Bryant 588A - Net Cooling Capacities

NET COOLING CAPACITIES (cont)
588A060 (5 TONS)
Indoor
Coil Air
Outdoor Coil Entering-Air Temperature (F)
85 95 105 115
Cfm BF
Ewb
(F)
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Capacity
(Btuh x 1000)
Total
System
kW
Total Sensible Total Sensible Total Sensible Total Sensible
1750 0.03
72 69.4 34.2 6.53 66.2 33.2 7.05 62.9 32.1 7.60 59.5 30.9 8.19
67 62.0 43.7 6.33 58.8 42.4 6.82 55.1 41.1 7.37 52.0 40.0 7.94
62 55.0 52.4 6.14 51.8 51.0 6.62 48.7 48.7 7.17 45.8 45.8 7.77
2000 0.04
72 70.5 35.8 6.70 67.3 34.8 7.22 63.9 33.7 7.78 60.5 32.6 8.36
67 63.1 46.7 6.50 59.5 45.3 7.00 56.0 44.0 7.54 52.8 42.8 8.12
62 56.3 56.1 6.32 53.6 53.5 6.83 51.0 50.9 7.39 48.5 48.4 7.98
2250 0.05
72 71.3 37.4 6.88 68.1 36.3 7.39 64.5 35.3 7.95 60.8 34.1 8.53
67 63.9 49.5 6.67 60.2 48.2 7.17 56.7 46.9 7.71 53.4 45.6 8.29
62 58.2 58.1 6.52 55.6 55.6 7.03 53.0 52.8 7.59 50.4 50.3 8.18
LEGEND
BF — Bypass Factor
Ewb — Entering Wet-Bulb
SHC — Sensible Heat Capacity (1000 Btuh)
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 x 1000)
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 x 1000)
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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