2
Table of Contents
Safety Information .....................................................................................................................3
Air for Proper Combustion ....................................................................................................3
Flammable
Vapors
...............................................................................................................3
Gas Supply and Piping ........................................................................................................3
Venting
System
....................................................................................................................4
Combustibles
.......................................................................................................................4
Flood
Damage
.....................................................................................................................4
Shutting Down the Furnace .................................................................................................4
Inspection .............................................................................................................................4
Filters
...................................................................................................................................4
Description of Furnace .............................................................................................................5
Furnaces
Components.........................................................................................................5
Venting System ....................................................................................................................5
Category IV Furnaces ....................................................................................................5
Combustion Air Requirements .................................................................................................5
Sources of Corrosion ...........................................................................................................5
Furnace in Small Room or Closet ........................................................................................5
Startup and Shutdown ..............................................................................................................6
Starting the Furnace ............................................................................................................6
Shutting Down the Furnace .................................................................................................6
Inspection ...................................................................................................................................6
Frequency
............................................................................................................................6
Venting
System
....................................................................................................................6
Blower and Filter .................................................................................................................6
Air for Combustion ...............................................................................................................6
Air for Comfort ......................................................................................................................6
Burner Operation ................................................................................................................7
New Construction ................................................................................................................7
Troubleshooting .........................................................................................................................7
Location of Furnace Components ...........................................................................................8
