252
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Standard low-medium static drive range is 873 to 1021 rpm. Alternate
high-static drive range is 1025 to 1200. Other rpms require a field-
supplied drive.
Refer to page 262 for general Fan Performance Data notes.
NOTES:
1. Maximum continuous bhp for the standard motor is 6.13. The max-
imum continuous watts is 5180. 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.
2. Fan performance is identical for horizontal discharge applications
using Bryant horizontal adapter curb.
581A180 (15 TONS) (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
4500 753 1307 1.53 786 1404 1.65 861 1644 1.93 932 1893 2.22 997 2150 2.52
4800 747 1384 1.62 818 1603 1.88 890 1852 2.17 958 2108 2.47 1022 2373 2.78
5100 775 1571 1.84 850 1822 2.14 920 2079 2.44 986 2344 2.75 1048 2616 3.07
5700 849 2054 2.41 918 2323 2.73 982 2598 3.05 1044 2879 3.38 1102 3166 3.71
6000 886 2329 2.73 952 2607 3.06 1015 2891 3.39 1074 3180 3.73 1130 3474 4.08
6300 924 2628 3.08 987 2915 3.42 1047 3207 3.76 1105 3504 4.11 1160 3807 4.46
6600 962 2951 3.46 1023 3246 3.81 1081 3547 4.16 1136 3853 4.52 1190 4163 4.88
6900 1000 3298 3.87 1059 3603 4.23 1115 3912 4.59 1168 4225 4.96 1220 4543 5.33
7200 1038 3672 4.31 1095 3986 4.67 1149 4303 5.05 1201 4625 5.42 1251 4950 5.81
7500 1077 4072 4.78 1131 4394 5.15 1184 4720 5.54 1234 5050 5.92 — — —
581A180 (15 TONS) (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
4500 1060 2414 2.83 1119 2685 3.15 1175 2964 3.48 1230 3250 3.81 1282 3542 4.15
4800 1082 2644 3.10 1140 2922 3.43 1195 3207 3.76 1248 3498 4.10 1299 3795 4.45
5100 1106 2894 3.39 1163 3178 3.73 1216 3470 4.07 1268 3767 4.42 1319 4071 4.77
5700 1157 3459 4.06 1211 3757 4.41 1262 4061 4.76 1312 4371 5.13 1360 4686 5.50
6000 1184 3774 4.43 1236 4080 4.79 1287 4391 5.15 1335 4707 5.52 1382 5029 5.90
6300 1212 4114 4.83 1263 4427 5.19 1312 4745 5.57 1359 5067 5.94 — — —
6600 1241 4478 5.25 1290 4798 5.63 1338 5122 6.01 — — — — — —
6900 1270 4866 5.71 — — ——————————
7200 ———————————————
7500 ———————————————
581A180 (15 TONS) (High Heat Units)* (cont)
Airflow
(Cfm)
Available External Static Pressure (in. wg)
2.2 2.4 2.6 2.8 3.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
4500 1332 3841 4.50 1381 4145 4.86 1428 4456 5.23 1473 4772 5.60 1518 5095 5.98
4800 1349 4100 4.81 1397 4409 5.17 1443 4725 5.54 1488 5046 5.92 — — —
5100 1367 4380 5.14 1414 4695 5.51 1460 5016 5.88 — — — — — —
5700 1407 5007 5.87 — — ——————————
6000 ———————————————
6300 ———————————————
6600 ———————————————
6900 ———————————————
7200 ———————————————
7500 ———————————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor