NOTE: Be sure to engage rear EconoMi$er flange under tabs in return air opening of the unit base. See Fig. 28.

8. Install the outdoor air block-off plate, then secure the EconoMi$er with the screws provided. See Fig. 27 and 29.

9. Remove and save the 12-pin blue and yellow wire jumper plug from the unit wiring harness located in the upper left corner and insert the EconoMi$er plug. Refer to wiring diagram Fig. 30 and 31. Also refer to Fig. 32 if installing an accessory power exhaust.

10. Remove shipping tape from barometric relief damp- ers and ensure dampers move freely.

ECONOMI$ER

CONTROLLER

GEAR-DRIVEN

PLUG

 

DAMPER

ACTUATOR

 

 

Fig. 21 — Durablade Economizer Barometric Relief

Damper Characteristics

C. Optional EconoMi$er

OUTDOOR AIR TEMPERATURE SENSOR

See Fig. 22 for EconoMi$er component locations.

1.To remove the existing unit filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the track and can be removed. Remove the indoor coil access panel and discard. See Fig. 23.

Controller should be mounted in vertical position as shown in Fig. 22.

2.Assemble the hood assembly as follows:

Remove the EconoMi$er hood from its packaging. Locate the outdoor air opening panel. See Fig. 24. Remove hood assembly shipping brackets located on back (sloped) side of EconoMi$er assembly. These brackets are used to retain hood assembly during shipping only.

3.Install the 1/8 x 3/4 in. seal strip on the exhaust air hood side panels and the bottom bracket. Assemble the exhaust air hood to the outdoor air opening panel as shown in Fig. 24, using the screws provided. Do not attach hood assembly to unit at this time.

4.Install the 1/8 x 7/8 in. seal strip on the outdoor air hood top and side panels. Assemble the outdoor air hood to the outdoor air opening panel as shown in Fig. 25, using the screws provided. Do not attach hood assembly to the unit as this time.

5.Slide the outdoor air inlet screens into the screen track on the hood side panels. While holding the screens in place, fasten the screen retainer to the hood using the screws provided. Repeat the process for the barometric exhaust air screen. Do not attach completed (Fig. 26) hood assembly to unit at this time.

6.Install the return air block-off plate over the return air duct opening. See Fig. 27.

7.Slide the EconoMi$er assembly into the rooftop unit. See Fig. 28 and 29.

BAROMETRIC

RELIEF DAMPERS

Fig. 22 — EconoMi$er Component Locations

OUTDOOR-AIR

FILTER ACCESS

OPENING PANEL

PANEL

Fig. 23 — Typical Access Panel Locations

—15—

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Bryant 548D installation instructions EconoMi$er Component Locations
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548D specifications

The Bryant 548D heat pump stands out in the HVAC market for its robust performance, energy efficiency, and advanced technology. Known for its reliability, this particular model is designed to provide optimal heating and cooling for both residential and light commercial applications.

One of the standout features of the Bryant 548D is its variable-speed compressor, which allows for precise temperature control and enhances comfort levels in any environment. This technology enables the 548D to operate efficiently at different speeds, adjusting its output based on the heating or cooling demand. As a result, homeowners can enjoy consistent temperature regulation without the wide fluctuations typical of single-stage systems.

In addition to the variable-speed compressor, the Bryant 548D utilizes advanced refrigerant technology. It employs the environmentally friendly Puron refrigerant, which not only improves the unit's efficiency but also reduces its carbon footprint. This makes the 548D a sustainable choice for those looking to minimize their environmental impact while still enjoying superior heating and cooling performance.

Another key characteristic of the Bryant 548D is its impressive energy efficiency rating, often exceeding the minimum requirements set by the Department of Energy. With a high Seasonal Energy Efficiency Ratio (SEER) for cooling in warmer months and an excellent Heating Seasonal Performance Factor (HSPF), the 548D minimizes energy consumption while maximizing comfort.

The 548D also features Quiet Operation technology, ensuring that the system runs quietly in the background without disrupting daily activities. This is particularly beneficial for light commercial spaces or homes where noise can be a concern. The sleek design and compact size make the unit easy to install in various settings without occupying excessive space.

Furthermore, Bryant incorporates advanced smart technology within the 548D model. The system can be integrated with smart thermostats, allowing users to monitor and control their heating and cooling settings remotely. This feature not only enhances convenience but also enables homeowners to program their systems for maximum efficiency.

In conclusion, the Bryant 548D heat pump is an exceptional choice for those seeking a reliable, efficient, and technologically advanced heating and cooling solution. Its combination of variable-speed compression, eco-friendly refrigerant, high energy efficiency, and quiet operation positions it well in the competitive HVAC market, making it a top choice for both residential and light commercial applications. By investing in the Bryant 548D, consumers can enjoy superior comfort and lower energy bills year-round.
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