83 performance data (cont) – Bryant DURAPAC 551B User Manual
Page 83
83
PERFORMANCE DATA (cont)
COOLING CAPACITIES, UNITS WITH PERFECT HUMIDITY™ OPTION (cont)
Do not operate at these conditions.
LEGEND
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
where hewb = enthalpy of air entering indoor coil
3. The SHC is based on 80 F edb temperature of air entering evaporator coil.
Below 80 F db, subtract (corr factor x cfm) from SHC.
Above 80 F db, add (corr factor x cfm) to SHC.
Correction Factor = 1.10 x (1 – BF) x (db – 80)
551B072 (6 TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Temp (F) Air Entering Evaporator — CFM/BF
1800/0.05
2100/0.06
2400/0.06
3000/0.08
Temp (F) Air Entering Evaporator — Ewb
78
72
67
62
78
72
67
62
78
72
67
62
78
72
67
62
75
TC
89.0
82.6
75.6
68.5
91.1
84.9
78.0
70.9
92.4
85.9
79.5
73.5
89.1
82.7
77.0
SHC
25.0
36.0
44.8
55.4
25.1
37.5
49.1
59.7
25.2
38.8
51.1
64.0
41.8
58.1
70.2
kW
4.80
4.60
4.52
4.36
4.86
4.67
4.57
4.46
4.89
4.70
4.57
4.45
4.77
4.61
4.51
85
TC
84.9
78.2
71.6
64.5
87.0
80.9
73.4
65.8
82.0
74.4
67.9
85.8
78.2
72.3
SHC
21.8
31.4
41.2
41.7
21.9
33.0
44.7
55.8
34.7
47.4
60.1
37.6
54.3
66.7
kW
5.40
5.16
5.03
4.89
5.46
5.22
5.11
4.96
5.26
5.09
4.97
5.32
5.17
5.04
95
TC
80.7
73.8
67.4
60.2
76.3
68.3
60.5
77.5
69.3
62.3
82.0
72.8
67.5
SHC
18.7
27.0
37.6
47.9
28.2
40.1
51.6
30.2
43.7
56.2
33.6
49.2
62.9
kW
6.01
5.75
5.60
5.44
5.80
5.66
5.48
5.84
5.68
5.53
5.90
5.73
5.60
105
TC
68.4
62.6
55.9
71.4
64.3
56.2
72.1
64.6
58.3
75.7
67.0
62.4
SHC
22.3
33.5
43.5
23.4
36.5
48.0
25.4
38.4
50.2
29.1
45.2
56.2
kW
6.37
6.22
6.06
6.45
6.27
6.10
6.46
6.29
6.16
6.53
6.36
6.24
115
TC
63.4
57.8
50.7
66.0
60.1
51.5
66.4
59.6
54.5
68.8
60.8
57.5
SHC
18.1
29.5
38.9
18.8
32.9
44.1
20.7
33.3
43.8
24.3
41.4
49.7
kW
7.04
6.89
6.68
7.10
6.91
6.74
7.12
6.95
6.83
7.16
7.01
6.92
125
TC
55.5
49.6
45.8
58.4
52.4
46.1
57.6
52.1
49.5
59.2
52.8
53.1
SHC
15.3
24.0
35.2
15.7
27.5
39.0
17.5
27.5
38.4
20.9
34.6
44.4
kW
7.80
7.61
7.38
7.83
7.67
7.49
7.89
7.72
7.58
7.92
7.78
7.70
551B090 (7
1
/
2
TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Temp (F) Air Entering Evaporator — CFM/BF
2250/0.095
3000/0.110
3750/0.135
Temp (F) Air Entering Evaporator — Ewb
78
72
67
62
78
72
67
62
78
72
67
62
75
TC
104.4
98.4
91.1
81.1
109.5
103.7
97.9
91.8
110.0
105.8
101.3
94.1
SHC
31.1
44.5
55.4
67.0
34.0
50.4
65.4
80.5
36.5
54.5
72.4
89.5
kW
5.10
5.05
4.96
4.87
5.40
5.09
5.04
4.97
5.69
5.16
5.04
4.99
85
TC
99.9
94.2
85.8
76.9
106.8
100.3
92.4
85.2
109.6
103.5
96.8
89.0
SHC
27.4
39.7
51.3
62.7
30.9
46.2
58.3
75.7
31.5
50.6
68.2
84.3
kw
5.79
5.74
5.65
5.55
6.12
5.81
5.75
5.64
6.45
5.89
5.74
5.70
95
TC
97.6
89.9
80.5
72.6
104.2
96.9
86.8
78.6
107.9
101.1
92.2
83.8
SHC
24.4
34.8
47.2
58.3
27.7
41.9
51.2
71.0
28.9
46.6
63.9
79.1
kW
6.53
6.42
6.33
6.22
6.83
6.52
6.45
6.31
7.17
6.62
6.43
6.40
105
TC
91.7
84.6
75.3
68.0
91.6
81.3
73.4
94.5
86.3
78.4
SHC
20.7
30.0
42.5
53.9
36.9
49.3
66.4
41.4
59.2
73.8
kW
7.34
7.26
7.16
7.05
7.36
7.25
7.15
7.46
7.29
7.23
115
TC
79.2
70.1
63.3
86.2
75.8
68.1
87.9
80.3
72.9
SHC
25.2
37.8
49.4
31.9
47.4
61.9
36.1
54.4
68.5
kW
8.10
7.99
7.87
8.20
8.05
7.98
8.30
8.14
8.05
125
TC
72.8
64.5
57.2
78.0
69.8
62.3
81.6
73.2
69.2
SHC
20.1
33.4
44.1
25.4
42.5
56.5
31.1
48.9
64.7
kW
9.10
8.94
8.83
9.23
9.05
8.95
9.26
9.10
8.99
551B102 (8
1
/
2
TONS)
Temp (F)
Air Entering
Condenser
(Edb)
Temp (F) Air Entering Evaporator — CFM/BF
2550/0.075
3000/0.09
3400/0.105
4250/0.125
Temp (F) Air Entering Evaporator — Ewb
78
72
67
62
78
72
67
62
78
72
67
62
78
72
67
62
75
TC
120.5
112.4
102.2
92.6
121.5
115.2
106.4
96.4
124.9
119.6
110.3
101.3
132.7
127.6
117.6
108.0
SHC
32.5
49.1
62.4
75.0
33.2
52.9
68.5
82.3
34.2
56.2
73.3
89.5
38.0
62.8
83.3
101.7
kW
6.16
6.10
5.96
5.86
6.41
6.18
6.05
5.95
6.53
6.18
6.05
5.95
6.83
6.18
6.10
6.00
85
TC
114.2
105.7
95.7
86.5
116.7
110.0
100.6
91.0
120.3
114.0
103.7
94.6
124.0
120.3
110.9
101.2
SHC
28.8
43.6
57.1
69.9
29.9
47.8
62.8
76.9
30.4
50.7
67.9
82.8
44.8
58.5
77.7
98.4
kW
6.99
6.92
6.78
6.63
7.20
6.97
6.90
6.75
7.37
7.01
6.85
6.75
7.68
7.01
6.91
6.80
95
TC
108.0
98.9
89.1
80.4
112.4
104.7
94.8
85.5
115.0
108.4
97.0
87.9
113.0
104.1
94.3
SHC
25.1
38.0
51.7
64.8
26.8
42.7
57.0
71.4
27.2
45.2
62.4
76.2
54.3
72.0
87.9
kW
7.85
7.73
7.59
7.40
8.03
7.75
7.75
7.56
8.21
7.84
7.65
7.54
7.84
7.71
7.60
105
TC
100.2
91.8
82.3
73.8
97.3
87.6
78.6
100.4
89.8
80.8
105.1
95.3
85.8
SHC
20.9
32.6
46.3
59.5
37.0
51.9
66.8
39.3
56.7
70.0
47.1
65.5
80.9
kW
8.91
8.80
8.64
8.47
8.80
8.76
8.58
8.89
8.69
8.59
8.93
8.77
8.67
115
TC
84.7
75.5
67.3
89.8
80.5
71.7
82.5
82.5
73.8
97.2
86.6
77.4
SHC
27.2
40.9
54.2
31.4
46.9
62.2
33.4
51.0
63.8
39.9
59.1
73.9
kW
9.86
9.69
9.53
9.86
9.77
9.61
9.95
9.74
9.65
10.01
9.84
9.75
125
TC
77.6
68.7
60.7
82.4
73.3
64.8
84.5
75.3
66.7
89.3
77.8
68.9
SHC
21.8
35.5
48.9
25.7
41.8
57.6
27.5
45.3
57.6
32.7
52.6
66.9
kW
10.93
10.74
10.60
10.91
10.78
10.64
11.00
10.78
10.70
11.10
10.90
10.82
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
tldb = tedb –
sensible heat capacity (Btuh)
1.1 x cfm
tlwb = wet-bulb temperature corresponding to
enthalpy of air leaving indoor coil (hlwb)
hlwb = hewb –
total capacity (Btuh)
4.5 x cfm
0TF
Q
0
04-
01
2
5
5
1
B
03
6-
15
0