Bryant LEGACY 580J User Manual
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Table 10 – COOLING CAPACITIES
2--Stage Cooling
15 TONS (con’t)
580J017 (15 TONS) --- UNIT WITH PERFECT HUMIDITY IN SUBCOOLING MODE
Temp (F) Air Ent
Condenser (Edb)
AIR ENTERING EVAPORATOR --- CFM/BF
4,500
6,000
7,500
Air Entering Evaporator --- --- Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
208.5
190.6
172.6
229.2
208.6
188.1
247.8
224.9
202.0
SHC
94.0
114.5
135.0
104.5
125.2
145.9
113.0
133.8
154.6
kW
13.42
13.05
12.70
13.60
13.21
12.80
13.82
13.36
13.15
85
TC
198.3
180.7
163.0
214.9
194.8
174.6
229.8
207.4
185.1
SHC
74.1
99.6
125.1
85.2
110.9
136.7
94.1
120.0
145.9
kW
14.79
14.42
14.10
14.97
14.58
14.20
15.19
14.73
14.51
95
TC
188.2
170.8
153.4
200.6
180.9
161.1
211.9
190.0
168.1
SHC
54.4
84.8
115.3
65.9
96.7
127.5
75.1
106.2
137.2
kW
16.23
15.86
15.50
16.41
16.02
15.60
16.63
16.17
15.95
105
TC
178.1
160.9
143.8
186.4
167.0
147.7
193.9
172.5
151.2
SHC
34.6
70.0
105.4
46.5
82.4
118.2
56.1
92.3
128.5
kW
17.47
17.10
16.80
17.65
17.26
16.90
17.87
17.41
17.25
115
TC
167.9
151.1
134.2
172.1
153.2
134.2
175.9
155.1
134.5
SHC
14.8
55.2
95.6
27.2
68.1
109.0
37.1
78.5
119.8
kW
18.87
18.50
18.20
19.05
18.66
18.30
19.27
18.81
18.55
580J017 (15 TONS) --- UNIT WITH PERFECT HUMIDITY IN HOT GAS REHEAT MODE
Temp (F) Air Ent
Condenser (Edb)
AIR ENTERING EVAPORATOR --- Ewb (F)
75 Dry Bulb
75 Dry Bulb
75 Dry Bulb
62.5 Wet Bulb
64 Wet Bulb
65.3 Wet Bulb
(50% Relative)
(56% Relative)
(60% Relative)
Air Entering Evaporator --- Cfm
4,500
6,000
7,500
4,500
6,000
7,500
4,500
6,000
7,500
80
TC
80.10
85.50
91.30
82.70
90.90
97.10
86.00
95.40
100.50
SHC
12.70
22.30
34.20
5.10
12.10
21.20
---2.10
4.20
10.50
kW
12.44
12.67
12.78
12.55
12.88
13.10
12.65
13.02
13.12
75
TC
82.30
87.60
93.40
84.70
93.00
99.20
88.10
97.30
102.50
SHC
14.30
24.20
36.00
6.70
13.70
23.10
---0.50
5.80
12.60
kW
12.38
12.62
12.73
12.50
12.83
13.05
12.62
12.98
13.07
70
TC
84.40
89.60
94.70
87.00
95.10
101.30
90.30
99.50
104.60
SHC
16.10
25.70
37.30
8.20
15.80
24.50
1.10
7.50
13.70
kW
12.34
12.58
12.69
12.47
12.78
13.03
12.59
12.93
13.02
60
TC
88.50
93.90
99.80
91.20
99.40
105.50
94.40
103.70
108.90
SHC
19.40
29.20
40.70
11.50
18.60
27.80
4.60
10.50
16.90
kW
12.28
12.52
12.63
12.41
12.73
12.97
12.53
12.84
12.94
50
TC
92.80
98.10
104.80
95.40
103.60
110.50
98.80
108.00
113.90
SHC
22.70
32.20
43.80
14.80
22.10
31.30
7.70
13.90
20.50
kW
12.21
12.45
12.56
12.34
12.68
12.91
12.46
12.75
12.85
40
TC
97.10
102.50
108.50
99.60
108.00
114.30
103.00
112.40
117.70
SHC
26.00
35.40
46.90
17.90
25.30
34.40
10.80
17.10
23.80
kW
12.14
12.38
12.49
12.27
12.60
12.84
12.40
12.70
12.80
LEGEND
Edb --- Entering Dry---Bulb
Ewb --- Entering Wet---Bulb
kW
--- Compressor Motor Power Input
Idb
--- Leaving Dry---Bulb
Iwb --- 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:
t
ldb
= t
edb
–
sensible capacity (Btuh)
1.10 x cfm
t
lwb
= Wet---bulb temperature corresponding to enthalpy of air
leaving evaporator coil (h
lwb
)
h
lwb
= h
ewb
–
total capacity (Btuh)
4.5 x cfm
Where: h
ewb
= Enthalpy of air entering evaporator coil
580J