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
Ducted Indoor
Units
27 (50%)
14 25.00 1.20 26.55 1.24 28.10 1.28 29.22 1.30 31.21 1.32 32.76 1.35
20 24.98 1.21 26.53 1.26 28.08 1.30 29.20 1.32 31.18 1.34 32.73 1.37
25 24.96 1.23 26.51 1.27 28.06 1.32 29.18 1.34 31.16 1.36 32.71 1.39
30 24.94 1.25 26.49 1.29 28.04 1.34 29.16 1.35 31.14 1.38 32.68 1.41
35 24.92 1.26 26.47 1.31 28.02 1.36 29.13 1.37 31.11 1.40 32.66 1.43
40 24.90 1.28 26.45 1.33 28.00 1.38 29.11 1.39 31.09 1.42 32.63 1.45
45 24.88 1.30 26.43 1.35 27.97 1.39 29.09 1.41 31.06 1.44 32.61 1.47
50 24.86 1.32 26.41 1.36 27.95 1.41 29.07 1.43 31.04 1.46 32.58 1.49
55 24.85 1.33 26.39 1.38 27.93 1.43 29.05 1.45 31.02 1.48 32.56 1.51
60 24.83 1.35 26.37 1.40 27.91 1.45 29.02 1.47 30.99 1.49 32.54 1.52
65 24.81 1.37 26.35 1.42 27.89 1.47 29.00 1.49 30.97 1.51 32.51 1.54
70 24.79 1.38 26.33 1.43 27.87 1.49 28.98 1.50 30.95 1.53 32.49 1.56
75 24.19 1.46 25.73 1.51 27.26 1.57 28.37 1.59 30.33 1.62 31.87 1.65
80 23.59 1.53 25.13 1.59 26.66 1.65 27.76 1.67 29.72 1.70 31.25 1.73
85 23.00 1.61 24.53 1.67 26.06 1.73 27.16 1.75 29.12 1.78 30.64 1.82
90 22.41 1.68 23.94 1.74 25.46 1.81 26.56 1.83 28.51 1.86 30.03 1.90
95 21.77 1.76 23.29 1.82 24.80 1.89 25.50 1.91 27.84 1.95 29.35 1.98
100 21.24 1.83 22.76 1.90 24.27 1.97 25.17 1.99 27.31 2.03 28.82 2.07
105 20.71 1.91 22.23 1.98 23.74 2.05 24.84 2.07 26.78 2.11 28.29 2.15
110 20.18 1.98 21.70 2.05 23.21 2.13 24.31 2.15 26.25 2.19 27.76 2.24
115 19.65 2.06 21.17 2.13 22.68 2.21 23.78 2.23 25.72 2.28 27.23 2.32
118 19.33 2.10 20.85 2.18 22.37 2.26 23.46 2.28 25.40 2.33 26.92 2.37
122 19.23 2.16 20.74 2.24 22.26 2.32 23.35 2.35 25.29 2.39 26.81 2.44
Ducted Indoor
Units
24 (40%)
14 22.22 0.97 23.60 1.01 24.98 1.04 25.98 1.05 27.74 1.07 29.12 1.10
20 22.21 0.98 23.59 1.02 24.96 1.06 25.96 1.07 27.72 1.09 29.10 1.11
25 22.19 1.00 23.57 1.03 24.95 1.07 25.94 1.08 27.70 1.10 29.08 1.13
30 22.17 1.01 23.55 1.05 24.93 1.09 25.92 1.10 27.68 1.12 29.06 1.14
35 22.16 1.03 23.53 1.06 24.91 1.10 25.90 1.11 27.66 1.14 29.04 1.16
40 22.14 1.04 23.51
1.08 24.89 1.12 25.88 1.13 27.64 1.15 29.01 1.17
45 22.12 1.05 23.50 1.09 24.87 1.13 25.86 1.14 27.62 1.17 28.99 1.19
50 22.10 1.07 23.48 1.11 24.85 1.15 25.84 1.16 27.60 1.18 28.97 1.21
55 22.09 1.08 23.46 1.12 24.83 1.16 25.82 1.18 27.57 1.20 28.95 1.22
60 22.07 1.10 23.44 1.14 24.81 1.18 25.80 1.19 27.55 1.21 28.92 1.24
65 22.05 1.11 23.42 1.15 24.79 1.19 25.78 1.21 27.53 1.23 28.90 1.25
70 22.04 1.12 23.41 1.16 24.77 1.21 25.76 1.22 27.51 1.24 28.88 1.27
75 21.51 1.18 22.87 1.23 24.24 1.27 25.22 1.29 26.97 1.31 28.33 1.34
80 20.98 1.24 22.34 1.29 23.70 1.34 24.68 1.35 26.42 1.38 27.79 1.41
85 20.45 1.31 21.81 1.35 23.17 1.40 24.15 1.42 25.88 1.44 27.24 1.47
90 19.93 1.37 21.28 1.42 22.64 1.47 23.61 1.48 25.35 1.51 26.70 1.54
95 19.35 1.43 20.70 1.48 22.05 1.53 22.67 1.55 24.75 1.58 26.10 1.61
100 18.88 1.49 20.23 1.54 21.58 1.60 22.38 1.62 24.28 1.65 25.63 1.68
105 18.41 1.55 19.76 1.60 21.11 1.66 22.08 1.68 23.81 1.71 25.15 1.75
110 17.94 1.61 19.29 1.67 20.64 1.73 21.61 1.75 23.33 1.78 24.68 1.82
115 17.47 1.67 18.82 1.73 20.17 1.79 21.14 1.81 22.86 1.85 24.21 1.88
118 17.19 1.71 18.53 1.77 19.88 1.83 20.86 1.85 22.58 1.89 23.93 1.93
122 17.09 1.75 18.44 1.82 19.79 1.88 20.76 1.91 22.49 1.94 23.83 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.
Table 133: LMU540HV Cooling Capacity Table — Ducted Indoor Units (continued).
PERFORMANCE DATA
Cooling Capacity Tables
MULTI F MAX OUTDOOR UNIT | 147
Multi F MAX Outdoor Unit Data
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