LG MULTI F Series Engineering Manual page 322

Multi-zone heat pump systems 1.5 to 4.5 tons
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PERFORMANCE DATA
Heating Capacity Tables
Table 308: LMU540HV Heating Capacity Table — Ducted Indoor Units (continued).
Outdoor Air
Combination
Capacity Index
Temp.
(kBtu/h[%])
°F DB °F WB
-4
-4.4
0
-0.4
5
4.5
10
9
17
15
20
19
25
23
Ducted Indoor
30
28
Units
35
32
38 (70%)
40
36
45
41
47
43
50
46
55
51
60
56
63
59
68
64
-4
-4.4
0
-0.4
5
4.5
10
9
17
15
20
19
25
23
Ducted Indoor
30
28
Units
35
32
32 (60%)
40
36
45
41
47
43
50
46
55
51
60
56
63
59
68
64
-4
-4.4
0
-0.4
5
4.5
10
9
17
15
20
19
25
23
Ducted Indoor
30
28
Units
35
32
27 (50%)
40
36
45
41
47
43
50
46
55
51
60
56
63
59
68
64
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.
322 | MULTI F MAX OUTDOOR UNIT
61
64
TC
PI
TC
PI
18.96
2.37
17.64
2.47
21.70
2.45
20.46
2.55
24.95
2.55
23.80
2.64
27.13
2.64
26.03
2.73
29.52
2.76
28.49
2.84
30.97
2.83
29.98
2.92
33.41
2.97
32.42
3.06
35.87
3.13
34.76
3.23
38.32
3.28
37.10
3.39
40.28
3.37
39.15
3.49
42.72
3.49
41.70
3.61
43.70
3.54
42.72
3.66
43.82
3.52
42.94
3.62
44.04
3.48
43.31
3.57
44.25
3.44
43.68
3.51
44.38
3.42
43.90
3.48
44.51
3.40
44.12
3.44
15.97
1.97
14.86
2.05
18.27
2.03
17.22
2.11
21.01
2.11
20.04
2.19
22.84
2.18
21.92
2.26
24.86
2.28
23.99
2.35
26.08
2.35
25.25
2.42
28.13
2.46
27.29
2.53
30.20
2.59
29.26
2.67
32.27
2.71
31.24
2.81
33.91
2.79
32.96
2.89
35.97
2.89
35.11
2.99
36.79
2.93
35.97
3.03
36.90
2.91
36.15
3.00
37.08
2.88
36.46
2.95
37.26
2.85
36.77
2.91
37.37
2.83
36.96
2.88
37.48
2.82
37.15
2.85
13.47
1.63
12.54
1.70
15.41
1.69
14.53
1.75
17.72
1.75
16.91
1.82
19.27
1.81
18.49
1.88
20.97
1.89
20.24
1.95
22.00
1.95
21.30
2.01
23.73
2.04
23.03
2.10
25.48
2.15
24.69
2.22
27.23
2.25
26.36
2.33
28.61
2.32
27.81
2.40
30.35
2.40
29.62
2.48
31.04
2.43
30.35
2.51
31.13
2.42
30.51
2.49
31.29
2.39
30.77
2.45
31.44
2.37
31.03
2.41
31.53
2.35
31.19
2.39
31.62
2.34
31.34
2.37
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.
Indoor Air Temp. °F DB
68
70
TC
PI
TC
PI
17.49
2.49
17.27
2.51
20.11
2.58
19.82
2.61
23.22
2.70
22.84
2.73
25.30
2.80
24.87
2.83
27.60
2.93
27.10
2.98
28.98
3.02
28.45
3.08
31.29
3.18
30.70
3.24
33.56
3.33
32.95
3.40
35.84
3.48
35.20
3.56
37.90
3.59
37.24
3.66
40.47
3.72
39.80
3.79
41.50
3.77
40.82
3.84
41.88
3.73
41.27
3.79
42.51
3.65
42.02
3.69
43.14
3.58
42.77
3.60
43.52
3.53
43.22
3.55
43.90
3.48
43.67
3.49
14.73
2.07
14.54
2.08
16.93
2.14
16.69
2.16
19.55
2.23
19.23
2.26
21.31
2.32
20.94
2.35
23.23
2.43
22.81
2.47
24.40
2.50
23.95
2.55
26.34
2.63
25.85
2.68
28.26
2.76
27.74
2.82
30.18
2.88
29.64
2.95
31.91
2.97
31.36
3.03
34.07
3.08
33.51
3.14
34.94
3.13
34.37
3.18
35.26
3.09
34.75
3.13
35.79
3.02
35.38
3.06
36.32
2.96
36.01
2.98
36.64
2.92
36.39
2.94
36.96
2.88
36.77
2.89
12.43
1.72
12.27
1.72
14.29
1.78
14.08
1.79
16.50
1.85
16.23
1.87
17.98
1.92
17.67
1.95
19.60
2.02
19.25
2.05
20.59
2.08
20.21
2.12
22.23
2.18
21.81
2.23
23.84
2.29
23.41
2.34
25.46
2.39
25.00
2.45
26.92
2.47
26.46
2.52
28.75
2.56
28.27
2.61
29.48
2.60
29.00
2.64
29.75
2.56
29.32
2.60
30.20
2.51
29.85
2.54
30.65
2.46
30.38
2.48
30.92
2.43
30.70
2.44
31.19
2.39
31.03
2.40
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
F
MULTI
F
MULTI
MAX
72
75
TC
PI
TC
PI
17.10
2.52
16.35
2.62
19.59
2.62
18.76
2.72
22.54
2.75
21.63
2.84
24.52
2.87
23.56
2.96
26.70
3.02
25.67
3.11
28.02
3.12
26.95
3.21
30.22
3.29
29.09
3.38
32.45
3.46
31.26
3.55
34.68
3.63
33.43
3.72
36.72
3.72
35.39
3.82
39.26
3.84
37.83
3.96
40.28
3.89
38.81
4.01
40.78
3.83
39.41
3.93
41.63
3.73
40.40
3.81
42.47
3.62
41.39
3.68
42.98
3.56
41.98
3.60
43.49
3.50
42.58
3.53
14.40
2.09
13.76
2.17
16.49
2.17
15.80
2.25
18.98
2.28
18.22
2.35
20.65
2.37
19.83
2.45
22.48
2.50
21.61
2.57
23.59
2.59
22.69
2.66
25.45
2.73
24.49
2.80
27.33
2.87
26.32
2.94
29.20
3.00
28.15
3.08
30.91
3.08
29.79
3.17
33.06
3.18
31.86
3.28
33.91
3.22
32.68
3.32
34.34
3.17
33.18
3.26
35.05
3.09
34.01
3.15
35.76
3.00
34.85
3.05
36.19
2.95
35.35
2.98
36.62
2.90
35.86
2.92
12.15
1.73
11.61
1.80
13.92
1.80
13.33
1.87
16.01
1.89
15.37
1.95
17.42
1.97
16.73
2.03
18.97
2.08
18.24
2.14
19.90
2.15
19.15
2.21
21.47
2.26
20.66
2.32
23.06
2.38
22.21
2.44
24.64
2.49
23.75
2.56
26.08
2.56
25.14
2.63
27.89
2.64
26.88
2.72
28.61
2.68
27.57
2.76
28.97
2.63
28.00
2.70
29.57
2.56
28.70
2.62
30.17
2.49
29.40
2.53
30.53
2.45
29.83
2.48
30.90
2.41
30.25
2.43

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