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
Mixed Indoor
Units
49 (90%)
0 -0.4 26.00 3.12 24.48 3.24 24.47 3.29 23.92 3.31 23.47 3.33 22.48 3.46
5 4.5 30.60 3.25 29.18 3.37 28.75 3.43 28.14 3.47 27.65 3.50 26.54 3.62
10 9 33.69 3.37 32.33 3.48 31.61 3.57 30.96 3.62 30.45 3.66 29.25 3.77
17 15 37.07 3.53 35.78 3.64 34.75 3.75 34.07 3.81 33.53 3.86 32.24 3.98
20 19 39.13 3.63 37.88 3.74 36.66 3.87 35.96 3.94 35.39 4.00 34.05 4.11
25 23 42.55 3.82 41.29 3.93 39.85 4.08 39.10 4.16 38.50 4.23 37.05 4.34
30 28 45.98 4.02 44.56 4.15 43.03 4.28 42.24 4.38 41.61 4.45 40.08 4.56
35 32 49.41 4.22 47.84 4.38 46.21 4.49 45.38 4.59 44.72 4.68 43.10 4.79
40 36 51.93 4.35 50.47 4.50 48.86 4.63 48.02 4.72 47.34 4.80 45.62 4.93
45 41 55.08 4.50 53.76 4.65 52.18 4.80 51.31 4.89 50.62 4.96 48.78 5.10
47 43 56.34 4.56 55.08 4.72 53.50 4.87 52.63 4.95 51.93 5.02 50.04 5.17
50 46 56.50 4.54 55.36 4.67 53.99 4.81 53.21 4.88 52.58 4.94 50.81 5.07
55 51 56.78 4.49 55.84 4.60 54.81 4.71 54.18 4.76 53.67 4.80 52.08 4.91
60 56 57.05 4.44 56.31 4.53 55.62 4.61 55.14 4.64 54.76 4.67 53.36 4.74
63 59 57.22 4.41 56.60 4.48 56.11 4.55 55.72 4.57 55.42 4.59 54.13 4.65
68 64 57.39 4.38 56.88 4.44 56.60 4.49 56.31 4.50 56.08 4.51 54.90 4.55
Mixed Indoor
Units
43 (80%)
0 -0.4 22.82 2.71 21.49 2.81 21.48 2.86 20.99 2.88 20.60 2.90 19.73 3.00
5 4.5 26.86 2.82 25.61 2.92 25.23 2.98 24.69 3.02 24.27 3.04 23.29 3.15
10 9 29.56 2.93 28.37 3.03 27.74 3.10 27.18 3.14 26.72 3.18 25.67 3.28
17 15 32.54 3.06 31.41 3.16 30.50 3.26 29.90 3.31 29.43 3.36 28.29 3.45
20 19 34.34 3.16 33.25 3.25 32.18 3.36 31.56 3.43 31.06 3.48 29.88 3.57
25 23 37.34 3.32 36.24 3.41 34.98 3.54 34.31 3.61 33.78 3.67 32.51 3.77
30 28 40.36 3.49 39.11 3.61 37.76 3.72 37.07 3.80 36.52 3.87 35.17 3.96
35 32 43.37 3.67 41.99 3.80 40.56 3.90 39.83 3.99 39.24 4.06 37.83 4.16
40 36 45.58 3.78 44.30 3.91 42.88 4.02 42.14 4.10 41.55 4.17 40.04 4.28
45 41 48.34 3.91 47.18 4.04 45.79 4.17 45.03 4.24 44.42 4.30 42.81 4.43
47 43 49.44 3.97
48.34 4.10 46.96 4.23 46.19 4.30 45.58 4.36 43.92 4.49
50 46 49.59 3.94 48.59 4.06 47.39 4.18 46.70 4.24 46.15 4.29 44.59 4.40
55 51 49.83 3.90 49.00 3.99 48.10 4.09 47.55 4.14 47.11 4.17 45.71 4.26
60 56 50.07 3.86 49.42 3.93 48.81 4.00 48.40 4.03 48.06 4.06 46.83 4.12
63 59 50.22 3.83 49.67 3.89 49.24 3.95 48.90 3.97 48.63 3.99 47.50 4.04
68 64 50.36 3.81 49.92 3.86 49.67 3.90 49.42 3.91 49.21 3.92 48.19 3.95
Mixed Indoor
Units
38 (70%)
0 -0.4 20.17 2.36 18.99 2.45 18.98 2.49 18.55 2.51 18.20 2.53 17.44 2.62
5 4.5 23.74 2.46 22.63 2.55 22.30 2.60 21.82 2.63 21.45 2.65 20.58 2.74
10 9 26.13 2.55 25.07 2.64 24.51 2.70 24.02 2.74 23.62 2.77 22.69 2.86
17 15 28.76 2.67 27.75 2.76 26.96 2.84 26.43 2.89 26.00 2.93 25.00 3.01
20 19 30.35 2.75 29.38 2.84 28.44 2.93 27.89 2.99 27.45 3.03 26.41 3.12
25 23 33.00 2.89 32.02 2.98 30.91 3.09 30.32 3.15 29.86 3.20 28.73 3.29
30 28 35.66 3.05 34.56 3.15 33.37 3.24 32.76 3.32 32.27 3.37 31.08 3.46
35 32 38.32 3.20 37.10 3.31 35.84 3.40 35.20 3.48 34.68 3.54 33.43 3.63
40 36 40.28 3.29 39.15 3.41 37.90 3.50 37.24 3.58 36.72 3.64 35.39 3.73
45 41 42.72 3.41 41.70 3.53 40.47 3.63 39.80 3.70 39.26 3.75 37.83 3.86
47 43 43.70 3.46 42.72 3.57 41.50 3.69 40.82 3.75 40.28 3.80 38.81 3.92
50 46 43.82 3.44 42.94 3.54 41.88 3.64 41.27 3.70 40.78 3.74 39.41 3.84
55 51 44.04 3.40 43.31 3.48 42.51 3.57 42.02 3.61 41.63 3.64 40.40 3.72
60 56 44.25 3.36 43.68 3.43 43.14 3.49 42.77 3.52 42.47 3.54 41.39 3.59
63 59 44.38 3.34 43.90 3.40 43.52 3.45 43.22 3.46 42.98 3.48 41.98 3.52
68 64 44.51 3.32 44.12 3.36 43.90 3.40 43.67 3.41 43.49 3.42 42.58 3.45
Table 149: LMU540HV Heating 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 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 | 163
Multi F MAX Outdoor Unit Data
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