Combination
Capacity Index
(kBtu/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
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
Ducted Indoor
Units
59 (110%)
14
50.79
3.29
53.94
3.41
57.10
3.53
59.38
3.57
63.41
3.64
66.56
3.71
20
50.75
3.33
53.90
3.45
57.05
3.58
59.33
3.62
63.36
3.69
66.51
3.76
25
50.71
3.38
53.86
3.50
57.01
3.63
59.29
3.67
63.31
3.74
66.46
3.82
30
50.67
3.43
53.82
3.55
56.97
3.68
59.24
3.72
63.26
3.79
66.41
3.87
35
50.63
3.47
53.78
3.60
56.92
3.73
59.19
3.78
63.21
3.85
66.36
3.92
40
50.60
3.52
53.74
3.65
56.88
3.78
59.15
3.83
63.16
3.90
66.31
3.98
45
50.56
3.57
53.70
3.70
56.84
3.83
59.10
3.88
63.12
3.95
66.26
4.03
50
50.52
3.62
53.66
3.75
56.79
3.88
59.06
3.93
63.07
4.00
66.21
4.08
55
50.48
3.66
53.61
3.80
56.75
3.94
59.01
3.98
63.02
4.06
66.15
4.14
60
50.44
3.71
53.57
3.85
56.71
3.99
58.97
4.03
62.97
4.11
66.10
4.19
65
50.40
3.76
53.53
3.89
56.66
4.04
58.92
4.08
62.92
4.16
66.05
4.24
70
50.36
3.80
53.49
3.94
56.62
4.09
58.88
4.13
62.87
4.21
66.00
4.30
75
49.15
4.01
52.27
4.16
55.39
4.31
57.64
4.36
61.63
4.44
64.75
4.53
80
47.94
4.22
51.05
4.37
54.16
4.53
56.41
4.58
60.39
4.67
63.50
4.76
85
46.74
4.42
49.84
4.58
52.95
4.75
55.19
4.80
59.16
4.89
62.26
4.99
90
45.54
4.63
48.63
4.79
51.73
4.97
53.97
5.03
57.92
5.12
61.02
5.22
95
44.23
4.83
47.31
5.01
50.40
5.19
51.81
5.25
56.56
5.35
59.64
5.46
100
43.16
5.04
46.24
5.22
49.32
5.41
51.14
5.47
55.48
5.58
58.56
5.69
105
42.08
5.24
45.16
5.43
48.24
5.63
50.47
5.70
54.41
5.80
57.49
5.92
110
41.00
5.45
44.08
5.65
47.16
5.85
49.39
5.92
53.33
6.03
56.41
6.15
115
39.92
5.65
43.01
5.86
46.09
6.07
48.31
6.14
52.25
6.26
55.33
6.38
118
39.28
5.78
42.36
5.99
45.44
6.20
47.67
6.28
51.60
6.39
54.69
6.52
122
39.06
5.94
42.14
6.16
45.23
6.38
47.45
6.45
51.39
6.58
54.47
6.71
Ducted Indoor
Units
54 (100%)
14
50.00
3.19
53.10
3.31
56.21
3.43
58.45
3.47
62.41
3.53
65.52
3.60
20
49.96
3.24
53.06
3.36
56.16
3.48
58.40
3.52
62.37
3.58
65.47
3.66
25
49.92
3.28
53.02
3.40
56.12
3.53
58.36
3.57
62.32
3.63
65.42
3.71
30
49.88
3.33
52.98
3.45
56.08
3.58
58.31
3.62
62.27
3.69
65.37
3.76
35
49.84
3.38
52.94
3.50
56.03
3.63
58.27
3.67
62.22
3.74
65.32
3.81
40
49.80
3.42
52.90
3.55
55.99
3.68
58.22
3.72
62.18
3.79
65.27
3.86
45
49.77
3.47
52.86
3.59
55.95
3.72
58.18
3.77
62.13
3.84
65.22
3.92
50
49.73
3.51
52.82
3.64
55.90
3.77
58.14
3.82
62.08
3.89
65.17
3.97
55
49.69
3.56
52.78
3.69
55.86
3.82
58.09
3.87
62.03
3.94
65.12
4.02
60
49.65
3.60
52.74
3.74
55.82
3.87
58.05
3.92
61.99
3.99
65.07
4.07
65
49.61
3.65
52.70
3.78
55.78
3.92
58.00
3.97
61.94
4.04
65.02
4.12
70
49.58
3.70
52.65
3.83
55.73
3.97
57.96
4.02
61.89
4.09
64.97
4.17
75
48.38
3.90
51.45
4.04
54.53
4.19
56.74
4.23
60.67
4.31
63.74
4.40
80
47.19
4.09
50.25
4.24
53.32
4.40
55.53
4.45
59.44
4.53
62.51
4.62
85
46.01
4.29
49.06
4.45
52.12
4.61
54.33
4.67
58.23
4.75
61.29
4.85
90
44.82
4.49
47.87
4.66
50.92
4.83
53.12
4.88
57.02
4.97
60.07
5.07
95
43.54
4.69
46.57
4.86
49.61
5.04
51.00
5.10
55.68
5.20
58.71
5.30
100
42.48
4.89
45.51
5.07
48.55
5.26
50.34
5.32
54.61
5.42
57.65
5.53
105
41.42
5.09
44.45
5.28
47.49
5.47
49.68
5.53
53.55
5.64
56.59
5.75
110
40.36
5.29
43.39
5.48
46.43
5.68
48.62
5.75
52.49
5.86
55.53
5.98
115
39.30
5.49
42.33
5.69
45.37
5.90
47.56
5.97
51.43
6.08
54.47
6.20
118
38.66
5.61
41.70
5.82
44.73
6.03
46.92
6.10
50.80
6.21
53.83
6.34
122
38.45
5.77
41.49
5.98
44.52
6.20
46.71
6.27
50.59
6.39
53.62
6.52
PERFORMANCE DATA
Cooling Capacity Tables
Table 292:
LMU540HV Cooling Capacity Table — Ducted Indoor Units (continued).
TC = Total Capacity (kBtu/h).
PI = Power Input (kW).
Nominal capacity as rated: 0 ft. above sea level with Piping Length as Main Pipe (16.4 ft.) + Branch
pipe (98.4 ft.) = 115 ft.
0 ft. level difference between outdoor and indoor units.
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 columns and rows indicate reference data. When operating at this temperature, these
values can be different if the system is not running consistently.
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.
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Multi F and Multi F MAX Heat Pump System Engineering Manual
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