Bryant 579F User Manual page 262

581A210 (18 TONS) (Low Heat Units)*
Airflow
0.2
(Cfm)
Rpm Bhp
3,500 635 1064
4,000 707 1402
4,500 780 1802
5,000 853 2264
5,500 928 2794
6,000 1003 3047
6,500 1079 3812
7,000 1155 4697
7,500 1231 5714
8,000 1308 6871
8,500 1385 8177
9,000 — —
9,500 — —
10,000 — —
581A210 (18 TONS) (Low Heat Units)* (cont)
Airflow
1.2
(Cfm)
Rpm Bhp
3,500 951 2143
4,000 998 2535
4,500 1050 2756
5,000 1105 3329
5,500 1163 3997
6,000 1224 4771
6,500 1286 5658
7,000 1350 6668
7,500 — —
8,000 — —
8,500 — —
9,000 — —
9,500 — —
10,000 — —
LEGEND
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
*Motor drive ranges:
Low Range: 896-1227 (208/230 and 460-v), 863-1141 (575-v)
High Range: 1113-1414 (208/230 and 460-v), 1042-1285 (575-v)
All other rpms require field-supplied drive.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
0.4
Watts Rpm Bhp Watts
1.22 709 1278 1.47
1.61 773 1627 1.87
2.07 840 2037 2.34
2.60 909 2510 2.89
3.21 979 3049 3.51
3.50 1051 3376 3.88
4.38 1123 4166 4.79
5.40 1196 5078 5.84
6.57 1270 6120 7.04
7.90 1344 7303 8.40
9.40 — — —
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1.4
Watts Rpm Bhp Watts
2.46 1003 2120 2.44
2.92 1048 2548 2.93
3.17 1097 3055 3.51
3.83 1150 3651 4.20
4.60 1205 4342 4.99
5.49 1263 5138 5.91
6.51 1324 6048 6.96
7.67 1386 7081 8.14
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External Static Pressure (in. wg)
0.6
Rpm Bhp Watts
776 1492 1.72
835 1853 2.13
897 2273 2.61
961 2756 3.17 1011
1028 3012 3.46 1075
1096 3714 4.27 1140
1166 4529 5.21 1207
1236 5465 6.29 1275
1308 6533 7.51 1345
1380 7741 8.90
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External Static Pressure (in. wg)
1.6
Rpm Bhp Watts
1052 2387 2.75 1100
1095 2835 3.26 1141
1142 3363 3.87 1185
1192 3979 4.58 1234
1246 4692 5.40 1286
1302 5511 6.34 1340
1361 6445 7.41 1397
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Refer to page 261 for general Fan Performance Data notes.
NOTE: Maximum continuous bhp is:
Low Range: 4.25 (208/230 and 460-v), 3.45 (575-v)
High Range: 5.75
262
0.8
Rpm Bhp Watts Rpm
838 1708 1.96 896
892 2080 2.39 947
950 2510 2.89 1001
2710 3.12 1059
3333 3.83 1120
4059 4.67 1182
4898 5.63 1247
5859 6.74 1313
6952 8.00 1381
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1.8
Rpm Bhp Watts Rpm
2662 3.06 1146
3129 3.60 1184
3678 4.23 1227
4315 4.96 1274
5051 5.81 1324
5892 6.78 1377
6847 7.87 —
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1.0
Bhp Watts
1924 2.21
2307 2.65
2465 2.84
3015 3.47
3661 4.21
4411 5.07
5274 6.07
6260 7.20
7378 8.49
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2.0
Bhp Watts
2944 3.39
3432 3.95
4001 4.60
4658 5.36
5415 6.23
6278 7.22
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