Fan Performance - Horizontal Discharge Units (Cont) - Bryant 581A/B Product Information Manual

581B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE)*
Airflow
0.2
(Cfm)
Rpm Bhp
900 553 0.14
1000 582 0.16
1100 612 0.20
1200 643 0.23
1300 675 0.28
1400 707 0.33
1500 740 0.38
581B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)
Airflow
1.2
(Cfm)
Rpm Bhp
900 1019 0.64
1000 1042 0.70
1100 1065 0.77
1200 1089 0.84
1300 1113 0.92
1400 1138 1.01
1500 1163 1.10
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive range: 680 to 1044 rpm. All other rpms require field-
supplied drive.
581B036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*
Airflow
0.2
(Cfm)
Rpm Bhp
900 553 0.14
1000 582 0.16
1100 612 0.20
1200 643 0.23
1300 675 0.28
1400 707 0.33
1500 740 0.38
581B036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)
Airflow
1.2
(Cfm)
Rpm Bhp
900 1019 0.64
1000 1042 0.70
1100 1065 0.77
1200 1089 0.84
1300 1113 0.92
1400 1138 1.01
1500 1163 1.10
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Motor drive range: 1075 to 1455 rpm. All other rpms require field-
supplied drive.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS
External Static Pressure (in. wg)
0.4
Watts Rpm Bhp Watts
134 681 0.22 221
163 707 0.26 257
196 734 0.30 297
234 762 0.34 343
277 790 0.40 394
326 819 0.45 452
382 849 0.52 515
External Static Pressure (in. wg)
1.4
Watts Rpm Bhp Watts
640 1084 0.76 760
700 1107 0.83 825
765 1130 0.90 896
837 1153 0.98 974
915 1177 1.06 1058
1000 1201 1.15 1149
1092 — — —
External Static Pressure (in. wg)
0.4
Watts Rpm Bhp Watts
134 681 0.22 221
163 707 0.26 257
196 734 0.30 297
234 762 0.34 343
277 790 0.40 394
326 819 0.45 452
382 849 0.52 515
External Static Pressure (in. wg)
1.4
Watts Rpm Bhp Watts
640 1084 0.76 760
700 1107 0.83 825
765 1130 0.90 896
837 1153 0.98 974
915 1177 1.06 1058
1000 1201 1.15 1149
1092 1226 1.25 1247
0.6
Rpm Bhp Watts Rpm
782 0.32 316 870
807 0.36 358 894
833 0.41 405 919
859 0.46 458 944
886 0.52 517 969
913 0.58 581 996
941 0.66 653 1023
1.6
Rpm Bhp Watts Rpm
1146 0.89 885 1203
1168 0.96 956 1225
1190 1.04 1032 1247
1213 1.12 1115 —
— — — —
— — — —
— — — —
See page 103 for general fan performance notes.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.20.
0.6
Rpm Bhp Watts Rpm
782 0.32 316 870
807 0.36 358 894
833 0.41 405 919
859 0.46 458 944
886 0.52 517 969
913 0.58 581 996
941 0.66 653 1023
1.6
Rpm Bhp Watts Rpm
1146 0.89 885 1203
1168 0.96 956 1225
1190 1.04 1032 1247
1213 1.12 1115 1270
1237 1.21 1205 1293
1261 1.31 1303 1317
1285 1.41 1407 1341
See page 103 for general fan performance notes.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
115
0.8 1.0
Bhp Watts Rpm Bhp
0.42 417 948 0.53
0.47 466 971 0.58
0.52 519 995 0.64
0.58 579 1020 0.71
0.65 644 1044 0.78
0.72 716 1070 0.86
0.80 795 1096 0.95
1.8 2.0
Bhp Watts Rpm Bhp
1.02 1016 1258 1.16
1.10 1091 — —
1.18 1173 — —
— — — —
— — — —
— — — —
— — — —
0.8 1.0
Bhp Watts Rpm Bhp
0.42 417 948 0.53
0.47 466 971 0.58
0.52 519 995 0.64
0.58 579 1020 0.71
0.65 644 1044 0.78
0.72 716 1070 0.86
0.80 795 1096 0.95
1.8 2.0
Bhp Watts Rpm Bhp
1.02 1016 1258 1.16
1.10 1091 1279 1.24
1.18 1173 1301 1.33
1.27 1262 1324 1.42
1.36 1358 1347 1.52
1.47 1461 1370 1.63
1.58 1571 1394 1.75
Watts
526
580
639
705
777
855
941
Watts
1152
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—
—
—
—
—
Watts
526
580
639
705
777
855
941
Watts
1152
1232
1319
1413
1514
1623
1740