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TABLE OF CONTENTS
I) INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
User Responsibilities 4
II) SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
For Installations in Canada 4
For Installations in the United States 4
Safety Warning (Flammable Vapours) 5
Safety Warning (Scalding) 5
Safety Warning (Carbon Monoxide) 5
Relief Valves (T&P) 5
Backflow Prevention 5
III) INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unpacking the Water Heater 6
Location Requirements 6
In Earthquake Zones
Clearances and Accessibility 6
Gas Supply 7
Gas Pressure
Gas line purging
Gas Leak Testing
Air Requirements 9
Confined Space Air Requirements for Canadian
Installations 9
Confined Space Air Requirements for U.S.
Installations 10
Exhaust Venting 11
Vent Pipe System
Drafthood Installation
Water Supply 11
Piping Installation
Closed System/Thermal Expansion
Temperature and Pressure (T&P) Relief Valve 12
The Temperature And Pressure Relief Valve:
The Discharge Line:
Installations Check 13
IV) OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . 14
Water Temperature Regulation 14
Temperature Adjustment
Lighting Instructions (Robertshaw 110R) 15
Lighting Instructions (Robertshaw 220R) 16
Lighting Instructions (White-Rodgers 37C) 17
V) OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Burner Flames 18
Emergency Shut Down 18
Checking the Draft 18
Operating Conditions 18
Condensation
Water Heater Sounds
Safety Shut-off
Anode/Water Odour
VI) MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Draining and Flushing 19
Periodic Inspection 19
External Cleaning of the Flame-arrester 20
Resetting and Replacing the Safety (TCO) Switch20
Temperature and Pressure Relief Valve 20
VII) COMBO HEATING . . . . . . . . . . . . . . . . . . . . . . . . 21
System Requirements 21
VIII) TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . 22
IX) REPAIR PARTS ILLUSTRATION . . . . . . . . . . . . . 24
LIMITED WARRANTY. . . . . . . . . . . . . . . . . . . . . . 25
RETAIN THESE INSTRUCTIONS IN A SAFE LOCATION FOR FUTURE REFERENCE