1
58CTW/CTY
V a r i a b l e --- S p e e d , E C M
I n d u c e d --- C o m b u s t i o n 2 --- S t a g e D e l u x e
4---Way Multipoise Gas Furnace
Series 100
Installation, Start---up, Operating and
Se rvice and Maint enance Ins t r uct io ns
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 5.......................................
AIR FOR COMBUSTION AND VENTILATION 8.........
Outdoor Combustion Air Method 9....................
The Standard Method: 9............................
Combination of Indoor and Outdoor Air 10.............
INSTALLATION 10..................................
Bottom Return Air Inlet 10..........................
Side Return Air Inlet 10.............................
Leveling Legs (If Desired) 11........................
Bottom Return Air Inlet 11..........................
Suspended Furnace Support 11.......................
Platform Furnace Support 11.........................
Roll--Out Protection 12.............................
Bottom Return Air Inlet 12..........................
Side Return Air Inlet 12.............................
Filter Arrangement 13..............................
AIR DUCTS 13......................................
General Requirements 13............................
Ductwork Acoustical Treatment 13....................
Supply Air Connections 14..........................
Upflow and Horizontal Furnaces 14...................
Downflow Furnaces 14.............................
Return Air Connections 20..........................
Downflow Furnaces 20.............................
Upflow and Horizontal Furnaces 20...................
GAS PIPING 20.....................................
ELECTRICAL CONNECTION 21.......................
ACCESSORIES 23...................................
VENTING 23.......................................
START--UP, ADJUSTMENT, AND SAFETY CHECK 35.....
General 35........................................
Start--Up Procedures 36..............................
Adjustments 38.....................................
Check Safety Controls 45.............................
Checklist 45.......................................
SERVICE AND MAINTENANCE PROCEDURES 45.......
General 45........................................
Care and Maintenance 47.............................
Sequence of Operation 50.............................
Wiring Diagram 53..................................
Troubleshooting 54..................................
PARTS REPLACEMENT INFORMATION GUIDE 57.......
Always Ask For
Use of the AHRI Certified TM Mark indicates a
manufacturer’s participation in the program. For
verification of certification for individual products,
go to www.ahridirectory.org.
NOTE: Read the entire instruction manual before starting the
installation.
Portions of the text and tables are reprinted from NFPA 54/ANSI
Z223.1--2012E, 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.