Bryant 581A operation manual

Table 10 — Fan Performance — 581A240360 (High Heat Units)

					AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
CFM		0.2			0.4			0.6			0.8			1.0
	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp
6,000	868	2752	3.26	934	2987	3.54	997	3227	3.83	1058	3470	4.12	1115	3716	4.41
6,500	929	3201	3.80	991	3436	4.08	1051	3675	4.36	1108	3917	4.65	1162	4163	4.94
7,000	991	3687	4.37	1049	3923	4.65	1105	4161	4.94	1159	4403	5.22	1211	4647	5.51
7,500	1054	4211	5.00	1109	4447	5.28	1161	4686	5.56	1213	4926	5.84	1262	5170	6.13
8,000	1117	4773	5.66	1168	5009	5.94	1218	5247	6.22	1267	5488	6.51	1314	5731	6.80
8,500	1180	5373	6.37	1229	5609	6.65	1277	5847	6.94	1323	6088	7.22	1368	6331	7.51
9,000	1244	6011	7.13	1290	6247	7.41	1335	6485	7.69	1380	6726	7.98	1423	6968	8.27
9,500	1308	6687	7.93	1352	6924	8.21	1395	7162	8.50	1437	7402	8.78	1479	7644	9.07
10,000	1372	7401	8.78	1414	7638	9.06	1455	7876	9.34	1496	8117	9.63	1535	8358	9.92

					AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
CFM		1.2			1.4					1.6			1.8			2.0
	Rpm	Watts	Bhp	Rpm	Watts		Bhp	Rpm		Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts		Bhp
6,000	1171	3965	4.70	1224	4216		5.00	1276		4469	5.30	1326	4726	5.61	1374	4983		5.91
6,500	1215	4410	5.23	1266	4659		5.53	1316		4911	5.83	1364	5165	6.13	1411	5421		6.43
7,000	1262	4894	5.81	1311	5142		6.10	1358		5392	6.40	1404	5645	6.70	1449	5899		7.00
7,500	1310	5415	6.42	1357	5663		6.72	1403		5912	7.01	1447	6164	7.31	1490	6416		7.61
8,000	1360	5976	7.09	1405	6222		7.38	1449		6471	7.68	1492	6721	7.97	1533	6973		8.27
8,500	1412	6575	7.80	1455	6821		8.09	1497		7068	8.39	1538	7318	8.68	—	—		—
9,000	1465	7212	8.56	1506	7457		8.85	1547		7705	9.14	—	—	—	—	—	—
9,500	1519	7888	9.36	—	—		—	—	—	—	—	—	—	—	—	—
10,000	—	—	—	—	—	—	—	—		—	—	—	—	—	—	—

					AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
CFM		2.2			2.4					2.6			2.8				3.0
	Rpm	Watts	Bhp	Rpm	Watts		Bhp	Rpm		Watts	Bhp	Rpm	Watts		Bhp	Rpm	Watts		Bhp
6,000	1422	5243	6.22	1468	5505		6.53	1513		5768	6.84	—	—		—	—	—	—
6,500	1456	5679	6.74	1501	5938		7.04	1544		6199	7.35	—	—		—	—	—	—
7,000	1493	6155	7.30	1536	6412		7.61	—		—	—	—	—	—	—	—	—
7,500	1533	6670	7.91	—	—		—	—	—	—	—	—	—		—	—	—
8,000	—	—	—	—	—	—	—	—		—	—	—	—		—	—	—
8,500	—	—	—	—	—	—	—	—		—	—	—	—		—	—	—
9,000	—	—	—	—	—	—	—	—		—	—	—	—		—	—	—
9,500	—	—	—	—	—	—	—	—		—	—	—	—		—	—	—
10,000	—	—	—	—	—	—	—	—		—	—	—	—		—	—	—

		LEGEND
Bhp	—	Brake Horsepower
FIOP	—	Factory-Installed Option
Watts —		Input Watts to Motor

*Standard low-medium static drive range is 1002 to 1151 rpm. Alternate high-static drive range is 1193 to 1369. Other rpms require a field- supplied drive.

NOTES:

1.Maximum continuous bhp for the standard motor is 9.47 (for 208-v units) and 10.33 (for 230 and 460-v units). The maximum continuous watts is 7915 (for 208 and 575-v units) and 8640 (for 230 and 460-v units). Do not adjust motor rpm such that motor maximum bhp and/ or watts is exceeded at the maximum operating cfm.

2.Static pressure losses (i.e., economizer) must be added to external static pressure before entering Fan Performance table.

3.Interpolation is permissible. Do not extrapolate.4

4.Fan performance is based on wet coils, clean filters, and casing losses. See Table 13 for accessory/FIOP static pressure information.

5.Extensive motor and drive testing on these units ensures that the full bhp and watts range of the motor can be utilized with confidence. Using your fan motors up to the watts or bhp rating shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

6.Use of a field-supplied motor may affect wiring size. Contact your Bryant representative for details.

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