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2. Safety
2.
Safety
WARNING
• If the information in these instructions is
not followed exactly, a fire or explosion
may result causing property damage, per-
sonal injury, or death.
• Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
• WHAT TO DO IF YOU SMELL GAS:
– Do not try to light any appliance.
– Do not touch any electrical switch; do
not use any phone in your building.
– Immediately call your gas supplier from
a neighbor's phone. Follow the gas
supplier's instructions.
– If you cannot reach your gas supplier,
call the fire department.
• Installation and service must be
performed by a trained and qualified
professional, service agency or the gas
supplier.
• The warning signs in this manual are here
to prevent injury to you and others. Please
follow them explicitly.
2. 1 Safety Symbols
Safety alert symbol alerts you to
potential hazards that can kill or hurt you
and others.
DANGER
Indicates an imminently
hazardous situation which,
if not avoided, will result in
personal injury or death.
WARNING
Indicates a potentially
hazardous situation which,
if not avoided, will result in
personal injury or death.
6
The following precautions apply to the trained and
qualified professional and consumer. Read and
follow all instructions in this section.
The design is such that adjustment is not required.
Warranty may be voided if the internal gas valve is
adjusted.
Rinnai Tankless Water Heater Installation and Operation Manual
CAUTION
Indicates a potentially
hazardous situation which, if
not avoided, could result in
minor or moderate injury. It may
also be used to alert against
unsafe practices.
2.2 Safety Precautions
WARNING
• Before operating, smell all around the
appliance area for gas. Be sure to smell next
to the floor because some gas is heavier
than air and will settle on the floor.
• Keep the area around the appliance clear
and free from combustible materials, gaso-
line, and other flammable vapors and liquids.
• Combustible construction refers to
adjacent walls and ceiling and should not be
confused with combustible or
flammable products and materials.
Combustible and/or flammable products
and materials should never be stored in the
vicinity of this or any gas appliance.
• Always check the water temperature
before entering a shower or bath.
• To protect yourself from harm, before
performing maintenance:
– Turn off the electrical power supply by un-
plugging the power cord or by turning off
the electricity at the circuit breaker. (The
temperature controller does not control
the electrical power.)
– Turn off the gas at the manual gas
control valve, usually located
DO NOT adjust the
internal gas valve.
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