Bryant 581B Gas Heater User Manual


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PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS
LEGEND See page 74 for general fan performance notes.
LEGEND
*Motor drive range: 685 to 1045 rpm. All other rpms require a field-supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.20.
3. See page 74 for general fan performance notes.
LEGEND
*Motor drive range: 1075 to 1455 rpm. All other rpms require a field-supplied
drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See page 74 for general fan performance notes.
580F036 (3 TONS) — STANDARD MOTOR (DIRECT DRIVE)
Airflow
(Cfm)
Low Speed High Speed
208 V 230, 460, 575 V 208 V 230, 460, 575 V
ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts
900 0.54 0.21 253 0.57 0.23 277 0.55 0.26 307 0.60 0.31 363
1000 0.49 0.23 270 0.51 0.25 292 0.52 0.27 321 0.53 0.32 374
1100 0.43 0.24 287 0.45 0.26 307 0.46 0.28 335 0.49 0.33 385
1200 0.39 0.26 304 0.40 0.27 323 0.38 0.29 349 0.43 0.34 397
1300 0.33 0.27 321 0.35 0.29 338 0.35 0.31 364 0.36 0.34 408
1400 0.26 0.29 338 0.28 0.30 354 0.29 0.32 378 — — —
1500 0.21 0.30 355 0.23 0.31 369 0.24 0.33 392 — — —
Bhp — Brake Horsepower Input to Fan
ESP — External Static Pressure (in. wg)
580F036 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)*
Airflow
(Cfm)
External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 607 0.14 142 745 0.22 221 856 0.31 304 952 0.39 393 1037 0.49 485
1000 640 0.18 174 775 0.26 261 884 0.35 351 978 0.45 446 1062 0.55 545
1100 674 0.21 212 805 0.31 307 912 0.41 404 1005 0.51 506 1089 0.61 611
1200 708 0.26 256 836 0.36 359 941 0.47 464 1033 0.57 572 1116 0.69 683
1300 743 0.31 307 868 0.42 417 971 0.53 530 1062 0.65 645 1143 0.77 764
1400 780 0.37 364 900 0.49 483 1002 0.61 603 1091 0.73 726 1172 0.86 851
1500 816 0.43 428 934 0.56 556 1033 0.69 685 1121 0.82 815 1201 0.95 947
580F036 (3 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 1114 0.59 582 1186 0.69 684 1253 0.79 789 1316 0.90 898 1375 1.02 1010
1000 1139 0.65 648 1210 0.76 754 1277 0.87 865 1340 0.98 979 1399 1.10 1097
1100 1165 0.72 720 1236 0.84 832 1302 0.95 948 1364 1.07 1068 1423 1.20 1191
1200 1191 0.80 799 1261 0.92 917 1327 1.04 1039 1389 1.17 1165 —— —
1300 1218 0.89 885 1288 1.02 1010 1353 1.14 1138 —— — —— —
1400 1246 0.99 980 1315 1.12 1111 —— — —— — —— —
1500 1274 1.09 1083 —— — —— — —— — —— —
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
580F036 (3 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 Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 607 0.14 142 745 0.22 221 856 0.31 304 952 0.39 393 1037 0.49 485
1000 640 0.18 174 775 0.26 261 884 0.35 351 978 0.45 446 1062 0.55 545
1100 674 0.21 212 805 0.31 307 912 0.41 404 1005 0.51 506 1089 0.61 611
1200 708 0.26 256 836 0.36 359 941 0.47 464 1033 0.57 572 1116 0.69 683
1300 743 0.31 307 868 0.42 417 971 0.53 530 1062 0.65 645 1143 0.77 764
1400 780 0.37 364 900 0.49 483 1002 0.61 603 1091 0.73 726 1172 0.86 851
1500 816 0.43 428 934 0.56 556 1033 0.69 685 1121 0.82 815 1201 0.95 947
580F036 (3 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 Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
900 1114 0.59 582 1186 0.69 684 1253 0.79 789 1316 0.90 898 1375 1.02 1010
1000 1139 0.65 648 1210 0.76 754 1277 0.87 865 1340 0.98 979 1399 1.10 1097
1100 1165 0.72 720 1236 0.84 832 1302 0.95 948 1364 1.07 1068 1423 1.20 1191
1200 1191 0.80 799 1261 0.92 917 1327 1.04 1039 1389 1.17 1165 1448 1.30 1293
1300 1218 0.89 885 1288 1.02 1010 1353 1.14 1138 1414 1.28 1270 1473 1.41 1404
1400 1246 0.99 980 1315 1.12 1111 1379 1.25 1246 1440 1.39 1383 1499 1.53 1523
1500 1274 1.09 1083 1342 1.23 1221 1406 1.37 1362 1467 1.51 1505 1525 1.66 1652
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
580F036-151
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