IMPORTANT: If the power exhaust accessory is to be installed on the unit, the hood shipped with the unit will not be used and must be discarded. Save the aluminum filter for use in the power exhaust hood assembly.

3.The indoor coil access panel will be used as the top of the hood. Remove the screws along the sides and bot- tom of the indoor coil access panel. See Fig. 24.

4.Swing out indoor coil access panel and insert the hood sides under the panel (hood top). Use the screws provided to attach the hood sides to the hood top. Use screws provided to attach the hood sides to the unit. See Fig. 25.

5.Remove the shipping tape holding the economizer barometric relief damper in place.

6.Insert the hood divider between the hood sides. See Fig. 25 and 26. Secure hood divider with 2 screws on each hood side. The hood divider is also used as the bottom filter rack for the aluminum filter.

SIDE

PANEL

 

TOP

 

SIDE

 

PANEL

 

CAULK

 

HERE

INDOOR

INDOOR

COIL

COIL

ACCESS

ACCESS

PANEL

PANEL

Fig. 24 — Indoor Coil Access Panel Relocation

TOP

PANEL

INDOOR COIL

ACCESS PANEL

LEFT

 

HOOD

SCREW

SIDE

B

 

19 1/16”

33 3/8”

HOOD DIVIDER

Fig. 25 — Outdoor-Air Hood Construction

17 1/4”

DIVIDER

OUTSIDE

AIR

HOOD

CLEANABLE

ALUMINUM FILTER

FILTER

BAROMETRIC RELIEF

FILTER CLIP

Fig. 26 — Filter Installation

7.Open the filter clips which are located underneath the hood top. Insert the aluminum filter into the bot- tom filter rack (hood divider). Push the filter into position past the open filter clips. Close the filter clips to lock the filter into place. See Fig. 26.

8.Caulk the ends of the joint between the unit top panel and the hood top. See Fig. 24.

9.Replace the filter access panel.

10.Install all EconoMi$er IV accessories. EconoMi$er IV wiring is shown in Fig. 27.

Barometric flow capacity is shown in Fig. 28. Outdoor air leakage is shown in Fig. 29. Return air pressure drop is shown in Fig. 30.

F. EconoMi$er IV Standard Sensors

Outdoor Air Temperature (OAT) Sensor

The outdoor air temperature sensor (HH57AC074) is a 10 to 20 mA device used to measure the outdoor-air temperature. The outdoor-air temperature is used to determine when the EconoMi$er IV can be used for free cooling. The sensor is factory-installed on the EconoMi$er IV in the outdoor airstream. See Fig. 21. The operating range of temperature measurement is 40 to 100 F.

Supply Air Temperature (SAT) Sensor

The supply air temperature sensor is a 3 K thermistor located at the inlet of the indoor fan. See Fig. 31. This sensor is factory installed. The operating range of temperature measurement is 0° to 158 F. See Table 3 for sensor tempera- ture/resistance values.

The temperature sensor looks like an eyelet terminal with wires running to it. The sensor is located in the “crimp end” and is sealed from moisture.

Outdoor Air Lockout Sensor

The EconoMi$er IV is equipped with an ambient tempera- ture lockout switch located in the outdoor airstream which is used to lockout the compressors below a 42 F ambient tem- perature. See Fig. 21.

—16—

Page 15 Page 17
Page 16
Image 16
Bryant 581B installation instructions Indoor Coil Access Panel Relocation, EconoMi$er IV Standard Sensors
Page 15 Page 17

581B specifications

The Bryant 581B is an innovative and highly efficient gas furnace that stands out in the HVAC market for its remarkable performance, reliability, and advanced features. Designed to provide optimal heating comfort, the Bryant 581B is perfect for homeowners seeking both quality and energy efficiency.

One of the main features of the Bryant 581B is its impressive Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 80%, this gas furnace maximizes energy usage, ensuring that a significant portion of the fuel is converted into heat for your home. This efficiency not only translates into lower energy bills but also reduces the carbon footprint, making it an environmentally friendly choice.

The furnace is equipped with a multi-speed blower motor that enhances comfort by providing consistent airflow throughout the home. This technology adjusts to different heating demands, ensuring that every room reaches the desired temperature without the discomfort of hot or cold spots. The quiet operation of the blower motor also adds to the overall comfort, creating a peaceful home environment.

Another notable characteristic of the Bryant 581B is its durable construction. It features a robust heat exchanger built from high-quality materials, designed to withstand the rigors of daily use. The compact design of the furnace allows it to fit seamlessly into various spaces, making it an ideal choice for both new installations and replacement projects.

The Bryant 581B also comes with advanced safety features, including a self-diagnostic control board that monitors the system's performance. This feature allows for easy troubleshooting and maintenance, prolonging the life of the furnace. Additionally, the furnace is equipped with an induced draft blower that enhances venting efficiency and safety by ensuring that combustion gases are safely expelled from the home.

For homeowners looking for enhanced control, the Bryant 581B is compatible with a range of smart thermostats, providing the ability to monitor and adjust heating settings remotely. This integration with smart technology ensures that homeowners can maintain their desired comfort levels while maximizing efficiency.

In conclusion, the Bryant 581B gas furnace is a top-tier option that combines efficiency, durability, and modern technology. With its high AFUE rating, multi-speed blower, and advanced safety features, it promises to deliver unparalleled comfort and peace of mind for years to come. Whether for a new build or an upgrade, the Bryant 581B is an investment that pays off in both comfort and savings.
Top Page Image Contents