
3.07
3.01
2.99
2.84
27ºC
Capacity kW
11.73
11.38
11.34
11.01
10.53
10.37
9.35
Input kW.
3.48
3.26
3.17
3.13
3.06
3.04
2.90
Technical Manual

6.9 GS-UNC48ID-INV/3P
MODEL
GS-UNC48ID-INV/3P
HEATING
OUTDOOR CONDITIONS
Indoor Conditions
24ºC D
18ºC W
15ºC D
14ºC W
7ºC D
6ºC W
3ºC D
2ºC W
-5ºC D
-6ºC W
-7ºC D
-8ºC W
-14ºC D
-15ºC W
15ºC
Capacity kW
15.59
15.46
15.41
14.97
14.30
14.09
12.52
Input kW.
4.68
4.25
4.15
4.09
4.00
3.97
3.78
18ºC
Capacity kW
15.43
15.35
15.30
14.87
14.22
13.99
12.62
Input kW.
4.78
4.34
4.22
4.15
4.06
4.03
3.84
20ºC
Capacity kW
15.35
15.25
15.2
14.76
14.12
13.91
12.52
Input kW.
4.84
4.40
4.31
4.25
4.15
4.12
3.94
22ºC
Capacity kW
15.28
15.15
15.10
14.66
14.01
13.81
12.44
Input kW.
4.93
4.50
4.37
4.31
4.22
4.19
4.00
27ºC
Capacity kW
14.94
15.05
14.99
14.56
13.91
13.71
12.34
Input kW.
5.02
4.56
4.43
4.37
4.31
4.28
4.06
6.10 GS-UNC60ID-INV/3P
MODEL
GS-UNC60ID-INV/3P
HEATING
OUTDOOR CONDITIONS
Indoor Conditions
24ºC D
18ºC W
15ºC D
14ºC W
7ºC D
6ºC W
3ºC D
2ºC W
-5ºC D
-6ºC W
-7ºC D
-8ºC W
-14ºC D
-15ºC W
15ºC
Capacity kW
18.05
17.90
17.84
17.33
16.56
16.32
14.50
Input kW.
5.50
4.99
4.88
4.81
4.70
4.66
4.44
18ºC
Capacity kW
17.87
17.78
17.72
17.21
16.47
16.20
14.62
Input kW.
5.61
5.10
4.95
4.88
4.77
4.73
4.51
20ºC
Capacity kW
17.78
17.66
17.6
17.09
16.35
16.11
14.50
Input kW.
5.68
5.17
5.06
4.99
4.88
4.84
4.62
22ºC
Capacity kW
17.69
17.54
17.48
16.97
16.23
15.99
14.41
Input kW.
5.79
5.28
5.13
5.06
4.95
4.91
4.70
27ºC
Capacity kW
17.30
17.42
17.36
16.85
16.11
15.87
14.29
Input kW.
5.90
5.35
5.21
5.13
5.06
5.02
4.77
Technical Manual

7 Electric Characteristics
Model
Indoor Units
Indoor Fan Motor
Hz
Voltage
Min.
Max.
kW
GS-UNC18ID-INV/1P
50
220-240V
198
254
0.059
GS-UNC24ID-INV/1P
50
220-240V
198
254
0.059
GS-UNC36ID-INV/1P
50
220-240V
198
254
0.180
GS-UNC48ID-INV/3P
50
220-240V
198
254
0.118
GS-UNC60ID-INV/3P
50
220-240V
198
254
0.17
Technical Manual