Bryant 581A/B manual 580F072,073 6 Tons Standard Motor Belt Drive

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

580F072,073 (6 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
1800		967	0.65	579	1077	0.81	718		1172	0.96	856	1257	1.12	993	1334	1.27	1130
1900		1007	0.75	663	1115	0.91	811		1208	1.08	957	1291	1.24	1101	1368	1.40	1246
2000		1048	0.85	757	1153	1.03	913		1244	1.20	1066	1326	1.37	1219	1401	1.54	1371
2100		1090	0.97	859	1191	1.15	1023		1281	1.33	1185	1361	1.51	1345	1435	1.69	1505
2200		1131	1.09	970	1230	1.29	1143		1318	1.48	1313	1397	1.67	1481	1470	1.86	1649
2300		1173	1.23	1091	1269	1.43	1273		1355	1.63	1451	1433	1.83	1627	1505	2.03	1803
2400		1215	1.38	1223	1309	1.59	1413		1393	1.80	1600	1470	2.01	1784	1540	2.21	1967
2500		1258	1.54	1365	1349	1.76	1564		1431	1.98	1759	1506	2.20	1951	—	—	—
2600		1300	1.71	1518	1389	1.94	1726		1470	2.17	1929	1544	2.40	2130	—	—	—
2700		1343	1.90	1683	1430	2.14	1899		1509	2.38	2111	—	—	—	—	—	—
2800		1386	2.09	1860	1471	2.35	2085		—	—	—	—	—	—	—	—	—
2900		1429	2.31	2050	—	—	—		—	—	—	—	—	—	—	—	—
3000		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
580F072,073 (6 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
1800		1406	1.43	1268	1473	1.58	1407		1535	1.74	1548	1595	1.90	1690	1652	2.06	1833
1900		1438	1.57	1391	1504	1.73	1537		1567	1.90	1685	1626	2.06	1833	1682	2.23	1983
2000		1471	1.72	1523	1536	1.89	1677		1598	2.06	1831	1657	2.24	1986	—	—	—
2100		1504	1.87	1665	1569	2.06	1825		1630	2.24	1986	—	—	—	—	—	—
2200		1538	2.04	1816	1602	2.23	1984		—	—	—	—	—	—	—	—	—
2300		1572	2.23	1978	—	—	—		—	—	—	—	—	—	—	—	—
2400		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2500		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2600		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2700		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2800		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2900		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
3000		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
	LEGEND									NOTES:
Bhp —	Brake Horsepower Input to Fan									1. Boldface indicates field-supplied drive is required.
										2. Maximum continuous bhp is 2.40.
Watts —	Input Watts to Motor
										3. See page 70 for general fan performance notes.

*Motor drive range: 1070 to 1460 rpm. All other rpms require a field-supplied drive.

580F036-151

580F072,073 (6 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
1800	967	0.65	579	1077	0.81	718		1172	0.96	856	1257	1.12	993	1334	1.27	1130
1900	1007	0.75	663	1115	0.91	811		1208	1.08	957	1291	1.24	1101	1368	1.40	1246
2000	1048	0.85	757	1153	1.03	913		1244	1.20	1066	1326	1.37	1219	1401	1.54	1371
2100	1090	0.97	859	1191	1.15	1023		1281	1.33	1185	1361	1.51	1345	1435	1.69	1505
2200	1131	1.09	970	1230	1.29	1143		1318	1.48	1313	1397	1.67	1481	1470	1.86	1649
2300	1173	1.23	1091	1269	1.43	1273		1355	1.63	1451	1433	1.83	1627	1505	2.03	1803
2400	1215	1.38	1223	1309	1.59	1413		1393	1.80	1600	1470	2.01	1784	1540	2.21	1967
2500	1258	1.54	1365	1349	1.76	1564		1431	1.98	1759	1506	2.20	1951	1576	2.41	2142
2600	1300	1.71	1518	1389	1.94	1726		1470	2.17	1929	1544	2.40	2130	1613	2.62	2329
2700	1343	1.90	1683	1430	2.14	1899		1509	2.38	2111	1581	2.61	2320	1649	2.85	2527
2800	1386	2.09	1860	1471	2.35	2085		1548	2.60	2305	1619	2.84	2522	—	—	—
2900	1429	2.31	2050	1512	2.57	2283		1588	2.83	2512	—	—	—	—	—	—
3000	1473	2.54	2252	1553	2.81	2494		—	—	—	—	—	—	—	—	—
580F072,073 (6 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
1800	1406	1.43	1268	1473	1.58	1407		1535	1.74	1548	1595	1.90	1690	1652	2.06	1833
1900	1438	1.57	1391	1504	1.73	1537		1567	1.90	1685	1626	2.06	1833	1682	2.23	1983
2000	1471	1.72	1523	1536	1.89	1677		1598	2.06	1831	1657	2.24	1986	1713	2.41	2142
2100	1504	1.87	1665	1569	2.06	1825		1630	2.24	1986	1688	2.42	2149	1744	2.60	2312
2200	1538	2.04	1816	1602	2.23	1984		1663	2.42	2152	1720	2.61	2321	1775	2.81	2491
2300	1572	2.23	1978	1635	2.42	2153		1695	2.62	2328	1753	2.82	2504	—	—	—
2400	1607	2.42	2150	1669	2.63	2332		1729	2.83	2515	—	—	—	—	—	—
2500	1642	2.63	2333	1704	2.84	2523		—	—	—	—	—	—	—	—	—
2600	1677	2.85	2527	—	—	—		—	—	—	—	—	—	—	—	—
2700	—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2800	—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2900	—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
3000	—	—	—	—	—	—		—	—	—	—	—	—	—	—	—

		LEGEND
Bhp	—	Brake Horsepower Input to Fan
Watts	—	Input Watts to Motor

*Motor drive range: 1300 to 1685 rpm. All other rpms require a field-supplied drive.

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 2.90.

3.See page 70 for general fan performance notes.

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