42
Four-W
ay Ceiling Cassette System Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©
LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Cooling Capacity Tables
Table 20: LC187HV System Cooling Capacity Table.
Model No. /
Nominal Capacity
(Btu/h)
Outdoor
Air Temp.
(°F DB)
Indoor Air Temp. °F DB / °F WB
68 / 57
73 / 61
77 / 64
80 / 67
86 / 72
90 / 75
TC SHC
PI
TC SHC
PI
TC SHC
PI
TC SHC
PI
TC SHC
PI
TC SHC
PI
LC187HV /
18,000
5
17.83
14.43
0.50
18.94
15.24
0.68
20.04
15.69
0.74
20.84
15.07
0.75
22.26
15.19
0.75
23.37
15.48
0.75
10
17.80
14.53
0.52
18.91
15.35
0.70
20.02
15.80
0.76
20.81
15.18
0.77
22.23
15.30
0.77
23.33
15.59
0.77
15
17.78
14.64
0.53
18.88
15.46
0.72
19.99
15.92
0.78
20.78
15.29
0.79
22.20
15.42
0.79
23.30
15.71
0.79
20
17.75
14.74
0.54
18.86
15.57
0.74
19.96
16.03
0.80
20.75
15.40
0.81
22.16
15.53
0.81
23.27
15.82
0.81
25
17.73
14.85
0.56
18.83
15.68
0.76
19.93
16.14
0.82
20.72
15.50
0.83
22.13
15.63
0.83
23.23
15.93
0.83
30
17.70
14.95
0.57
18.80
15.79
0.78
19.90
16.26
0.84
20.69
15.61
0.85
22.10
15.74
0.85
23.20
16.04
0.85
35
17.68
15.05
0.59
18.77
15.90
0.80
19.87
16.37
0.86
20.66
15.72
0.87
22.07
15.85
0.88
23.17
16.15
0.87
40
17.65
15.16
0.60
18.75
16.01
0.81
19.84
16.48
0.88
20.63
15.83
0.90
22.04
15.96
0.90
23.13
16.26
0.89
45
17.63
15.26
0.61
18.72
16.12
0.83
19.81
16.59
0.90
20.60
15.94
0.92
22.00
16.07
0.92
23.10
16.37
0.92
50
17.60
15.36
0.63
18.69
16.23
0.85
19.79
16.70
0.92
20.57
16.04
0.94
21.97
16.18
0.94
23.06
16.48
0.94
55
17.57
15.46
0.64
18.67
16.33
0.87
19.76
16.81
0.94
20.55
16.15
0.96
21.94
16.28
0.96
23.03
16.59
0.96
60
17.55
15.56
0.66
18.64
16.44
0.89
19.73
16.92
0.96
20.52
16.25
0.98
21.91
16.39
0.98
23.00
16.70
0.98
65
17.52
15.66
0.67
18.61
16.55
0.91
19.70
17.03
0.98
20.49
16.36
1.00
21.88
16.50
1.00
22.96
16.81
1.00
70
17.50
15.77
0.69
18.58
16.65
0.93
19.67
17.14
1.01
20.46
16.47
1.02
21.84
16.60
1.02
22.93
16.92
1.02
75
17.08
15.51
0.73
18.16
16.40
0.96
19.24
16.90
1.03
20.03
16.25
1.05
21.41
16.40
1.06
22.50
16.73
1.07
80
16.66
15.24
0.77
17.74
16.14
0.99
18.82
16.66
1.06
19.60
16.02
1.08
20.98
16.20
1.10
22.06
16.53
1.11
85
16.24
14.96
0.88
17.32
15.87
1.07
18.40
16.40
1.14
19.17
15.78
1.16
20.55
15.98
1.18
21.63
16.32
1.20
90
15.82
14.68
0.99
16.90
15.59
1.16
17.97
16.13
1.21
18.75
15.54
1.23
20.12
15.75
1.26
21.20
16.11
1.28
95
15.37
14.53
1.09
16.44
15.45
1.24
17.51
16.01
1.28
18.00 15.20 1.26
19.65
15.67
1.32
20.72
16.04
1.35
100
14.99
14.14
1.14
16.06
15.06
1.26
17.13
15.63
1.29
17.77
14.96
1.28
19.28
15.33
1.32
20.35
15.71
1.35
105
14.62
13.75
1.20
15.69
14.68
1.28
16.76
15.25
1.30
17.53
14.73
1.30
18.90
15.00
1.32
19.97
15.38
1.35
110
14.24
13.28
1.16
15.32
14.20
1.21
16.39
14.77
1.21
17.16
14.29
1.21
18.53
14.57
1.22
19.60
14.96
1.24
115
13.87
12.88
1.05
14.94
13.80
1.06
16.01
14.38
1.03
16.79
13.93
1.02
18.15
14.22
1.02
19.22
14.62
1.04
118
13.10
12.28
0.93
14.13
13.17
0.91
15.16
13.74
0.87
15.90
13.31
0.85
17.21
13.61
0.85
18.24
14.00
0.87
122
12.84
12.07
0.89
13.86
12.95
0.86
14.87
13.52
0.82
15.60
13.10
0.80
16.90
13.40
0.79
17.91
13.79
0.81
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
PI = Power input (KW). Power input (KW) includes compressor and fan(s).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor
unit. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and 67ºF
wet bulb (WB), and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
The shaded table rows indicate reference data. When operating at this temperature, these values can
be different if the system is not running consistently.