Bryant LEGACY LINE 580J User Manual
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Table 16 – COOLING CAPACITIES
1--STAGE COOLING
4 TONS
580J05 (4 TONS) --- UNIT WITH PERFECT HUMIDITY SYSTEM IN SUBCOOLING MODE
Air Entering Evaporator --- CFM
Temp (F) Air Ent
Condenser (Edb)
80 dry bulb
80 dry bulb
80 dry bulb
72 wet bulb
67 wet bulb
62 wet bulb
1200
1600
2000
1200
1600
2000
1200
1600
2000
75
TC
52.5
55.9
58.6
47.1
50.2
52.7
41.7
44.5
46.8
SHC
22.6
25.5
27.8
27.1
29.9
32.0
31.6
34.2
36.2
kW
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
85
TC
48.7
52.2
54.9
43.4
46.5
49.0
38.0
40.8
43.1
SHC
18.0
21.3
23.9
23.6
26.8
29.2
29.3
32.2
34.4
kW
2.9
2.9
2.9
2.9
2.9
2.9
2.9
2.9
2.9
95
TC
44.9
48.4
51.2
39.6
42.8
45.3
34.3
37.1
39.4
SHC
13.4
17.2
20.0
20.2
23.7
26.4
27.0
30.2
32.7
kW
3.4
3.4
3.4
3.3
3.3
3.3
3.3
3.3
3.3
105
TC
41.1
44.7
47.5
35.9
39.1
41.7
30.6
33.5
35.8
SHC
8.8
13.0
16.1
16.7
20.6
23.6
24.6
28.2
31.0
kW
3.8
3.8
3.8
3.7
3.7
3.7
3.7
3.7
3.7
115
TC
37.4
41.0
43.9
32.1
35.4
38.0
26.8
29.8
32.1
SHC
4.3
8.8
12.2
13.3
17.5
20.7
22.3
26.2
29.2
kW
4.2
4.2
4.2
4.2
4.2
4.2
4.1
4.1
4.1
580J05 (4 TONS) --- UNIT WITH PERFECT HUMIDITY SYSTEM IN HOT GAS REHEAT MODE
Air Entering Evaporator --- CFM
Temp (F) Air Ent
Condenser (Edb)
75 dry bulb
75 dry bulb
75 dry bulb
62.5 wet bulb (50% relative)
64 wet bulb (55% relative)
65.3 wet bulb (60% relative)
1200
1600
2000
1200
1600
2000
1200
1600
2000
80
TC
11.6
13.8
15.5
13.5
15.8
17.6
15.2
17.5
19.3
SHC
---1.0
1.2
3.0
---3.1
---0.8
0.9
---4.8
---2.6
---0.9
kW
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
75
TC
12.5
14.6
16.2
14.3
16.4
18.1
15.9
18.1
19.8
SHC
---0.7
1.4
3.0
---2.7
---0.6
1.1
---4.3
---2.2
---0.6
kW
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
70
TC
13.4
15.3
16.8
15.1
17.1
18.7
16.6
18.7
20.3
SHC
---0.5
1.5
3.0
---2.3
---0.3
1.2
---3.8
---1.9
---0.3
kW
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
60
TC
15.1
16.8
18.1
16.7
18.4
19.8
18.1
19.9
21.2
SHC
0.0
1.7
3.1
---1.5
0.2
1.5
---2.8
---1.1
0.2
kW
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
50
TC
16.9
18.3
19.4
18.3
19.8
20.9
19.6
21.0
22.2
SHC
0.6
2.0
3.1
---0.7
0.7
1.8
---1.8
---0.4
0.7
kW
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
40
TC
18.7
19.8
20.7
19.9
21.1
22.0
21.0
22.2
23.2
SHC
1.1
2.2
3.1
0.1
1.2
2.1
---0.8
0.4
1.3
kW
2.6
2.6
2.6
2.7
2.7
2.7
2.7
2.7
2.7
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