Bryant Deluxe 340AAV User Manual

1
340AAV
Deluxe 4--Way
Multipoise Fixed--Capacity
Condensing Gas Furnace
Service and Maintenance Instructions
For Sizes 040--120, Series B
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1.........................
GENERAL 2.........................................
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 2...
CARE AND MAINTENANCE 3.........................
Cleaning and/or Replacing Air Filter 3....................
Blower Motor and Wheel Maintenance 4..................
Cleaning Burners 6...................................
Cleaning Heat Exchangers 7............................
Primary Heat Exchangers 7............................
Secondary Heat Exchangers 7..........................
Flushing Collector Box and Drainage System 8.............
Servicing Hot Surface Igniter 10.........................
Electrical Controls and Wiring 11........................
Checking Heat Ta pe Operation (If Applicable) 11...........
Winterizing 13......................................
WIRING DIAGRAM 13................................
TROUBLESHOOTING 13..............................
Status Codes 13.....................................
Component Tests 14..................................
ELECTRICAL SHOCK, FIRE, OR EXPLOSION
HAZARD
Failure to follow safety warnings exactly could result in
dangerous operation, personal injury, death, or property
damage.
-- Before servicing, disconnect all electrical power to furnace.
--When servicing controls, label all wires prior to
disconnecting. Reconnect wires correctly.
-- Verify proper operation after servicing.
!
WARNING
SAFETY CONSIDERATIONS
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 the 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 a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may 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.
ELECTRICAL SHOCK, FIRE, OR EXPLOSION
HAZARD
Failure to follow this warning could result in possible
damage to this equipment, personal injury, or death.
The ability to properly perform maintenance on this
equipment requires certain expertise, mechanical skills,
tools, and equipment. If you do not possess these, do not
attempt to perform any maintenance on this equipment
other than those procedures recommended in the User’s
Manual.
!
WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could property damage,
personal injury, or death.
Never store anything on, near, or in contact with the furnace,
such as:
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum
cleaners, or other cleaning tools.
2. Soap powders, bleaches, waxes or other cleaning
compounds, plastic or plastic containers, gasoline, kerosene,
cigarette lighter fluid, dry cleaning fluids, or other volatile
fluids.
3. Paint thinners and other painting compounds, paper bags,
or other paper products.
!
WARNING

Bryant Deluxe 340AAV Specifications

General

Model	340AAV
Type	Gas Furnace
Fuel Type	Natural Gas or Propane
Blower Type	Variable Speed
Ignition	Hot Surface Ignition
Heating Capacity	40, 000 to 120, 000 BTU/h
Stages	Two-Stage
Warranty	10-Year Parts Limited Warranty

Summary

Safety Considerations

Electrical Shock, Fire, or Explosion Hazard

Follow safety warnings to prevent dangerous operation, injury, death, or property damage.

Fire or Explosion Hazard

Avoid storing flammable materials near the furnace to prevent fire or explosion.

General Information and ESD

General Furnace Installation

Describes furnace installation types and airflow orientations.

Electrostatic Discharge (ESD) Precautions

Steps to prevent damage to electronic components from static discharge.

Care and Maintenance Overview

Electrical Shock Hazard During Maintenance

Disconnect power before performing maintenance to avoid electrical shock.

Cut Hazard During Maintenance

Exercise caution with sharp edges and wear protective gear during part removal.

Air Filter Maintenance

Procedure for cleaning or replacing the air filter as part of regular maintenance.

Blower Motor and Wheel Maintenance

Blower Motor Lubrication

Note that inducer and blower motors are pre-lubricated and require no additional lubrication.

Blower Motor and Wheel Cleaning

Cleaning the Blower Motor and Wheel

Steps for cleaning and reassembling the blower motor and wheel assembly.

Blower Motor Speed Selection

Adjusting Heating Speed

Guidance on adjusting heating speed for proper temperature rise.

Cleaning Burners

Burner Assembly and Manifold Service

Procedure for cleaning the burner box, manifold, and related components.

Igniter Wire Placement Safety

Ensuring igniter wires are securely placed to prevent pinching or severing.

Cleaning Primary Heat Exchangers

Primary Heat Exchanger Cleaning Steps

Instructions for cleaning primary heat exchangers and identifying issues.

Flushing Collector Box and Drainage

Collector Box and Drainage System Flush

Steps to flush the collector box and drainage system to ensure proper operation.

Servicing Hot Surface Igniter

Igniter Resistance Check and Replacement

Procedure to check igniter resistance and replace if necessary.

Electrical Controls and Wiring

Checking Electrical Connections

Inspect and tighten electrical connections for safe and proper operation.

Checking Heat Tape Operation

Heat Tape Inspection for Freeze Protection

Check heat tape for physical damage and ensure its power supply is active.

Wiring Diagrams and Control Center

Field Wiring Diagram Overview

Diagram showing field wiring connections to the furnace control.

Control Center Components

Illustration and explanation of the furnace control center components.

Winterizing Procedures

Furnace Winterization Steps

Steps to prepare the furnace for extended periods in freezing temperatures.

Troubleshooting and Status Codes

Status Code Explanation

Guide to understanding and interpreting furnace status codes for diagnostics.

Component Test Procedure

Initiating Component Self-Test

Steps to initiate the component self-test sequence for diagnosing issues.

Detailed Status Codes and Service

Explanation of LED Status Codes

Detailed meanings and troubleshooting steps for various LED status codes.

Wiring Diagram Details

Schematic Diagram Components

Explanation of components and symbols used in the wiring schematic.

Troubleshooting Guide Flowchart

Step-by-Step Troubleshooting Steps

Flowchart to diagnose furnace issues based on LED status and voltage checks.

Troubleshooting Specific Fault Codes

Detailed Fault Code Explanations

In-depth explanations and checks for specific fault codes and lockout conditions.