INDUCED DRAFT

MOTOR

COMBUSTION

MAIN BURNER

HEAT EXCHANGER

FAN HOUSING

SECTION

SECTION

Fig. 10 — Combustion Fan Housing Location

VI. STEP 6 — TRAP CONDENSATE DRAIN

See Fig. 4, 5, and 11 fore drain location. Plug is provided in drain hole and must be removed when unit is operating. One 3/4 in. half coupling is provided inside unit evaporator section for condensate drain connection. An 81/2 in. x 3/4 in. diameter nipple and a 2 in. x 3/4 in. diameter pipe nipple are coupled to standard 3/4 in. diameter elbow to provide a straight path down through holes in unit base rails (see Fig. 11 and 12). A trap at least 4 inches deep must be used.

VII. STEP 7 — INSTALL GAS PIPING

The gas supply pipe enters the unit through the 11/2 in. diameter knockout provided. The gas connection to the unit is made to the 3/4 in. FPT gas inlet on the gas manifold. Unit is equipped for use with natural gas. Installation must con- form with local building codes or, in the absence of local codes, with the National Fuel Gas code, ANSI Z223.1.

Install field-supplied manual gas shutoff valve with a 1/8 in. NPT pressure tap for test gage connection at unit. Field gas piping must include sediment trap and union. See Fig. 13. Install sediment trap in riser leading to heating section. This drip leg functions as a trap for dirt and condensate. Install trap where condensate cannot freeze. Install this sediment trap by connecting a piping tee to riser leading to heating section, so that straight-through section of tee is vertical. Then, connect capped nipple into lower end of tee. Extend capped nipple below level of gas controls.

WARNING: Do not pressure test gas supply while connected to unit. Always disconnect union before servicing.

IMPORTANT: Natural gas pressure at unit gas connection must not be less than 5.5 in. wg or greater than 13.5 in. wg.

Size gas-supply piping for 0.5-in. wg maximum pressure drop. Do not use supply pipe smaller than unit gas connection.

VIII. STEP 8 — MAKE ELECTRICAL CONNECTIONS

A. Field Power Supply

Unit is factory wired for voltage shown on unit nameplate.

When installing units, provide a disconnect per NEC (National Electrical Code) requirements of adequate size (Table 2).

All field wiring must comply with NEC and local require- ments. Insulate low-voltage wires for highest voltage con- tained within conduit when low-voltage control wires are run in the same conduit as high-voltage wires.

INDOOR MOTOR ACCESS

FILTER

ACCESS

3/4" FPT DRAIN

1-3/8"

CONNECTION

DRAIN HOLE

Fig. 11 — Condensate Drain Details

(581A155 Shown)

Fig. 12 — Condensate Drain Piping Details

Fig. 13 — Field Gas Piping

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Bryant 581A VI. Trap Condensate Drain, VII. Install GAS Piping, VIII. Make Electrical Connections, Field Power Supply
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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.
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