Bryant 580D User Manual
Page 28
PERFORMANCE DATA (cont)
COOLING CAPACITIES (cont)
580D120 (10 TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Air Entering Evaporator — Cfm/BF
3000/0.095
4000/0.125
5000/0.15
Air Entering Evaporator — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
135.8
124.8
112.0
142.4
130.6
119.8
146.5
134.2
123.7
SHC
66.8
82.6
97.4
73.2
93.4
112.7
79.7
104.4
123.1
kW
9.76
9.41
9.10
10.00
9.61
9.27
10.17
9.75
9.41
85
TC
130.0
119.6
104.0
136.0
125.0
114.5
140.0
127.9
118.8
SHC
64.3
80.5
93.8
71.1
91.7
110.2
77.5
101.8
118.7
kW
10.41
10.07
9.74
10.67
10.28
9.94
10.84
10.41
10.09
95
TC
124.1
113.7
96.7
129.5
118.9
106.9
132.8
122.0
114.1
SHC
62.2
78.4
90.0
69.1
89.8
105.9
74.9
100.1
114.0
kW
11.13
10.78
10.40
11.38
10.99
10.63
11.52
11.14
10.83
105
TC
118.1
104.6
87.9
122.7
111.8
98.5
126.0
115.1
108.0
SHC
60.4
74.9
85.2
66.9
87.7
98.5
73.1
98.3
108.0
kW
11.93
11.52
11.10
12.13
11.74
11.41
12.27
11.89
11.65
115
TC
115.0
98.0
84.2
120.0
103.8
93.4
122.6
109.8
102.8
SHC
59.4
72.4
83.4
66.4
84.8
93.4
72.8
96.9
102.8
kW
12.26
11.82
11.40
12.48
12.06
11.78
12.60
12.20
12.00
580D150 (12
1
⁄
2
TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Air Entering Evaporator — Cfm/BF
3750/0.08
4500/0.09
5000/0.10
6250/0.12
Air Entering Evaporator — Ewb (F)
72
67
62
72
67
62
72
67
62
72
67
62
75
TC
175.6
162.2
149.2
181.0
167.5
154.2
182.9
170.2
156.4
187.2
174.7
161.8
SHC
85.7
107.3
128.0
91.4
116.2
140.3
94.2
122.2
146.5
102.1
135.3
160.7
kW
11.16
10.85
10.57
11.32
11.00
10.69
11.37
11.07
10.73
11.49
11.19
10.87
85
TC
169.3
155.7
140.6
174.2
160.7
147.0
176.9
163.0
149.7
181.5
167.3
155.8
SHC
83.9
104.8
124.0
89.6
113.9
137.0
92.7
119.7
143.6
100.9
133.4
155.6
kW
12.15
11.78
11.42
12.31
11.94
11.58
12.39
12.01
11.63
12.53
12.14
11.82
95
TC
161.9
148.9
132.0
166.8
153.5
139.1
169.5
155.7
142.8
173.2
159.5
149.6
SHC
81.4
102.0
119.8
87.0
111.1
133.2
90.7
117.3
140.2
98.3
130.8
149.6
kW
13.12
12.72
12.28
13.30
12.89
12.46
13.40
12.97
12.56
13.54
13.11
12.78
105
TC
154.9
141.3
123.0
158.8
145.4
130.2
160.9
147.6
135.0
165.3
151.2
143.2
SHC
79.0
99.2
115.5
84.5
108.2
128.1
87.8
114.3
134.9
96.6
127.8
143.1
kW
14.16
13.66
13.17
14.31
13.82
13.35
14.38
13.91
13.48
14.58
14.07
13.77
115
TC
146.2
132.2
113.1
150.5
137.0
122.4
152.3
139.4
127.8
155.2
142.7
136.0
SHC
76.1
95.7
110.3
81.7
105.2
122.3
85.0
111.6
127.7
92.9
125.0
135.8
kW
15.09
14.57
14.07
15.30
14.76
14.25
15.37
14.87
14.43
15.49
15.02
14.73
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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