TABLE OF CONTENTS
A. PRECAUTIONS .................................................................................................................................... 7
B. IMPROPER COMBUSTION ................................................................................................................. 8
C. GAS ...................................................................................................................................................... 8
E. WATER QUALITY ................................................................................................................................ 8
F. WINTERIZING ...................................................................................................................................... 9
PART 2 - BEFORE YOU START ................................................................................................................ 9
A. WHAT'S IN THE BOX ........................................................................................................................... 9
B. HOW THE HEATER OPERATES ........................................................................................................ 9
C. OPTIONAL EQUIPMENT ................................................................................................................... 11
B. LEVELING .......................................................................................................................................... 14
PART 5 - PREPARE THE HEATER .......................................................................................................... 17
PART 6 - HEATER PIPING ....................................................................................................................... 18
B. RELIEF VALVE ................................................................................................................................... 18
C. BACKFLOW PREVENTER ................................................................................................................ 19
E. CIRCULATOR PUMPS ....................................................................................................................... 19
I. ZONING WITH ZONE VALVES ........................................................................................................... 22
J. ZONING WITH CIRCULATORS ......................................................................................................... 22
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