Bryant Single Package Rooftop Electric Heating/Electric Cooling Unit 558D - Manual (Page 23)

Table 10 — 558D060 Air Delivery — Vertical Discharge Units (Alternate Motor)
AIRFLOW
(Cfm)
ALTERNATE BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts
1500 730 347 789 409 896 542 990 685 1072 848 1153 1022 1221 1196 1256 1328 1280 1349 1320 1400
1600 770 409 826 470 931 623 1020 766 1101 930 1178 1114 1252 1298 1311 1482 1340 1615 1380 1645
1700 811 480 865 552 966 705 1051 858 1133 1032 1205 1206 1278 1400 1345 1604 1397 1799 1424 1931
1800 852 562 905 634 1002 797 1084 950 1163 1124 1235 1318 1303 1512 1371 1727 1433 1942 1480 2136
1900 894 552 945 736 1037 899 1119 1063 1194 1237 1266 1431 1330 1625 1396 1850 1460 2074 1517 2299
2000 936 756 984 838 1072 1001 1154 1185 1226 1359 1297 1564 1362 1768 1422 1983 1485 2207 1544 2453
2100 978 869 1024 950 1108 1124 1192 1318 1259 1502 1327 1696 1393 1911 1452 2126 1510 2361 1569 2606
2200 1021 991 1064 1073 1145 1247 1225 1461 1294 1656 1359 1850 1423 2064 1483 2289 1538 2514 1595 2769
2300 1064 1124 1104 1206 1183 1390 1260 1604 1330 1819 1392 2013 1454 2228 1515 2463 1569 2698 1622 2943
2400 1107 1267 1145 1349 1222 1482 1296 1768 1365 1983 1426 2197 1485 2412 1544 2647 1601 2902 1652 3137
2500 1150 1420 1186 1512 1262 1717 1331 1931 1400 2166 1461 2391 1518 2606 1575 2841 1631 3096 1684 3352
NOTES:
1. Boldface indicates a field-supplied drive is required. (See Note 7.)
2. indicates field-supplied motor and drive are required.
3. indicates maximum usable watts of a factory-supplied motor.
4. Maximum usable watts input is 2120. Extensive motor and electrical testing on these units ensures that the full range of the motor can be
utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor
failure. Unit warranty will not be affected. For additional information on motor performance, refer to Table 4.
5. Values include losses for filters, unit casing, and wet coils.
6. Use of a field-supplied motor may affect wire sizing. Contact your distributor to verify.
7. Alternate motor drive range: 900 to 1300. All other rpms require field-supplied drive.
8. To convert watts to bhp:
watts input x motor efficiency
bhp =
746
Motor efficiency = .74
Table 11 — 558C072 Air Delivery — Vertical Discharge Units (Standard Motor)
AIRFLOW
(Cfm)
STANDARD BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts
1800 852 562 905 615 1002 739 1084 859 1163 998 1235 1156 1303 1318 1371 1499 1433 1638
1900 894 630 945 692 1037 818 1119 948 1194 1089 1266 1250 1330 1413 1396 1604 1460 1796
2000 936 708 984 771 1072 899 1154 1047 1226 1190 1297 1361 1362 1534 1422 1718 1485 1910
2100 978 795 1024 859 1108 998 1190 1156 1259 1310 1327 1473 1393 1656 1452 1840 1510 2041
2200 1021 891 1064 956 1145 1097 1225 1275 1294 1439 1359 1604 1423 1779 1483 1980 1538 2171
2300 1064 998 1104 1064 1183 1216 1260 1396 1330 1578 1392 1744 1454 1927 1515 2128 1569 2326
2400 1107 1114 1145 1182 1222 1353 1296 1534 1365 1718 1426 1901 1485 2084 1544 2283 1601 2459
2500 1150 1241 1186 1318 1262 1491 1331 1674 1400 1875 1461 2067 1518 2249 1575 2445 — —
2600 1193 1387 1228 1465 1301 1648 1367 1831 1435 2041 1497 2240 1552 2428 — — — —
2700 1237 1543 1269 1621 1341 1814 1404 1997 1471 2214 1532 2420 — — — — — —
2800 1280 1718 1311 1796 1381 1989 1442 2180 1506 2394 — — — — — — — —
2900 1324 1901 1354 1980 1420 2180 1481 2369 1542 2579 — — — — — — — —
3000 1368 2093 1396 2171 1460 2369 1521 2571 — — — — — — — — — —
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 7.)
2. indicates field-supplied motor and drive are required.
3. indicates maximum usable watts of a factory-supplied motor.
4. Maximum usable watts input is 2120. Extensive motor and electrical testing on these units ensures that the full range of the motor can be
utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor
failure. Unit warranty will not be affected. For additional information on motor performance, refer to Table 4.
5. Values include losses for filters, unit casing and wet coils.
6. Use of a field-supplied motor may affect wire sizing. Contact your distributor to verify.
7. Standard motor drive range: 1070 to 1460. All other rpms require field-supplied drive.
8. To convert watts to bhp:
watts input x motor efficiency
bhp =
746
Motor efficiency = .84
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