COOLING CAPACITIES (cont)
48SS048
TEMP (F)
AIR ENT
COND
EVAP AIR — CFM/BF
1400/0.08 1600/0.10 1800/0.11
Evap Air — Ewb (F)
62 67 72 62 67 72 62 67 72
85
TC 43.8 48.3 52.9 44.5 49.1 53.7 45.1 49.6 53.9
SHC 39.4 32.7 25.6 41.9 34.6 26.4 44.1 36.4 27.1
kW 4.76 4.85 4.95 4.87 4.97 5.07 4.99 5.08 5.17
95
TC 41.9 46.4 50.9 42.6 47.0 51.7 43.3 47.5 52.2
SHC 38.6 32.1 24.8 41.1 33.9 25.9 43.1 35.9 26.8
kW 5.17 5.28 5.38 5.29 5.40 5.50 5.41 5.51 5.61
105
TC 39.3 44.2 48.8 40.1 44.7 49.2 41.2 45.2 49.6
SHC 37.3 31.2 24.1 39.7 33.1 25.1 41.2 35.1 26.0
kW 5.61 5.73 5.83 5.74 5.85 5.95 5.87 5.96 6.06
115
TC 36.6 41.5 46.4 37.7 42.4 47.0 39.0 42.8 47.4
SHC 35.9 30.2 23.4 37.6 32.4 24.3 39.0 34.2 25.4
kW 6.08 6.22 6.34 6.22 6.34 6.45 6.36 6.46 6.57
48SS060
TEMP (F)
AIR ENT
COND
EVAP AIR — CFM/BF
1750/0.03 2000/0.04 2250/0.05
Evap Air — Ewb (F)
62 67 72 62 67 72 62 67 72
85
TC 55.0 62.0 69.4 56.3 63.1 70.5 58.2 63.9 71.3
SHC 52.4 43.7 34.2 56.1 46.7 35.8 58.1 49.5 37.4
kW 6.14 6.33 6.53 6.32 6.50 6.70 6.52 6.67 6.88
95
TC 51.8 58.8 66.2 53.6 59.6 67.3 55.6 60.2 68.1
SHC 51.0 42.4 33.2 53.5 45.3 34.8 55.6 48.2 36.3
kW 6.62 6.82 7.05 6.83 7.00 7.22 7.03 7.17 7.39
105
TC 48.7 55.1 62.9 51.0 56.0 63.9 53.0 56.7 64.5
SHC 48.7 41.1 32.1 50.9 44.0 33.7 52.8 46.9 35.3
kW 7.17 7.37 7.60 7.39 7.54 7.78 7.59 7.71 7.95
115
TC 45.8 52.0 59.5 48.5 52.8 60.5 50.4 53.4 60.8
SHC 45.8 40.0 30.9 48.4 42.8 32.6 50.3 45.6 34.1
kW 7.77 7.94 8.19 7.98 8.12 8.36 8.18 8.29 8.43
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
TC — Total Cooling Capacity, 1000 Btuh (net)
NOTES:
1. Ratings are net; they account for the effects of the indoor-fan motor
power and heat.
2. Direct interpolation is permissible. Do not extrapolate.
3. 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
lwb
leaving indoor coil (h )
lwb
total capacity (Btuh)
h=h –
lwb ewb
4.5 x cfm
Where: h = Enthalpy of air entering indoor coil
ewb
4. The SHC is based on 80 F edb temperature of air entering indoor
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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