Bryant 581A/B manual 581B036 3 Tons HIGH-STATIC Motor Belt Drive

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS

581B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE)*
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
900	553	0.14	134	681	0.22	221	782	0.32	316	870	0.42	417	948	0.53	526
1000	582	0.16	163	707	0.26	257	807	0.36	358	894	0.47	466	971	0.58	580
1100	612	0.20	196	734	0.30	297	833	0.41	405	919	0.52	519	995	0.64	639
1200	643	0.23	234	762	0.34	343	859	0.46	458	944	0.58	579	1020	0.71	705
1300	675	0.28	277	790	0.40	394	886	0.52	517	969	0.65	644	1044	0.78	777
1400	707	0.33	326	819	0.45	452	913	0.58	581	996	0.72	716	1070	0.86	855
1500	740	0.38	382	849	0.52	515	941	0.66	653	1023	0.80	795	1096	0.95	941
581B036 (3 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)																581B036
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
900	1019	0.64	640	1084	0.76	760	1146	0.89	885	1203	1.02	1016	1258	1.16	1152	-150
1000	1042	0.70	700	1107	0.83	825	1168	0.96	956	1225	1.10	1091	—	—	—
1100	1065	0.77	765	1130	0.90	896	1190	1.04	1032	1247	1.18	1173	—	—	—
1200	1089	0.84	837	1153	0.98	974	1213	1.12	1115	—	—	—	—	—	—
1300	1113	0.92	915	1177	1.06	1058	—	—	—	—	—	—	—	—	—
1400	1138	1.01	1000	1201	1.15	1149	—	—	—	—	—	—	—	—	—
1500	1163	1.10	1092	—	—	—	—	—	—	—	—	—	—	—	—

LEGEND

Bhp — Brake Horsepower

Watts — Input Watts to Motor

*Motor drive range: 680 to 1044 rpm. All other rpms require field- supplied drive.

See page 103 for general fan performance notes.

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 1.20.

581B036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

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
900	553	0.14	134	681	0.22	221	782	0.32	316	870	0.42	417	948	0.53	526
1000	582	0.16	163	707	0.26	257	807	0.36	358	894	0.47	466	971	0.58	580
1100	612	0.20	196	734	0.30	297	833	0.41	405	919	0.52	519	995	0.64	639
1200	643	0.23	234	762	0.34	343	859	0.46	458	944	0.58	579	1020	0.71	705
1300	675	0.28	277	790	0.40	394	886	0.52	517	969	0.65	644	1044	0.78	777
1400	707	0.33	326	819	0.45	452	913	0.58	581	996	0.72	716	1070	0.86	855
1500	740	0.38	382	849	0.52	515	941	0.66	653	1023	0.80	795	1096	0.95	941
581B036 (3 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)
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
900	1019	0.64	640	1084	0.76	760	1146	0.89	885	1203	1.02	1016	1258	1.16	1152
1000	1042	0.70	700	1107	0.83	825	1168	0.96	956	1225	1.10	1091	1279	1.24	1232
1100	1065	0.77	765	1130	0.90	896	1190	1.04	1032	1247	1.18	1173	1301	1.33	1319
1200	1089	0.84	837	1153	0.98	974	1213	1.12	1115	1270	1.27	1262	1324	1.42	1413
1300	1113	0.92	915	1177	1.06	1058	1237	1.21	1205	1293	1.36	1358	1347	1.52	1514
1400	1138	1.01	1000	1201	1.15	1149	1261	1.31	1303	1317	1.47	1461	1370	1.63	1623
1500	1163	1.10	1092	1226	1.25	1247	1285	1.41	1407	1341	1.58	1571	1394	1.75	1740

LEGEND

Bhp — Brake Horsepower

Watts — Input Watts to Motor

*Motor drive range: 1075 to 1455 rpm. All other rpms require field- supplied drive.

See page 103 for general fan performance notes.

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 2.40.

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