A.O. Smith GDV, Instruction Manual

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Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater.
Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn
you and others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It
is very important that the meaning of each safety message is understood by you and others who install, use or service this
water heater.
DANGER indicates an imminently hazardous situ-
ation which, if not avoided, will result in injury or
death.
CAUTION Indicates a potentially hazardous situa-
tion which, if not avoided, could result in minor or
moderate injury.
CAUTION used without the safety alert symbol
indicates a potentially hazardous situation which, if
not avoided, could result in property damage.
WARNING Indicates a potentially hazardous situ-
ation which, if not avoided, could result in injury
or death.
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
CAUTION
CAUTION
WARNING
DANGER
All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message
and how to avoid the risk of injury.
The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a
list of substances known to the State of California to cause cancer, birth defects, or other reproductive harm,
and requires businesses to warn of potential exposure to such substances.
WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects, or
other reproductive harm. This water heater can cause low-level exposure to some of the substances included in
the Act.
Massachusetts Code requires this water heater to be installed In accordance with Massachusetts 248-CMR 2.00:
State Plumbing Code and 248-CMR 5.00. This product is certifi ed to comply with a maximum weighted average
of 0.25% lead content as required in some areas.
IMPORTANT DEFINITIONS
• Qualifi ed Installer: A qualifi ed installer must have ability equivalent to a licensed tradesman in the fi elds of plumbing,
air supply, venting and gas supply, including a thorough understanding of the requirements of the National Fuel Gas
Code as it relates to the installation of gas fi red water heaters. The qualifi ed installer must also be familiar with the
design features and use of fl ammable vapor ignition resistant water heaters, and have a thorough understanding of
this instruction manual.
• Service Agency: A service agency also must have ability equivalent to a licensed tradesman in the fi elds of plumbing, air supply,
venting and gas supply, including a thorough understanding of the requirements of the National Fuel Gas Code as it relates to the
installation of gas fi red water heaters. The service agency must also have a thorough understanding of this instruction manual, and
be able to perform repairs strictly in accordance with the service guidelines provided by the manufacturer.
• Gas Supplier: The Natural Gas or Propane Utility or service who supplies gas for utilization by the gas burning
appliances within this application. The gas supplier typically has responsibility for the inspection and code approval of
gas piping up to and including the Natural Gas meter or Propane storage tank of a building. Many gas suppliers also
offer service and inspection of appliances within the building.
SAFE INSTALLATION, USE AND SERVICE