Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual page 36

581B072 (6 TONS) — STANDARD MOTOR
AIRFLOW
0.1
(Cfm)
Rpm Bhp Rpm
1800 885 0.63
1900 928 0.73
2000 971 0.84 1022
2100 1015 0.97 1063
2200 1060 1.10 1104
2300 1104 1.25 1130
2400 1138 1.30 1174
2500 1183 1.43 1201
2600 1210 1.58 1243
2700 1254 1.76 1285
2800 1274 1.82 1304
2900 1318 1.95 1345
3000 1362 2.20 1378
581B072 (6 TONS) — HIGH-STATIC MOTOR
AIRFLOW
0.2
(Cfm)
Rpm Bhp Rpm
1800 942 0.73 1047
1900 982 0.83 1084
2000 1022 0.94 1121
2100 1063 1.10 1140
2200 1104 1.20 1159
2300 1130 1.27 1196
2400 1174 1.37 1245
2500 1201 1.50 1284
2600 1246 1.67 1312
2700 1285 1.80 1354
2800 1304 1.85 1374
2900 1345 2.05 1412
3000 1378 2.30 1451
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 — HORIZONTAL DISCHARGE UNITS (cont)
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4
Bhp Rpm Bhp Rpm
942 0.73 1047 0.90 1139
982 0.83 1084 1.02 1160
0.94 1121 1.12 1188
1.10 1140 1.18 1196
1.20 1159 1.23 1229
1.27 1196 1.37 1264
1.37 1245 1.57 1305
1.50 1284 1.65 1338
1.67 1312 1.76 1366
1.80 1354 1.95 1403
1.85 1374 2.12 1459
2.05 1412 2.32 1496
2.30 1451 2.40 1534
EXTERNAL STATIC PRESSURE (in. wg)
0.4 0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.90 1139 1.05 1193 1.14
1.02 1160 1.11 1223 1.24
1.12 1188 1.22 1264 1.36
1.18 1196 1.27 1272 1.45
1.23 1229 1.41 1306 1.53
1.37 1264 1.56 1340 1.66
1.57 1305 1.63 1373 1.84
1.65 1338 1.75 1402 1.99
1.76 1366 1.96 1435 2.10
1.95 1403 2.14 1474 2.21
2.12 1459 2.25 1514 2.42
2.32 1496 2.54 1529 2.61
2.40 1534 2.66 1560 2.81
0.6 0.8 1.0
Bhp Rpm Bhp Rpm
1.05 1193 1.14 1276
1.11 1223 1.24 1301
1.22 1254 1.36 1329
1.27 1272 1.45 1354
1.41 1306 1.53 1363
1.56 1340 1.66 1397
1.63 1373 1.84 1440
1.75 1402 1.99 1469
1.96 1435 2.10 1494
2.14 1474 2.21 1536
2.25 1514 2.42 1570
2.45 1529 2.61 1603
2.66 1560 2.81 1611
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
1276 1.30 1341 1.40 1413
1301 1.38 1374 1.53 1437
1329 1.44 1396 1.66 1460
1354 1.58 1413 1.75 1475
1363 1.70 1434 1.81 1487
1397 1.86 1459 1.88 1520
1440 1.95 1502 2.06 1552
1469 2.04 1524 2.24 1585
1494 2.19 1552 2.40 1616
1536 2.46 1584 2.61 1646
1570 2.66 1624 2.85 1677
1603 2.87 1671 3.03 1742
1611 3.01 1692 3.49 1764
5. Maximum continuous bhp is 2.4 for standard motors; 2.9 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 premature 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 rep-
resentative to verify.
7. Interpolation is permissible. Do not extrapolate.
36
1.2 1.4
Bhp Rpm Bhp Rpm Bhp
1.30 1341 1.40 1413 1.55
1.38 1374 1.53 1437 1.62
1.44 1396 1.66 1460 1.68
1.58 1413 1.75 1475 1.73
1.70 1434 1.81 1487 1.85
1.86 1459 1.88 1520 2.07
1.95 1502 2.06 1552 2.24
2.04 1524 2.24 1585 2.42
2.19 1552 2.40 1616 2.63
2.46 1584 2.61 1646 2.83
2.66 1624 2.85 1677 2.99
2.87 1671 3.03 — —
3.01 — — — —
1.4 1.6 1.8
Bhp Rpm Bhp Rpm
1.55 1474 1.58 1522
1.62 1490 1.67 1538
1.68 1509 1.77 1558
1.73 1529 1.92 1578
1.85 1554 2.07 1604
2.07 1576 2.24 1627
2.24 1604 2.42 1656
2.42 1638 2.60 1691
2.63 1671 2.80 1726
2.83 1706 2.97 1761
2.99 1739 3.33 1795
3.43 — — —
3.95 — — —
1.6
Rpm Bhp
1474 1.58
1490 1.67
1509 1.77
1529 1.92
1554 2.07
1576 2.24
1604 2.42
1638 2.60
1671 2.80
1706 2.97
— —
— —
— —
2.0
Bhp Rpm Bhp
1.74 1566 1.89
1.84 1583 2.00
1.95 1603 2.12
2.11 1624 2.30
2.28 1651 2.48
2.46 1674 2.68
2.66 1704 2.90
2.86 1740 3.12
3.09 1775 3.35
3.27 — —
3.67 — —
— — —
— — —