Bryant 581A/B Product Information Manual page 219

581A155 (12 TONS) WITH STANDARD MOTOR (High Heat Units)*
Airflow
0.2
(Cfm)
Rpm Watts
3750 622 888
4000 652 1015
4250 682 1151
4500 713 1295
4750 744 1448
5000 776 1610
5250 808 1783
5500 840 1967
5750 872 2163
6000 905 2373
6250 937 2596
581A155 (12 TONS) WITH STANDARD MOTOR (High Heat Units)* (cont)
Airflow
1.2
(Cfm)
Rpm Watts
3750 999 1829
4000 1017 2010
4250 1036 2198
4500 1056 2395
4750 1077 2601
5000 1098 2816
5250 1120 3042
5500 1142 3279
5750 1165 3528
6000 1188 3789
6250 1212 4062
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Standard low-medium static drive range is 895 to 1147 rpm. Other rpms require a
field-supplied drive.
Refer to page 230 for general Fan Performance Data notes.
581A155 (12 TONS) WITH OPTIONAL MOTOR (High Heat Units)*
Airflow
0.2
(Cfm)
Rpm Watts
3750 622 888
4000 652 1015
4250 682 1151
4500 713 1295
4750 744 1448
5000 776 1610
5250 808 1783
5500 840 1967
5750 872 2163
6000 905 2373
6250 937 2596
581A155 (12 TONS) WITH OPTIONAL MOTOR (High Heat Units)* (cont)
Airflow
1.2
(Cfm)
Rpm Watts
3750 999 1829
4000 1017 2010
4250 1036 2198
4500 1056 2395
4750 1077 2601
5000 1098 2816
5250 1120 3042
5500 1142 3279
5750 1165 3528
6000 1188 3789
6250 1212 4062
LEGEND
Bhp — Brake Horsepower
Watts — Input Watts to Motor
*Alternate high-static drive range is 1040 to 1315. Other rpms require a field-
supplied drive.
Refer to page 230 for general Fan Performance Data notes.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
Available External Static Pressure (in. wg)
0.4
Bhp Rpm Watts Bhp
0.89 713 1027 1.13
1.04 738 1168 1.28
1.20 763 1317 1.45
1.38 790 1474 1.63
1.58 817 1641 1.84
1.80 845 1817 2.06
2.04 874 2003 2.31
2.29 903 2200 2.57
2.57 933 2410 2.86
2.87 963 2634 3.16
3.19 994 2872 3.49
Available External Static Pressure (in. wg)
1.4
Bhp Rpm Watts Bhp
2.15 1059 2091 2.42
2.35 1076 2279 2.63
2.56 1093 2474 2.85
2.78 1112 2675 3.08
3.03 1132 2885 3.34
3.29 1152 3104 3.61
3.56 1173 3332 3.90
3.86 1195 3570 4.20
4.18 1217 3819 4.53
4.51 1239 4080 4.88
4.87 1262 4351 5.24
Available External Static Pressure (in. wg)
0.4
Bhp Rpm Watts Bhp
0.89 713 1027 1.13
1.04 738 1168 1.28
1.20 763 1317 1.45
1.38 790 1474 1.63
1.58 817 1641 1.84
1.80 845 1817 2.06
2.04 874 2003 2.31
2.29 903 2200 2.57
2.57 933 2410 2.86
2.87 963 2634 3.16
3.19 994 2872 3.49
Available External Static Pressure (in. wg)
1.4
Bhp Rpm Watts Bhp
2.15 1059 2091 2.42
2.35 1076 2279 2.63
2.56 1093 2474 2.85
2.78 1112 2675 3.08
3.03 1132 2885 3.34
3.29 1152 3104 3.61
3.56 1173 3332 3.90
3.86 1195 3570 4.20
4.18 1217 3819 4.53
4.51 1239 4080 4.88
4.87 1262 4351 5.24
0.6
Rpm Watts Bhp Rpm
795 1234 1.37 869
818 1388 1.54 890
841 1550 1.72 911
864 1719 1.91 934
889 1896 2.12 956
914 2081 2.35 979
940 2277 2.60 1003
966 2482 2.87 1028
993 2699 3.16 1053
1021 2929 3.47 1078
1049 3172 3.81 1105
1.6
Rpm Watts Bhp Rpm
1117 2343 2.70 1174
1132 2540 2.91 1186
1148 2743 3.14 1201
1166 2951 3.39 1217
1184 3168 3.65 1235
1204 3392 3.93 1253
1224 3626 4.23 1273
1245 3870 4.55 1293
1266 4125 4.88 1313
1288 4389 5.24 —
— — — —
NOTES:
1. Field-supplied motor required.
2. Maximum continuous bhp for the standard motor is 3.13 (for 208/230 and
460-v units) or 3.38 (for 575-v units). The maximum continuous watts is
2700 (for 208/230 and 460-v units) or 3065 (for 575-v units). Do not adjust
motor rpm such that motor maximum bhp and/or watts is exceeded at the
maximum operating cfm. See Evaporator Fan Motor Data tables for more
information.
3. Fan performance is identical for horizontal discharge applications using
Bryant horizontal adapter curb.
0.6
Rpm Watts Bhp Rpm
795 1234 1.37 869
818 1388 1.54 890
841 1550 1.72 911
864 1719 1.91 934
889 1896 2.12 956
914 2081 2.35 979
940 2277 2.60 1003
966 2482 2.87 1028
993 2699 3.16 1053
1021 2929 3.47 1078
1049 3172 3.81 1105
1.6
Rpm Watts Bhp Rpm
1117 2343 2.70 1174
1132 2540 2.91 1186
1148 2743 3.14 1201
1166 2951 3.39 1217
1184 3168 3.65 1235
1204 3392 3.93 1253
1224 3626 4.23 1273
1245 3870 4.55 1293
1266 4125 4.88 1313
1288 4389 5.24 —
— — — —
NOTES:
1. Field-supplied motor required.
2. Maximum continuous bhp for the optional motor is 4.26. The maximum contin-
uous watts is 3610. Do not adjust motor rpm such that motor maximum bhp
and/or watts is exceeded at the maximum operating cfm. See Evaporator Fan
Motor Data tables for more information.
3. Fan performance is identical for horizontal discharge applications using
Bryant horizontal adapter curb.
219
0.8 1.0
Watts Bhp Rpm Watts
1454 1.63 936 1584
1620 1.80 956 1756
1793 1.99 976 1937
1973 2.20 997 2126
2159 2.42 1019 2326
2353 2.66 1041 2536
2556 2.91 1064 2757
2768 3.19 1087 2991
2990 3.49 1110 3237
3225 3.81 1134 3497
3473 4.15 1159 3769
1.8 2.0
Watts Bhp Rpm Watts
2521 2.99 1228 2801
2738 3.21 1239 3023
2962 3.44 1253 3251
3194 3.70 1267 3487
3435 3.97 1284 3731
3683 4.26 1301 3981
3940 4.57 1320 4239
4203 4.89 1339 4501
4471 5.24 — —
— — — —
— — — —
0.8 1.0
Watts Bhp Rpm Watts
1454 1.63 936 1584
1620 1.80 956 1756
1793 1.99 976 1937
1973 2.20 997 2126
2159 2.42 1019 2326
2353 2.66 1041 2536
2556 2.91 1064 2757
2768 3.19 1087 2991
2990 3.49 1110 3237
3225 3.81 1134 3497
3473 4.15 1159 3769
1.8 2.0
Watts Bhp Rpm Watts
2521 2.99 1228 2801
2738 3.21 1239 3023
2962 3.44 1253 3251
3194 3.70 1267 3487
3435 3.97 1284 3731
3683 4.26 1301 3981
3940 4.57 1320 4239
4203 4.89 1339 4501
4471 5.24 — —
— — — —
— — — —
Bhp
1.89
2.07
2.27
2.49
2.72
2.97
3.24
3.52
3.83
4.15
4.50
Bhp
3.29
3.51
3.75
4.01
4.29
4.59
4.91
5.24
—
—
—
Bhp
1.89
2.07
2.27
2.49
2.72
2.97
3.24
3.52
3.83
4.15
4.50
Bhp
3.29
3.51
3.75
4.01
4.29
4.59
4.91
5.24
—
—
—