Bryant 558D Installation, Start-Up And Service Instructions Manual page 26

Table 16 — 558D060 Air Delivery — Horizontal Discharge Units (Standard Motor)
AIRFLOW
(Cfm)
208 v
ESP Watts
1500 1.01 750
1600 0.82 780
1700 0.64 810
1800 0.44 839
1900 0.32 869
2000 0.21 899
2100 0.13 929
2200 0.05 959
2300 — —
2400 — —
2500 — —
LEGEND
ESP — External Static Pressure (in. wg)
NOTES:
1. Values include losses for filters, unit casing, and wet coils.
2. 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 af-
fected. For additional information on motor performance, refer to Table 4.
3. Use of field-supplied motor may affect wire sizing. Contact your distributor to verify.
4. To convert watts to bhp:
watts input x motor efficiency
bhp =
746
Motor efficiency = .67
Table 17 — 558D060 Air Delivery — Horizontal Discharge Units (Alternate Motor)
AIRFLOW
(Cfm)
0.1 0.2
Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts Rpm Watts
1500 658 276 722
1600 693 327 754
1700 729 388 787
1800 765 460 821
1900 802 531 854
2000 840 613 900
2100 878 705 923
2200 916 797 958
2300 954 910 993
2400 993 1022 1029
2500 1031 1155 1066
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
Low Speed
230, 460, 575 v
ESP Watts ESP
1.25 791 1.26
1.09 824 1.11
0.97 857 0.99
0.81 891 0.84
0.66 924 0.69
0.47 957 0.51
0.32 990 0.36
0.19 1023 0.21
0.08 1057 0.08
— —
— —
0.4 0.6
337 840 470 937 603
388 867 531 963 664
450 895 593 991 746
521 923 664 1019 828
593 953 746 1046 920
674 984 838 1073 1012
766 1015 930 1101 1104
869 1046 1032 1129 1216
981 1079 1155 1160 1339
1093 1112 1277 1190 1461
1226 1145 1420 1220 1640
STANDARD DIRECT DRIVE MOTOR
Medium Speed
208 v 230, 460, 575 v
Watts ESP
782 1.46
821 1.32
861 1.22
900 1.09
940 0.96
979 0.80
1018 0.64
1058 0.50
1097 0.34
— — 0.24
— — 0.15
ALTERNATE BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.8 1.0
1027 756 1108 920
1052 828 1130 991
1075 899 1154 1083
1099 981 1178 1165
1126 1083 1201 1257
1154 1185 1226 1359
1182 1298 1252 1482
1209 1420 1280 1615
1237 1543 1309 1747
1264 1666 1336 1891
1292 1809 1363 2044
—26—
High Speed
208 v
Watts ESP Watts
845 1.46 875
883 1.33 913
921 1.24 950
959 1.11 988
997 0.99 1025
1035 0.83 1063
1073 0.71 1101
1111 0.58 1138
1149 0.39 1176
1187 0.29 1213
1225 0.15 1251
1.2 1.4
1186 1104 1263 1328 1343
1205 1175 1278 1380 1350
1226 1257 1296 1451 1364
1249 1349 1316 1553 1382
1274 1461 1338 1656 1402
1297 1564 1363 1768 1424
1320 1676 1388 1891 1448
1345 1809 1410 2013 1473
1372 1952 1434 2156 1496
1400 2105 1459 2310 1519
1428 2269 1486 2483 1543
230, 460, 575 v
ESP Watts
1.52 949
1.41 988
1.33 1027
1.22 1066
1.11 1105
0.97 1144
0.86 1183
0.75 1222
0.57 1261
0.49 1300
0.34 1340
1.6 1.8
1615 1431 1829
1645 1424 1921
1676 1432 1931
1758 1447 1993
1870 1464 2095
1983 1484 2207
2115 1505 2340
2248 1529 2483
2391 1554 2637
2534 1578 2820
2708 1600 2953