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
Mixed Indoor
Units
32 (60%)
14
30.07
1.56
31.93
1.62
33.80
1.68
35.15
1.70
37.53
1.73
39.40
1.77
20
30.04
1.59
31.91
1.64
33.77
1.70
35.12
1.72
37.51
1.76
39.37
1.79
25
30.02
1.61
31.88
1.67
33.75
1.73
35.10
1.75
37.48
1.78
39.34
1.82
30
30.00
1.63
31.86
1.69
33.72
1.75
35.07
1.77
37.45
1.81
39.31
1.84
35
29.97
1.65
31.84
1.71
33.70
1.78
35.04
1.80
37.42
1.83
39.28
1.87
40
29.95
1.68
31.81
1.74
33.67
1.80
35.01
1.82
37.39
1.86
39.25
1.89
45
29.93
1.70
31.79
1.76
33.65
1.83
34.99
1.85
37.36
1.88
39.22
1.92
50
29.91
1.72
31.76
1.78
33.62
1.85
34.96
1.87
37.33
1.91
39.19
1.94
55
29.88
1.74
31.74
1.81
33.59
1.87
34.93
1.90
37.31
1.93
39.16
1.97
60
29.86
1.77
31.71
1.83
33.57
1.90
34.91
1.92
37.28
1.96
39.13
2.00
65
29.84
1.79
31.69
1.85
33.54
1.92
34.88
1.94
37.25
1.98
39.10
2.02
70
29.81
1.81
31.67
1.88
33.52
1.95
34.85
1.97
37.22
2.01
39.07
2.05
75
29.10
1.91
30.94
1.98
32.79
2.05
34.12
2.08
36.48
2.11
38.33
2.16
80
28.38
2.01
30.22
2.08
32.06
2.16
33.39
2.18
35.75
2.22
37.59
2.27
85
27.67
2.10
29.51
2.18
31.34
2.26
32.67
2.29
35.02
2.33
36.86
2.38
90
26.96
2.20
28.79
2.28
30.62
2.37
31.95
2.39
34.29
2.44
36.12
2.49
95
26.18
2.30
28.01
2.38
29.83
2.47
30.67
2.50
33.48
2.55
35.31
2.60
100
25.55
2.40
27.37
2.49
29.20
2.58
30.27
2.61
32.84
2.66
34.67
2.71
105
24.91
2.50
26.73
2.59
28.56
2.68
29.88
2.71
32.21
2.76
34.03
2.82
110
24.27
2.59
26.10
2.69
27.92
2.79
29.24
2.82
31.57
2.87
33.39
2.93
115
23.63
2.69
25.46
2.79
27.28
2.89
28.60
2.92
30.93
2.98
32.76
3.04
118
23.25
2.75
25.08
2.85
26.90
2.95
28.22
2.99
30.55
3.04
32.37
3.11
122
23.12
2.83
24.95
2.93
26.77
3.04
28.09
3.07
30.42
3.13
32.24
3.19
Mixed Indoor
Units
27 (50%)
14
25.37
1.20
26.95
1.24
28.52
1.28
29.66
1.30
31.67
1.32
33.25
1.35
20
25.35
1.21
26.93
1.26
28.50
1.30
29.64
1.32
31.65
1.34
33.22
1.37
25
25.33
1.23
26.90
1.27
28.48
1.32
29.61
1.34
31.62
1.36
33.20
1.39
30
25.31
1.25
26.88
1.29
28.46
1.34
29.59
1.35
31.60
1.38
33.17
1.41
35
25.29
1.26
26.86
1.31
28.43
1.36
29.57
1.37
31.58
1.40
33.15
1.43
40
25.27
1.28
26.84
1.33
28.41
1.38
29.55
1.39
31.55
1.42
33.12
1.45
45
25.25
1.30
26.82
1.35
28.39
1.39
29.52
1.41
31.53
1.44
33.10
1.47
50
25.23
1.32
26.80
1.36
28.37
1.41
29.50
1.43
31.50
1.46
33.07
1.49
55
25.22
1.33
26.78
1.38
28.35
1.43
29.48
1.45
31.48
1.48
33.05
1.51
60
25.20
1.35
26.76
1.40
28.33
1.45
29.46
1.47
31.46
1.49
33.02
1.52
65
25.18
1.37
26.74
1.42
28.30
1.47
29.43
1.49
31.43
1.51
32.99
1.54
70
25.16
1.38
26.72
1.43
28.28
1.49
29.41
1.50
31.41
1.53
32.97
1.56
75
24.55
1.46
26.11
1.51
27.67
1.57
28.79
1.59
30.79
1.62
32.34
1.65
80
23.95
1.53
25.50
1.59
27.06
1.65
28.18
1.67
30.17
1.70
31.72
1.73
85
23.35
1.61
24.90
1.67
26.45
1.73
27.57
1.75
29.55
1.78
31.10
1.82
90
22.75
1.68
24.29
1.74
25.84
1.81
26.96
1.83
28.93
1.86
30.48
1.90
95
22.10
1.76
23.63
1.82
25.17
1.89
25.88
1.91
28.25
1.95
29.79
1.98
100
21.56
1.83
23.10
1.90
24.64
1.97
25.54
1.99
27.71
2.03
29.25
2.07
105
21.02
1.91
22.56
1.98
24.10
2.05
25.21
2.07
27.18
2.11
28.72
2.15
110
20.48
1.98
22.02
2.05
23.56
2.13
24.67
2.15
26.64
2.19
28.18
2.24
115
19.94
2.06
21.48
2.13
23.02
2.21
24.13
2.23
26.10
2.28
27.64
2.32
118
19.62
2.10
21.16
2.18
22.70
2.26
23.81
2.28
25.78
2.33
27.32
2.37
122
19.51
2.16
21.05
2.24
22.59
2.32
23.70
2.35
25.67
2.39
27.21
2.44
PERFORMANCE DATA
Cooling Capacity Tables
Table 300:
LMU540HV Cooling Capacity Table — Mixed 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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