Bryant 581B036--072, 581C024--060 installation instructions Rpm Bhp, 1100, 1200, 1300, 1400

Table 16—Fan Performance 581B 036, 581C 036 — 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
900	567	0.15	145	688	0.22	222	786	0.30	296	871	0.37	368	947	0.44	437
1000	599	0.18	177	717	0.27	265	814	0.35	349	897	0.43	430	972	0.51	509
1100	632	0.22	215	747	0.31	313	842	0.41	407	925	0.50	498	999	0.59	587
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

	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
900		1016		0.51	505	1080		0.57	572	1139		0.64	637	1195	0.71	702	1249		0.77	765
1000		1041		0.59	587	1104		0.67	662	1163		0.74	737	1219	0.81	811	1272		0.89	883
1100		1066		0.68	674	1129		0.76	759	1188		0.85	843	1243	0.93	925	1296		1.01	1007
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		—	—	—		—	—	—	—	—	—		—	—	—
	NOTES:												LEGEND
	1. Grey cells indicate field-supplied drive is required.											Bhp — Brake Horsepower
	2. Maximum continuous bhp is 1.20.											Watts — Input Watts to Motor
	3. See general fan performance notes.											*Motor drive range: 680 to 1044 rpm. All other rpms require field-supplied
												drive.
				Table 17—Fan Performance 581B 036, 581C 036 — Vertical Discharge Units; 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
	900		567	0.15	145		688	0.22	222		786	0.30	296	871	0.37	368		947	0.44	437
	1000		599	0.18	177		717	0.27	265		814	0.35	349	897	0.43	430		972	0.51	509
	1100		632	0.22	215		747	0.31	313		842	0.41	407	925	0.50	498		999	0.59	587
	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
	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
	900		1016	0.51	505		1080	0.57	572		1139	0.64	637	1195	0.71	702		1249	0.77	765
	1000		1041	0.59	587		1104	0.67	662		1163	0.74	737	1219	0.81	811		1272	0.89	883
	1100		1066	0.68	674		1129	0.76	759		1188	0.85	843	1243	0.93	925		1296	1.01	1007
	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
	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: 1075 to 1455 rpm. All other rpms require field-supplied

drive.

581B,C

29