76 performance data (cont), Cooling capacities (cont) – Bryant 548F User Manual
Page 76
76
PERFORMANCE DATA (cont)
COOLING CAPACITIES (cont)
549B072 (6 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/Bf
1800/0.06
2100/0.066
2400/0.071
3000/0.088
Indoor Entering Air — Ewb (F)
72
67
62
57
72
67
62
57
72
67
62
57
72
67
62
57
75
TC
83.2 77.6 71.6 67.9 84.7 79.8 73.6 71.5 85.9 81.0 75.0 74.3 88.4 82.9 78.4 78.3
SHC
39.7 50.4 60.6 66.6 41.6 54.3 65.9 70.1 43.4 57.6 70.6 72.8 47.2 63.9 76.9 76.8
kW
4.90 4.78 4.69 4.63 4.94 4.84 4.71 4.69 4.97 4.86 4.74 4.73 5.04 4.91 4.81 4.81
85
TC
81.5 75.5 69.0 64.8 83.2 77.3 71.1 69.4 84.5 78.5 72.7 72.2 86.2 80.8 76.5 76.5
SHC
39.2 49.8 59.6 63.6 41.4 53.5 65.0 68.0 43.3 56.9 69.7 70.8 47.1 64.1 75.0 75.0
kW
5.45 5.34 5.23 5.16 5.49 5.36 5.27 5.23 5.52 5.38 5.29 5.27 5.57 5.45 5.36 5.36
95
TC
78.8 72.5 64.1 61.8 80.9 74.5 67.0 66.1 82.0 76.0 69.9 69.9 83.7 78.1 74.2 74.1
SHC
38.4 48.6 57.4 60.6 40.8 52.6 63.2 64.8 42.8 56.4 68.3 68.5 46.8 63.7 72.7 72.7
kW
6.03 5.91 5.79 5.73 6.09 5.96 5.84 5.82 6.11 6.00 5.89 5.89 6.16 6.05 5.96 5.96
105
TC
76.2 69.5 58.6 57.8 77.9 71.3 63.4 63.1 79.3 72.7 67.2 67.2 81.1 74.5 71.3 71.2
SHC
37.6 47.4 55.0 56.6 39.9 51.4 61.4 61.9 42.2 55.3 65.9 65.9 46.5 62.5 69.9 69.9
kW
6.69 6.56 6.40 6.38 6.73 6.61 6.45 6.44 6.77 6.64 6.51 6.51 6.82 6.67 6.57 6.57
115
TC
72.5 65.1 54.8 54.7 74.3 67.8 58.6 58.6 75.6 69.1 63.2 63.2 77.3 70.9 68.4 68.4
SHC
36.3 45.8 53.2 53.6 38.7 50.2 57.4 57.5 41.1 54.0 62.0 62.0 45.5 61.3 67.1 67.1
kW
7.37 7.24 7.08 7.07 7.43 7.30 7.16 7.16 7.48 7.34 7.21 7.21 7.52 7.38 7.32 7.32
549B090 (7
1
/
2
Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/Bf
2250/0.12
3000/0.15
3750/0.18
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
97.6
92.5
84.3
100.8
95.6
89.9
101.6
97.8
91.7
SHC
47.7
61.0
72.7
51.5
67.3
83.8
55.0
74.4
89.7
kW
5.80
5.76
5.73
5.86
5.78
5.78
5.86
5.82
5.73
85
TC
97.2
89.9
79.8
100.0
94.1
86.7
102.4
96.0
89.9
SHC
48.1
60.2
70.5
51.7
68.1
82.4
55.8
74.1
89.3
kW
6.61
6.50
6.43
6.65
6.56
6.62
6.69
6.58
6.50
95
TC
94.4
86.9
75.0
98.2
91.3
81.8
99.6
93.7
87.3
SHC
47.3
59.2
68.1
51.7
67.5
79.8
55.0
74.8
87.3
kW
7.43
7.37
7.19
7.50
7.41
7.30
7.50
7.43
7.35
105
TC
91.7
82.2
70.7
94.8
87.3
76.6
97.0
90.1
83.4
SHC
46.3
57.4
65.9
50.9
66.3
76.4
54.8
74.1
83.4
kW
8.37
8.22
8.04
8.39
8.33
8.15
8.44
8.35
8.26
115
TC
87.7
77.4
66.9
91.7
81.6
72.5
93.9
85.3
78.8
SHC
44.9
55.4
64.0
50.3
64.2
72.5
55.0
72.5
78.6
kW
9.33
9.16
8.98
9.44
9.27
9.11
9.48
9.33
9.22
125
TC
83.6
73.3
66.7
87.1
76.0
69.1
89.5
79.0
74.4
SHC
43.6
53.9
63.8
48.7
62.0
69.1
53.7
70.1
74.4
kW
10.38
10.16
9.94
10.49
10.27
10.14
10.53
10.36
10.25
549B120 (10 Tons)
Temp (F)
Outdoor
Entering Air
(Edb)
Indoor Entering Air — Cfm/Bf
3000/0.03
4000/0.04
5000/0.06
Indoor Entering Air — Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
136.0
124.0
111.4
141.2
129.0
116.6
145.6
132.0
121.2
SHC
64.6
80.8
96.0
71.2
92.4
111.8
78.6
103.2
121.0
kW
7.51
7.35
7.20
7.61
7.45
7.29
7.72
7.53
7.39
85
TC
132.6
119.6
106.6
137.6
124.4
112.0
140.4
127.4
118.0
SHC
63.6
79.2
94.0
70.6
91.4
110.0
77.0
102.6
118.0
kW
8.40
8.23
8.09
8.50
8.33
8.17
8.58
8.40
8.27
95
TC
127.8
114.6
99.4
133.2
119.4
107.2
136.2
121.8
114.2
SHC
62.2
77.6
90.8
69.6
89.8
107.0
76.8
101.2
113.8
kW
9.36
9.18
9.01
9.48
9.30
9.15
9.56
9.36
9.24
105
TC
122.4
108.8
92.0
127.4
113.6
101.4
130.4
116.0
109.6
SHC
60.4
75.4
87.4
68.0
88.0
101.4
75.4
99.4
109.4
kW
10.41
10.26
10.02
10.53
10.35
10.22
10.63
10.43
10.35
115
TC
116.8
101.8
86.6
121.2
106.6
94.8
123.6
109.2
104.6
SHC
58.6
72.8
84.6
66.0
85.4
94.8
73.4
97.0
104.6
kW
11.58
11.37
11.15
11.68
11.51
11.35
11.76
11.60
11.51
125
TC
110.6
95.8
84.6
114.6
98.4
88.8
117.0
100.8
96.4
SHC
56.4
70.6
83.4
64.4
82.4
88.8
71.4
93.8
96.4
kW
12.87
12.62
12.36
12.97
12.73
12.60
13.03
12.83
12.77
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
50
T
F
Q
0
04
-0
12
5
49B
036
-120