Bryant 581A/B 3900 705 1269 773 1503, 581B120 10 Tons HIGH-STATIC Motor Belt DRIVE, 1230, 1239

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

581B120 (10 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
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
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
4100	734	1.55	1449	799	1.82	1695	860	2.08	1942	917	2.35	2192	970	2.62	2443	581B036
4600	807	2.12	1975	867	2.41	2250	923	2.71	2527	976	3.01	2805	1027	3.31	3085
4200	748	1.66	1545	813	1.93	1797	872	2.20	2050	928	2.47	2305	981	2.75	2562
4300	763	1.76	1646	826	2.04	1903	885	2.32	2162	940	2.60	2423	992	2.88	2686
4400	778	1.88	1751	840	2.16	2014	898	2.44	2279	952	2.73	2546	1004	3.02	2814
4500	792	1.99	1860	853	2.28	2130	910	2.57	2401	964	2.87	2673	1015	3.16	2947
4700	822	2.25	2094	881	2.55	2375	936	2.85	2658	989	3.15	2942	1038	3.46	3227	-150
4800	837	2.38	2218	895	2.69	2505	949	3.00	2794	1001	3.31	3083	1050	3.62	3375
4900	852	2.52	2347	909	2.83	2640	963	3.15	2935	1014	3.46	3230	1062	3.78	3528
5000	867	2.66	2482	923	2.98	2781	976	3.30	3081	1026	3.63	3383	1074	3.95	3685
581B120 (10 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
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	1221	4.32	4031
4400	1053	3.31	3085	1100	3.60	3357	1145	3.90	3632	1188	4.19	3909	1230	4.49	4187
4500	1064	3.46	3224	1110	3.76	3502	1155	4.06	3782	1198	4.36	4064	1239	4.66	4348
4600	1075	3.61	3367	1121	3.91	3650	1165	4.22	3937	1208	4.53	4224	1249	4.84	4514
4700	1086	3.77	3515	1131	4.08	3805	1175	4.39	4096	1217	4.71	4389	1258	5.02	4684
4800	1097	3.93	3668	1142	4.25	3963	1186	4.57	4260	1228	4.89	4559	1268	5.21	4860
4900	1109	4.10	3826	1153	4.43	4128	1196	4.75	4430	1238	5.08	4734	—	—	—
5000	1120	4.28	3990	1164	4.61	4296	1207	4.94	4604	—	—	—	—	—	—

LEGEND

Bhp — Brake Horsepower Input to Fan

Watts — Input Watts to Motor

*Motor drive range: 830 to 1130 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 5.25.

125