Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual page 29

581B072 (6 TONS) — STANDARD MOTOR
AIRFLOW
0.1
(Cfm)
Rpm Bhp
1800 942 0.70
1900 982 0.80
2000 1022 0.91
2100 1063 0.99
2200 1104 1.13
2300 1130 1.26
2400 1174 1.37
2500 1201 1.48
2600 1246 1.62
2700 1285 1.75
2800 1304 1.87
2900 1345 2.07
3000 1378 2.26
581B072 (6 TONS) — HIGH-STATIC MOTOR
AIRFLOW
(Cfm)
Rpm
1800 978
1023
1900
2000 1068
2100 1115
1159
2200
1202
2300
1237
2400
1272
2500
1320
2600
1361
2700
1402
2800
1446
2900
1489
3000
581B072 (6 TONS) — HIGH-STATIC MOTOR (cont)
AIRFLOW
(Cfm)
Rpm
1800 1395
1900 1430
2000 1459
2100 1489
2200 1528
2300 1561
2400 1584
2500 1633
2600 1675
2700 1776
2800 —
2900 —
3000 —
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
NOTES:
1. Boldface indicates field-supplied drive required. (See Note 3.)
2. indicates field-supplied motor and drive required.
3. Motor drive range is 1120 to 1585 rpm for standard motors, 1300 to
1685 rpm for high-static motors. All other rpms require a field-supplied drive.
4. Values include losses for filters, unit casing, and wet coils. See page 40 for
accessory/FIOP static pressure information.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
0.2 0.4
Rpm Bhp Rpm Bhp Rpm
978 0.66 1063 0.82 1147
1023 0.78 1097 0.91 1175
1068 0.90 1132 1.01 1218
1115 1.00 1180 1.17 1261
1159 1.15 1214 1.28 1310
1202 1.29 1248 1.38 1358
1237 1.41 1292 1.55 1392
1272 1.53 1335 1.71 1427
1320 1.68 1368 1.81 1458
1361 1.82 1400 1.91 1490
1402 1.95 1439 2.08 1543
1446 2.16 1477 2.16 1585
1489 2.36 1529 2.52 1598
0.2 0.4
Bhp Rpm
0.66 1063
0.78 1097
0.90 1132
1.00 1180
1.15 1214
1.29 1248
1.41 1292
1.53 1335
1.68 1368
1.82 1400
1.95 1439
2.16 1477
2.36 1529
1.2 1.4
Bhp Rpm
1.46 1475
1.58 1504
1.67 1532
1.80 1567
1.95 1603
2.13 1637
2.28 1671
2.53 1698
2.77 1768
3.45 —
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EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm
0.97 1248 1.20 1322
1.11 1266 1.29 1356
1.23 1303 1.41 1397
1.35 1340 1.53 1428
1.52 1375 1.63 1459
1.69 1410 1.72 1488
1.81 1460 1.90 1532
1.94 1518 2.16 1575
2.06 1562 2.42 1620
2.19 1602 2.64 1666
2.43 1642 2.86 —
2.65 — — —
2.73 — — —
EXTERNAL STATIC PRESSURE (in. wg)
0.6
Bhp Rpm Bhp
0.82 1147 0.97
0.91 1175 1.11
1.01 1218 1.23
1.17 1261 1.35
1.28 1310 1.52
1.38 1358 1.69
1.55 1392 1.81
1.71 1427 1.94
1.81 1458 2.06
1.91 1490 2.19
2.08 1543 2.43
2.16 1585 2.65
2.52 1598 2.73
EXTERNAL STATIC PRESSURE (in. wg)
1.6
Bhp Rpm Bhp
1.56 1542 1.71
1.69 1556 1.82
1.82 1588 1.97
1.99 1626 2.16
2.17 1666 2.37
2.35 1710 2.54
2.55 1756 2.70
2.72 1779 3.13
3.26 — —
— — —
— — —
— — —
— — —
5. Maximum continuous bhp is 2.40 for standard motors, 2.90 for high-static
motors. 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 ratings shown will not result in nuisance tripping or prema-
ture motor failure. Unit warranty will not be affected. See Evaporator-Fan
Motor Data tables on pages 41 and 42 for additional information.
6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant
representative to verify.
7. Interpolation is permissible. Do not extrapolate.
29
1.0 1.2 1.4
Bhp Rpm Bhp Rpm
1.33 1395 1.46 1475
1.47 1430 1.58 1504
1.52 1459 1.67 1532
1.66 1489 1.80 1567
1.80 1528 1.95 1603
1.93 1561 2.13 1637
2.14 1584 2.28 1671
2.35 1633 2.53 1698
2.59 1675 2.77 —
2.85 — — —
— — — —
— — — —
— — — —
0.8
Rpm Bhp
1248 1.20
1266 1.29
1303 1.41
1340 1.53
1375 1.63
1410 1.72
1460 1.90
1518 2.16
1562 2.42
1602 2.64
1642 2.86
1753 3.58
1767 3.69
1.8
Rpm Bhp
1607 1.94
1621 2.06
1655 2.23
1694 2.44
1736 2.68
1782 2.87
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1.6
Bhp Rpm Bhp
1.56 1542 1.71
1.69 1556 1.82
1.82 1588 1.97
1.99 1626 2.16
2.17 1666 2.37
2.35 1710 2.54
2.55 1756 2.70
2.72 — —
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1.0
Rpm Bhp
1322 1.33
1356 1.47
1397 1.52
1428 1.66
1459 1.80
1488 1.93
1532 2.14
1575 2.35
1620 2.59
1666 2.85
1775 3.62
— —
— —
2.0
Rpm Bhp
1667 2.16
1682 2.30
1717 2.49
1758 2.73
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