75 performance data, Cooling capacities – Bryant 548F User Manual
Page 75
75
PERFORMANCE DATA
COOLING CAPACITIES
549B036 (3 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/Bf
900/0.13
1200/0.17
1500/0.19
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
41.7
38.4
34.1
43.2
40.3
37.3
44.4
41.4
36.8
SHC
20.3
25.0
29.0
21.9
28.0
33.7
23.2
30.6
36.8
kW
2.22
2.17
2.13
2.23
2.20
2.17
2.25
2.21
2.18
85
TC
40.5
37.2
32.4
42.1
39.0
36.0
43.1
40.2
37.2
SHC
19.9
24.6
28.1
21.6
27.8
33.2
23.1
30.5
36.3
kW
2.49
2.45
2.40
2.51
2.48
2.44
2.53
2.49
2.45
95
TC
39.1
35.9
30.6
40.8
37.6
33.9
42.0
38.7
35.8
SHC
19.4
24.1
27.2
21.2
27.4
32.2
23.0
30.2
35.8
kW
2.80
2.75
2.69
2.82
2.78
2.74
2.85
2.80
2.76
105
TC
37.6
33.9
28.8
39.2
36.0
32.3
40.1
37.0
34.6
SHC
18.8
23.3
26.3
20.8
26.8
31.4
22.3
29.7
34.5
kW
3.13
3.08
3.01
3.16
3.11
3.06
3.18
3.13
3.09
115
TC
35.9
31.9
27.9
37.4
34.2
30.2
38.3
35.3
32.5
SHC
18.2
22.5
25.8
20.2
26.1
30.1
21.8
29.0
32.5
kW
3.49
3.43
3.36
3.52
3.47
3.40
3.54
3.50
3.45
125
TC
34.2
30.5
26.3
35.5
32.1
28.6
36.3
33.2
31.0
SHC
17.6
21.9
25.0
19.5
25.3
28.6
21.4
28.2
31.0
kW
3.88
3.81
3.74
3.91
3.85
3.79
3.92
3.88
3.84
549B048 (4 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/Bf
1200/0.13
1600/0.16
2000/0.19
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
53.1
48.7
45.0
55.6
49.6
46.7
56.1
50.7
48.4
SHC
25.1
30.7
36.7
27.3
32.6
40.5
28.2
35.1
44.6
kW
2.92
2.86
2.82
2.96
2.87
2.84
2.96
2.88
2.87
85
TC
51.9
47.3
43.7
53.9
49.1
45.6
54.4
50.2
46.9
SHC
24.9
30.2
36.2
26.7
33.4
40.4
27.7
36.1
44.2
kW
3.29
3.22
3.19
3.32
3.25
3.21
3.32
3.27
3.23
95
TC
50.5
45.5
42.1
51.8
47.4
44.0
52.3
47.4
44.6
SHC
24.3
29.5
35.6
26.0
32.8
39.9
27.0
34.3
42.4
kW
3.70
3.62
3.58
3.71
3.65
3.61
3.72
3.64
3.61
105
TC
48.2
43.7
40.5
50.0
45.3
42.2
50.8
46.3
43.2
SHC
23.6
28.9
35.1
25.7
32.0
39.5
27.2
34.8
42.4
kW
4.14
4.06
4.04
4.16
4.08
4.05
4.18
4.10
4.06
115
TC
45.1
42.1
38.2
46.4
43.5
39.9
46.0
44.4
41.3
SHC
22.1
28.7
34.0
23.6
31.9
38.6
23.8
34.4
41.3
kW
4.57
4.55
4.50
4.59
4.56
4.52
4.58
4.57
4.54
125
TC
43.2
39.5
36.1
43.9
41.2
37.7
44.9
41.8
39.6
SHC
21.7
27.7
33.0
23.0
31.3
37.6
24.5
33.9
39.6
kW
5.10
5.05
5.02
5.11
5.08
5.05
5.13
5.09
5.08
549B060 (5 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/Bf
1500/0.03
2000/0.05
2500/0.07
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
70.4
62.3
52.9
73.6
68.2
58.4
75.5
69.1
64.9
SHC
34.2
42.0
48.1
37.8
49.6
57.6
41.1
53.8
64.8
kW
3.75
3.73
3.58
3.80
3.80
3.69
3.83
3.74
3.75
85
TC
68.5
58.9
50.8
71.0
65.4
56.5
72.7
66.9
62.7
SHC
33.6
40.6
47.1
37.1
48.5
56.4
40.3
53.9
62.6
kW
4.20
4.16
4.03
4.24
4.23
4.12
4.27
4.20
4.17
95
TC
65.8
55.3
47.4
68.8
62.2
53.5
70.5
64.0
60.3
SHC
32.8
39.2
45.5
36.6
47.3
53.5
40.2
53.1
60.2
kW
4.69
4.63
4.49
4.75
4.70
4.60
4.78
4.68
4.67
105
TC
63.0
51.4
43.6
65.6
58.1
50.2
67.1
60.7
57.5
SHC
31.7
37.6
43.6
35.6
45.8
50.2
39.1
52.1
57.5
kW
5.22
5.13
5.00
5.27
5.21
5.12
5.30
5.22
5.20
115
TC
59.4
48.2
40.8
62.1
52.6
46.8
63.7
55.5
52.6
SHC
30.6
36.4
40.8
34.6
43.7
46.8
38.4
50.3
52.5
kW
5.83
5.70
5.59
5.87
5.77
5.70
5.89
5.81
5.77
125
TC
53.8
44.6
40.4
56.8
46.3
43.3
59.5
47.8
47.3
SHC
28.7
35.0
40.3
33.0
41.3
43.3
37.3
46.9
47.3
kW
6.44
6.30
6.21
6.50
6.36
6.32
6.54
6.40
6.39
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 evaporator
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.
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
50T
F
Q
0
04
-0
12
549
B0
36-
12
0