580F036-150 and 581B036-150

GUIDE SPECIFICATIONS — 580F036-151 AND 581B036-150 (cont)

3.Testing:

a.Evaporator and condenser coils shall be qualified to UL 1995 burst test at 2,200 psi.

b.Evaporator and condenser coils shall be leak tested to 150 psig and pressure tested to 400 psig.

4.Optional Coils:

a.Optional pre-coated aluminum-fin coils shall have a durable epoxy-phenolic coating to provide pro- tection in mildly corrosive coastal environments. Coating shall be applied to the aluminum fin stock prior to the fin stamping process to create an inert barrier between the aluminum fin and copper tube. Epoxy-phenolic barrier shall minimize gal- vanic action between dissimilar metals.

b.Copper-fin coils shall be constructed of copper fins mechanically bonded to copper tubes and copper tube sheets. Galvanized steel tube sheets shall not be acceptable. A polymer strip shall pre- vent coil assembly from contacting the sheet metal coil pan to minimize potential for galvanic corrosion between coil and pan. All copper con- struction shall provide protection in moderate coastal environments.

c.E-Coated aluminum-fin coils shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins. Coating process shall ensure complete coil encapsulation. Color shall be high gloss black with gloss — 60 deg of 65 to 90% per ASTM D523-89. Uniform dry film thickness from 0.8 to

d.E-Coated copper-fin coils shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins. Coating process shall ensure complete coil encapsulation. Color shall be high gloss black with gloss — 60 deg of 65 to 90% per ASTM D523-89. Uniform dry film thickness from 0.8 to

1.2mil on all surface areas including fin edges. Superior hardness characteristics of 2H per ASTM D3363-92A and cross-hatch adhesion of 4B-5B per ASTM D3359-93. Impact resistance shall be up to 160 in.-lb (ASTM D2794-93). Humidity and water immersion resistance shall be up to minimum 1000 and 250 hours respectively (ASTM D2247-92 and ASTM D870-92). Corro- sion durability shall be confirmed through testing to be no less than 1000 hours salt spray per ASTM B117-90. Coil construction shall be copper fins mechanically bonded to copper tubes with copper tube sheets. Galvanized steel tube sheets shall not be acceptable. A polymer strip shall pre- vent coil assembly from contacting sheet metal coil pan to maintain coating integrity and minimize corrosion potential between coil and pan.

F.Heating Section:

1.Induced-draft combustion type with energy saving direct-spark ignition system and redundant main gas valve.

2.Heat Exchanger:

a.The standard heat exchanger shall be of the tubular-section type constructed of a minimum of 20-gage steel coated with a nominal 1.2 mil aluminum-silicone alloy for corrosion resistance.

b.The optional stainless steel heat exchanger shall be of the tubular-section type, constructed of a minimum of 20-gage type 409 stainless steel.

3.Burners shall be of the in-shot type constructed of aluminum-coated steel.

4.All gas piping shall enter the unit cabinet at a single location on side of unit (horizontal plane).

5.The integrated gas controller (IGC) board shall include gas heat operation fault notification using an LED (light-emitting diode).

6.Unit shall be equipped with anti-cycle protection with one short cycle on unit flame rollout switch or 4 con- tinuous short cycles on the high-temperature limit switch. Fault indication shall be made using an LED.

7.The IGC board shall contain algorithms that modify evaporator-fan operation to prevent future cycling on high-temperature limit switch.

8.The LED shall be visible without removal of control box access panel.

G.Refrigerant Components:

Refrigerant circuit components shall include:

1.Fixed orifice metering system.

2.Refrigerant filter drier.

3.Service gage connections on suction, discharge, and liquid lines.

H.Filter Section:

1.Standard filter section shall consist of factory- installed, low velocity, throwaway 2-in. thick fiberglass filters of commercially available sizes.

2.Filter face velocity shall not exceed 320 fpm at nomi- nal airflows.

3.Filter section should use only one size filter.

4.Filters shall be accessible through an access panel with “no-tool” removal.

I.Controls and Safeties:

1.Unit Controls:

Unit shall be complete with self-contained low-volt- age control circuit protected by a fuse on the 24-v transformer side (090-150 units have a resettable circuit breaker).

2.Safeties:

a.Unit shall incorporate a solid-state compressor protector which provides anti-cycle reset capabil- ity at the space thermostat, should any of the fol- lowing standard safety devices trip and shut off compressor.

1)Compressor overtemperature, overcurrent.

2)Loss-of-charge/low-pressure switch.

3)Freeze-protection thermostat, evaporator coil.

4)High-pressure switch.

5)Automatic reset motor thermal overload protector.

The lockout protection shall be easily discon- nected at the control board, if necessary.

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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 580F036-150 and 581B036-150

Models: 581A/B

GUIDE SPECIFICATIONS — 580F036-151 AND 581B036-150 (cont)

580F036-150 AND 581B036-150

581A/B specifications