Bryant 581A/B FAN Performance Vertical Discharge Units, 580F048 4 Tons Alternate Motor Belt Drive

580F036-151

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

580F048 (4 TONS) — STANDARD MOTOR (DIRECT DRIVE)
	Airflow				Low Speed							High Speed
				208 V			230, 460, 575 V				208 V			230, 460, 575 V
	(Cfm)
			ESP	Bhp	Watts	ESP		Bhp	Watts	ESP	Bhp	Watts	ESP		Bhp	Watts
	1200		0.68	0.41	458	0.74		0.45	506	0.74	0.51	572	0.85		0.56	632
	1300		0.61	0.42	471	0.67		0.46	521	0.66	0.52	589	0.78		0.58	651
	1400		0.53	0.45	503	0.59		0.49	556	0.59	0.54	616	0.70		0.60	681
	1500		0.45	0.47	536	0.51		0.52	593	0.52	0.56	631	0.63		0.62	698
	1600		0.36	0.49	557	0.42		0.54	616	0.45	0.58	654	0.56		0.64	723
	1700		0.26	0.52	584	0.32		0.57	646	0.37	0.60	678	0.48		0.66	750
	1800		0.15	0.54	610	0.22		0.60	674	0.30	0.62	698	0.41		0.68	772
	1900		0.04	0.56	629	0.11		0.62	696	0.23	0.64	720	0.34		0.70	796
	2000		—	—	—	—		—	—	0.16	0.66	744	0.26		0.73	823
		LEGEND							See page 70 for general fan performance notes.
Bhp	—	Brake Horsepower Input to Fan
ESP	—	External Static Pressure (in. wg)

580F048 (4 TONS) — ALTERNATE MOTOR (BELT DRIVE)*
Airflow								External Static Pressure (in. wg)
(Cfm)			0.2			0.4				0.6			0.8			1.0
		Rpm	Bhp	Watts	Rpm	Bhp	Watts		Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts
1200		666	0.26	257	778	0.37	367		871	0.47	471	952	0.57	572	1025	0.67	670
1300		701	0.31	306	810	0.43	426		901	0.54	540	981	0.65	651	1053	0.76	760
1400		737	0.36	361	842	0.49	491		931	0.62	616	1010	0.74	738	1081	0.86	856
1500		773	0.42	422	875	0.57	564		963	0.70	699	1040	0.84	831	1110	0.96	960
1600		810	0.49	491	909	0.65	643		994	0.79	790	1070	0.94	932	1140	1.08	1070
1700		847	0.57	567	943	0.73	730		1027	0.89	888	1101	1.05	1040	1170	1.20	1189
1800		885	0.66	652	978	0.83	826		1060	1.00	994	1133	1.16	1157	—	—	—
1900		923	0.75	745	1014	0.94	930		1093	1.11	1109	—	—	—	—	—	—
2000		962	0.85	847	1049	1.05	1043		—	—	—	—	—	—	—	—	—
580F048 (4 TONS) — ALTERNATE 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
1200		1093	0.77	767	1155	0.87	861		1213	0.96	955	1268	1.05	1047	1321	1.14	1137
1300		1119	0.87	866	1181	0.98	970		1239	1.08	1073	1294	1.18	1175	—	—	—
1400		1147	0.98	972	1208	1.09	1086		—	—	—	—	—	—	—	—	—
1500		1175	1.09	1086	—	—	—		—	—	—	—	—	—	—	—	—
1600		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
1700		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
1800		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
1900		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
2000		—	—	—	—	—	—		—	—	—	—	—	—	—	—	—
	LEGEND									NOTES:
Bhp —	Brake Horsepower Input to Fan									1. Boldface indicates field-supplied drive is required.
										2. Maximum continuous bhp is 1.20.
Watts —	Input Watts to Motor
										3. See page 70 for general fan performance notes.

*Motor drive range: 770 to 1175 rpm. All other rpms require a field-supplied drive.

580F048 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow							External Static Pressure (in. wg)
(Cfm)		0.2			0.4				0.6			0.8			1.0
	Rpm	Bhp	Watts	Rpm	Bhp	Watts		Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts
1200	666	0.26	257	778	0.37	367		871	0.47	471	952	0.57	572	1025	0.67	670
1300	701	0.31	306	810	0.43	426		901	0.54	540	981	0.65	651	1053	0.76	760
1400	737	0.36	361	842	0.49	491		931	0.62	616	1010	0.74	738	1081	0.86	856
1500	773	0.42	422	875	0.57	564		963	0.70	699	1040	0.84	831	1110	0.96	960
1600	810	0.49	491	909	0.65	643		994	0.79	790	1070	0.94	932	1140	1.08	1070
1700	847	0.57	567	943	0.73	730		1027	0.89	888	1101	1.05	1040	1170	1.20	1189
1800	885	0.66	652	978	0.83	826		1060	1.00	994	1133	1.16	1157	1200	1.32	1316
1900	923	0.75	745	1014	0.94	930		1093	1.11	1109	1165	1.29	1283	1231	1.46	1453
2000	962	0.85	847	1049	1.05	1043		1127	1.24	1233	1198	1.42	1417	1263	1.61	1598
580F048 (4 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)
Airflow							External Static Pressure (in. wg)
(Cfm)		1.2			1.4				1.6			1.8			2.0
	Rpm	Bhp	Watts	Rpm	Bhp	Watts		Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts
1200	1093	0.77	767	1155	0.87	861		1213	0.96	955	1268	1.05	1047	1321	1.14	1137
1300	1119	0.87	866	1181	0.98	970		1239	1.08	1073	1294	1.18	1175	1346	1.28	1275
1400	1147	0.98	972	1208	1.09	1086		1265	1.21	1199	1320	1.32	1310	1371	1.43	1419
1500	1175	1.09	1086	1235	1.22	1209		1292	1.34	1332	1346	1.46	1452	1397	1.58	1572
1600	1204	1.21	1207	1263	1.35	1340		1320	1.48	1472	1373	1.61	1603	1424	1.74	1732
1700	1233	1.34	1336	1292	1.49	1480		1348	1.63	1622	1401	1.77	1762	1451	1.91	1901
1800	1262	1.48	1473	1321	1.64	1627		1376	1.79	1779	1428	1.94	1930	1479	2.09	2078
1900	1293	1.63	1620	1350	1.79	1784		1405	1.96	1946	1457	2.12	2106	1506	2.28	2265
2000	1323	1.79	1776	1380	1.96	1950		1434	2.13	2123	1486	2.31	2293	—	—	—

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

*Motor drive range: 1075 to 1455 rpm. All other rpms require a field-supplied drive.

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 2.40.

3.See page 70 for general fan performance notes.

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