Multi F Outdoor Unit Engineering Manual

Table 139: LMU540HV Cooling Capacity Table — Mixed Indoor Units (continued).
PERFORMANCE DATA
Cooling Capacity Tables
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
24 (40%)
14 22.55 0.97 23.95 1.01 25.35 1.04 26.36 1.05 28.15 1.07 29.55 1.10
20 22.53 0.98 23.93 1.02 25.33 1.06 26.34 1.07 28.13 1.09 29.53 1.11
25 22.51 1.00 23.91 1.03 25.31 1.07 26.32 1.08 28.10 1.10 29.50 1.13
30 22.50 1.01 23.89 1.05 25.29 1.09 26.30 1.10 28.08 1.12 29.48 1.14
35 22.48 1.03 23.87 1.06 25.27 1.10 26.28 1.11 28.06 1.14 29.46 1.16
40 22.46 1.04 23.86 1.08 25.25 1.12 26.26 1.13 28.04 1.15 29.44 1.17
45 22.44 1.05 23.84 1.09 25.23 1.13 26.24 1.14 28.02 1.17 29.41 1.19
50 22.43 1.07 23.82 1.11 25.21 1.15 26.22 1.16 28.00 1.18 29.39 1.21
55 22.41 1.08 23.80 1.12 25.19 1.16 26.20 1.18 27.98 1.20 29.37 1.22
60 22.39 1.10 23.78 1.14 25.17 1.18 26.18 1.19 27.95 1.21 29.35 1.24
65 22.37 1.11 23.76 1.15 25.15 1.19 26.16 1.21 27.93 1.23 29.32 1.25
70 22.36 1.12 23.75 1.16 25.13 1.21 26.14 1.22 27.91 1.24 29.30 1.27
75 21.82 1.18 23.20 1.23 24.59 1.27 25.59 1.29 27.36 1.31 28.75 1.34
80 21.28 1.24 22.66 1.29 24.04 1.34 25.04 1.35 26.81 1.38 28.19 1.41
85 20.75 1.31 22.13 1.35 23.50 1.40 24.50 1.42 26.26 1.44 27.64 1.47
90 20.22 1.37 21.59 1.42 22.96 1.47 23.96 1.48 25.71 1.51 27.09 1.54
95 19.64 1.43 21.00 1.48 22.37 1.53 23.00 1.55 25.11 1.58 26.48 1.61
100 19.16 1.49 20.53 1.54 21.89 1.60 22.70 1.62 24.63 1.65 26.00 1.68
105 18.68 1.55 20.05 1.60 21.42 1.66 22.40 1.68 24.15 1.71 25.52 1.75
110 18.20 1.61 19.57 1.67 20.94 1.73 21.93 1.75 23.67 1.78 25.04 1.82
115 17.72 1.67 19.09 1.73 20.46 1.79 21.45 1.81 23.20 1.85 24.56 1.88
118 17.44 1.71 18.80 1.77 20.17 1.83 21.16 1.85 22.91 1.89 24.28 1.93
122 17.34 1.75 18.71 1.82 20.08 1.88 21.07 1.91 22.81 1.94 24.18 1.98
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 | 153
Multi F MAX Outdoor Unit Data
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