Multi F Outdoor Unit Engineering Manual

PERFORMANCE DATA
Heating Capacity Tables
Combination
Capacity Index
(kBtu/h[%])
Outdoor Air
Temp.
Indoor Air Temp. °F DB
61 64 68 70 72 75
°F DB °F WB TC PI TC PI TC PI TC PI TC PI TC PI
Ducted Indoor
Units
54 (100%)
0 -0.4 30.62 3.56 28.86 3.70 28.81 3.75 28.16 3.79 27.64 3.81 26.48 3.95
5 4.5 35.30 3.70 33.67 3.84 33.16 3.92 32.46 3.96 31.90 3.99 30.61 4.13
10 9 38.44 3.83 36.89 3.96 36.07 4.06 35.33 4.12 34.75 4.16 33.38 4.29
17 15 41.89 4.00 40.43 4.13 39.27 4.26 38.50 4.33 37.88 4.39 36.43 4.51
20 19 43.98 4.12 42.58 4.24 41.21 4.39 40.42 4.47 39.78 4.54 38.27 4.66
25 23 47.47 4.32 46.06 4.45 44.46 4.61 43.62 4.71 42.94 4.78 41.33 4.91
30 28 50.96 4.54 49.38 4.69 47.69 4.84 46.81 4.94 46.11 5.03 44.42 5.15
35 32 54.45 4.76 52.72 4.93 50.93 5.06 50.01 5.18 49.28 5.27 47.50 5.40
40 36 57.23 4.90 55.62 5.07 53.85 5.21 52.92 5.32 52.17 5.41 50.28 5.56
45 41 60.70 5.08 59.25 5.25 57.50 5.41 56.55 5.51 55.78 5.59 53.76 5.75
47 43 62.09 5.15 60.70 5.32 58.96 5.49 58.00 5.58 57.23 5.66 55.15 5.83
50 46 62.27 5.11 61.01 5.27 59.50 5.42 58.64 5.50 57.95 5.57 55.99 5.72
55 51 62.57 5.06 61.53 5.18 60.40 5.31 59.70 5.37 59.15 5.42 57.40 5.53
60 56 62.88 5.00 62.06 5.10 61.29 5.20 60.77 5.23 60.35 5.27 58.81 5.35
63 59 63.06 4.97 62.37 5.05 61.83 5.13 61.41 5.15 61.07 5.18 59.65 5.24
68 64 63.24 4.94 62.69 5.00 62.37 5.06 62.05 5.08 61.80 5.09 60.51 5.13
Ducted Indoor
Units
49 (90%)
0 -0.4 27.78 3.22 26.19 3.34 26.14 3.39 25.55 3.42 25.08 3.44 24.02 3.57
5 4.5 32.03 3.34 30.55 3.47 30.09 3.54 29.45 3.58 28.94 3.61 27.78 3.73
10 9 34.88 3.46 33.48 3.58 32.73 3.67 32.06 3.72 31.53 3.76 30.29 3.88
17 15 38.01 3.62 36.69 3.73 35.63 3.85 34.94 3.91 34.38 3.96 33.05 4.08
20 19 39.91 3.72 38.64 3.83 37.39 3.97 36.68 4.04 36.10 4.10 34.73 4.21
25 23 43.07 3.90 41.79 4.02 40.34 4.17 39.58 4.25 38.97 4.32 37.50 4.43
30 28 46.24 4.10 44.81 4.24 43.27 4.37 42.48 4.46 41.84 4.54 40.31 4.66
35 32 49.41 4.30 47.84 4.46 46.21 4.57 45.38 4.68 44.72 4.76 43.10 4.88
40 36 51.93 4.43 50.47 4.58 48.86 4.71 48.02 4.81 47.34 4.89 45.62 5.02
45 41 55.08 4.58 53.76 4.74 52.18 4.88 51.31 4.97 50.62 5.05 48.78 5.19
47 43 56.34 4.65
55.08 4.80 53.50 4.95 52.63 5.04 51.93 5.11 50.04 5.26
50 46 56.50 4.62 55.36 4.76 53.99 4.89 53.21 4.97 52.58 5.03 50.81 5.16
55 51 56.78 4.57 55.84 4.68 54.81 4.79 54.18 4.85 53.67 4.89 52.08 5.00
60 56 57.05 4.52 56.31 4.61 55.62 4.69 55.14 4.73 54.76 4.76 53.36 4.83
63 59 57.22 4.49 56.60 4.56 56.11 4.63 55.72 4.66 55.42 4.67 54.13 4.73
68 64 57.39 4.46 56.88 4.52 56.60 4.57 56.31 4.58 56.08 4.59 54.90 4.63
Ducted Indoor
Units
43 (80%)
0 -0.4 24.38 2.80 22.98 2.90 22.95 2.95 22.43 2.97 22.01 2.99 21.08 3.10
5 4.5 28.11 2.91 26.81 3.01 26.41 3.07 25.85 3.11 25.40 3.13 24.38 3.24
10 9 30.61 3.01 29.38 3.11 28.72 3.19 28.14 3.23 27.67 3.27 26.58 3.37
17 15 33.36 3.14 32.20 3.24 31.27 3.34 30.66 3.40 30.17 3.44 29.01 3.54
20 19 35.03 3.23 33.91 3.33 32.82 3.45 32.19 3.51 31.68 3.56 30.48 3.66
25 23 37.80 3.39 36.68 3.49 35.40 3.62 34.73 3.69 34.20 3.75 32.91 3.85
30 28 40.58 3.57 39.33 3.68 37.98 3.80 37.28 3.88 36.72 3.95 35.37 4.05
35 32 43.37 3.74 41.99 3.87 40.56 3.97 39.83 4.06 39.24 4.14 37.83 4.24
40 36 45.58 3.85 44.30 3.98 42.88 4.09 42.14 4.18 41.55 4.25 40.04 4.36
45 41 48.34 3.98 47.18 4.12 45.79 4.25 45.03 4.32 44.42 4.38 42.81 4.51
47 43 49.44 4.04 48.34 4.17 46.96 4.31 46.19 4.38 45.58 4.44 43.92 4.57
50 46 49.59 4.01 48.59 4.13 47.39 4.25 46.70 4.32 46.15 4.37 44.59 4.49
55 51 49.83 3.97 49.00 4.07 48.10 4.17 47.55 4.21 47.11 4.25 45.71 4.34
60 56 50.07 3.93 49.42 4.00 48.81 4.08 48.40 4.11 48.06 4.13 46.83 4.20
63 59 50.22 3.90 49.67 3.97 49.24 4.03 48.90 4.05 48.63 4.06 47.50 4.11
68 64 50.36 3.88 49.92 3.93 49.67 3.97 49.42 3.98 49.21 3.99 48.19 4.03
Table 145: LMU540HV Heating 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 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).
MULTI F MAX OUTDOOR UNIT | 159
Multi F MAX Outdoor Unit Data
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