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A. OPERATION AND INSTALLATION WARNINGS
To avoid serious injury or death read, understand, and follow all the precautions listed here.
DANGER
Improper venting can cause a build-up of carbon monoxide. Breathing carbon monoxide can result in brain
damage or death. DO NOT operate the water heater unless it is properly vented to the outside and has an
adequate fresh air supply for safe operation. Inspect the exterior exhaust gas outlet port and fresh air inlet
port on a regular basis to ensure they are functioning properly.
A concentration of carbon monoxide as small as .04% (400 parts per million) in the air can be fatal. When
making high fire or low fire adjustments, CO levels must be monitored using a flue gas analyzer such that a
CO level of no more than 150 ppm is exceeded at any time during operation.
Adjusting the "low fire offset" or the "main flow restrictor" in small increments can result in a significant
increase in CO concentration. To avoid serious injury or death, DO NOT make any adjustments to the gas
valve without monitoring the exhaust gases with a fully functional and calibrated flue gas analyzer.
WARNING
American Standard Water Heaters cannot anticipate every circumstance that might involve a potential haz-
ard. Each installation has its own specialized characteristics, requirements, and possible hazards. Therefore, all
possible incidents are not included in these warnings. Proper and safe installation, operation, and service are
the responsibility of the professional service technician.
Proper care of the water heater is the user's responsibility. Ensure the user carefully reads and understands
the User's Information Manual before operating and maintaining the water heater.
Make sure the user knows the location of the gas shut-off valve and how to operate it. Immediately close the
gas shut-off valve if the water heater is subjected to fire, overheating, flood, physical damaged, or any other
damaging condition that might affect the operation of the unit. Have the water heater checked by a qualified
technician before resuming operation.
Do not power up the unit unless the gas and water supply valves are fully opened. Make sure the fresh air
intake port and exhaust gas port are open and functional.
No one but a professional service technician should attempt to install, service, or repair this water heater.
There are no serviceable parts which can be changed by the user / owner. User / Owner: Contact the origi-
nal professional service technician if the water heater needs repair or maintenance. If the original technician
is unavailable, ask your gas supplier for a list of qualified service providers.
Keep the area around the water heater clean and free of all materials that can burn. DO NOT store or place
gasoline, oils, spray paint, or other flammable products near the water heater.
PART 2
Safety Regulations
Vapors from flammable liquids will explode and can cause a fire, resulting in
personal injury or death. The water heater has a burner that can come on at
any time and ignite vapors. DO NOT use or store flammable liquids around the
water heater.
A licensed plumber, licensed gas fitter, and/or professional service technician
must install this water heater. Improper installation and/or operation can cause
a potentially hazardous situation, which, if not avoided, could result in serious
injury or death, and will void the warranty.
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