Bryant 581A/B manual 581B102 81/2 Tons HIGH-STATIC Motor Belt Drive

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

581B102 (81/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*
Airflow						External Static Pressure (in. wg)
		0.2			0.4			0.6			0.8			1.0
(Cfm)
	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts
2500	513	0.45	423	603	0.62	576	682	0.78	732	753	0.96	892	817	1.13	1055
2600	526	0.50	463	614	0.67	621	692	0.84	783	761	1.02	948	825	1.20	1117
2700	539	0.54	505	625	0.72	670	702	0.90	837	770	1.08	1008	834	1.27	1182
2800	552	0.59	551	637	0.77	721	712	0.96	894	780	1.15	1070	842	1.34	1250
2900	565	0.64	599	648	0.83	775	722	1.02	954	789	1.22	1136	851	1.42	1321
3000	579	0.70	651	660	0.89	832	732	1.09	1017	799	1.29	1204	860	1.50	1395
3100	592	0.76	706	672	0.96	893	743	1.16	1083	808	1.37	1276	869	1.58	1471
3200	606	0.82	764	684	1.03	957	754	1.24	1153	818	1.45	1351	878	1.66	1552
3300	620	0.88	825	696	1.10	1024	765	1.31	1225	829	1.53	1429	888	1.75	1636
3400	634	0.95	890	709	1.17	1095	777	1.40	1302	839	1.62	1511	897	1.85	1723
3500	648	1.03	958	721	1.25	1169	788	1.48	1381	850	1.71	1597	907	1.95	1815
3600	662	1.10	1030	734	1.34	1246	800	1.57	1465	860	1.81	1686	917	2.05	1909	581B036
4100	734	1.55	1449	799	1.82	1695	860	2.08	1942	917	2.35	2192	970	2.62	2443
3700	676	1.19	1106	747	1.42	1328	811	1.66	1552	871	1.91	1779	927	2.15	2008
3800	690	1.27	1185	760	1.52	1414	823	1.76	1644	882	2.01	1876	938	2.26	2111
3900	705	1.36	1269	773	1.61	1503	835	1.86	1739	894	2.12	1977	948	2.38	2217
4000	719	1.45	1357	786	1.71	1597	848	1.97	1838	905	2.23	2082	959	2.50	2328
4200	748	1.66	1545	813	1.93	1797	872	2.20	2050	928	2.47	2305	981	2.75	2562	-150
4300	763	1.76	1646	826	2.04	1903	885	2.32	2162	940	2.60	2423	992	2.88	2686
581B102 (81/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)
Airflow						External Static Pressure (in. wg)
		1.2			1.4			1.6			1.8			2.0
(Cfm)
	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts
2500	877	1.31	1222	933	1.49	1392	986	1.68	1565	1037	1.87	1742	1085	2.06	1921
2600	885	1.38	1289	940	1.57	1464	993	1.76	1643	1043	1.96	1824	1091	2.15	2008
2700	892	1.46	1359	948	1.65	1540	1000	1.85	1723	1049	2.05	1909	1097	2.25	2099
2800	900	1.54	1432	955	1.74	1618	1007	1.94	1807	1056	2.14	1998	1103	2.35	2192
2900	908	1.62	1508	963	1.82	1699	1014	2.03	1893	1063	2.24	2089	1110	2.45	2289
3000	917	1.70	1587	970	1.91	1784	1021	2.13	1983	1070	2.34	2185	1117	2.56	2389
3100	925	1.79	1670	979	2.01	1872	1029	2.23	2076	1077	2.45	2283	1123	2.67	2492
3200	934	1.88	1756	987	2.10	1963	1037	2.33	2172	1085	2.56	2384	1131	2.79	2599
3300	943	1.98	1845	995	2.21	2057	1045	2.44	2272	1092	2.67	2490	1138	2.91	2710
3400	952	2.08	1939	1004	2.31	2156	1053	2.55	2376	1100	2.79	2599	1145	3.03	2824
3500	961	2.18	2035	1013	2.42	2258	1062	2.66	2483	1108	2.91	2711	1153	3.15	2942
3600	971	2.29	2135	1022	2.53	2364	1070	2.78	2595	1116	3.03	2827	1161	3.29	3063
3700	981	2.40	2240	1031	2.65	2473	1079	2.91	2709	1125	3.16	2948	1169	3.42	3189
3800	990	2.52	2348	1040	2.77	2587	1088	3.03	2828	1133	3.30	3073	1177	3.56	3319
3900	1000	2.64	2459	1050	2.90	2705	1097	3.17	2951	1142	3.43	3201	1186	3.70	3452
4000	1011	2.76	2576	1059	3.03	2826	1106	3.30	3079	1151	3.58	3334	1194	3.85	3591
4100	1021	2.89	2697	1069	3.17	2953	1116	3.44	3210	1160	3.72	3471	1203	4.00	3733
4200	1031	3.03	2822	1079	3.31	3083	1125	3.59	3347	1169	3.87	3612	1212	4.16	3880
4300	1042	3.16	2951	1089	3.45	3218	1135	3.74	3487	1179	4.03	3758	—	—	—

LEGEND

Bhp — Brake Horsepower Input to Fan

Watts — Input Watts to Motor

*Motor drive range: 860 to 1080 rpm. All other rpms require field-supplied drive.

See page 103 for general fan performance notes.

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 4.20.

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