Performance data
COOLING CAPACITIES
50HS018 (1
1
⁄
2
TONS)
Temp (F)
Air Ent
Outdoor
Coil
(edb)
Indoor Entering Air — Cfm/BF
525/0.05 675/0.07 750/0.07
Indoor Entering Air — Ewb (F)
72 67 63* 62 72 67 63* 62 72 67 63* 62
85
TC 21.7 19.6 17.9 17.2 22.3 20.3 18.7 18.0 22.2 20.5 18.8 18.3
SHC 10.0 12.8 12.3 15.1 10.8 14.2 13.8 17.1 10.9 14.9 14.5 17.9
kW 1.94 1.90 1.86 1.85 2.01 1.97 1.93 1.92 2.03 2.01 1.97 1.96
95
TC 20.8 18.4 16.7 16.0 21.4 19.0 17.3 16.8 21.5 19.2 17.5 17.1
SHC 9.78 12.3 11.8 14.5 10.6 13.8 13.3 16.5 10.9 14.6 14.0 17.1
kW 2.07 2.01 1.96 1.95 2.14 2.09 2.04 2.04 2.17 2.13 2.08 2.08
105
TC 19.5 17.0 15.4 14.7 20.1 17.6 15.9 15.6 20.2 17.8 16.1 16.1
SHC 9.36 11.8 11.2 13.9 10.3 13.4 12.7 15.6 10.6 14.1 13.4 16.1
kW 2.19 2.12 2.07 2.05 2.27 2.20 2.15 2.15 2.30 2.24 2.18 2.19
115
TC 18.1 15.6 14.1 13.5 18.7 16.1 14.5 14.6 18.8 16.3 14.6 15.0
SHC 8.89 11.3 10.7 13.3 9.83 12.8 12.2 14.6 10.2 13.6 12.8 15.0
kW 2.31 2.23 2.16 2.15 2.39 2.31 2.25 2.26 2.42 2.35 2.28 2.31
50HS024 (2 TONS)
Temp (F)
Air Ent
Outdoor
Coil
(edb)
Indoor Entering Air — Cfm/BF
700/0.04 800/0.05 900/0.06
Indoor Entering Air — Ewb (F)
72 67 63* 62 72 67 63* 62 72 67 63* 62
85
TC 28.6 25.2 23.0 21.9 29.1 25.7 23.5 22.4 29.5 26.0 23.8 22.7
SHC 13.0 16.2 15.6 19.3 13.6 17.3 16.7 20.7 14.1 18.3 17.6 21.9
kW 2.66 2.58 2.51 2.49 2.72 2.64 2.57 2.55 2.77 2.69 2.62 2.61
95
TC 26.9 23.6 21.4 20.4 27.4 24.0 21.8 20.8 27.7 24.3 22.1 21.2
SHC 12.4 15.6 15.0 18.6 13.0 16.7 16.0 19.9 13.5 17.7 16.9 21.0
kW 2.79 2.70 2.63 2.61 2.85 2.76 2.69 2.67 2.90 2.82 2.74 2.73
105
TC 25.2 21.9 19.8 18.8 25.6 22.2 20.1 19.3 25.9 22.5 20.4 19.9
SHC 11.9 15.0 14.4 17.9 12.5 16.1 15.3 19.1 13.0 17.0 16.3 19.9
kW 2.92 2.82 2.73 2.72 2.98 2.88 2.80 2.78 3.04 2.93 2.85 2.86
115
TC 23.4 20.1 18.2 17.4 23.8 20.5 18.4 18.0 24.0 20.6 18.6 18.6
SHC 11.3 14.4 13.7 17.1 11.9 15.4 14.7 18.0 12.5 16.4 15.6 18.6
kW 3.04 2.93 2.83 2.82 3.11 2.99 2.89 2.90 3.16 3.04 2.95 2.97
50HS030 (2
1
⁄
2
TONS)
Temp (F)
Air Ent
Outdoor
Coil
(edb)
Indoor Entering Air — Cfm/BF
875/0.05 1000/0.06 1125/0.06
Indoor Entering Air — Ewb (F)
72 67 63* 62 72 67 63* 62 72 67 63* 62
85
TC 34.1 30.5 27.9 26.8 34.5 31.0 28.5 27.4 34.9 31.4 28.8 27.8
SHC 16.0 20.3 19.6 24.2 16.6 21.6 20.8 25.9 17.2 22.8 22.0 27.3
kW 3.24 3.17 3.11 3.09 3.31 3.24 3.17 3.16 3.37 3.31 3.24 3.23
95
TC 32.3 28.6 26.1 25.1 32.8 29.0 26.5 25.6 33.1 29.3 26.8 26.1
SHC 15.4 19.6 18.8 23.4 16.1 20.9 20.1 25.0 16.7 22.1 21.2 26.1
kW 3.43 3.34 3.27 3.25 3.49 3.41 3.34 3.33 3.56 3.48 3.40 3.40
105
TC 30.2 26.5 24.2 23.3 30.7 26.9 24.6 23.9 31.0 27.1 24.8 24.6
SHC 14.7 18.8 18.1 22.5 15.5 20.1 19.3 23.8 16.1 21.3 20.4 24.6
kW 3.59 3.49 3.40 3.39 3.66 3.56 3.48 3.47 3.73 3.63 3.55 3.56
115
TC 27.9 24.4 22.3 21.5 28.3 24.7 22.5 22.3 28.6 24.9 22.7 23.0
SHC 14.0 18.0 17.3 21.5 14.8 19.3 18.4 22.3 15.5 20.5 19.6 23.0
kW 3.74 3.62 3.52 3.51 3.81 3.70 3.60 3.61 3.88 3.77 3.67 3.71
50HS036 (3 TONS)
Temp (F)
Air Ent
Outdoor
Coil
(edb)
Indoor Entering Air — Cfm/BF
1050/0.10 1300/0.13 1500/0.14
Indoor Entering Air — Ewb (F)
72 67 63* 62 72 67 63* 62 72 67 63* 62
85
TC 40.1 36.8 33.9 33.1 40.8 37.7 34.9 34.4 41.4 38.2 35.5 35.3
SHC 19.8 25.4 24.6 30.4 20.9 27.9 27.0 33.4 22.0 29.6 28.8 35.3
kW 3.80 3.70 3.62 3.59 3.92 3.83 3.76 3.74 4.03 3.93 3.87 3.86
95
TC 38.2 34.6 31.7 31.1 38.8 35.6 32.6 32.4 39.7 36.1 33.1 33.4
SHC 19.2 24.6 23.6 29.3 20.4 27.1 26.1 32.1 21.8 29.0 27.8 33.4
kW 4.02 3.90 3.80 3.77 4.15 4.04 3.95 3.94 4.28 4.15 4.05 4.07
105
TC 36.1 32.4 29.6 29.1 36.9 33.3 30.4 30.5 37.1 33.7 30.8 31.6
SHC 18.5 23.7 22.7 28.2 20.0 26.3 25.1 30.5 20.8 28.1 26.8 31.6
kW 4.25 4.09 3.97 3.94 4.39 4.24 4.12 4.13 4.48 4.35 4.23 4.27
115
TC 33.8 30.1 27.5 27.2 34.6 30.9 28.1 28.7 34.8 31.2 28.5 29.7
SHC 17.7 22.8 21.8 27.0 19.3 25.3 24.1 28.7 20.3 27.1 25.8 29.7
kW 4.46 4.28 4.14 4.12 4.62 4.43 4.29 4.32 4.71 4.54 4.40 4.47
50HS042 (3
1
⁄
2
TONS)
Temp (F)
Air Ent
Outdoor
Coil
(edb)
Indoor Entering Air — Cfm/BF
1225/0.07 1400/0.08 1575/0.09
Indoor Entering Air — Ewb (F)
72 67 63* 62 72 67 63* 62 72 67 63* 62
85
TC 51.9 47.3 43.4 42.6 52.8 48.7 44.7 43.8 53.8 49.5 45.6 44.9
SHC 25.6 32.4 37.2 38.2 26.5 34.6 40.0 41.1 28.0 36.6 42.3 43.4
kW 4.50 4.37 4.24 4.21 4.58 4.49 4.37 4.34 4.70 4.59 4.47 4.44
95
TC 49.5 44.7 41.0 40.2 50.4 46.0 42.2 41.4 51.3 46.7 43.0 42.5
SHC 24.8 31.4 36.0 37.0 25.8 33.6 38.8 39.8 27.3 35.6 41.0 41.7
kW 4.77 4.61 4.46 4.43 4.85 4.73 4.59 4.56 4.98 4.83 4.70 4.68
105
TC 46.7 42.1 38.6 37.8 47.6 43.1 39.6 39.0 48.5 43.8 40.5 40.2
SHC 23.8 30.3 34.8 35.8 24.8 32.5 37.5 38.4 26.4 34.5 39.4 39.9
kW 5.02 4.84 4.68 4.64 5.10 4.96 4.80 4.77 5.23 5.07 4.92 4.91
115
TC 43.8 39.3 36.1 35.5 44.6 40.3 37.1 36.7 45.5 40.9 38.1 37.9
SHC 22.8 29.3 33.6 34.3 23.8 31.4 36.1 36.7 25.5 33.4 37.6 37.9
kW 5.25 5.06 4.88 4.85 5.34 5.18 5.01 4.99 5.47 5.29 5.14 5.13
LEGEND
BF — Bypass Factor
Edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW — Total Unit Power Input
Ldb — Leaving Dry-Bulb
Lwb — Leaving Wet-Bulb
SHC — Sensible Heat Capacity (1000 Btuh) Net
TC — Total Capacity (1000 Btuh) Net
*At 75 F entering dry bulb (Tennessee Valley Authority [TVA] rating conditions); all
others at 80 F entering dry bulb.
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
t=t −
ldb edb
1.10 x cfm
t = Wet-bulb temperature corresponding to enthalpy of air leaving
lwb
evaporator coil (h )
lwb
total capacity (Btuh)
h=h −
lwb ewb
4.5 x cfm
Where: h = Enthalpy of air entering evaporator coil
ewb
3. The SHC is based on 80 F edb temperature of air entering evaporator coil.
Below 80 F edb, subtract (corr factor x cfm) from SHC.
Above 80 F edb, add (corr factor x cfm) to SHC.
Correction Factor = 1.10 x (1 − BF) x (edb − 80).
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