Installation, Start--up, Operating and
Ser vice and M a int e nanc e Instr uc t ions
Series A
880TA/881TA
VARIABLE--SPEED, INDUCED--COMBUSTION
4--WAY MULTIPOISE GAS FURNACE
SAFETY CONSIDERATIONS 2........................
INTRODUCTION 4..................................
CODES AND STANDARDS 4..........................
Safety 4...........................................
General Installation 4................................
Combustion and Ventilation Air 4......................
Duct Systems 4.....................................
Acoustical Lining and Fibrous Glass Duct 4...............
Gas Piping and Gas Pipe Pressure Testing 4...............
Electrical Connections 4..............................
Venting 4.........................................
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE 4.....................................
LOCATION 6.......................................
AIR FOR COMBUSTION AND VENTILATION 8.........
Outdoor Combustion Air Method 9....................
The Standard Method: 9............................
Combination of Indoor and Outdoor Air 10.............
INSTALLATION 10..................................
Upflow Installation 10.............................
Downflow Installation 11...........................
Horizontal Installation 11...........................
AIR DUCTS 13......................................
Ductwork Acoustical Treatment 13....................
Supply Air Connections 13..........................
Upflow and Horizontal Furnaces 14...................
Downflow Furnaces 14.............................
AIR DELIVERY 18..................................
GAS PIPING 22.....................................
ELECTRICAL CONNECTION 23.......................
ACCESSORIES 25...................................
VENTING 30.......................................
START-- UP, ADJUSTMENT, AND SAFETY CHECK 36.....
Furnace Setup Switch Description 38....................
Service Label 38....................................
Adjustments 39.....................................
Gas Rate 43.......................................
Gas Orifice and Manifold Pressure 44....................
Check Safety Controls 48.............................
Checklist 48.......................................
SERVICE AND MAINTENANCE PROCEDURES 48.......
Care and Maintenance 50.............................
Sequence of Operation 53.............................
Wiring Diagram 42..................................
Troubleshooting 60..................................
PARTS REPLACEMENT INFORMATION GUIDE 61.......
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.
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