Bryant 558D Installation, Start-Up And Service Instructions Manual page 22

Table 8 — 558D048 Air Delivery — Vertical Discharge Units (Alternate Motor)
AIRFLOW
(Cfm)
0.1
Rpm Watts
1200 542 168
1300 576 210
1400 610 252
1500 646 294
1600 681 347
1700 718 410
1800 754 473
1900 791 546
2000 828 630
AIRFLOW
(Cfm)
1.1
Rpm Watts
1200 1052 762
1300 1065 846
1400 1087 890
1500 1111 980
1600 1134 1069
1700 1158 1164
1800 1182 1263
1900 1205 1363
2000 1228 1472
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 1000. 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: 840 to 1185 rpm. All other rpms require field-supplied drive.
8. To convert watts to bhp:
watts input x motor efficiency
bhp =
746
Motor efficiency = .75
Table 9 — 558D060 Air Delivery — Vertical Discharge Units (Standard Motor)
AIRFLOW
(Cfm)
208 v
ESP Watts
1500 0.88 750
1600 0.68 780
1700 0.51 810
1800 0.35 839
1900 0.26 873
2000 0.18 905
2100 0.08 940
2200 — —
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
0.2 0.3
Rpm Watts Rpm Watts
616 221 678 278
644 263 704 326
673 315 732 378
704 368 761 436
735 420 790 494
768 483 836 562
801 557 851 641
836 630 832 720
870 714 864 809
ALTERNATE BELT DRIVE MOTOR
External Static Pressure (in. wg)
1.2 1.4
Rpm Watts Rpm Watts
1096 820 1134 835
1101 904 1174 1040
1121 918 1183 1042
1145 1014 1208 1138
1168 1100 1232 1253
1192 1196 1255 1358
1217 1301 1279 1473
1240 1406 1303 1588
1262 1511 1327 1702
Low Speed
230, 460, 575 v
ESP Watts ESP
1.20 791 1.19
1.04 824 1.04
0.89 857 0.89
0.73 891 0.74
0.58 924 0.59
0.42 957 0.44
0.27 990 0.29
0.19 1023 0.19
0.11 1056 0.11
0.03 1096 0.04
— —
ALTERNATE BELT DRIVE MOTOR
External Static Pressure (in. wg)
0.4 0.6
Rpm Watts Rpm Watts
739 336 842
764 389 867
791 441 889
818 504 912
845 567 920
873 641 965
900 725 992
828 809 1019
858 904 1046
1.6 1.8
Rpm Watts Rpm Watts
1203 885 1242
1229 1100 1277
1255 1167 1305
1274 1272 1337
1291 1396 1350
1314 1511 1370
1381 1635 1393
1408 1769 1417
1436 1894 1440
STANDARD DIRECT DRIVE MOTOR
Medium Speed
208 v 230, 460, 575 v
Watts ESP
782 1.36
821 1.22
861 1.09
900 0.96
940 0.86
979 0.73
1018 0.59
1035 0.46
1076 0.34
1113 0.19
— — 0.09
—22—
0.7
Rpm Watts Rpm
462 886 525 929
525 910 588 952
578 933 651 976
641 957 720 1001
695 931 772 1023
777 1005 853 1045
858 1032 940 1071
950 1058 1037 1097
1053 1085 1139 1124
969
1029
1190
1350
1558
1738
1907
2068
2229
High Speed
208 v
Watts ESP Watts
845 1.38 875
883 1.25 913
921 1.13 950
959 1.00 988
997 0.88 1025
1035 0.78 1063
1073 0.63 1101
1111 0.49 1138
1149 0.41 1176
1187 0.22 1213
1225 0.12 1251
0.8 1.0
Watts Rpm Watts
588 1008 704
651 1029 788
725 1052 826
777 1076 905
848 1100 995
930 1124 1084
1022 1147 1174
1124 1169 1263
1237 1194 1373
230, 460, 575 v
ESP Watts
1.44 949
1.33 988
1.22 1027
1.11 1066
1.00 1105
0.92 1144
0.81 1183
0.69 1222
0.59 1261
0.43 1300
0.34 1340