Service and

393AAV

Maintenance Procedures

Series B&C

GAS-FIRED

INDUCED-COMBUSTION FURNACE

NOTE: Read the entire instruction manual before starting the installation.

TABLE OF CONTENTS

 

SAFETY CONSIDERATIONS

1

INTRODUCTION

2

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PRO-

CEDURE

2

CARE AND MAINTENANCE

2

Cleaning and/or Replacing Air Filter

2

Blower Motor and Wheel

3

Cleaning Heat Exchanger

4

Electrical Controls and Wiring

5

WIRING DIAGRAMS

9

Troubleshooting

9

SAFETY CONSIDERATIONS

 

Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified person- nel should install, repair, or service heating equipment.

Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on

Cancels: SP04-58

SP04-61

 

10-00

A94085

Fig. 1ÐModel 393AAV Upflow Furnace

EFFICIENCY

RATING

CERTIFIED

heating equipment, observe precautions in the literature, tags, and labels attached to or shipped with the unit and other safety precautions that may apply.

Follow all safety codes. In the United States, follow all safety codes including the National Fuel Gas Code (NFGC) NFPA No. 54-1999/ANSI Z223.1-1999 and the Installation Standards Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. In Canada, refer to the current edition of the National Standard of Canada CAN/CGA-B149.1- and .2-M95 Natural Gas and Propane Gas Installation Codes (NSCNGPIC). Wear safety glasses and work gloves. Have fire extinguisher available during start-up and adjustment procedures and service calls.

 

 

 

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REGISTERED QUALITY SYSTEM

CERTIFIED

Recognize safety information. This is the safety-alert symbol . When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury.

Understand these signal words; DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation

Ð1Ð

WARNING: The ability to properly perform mainte- nance on this equipment requires certain expertise, me- chanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment other than those procedures recom- mended in the User's Manual. FAILURE TO FOLLOW THIS WARNING COULD RESULT IN POSSIBLE DAMAGE TO THIS EQUIPMENT, SERIOUS PER- SONAL INJURY, OR DEATH.

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Bryant 393AAV instruction manual Table of Contents, Safety Considerations

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.