Bryant 579F User Manual page 269

581A300 (25 TONS) (Medium Heat Units)*
Airflow
0.2
(Cfm)
Rpm Bhp Watts
6,500 799 2,730
7,000 856 3,294
7,500 913 3,929
8,000 971 4,637
8,500 1029 5,421
9,000 1087 6,285
9,500 1145 7,231
10,000 1203 8,262
10,500 1261 9,381 10.79
11,000 1320 10,592 12.18
11,500 1378 11,896 13.68
12,000 — —
12,500 — —
581A300 (25 TONS) (Medium Heat Units)* (cont)
Airflow
1.2
(Cfm)
Rpm Bhp
6,500 1005 4,020
7,000 1041 4,555
7,500 1080 5,168
8,000 1122 5,862
8,500 1167 6,638
9,000 1214 7,499
9,500 1262 8,447
10,000 1312 9,482
10,500 1363 10,608
11,000 — —
11,500 — —
12,000 — —
12,500 — —
LEGEND
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
*Motor drive ranges:
Low Range: 805-1007
High Range: 941-1176
All other rpms require field-supplied drive.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
0.4
Rpm Bhp Watts
3.14 833 2,914 3.35
3.79 887 3,481 4.00
4.52 941 4,118 4.74
5.33 996 4,829 5.55
6.24 1052 5,617 6.46
7.23 1108 6,484 7.46
8.32 1165 7,433 8.55
9.50 1222 8,468 9.74
1279 9,592 11.03
1337 10,807 12.43
— — —
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1.4
Watts Rpm Bhp Watts
4.62 1052 4,390 5.05
5.24 1084 4,908 5.64
5.94 1119 5,508 6.33
6.74 1158 6,190 7.12
7.63 1200 6,959 8.00
8.63 1244 7,813 8.99
9.72 1290 8,754 10.07
10.91 1338 9,785 11.25
12.20 1387 10,909 12.55
— — — —
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External Static Pressure (in. wg)
0.6
Rpm Bhp Watts Rpm
872 3,135 3.61
921 3,699 4.25
972 4,335 4.99 1006
1024 5,046 5.80 1055
1078 5,835 6.71 1106
1132 6,703 7.71 1158
1187 7,655 8.80 1211
1243 8,693 10.00 1265
1299 9,820 11.29 1319
1355 11,038 12.70 1374
— — —
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External Static Pressure (in. wg)
1.6
Rpm Bhp Watts
1100 4,791 5.51
1128 5,294 6.09
1160 5,878 6.76
1195 6,548 7.53
1234 7,305 8.40
1275 8,149 9.37
1319 9,084 10.45
1365 10,110 11.63
— — —
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Refer to page 261 for general Fan Performance Data notes.
NOTE: Maximum continuous bhp is:
Low Range: 5.75
High Range: 8.63
269
0.8
Bhp Watts Rpm
914 3,392 3.90 958
958 3,950 4.54 999
4,582 5.27 1042
5,290 6.08 1088
6,077 6.99 1136
6,946 7.99 1185
7,898 9.08 1236
8,936 10.28 1288
10,065 11.58 1341
11,284 12.98 1394
— — — —
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1.8
Rpm Bhp Watts Rpm
1148 5,221 6.00 1195
1172 5,710 6.57 1217
1201 6,279 7.22 1242
1233 6,934 7.97 1272
1269 7,677 8.83 1304
1308 8,511 9.79 1340
1349 9,437 10.85 1379
1392 10,454 12.02 —
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1.0
Bhp Watts
3,687 4.24
4,235 4.87
4,860 5.59
5,562 6.40
6,345 7.30
7,211 8.29
8,161 9.39
9,199 10.58
10,327 11.88
11,547 13.28
— —
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2.0
Bhp Watts
5673 6.52
6153 7.08
6708 7.71
7347 8.45
8076 9.29
8896 10.23
9812 11.28
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