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Table 6 — Fan Performance — 581A240270 (Low Heat Units)
LEGEND
*Standard low-medium static drive range is 1002 to 1151 rpm. Alternate
high-static drive range is 1193 to 1369. Other rpms require a field-
supplied drive.
NOTES:
1. Maximum continuous bhp for the standard motor is 9.47 (for 208-v
units) and 10.33 (for 230 and 460-v units). The maximum continuous
watts is 7915 (for 208-v units) and 8640 (for 230 and 460-v units).
Do not adjust motor rpm such that motor maximum bhp and/or watts
is exceeded at the maximum operating cfm.
2. Static pressure losses (i.e., economizer) must be added to external
static pressure before entering Fan Performance table.
3. Interpolation is permissible. Do not extrapolate.
4. Fan performance is based on wet coils, clean filters, and
casing losses. See Table 13 for accessory/FIOP static pressure
information.
5. Extensive motor and drive testing on these units ensures that the full
bhp and watts range of the motor can be utilized with confidence.
Using your fan motors up to the watts or bhp rating shown will not
result in nuisance tripping or premature motor failure. Unit warranty
will not be affected.
6. Use of a field-supplied motor may affect wiring size. Contact your
Bryant representative for details.
CFM
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
6,000
824 2607 3.09 894 2844 3.37 961 3085 3.66 1023 3330 3.95 1083 3578 4.24
6,500
881 3030 3.59 947 3266 3.88 1009 3507 4.16 1069 3751 4.45 1126 3998 4.74
7,000
939 3488 4.14 1001 3725 4.42 1060 3965 4.70 1116 4208 4.99 1170 4454 5.28
7,500
998 3982 4.72 1055 4218 5.00 1111 4458 5.29 1165 4701 5.58 1217 4946 5.87
8,000
1056 4512 5.35 1111 4748 5.63 1164 4988 5.92 1215 5230 6.20 1264 5474 6.49
8,500
1116 5077 6.02 1167 5314 6.30 1218 5553 6.59 1266 5795 6.87 1314 6039 7.16
9,000
1175 5678 6.74 1224 5915 7.02 1272 6154 7.30 1319 6395 7.59 1364 6639 7.88
9,500
1235 6315 7.49 1282 6552 7.77 1327 6791 8.06 1372 7033 8.34 1415 7276 8.63
10,000
1295 6988 8.29 1340 7225 8.57 1383 7465 8.86 1426 7706 9.14 1468 7949 9.43
CFM
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
6,000
1141 3829 4.54 1196 4082 4.84 1249 4337 5.15 1301 4596 5.45 1351 4856 5.76
6,500
1181 4247 5.04 1234 4499 5.34 1285 4753 5.64 1334 5009 5.94 1383 5267 6.25
7,000
1223 4702 5.58 1274 4953 5.88 1323 5205 6.18 1371 5460 6.48 1417 5716 6.78
7,500
1267 5194 6.16 1316 5443 6.46 1363 5694 6.76 1409 5947 7.06 1454 6202 7.36
8,000
1313 5721 6.79 1359 5970 7.08 1405 6220 7.38 1449 6472 7.68 1493 6726 7.98
8,500
1360 6285 7.46 1405 6533 7.75 1449 6783 8.05 1491 7034 8.34 1533 7286 8.64
9,000
1408 6885 8.17 1451 7132 8.46 1494 7381 8.76 1535 7631 9.05 — — —
9,500
1458 7521 8.92 1499 7768 9.22 1540 8016 9.51 — — — — — —
10,000
1508 8193 9.72 1549 8440 10.01 — — — — — — — — —
CFM
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2 2.4 2.6 2.8 3.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
6,000
1399 5118 6.07 1446 5381 6.38 1492 5647 6.70 1537 5914 7.02 — — —
6,500
1429 5527 6.56 1475 5789 6.87 1520 6052 7.18 — — — — — —
7,000
1462 5974 7.09 1507 6234 7.40 1550 6495 7.71 — — — — — —
7,500
1498 6459 7.66 1540 6717 7.97 — — — — — — — — —
8,000
1535 6981 8.28 — — — — — — — — — — — —
8,500
———————————————
9,000
———————————————
9,500
———————————————
10,000
———————————————
Bhp —
Brake Horsepower
FIOP —
Factory-Installed Option
Watts —
Input Watts to Motor