548J

23 40 13 Panel Air Filters

23 40 13.13 Decentralized, Rooftop Units:

23 40 13.13.A. Standard filter section

1.Shall consist of factory-installed, low velocity, throwaway 2-in. thick fiberglass filters of commercially available sizes.

2.Unit shall use only one filter size. Multiple sizes are not acceptable.

3.Filters shall be accessible through an access panel with “no-tool” removal as described in the unit cabinet section of this specification (23 81 19.13.H).

23 81 19 Self-Contained Air Conditioners

23 81 19.13 Small-Capacity Self-Contained Air Conditioners (548J*04-09)

23 81 19.13.A. General

1.Outdoor, rooftop mounted, electrically controlled, heating and cooling unit utilizing a(n) hermetic scroll com- pressor(s) for cooling duty and heat pump for heating duty.

2.Factory assembled, single-piece heating and cooling rooftop unit. Contained within the unit enclosure shall be all factory wiring, piping, controls, and special features required prior to field start-up.

3.Unit shall use environmentally safe, Puron refrigerant.

4.Unit shall be installed in accordance with the manufacturer’s instructions.

5.Unit must be selected and installed in compliance with local, state, and federal codes.

23 81 19.13.B. Quality Assurance

1.Unit meets ASHRAE 90.1-2004 minimum efficiency requirements.

2.3-phase units are Energy Star qualified.

3.Unit shall be rated in accordance with AHRI Standards 210/240 and 340/360.

4.Unit shall be designed to conform to ASHRAE 15, 2001.

5.Unit shall be UL-tested and certified in accordance with ANSI Z21.47 Standards and UL-listed and certified under Canadian standards as a total package for safety requirements.

6.Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.

7.Unit casing shall be capable of withstanding 500-hour salt spray exposure per ASTM B117 (scribed specimen).

8.Unit casing shall be capable of withstanding Federal Test Method Standard No. 141 (Method 6061) 5000-hour salt spray.

9.Unit shall be designed in accordance with ISO 9001:2000, and shall be manufactured in a facility registered by ISO 9001:2000.

10.Roof curb shall be designed to conform to NRCA Standards.

11.Unit shall be subjected to a completely automated run test on the assembly line. The data for each unit will be stored at the factory, and must be available upon request.

12.Unit shall be designed in accordance with UL Standard 1995, including tested to withstand rain.

13.Unit shall be constructed to prevent intrusion of snow and tested to prevent snow intrusion into the control box up to 40 mph.

14.Unit shake tested to assurance level 1, ASTM D4169 to ensure shipping reliability.

23 81 19.13.C. Delivery, Storage, and Handling

1.Unit shall be stored and handled per manufacturer’s recommendations.

2.Lifted by crane requires either shipping top panel or spreader bars.

3.Unit shall only be stored or positioned in the upright position.

23 81 19.13.D. Project Conditions

1.As specified in the contract. 23 81 19.13.E. Project Conditions

1.As specified in the contract.

23 81 19.13.F. Operating Characteristics

1.Unit shall be capable of starting and running at 115_F (46_C) ambient outdoor temperature, meeting maximum load criteria of AHRI Standard 210/240 or 340/360 at ± 10% voltage.

2.Compressor with standard controls shall be capable of operation from 25_F (-4_C), ambient outdoor temperat- ures. Accessory winter start kit is necessary if mechanically cooling at ambient temperatures below 25_F (-4_C).

3.Unit shall be capable of simultaneous heating duty and defrost cycle operation when using accessory electric heaters.

4.Unit shall discharge supply air vertically or horizontally as shown on contract drawings.

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Bryant 548J manual 23 40 13 Panel Air Filters, 23 81 19 Self-Contained Air Conditioners

548J specifications

The Bryant 548J is a high-efficiency gas furnace that combines advanced features and technologies to provide exceptional heating performance. Designed for residential applications, the furnace is notable for its ability to deliver consistent warmth while ensuring energy efficiency and reliability.

One of the main features of the Bryant 548J is its ultra-high efficiency rating, which allows homeowners to save significantly on energy costs. With an Annual Fuel Utilization Efficiency (AFUE) rating of up to 96.5%, this furnace is designed to convert a large portion of fuel into usable heat. This is a remarkable characteristic that not only reduces utility bills but also contributes to a lower environmental footprint.

The 548J is equipped with a modulating gas valve and a variable-speed blower motor. The modulating gas valve enables the furnace to adjust its heating output based on real-time temperature demands, ensuring a more precise heating experience. This results in reduced temperature fluctuations within the home, providing a comfortable living environment. The variable-speed blower motor works in tandem with the modulating valve, facilitating improved air circulation and efficient temperature control.

Additionally, the Bryant 548J features a durable and compact design, making it suitable for various installation spaces. Its quality construction ensures longevity, while the optional stainless steel heat exchanger enhances its reliability. The furnace also includes a quiet operation mode, which minimizes noise levels, ensuring that the unit works quietly in the background without disturbing the household's peace.

Integration with smart home technology is another advantage of the Bryant 548J. Homeowners have the option to connect the furnace to a Wi-Fi-enabled thermostat, allowing for remote temperature control and monitoring. This feature offers enhanced convenience and the ability to optimize energy use according to a homeowner’s schedule.

For peace of mind, the Bryant 548J comes with a range of warranties, protecting the consumer's investment. Bryant’s commitment to quality is reflected in their extensive primary heating testing procedures, which ensure that each unit meets strict performance criteria before it reaches the customer.

In summary, the Bryant 548J is an efficient and reliable gas furnace that embodies advanced heating technology. With features such as high AFUE ratings, modulating gas valves, variable-speed blowers, and smart home compatibility, it stands out as a formidable option for modern residential heating solutions.