User Guide

2
TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION ................................................................................................................ 3
GAS SUPPLY & PIPING .................................................................................................................................... 3
FILTER ............................................................................................................................................................... 3
FLOOD DAMAGE ............................................................................................................................................... 3
IMPORTANT SAFETY INFORMATION ................................................................................................................ 4
VENTING SYSTEM ............................................................................................................................................ 4
SOURCES OF CORROSION ............................................................................................................................. 4
CLEARANCES TO COMBUSTIBLES ................................................................................................................ 4
ABOUT THE FURNACE ....................................................................................................................................... 5
INTRODUCTION ................................................................................................................................................ 5
CATEGORY I (NON-CONDENSING) FURNACES .........................................................................................5
CATEGORY IV (CONDENSING) FURNACES ................................................................................................5
FILTER ............................................................................................................................................................... 5
THERMOSTAT ................................................................................................................................................... 5
FURNACE LOCATION ....................................................................................................................................... 5
COMPONENT LOCATIONS FOR SINGLE STAGE FURNACES ...................................................................... 6
COMPONENT LOCATIONS FOR TWO-STAGE FURNACES .......................................................................... 7
STARTUP & SHUTDOWN .................................................................................................................................... 7
STARTING THE FURNACE ............................................................................................................................... 7
SHUTTING DOWN THE FURNACE .................................................................................................................. 7
MAINTENANCE & INSPECTION ......................................................................................................................... 8
FURNACE & AIR DUCTS .................................................................................................................................. 8
VENTING SYSTEM ............................................................................................................................................ 8
BLOWER & FILTER ........................................................................................................................................... 8
BURNER OPERATION ...................................................................................................................................... 8
NEW CONSTRUCTION ..................................................................................................................................... 8
TROUBLESHOOTING .......................................................................................................................................... 8