Performance Data - Bryant 566D User Manual

Commercial air-cooled condensing units with 524a air-handling units
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UNIT
AIRFLOW
524A-B
524A-C
072
090
120
150
180
240
300
LEGEND
Cap. — Capacity (Btuh in thousands)
Lab — Leaving-Air Dry-Bulb Temp (F)
PD
— Pressure Drop (ft water)
*Based on 5 psig steam, 60 F entering-air temperature. All steam coils
are non-freeze type.
†Based on 200 F entering water, 20 F water temperature drop, 60 F
entering-air temperature.
Water Temp
Drop
(F)
10
20
30
Steam Pressure
NOTE: Multiply capacity given in the Hydronic Heating Capacities table by the correction factor for conditions at which unit is actually
operating. Correct leaving-air temperature using formula in Note 2 of Hydronic Heating Capacities table.
PERFORMANCE DATA (cont)
HYDRONIC HEATING CAPACITIES
1-ROW
STEAM*
(Cfm)
Cap.
1,800
146
2,400
173
3,000
209
2,250
168
3,000
209
3,750
240
3,000
209
4,000
243
5,000
279
3,750
370
5,000
425
6,250
465
4,500
402
6,000
458
7,500
479
6,000
458
8,000
487
10,000
499
7,500
511
10,000
575
12,500
626
HEATING CORRECTION FACTORS
Ent Water
Temp
(F)
140
160
240
200
220
140
160
240
200
220
140
160
240
200
220
(psig)
40
0
1.06
2
1.09
5
1.13
Ldb
Cap.
134
156.0
126
183.0
123
206.0
129
174.0
123
206.0
117
238.0
123
299.0
115
275.0
111
316.0
150
362.0
137
409.0
128
456.0
141
412.0
129
471.0
118
529.0
129
506.0
115
584.0
105
652.0
122
649.0
112
752.0
106
842.0
NOTES:
1. Maximum operating limits for heating coils: 20 psig at 260 F.
2. Leaving db = ent db (F) +
3. See Heating Correction Factors table.
HOT WATER COIL
Entering-Air Temp (F)
40
50
0.72
0.64
0.89
0.81
1.06
0.98
1.22
1.15
1.39
1.32
0.64
0.57
0.81
0.74
0.98
0.91
1.15
1.08
1.32
1.25
0.56
0.49
0.74
0.66
0.91
0.83
1.08
1.00
1.25
1.18
STEAM COIL
Entering-Air Temp (F)
50
60
0.98
0.91
1.02
0.95
1.06
1.00
71
2-ROW
HOT WATER COIL†
Water
Ldb
Flow
(Gpm)
140
15.6
131
18.3
124
20.6
133
17.4
124
20.6
118
23.8
152
29.9
124
27.5
119
31.6
149
36.2
136
40.9
128
45.6
145
41.2
133
47.1
125
52.9
138
50.6
128
58.4
120
65.2
140
64.9
130
75.2
122
84.2
Capacity (Btuh)
1.1 x cfm
60
70
80
0.57
0.49
0.41
0.74
0.66
0.58
0.90
0.83
0.75
1.07
1.00
0.92
1.24
1.17
1.09
0.49
0.41
0.33
0.66
0.58
0.51
0.83
0.75
0.68
1.00
0.93
0.85
1.17
1.10
1.02
0.41
0.33
0.24
0.58
0.51
0.43
0.76
0.68
0.60
0.93
0.85
0.78
1.10
1.03
0.95
70
80
0.85
0.78
0.89
0.82
0.93
0.87
PD
3.4
4.3
5.2
4.0
5.2
6.5
5.0
6.6
8.2
4.2
5.1
6.0
4.5
5.5
6.6
5.1
6.3
7.5
5.7
7.1
8.5

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