Bryant 581A Gas Heater User Manual


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PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Standard low-medium static drive range is 895 to 1147 rpm. Other rpms require a
field-supplied drive.
Refer to page 262 for general Fan Performance Data notes.
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.
LEGEND
*Alternate high-static drive range is 1040 to 1315. Other rpms require a field-
supplied drive.
Refer to page 262 for general Fan Performance Data notes.
NOTES:
1. Field-supplied motor required.
2. Maximum continuous bhp for the optional motor is 4.26. The maximum con-
tinuous 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.
581A155 (12 TONS) WITH STANDARD MOTOR (High Heat Units)*
Airflow
(Cfm)
Available 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
3750 622 888 0.89 713 1027 1.13 795 1234 1.37 869 1454 1.63 936 1584 1.89
4000 652 1015 1.04 738 1168 1.28 818 1388 1.54 890 1620 1.80 956 1756 2.07
4250 682 1151 1.20 763 1317 1.45 841 1550 1.72 911 1793 1.99 976 1937 2.27
4500 713 1295 1.38 790 1474 1.63 864 1719 1.91 934 1973 2.20 997 2126 2.49
4750 744 1448 1.58 817 1641 1.84 889 1896 2.12 956 2159 2.42 1019 2326 2.72
5000 776 1610 1.80 845 1817 2.06 914 2081 2.35 979 2353 2.66 1041 2536 2.97
5250 808 1783 2.04 874 2003 2.31 940 2277 2.60 1003 2556 2.91 1064 2757 3.24
5500 840 1967 2.29 903 2200 2.57 966 2482 2.87 1028 2768 3.19
1087 2991 3.52
5750 872 2163 2.57 933 2410 2.86 993 2699 3.16
1053 2990 3.49 1110 3237 3.83
6000 905 2373 2.87 963 2634 3.16
1021 2929 3.47 1078 3225 3.81 1134 3497 4.15
6250 937 2596 3.19 994 2872 3.49 1049 3172 3.81 1105 3473 4.15 1159 3769 4.50
581A155 (12 TONS) WITH STANDARD MOTOR (High Heat Units)* (cont)
Airflow
(Cfm)
Available 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
3750 999 1829 2.15 1059 2091 2.42 1117 2343 2.70 1174 2521 2.99 1228 2801 3.29
4000 1017 2010 2.35 1076 2279 2.63 1132 2540 2.91 1186 2738 3.21
1239 3023 3.51
4250 1036 2198 2.56 1093 2474 2.85 1148 2743 3.14
1201 2962 3.44 1253 3251 3.75
4500 1056 2395 2.78 1112 2675 3.08
1166 2951 3.39 1217 3194 3.70 1267 3487 4.01
4750 1077 2601 3.03 1132 2885 3.34
1184 3168 3.65 1235 3435 3.97 1284 3731 4.29
5000 1098 2816 3.29
1152 3104 3.61 1204 3392 3.93 1253 3683 4.26 1301 3981 4.59
5250
1120 3042 3.56 1173 3332 3.90 1224 3626 4.23 1273 3940 4.57 1320 4239 4.91
5500
1142 3279 3.86 1195 3570 4.20 1245 3870 4.55 1293 4203 4.89 1339 4501 5.24
5750 1165 3528 4.18 1217 3819 4.53 1266 4125 4.88 1313 4471 5.24———
6000
1188 3789 4.51 1239 4080 4.88 1288 4389 5.24——————
6250
1212 4062 4.87 1262 4351 5.24—————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor
581A155 (12 TONS) WITH OPTIONAL MOTOR (High Heat Units)*
Airflow
(Cfm)
Available 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
3750 622 888 0.89 713 1027 1.13 795 1234 1.37 869 1454 1.63 936 1584 1.89
4000 652 1015 1.04 738 1168 1.28 818 1388 1.54 890 1620 1.80 956 1756 2.07
4250 682 1151 1.20 763 1317 1.45 841 1550 1.72 911 1793 1.99 976 1937 2.27
4500 713 1295 1.38 790 1474 1.63 864 1719 1.91 934 1973 2.20 997 2126 2.49
4750 744 1448 1.58 817 1641 1.84 889 1896 2.12 956 2159 2.42 1019 2326 2.72
5000 776 1610 1.80 845 1817 2.06 914 2081 2.35 979 2353 2.66 1041 2536 2.97
5250 808 1783 2.04 874 2003 2.31 940 2277 2.60 1003 2556 2.91 1064 2757 3.24
5500 840 1967 2.29 903 2200 2.57 966 2482 2.87 1028 2768 3.19 1087 2991 3.52
5750 872 2163 2.57 933 2410 2.86 993 2699 3.16 1053 2990 3.49 1110 3237 3.83
6000 905 2373 2.87 963 2634 3.16 1021 2929 3.47 1078 3225 3.81 1134 3497 4.15
6250 937 2596 3.19 994 2872 3.49 1049 3172 3.81 1105 3473 4.15
1159 3769 4.50
581A155 (12 TONS) WITH OPTIONAL MOTOR (High Heat Units)* (cont)
Airflow
(Cfm)
Available 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
3750 999 1829 2.15 1059 2091 2.42 1117 2343 2.70 1174 2521 2.99 1228 2801 3.29
4000 1017 2010 2.35 1076 2279 2.63 1132 2540 2.91 1186 2738 3.21 1239 3023 3.51
4250 1036 2198 2.56 1093 2474 2.85 1148 2743 3.14 1201 2962 3.44 1253 3251 3.75
4500 1056 2395 2.78 1112 2675 3.08 1166 2951 3.39 1217 3194 3.70 1267 3487 4.01
4750 1077 2601 3.03 1132 2885 3.34 1184 3168 3.65 1235 3435 3.97
1284 3731 4.29
5000 1098 2816 3.29 1152 3104 3.61 1204 3392 3.93 1253 3683 4.26 1301 3981 4.59
5250 1120 3042 3.56 1173 3332 3.90 1224 3626 4.23
1273 3940 4.57 1320 4239 4.91
5500 1142 3279 3.86 1195 3570 4.20
1245 3870 4.55 1293 4203 4.89 1339 4501 5.24
5750 1165 3528 4.18 1217 3819 4.53 1266 4125 4.88 1313 4471 5.24———
6000
1188 3789 4.51 1239 4080 4.88 1288 4389 5.24——————
6250
1212 4062 4.87 1262 4351 5.24—————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor
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