Bryant 820TA User Manual

Installation, Start--up, Operating and
Ser vice and M a int e nanc e Instr uc t ions
Series A
820TA/821TA
VARIABLE--SP EED, ECM
INDUCED--COMBUSTION, 2--STAGE
4--WAY MULTIPOISE, NON--CONDENSING GAS FURNACE
SAFETY CONSIDERATIONS 3........................
INTRODUCTION 4..................................
CODES AND STANDARDS 4..........................
Safety 4...........................................
General Installation 4................................
Combustion and Ventilation Air 5......................
Duct Systems 5.....................................
Acoustical Lining and Fibrous Glass Duct 5...............
Gas Piping and Gas Pipe Pressure Testing 5...............
Electrical Connections 5..............................
Venting 5.........................................
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE 5.....................................
LOCATION 6.......................................
AIR FOR COMBUSTION AND VENTILATION 7.........
Outdoor Combustion Air Method 7....................
The Standard Method: 8............................
Combination of Indoor and Outdoor Air 8..............
INSTALLATION 10..................................
Upflow Installation 10..............................
Downflow/Horizontal Installation 10..................
Leveling Legs (If Desired) 10........................
Suspended Furnace Support 11.......................
Platform Furnace Support 11.........................
Roll--Out Protection 12.............................
Bottom Return Air Inlet 11..........................
Side Return Air Inlet 11.............................
Filter Arrangement 11..............................
AIR DUCTS 12......................................
Ductwork Acoustical Treatment 12....................
Supply Air Connections 12..........................
Upflow and Horizontal Furnaces 12...................
Downflow Furnaces 13.............................
Return Air Connections 19..........................
Downflow Furnaces 19.............................
Upflow and Horizontal Furnaces 19...................
GAS PIPING 19.....................................
ELECTRICAL CONNECTION 21.......................
ACCESSORIES 23...................................
VENTING 24.......................................
START-- UP, ADJUSTMENT, AND SAFETY CHECK 34.....
Start--Up Procedures 35..............................
Adjustments 37.....................................
Wiring Diagram 40..................................
Check Safety Controls 47.............................
Checklist 44.......................................
SERVICE AND MAINTENANCE PROCEDURES 44.......
General 45........................................
Care and Maintenance 46.............................
Sequence of Operation 49.............................
Troubleshooting 53..................................
PARTS REPLACEMENT INFORMATION GUIDE 55.......
NOTE: Read the entire instruction manual before starting the
installation.
Portions of the text and tables are reprinted from NFPA 54/ANSI
Z223.1E, with permission of National Fire Protection
Association, Quincy, MA 02269 and American Gas Association,
Washington DC 20001. This reprinted material is not the
complete and official position of the NFPA or ANSI on the
referenced subject, which is represented only by the standard in
its entirety.

Bryant 820TA Specifications

General

Brand	Bryant
Model	820TA
Category	Furnace
Language	English

Summary

SAFETY CONSIDERATIONS

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE

Steps to prevent damage from static discharge during handling and servicing.

LOCATION

Guidelines for selecting an appropriate installation location for the furnace.

AIR FOR COMBUSTION AND VENTILATION

Requirements for supplying adequate air for combustion and ventilation.

INSTALLATION

UPFLOW INSTALLATION

Specific instructions for installing the furnace in an upflow configuration.

DOWNFLOW INSTALLATION

Instructions for installing the furnace in a downflow configuration.

HORIZONTAL INSTALLATION

Instructions for installing the furnace in a horizontal configuration.

SUSPENDED FURNACE SUPPORT

Methods for securely supporting the furnace when suspended.

AIR DUCTS

Guidelines for designing and connecting air duct systems to the furnace.

GAS PIPING

Instructions for safely connecting the gas supply piping to the furnace.

ELECTRICAL CONNECTION

Procedures for making safe and correct electrical connections.

VENTING

GENERAL VENTING REQUIREMENTS

General safety and installation requirements for furnace venting systems.

MASONRY CHIMNEY REQUIREMENT

Requirements and guidelines for using masonry chimneys with the furnace.

START-UP, ADJUSTMENT, AND SAFETY CHECK

GENERAL

General procedures for furnace start-up and initial checks.

START-UP PROCEDURES

Step-by-step instructions for initial furnace start-up.

ADJUSTMENTS

Procedures for adjusting furnace settings for optimal performance.

CHECK SAFETY CONTROLS

How to verify the proper operation of all safety controls.

SERVICE AND MAINTENANCE PROCEDURES

GENERAL

General instructions for furnace service and maintenance.

CARE AND MAINTENANCE

Routine procedures for maintaining furnace performance and longevity.

CLEANING AND/OR REPLACING AIR FILTER

Steps for cleaning or replacing the furnace air filter.

BLOWER MOTOR AND WHEEL

Procedures for cleaning and maintaining the blower motor and wheel.

SEQUENCE OF OPERATION

TWO-STAGE HEATING (ADAPTIVE MODE) WITH SINGLE-STAGE THERMOSTAT

Operation sequence for two-stage heating with a single-stage thermostat.

COOLING MODE

Explanation of the furnace's operation during cooling cycles.

CONTINUOUS BLOWER MODE

Operation of the blower in continuous mode and its adjustments.

HEAT PUMP

Operation sequence when the furnace is used with a heat pump.

TROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE – VARIABLE SPEED

A guide to diagnose and resolve operational problems based on status codes.

PARTS REPLACEMENT INFORMATION GUIDE

TO OBTAIN INFORMATION ON PARTS

Information on how to find and order replacement parts for the furnace.