Bryant 581A operation manual

Table 20 — Fan Performance — 581A300 Low Heat Horizontal Discharge Units*

AIRFLOW								EXTERNAL STATIC PRESSURE (in. wg)
				0.2			0.4			0.6			0.8			1.0
(Cfm)
			Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts
6,500			786	2,658	3.06	819	2,835	3.26	857	3,052	3.51	899	3,304	3.80	943	3,586	4.12
7,000			842	3,208	3.69	871	3,386	3.89	905	3,599	4.14	943	3,847	4.42	983	4,123	4.74
7,500			898	3,827	4.40	925	4,006	4.61	955	4,217	4.85	989	4,460	5.13	1026	4,733	5.44
8,000			955	4,518	5.20	979	4,699	5.40	1007	4,908	5.65	1037	5,148	5.92	1070	5,416	6.23
8,500			1012	5,284	6.08	1034	5,466	6.29	1059	5,675	6.53	1087	5,912	6.80	1117	6,176	7.10
9,000			1069	6,127	7.05	1090	6,312	7.26	1113	6,521	7.50	1138	6,757	7.77	1165	7,017	8.07
9,500			1127	7,050	8.11	1146	7,238	8.32	1167	7,448	8.57	1190	7,682	8.84	1215	7,940	9.13
10,000			1184	8,057	9.27	1202	8,247	9.49	1221	8,460	9.73	1243	8,693	10.00	1266	8,948	10.29
10,500			1242	9,149	10.52	1258	9,344	10.75	1276	9,557	10.99	1296	9,791	11.26	1318	10,046	11.55
11,000			1299	10,331	11.88	1315	10,529	12.11	1332	10,745	12.36	1350	10,979	12.63	1370	11,232	12.92
11,500			1357	11,604	13.35	1372	11,806	13.58	—	—	—	—	—	—	—	—	—
12,000			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
12,500			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
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
6,500			988	3,900	4.49	1035	4,248	4.89	1082	4,632	5.33	1129	5,050	5.81	1177	5,499	6.32
7,000			1024	4,428	5.09	1066	4,760	5.48	1109	5,124	5.89	1153	5,521	6.35	1197	5,950	6.84
7,500			1063	5,031	5.79	1102	5,354	6.16	1141	5,703	6.56	1181	6,081	6.99	1221	6,487	7.46
8,000			1105	5,709	6.57	1140	6,025	6.93	1176	6,364	7.32	1213	6,729	7.74	1250	7,116	8.18
8,500			1149	6,465	7.44	1181	6,777	7.79	1215	7,109	8.18	1249	7,463	8.58	1283	7,838	9.02
9,000			1194	7,302	8.40	1225	7,608	8.75	1256	7,935	9.13	1287	8,282	9.53	1319	8,649	9.95
9,500			1242	8,222	9.46	1270	8,524	9.80	1298	8,847	10.17	1328	9,189	10.57	1358	9,548	10.98
10,000			1290	9,227	10.61	1316	9,525	10.96	1343	9,845	11.32	1370	10,181	11.71	1399	10,536	12.12
10,500			1340	10,321	11.87	1364	10,617	12.21	1389	10,932	12.57	—	—	—	—	—	—
11,000			1391	11,505	13.23	—	—	—	—	—	—	—	—	—	—	—	—
11,500			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
12,000			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
12,500			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
			LEGEND							Refer to page 23 for general Fan Performance Data notes.
Bhp	—	Brake Horsepower Input to Fan								NOTE: Maximum continuous bhp is:
Watts	—	Input Watts to Motor								Low Range: 8.63
*Motor drive ranges:										High Range: 11.50
Low Range: 941-1176
High Range: 1014-1297
All other rpms require field-supplied drive.
				Table 21 — Fan Performance — 581A300 Medium Heat Horizontal Discharge Units*
AIRFLOW								EXTERNAL STATIC PRESSURE (in. wg)
				0.2			0.4			0.6			0.8			1.0
(Cfm)
			Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts
6,500			799	2,730	3.14	833	2,914	3.35	872	3,135	3.61	914	3,392	3.90	958	3,687	4.24
7,000			856	3,294	3.79	887	3,481	4.00	921	3,699	4.25	958	3,950	4.54	999	4,235	4.87
7,500			913	3,929	4.52	941	4,118	4.74	972	4,335	4.99	1006	4,582	5.27	1042	4,860	5.59
8,000			971	4,637	5.33	996	4,829	5.55	1024	5,046	5.80	1055	5,290	6.08	1088	5,562	6.40
8,500			1029	5,421	6.24	1052	5,617	6.46	1078	5,835	6.71	1106	6,077	6.99	1136	6,345	7.30
9,000			1087	6,285	7.23	1108	6,484	7.46	1132	6,703	7.71	1158	6,946	7.99	1185	7,211	8.29
9,500			1145	7,231	8.32	1165	7,433	8.55	1187	7,655	8.80	1211	7,898	9.08	1236	8,161	9.39
10,000			1203	8,262	9.50	1222	8,468	9.74	1243	8,693	10.00	1265	8,936	10.28	1288	9,199	10.58
10,500			1261	9,381	10.79	1279	9,592	11.03	1299	9,820	11.29	1319	10,065	11.58	1341	10,327	11.88
11,000			1320	10,592	12.18	1337	10,807	12.43	1355	11,038	12.70	1374	11,284	12.98	1394	11,547	13.28
11,500			1378	11,896	13.68	—	—	—	—	—	—	—	—	—	—	—	—
12,000			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
12,500			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
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
6,500			1005	4,020	4.62	1052	4,390	5.05	1100	4,791	5.51	1148	5,221	6.00	1195	5673	6.52
7,000			1041	4,555	5.24	1084	4,908	5.64	1128	5,294	6.09	1172	5,710	6.57	1217	6153	7.08
7,500			1080	5,168	5.94	1119	5,508	6.33	1160	5,878	6.76	1201	6,279	7.22	1242	6708	7.71
8,000			1122	5,862	6.74	1158	6,190	7.12	1195	6,548	7.53	1233	6,934	7.97	1272	7347	8.45
8,500			1167	6,638	7.63	1200	6,959	8.00	1234	7,305	8.40	1269	7,677	8.83	1304	8076	9.29
9,000			1214	7,499	8.63	1244	7,813	8.99	1275	8,149	9.37	1308	8,511	9.79	1340	8896	10.23
9,500			1262	8,447	9.72	1290	8,754	10.07	1319	9,084	10.45	1349	9,437	10.85	1379	9812	11.28
10,000			1312	9,482	10.91	1338	9,785	11.25	1365	10,110	11.63	1392	10,454	12.02	—	—	—
10,500			1363	10,608	12.20	1387	10,909	12.55	—	—	—	—	—	—	—	—	—
11,000			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
11,500			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
12,000			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
12,500			—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
			LEGEND							Refer to page 23 for general Fan Performance Data notes.
Bhp	—	Brake Horsepower Input to Fan								NOTE: Maximum continuous bhp is:
Watts	—	Input Watts to Motor								Low Range: 8.63
*Motor drive ranges:										High Range: 11.50

Low Range: 941-1176

High Range: 1014-1297

All other rpms require field-supplied drive.

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