Bryant 548F User Manual
Page 27
27
PERFORMANCE DATA (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
548F102 (8
1
/
2
TONS)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/BF
2400/0.06
3200/0.09
3600/0.11
4000/0.14
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
72
67
62
75
TC
111.4 102.3 91.0 115.7 108.2 97.6 117.0 110.1 100.4 118.1 111.6 102.5
SHC
51.8
64.3 75.3
54.9
71.9 87.6
55.8
74.9
92.5
56.7
77.1
96.4
kW
8.64
8.48
8.23
9.32
9.18
8.95
9.73
9.61
9.30 10.19 10.12 9.72
85
TC
108.8 97.4
86.1 113.7 104.2 92.9 115.2 106.6 94.8 116.6 108.3 98.0
SHC
50.9 62.3
73.2
54.7
70.9 85.1
55.7
74.3 89.3
56.7
77.2 92.2
kW
9.27
9.09
8.76
9.98
9.79
9.40 10.40 10.24 9.83 10.88 10.74 10.20
95
TC
104.5 92.7
81.2 110.4 98.8
87.7 112.0 101.3 90.8 113.2 103.1 93.8
SHC
49.3 60.2
70.9
53.7 68.7
82.4
55.1
72.6 86.3
56.2
75.7 88.2
kW
9.90
9.56
9.22 10.64 10.39 9.88 11.07 10.86 10.25 11.55 11.36 10.67
105
TC
98.8
87.8
75.9 105.5 93.4
83.0 107.4 95.4
86.5 108.9 97.1
89.5
SHC
47.1
58.3
68.1
52.2 66.5
79.0
53.7 69.9
82.2
55.1 72.9
83.9
kW
10.37 10.08 9.70 11.26 10.90 10.33 11.71 11.34 10.73 12.20 11.82 11.24
115
TC
93.8
82.4
71.1
98.7
87.9
78.6 100.8 89.8
82.1 102.9 91.3
85.3
SHC
45.3
56.0
65.9
49.5
64.5
75.5
51.3 68.0
77.9
53.0 71.0
79.6
kW
10.99 10.56 10.13 11.72 11.39 10.79 12.16 11.86 11.24 12.76 12.38 11.76
125
TC
88.4
77.2
66.7
93.1
82.2
74.5
94.9
83.9
77.9
96.2
85.3
80.8
SHC
43.4
54.1
63.1
47.7
62.3
71.4
49.2
65.8
73.7
50.4
68.8
75.2
kW
11.52 11.03 10.56 12.33 11.87 11.30 12.78 12.33 11.75 13.29 12.81 12.27
LEGEND
NOTES:
1. Direct interpolation is permissible. Do not
extrapolate.
2. The following formulas may be used:
t
lwb
= Wet-bulb temperature corresponding
to enthalpy of air leaving indoor coil
(h
lwb
)
Where: h
ewb
= Enthalpy of air entering evap-
orator coil
3. The SHC is based on 80 F edb temperature
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.
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
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
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
50
TFQ
004
-0
12
54
8F0
3
6-
12
0