Bryant 581C024--060, 581B036--072 installation instructions Rpm Bhp Watts

581B,C

Table 18—Fan Performance 581B 048, 581C 048 — Vertical Discharge Units; Standard 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	—	—	—	—	—	—	—	—	—

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	—	—	—
1400	1147	0.98	972	1208	1.09	1086	—	—		—	—	—	—	—	—	—
1500	1175	1.09	1086	—	—	—	—	—		—	—	—	—	—	—	—
1600	—	—	—	—	—	—	—	—		—	—	—	—	—	—	—
1700	—	—	—	—	—	—	—	—		—	—	—	—	—	—	—
1800	—	—	—	—	—	—	—	—		—	—	—	—	—	—	—
1900	—	—	—	—	—	—	—	—		—	—	—	—	—	—	—
2000	—	—	—	—	—	—	—	—		—	—	—	—	—	—	—
NOTES:									LEGEND
1. Grey cells indicate field-supplied drive is required.								Bhp — Brake Horsepower
2. Maximum continuous bhp is 2.40.								Watts — Input Watts to Motor
3. See general fan performance notes.								*Motor drive range: 770 to 1185 rpm. All other rpms require field-supplied drive.

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