Engineering Manual

Model No. /
Nominal Capacity of
Indoor Unit
(Btu/h)
Outdoor Air Temp. Indoor Air Temp. °F DB
°F DB °F WB
61 64 68 70 72 75
TC TC TC TC TC TC
LMCN125HV
12,000
0 -0.4 7.10 7.00 6.93 6.90 6.80 6.50
5 4.5 8.00 7.90 7.83 7.80 7.70 7.40
10 9 8.90 8.80 8.73 8.70 8.60 8.30
17 15 10.10 10.00 9.93 9.90 9.80 9.48
20 19 10.55 10.45 10.38 10.35 10.25 9.90
25 23 11.30 11.20 11.13 11.10 11.00 10.60
30 28 11.95 11.85 11.78 11.75 11.65 11.30
35 32 12.60 12.50 12.43 12.40 12.30 12.00
40 36 13.18 13.08 13.02 12.98 12.88 12.58
45 41 13.77 13.67 13.60 13.57 13.47 13.17
47 43 14.00 13.90 13.83 13.80 13.70 13.40
50 46 14.23 14.13 14.06 14.03 13.93 13.59
55 51 14.60 14.50 14.43 14.40 14.30 13.90
60 56 14.60 14.50 14.43 14.40 14.30 13.96
63 59 14.60 14.50 14.43 14.40 14.30 14.00
68 64 14.60 14.50 14.43 14.40 14.30 14.06
LMCN185HV
18,000
0 -0.4 10.70 10.55 10.45 10.40 10.25 9.80
5 4.5 12.06 11.91 11.81 11.76 11.61 11.15
10 9 13.41 13.26 13.16 13.11 12.96 12.51
17 15 15.22 15.07 14.97 14.92 14.77 14.29
20 19 15.90 15.75 15.65 15.60 15.45 14.92
25 23 17.03 16.88 16.78 16.73 16.58 15.98
30 28 18.01 17.86 17.76 17.71 17.56 17.03
35 32 18.99 18.84 18.74 18.69 18.54 18.09
40 36 19.87 19.72 19.62 19.57 19.42 18.97
45 41 20.75 20.60 20.50 20.45 20.30 19.85
47 43 21.10 20.95 20.85 20.80 20.65 20.20
50 46 21.44 21.29 21.19 21.14 20.99 20.48
55 51 22.01 21.86 21.75 21.70 21.55 20.95
60 56 22.01 21.86 21.75 21.70 21.55 21.04
63 59 22.01 21.86 21.75 21.70 21.55 21.10
68 64 22.01 21.86 21.75 21.70 21.55 21.20
Heating Capacity Table
FOUR-WAY CEILING-CASSETTE INDOOR UNITS
TC = Total 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 heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
Table 75:Multi F Four-Way Ceiling-Cassette Indoor Units Heating Capacity Table.
CEILING-CASSETTE | 137
Four-Way Ceiling-Cassette
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