Bryant 549B User Manual
Page 22
22
PERFORMANCE DATA — 548F (cont)
COOLING CAPACITIES (cont)
548F072 (6 TONS)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/BF
1800/0.10
2400/0.13
3000/0.19
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
81.1
77.6
72.1
84.0
80.3
75.2
84.2
81.1
77.8
SHC
36.2
46.9
57.0
39.1
52.4
65.4
40.8
56.2
72.2
kW
5.16
5.11
5.01
5.23
5.16
5.06
5.23
5.17
5.11
85
TC
80.7
75.8
70.0
83.9
79.3
73.4
84.1
80.8
76.2
SHC
36.1
46.5
56.4
39.7
52.9
65.2
41.6
58.3
71.9
kW
5.83
5.74
5.65
5.90
5.81
5.69
5.90
5.84
5.76
95
TC
79.3
73.0
67.3
82.0
76.7
70.8
83.0
79.1
73.5
SHC
35.8
45.4
55.3
39.3
52.3
64.3
42.2
58.9
69.7
kW
6.54
6.37
6.28
6.60
6.47
6.37
6.62
6.55
6.40
105
TC
76.0
70.6
64.3
79.6
73.4
67.9
80.7
75.5
71.3
SHC
34.6
44.8
54.1
38.8
51.2
62.9
42.0
57.6
67.8
kW
7.21
7.12
6.94
7.34
7.15
7.06
7.36
7.22
7.14
115
TC
72.7
67.5
61.1
75.8
70.6
64.7
77.9
71.8
68.5
SHC
33.6
43.7
52.7
37.6
50.7
60.9
41.5
56.4
65.2
kW
7.95
7.86
7.63
8.06
7.95
7.77
8.14
7.94
7.90
125
TC
70.1
63.9
57.6
71.8
66.9
61.6
73.5
68.6
65.4
SHC
32.9
42.4
51.2
36.4
49.5
58.4
40.2
56.1
62.3
kW
8.82
8.62
8.37
8.83
8.73
8.54
8.89
8.79
8.69
548F090 (7
1
/
2
TONS)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/BF
2250/0.04
3000/0.06
3200/0.08
3750/0.11
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
72
67
62
75
TC
109.8 101.4 92.2 116.2 107.0 98.0 117.6 108.8 100.2 118.8
110.4 102.4
SHC
44.2
57.4 69.4
49.6
66.0 82.0
51.8
69.8
87.0
54.0
74.0
92.0
kW
6.66
6.44
6.18
6.86
6.60
6.36
6.92
6.66
6.42
6.94
6.70
6.48
85
TC
105.2
96.4
87.0 111.4
102.2 92.6 113.0 104.0
95.0
114.6 105.8
97.6
SHC
42.8
55.6
67.6
48.4
65.0 80.0
50.8
69.0
84.4
53.4
73.8
88.8
kW
7.20
6.94
6.64
7.42
7.14
6.82
7.48
7.20
6.90
7.54
7.28
7.00
95
TC
100.6
91.0
82.0 105.6
96.2
87.4 107.2
98.0
89.8
108.6
99.6
92.8
SHC
41.6
54.0
65.8
47.0
63.2
77.8
49.4
67.4
81.4
52.0
72.2
84.6
kW
7.78
7.42
7.08
7.96
7.62
7.30
8.00
7.70
7.40
8.06
7.76
7.50
105
TC
94.8
85.4
76.8
99.8
90.2
82.2 101.4
91.6
85.0
103.2
93.2
88.0
SHC
40.0
52.2
63.8
45.6
61.6
74.6
48.2
65.8
77.6
51.2
70.4
80.4
kW
8.26
7.88
7.50
8.48
8.10
7.76
8.56
8.18
7.88
8.64
8.24
8.02
115
TC
88.8
79.9
71.4
93.4
84.0
77.6
94.8
85.4
80.0
96.0
86.6
83.0
SHC
38.4
50.4
61.6
44.2
59.8
70.6
46.6
64.0
73.2
49.4
68.6
75.8
kW
8.76
8.32
7.90
8.98
8.54
8.22
9.04
8.62
8.36
9.10
8.70
8.50
125
TC
82.6
73.8
65.8
86.6
77.4
74.4
88.0
78.8
75.0
89.2
80.0
77.6
SHC
36.8
48.6
59.2
42.2
57.8
66.2
45.2
62.0
68.6
48.2
66.6
71.0
kW
9.20
8.74
8.30
9.44
8.96
8.68
9.52
9.02
8.82
9.60
9.12
8.98
LEGEND
NOTES:
1. Direct interpolation is permissible. Do
not extrapolate.
2. The following formulas may be used:
t
lwb
= Wet-bulb temperature corre-
sponding to enthalpy of air
leaving indoor coil (h
lwb
)
Where: h
ewb
= Enthalpy of air enter-
ing evaporator coil
3. The SHC is based on 80 F edb tem-
perature of air entering indoor coil.
Below 80 F edb, subtract (corr factor
x cfm) from SHC.
Above 80 F edb, add (corr factor x
cfm) to SHC.
BF
— Bypass Factor
Edb — Entering Dry-Bulb
Ewb — Entering Wet-Bulb
kW
— Compressor Motor Power Input
Ldb — Leaving Dry-Bulb
Lwb — Leaving Wet-Bulb
SHC — Sensible Heat Capacity
(1000 Btuh) Gross
TC
— Total Capacity (1000 Btuh) Gross
t
ldb
= t
edb
–
sensible capacity (Btuh)
1.10 x cfm
h
lwb
= h
ewb
–
total capacity (Btuh)
4.5 x cfm
548
F