Bryant 580D User Manual
Page 27
PERFORMANCE DATA (cont)
COOLING CAPACITIES (cont)
580D090 (7
1
⁄
2
TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Air Entering Evaporator — Cfm/BF
2250/0.07
2800/0.09
3000/0.10
3750/0.12
Air Entering Evaporator — Ewb (F)
72
67
62
72
67
62
72
67
62
72
67
62
75
TC
102.8 94.8 86.2 105.8 98.2 90.0 106.4 99.0 90.8 109.2 101.6 93.6
SHC
49.4 61.8 73.2
52.6 67.8 81.6
53.6 69.8 84.0
58.2
77.4 92.2
kW
7.14 6.82 6.50
7.28 6.98 6.68
7.32 7.04 6.72
7.46
7.18 6.86
85
TC
98.2 90.2 81.6 101.8 93.6 85.2 102.6 94.4 86.0 104.6
96.8 89.6
SHC
48.0 60.2 71.2
51.6 66.4 79.6
52.8 68.6 82.0
56.8
76.0 89.4
kW
7.66 7.34 7.00
7.82 7.50 7.18
7.86 7.54 7.22
7.98
7.68 7.40
95
TC
93.8 85.2 76.6
97.0 88.4 80.0
97.6 89.0 81.2
99.4
91.2 85.2
SHC
46.4 58.2 68.8
50.2 64.6 77.2
51.4 66.8 79.0
55.6
74.4 85.2
kW
8.18 7.84 7.48
8.36 8.00 7.64
8.40 8.04 7.70
8.50
8.16 7.92
105
TC
88.4 79.8 70.8
91.0 82.8 74.6
91.6 83.4 76.0
93.8
85.4 80.6
SHC
44.6 56.2 66.0
48.2 62.6 74.2
49.4 64.8 75.6
54.2
72.4 80.6
kW
8.68 8.30 7.98
8.80 8.46 8.14
8.86 8.50 8.20
8.98
8.64 8.42
115
TC
82.8 73.8 66.0
85.2 76.8 69.6
85.6 77.4 71.0
87.6
79.4 76.0
SHC
42.6 53.8 63.2
46.4 60.4 69.6
47.8 62.6 71.0
52.8
70.4 75.8
kW
9.16 8.78 8.42
9.30 8.92 8.64
9.34 8.96 8.72
9.48
9.10 8.94
580D102 (8
1
⁄
2
TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Air Entering Evaporator — Cfm/BF
2550/0.08
3000/0.10
3400/0.11
4250/0.135
Air Entering Evaporator — Ewb (F)
72
67
62
72
67
62
72
67
62
72
67
62
75
TC
116.6 108.4 99.0 119.2 111.3 101.8 120.1 112.8 103.6 122.3 114.8 106.3
SHC
71.9
61.9 75.9
75.2
65.1
81.4
80.5
68.0
85.6
32.7
73.9
94.4
kW
7.77
7.57 7.38
7.86 10.68
7.44
7.89
6.72
7.51
7.97
7.80
7.60
85
TC
113.3 104.2 94.0 115.7 106.9
97.0 117.2 108.7
98.8 120.1 111.0 101.8
SHC
54.0
67.7 80.4
56.3
72.5
87.1
58.2
76.4
92.5
62.9
84.2 101.0
kW
8.46
8.22 7.96
5.54
8.31
8.04
8.60
8.38
8.12
8.72
8.48
8.23
95
TC
109.1
99.3 87.3 111.2 102.0
91.4 112.5 103.6
93.7 115.3 105.8 107.4
SHC
52.6
65.9 77.4
55.0
70.9
84.9
57.1
75.1
90.3
62.2
83.2
97.3
kW
8.90
8.97 8.68
8.99
9.06
8.79
9.06
9.12
8.86
4.76
9.24
9.00
105
TC
103.3
94.0 81.4 105.9
96.3
84.6 107.4
97.7
87.9 109.4
99.9
92.8
SHC
50.5
54.0 74.5
53.5
69.1
81.4
55.8
73.1
86.6
60.4
81.4
92.8
kW
9.74
9.43 9.08
9.85
9.54
9.21
9.92
9.60
9.29 10.03
9.72
9.48
115
TC
97.7
87.9 75.9
99.9
90.4
78.8 101.3
91.8
82.4 102.9
93.8
88.3
SHC
48.7
61.7 71.9
51.8
66.9
78.1
54.0
71.2
82.3
58.5
79.4
88.2
kW
10.33
9.97 9.61 10.46 10.10
9.75 10.54 10.18
9.88 10.61 10.30 10.10
Standard Ratings
LEGEND
BF
— Bypass Factor
Edb
— Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW
— Compressor Motor Power Input
Ldb
— Leaving Dry-Bulb
Lwb — Leaving Wet-Bulb
SHC — Sensible Heat Capacity (1000 Btuh) Gross
TC
— Total Capacity (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
tldb = tedb −
1.10 x cfm
tlwb = Wet-bulb temperature corresponding to enthalpy of air leav-
ing evaporator coil (hlwb)
total capacity (Btuh)
hlwb = hewb −
4.5 x cfm
Where: hewb = Enthalpy of air entering evaporator coil
3. The SHC is based on 80 F edb temperature of air entering evapo-
rator 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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