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48 | PERFORMANCE DATA
Single-Zone LGRED° Four-Way Ceiling-Cassette System Engineering Manual
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Maximum Cooling Capacity
PERFORMANCE DATA
Table 30: LCN188HV4 / LUU180HHV Maximum Cooling Capacities.
LC188HHV4
Maximum Cooling Capacity Table for LC188HHV4 (LCN188HV4 +
LUU180HHV)
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 SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI
-4 24.38 16.10 1.69 25.90 17.00 1.75 27.41 16.46 1.81 28.50 16.81 1.83 30.44 16.95 1.87 31.95 17.27 1.90
-0.4 24.37 16.19 1.70 25.88 17.10 1.77 27.40 16.56 1.83 28.49 16.91 1.85 30.42 17.05 1.89 31.94 17.37 1.93
5 24.35 16.33 1.73 25.86 17.25 1.80 27.37 16.70 1.86 28.46 17.06 1.88 30.40 17.20 1.92 31.91 17.53 1.96
10 24.33 16.46 1.76 25.84 17.39 1.82 27.35 16.84 1.89 28.44 17.19 1.91 30.37 17.34 1.95 31.88 17.67 1.99
15 24.31 16.59 1.78 25.82 17.53 1.85 27.33 16.97 1.92 28.42 17.33 1.94 30.35 17.47 1.97 31.86 17.80 2.01
20 24.29 16.72 1.81 25.80 17.66 1.88 27.31 17.10 1.94 28.40 17.46 1.97 30.33 17.61 2.00 31.84 17.94 2.04
25 24.27 16.85 1.83 25.78 17.80 1.90 27.29 17.24 1.97 28.38 17.60 1.99 30.30 17.75 2.03 31.81 18.08 2.07
30 24.26 16.98 1.86 25.76 17.94 1.93 27.27 17.37 2.00 28.36 17.73 2.02 30.28 17.88 2.06 31.79 18.22 2.10
35 24.24 17.11 1.89 25.74 18.07 1.95 27.25 17.50 2.03 28.33 17.87 2.05 30.26 18.02 2.09 31.76 18.36 2.13
40 24.22 17.24 1.91 25.72 18.21 1.98 27.23 17.63 2.05 28.31 18.00 2.08 30.24 18.15 2.12 31.74 18.50 2.16
45 24.20 17.37 1.94 25.70 18.35 2.01 27.21 17.76 2.08 28.29 18.14 2.11 30.21 18.29 2.14 31.71 18.64 2.19
50 24.18 17.49 1.96 25.68 18.48 2.03 27.19 17.89 2.11 28.27 18.27 2.13 30.19 18.43 2.17 31.69 18.77 2.22
55 24.16 17.62 1.99 25.66 18.62 2.06 27.16 18.03 2.14 28.25 18.40 2.16 30.17 18.56 2.20 31.67 18.91 2.25
60 24.14 17.75 2.01 25.64 18.75 2.09 27.14 18.16 2.16 28.23 18.54 2.19 30.14 18.69 2.23 31.64 19.05 2.27
65 24.13 17.88 2.04 25.62 18.89 2.11 27.12 18.29 2.19 28.20 18.67 2.22 30.12 18.83 2.26 31.62 19.19 2.30
70 24.11 18.01 2.07 25.60 19.02 2.14 27.10 18.42 2.22 28.18 18.81 2.24 30.10 18.96 2.29 31.59 19.32 2.33
75 23.53 17.71 2.18 25.02 18.73 2.26 26.51 18.16 2.34 27.59 18.55 2.37 29.50 18.73 2.41 30.99 19.10 2.46
80 22.95 17.41 2.29 24.44 18.44 2.37 25.93 17.89 2.46 27.00 18.30 2.49 28.91 18.50 2.53 30.40 18.88 2.58
85 22.37 17.09 2.40 23.86 18.13 2.49 25.34 17.61 2.58 26.42 18.03 2.61 28.32 18.25 2.66 29.80 18.64 2.71
90 21.80 16.77 2.51 23.28 17.81 2.60 24.76 17.33 2.70
25.83 17.75 2.73 27.73 17.99 2.78 29.21 18.40 2.84
95 21.17 16.59 2.62 22.65 17.65 2.72 24.12 17.20 2.82 24.80 17.36 2.85 27.07 17.90 2.90 28.55 18.32 2.96
100 20.66 16.15 2.73 22.13 17.20 2.83 23.61 16.79 2.94 24.48 17.09 2.97 26.56 17.51 3.03 28.03 17.94 3.09
105 20.14 15.70 2.85 21.62 16.76 2.95 23.09 16.38 3.06 24.16 16.82 3.09 26.04 17.13 3.15 27.52 17.57 3.21
110 19.63 15.17 2.96 21.10 16.22 3.06 22.58 15.87 3.18 23.64 16.32 3.21 25.53 16.64 3.27 27.00 17.08 3.34
115 19.11 14.71 3.07 20.59 15.76 3.18 22.06 15.45 3.30 23.13 15.90 3.33 25.01 16.24 3.40 26.49 16.70 3.47
118 18.80 14.61 3.14 20.28 15.67 3.25 21.75 15.37 3.37 22.82 15.83 3.41 24.70 16.19 3.47 26.18 16.65 3.54
122 18.70 14.57 3.22 20.17 15.63 3.34 21.65 15.35 3.46 22.71 15.81 3.50 24.60 16.17 3.57 26.07 16.64 3.64
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity (kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan motor and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Cooling range can be extended from 5°F down to -4°F using the Low Ambient Wind Baffle Kit (sold
separately).
3. Grey shading indicates reference data. When operating at this temperature, these values can be
different if the system is not running consistently.
4. Direct interpolation is permissible.
Do not extrapolate.
Capacity as rated: 0 ft. above sea level with 24.6 ft. of refrigerant piping. 0 ft. level difference between
outdoor and indoor units.
Maximum capacity based on full-load (maximum) compressor operation rather than part-load operation
as published in rated capacity tables.
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