A.O. Smith Burkay HW-300, User Manual, Page: 2 / 28

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TABLE OF CONTENTS
TABLE OF CONTENTS .......................................................................... 2
SAFE INSTALLATION, USE AND SERVICE .......................................... 3
GENERAL SAFETY ................................................................................ 4
INTRODUCTION .................................................................................... 5
Abbreviations used ............................................................................ 5
Qualifications ..................................................................................... 5
CONTROL COMPONENTS ................................................................... 6
BOILER START UP AND OPERATIONS ............................................. 10
Filling the system ............................................................................. 10
Precautions ...................................................................................... 10
Pilot and main burner ...................................................................... 10
Checking and adjusting input .......................................................... 12
TROUBLESHOOTING ......................................................................... 16
MAINTENANCE PROCEDURES ......................................................... 24
Manual reset high limit switch continuity test ................................... 24
Pressure relief valve test ................................................................. 24
Cleaning and flushing instructions ................................................... 24
Venting maintenance ....................................................................... 25
NOTES ................................................................................................. 26
LIMITED WARRANTY .......................................................................... 27