Bryant 581A Gas Heater User Manual

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PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

LEGEND

*Motor drive range: 1070 to 1460 rpm. All other rpms require a field-supplied

drive.

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 74 for general fan performance notes.

LEGEND

*Motor drive range: 1300 to 1685 rpm. All other rpms require a field-supplied

drive.

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 74 for general fan performance notes.

580F072,073 (6 TONS) — STANDARD MOTOR (BELT DRIVE)*

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 919 0.63 561 1010 0.75 663 1095 0.87 771 1174 1.00 886 1250 1.14 1008

1900 960 0.73 648 1047 0.85 754 1129 0.98 867 1206 1.11 986 1279 1.25 1111

2000 1001 0.84 744 1085 0.96 855 1163 1.09 972 1238 1.23 1095 1309 1.38 1224

2100 1043 0.96 850 1123 1.09 965 1199 1.22 1086 1271 1.37 1213 1340 1.52 1346

2200 1085 1.09 966 1162 1.22 1086 1235 1.36 1211 1305 1.51 1342 1372 1.67 1479

2300 1127 1.23 1092 1201 1.37 1217 1272 1.52 1347 1340 1.67 1482 1405 1.83 1623

2400 1169 1.38 1229 1241 1.53 1359 1310 1.68 1493 1375 1.84 1633 1439 2.00 1778

2500 1212 1.55 1378 1281 1.70 1513 1348 1.86 1652 1412 2.02 1796 1473 2.19 1945

2600 1255 1.73 1539 1322 1.89 1678 1386 2.05 1822 1448 2.22 1970 1508 2.39 2124

2700 1298 1.93 1713 1363 2.09 1857 1425 2.26 2005 — — — — — —

2800 1341 2.14 1899 1404 2.31 2048 — — — — — — — — —

2900 1384 2.36 2099 — — — — — — — — — — — —

3000 —— — —— — —— — —— — —— —

580F072,073 (6 TONS) — STANDARD MOTOR (BELT DRIVE)*

(cont)

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 1321 1.28 1137 1390 1.43 1273 1455 1.59 1415 1518 1.76 1563 1579 1.93 1718

1900 1348 1.40 1243 1415 1.56 1381 1479 1.72 1526 1541 1.89 1677 1601 2.06 1834

2000 1377 1.53 1359 1442 1.69 1500 1505 1.86 1648 1565 2.03 1801 1624 2.21 1961

2100 1406 1.67 1485 1470 1.83 1629 1531 2.00 1780 1591 2.18 1936 1648 2.36 2098

2200 1437 1.83 1621 1499 1.99 1769 1559 2.16 1923 1617 2.34 2082 —— —

2300 1468 1.99 1769 1529 2.16 1920 1587 2.34 2077 —— — —— —

2400 1500 2.17 1928 1559 2.35 2083 —— — —— — —— —

2500 1533 2.36 2098 ————————————

2600 —— — —— — —— — —— — —— —

2700 —— — —— — —— — —— — —— —

2800 —— — —— — —— — —— — —— —

2900 —— — —— — —— — —— — —— —

3000 —— — —— — —— — —— — —— —

Bhp — Brake Horsepower Input to Fan

Watts — Input Watts to Motor

580F072,073 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*