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SAFE INSTALLATION, USE AND SERvICE.................................3
APPROvALS .................................................................................3
GENERAL SAFETY INFORMATION .............................................4
Grounding Instructions...............................................................4
Hydrogen Gas Flammable .........................................................4
INTRODUCTION ...........................................................................7
Abbreviations Used....................................................................7
Qualifications .............................................................................7
iCOMM™ & BACnet Compatible ...............................................7
Preparing For The Installation ...................................................7
FEATURES AND COMPONENTS ................................................8
INSTALLATION CONSIDERATION ...............................................9
Rough In Dimensions ................................................................9
Locating the Water Heater .......................................................10
Insulation Blankets...................................................................11
Combustion Air and Ventilation ................................................11
Unconfined Space ...................................................................11
Confined Space .......................................................................12
Fresh Air Openings For Confined 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
Gas Supply Systems ...............................................................18
Gas Pressure Requirements ...................................................18
Supply Gas Regulator..............................................................18
Condensate Piping ..................................................................19
Filling the Water Heater ...........................................................20
venting .....................................................................................20
INSTALLATION REqUIREMENTS - COMMONWEALTH OF
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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
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 35. ..............................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 ..............................................................46
Service .....................................................................................47
MAINTENANCE ..........................................................................48
Temperature-Pressure Relief Valve Test .................................48
LEAkAGE CHECkPOINTS .........................................................49
TROUBLESHOOTING ................................................................50
Installation Checklist ................................................................50
Sequence Of Operation Flow Chart.........................................51
Operational Problems ..............................................................52
Fault and Alert Conditions........................................................52
NOTES ........................................................................................56
LIMITED WARRANTY .................................................................59
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