Ashrae 90.1 Compliant Units | Bryant 581A/B manual

PHYSICAL DATA — 580F091,103,121,151 UNITS (cont)

ASHRAE 90.1 COMPLIANT UNITS (cont)

UNIT SIZE 580F						091		103		121	151
FURNACE SECTION
Rollout Switch Cutout
Temp (F)**						195		195		195	195
Burner Orifice Diameter
(in. ...drill size)
	Natural Gas			Std	Low	.120...31		.120...31		.120...31	.120...31
					Med	.120...31		.120...31		.120...31	.129...30
					High	.120...31		.120...31		.129...30	—
	Liquid Propane			Alt	Low	.096...41		.096...41		.096...41	.096...41
					Med	.096...41		.096...41		.096...41	.102...38
Thermostat Heat Anticipator					High	.096...41		.096...41		.102...38	—
Thermostat Heat Anticipator
Setting (amps)
	208/230 v and 575		Stage 1			.14		.14		.14	.14
			Stage 2			.20		.20		.20	.20
	460 v		Stage 1			.14		.14		.14	.14
			Stage 2			.20		.20		.20	.20
Gas Input (Btuh) Stage 1					Low	125,000		125,000		120,000	180,000
					Med	120,000		120,000		180,000	200,000
					High	180,000		180,000		200,000	—
		Stage 2			Low	—		—		180,000	224,000
					Med	180,000		180,000		224,000	250,000
Efficiency (Steady					High	224,000		224,000		250,000	—
Efficiency (Steady
	State) (%)					80		80		80	80
Temperature Rise Range					Low	20-50		20-50		35-65	35-65
					Med	35-65		35-65		35-65	40-70
Manifold Pressure (in. wg)					High	45-75		45-75		40-70	—
Manifold Pressure (in. wg)
	Natural Gas			Std		3.5		3.5		3.5	3.5
	Liquid Propane			Alt		3.5		3.5		3.5	3.5
Gas Valve Quantity						1		1		1	1
Gas Valve Pressure Range
	Psig					0.180-0.487		0.180-0.487		0.180-0.487	0.180-0.487
	in. wg					5.0-13.5		5.0-13.5		5.0-13.5	5.0-13.5
Field Gas Connection
Size (in.)					Low	1/		1/	2	3/	3/
					Med	2		3/	2	4	4
					Med	3/		3/	4	3/	3/
					High	4		3/	4	4	4
					High	3/		3/	4	3/	—
						4			4	4
HIGH-PRESSURE SWITCH (psig)
Standard Compressor							450 ± 50				500 ± 50
Internal Relief (Differential)
Cutout							428				428
Reset (Auto.)							320				320
LOW-PRESSURE SWITCH (psig)
Cutout									7 ± 3
Reset (Auto.)									22 ± 7
FREEZE PROTECTION
THERMOSTAT (F)
Opens									30 ± 5
Closes									45 ± 5
OUTDOOR-AIR INLET SCREENS									Cleanable
Quantity...Size (in.)								Varies by Option Selected
RETURN-AIR FILTERS									Throwaway
Quantity...Size (in.)						4...16 x 20 x 2		4...20 x 20 x 2		4...20 x 20 x 2	4...20 x 20 x 2
	LEGEND						*Evaporator coil fin material/condenser coil fin material. Contact your local repre-
Al	—	Aluminum					sentative for details about coated fins.
Al	—	Aluminum					†Weight of 14-in. roof curb.
Bhp	—	Brake Horsepower					†Weight of 14-in. roof curb.
Bhp	—	Brake Horsepower					**Rollout switch lockout is manually reset by interrupting power to unit or resetting
Cu	—	Copper
Cu	—	Copper					thermostat.
							thermostat.

580F036-151

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 Ashrae 90.1 Compliant Units

Models: 581A/B

PHYSICAL DATA — 580F091,103,121,151 UNITS (cont)

ASHRAE 90.1 COMPLIANT UNITS (cont)

UNIT SIZE 580F

FURNACE SECTION

RETURN-AIR FILTERS

580F036-151

581A/B specifications