Multi F Outdoor Unit Engineering Manual

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
43 (80%)
14 40.40 2.38 42.91 2.46 45.42 2.55 47.23 2.58 50.43 2.63 52.94 2.69
20 40.37 2.41 42.87 2.50 45.38 2.59 47.19 2.62 50.40 2.67 52.90 2.72
25 40.34 2.45 42.84 2.54 45.35 2.63 47.16 2.66 50.36 2.71 52.86 2.76
30 40.31 2.48 42.81 2.57 45.31 2.66 47.12 2.70 50.32 2.75 52.82 2.80
35 40.27 2.51 42.78 2.61 45.28 2.70 47.08 2.73 50.28 2.78 52.78 2.84
40 40.24 2.55 42.74 2.64 45.24 2.74 47.05 2.77 50.24 2.82 52.74 2.88
45 40.21 2.58 42.71 2.68 45.21 2.78 47.01 2.81 50.20 2.86 52.70 2.92
50 40.18 2.62 42.68 2.71 45.17 2.81 46.98 2.84 50.16 2.90 52.66 2.96
55 40.15 2.65 42.65 2.75 45.14 2.85 46.94 2.88 50.13 2.94 52.62 2.99
60 40.12 2.69 42.61 2.78 45.10 2.89 46.90 2.92 50.09 2.97 52.58 3.03
65 40.09 2.72 42.58 2.82 45.07 2.92 46.87 2.96 50.05 3.01 52.54 3.07
70 40.06 2.75 42.55 2.85 45.03 2.96 46.83 2.99 50.01 3.05 52.50 3.11
75 39.10 2.90 41.58 3.01 44.06 3.12 45.85 3.15 49.02 3.21 51.50 3.28
80 38.13 3.05 40.61 3.16 43.08 3.28 44.87 3.32 48.03 3.38 50.51 3.45
85 37.18 3.20 39.65 3.32 42.11 3.44 43.90 3.48 47.05 3.54 49.52 3.61
90 36.22 3.35 38.68 3.47 41.15 3.60 42.93 3.64 46.07 3.71 48.54 3.78
95 35.18 3.50 37.63 3.62 40.09 3.76 41.21 3.80 44.99 3.87 47.44 3.95
100 34.33 3.65 36.78 3.78 39.23 3.92 40.68 3.96 44.13 4.04 46.58 4.12
105 33.47 3.79 35.92 3.93 38.37 4.08 40.14 4.12 43.27 4.20 45.73 4.28
110 32.61 3.94 35.06 4.09 37.52 4.24 39.29 4.28 42.42 4.36 44.87 4.45
115 31.76 4.09 34.21 4.24 36.66 4.40 38.43 4.45 41.56 4.53 44.01 4.62
118 31.24 4.18 33.69 4.33 36.14 4.49 37.91 4.54 41.05 4.63 43.50 4.72
122 31.07 4.30 33.52 4.46 35.97 4.62 37.74 4.67 40.88 4.76 43.33 4.86
Mixed Indoor
Units
38 (70%)
14 35.70 2.01 37.92 2.08 40.14 2.16 41.74 2.18 44.57 2.22 46.79 2.27
20 35.68 2.04 37.89 2.11 40.11 2.19 41.71 2.21 44.54 2.26 46.75 2.30
25 35.65 2.07 37.86 2.14 40.08 2.22 41.67 2.25 44.50 2.29 46.72 2.33
30 35.62 2.10 37.83 2.17 40.05 2.25 41.64 2.28 44.47 2.32 46.68 2.37
35 35.59 2.12 37.80 2.20 40.01 2.28 41.61 2.31 44.44 2.35 46.65 2.40
40 35.57 2.15 37.78
2.23 39.98 2.31 41.58 2.34 44.40 2.38 46.61 2.43
45 35.54 2.18 37.75 2.26 39.95 2.34 41.55 2.37 44.37 2.42 46.57 2.46
50 35.51 2.21 37.72 2.29 39.92 2.38 41.52 2.40 44.33 2.45 46.54 2.50
55 35.48 2.24 37.69 2.32 39.89 2.41 41.48 2.43 44.30 2.48 46.50 2.53
60 35.46 2.27 37.66 2.35 39.86 2.44 41.45 2.47 44.27 2.51 46.47 2.56
65 35.43 2.30 37.63 2.38 39.83 2.47 41.42 2.50 44.23 2.54 46.43 2.59
70 35.40 2.33 37.60 2.41 39.80 2.50 41.39 2.53 44.20 2.58 46.40 2.63
75 34.55 2.45 36.74 2.54 38.94 2.63 40.52 2.66 43.32 2.71 45.52 2.77
80 33.70 2.58 35.89 2.67 38.07 2.77 39.65 2.80 42.45 2.85 44.64 2.91
85 32.85 2.70 35.04 2.80 37.22 2.90 38.80 2.94 41.58 2.99 43.77 3.05
90 32.01 2.83 34.19 2.93 36.36 3.04 37.94 3.07 40.72 3.13 42.90 3.19
95 31.09 2.95 33.26 3.06 35.43 3.17 36.42 3.21 39.76 3.27 41.92 3.34
100 30.34 3.08 32.50 3.19 34.67 3.31 35.95 3.35 39.00 3.41 41.17 3.48
105 29.58 3.20 31.75 3.32 33.91 3.44 35.48 3.48 38.24 3.55 40.41 3.62
110 28.82 3.33 30.99 3.45 33.15 3.58 34.72 3.62 37.49 3.69 39.65 3.76
115 28.07 3.46 30.23 3.58 32.40 3.71 33.96 3.76 36.73 3.83 38.90 3.90
118 27.61 3.53 29.78 3.66 31.94 3.79 33.51 3.84 36.28 3.91 38.44 3.99
122 27.46 3.63 29.63 3.76 31.79 3.90 33.36 3.95 36.12 4.02 38.29 4.10
PERFORMANCE DATA
Cooling Capacity Tables
Table 137: 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.
MULTI F MAX OUTDOOR UNIT | 151
Multi F MAX Outdoor Unit Data
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