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TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE ...................................................................................................................... 2
SAFETY PRECAUTIONS .............................................................................................................................. 3
TABLE OF CONTENTS ................................................................................................................................. 4
CUSTOMER RESPONSIBILITIES ......................................................................................................................................... 5
PRODUCT SPECIFICATIONS ................................................................................................................................................ 5
MATERIALS AND BASIC TOOLS NEEDED ....................................................................................................................... 6
Materials Needed .....................................................................................................................................................6
Basic Tools................................................................................................................................................................6
TYPICAL INSTALLATION.......................................................................................................................................................... 7
INSTALLATION INSTRUCTIONS ...................................................................................................................................... 8-17
Removing the Old Water Heater ...............................................................................................................................8
Facts to Consider About the Location ..................................................................................................................9-10
Insulation Blankets .................................................................................................................................................10
Combustion Air and Ventilation Appliances in Unconfi ned Spaces ........................................................................11
Combustion Air and Ventilation Appliancesin Confi ned Spaces ........................................................................11-12
Water Piping ......................................................................................................................................................12-13
T & P Valve and Pipe Insulation ........................................................................................................................13-14
Temperature Pressure Relief Valve ...................................................................................................................13-14
Filling the Water Heater ..........................................................................................................................................15
Venting ...............................................................................................................................................................15-16
Gas Piping .........................................................................................................................................................16-17
Sediment Trap ........................................................................................................................................................17
OPERATING INSTRUCTIONS ......................................................................................................................................... 18-19
Lighting & Operating Label .....................................................................................................................................18
Temperature Regulation .........................................................................................................................................19
SERVICE AND ADJUSTMENT ........................................................................................................................................ 20-22
Tank (Sediment) Cleaning ......................................................................................................................................20
Venting System Inspection .....................................................................................................................................20
Burner Inspection ...................................................................................................................................................20
Removing the Burner Door Assembly ....................................................................................................................21
Ultra Low NOx Natural Gas Burner ........................................................................................................................21
Replacing the Pilot Assembly .................................................................................................................................21
Replacing the Thermocouple ..................................................................................................................................22
External Inspection & Cleaning of the Flame Arrestor ............................................................................................22
Cleaning the Combustion Chamber and Flame Arrestor ........................................................................................22
Replacing the Burner Door Assembly .....................................................................................................................23
Piezoelectric Igniter System ...................................................................................................................................23
Testing the Igniter System ......................................................................................................................................23
Removing and Replacing the Gas Control Valve/Thermostat ................................................................................24
Housekeeping .........................................................................................................................................................24
Anode Rod Inspection ............................................................................................................................................24
Temperature-Pressure Relief Valve Operation .......................................................................................................25
Draining ..................................................................................................................................................................25
Drain Valve Washer Replacement ..........................................................................................................................25
Service ....................................................................................................................................................................25
TROUBLESHOOTING GUIDE ........................................................................................................................................ 26-30
Start Up Conditions ...........................................................................................................................................26-27
Thermal Expansion ...........................................................................................................................................26
Strange Sounds ................................................................................................................................................26
Draft Hood Operation ........................................................................................................................................26
Condensation ....................................................................................................................................................27
Smoke/Odor ......................................................................................................................................................27
Operational Conditions ...........................................................................................................................................27
Smelly Odor ......................................................................................................................................................27
Air in Hot Water Faucets ...................................................................................................................................27
High Temperature Shut-Off System ..................................................................................................................27
Troubleshooting Items .......................................................................................................................................28-30
PARTS ORDER LIST ................................................................................................................................................................31
WARRANTY.................................................................................................................................................................................32