Cooling capacities – Bryant 549B User Manual
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82
PERFORMANCE DATA — 549B, 549C
COOLING CAPACITIES
549B036 (3 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/BF
900/0.12
1200/0.15
1500/0.18
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
41.2
37.8
34.4
42.9
39.6
36.3
43.6
40.6
37.5
SHC
19.8
24.5
28.8
21.5
27.6
32.9
22.5
30.1
36.3
kW
2.11
2.08
2.05
2.12
2.10
2.07
2.12
2.10
2.08
85
TC
39.9
36.5
33.1
41.9
38.2
34.9
42.5
39.2
36.1
SHC
19.4
24.0
28.2
21.2
27.2
32.4
22.6
29.8
35.9
kW
2.36
2.34
2.31
2.38
2.35
2.33
2.38
2.36
2.35
95
TC
38.6
35.0
31.7
40.4
36.7
33.4
41.3
37.6
34.8
SHC
18.9
23.4
27.4
20.8
26.6
31.6
22.4
29.2
34.7
kW
2.65
2.62
2.58
2.66
2.63
2.61
2.67
2.64
2.63
105
TC
37.1
33.2
30.0
38.7
35.0
31.5
39.3
36.0
33.2
SHC
18.3
22.7
26.6
20.3
26.1
30.7
21.7
29.0
33.2
kW
2.96
2.92
2.88
2.98
2.95
2.90
2.97
2.96
2.93
115
TC
35.1
31.4
28.0
36.7
32.8
29.7
37.7
33.8
31.6
SHC
17.6
21.9
25.6
19.7
25.2
29.6
21.5
28.1
31.6
kW
3.29
3.25
3.20
3.31
3.27
3.23
3.32
3.29
3.26
125
TC
33.0
29.0
25.7
34.4
30.6
27.8
35.4
31.5
29.8
SHC
16.9
21.0
24.5
19.0
24.3
27.8
20.9
27.1
29.7
kW
3.65
3.59
3.53
3.68
3.62
3.57
3.69
3.64
3.61
549B048 (4 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/BF
1200/0.1
1600/0.12
2000/0.15
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
51.0
48.9
43.9
52.3
50.2
46.0
53.7
51.5
48.1
SHC
24.1
33.1
40.3
26.0
37.0
44.2
27.8
40.9
48.0
kW
2.65
2.64
2.60
2.66
2.65
2.61
2.67
2.66
2.63
85
TC
48.9
47.1
41.9
50.7
48.4
44.2
52.6
49.8
46.6
SHC
22.9
32.2
40.2
25.4
36.4
43.4
27.9
40.6
46.6
kW
2.99
2.98
2.94
3.01
3.00
2.96
3.03
3.01
2.99
95
TC
47.1
45.1
39.2
49.0
46.3
42.1
50.8
47.6
44.9
SHC
22.3
31.5
39.2
24.9
35.6
42.1
27.4
39.8
44.9
kW
3.37
3.37
3.31
3.40
3.38
3.34
3.42
3.39
3.37
105
TC
44.9
42.9
37.5
46.8
44.1
40.3
48.7
45.4
43.2
SHC
21.3
30.7
37.5
24.1
34.8
40.3
26.9
39.0
43.1
kW
3.79
3.78
3.71
3.82
3.80
3.75
3.84
3.81
3.79
115
TC
42.9
40.8
35.2
44.6
41.9
38.3
46.3
43.0
41.3
SHC
20.4
30.1
35.2
23.3
34.0
38.3
26.1
37.9
41.3
kW
4.24
4.23
4.15
4.26
4.24
4.19
4.29
4.25
4.23
125
TC
40.9
38.2
32.9
42.2
39.3
36.1
43.5
40.5
39.3
SHC
19.8
29.1
32.9
22.4
33.0
36.1
25.1
36.9
39.3
kW
4.72
4.70
4.62
4.73
4.71
4.66
4.74
4.72
4.71
549B060 (5 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/BF
1500/0.17
1750/0.25
2000/0.31
2500/0.42
Indoor Entering Air — Ewb (F)
72
67
62
57
72
67
62
57
72
67
62
57
72
67
62
57
75
TC
70.2
65.3
59.9
56.6
71.7
66.8
61.9
59.7
72.8
67.8
63.4
62.4
74.1
69.9
65.8
65.8
SHC
31.6
40.6
49.2
54.1
33.3
43.5
53.8
57.0
34.8
46.0
57.8
59.6
37.5
51.8
62.9
62.9
kW
3.51
3.47
3.45
3.43
3.52
3.48
3.46
3.44
3.45
3.49
3.47
3.46
3.55
3.51
3.48
3.48
85
TC
68.7
63.3
57.4
54.2
70.3
65.1
59.3
57.8
71.8
66.3
60.9
60.5
73.2
68.5
64.5
64.4
SHC
31.3
40.0
48.3
51.8
33.1
43.2
52.8
55.2
34.9
46.2
56.8
57.7
38.0
52.5
61.6
61.5
kW
3.95
3.91
3.89
3.87
3.96
3.92
3.89
3.89
3.98
3.93
3.91
3.91
4.00
3.96
3.93
3.92
95
TC
66.7
60.6
52.0
50.1
68.4
62.4
55.5
54.7
69.1
63.8
58.2
58.2
71.2
65.6
62.2
62.2
SHC
30.7
39.1
46.2
47.8
32.7
42.5
51.3
52.3
34.2
45.8
55.5
55.5
38.0
51.6
59.4
59.4
kW
4.43
4.39
4.34
4.32
4.45
4.41
4.37
4.37
4.46
4.43
4.39
4.40
4.48
4.43
4.42
4.42
105
TC
63.7
55.4
45.8
45.8
65.6
58.6
50.2
50.1
66.9
60.5
53.3
53.6
68.2
62.4
59.5
59.5
SHC
29.8
37.4
43.5
43.7
31.9
41.3
47.9
47.9
33.9
44.8
50.9
51.2
37.3
51.1
56.8
56.8
kW
4.96
4.91
4.81
4.81
4.99
4.94
4.86
4.86
5.00
4.96
4.90
4.90
5.00
4.97
4.95
4.95
115
TC
60.2
47.9
41.2
41.2
62.0
50.9
45.2
45.2
63.3
52.8
48.2
48.2
65.1
56.2
54.2
54.1
SHC
28.8
34.8
39.3
39.3
30.9
38.8
43.1
43.2
32.9
42.4
46.1
46.0
36.8
49.2
51.8
51.7
kW
5.55
5.43
5.33
5.33
5.57
5.46
5.40
5.40
5.58
5.49
5.44
5.44
5.59
5.53
5.50
5.50
Standard Ratings
LEGEND
NOTES:
1. Direct interpolation is permissible. Do not
extrapolate.
2. The following formulas may be used:
Where: h
ewb
= Enthalpy of air entering evapo-
rator coil
3. The SHC is based on 80 F edb temperature of
air entering evaporator 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).
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x
(edb – 80).
BF
— Bypass Factor
Edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW
— Compressor Motor Power Input
SHC — Sensible Heat Capacity (1000 Btuh) Gross
TC
— Total Capacity (1000 Btuh) Gross
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
BYPASS
FACTOR
(BF)
ENTERING AIR
DRY-BULB TEMP (F)
79
78
77
76
75
under
75
81
82
83
84
85
over
85
Correction Factor
.05
1.04 2.07 3.11 4.14 5.18
Use
formula
shown
below.
.10
.98 1.96 2.94 3.92 4.90
.20
.87 1.74 2.62 3.49 4.36
.30
.76 1.53 2.29 3.05 3.82
549B
, 549
C