Bryant manual 581B090 71/2 Tons Standard Motor, 581B090 71/2 Tons HIGH-STATIC Motor Airflow

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

581B090 (71/2 TONS) — STANDARD MOTOR

AIRFLOW										EXTERNAL STATIC PRESSURE (in. wg)
		0.2			0.4			0.6				0.8			1.0			1.2			1.4			1.6
(Cfm)
	Rpm		Bhp	Rpm		Bhp	Rpm		Bhp		Rpm		Bhp	Rpm		Bhp	Rpm		Bhp	Rpm		Bhp	Rpm		Bhp
2200	506		0.52	586		0.72	656		0.95		718		1.18	776		1.43	838		1.78	898		2.21	935		2.58
2250	514		0.55	593		0.76	662		0.99		724		1.22	781		1.78	841		1.81	902		2.25	939		2.60
2300	521		0.57	600		0.79	668		1.02		730		1.26	786		1.50	843		1.83	905		2.28	943		2.62
2400	536		0.63	613		0.85	680		1.09		741		1.34	796		1.59	849		1.88	910		2.31	952		2.74
2500	551		0.69	626		0.93	693		1.17		753		1.43	808		1.69	859		1.96	912		2.31	963		2.81
2550	559		0.72	634		0.97	700		1.21		759		1.48	814		1.74	864		2.01	915		2.34	968		2.81
2600	567		0.75	641		1.00	706		1.25		764		1.52	819		1.79	869		2.06	918		2.37	973		2.81
2700	582		0.83	655		1.08	719		1.34		776		1.61	831		1.89	880		2.17	927		2.47	976		2.84
2800	598		0.90	670		1.17	732		1.43		789		1.71	842		2.00	892		2.29	938		2.58	983		2.92
2900	614		0.98	684		1.25	745		1.53		802		1.81	854		2.11	903		2.42	949		2.71	993		3.03
3000	630		1.07	699		1.35	759		1.63		815		1.92	866		2.23	915		2.54	961		2.85	1003		3.17
3100	646		1.16	714		1.45	773		1.74		828		2.04	878		2.35	926		2.67	972		3.00	1015		3.32
3200	662		1.26	729		1.55	787		1.86		841		2.16	891		2.48	938		2.81	983		3.14	1026		3.47
3300	679		1.36	744		1.66	801		1.98		854		2.29	904		2.61	950		2.95	995		3.30	—		—
3400	695		1.47	759		1.78	816		2.10		867		2.42	917		2.75	963		3.10	1007		3.45	—		—
3500	712		1.59	774		1.90	830		2.23		881		2.56	930		2.90	976		3.25	—		—	—		—
3600	729		1.71	790		2.03	845		2.37		895		2.71				988		3.41	—		—	—		—
														943		3.05
3700	745		1.84	805		2.17	860		2.52		909		2.87	956		3.22	—		—	—		—	—		—
3750	754		1.91	813		2.24	868		2.59		917		2.95	963		3.30	—		—	—		—	—		—

581B090 (71/2 TONS) — HIGH-STATIC MOTOR

AIRFLOW						EXTERNAL STATIC PRESSURE (in. wg)
		0.2			0.4			0.6			0.8			1.0
(Cfm)
	Rpm			Bhp	Rpm	Bhp	Rpm		Bhp	Rpm		Bhp	Rpm		Bhp
2200	506		0.52		586	0.72	656		0.95	718		1.18	776		1.43
2250	514		0.55		593	0.76	662		0.99	724		1.22	781		1.48
2300	521		0.57		600	0.79	668		1.02	730		1.26	786		1.50
2400	536		0.63		613	0.85	680		1.09	741		1.34	796		1.59
2500	551		0.69		626	0.93	693		1.17	753		1.43	808		1.69
2550	559		0.72		634	0.97	700		1.21	759		1.48	814		1.74
2600	567		0.75		641	1.00	706		1.25	764		1.52	819		1.79
2700	582		0.83		655	1.08	719		1.34	776		1.61	831		1.89
2800	598		0.90		670	1.17	732		1.43	789		1.71	842		2.00
2900	614		0.98		684	1.25	745		1.53	802		1.81	854		2.11
3000	630		1.07		699	1.35	759		1.63	815		1.92	866		2.23
3100	646		1.16		714	1.45	773		1.74	828		2.04	878		2.35
3200	662		1.26		729	1.55	787		1.86	841		2.16	891		2.48
3300	679		1.36		744	1.66	801		1.98	854		2.29	904		2.61
3400	695		1.47		759	1.78	816		2.10	867		2.42	917		2.75
3500	712		1.59		774	1.90	830		2.23	881		2.56	930		2.90
3600	729		1.71		790	2.03	845		2.37	895		2.71	943		3.05
3700	745		1.84		805	2.17	860		2.52	909		2.87	956		3.22
3750	754		1.91		813	2.24	868		2.59	917		2.95	963		3.30
581B090 (71/2 TONS) — HIGH-STATIC MOTOR (cont)
AIRFLOW						EXTERNAL STATIC PRESSURE (in. wg)
		1.2			1.4			1.6			1.8			2.0
(Cfm)
	Rpm			Bhp	Rpm	Bhp	Rpm		Bhp	Rpm		Bhp	Rpm		Bhp
2200	838			1.78	898	2.21	935		2.58	974		2.92	1011		3.26
2250	841			1.81	902	2.25	939		2.60	979		2.94	1015		3.29
2300	843			1.83	905	2.28	943		2.62	983		2.96	1020		3.31
2400	849			1.88	910	2.31	952		2.74	992		3.10	1029		3.46
2500	859			1.96	912	2.31	963		2.81	1004		3.18	1041		3.55
2550	864			2.01	915	2.34	968		2.81	1009		3.18	1047		3.55
2600	869			2.06	918	2.37	973		2.81	1014		3.18	1052		3.55
2700	880			2.17	927	2.47	976		2.84	1017		3.21	1055		3.59
2800	892			2.29	938	2.58	983		2.92	1024		3.30	1063		3.69
2900	903			2.42	949	2.71	993		3.03	1035		3.43	1074		3.83
3000	915			2.54	961	2.85	1003		3.17	1045		3.59	1084		4.01
3100	926			2.67	972	3.00	1015		3.32	1058		3.76
													1097		4.20
3200	938			2.81	983	3.14	1026		3.47	1069		3.93	1109		4.39
3300	950			2.95	995	3.30	1043		3.80	1086		4.30	1127		4.80
3400	963			3.10	1007	3.45	1055		3.97	1100		4.49	1141		5.02
3500	976			3.25	1030	3.82	1079		4.40	1125		4.97	1167		5.56
3600	988			3.41	1043	4.01	1093		4.61	1139		5.22	1181		5.83
3700	1019			3.90			1127		5.27	1174		5.97	1218		6.67
					1075	4.58
3750	1026			4.00	1083	4.70	1135		5.41	1183		6.12	1227		6.83

LEGEND

Bhp — Brake Horsepower Input to Fan

FIOP — Factory-Installed Option

NOTES:

1.Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3.Motor drive range is 840 to 1085 rpm for standard motors; 860 to 1080 rpm for high-static motors. All other rpms require a field-supplied drive.

4.Values include losses for filters, unit casing, and wet coils. See page 40 for accessory/FIOP static pressure information.

5.Maximum continuous bhp is 2.90 for standard motors, 4.20 for high-static motors. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data tables on pages 41 and 42 for additional information.

6.Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative to verify.

7.Interpolation is permissible. Do not extrapolate.

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