Bryant Legacy Line Series Manual page 23

582J*04G (3 TONS) - UNIT WITH PERFECT HUMIDITY SYSTEM IN HOT GAS REHEAT MODE
TEMP (F) AIR ENT
CONDENSER (Edb)
TC
80 SHC
kW
TC
75 SHC
kW
TC
70 SHC
kW
TC
60 SHC
kW
TC
50 SHC
kW
TC
40 SHC
kW
LEGEND
Edb — Entering dry-bulb
Ewb — Entering wet-bulb
kW — Compressor motor power input
Ldb — Leaving dry-bulb
Lwb — Leaving wet-bulb
SHC — Sensible capacity (1000 Btuh) gross
TC — Total capacity (1000 Btuh) gross
COOLING CAPACITIES (1 STAGE-COOLING) 3 TONS (cont)
75 Dry Bulb
62.5 Wet Bulb
(50%Relative)
900 1200 1500
12.26 13.13 13.65
1.76 3.87 6.09
1.92 1.93 1.94
14.64 15.64 16.30
3.87 6.09 8.38
1.87 1.88 1.88
16.72 17.62 18.01
5.89 7.85 9.40
1.78 1.80 1.82
17.43 18.50 18.28
7.75 10.06 9.51
1.66 1.62 1.70
17.82 18.59 19.72
6.40 7.99 10.05
1.98 2.03 1.94
17.70 19.38 19.85
6.30 8.74 10.17
2.07 1.95 1.99
AIR ENTERING EVAPORATOR - Ewb (F)
75 Dry Bulb
64 Wet Bulb
(56% Relative)
Air Entering Evaporator - cfm
900 1200
13.53 14.48
0.75 2.48
1.96 1.98
15.84 16.73
2.88 4.59
1.89 1.90
17.42 18.17
4.65 6.08
1.81 1.83
18.09 19.03
7.08 8.34
1.67 1.69
18.31 19.73
4.79 6.71
2.01 1.94
19.10 20.30
5.54 7.26
1.93 1.91
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
t
ldb
t = Wet-bulb temperature corresponding to enthalpy of air leaving evapora-
ldb
tor coil (h )
lwb
h
lwb
Where h = Enthalpy of air entering evaporator coil
ewb
75 Dry Bulb
65.3 Wet Bulb
(60% Relative)
1500 900 1200
15.00 14.73 15.63
4.33 -0.06 1.30
2.00 2.00 2.01
17.32 16.80 17.38
6.29 2.03 3.14
1.91 1.91 1.92
18.62 18.02 18.69
7.35 3.71 5.09
1.84 1.82 1.82
19.41 18.32 18.29
9.60 6.29 6.94
1.68 1.69 1.70
20.26 18.76 20.21
7.97 3.40 5.11
1.97 2.03 1.96
20.34 19.53 20.76
8.05 4.13 5.64
2.02 1.96 1.94
= t – sensible capacity (Btuh)
edb
1.10 x cfm
= h – total capacity (Btuh)
ewb
4.5 x cfm
1500
16.20
2.81
2.02
17.91
4.39
1.93
18.87
5.59
1.86
19.33
7.88
1.71
20.73
6.16
1.99
21.26
6.67
1.97
23