Engineering Manual

Model No. /
Nominal Capacity
of Indoor Unit
(Btu/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 SHC TC SHC TC SHC TC SHC TC SHC TC SHC
LMDN186HV
18,000
14 17.65 13.09 18.74 13.83 19.84 13.39 20.63 13.67 22.03 13.79 23.12 14.05
20 17.63 13.20 18.73 13.94 19.82 13.50 20.61 13.78 22.01 13.90 23.11 14.16
25 17.62 13.30 18.71 14.05 19.81 13.60 20.60 13.89 22.00 14.01 23.09 14.27
30 17.60 13.40 18.70 14.16 19.79 13.71 20.58 13.99 21.98 14.11 23.07 14.38
35 17.59 13.50 18.68 14.26 19.78 13.81 20.57 14.10 21.96 14.22 23.05 14.49
40 17.58 13.60 18.67 14.37 19.76 13.91 20.55 14.21 21.94 14.33 23.04 14.60
45 17.56 13.71 18.66 14.48 19.75 14.02 20.53 14.31 21.93 14.43 23.02 14.71
50 17.55 13.81 18.64 14.58 19.73 14.12 20.52 14.42 21.91 14.54 23.00 14.82
55 17.54 13.91 18.63 14.69 19.72 14.23 20.50 14.52 21.89 14.65 22.98 14.92
60 17.52 14.01 18.61 14.80 19.70 14.33 20.49 14.63 21.88 14.75 22.97 15.03
65 17.51 14.11 18.60 14.90 19.69 14.43 20.47 14.74 21.86 14.86 22.95 15.14
70 17.50 14.21 18.58 15.01 19.67 14.53 20.46 14.84 21.84 14.97 22.93 15.25
75 17.08 13.98 18.16 14.78 19.24 14.33 20.03 14.64 21.41 14.78 22.50 15.08
80 16.66 13.74 17.74 14.55 18.82 14.12 19.60 14.44 20.98 14.60 22.06 14.90
85 16.24 13.49 17.32 14.30 18.40 13.90 19.17 14.23 20.55 14.40 21.63 14.71
90 15.82 13.23 16.90 14.06 17.97 13.68 18.75 14.01 20.12 14.20 21.20 14.52
95 15.37 13.09 16.44 13.93 17.51 13.57 18.00 13.70 19.65 14.12 20.72 14.46
100 14.99 12.74 16.06 13.58 17.13 13.25 17.77 13.49 19.28 13.82 20.35 14.16
105 14.62 12.39 15.69 13.23 16.76 12.93 17.53 13.28 18.90 13.52 19.97 13.86
110 14.24 11.97 15.32 12.80 16.39 12.53 17.16 12.88 18.53 13.13 19.60 13.48
115 13.87 11.61 14.94 12.44 16.01 12.19 16.79 12.55 18.15 12.82 19.22 13.18
118 13.65 11.53 14.72 12.36 15.79 12.13 16.56 12.50 17.93 12.77 19.00 13.14
122 13.57 11.50 14.64 12.34 15.71 12.11 16.49 12.48 17.85 12.76 18.92 13.13
Table 43: Multi F Ceiling-Concealed Duct (Low Static) Indoor Units Cooling Capacity Table (continued).
DUCT (LOW STATIC) INDOOR UNITS
Cooling Capacity Table
TC = Total Capacity (kBtu/h).
SHC: Sensible Heat Capacity (kBtu/h).
Nominal capacity as rated 0 ft. above sea level and a 0 ft. level difference between outdoor and indoor
units. Corresponding refrigerant piping length is accordance with standard length of each outdoor unit.
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.
Due to our policy of continuous product innovation, some specications may change without notication.
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94 | DUCT (LOW STATIC)
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F