Bryant 581A - Manual (Page 16)

AIR DELIVERY (cont)
581A180 (15 TON)
Airflow
(Cfm)
Standard Belt-Drive Motor
External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
4500 630 805 0.9 741 1059 1.2 846 1341 1.5 945 1653 1.9 1039 1993 2.2
4800 659 943 1.1 765 1208 1.4 865 1497 1.7 961 1816 2.0 1052 2163 2.4
5100 688 1094 1.2 789 1371 1.5 885 1668 1.9 977 1993 2.2 1064 2345 2.6
5400 717 1262 1.4 814 1550 1.7 907 1856 2.1 994 2187 2.4 1079 2546 2.8
5700 748 1450 1.6 842 1752 2.0 930 2067 2.3 1015 2406 2.7 1096 2770 3.1
6000 776 1648 1.8 867 1963 2.2 952 2289 2.6 1034 2635 2.9 1112 3004 3.4
6300 804 1861 2.1 892 2190 2.5 975 2526 2.8 1053 2880 3.2 1129 3256 3.6
6600 835 2103 2.4 919 2445 2.7 1000 2793 3.1 1076 3156 3.5 1149 3540 4.0
6900 863 2356 2.6 946 2712 3.0 1024 3072 3.4 1098 3445 3.9 1169 3835 4.3
7200 892 2628 2.9 972 2998 3.4 1049 3371 3.8 1120 3754 4.2 1189 4152 4.6
7500 923 2933 3.3 1001 3318 3.7 1076 3704 4.1 1146 4098 4.6 1213 4506 5.0
581A180 (15 TON) (cont)
Airflow
(Cfm)
Standard Belt-Drive Motor
External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
4500 1128 2355 2.6 1211 2734 3.1 1289 3127 3.5 1363 3531 4.0 1433 3944 4.4
4800 1138 2533 2.8 1219 2921 3.3 1297 3325 3.7 1370 3742 4.2 1440 4170 4.7
5100 1148 2722 3.0 1228 3119 3.5 1305 3532 4.0 1377 3961 4.4 1447 4400 4.9
5400 1160 2928 3.3 1238 3332 3.7 1313 3755 4.2 1385 4192 4.7 1454 4643 5.2
5700 1175 3158 3.5 1251 3569 4.0 1324 3999 4.5 1395 4445 5.0 1462 4906 5.5
6000 1188 3398 3.8 1262 3814 4.3 1334 4250 4.8 1403 4704 5.3 1470 5173 5.8
6300 1203 3654 4.1 1275 4075 4.6 1344 4517 5.1 1412 4976 5.6 1478 5453 6.1
6400 1221 3944 4.4 1290 4370 4.9 1358 4817 5.4 1424 5283 5.9 1489 5765 6.5
6900 1238 4245 4.8 1305 4676 5.2 1371 5128 5.7 1436 5598 6.3 1499 6087 6.8
7200 1256 4569 5.1 1322 5006 5.6 1386 5463 6.1 1449 5938 6.6 1509 6420 7.2
7500 1278 4930 5.5 1341 5373 6.0 1403 5835 6.5 1465 6316 7.1 1515 6733 7.5
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Input Watts to Motor
NOTES:
1. Boldface indicates standard operating range.
2. Indicates field-supplied motor and drive required.
3. All other numbers indicate field-supplied drive required.
4.
indicates maximum bhp/watts of standard motor and drive.
5. Factory shipped motor drive range is 1194 to 1526 rpm. Other rpms
require a field-supplied drive.
6. Static pressure losses (i.e., economizer) must be added to external
static pressure before entering Air Delivery table. See page 18 for
accessory/FIOP static pressure information.
7. Interpolation is permissible. Do not extrapolate.
8. Maximum continuous bhp is 5.9, and the maximum continuous watts
are 5180. Extensive motor and drive testing on these units ensures
that the full horsepower range of the motor can be utilized with con-
fidence. Using your fan motors up to the wattage ratings shown will
not result in nuisance tripping or premature motor failure. Unit war-
ranty will not be affected.
16