Bryant 581A/B manual 581B120 10 Tons Standard Motor Belt Drive

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

	581B120 (10 TONS) — STANDARD 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	616	0.79	732	689	0.97	904	757	1.16	1083	821	1.36	1271	882	1.57	1465
	3100	632	0.85	796	703	1.04	972	769	1.24	1157	832	1.45	1349	892	1.66	1548
	3200	648	0.93	864	717	1.12	1045	782	1.32	1235	843	1.53	1431	902	1.75	1635
	3300	663	1.00	936	731	1.20	1122	795	1.41	1316	855	1.63	1517	912	1.85	1725
	3400	679	1.09	1012	745	1.29	1203	808	1.50	1402	867	1.72	1608	923	1.95	1820
	3500	695	1.17	1092	760	1.38	1288	821	1.60	1492	879	1.83	1703	934	2.06	1920
	3600	711	1.26	1177	774	1.48	1379	834	1.70	1587	891	1.93	1802	945	2.17	2024
	3700	728	1.36	1266	789	1.58	1473	848	1.81	1686	904	2.04	1906	957	2.29	2132
	3800	744	1.46	1361	804	1.69	1572	861	1.92	1790	916	2.16	2015	969	2.41	2246
	3900	760	1.57	1460	819	1.80	1676	875	2.04	1899	929	2.28	2128	981	2.53	2364
150	4000	777	1.68	1563	834	1.91	1785	889	2.16	2012	942	2.41	2247	993	2.67	2487
	4100	793	1.79	1672	850	2.04	1899	904	2.29	2132	956	2.54	2371	1006	2.80	2615
581B036-	4200	810	1.92	1786	865	2.16	2018	918	2.42	2255	969	2.68	2499	1018	2.95	2748
	4300	826	2.04	1906	880	2.30	2142	932	2.56	2385	983	2.82	2633	1031	3.10	2888
	4400	843	2.18	2031	896	2.44	2272	947	2.70	2520	996	2.97	2773	1044	3.25	3032
	4500	860	2.32	2161	912	2.58	2408	962	2.85	2660	1010	3.13	2918	1057	3.41	3182
	4600	876	2.46	2297	927	2.73	2549	977	3.01	2807	1024	3.29	3070	1070	3.58	3338
	4700	893	2.62	2439	943	2.89	2696	992	3.17	2958	1038	3.46	3226	—	—	—
	4800	910	2.77	2587	959	3.06	2849	1007	3.34	3116	1053	3.63	3390	—	—	—
	4900	927	2.94	2741	975	3.23	3008	1022	3.52	3280	—	—	—	—	—	—
	5000	944	3.11	2901	991	3.40	3173	1037	3.70	3451	—	—	—	—	—	—
	581B120 (10 TONS) — STANDARD 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	939	1.79	1667	994	2.01	1874	1047	2.24	2087	1098	2.47	2307	1147	2.71	2532
	3100	948	1.88	1753	1002	2.11	1965	1054	2.34	2183	1105	2.58	2406	1153	2.83	2635
	3200	957	1.98	1844	1011	2.21	2060	1062	2.45	2283	1112	2.69	2510	1160	2.94	2743
	3300	967	2.08	1939	1020	2.32	2160	1070	2.56	2386	1119	2.81	2618	1167	3.06	2855
	3400	977	2.19	2039	1029	2.43	2264	1079	2.67	2494	1127	2.93	2730	1174	3.19	2971
	3500	987	2.30	2143	1038	2.54	2372	1088	2.80	2607	1135	3.05	2847	1181	3.32	3092
	3600	998	2.41	2251	1048	2.66	2485	1097	2.92	2724	1144	3.18	2968	1189	3.45	3218
	3700	1008	2.54	2364	1058	2.79	2602	1106	3.05	2846	1152	3.32	3094	1198	3.59	3348
	3800	1019	2.66	2482	1068	2.92	2725	1116	3.19	2972	1162	3.46	3226	—	—	—
	3900	1031	2.79	2605	1079	3.06	2852	1126	3.33	3104	1171	3.61	3362	—	—	—
	4000	1042	2.93	2733	1090	3.20	2984	1136	3.48	3241	—	—	—	—	—	—
	4100	1054	3.07	2866	1101	3.35	3122	1146	3.63	3383	—	—	—	—	—	—
	4200	1066	3.22	3004	1112	3.50	3264	—	—	—	—	—	—	—	—	—
	4300	1078	3.38	3148	1123	3.66	3413	—	—	—	—	—	—	—	—	—
	4400	1090	3.54	3297	—	—	—	—	—	—	—	—	—	—	—	—
	4500	1103	3.70	3451	—	—	—	—	—	—	—	—	—	—	—	—
	4600	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
	4700	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
	4800	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
	4900	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
	5000	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
		LEGEND							Refer to page 103 for general Fan Performance Data notes.
	Bhp — Brake Horsepower Input to Fan								NOTES:

Watts — Input Watts to Motor	1. Boldface indicates field-supplied drive is required.
*Motor drive range: 860 to 1080 rpm. All other rpms require field-	2. Maximum continuous bhp is 3.70.
supplied drive.

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