581A240 20 Tons Medium Heat Units | Bryant 581A/B instruction

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

581A240 (20 TONS) (Medium Heat Units)*
Airflow						Available External Static Pressure (in. wg)
Airflow		0.2			0.4			0.6			0.8			1.0
(Cfm)		0.2			0.4			0.6			0.8			1.0
	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp
5,000	607	1329	1.53	677	1565	1.80	740	1791	2.06	797	2013	2.31	850	2231	2.57
5,500	652	1648	1.90	719	1902	2.19	779	2145	2.47	833	2382	2.74	884	2616	3.01
6,000	699	2013	2.32	763	2285	2.63	819	2545	2.93	872	2798	3.22	921	3046	3.50
6,500	746	2428	2.79	807	2716	3.12	861	2993	3.44	911	3262	3.75	958	3525	4.05
7,000	794	2895	3.33	851	3198	3.68	904	3491	4.02	952	3776	4.34	998	4055	4.66
7,500	842	3415	3.93	897	3735	4.30	947	4043	4.65	994	4343	5.00	1038	4637	5.33
8,000	891	3992	4.59	943	4327	4.98	991	4650	5.35	1036	4966	5.71	1079	5274	6.07
8,500	940	4628	5.32	990	4977	5.72	1036	5316	6.11	1080	5646	6.49	1121	5970	6.87
9,000	990	5325	6.12	1037	5688	6.54	1082	6042	6.95	1124	6386	7.35	1163	6724	7.73
9,500	1039	6085	7.00	1085	6462	7.43	1128	6829	7.85	1168	7188	8.27	1207	7541	8.67
10,000	1089	6911	7.95	1133	7301	8.40	1174	7682	8.83	1213	8055	9.26	1251	8421	9.69

581A240 (20 TONS) (Medium Heat Units)* (cont)
Airflow						Available External Static Pressure (in. wg)
Airflow		1.2			1.4			1.6			1.8			2.0
(Cfm)		1.2			1.4			1.6			1.8			2.0
	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp	Rpm	Watts	Bhp
5,000	900	2448	2.82	949	2664	3.06	995	2879	3.31	1040	3095	3.56	1083	3310	3.81
5,500	933	2847	3.27	979	3077	3.54	1023	3305	3.80	1066	3534	4.06	1108	3762	4.33
6,000	967	3292	3.79	1011	3535	4.07	1054	3778	4.35	1095	4019	4.62	1135	4260	4.90
6,500	1003	3785	4.35	1046	4043	4.65	1087	4298	4.94	1127	4553	5.24	1165	4806	5.53
7,000	1041	4330	4.98	1082	4601	5.29	1122	4870	5.60	1160	5138	5.91	1197	5404	6.22
7,500	1079	4926	5.67	1119	5212	5.99	1158	5495	6.32	1195	5776	6.64	1231	6055	6.96
8,000	1119	5578	6.42	1158	5878	6.76	1195	6174	7.10	1231	6468	7.44	1267	6761	7.78
8,500	1160	6288	7.23	1198	6601	7.59	1234	6912	7.95	1269	7219	8.30	1303	7524	8.65
9,000	1202	7056	8.12	1238	7384	8.49	1273	7708	8.87	1308	8029	9.23	1341	8347	9.60
9,500	1244	7887	9.07	1279	8228	9.46	1314	8566	9.85	1347	8900	10.24	1379	9231	10.62
10,000	1287	8781	10.10	1321	9137	10.51	1355	9488	10.91	1387	9836	11.31	—	—	—

		LEGEND	Refer to page 230 for general Fan Performance Data notes.
Bhp	—	Brake Horsepower Input to Fan	NOTE: Maximum continuous bhp is:
Watts	—	Input Watts to Motor	Low Range: 5.75

High Range: 8.63

*Motor drive ranges:

Low Range: 949-1206

High Range: 941-1176

All other rpms require field-supplied drive.

581A155-300

226

581A/B specifications

The Bryant 581A/B is a sophisticated rooftop unit designed for commercial heating and cooling applications, striking a balance between performance, efficiency, and versatility. This unit is engineered to cater to various building sizes and configurations, making it an excellent choice for businesses seeking reliable climate control solutions.

One of the standout features of the Bryant 581A/B is its high efficiency. With SEER ratings reaching up to 14.5, this unit can significantly reduce energy costs while providing optimal performance throughout its operational lifespan. The design incorporates advanced compressor technology, allowing for variable speed operation that not only enhances comfort but also promotes energy savings by adjusting to the real-time demands of the environment.

The Bryant 581A/B also integrates cutting-edge refrigerant technology. Utilizing Puron refrigerant, it adheres to current environmental standards, minimizing its impact on ozone depletion while maximizing cooling performance. This commitment to sustainability is complemented by energy-efficient components, including high-efficiency coils and fan motors, which further optimize energy consumption.

In terms of construction, the Bryant 581A/B is built to withstand the rigors of outdoor installation. The unit features a rugged cabinet design with durable, corrosion-resistant materials, ensuring long-term reliability even in challenging weather conditions. Additionally, the easily accessible components simplify maintenance, reducing downtime for businesses.

The functionality of the Bryant 581A/B extends beyond mere cooling and heating. It is equipped with advanced control systems that can be interfaced with building management systems, allowing for seamless integration and enhanced control over indoor climate. This technology provides operators with the ability to monitor and adjust settings remotely, ensuring a comfortable indoor environment while optimizing energy use.

Noise reduction is another important characteristic of the Bryant 581A/B. The unit is designed with sound-dampening features, making it suitable for applications where low noise levels are a priority, such as retail spaces or office buildings.

Overall, the Bryant 581A/B is a robust solution for businesses seeking efficient, reliable, and flexible climate control. Its combination of advanced technology, durable construction, and user-friendly features make it a leading choice in the commercial HVAC market.

Bryant 581A/B manual 581A240 20 Tons Medium Heat Units

Models: 581A/B

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

581A240 (20 TONS) (Medium Heat Units)*

Rpm

5,500

6,500

7,500

8,500

9,500

581A240 (20 TONS) (Medium Heat Units)* (cont)

Rpm