Install field-supplied manual gas shutoff valve with a 1/8-in. NPT pressure tap for test gage connection at unit. The pressure tap is located on the gas manifold, adjacent to the gas valve. Field gas piping must include sediment trap and union. See Fig. 14.

NOTE: Dimensions A, A′, B, and B′ are obtained from field-supplied ceiling diffuser.

Shaded areas indicate block-off pans.

Fig. 9 — Concentric Duct Details

VI. STEP 6 — INSTALL FLUE HOOD AND INLET HOOD

Flue hood (smaller hood), inlet hood (larger hood), and screens are shipped inside the unit in the fan section. To install, remove the heat panel. The flue hood is attached to the heat section panel from the outside using the screws pro- vided. See Fig. 10.

The inlet hood is installed by inserting the hood through the back of the heat panel. Attach the hood by inserting the screws provided through the clearance holes in the heat panel and into the intake hood.

Install the screens into both hoods using the screws and retaining nuts provided with the unit.

Attach the cover of the observation hole on the intake hood and then replace the heat panel onto the unit to complete the installation.

NOTE: When properly installed, the flue hood will line up with the combustion fan housing. See Fig. 11.

VII. STEP 7 — TRAP CONDENSATE DRAIN

See Fig. 12 for drain location. One 3/4-in. half coupling is pro- vided outside unit evaporator section for condensate drain connection. A trap at least 4-in. deep must be used. See Fig. 13.

All units must have an external trap for condensate drain- age. Install a trap at least 4 in. deep and protect against freeze-up. If drain line is installed downstream from the external trap, pitch the line away from the unit at 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection.

VIII. STEP 8 — INSTALL GAS PIPING

Unit is equipped for use with natural gas. Refer to local building codes, or in the absence of local codes, to ANSI (American National Standards Institute) Z223.1-latest year and addendum Z223.1A-latest year entitled NFGC. In Can- ada, installation must be in accordance with the CAN1.B149.1 and CAN1.B149.2 installation codes for gas burning appliances.

Support gas piping. For example, a 3/4-in. gas pipe must have one field-fabricated support beam every 8 ft. Therefore, an 18-ft long gas pipe would have a minimum of 3 support beams.

FLUE HOOD

INLET HOOD

Fig. 10 — Flue and Inlet Hood Locations

COMBUSTION

FAN HOUSING

HEAT

EXCHANGER

SECTION INDUCED-DRAFT MOTOR

MAIN BURNER

SECTION

Fig. 11 — Combustion Fan Housing Location

—10—

Page 9 Page 11
Page 10
Image 10
Bryant 581A operation manual VI. Install Flue Hood and Inlet Hood, VII. Trap Condensate Drain, VIII. Install GAS Piping
Page 9 Page 11

581A specifications

The Bryant 581A is a pivotal model in the realm of heating, ventilation, and air conditioning (HVAC) systems, known for its robust performance and energy efficiency. As part of the Bryant product lineup, the 581A offers a blend of innovative technologies combined with reliable engineering, making it a suitable choice for both residential and light commercial applications.

One of the standout features of the Bryant 581A is its outstanding energy efficiency. With a Seasonal Energy Efficiency Ratio (SEER) rating of up to 16, this model meets Energy Star qualifications, ensuring that homeowners can enjoy lower utility bills while helping to reduce their environmental footprint. The efficiency is further enhanced by the unit’s environmentally friendly refrigerant, which not only improves performance but also aligns with modern sustainability standards.

Another key characteristic of the Bryant 581A is its durable construction. Designed to withstand various weather conditions, the unit features a robust cabinet that protects internal components. This durability not only prolongs the lifespan of the system but also minimizes the need for frequent maintenance or repairs. The coil design is optimized for heat transfer efficiency, enhancing the unit's overall performance in both cooling and heating modes.

In terms of technology, the Bryant 581A incorporates advanced control systems that enable precise temperature regulation. The multi-stage cooling capabilities ensure that the system can adapt to varying temperature demands, providing comfort in all seasons. Additionally, the model is compatible with smart thermostats, allowing homeowners to control their HVAC system remotely via smartphone or other connected devices.

Noise reduction is another aspect where the Bryant 581A excels. Equipped with a variable-speed compressor and sound-dampening features, this model operates quietly, minimizing disruption in residential or office environments. This focus on acoustic comfort makes it an ideal choice for those who value a peaceful living or working space.

Overall, the Bryant 581A represents an excellent balance of efficiency, durability, and modern technology. With features aimed at enhancing user comfort and reducing operational costs, it stands out as a reliable solution in the competitive HVAC market. Whether for new installations or replacements, the Bryant 581A is a testament to the brand’s commitment to quality and innovation in home climate control.
Top Page Image Contents