John Wood Atmospheric Gas (Standard) - Manual (Page 3)

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Flammable Vapors FLAMMABLES
FIRE AND EXPLOSION HAZARD
Can result in serious injury or death
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of this
or any other appliance. Storage of or use of
gasoline or other flammable vapors or liquids in the
vicinity of this or any other appliance can result in
serious injury or death.
Read and follow water heater warnings and instructions.
WARNING
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.
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.
DANGER indicates an imminently hazardous situation which, if not avoided, will result in
death or injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in
death or injury.
CAUTION indicates a potentially hazardous situation 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.
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.
CAUTION: Hydrogen gas can be produced in a hot water system served by this heater that has not been used for a long period of time (generally
two (2) weeks or more). Hydrogen gas is extremely fl ammable and can ignite when exposed to a spark or fl ame. To reduce the risk of injury
under these conditions, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical
appliance connected to the hot water system. Use caution in opening faucets. If hydrogen is present, there will probably be an unusual sound such
as air escaping through the pipe as the water begins to fl ow. There should be no smoking or open fl ame near the faucet at the time it is open.
IMPORTANT DEFINITIONS
• Qualified Technician: A qualified technician must be licensed/authorized to install gas water heaters and to work with natural/L.P. gas,
gas/air venting, and gas components. He or she must also have appropriate trade knowledge and a thorough understanding of the
requirements of the Natural Gas and Propane Installation Code (CSA B149.1-current edition) as it relates to the installation of gas fired
water heaters. The qualified technician must also be familiar with the design features and use of flammable vapor ignition resistant water
heaters, and have a thorough understanding of this instruction manual.
• Service Agency: Employees/representatives of a service agency must also be licensed/authorized to install gas water heaters and to
work with natural/L.P. gas, gas/air venting, and gas components. Its employees and representatives must also have appropriate trade
knowledge and a thorough understanding of the requirements of the Natural Gas and Propane Installation Code (CSA B149.1-current
edition) as it relates to the installation of gas fired water heaters. The service agency employees/representatives 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
SAFETY PRECAUTIONS