Wiring Diagrams, Troubleshooting, Ð9Ð

4.If furnace is operating properly and LED indicates proper operation, replace control access door.

5.Component Test can also be initiated by performing the following:

a.Remove control access door.

b.Remove blower access door.

c.Manually close blower access door switch.

WARNING: Blower access door switch opens 115-v power to control. No component operation can occur. Caution must be taken when manually closing this switch for service purposes. Failure to follow this warning could result in personal injury or death.

d.BRIEFLY short (jumper) TEST, 3/16 in. quick connect terminal on control (adjacent to LED status light), and COM-24V terminal on furnace control thermostat termi- nal block. (See Fig. 6.)

NOTE: If TEST to COM-24V terminals are jumpered longer than 2 sec, LED will flash rapidly, and test request will be ignored.

e. Component Test will function as described in item 2 above.

f.Check LED status.

g.If LED status indicates proper operation, RELEASE BLOWER ACCESS DOOR SWITCH, replace blower access door, and replace control access door.

WIRING DIAGRAMS

Refer to Fig. 5, 6, and 7 for wiring diagrams.

TROUBLESHOOTING

Refer to service label. (See Fig. 8.) The Troubleshooting Guide can be a useful tool in isolating furnace operation problems. Beginning with the word ªStart,º answer each question and follow the appropriate arrow to the next item.

The Guide will help you identify the problem or failed component. After replacing any component, verify correct operation sequence.

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393AAV specifications

The Bryant 393AAV is a high-efficiency gas furnace designed to deliver reliable heating performance for residential applications. Crafted for homeowners seeking both comfort and energy savings, this model combines advanced technology with robust features to ensure optimal indoor climate control.

One of the standout characteristics of the Bryant 393AAV is its variable-speed ECM blower motor. This innovative motor allows for smooth and quiet operation while also enhancing energy efficiency. By adjusting its speed based on the heating demands of the home, the unit promotes consistent temperatures and improved airflow, ensuring that every room is evenly heated.

The furnace has an Annual Fuel Utilization Efficiency (AFUE) rating of up to 96.5%, making it one of the most efficient options available. This high AFUE rating signifies that a significant portion of the fuel consumed is converted into usable heat, leading to reduced utility bills and a smaller carbon footprint. The 393AAV’s two-stage gas valve further contributes to its efficiency. By operating at a lower capacity during milder conditions and switching to a higher capacity when temperatures drop, this feature allows homeowners to enjoy a comfortable environment while minimizing energy consumption.

In terms of durability, the Bryant 393AAV is built to last. It features a corrosion-resistant heat exchanger constructed from premium materials to withstand the test of time. Additionally, the furnace is equipped with a reliable ignition system, ensuring safe and efficient startup with each heating cycle. The design includes an insulated cabinet that not only reduces noise levels but also improves energy efficiency by minimizing heat loss.

Installation and maintenance of the Bryant 393AAV are user-friendly. The unit has a compact design that makes it easier to fit into various spaces within the home. Regular maintenance is facilitated through access panels that allow technicians to reach key components with ease, promoting longevity and sustained performance.

In conclusion, the Bryant 393AAV is a modern gas furnace that excels in efficiency, comfort, and reliability. With features like a variable-speed blower motor, high AFUE ratings, and a robust design, homeowners can trust this unit to provide consistent heating while helping to reduce overall energy costs. This furnace is an excellent choice for those looking to invest in a heating solution that aligns with both comfort and sustainability goals.