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
Non-Ducted
Indoor Units
54 (100%)
14 51.47 3.19 54.66 3.31 57.86 3.43 60.17 3.47 64.25 3.53 67.45 3.60
20 51.43 3.24 54.62 3.36 57.81 3.48 60.12 3.52 64.20 3.58 67.40 3.66
25 51.39 3.28 54.58 3.40 57.77 3.53 60.07 3.57 64.15 3.63 67.34 3.71
30 51.35 3.33 54.54 3.45 57.73 3.58 60.03 3.62 64.10 3.69 67.29 3.76
35 51.31 3.38 54.50 3.50 57.68 3.63 59.98 3.67 64.05 3.74 67.24 3.81
40 51.27 3.42 54.45 3.55 57.64 3.68 59.94 3.72 64.01 3.79 67.19 3.86
45 51.23 3.47 54.41 3.59 57.59 3.72 59.89 3.77 63.96 3.84 67.14 3.92
50 51.19 3.51 54.37 3.64 57.55 3.77 59.85 3.82 63.91 3.89 67.09 3.97
55 51.15 3.56 54.33 3.69 57.51 3.82 59.80 3.87 63.86 3.94 67.04 4.02
60 51.11 3.60 54.29 3.74 57.46 3.87 59.75 3.92 63.81 3.99 66.98 4.07
65 51.07 3.65 54.24 3.78 57.42 3.92 59.71 3.97 63.76 4.04 66.93 4.12
70 51.03 3.70 54.20 3.83 57.37 3.97 59.66 4.02 63.71 4.09 66.88 4.17
75 49.81 3.90 52.97 4.04 56.13 4.19 58.41 4.23 62.45 4.31 65.61 4.40
80 48.58 4.09 51.73 4.24 54.89 4.40 57.16 4.45 61.19 4.53 64.35 4.62
85 47.36 4.29 50.51 4.45 53.65 4.61 55.92 4.67 59.94 4.75 63.09 4.85
90 46.14 4.49 49.28 4.66 52.42 4.83 54.69 4.88 58.70 4.97 61.83 5.07
95 44.82 4.69 47.94 4.86 51.07 5.04 52.50 5.10 57.31 5.20 60.44 5.30
100 43.73 4.89 46.85 5.07 49.98 5.26 51.82 5.32 56.22 5.42 59.34 5.53
105 42.64 5.09 45.76 5.28 48.88 5.47 51.14 5.53 55.13 5.64 58.25 5.75
110 41.55 5.29 44.67 5.48 47.79 5.68 50.05 5.75 54.04 5.86 57.16 5.98
115 40.46 5.49 43.58 5.69 46.70 5.90 48.96 5.97 52.95 6.08 56.07 6.20
118 39.80 5.61 42.92 5.82 46.05 6.03 48.30 6.10 52.29 6.21 55.41 6.34
122 39.58 5.77 42.71 5.98 45.83 6.20 48.08 6.27 52.07 6.39 55.20 6.52
Non-Ducted
Indoor Units
49 (90%)
14 46.70 2.82 49.60 2.93 52.50 3.03 54.60 3.07 58.30 3.12 61.20 3.19
20 46.67 2.86 49.56 2.97 52.46 3.08 54.56 3.11 58.26 3.17 61.16 3.23
25 46.63 2.90 49.53 3.01 52.42 3.12 54.51 3.16 58.21 3.21 61.11 3.28
30 46.59 2.94 49.49 3.05 52.38 3.16 54.47 3.20 58.17 3.26 61.06 3.32
35 46.56 2.98 49.45 3.09 52.34 3.21 54.43 3.24 58.12 3.30 61.02 3.37
40 46.52 3.03 49.41
3.14 52.30 3.25 54.39 3.29 58.08 3.35 60.97 3.42
45 46.49 3.07 49.37 3.18 52.26 3.29 54.35 3.33 58.04 3.39 60.92 3.46
50 46.45 3.11 49.34 3.22 52.22 3.34 54.31 3.38 57.99 3.44 60.88 3.51
55 46.42 3.15 49.30 3.26 52.18 3.38 54.26 3.42 57.95 3.48 60.83 3.55
60 46.38 3.19 49.26 3.30 52.14 3.42 54.22 3.46 57.90 3.53 60.78 3.60
65 46.35 3.23 49.22 3.35 52.10 3.47 54.18 3.51 57.86 3.57 60.74 3.65
70 46.31 3.27 49.19 3.39 52.06 3.51 54.14 3.55 57.81 3.62 60.69 3.69
75 45.20 3.44 48.06 3.57 50.93 3.70 53.01 3.74 56.67 3.81 59.54 3.89
80 44.08 3.62 46.94 3.75 49.80 3.89 51.87 3.94 55.53 4.01 58.39 4.09
85 42.98 3.80 45.83 3.94 48.69 4.08 50.75 4.13 54.40 4.20 57.25 4.29
90 41.87 3.97 44.72 4.12 47.57 4.27 49.62 4.32 53.26 4.40 56.11 4.49
95 40.67 4.15 43.51 4.30 46.34 4.46 47.64 4.51 52.01 4.59 54.84 4.69
100 39.68 4.33 42.52 4.48 45.35 4.65 47.02 4.70 51.02 4.79 53.85 4.89
105 38.69 4.50 41.53 4.67 44.36 4.84 46.41 4.89 50.03 4.98 52.86 5.09
110 37.70 4.68 40.54 4.85 43.37 5.03 45.42 5.08 49.04 5.18 51.87 5.28
115 36.71 4.86 39.54 5.03 42.38 5.22 44.42 5.28 48.05 5.38 50.88 5.48
118 36.12 4.96 38.95 5.14 41.78 5.33 43.83 5.39 47.45 5.49 50.28 5.60
122 35.92 5.10 38.75 5.29 41.59 5.48 43.63 5.54 47.25 5.65 50.09 5.76
Table 125: LMU540HV Cooling Capacity Table — Non-Ducted Indoor Units.
PERFORMANCE DATA
Cooling Capacity Tables
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 | 139
Multi F MAX Outdoor Unit Data
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