Bryant 581A/B manual FAN RPM AT Motor Pulley SETTINGS* 581A210-300, Drive Motor Pulley Turns Open

PERFORMANCE DATA (cont)

OUTDOOR SOUND POWER (TOTAL UNIT)

UNIT	ARI	A-WEIGHTED				OCTAVE BANDS
	RATING
581A		(db)	63	125	250		500	1000	2000	4000	8000
	(decibels)
155,180	88	87.6	90.8	88.7	86.4		84.3	83.5	78.4	75.6	66.8
210, 240	82	81.7	90.2	84.8	80.7		79.0	77.6	71.4	66.7	60.7
300	85	84.9	90.0	86.3	83.6		82.9	80.3	74.9	71.4	66.5

LEGEND

ARI — Air Conditioning and Refrigeration Institute

NOTE: Indoor sound power is available in Bryant’s Electronic Catalog Program (ECAT) for specific operating parameters.

FAN RPM AT MOTOR PULLEY SETTINGS* — 581A210-300

581A	DRIVE					MOTOR PULLEY TURNS OPEN
		0	1/2	1	11/2	2	21/2	3	31/2	4	41/2	5	51/2	6
	Low Range Vertical	647	667	687	707	727	747	767	786	806	826	846	866	886
210
	High Range Vertical	897	917	937	958	978	998	1018	1038	1058	1079	1099	1119	1139
(208/230 and
	Low Range Horizontal	896	924	951	979	1006	1034	1062	1089	1117	1144	1172	1199	1227
460 volt)
	High Range Horizontal	1113	1138	1163	1188	1213	1238	1264	1289	1314	1339	1364	1389	1414
	Low Range Vertical	810	832	854	876	897	919	941	963	985	1007	1028	1050	1072
210	High Range Vertical	873	893	912	932	951	971	991	1010	1030	1049	1069	1088	1108
(575 volt)	Low Range Horizontal	863	886	909	933	956	979	1002	1025	1048	1072	1095	1118	1141
	High Range Horizontal	1042	1062	1083	1103	1123	1143	1164	1184	1204	1224	1245	1265	1285
	Low Range Vertical	949	970	992	1013	1035	1056	1078	1099	1120	1142	1163	1185	1206
240
	High Range Vertical	941	961	980	1000	1019	1039	1059	1078	1098	1117	1137	1156	1176
(208/230 and
	Low Range Horizontal	896	924	951	979	1006	1034	1062	1089	1117	1144	1172	1199	1227
460 volt)
	High Range Horizontal	1113	1138	1163	1188	1213	1238	1264	1289	1314	1339	1364	1389	1414
	Low Range Vertical	949	970	992	1013	1035	1056	1078	1099	1120	1142	1163	1185	1206
240	High Range Vertical	941	961	980	1000	1019	1039	1059	1078	1098	1117	1137	1156	1176
(575 volt)	Low Range Horizontal	873	893	912	932	951	971	991	1010	1030	1049	1069	1088	1108
	High Range Horizontal	1113	1138	1163	1188	1213	1238	1264	1289	1314	1339	1364	1389	1414
	Low Range Vertical	805	822	839	856	872	889	906	923	940	957	973	990	1007
300	High Range Vertical	941	961	980	1000	1019	1039	1059	1078	1098	1117	1137	1156	1176
(all voltages)	Low Range Horizontal	805	822	839	856	872	889	906	923	940	957	973	990	1007
	High Range Horizontal	941	961	980	1000	1019	1039	1059	1078	1098	1117	1137	1156	1176

*Approximate fan rpm shown.

581A155-300

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