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Table 28 — Fan Performance 581B072 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*
LEGEND
*Motor drive range: 1300 to 1686 rpm. All other rpms require field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.90.
3. See below for general fan performance notes.
GENERAL FAN PERFORMANCE NOTES
1. Values include losses for filters, unit casing, and wet coils. See Fig. 38 and
Table 9 for accessory/FIOP static pressure information.
2. Extensive motor and electrical testing on these units ensures that the full range
of the motor can be utilized with confidence. Using the fan motors up to
the ratings shown will not result in nuisance tripping or premature motor failure.
Unit warranty will not be affected. See Tables 7 and 8 for additional information.
3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant repre-
sentative to verify.
4. Interpolation is permissible. Do not extrapolate.
AIRFLOW
CFM
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
1800 913 0.64 569 1010 0.80 715 1098 0.98 869 1178 1.16 1032 1252 1.35 1203
1900 952 0.73 652 1046 0.91 805 1131 1.09 965 1210 1.28 1134 1282 1.48 1311
2000 992 0.84 744 1083 1.02 903 1166 1.21 1070 1242 1.40 1245 1313 1.61 1427
2100 1032 0.95 844 1120 1.14 1010 1200 1.33 1184 1275 1.54 1365 1345 1.75 1553
2200 1073 1.07 954 1158 1.27 1127 1236 1.47 1307 1308 1.68 1495 1377 1.90 1689
2300 1114 1.21 1074 1196 1.41 1254 1272 1.62 1440 1343 1.84 1634 1409 2.07 1834
2400 1155 1.36 1204 1234 1.57 1391 1308 1.78 1584 1377 2.01 1784 1443 2.24 1990
2500 1196 1.51 1345 1273 1.73 1538 1345 1.96 1738 1412 2.19 1945 1477 2.43 2157
2600 1238 1.69 1497 1312 1.91 1697 1382 2.14 1904 1448 2.38 2117 1511 2.63 2335
2700 1280 1.87 1660 1352 2.10 1867 1420 2.34 2081 1484 2.59 2300 1546 2.84 2526
2800 1322 2.07 1835 1392 2.31 2050 1458 2.56 2270 1521 2.81 2496 — — —
2900 1364 2.28 2023 1432 2.53 2245 1496 2.78 2472 — —————
3000 1406 2.50 2224 1472 2.76 2452 —————————
AIRFLOW
CFM
EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
1800 1322 1.56 1382 1388 1.77 1568 1451 1.98 1762 1510 2.21 1962 1568 2.44 2169
1900 1351 1.68 1495 1416 1.90 1686 1477 2.12 1885 1536 2.35 2090 1593 2.59 2302
2000 1380 1.82 1617 1444 2.04 1814 1505 2.27 2017 1563 2.51 2227 1619 2.75 2443
2100 1411 1.97 1748 1473 2.20 1950 1533 2.43 2159 1590 2.67 2374 — — —
2200 1441 2.13 1890 1503 2.36 2097 1562 2.60 2311 1618 2.85 2532 — — —
2300 1473 2.30 2041 1533 2.54 2254 1591 2.79 2474 — —————
2400 1505 2.48 2203 1564 2.73 2422 —————————
2500 1537 2.68 2376 ————————————
2600 1571 2.88 2560 ————————————
2700 ———————————————
2800 ———————————————
2900 ———————————————
3000 ———————————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor