Performance data, Cooling capacities – Bryant 581C User Manual
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PERFORMANCE DATA — 581C
COOLING CAPACITIES — 581C024-060 STANDARD UNITS
581C024 (2 Tons)
Temp (F)
Air Entering Evaporator -- CFM/BF
Air Ent
600/0.12
800/0.14
1000/0.18
Condenser
Air Entering Evaporator -- Ewb (F)
(Edb)
57
62
67
72
57
62
67
72
57
62
67
72
75
TCG
22.6
24.3
26.7
29
25
25.7
28.1
30.2
26.6
26.8
29
30.9
SHG
21.7
19.5
16.4
13
24
22.9
18.6
14.1
25.6
25.4
20.6
15.1
CMP
1.18
1.19
1.2
1.21
1.19
1.19
1.2
1.21
1.19
1.2
1.21
1.22
85
TCG
21.3
23
25.7
28
24.2
24.7
27.2
29.6
25.9
25.9
27.9
30.2
SHG
20.5
19
16
12.7
23.3
22.4
18.4
14.1
24.9
24.9
20.3
15.1
CMP
1.36
1.37
1.38
1.39
1.38
1.38
1.39
1.4
1.38
1.38
1.39
1.4
95
TCG
19.9
21
24.7
27.2
23.1
23.3
26
28.6
25
24.9
26.9
29.3
SHG
19.1
18.2
15.7
12.4
22.2
21.9
18.1
13.9
24
24
20.2
15.1
CMP
1.56
1.57
1.59
1.6
1.58
1.58
1.59
1.61
1.59
1.59
1.6
1.61
105
TCG
18.4
18.8
23.2
26
21.3
21.3
24.8
27.4
23.9
23.9
25.6
28.2
SHG
17.7
17.3
15.1
12
20.5
20.5
17.7
13.5
23
23
19.9
14.8
CMP
1.78
1.78
1.81
1.82
1.8
1.8
1.82
1.83
1.81
1.81
1.82
1.84
115
TCG
16.6
16.5
20.5
24.7
19.7
19.7
22.4
26
22
22
24.1
26.7
SHG
16
15.9
14.1
11.6
19
19
16.9
13.1
21.1
21.1
19.5
14.5
CMP
2.01
2.01
2.05
2.08
2.05
2.05
2.06
2.08
2.06
2.06
2.07
2.09
125
TCG
15
15
17.7
22.2
17.7
17.7
19.6
24.4
19.7
19.8
20.5
25.2
SHG
14.5
14.5
13.2
10.8
17
17
16
12.7
19
19
18.3
14.1
CMP
2.27
2.27
2.3
2.34
2.3
2.3
2.32
2.35
2.32
2.32
2.33
2.36
581C036 (3 Tons)
Temp (F)
Air Entering Evaporator -- CFM/BF
Air Ent
900/0.10
1200/0.13
1500/0.16
Condenser
Air Entering Evaporator -- Ewb (F)
(Edb)
57
62
67
72
57
62
67
72
57
62
67
72
75
TCG
32
34.5
38.9
42.8
35.1
37.1
40.9
44.9
38.1
38.5
42.2
45.9
SHG
32
28.9
25
20.4
35.1
33.6
28.3
22.3
38.1
37.4
31.2
23.9
CMP
1.94
1.96
1.98
2
1.96
1.97
1.99
2.01
1.98
1.98
2
2.02
85
TCG
30.9
33.2
37.5
41.4
33.8
34.9
39.4
43.3
36.9
37
40.5
44.3
SHG
30.9
28.3
24.5
19.8
33.8
32.5
27.8
21.8
36.9
36.7
30.7
23.3
CMP
2.19
2.21
2.24
2.26
2.22
2.23
2.25
2.27
2.24
2.24
2.26
2.28
95
TCG
29.5
31.4
35.4
39.7
31.8
32.3
37.7
41.5
35.1
35.2
38.8
42.5
SHG
29.5
27.3
23.6
19.2
31.8
31.2
27.2
21.2
35
35.2
30
22.8
CMP
2.47
2.49
2.52
2.54
2.5
2.51
2.54
2.56
2.53
2.53
2.54
2.56
105
TCG
28
29.5
33
38
29.5
29.5
34.7
39.7
32.3
32.2
36.8
40.8
SHG
28
26.4
22.6
18.6
29.4
29.4
26
20.7
32.3
32.2
29.5
22.5
CMP
2.78
2.79
2.83
2.86
2.81
2.81
2.85
2.87
2.84
2.84
2.86
2.88
115
TCG
26.3
27.1
30.7
35.2
27.6
27.6
31.1
37.6
29.6
29.5
32.9
38.5
SHG
26.3
25.3
21.7
17.7
27.6
27.6
24.5
20
29.6
29.5
27.8
21.9
CMP
3.1
3.11
3.16
3.2
3.15
3.15
3.18
3.22
3.17
3.17
3.2
3.23
125
TCG
24.4
24.7
28.1
32.1
25.5
25.5
27.5
33.7
27
27
28.5
35.8
SHG
24.4
24.1
20.7
16.6
25.5
25.4
22.9
18.8
27
27
26
21.2
CMP
3.45
3.46
3.51
3.56
3.51
3.51
3.53
3.59
3.53
3.53
3.55
3.6
LEGEND
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
Where: h
ewb
= Enthalpy of air entering evaporator coil.
3. The SHC is based on 80 F edb temperature of air entering evapora
tor 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)
BF
— Bypass Factor
Edb
— Entering Dry Bulb
Ewb
— Entering Wet Bulb
COMP — Compressor Power kw
SHG
— Gross Sensible Capacity (1000 Btuh)
TCG
— Compressor Cooling Capicity (1000 Btuh)
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