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GENERAL
1. Follow all local codes, or in the absence of local codes, follow the current edition of the National Fuel Gas
Code: ANSI Z223.1/NFPA 54 in the USA or B149.1 Natural Gas, Propane Installation Code in Canada.
2. Properly ground the unit in accordance with all local codes or in the absence of local codes, with the National
Electrical Codes: ANSI/NFPA 70 in the USA or CSA standard C22.1 Canadian Electrical Code Part 1 in Canada.
3. Carefully plan where you intend to install the water heater. Please ensure:
• Your water heater will have enough combustion air and proper ventilation.
• Locate your heater where water leakage will not damage surrounding areas. (Please refer to page 8.)
4. Check the rating plate for the correct GAS TYPE, GAS PRESSURE, WATER PRESSURE and ELECTRIC RATING.
• If this unit does not match your requirements, do not install and consult with the manufacturer.
5. If any problem should occur, turn off all hot water taps and turn off the gas. Then call a trained
technician, the gas company, or the manufacturer.
Safety Guidelines
Installation Manual
SAFETY GUIDELINES
SAFETY DEFINITION
WARNING
Indicates an imminently hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION
Indicates an imminently hazardous situation which, if not avoided, could result in
minor or moderate injury.
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
DANGER
Indicates information considered important but not hazard related.
NOTICE
WARNING
• Water temperatures over 125 °F (52 °C) can cause severe burns instantly or death from
scalding. The water temperature is set at 120 °F (50 °C) from the factory to minimize any
scalding risk. Before bathing or showering always check the water temperature.
• To reduce the risk of scalding, install Thermostatic Mixing Valves (temperature limiting valves)
at each point of use.
• Do not store or use gasoline or other flammables, vapors, or liquids in the vicinity of this
appliance.
• Do not reverse the water and/or gas connections as this will damage the gas valves and can
cause severe injury or death. Follow the diagram on page 32 when installing your water
heater.
• Should overheating occur or the gas supply fails to shut off, turn off the manual gas control
valve to the appliance.
• Do not use this appliance if any part has been in contact with or been immersed in water.
Immediately call a qualified installer or service agency to replace a flooded water heater. Do
not attempt to repair the unit. It must be replaced.
• Do not disconnect the electrical supply if the ambient temperature will drop below freezing
unless the water has been drained from the water heater. The Freeze Protection System only
works if the unit has electrical power. The warranty will not be covered if the heat exchanger
is damaged due to freezing. Refer to the section on the Freeze Protection System on page 53
and Unit draining & power outage (Freeze protection) on page 55 for more information.
• Failure to observe these warnings could result in severe personal injury or death.
Summary of Contents for 140H
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