Specifications
37
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
NOTES:
1.
Boldface
indicates a field-supplied drive is required. (See Note 6.)
2. indicates field-supplied motor and drive are required.
3. 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
premature motor failure. Unit warranty will not be affected. For additional
information on motor performance, refer to Evaporator-Fan Motor Data
tables on pages 42 and 43.
4. Values include losses for filters, unit casing, and wet coils. See page 43 for
accessory/FIOP static pressure information.
5. Use of a field-supplied motor may affect wire sizing. Contact Bryant repre-
sentative to verify.
6. Motor drive range: 1120 to 1585 rpm for standard motors; 1300 to 1685 rpm
for high-static motors. All other rpms require field-supplied drive.
7. Interpolation is permissible. Do not extrapolate.
551B072 (6 TONS) STANDARD MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.1 0.2 0.4 0.6 0.8
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1800 765 0.45 821 0.51 923 0.65 1019 0.81 1099 0.96
1900 802 0.45 854 0.58 953 0.73 1046 0.90
1126 1.06
2000 840 0.60 888 0.66 984 0.82 1073 0.99
1154 1.16
2100 878 0.69 923 0.75 1015 0.91 1101 1.08
1182 1.27
2200 916 0.78 958 0.85 1046 1.01
1129 1.19 1209 1.39
2300 954 0.89 993 0.96 1079 1.13
1160 1.31 1237 1.51
2400 9931.0010291.0711121.25
1190 1.43 1264 1.63
2500 1031 1.13 1066 1.20
1145 1.39 1220 1.57 1292 1.77
2600 1070 1.26
1103 1.34 1179 1.52 1251 1.71 1322 1.92
2700
1109 1.41 1140 1.48 1212 1.67 1283 1.87 1352 2.09
2800
1148 1.57 1177 1.64 1246 1.83 1316 2.04 1383 2.26
2900
1188 1.74 1215 1.81 1281 2.00 1349 2.22
1413 2.44
3000
1227 1.92 1253 2.00 1316 2.19
1382 2.42 1444 2.63
551B072 (6 TONS) STANDARD MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.0 1.2 1.4 1.6
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1800
1178 1.14 1249 1.32 1316 1.52 1382 1.72
1900
1201 1.23 1274 1.43 1338 1.62 1402 1.83
2000
1226 1.33 1297 1.53 1363 1.73 1424 1.94
2100
1252 1.45 1320 1.64 1388 1.85 1448 2.07
2200
1280 1.58 1345 1.77 1410 1.97 1473 2.20
2300
1309 1.71 1372 1.91 1434 2.11 1496 2.34
2400
1336 1.85 1400 2.06 1459 2.26
1519 2.48
2500
1363 2.00 1428 2.22
1486 2.43 1543 2.65
2600
1390 2.15 1456 2.38
1514 2.61 1569 2.83
2700
1418 2.31
1483 2.56 1543 2.80 ——
2800
1446 2.48 1510 2.73 ————
2900
1476 2.67 1537 2.92 ————
3000
1506 2.88 ——————
551B072 (6 TONS) HIGH-STATIC MOTOR (BELT DRIVE)
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1800 821 0.51 923 0.65 1019 0.81 1099 0.96 1178 1.14
1900 854 0.58 953 0.73 1046 0.90 1126 1.06 1201 1.23
2000 888 0.66 984 0.82 1073 0.99 1154 1.16 1226 1.33
2100 923 0.75 1015 0.91 1101 1.08 1182 1.27 1252 1.45
2200 958 0.85 1046 1.01 1129 1.19 1209 1.39 1280 1.58
2300 9930.9610791.1311601.3112371.51
1309 1.71
2400 1029 1.07 1112 1.25 1190 1.43 1264 1.63
1336 1.85
2500 1066 1.20 1145 1.39 1220 1.57 1292 1.77
1363 2.00
2600 1103 1.34 1179 1.52 1251 1.71
1322 1.92 1390 2.15
2700 1140 1.48 1212 1.67 1283 1.87
1352 2.09 1418 2.31
2800 1177 1.64 1246 1.83
1316 2.04 1383 2.26 1446 2.48
2900 1215 1.81 1281 2.00
1349 2.22 1413 2.44 1476 2.67
3000 1253 2.00
1316 2.19 1382 2.42 1444 2.63 1506 2.88
551B072 (6 TONS) HIGH-STATIC MOTOR (BELT DRIVE) (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
1800 1249 1.32
1316 1.52 1382 1.72 1427 1.89 1468 2.06
1900 1274 1.43
1338 1.62 1402 1.83 1447 2.01 1489 2.19
2000 1297 1.53
1363 1.73 1424 1.94 1470 2.13 1512 2.32
2100
1320 1.64 1388 1.85 1448 2.07 1495 2.28 1538 2.48
2200
1345 1.77 1410 1.97 1473 2.20 1621 2.42 1564 2.64
2300
1372 1.91 1434 2.11 1496 2.34 1544 2.57 1589 2.80
2400
1400 2.06 1459 2.26 1519 2.48 1568 2.73
1613 2.97
2500
1428 2.22 1486 2.43 1543 2.65
1593 2.92 1639 3.17
2600
1456 2.38 1514 2.61 1569 2.83
1620 3.11 1666 3.39
2700
1483 2.56 1543 2.80
1600 3.12 1651 3.43 1699 3.74
2800
1510 2.73
1574 3.09 1632 3.45 1685 3.79 1733 4.13
2900
1537 2.92 1602 3.31 1661 3.69 1715 4.06 1764 4.42
3000
1582 3.34 1649 3.78 1710 4.21 1765 4.64 ——
Bhp —
Brake Horsepower Input to Fan
FIOP —
Factory-Installed Option