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American Water Heater
318935-003 installation instructions
Models:
318935-003
1
34
36
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Troubleshooting
Install
Repair Parts Illustration
Replacement Parts
Maintenance
Problem
Replacing the Pilot/Thermopile Assembly
Water Temperature Adjustment
External Inspection & Cleaning of the Flame-trap
Temperature and Pressure Relief Valve
Page 34
Image 34
NOTES
34
Page 33
Page 35
Page 34
Image 34
Page 33
Page 35
Contents
Installation Instructions and Use & Care Guide
WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance
If you cannot reach your gas supplier, call the fire department
Ultra Low Nox Gas Water Heater with the Flame Guard Safety System
PAGE
WATER HEATER SAFETY
Your safety and the safety of others are very important
Table Of Contents
Use two or more people to move and install water heater
INSTALLING YOUR GAS WATER HEATER
Excessive Weight Hazard
Important Information About This Water Heater
Site Location
Carbon Monoxide Poisoning Hazard Do not install in a mobile home
Location Requirements
FIRE AND EXPLOSION HAZARD Can result in serious injury or death
Clearances and Accessibility
State of California
Gas Supply
Use a new CSA approved gas supply line. Install a shut-off valve
Gas Pressure Testing
Gas Requirements
Carbon Monoxide Hazard Water heater must be vented to outdoors
authorized gas company personnel, and authorized service persons
Combustion Air Supply and Ventilation
Examples of a qualified person include gas technicians
Confined Space
Unconfined Space
All Air from Inside the Building
Minimum Free Area
All Air from Outdoors
Louvers and Grilles
Reference
Vent Pipe System
Draft Hood Installation
Vent Connectors
Vent Pipe Size
Chimney Connection
Vertical Exhaust Gas Vent
Piping Installation
Water System Piping
Explosion Hazard
Closed System/Thermal Expansion
Do not plug valve. Do not remove valve
The Temperature & Pressure Relief Valve
Temperature and Pressure Relief Valve
T&P Relief Valve and Pipe Insulation Some Models
Explosion Hazard
Special Applications
Solar Installation
Combination Space Heating/Potable Water System
Combustion Air Supply and Ventilation
Installation Checklist
Water Heater Location
Vent Pipe System
Lighting Instructions
OPERATING YOUR WATER HEATER
Explosion Hazard
LIGHTING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
TO TURN OFF GAS TO APPLIANCE
Burner Flames
Water Temperature Stacking
Checking the Draft
Emergency Shut Down
Water Temperature Regulation
Children, disabled and elderly are at highest risk of being scalded
Operating Modes and Settings
Operating the Temperature Control System
Water Temperature Adjustment
Safety Shut-off
Anode Rod/Water Odor
Draining and Flushing
MAINTENANCE OF YOUR WATER HEATER
Routine Preventative Maintenance
Temperature and Pressure Relief Valve
Removing the Burner Door Assembly
Replacement Parts
Natural Gas Burner Ultra Low Nox
Replacing the Pilot/Thermopile Assembly
Replacing the Pilot/Thermopile Assembly 50K Models
Replacing the Burner Door Assembly
External Inspection & Cleaning of the Flame-trap
Cleaning the Combustion Chamber and Flame-trap
Explosion Hazard Tighten both burner door screws securely
Testing the Igniter System
Piezoelectric Igniter System
Flame Guard Safety System Operational Checklist
TROUBLESHOOTING CHART
Removing and Replacing the Gas Control Valve/Thermostat
POSSIBLE CAUSES
PROBLEM
Clean flue and burner-locate source and correct
CORRECTIVE ACTION
Combustion chamber temperature
STATUS LIGHT CODE TROUBLESHOOTING CHART
in this manual. If the problem persists, proceed
Service
PILOT LIGHT TROUBLESHOOTING CHART
Section A Pilot light will not light new installation
Section C Pilot light will not remain lit
REPAIR PARTS ILLUSTRATION
Repair Parts List
Listed Parts Kits and Illustrations
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