introduction ................................................................................................................................................3
important safety warnings ................................................................................................................4-9
RISK OF EXPLOSION OR FIRE .....................................................................................................4
RISK OF ASPHYXIATION ...............................................................................................................5
RISK OF BURNS .............................................................................................................................8
RISK OF BURSTING .......................................................................................................................8
RISK FROM MOVING PARTS ........................................................................................................8
RISK OF BODILY INJURY ..............................................................................................................9
installation ...........................................................................................................................................10-15
LOCATION AND PLACEMENT .....................................................................................................0
ELECTRICAL .................................................................................................................................0
GAS PIPING ..................................................................................................................................
WATER SUPPLY ...........................................................................................................................3
HIGH PRESSURE CONNECTION ................................................................................................3
PRE-OPERATION CHECKLIST ....................................................................................................5
preparation ................................................................................................................................................16
ATTIRE ..........................................................................................................................................6
PRE-START ...................................................................................................................................6
PRE-START SAFETY INSPECTION .............................................................................................6
operating instructions .........................................................................................................................18
FLUSHING THE SYSTEM ............................................................................................................8
HOT WATER OPERATION ............................................................................................................8
SHUTDOWN .................................................................................................................................8
maintenance ..........................................................................................................................................19-20
PREVENTIVE MAINTENANCE ....................................................................................................9
WINTERIZING ..........................................................................................................................9-20
maintenance cHarts ...............................................................................................................................20
troublesHooting .....................................................................................................................................21
statement of warranty .........................................................................................................................22
notes ..............................................................................................................................................................23
national codes:
ansi Z223.1 (nfpa no. 54) national fuel gas code.
nfpa no. 70 (nec) national electrical code.
csa b149.1 gas installation code.
csa c22.1 canadian electrical code part 1.
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table of contents
HGM-SERIES Hot Water Heater module Operator's Manual