23 09 93.13 Insert Sequence of Operation

558J

7.Shall have an LED display independently showing the status of serial communication, running, errors, power, all digital outputs, and all analog inputs.

8.Shall accept the following inputs: Space temperature, Set point adjustment, Outdoor Air temperature, indoor Air quality, outdoor air quality, compressor lock-out, fire shutdown, enthalpy switch, and fan status/filter status/ humidity/ remote occupancy.

9.Shall provide the following outputs: Economizer, fan, cooling stage 1, cooling stage 2, heat stage 1, heat stage 2, heat stage 3/ exhaust/ reversing valve.

10.Shall have built-in surge protection circuitry through solid state polyswitches. Polyswitches shall be used on incoming power and network connections. Polyswitches will return to normal when the “trip” condition clears.

11.Shall have a battery back-up capable of a minimum of 10,000 hours of data and time clock retention during power outages.

12.Shall have built-in support for Bryant service tool.

13.Shall include an EIA-485 protocol communication port, an access port for connection of either a computer or a Bryant service tool, an EIA-485 port for network communication to intelligent space sensors and displays, and a port to connect an optional LonWorks communications card.

14.Software upgrades will be accomplished by either local or remote download. No software upgrades through chip replacements are allowed.

23 09 33 Electric and Electronic Control System for HVAC

23 09 33.13 Decentralized, Rooftop Units:

23 09 33.13.A. General:

1.Shall be complete with self-contained low-voltage control circuit protected by a fuse on the 24-v transformer side (04-07 units have a resettable circuit breaker).

2.Shall utilize color-coded wiring.

3.Unit shall be include self-contained low-voltage control circuit protected by a fuse on the 24-v transformer side with a resettable circuit breaker.

4.The heat exchanger shall be controlled by an integrated gas controller (IGC) microprocessor. See heat ex- changer section of this specification.

5.Unit shall include a minimum of one 8-pin screw terminal connection board for connection of control wiring.

23 09 33.23.B, Safeties:

1.Compressor over-temperature, over current.

2.Low-pressure switch.

a.Units with 2 compressors shall have different sized connectors for the circuit 1 and circuit 2 Low and High Pressure switches. They shall physically prevent the cross-wiring of the safety switches between circuits 1 and 2.

b.Low pressure switch shall use different color wire than the high pressure switch. The purpose is to assist the installer and service person to correctly wire and or troubleshoot the rooftop unit.

3.High-pressure switch.

b.High pressure switch shall use different color wire than the low pressure switch. The purpose is to assist the installer and service person to correctly wire and or troubleshoot the rooftop unit.

4.Automatic reset, motor thermal overload protector.

5.N/A

23 09 93 Sequence of Operations for HVAC Controls

23 09 93.13 Decentralized, Rooftop Units:

23 09 93.13 INSERT SEQUENCE OF OPERATION

23 40 13 Panel Air Filters

23 40 13.13 Decentralized, Rooftop Units:

23 40 13.13.A. Standard filter section shall

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

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

3.Filter face velocity shall not exceed 365 fpm at nominal airflows.

558J specifications

The Bryant 558J is a high-efficiency air conditioning unit that provides outstanding comfort and performance for residential spaces. Engineered with contemporary technology, this HVAC system showcases a blend of innovative features designed to enhance user experience while promoting energy efficiency.

One of the main features of the Bryant 558J is its high Seasonal Energy Efficiency Ratio (SEER) rating, which ensures optimal energy savings while providing consistent cooling throughout the warmer months. This model boasts an impressive SEER that positions it among the top performers in its category, making it an excellent choice for environmentally-conscious homeowners looking to reduce their energy consumption.

The Bryant 558J utilizes advanced variable-speed compressor technology. This means it can adjust its cooling output dynamically based on indoor temperature requirements, which results in improved temperature consistency and quieter operation. Unlike single-speed systems that can be noisy during operation, the variable-speed compressor provides a more tranquil living environment, as it can run at lower speeds for extended periods.

Additionally, the unit is equipped with a durable, all-weather cabinet designed to resist corrosion and withstand the elements, ensuring longevity and reliability. The unit's aesthetic design also allows it to blend seamlessly into most outdoor settings, enhancing curb appeal without compromising functionality.

In terms of installation and maintenance, the Bryant 558J offers user-friendly features. Its compact design makes it easy to install in tight spaces, while the easy-access panel allows for straightforward maintenance and servicing, reducing downtime and improving overall efficiency.

The unit is compatible with smart thermostats, allowing homeowners to integrate modern technology into their HVAC systems. This compatibility empowers users to control their home environment remotely, monitor energy usage, and create personalized schedules that align with their lifestyles.

Furthermore, the Bryant 558J comes with a comprehensive warranty, offering peace of mind to residents investing in a cooling solution. This level of backing evidences the manufacturer's commitment to quality and customer satisfaction.

In summary, the Bryant 558J stands out as a premier air conditioning solution characterized by its high efficiency, variable-speed technology, durable construction, and modern compatibility. Whether for new installations or replacements, this model exemplifies the perfect balance of comfort, reliability, and energy savings, making it a worthwhile investment for any homeowner.