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TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE.................................3
APPROVALS .................................................................................3
GENERAL SAFETY INFORMATION .............................................4
Precautions ................................................................................4
Grounding Instructions...............................................................4
Hydrogen Gas Flammable .........................................................4
INTRODUCTION ...........................................................................7
Abbreviations Used....................................................................7
Qualications .............................................................................7
Preparing For The Installation ...................................................7
FEATURES AND COMPONENTS ................................................8
Get To Know Your Water Heater - Gas Models .........................8
INSTALLATION CONSIDERATION ...............................................9
Rough In Dimensions ................................................................9
Locating The Water Heater ......................................................10
Insulation Blankets...................................................................11
Combustion Air and Ventilation ................................................ 11
Unconned Space ...................................................................11
Conned Space .......................................................................12
Fresh Air Openings For Conned Spaces ...............................12
Outdoor Air Through Two Openings ........................................12
Outdoor Air Through One Opening ..........................................12
Outdoor Air Through Two Horizontal Ducts .............................13
Air From Other Indoor Spaces .................................................13
Chemical Vapor Corrosion .......................................................14
Water Piping ............................................................................14
Power Supply...........................................................................14
INSTALLING THE NEW WATER HEATER .................................14
Mixing Valves ...........................................................................15
Dishwashing Machines ............................................................15
Space Heating and Potable Water System .............................15
Closed Water Systems ............................................................16
Thermal Expansion ..................................................................16
Temperature-Pressure Relief Valve .........................................17
Gas Piping ...............................................................................18
Supply Gas Regulator..............................................................18
Condensate Piping ..................................................................18
High Altitude Installations.........................................................19
Filling the Water Heater ...........................................................19
Venting .....................................................................................20
INSTALLATION REQUIREMENTS - COMMONWEALTH OF
MASSACHUSETTS .....................................................................22
Commonwealth of Massachusetts ...........................................22
Installation of Carbon Monoxide Detectors ..............................22
Approved Carbon Monoxide Detectors....................................22
Signage....................................................................................22
Exemptions ..............................................................................22
Manufacturer Requirements - Gas Equipment Venting System
Provided...................................................................................22
Manufacturer Requirements - Gas Equipment Venting System
Not Provided ............................................................................22
Termination Clearances Sidewall Power Vent .........................23
Termination Clearances Sidewall Direct Vent ..........................24
Installation Sequence ..............................................................25
DIRECT VENT DIAGRAM ...........................................................30
Vent Pipe Preparation ..............................................................31
Controls and Switches .............................................................33
Power Vent Wiring Schematic - Figure 34. ..............................34
TEMPERATURE REGULATION .................................................36
CONTROL SYSTEM OPERATION .............................................37
Overview ..................................................................................37
Control System Navigation ......................................................37
User Settings & Control System Menus ..................................40
FOR YOUR INFORMATION ........................................................45
Start Up Conditions..................................................................45
Operational Conditions ............................................................45
PERIODIC MAINTENANCE ........................................................46
Venting System Inspection ......................................................46
Anode Rod Inspection .............................................................46
Temperature-Pressure Relief Valve Operation ........................46
Draining and Flushing ..............................................................47
Service .....................................................................................47
MAINTENANCE ..........................................................................48
Temperature-Pressure Relief Valve Test .................................48
LEAKAGE CHECKPOINTS .........................................................49
TROUBLESHOOTING ................................................................50
Installation Checklist ................................................................50
Installation Checklist ................................................................50
Sequence Of Operation Flow Chart.........................................51
Operational Problems ..............................................................52
Fault and Alert Conditions........................................................52
NOTES ........................................................................................56
LIMITED RESIDENTIAL GAS WARRANTY ................................59