Navien NHB-055 Installation & Operation Manual page 5

WARNING
Do not store or use gasoline or other flammable liquids
near this boiler.
Doing so may result in fire or explosion.
Do not place combustibles, such as newspapers or
laundry, near the boiler or venting system.
Doing so may result in a fire.
Do not place or use hair sprays, spray paints, or any other
compressed gases near the boiler or venting system,
including the vent termination.
Doing so may result in fire or explosion.
Do not operate the boiler with the front cover opened.
Doing so may result in fire or carbon monoxide (CO)
poisoning, which may result in property damage, personal
injury, or death.
Do not operate this boiler without proper venting.
Doing so may result in fire or carbon monoxide (CO)
poisoning, which may result in property damage, personal
injury, or death.
Do not touch the power cord or internal components of
the boiler with wet hands.
Doing so may result in electric shock.
CAUTION
Do not turn on the boiler unless the water and gas
supplies are fully opened.
Doing so may damage the boiler.
Do not use this boiler for anything other than its
intended purpose, as described in this manual.
Do not remove the front cover unless the power to the
boiler is turned off or disconnected.
Failure to do so may result in electric shock.
When servicing the controls, label all wires prior to
disconnecting them.
Failure to do so may result in wiring errors, which can lead to
improper or dangerous operation. Verify proper operation
after servicing.
Do not use unapproved replacement or accessory parts.
Doing so may result in improper or dangerous operation
and will void the manufacturer's warranty.
Do not place anything in or around the vent terminals,
such as a clothes line, that could obstruct the air flow in
or out of the boiler.
This boiler has been approved for use in the USA and
Canada only.
Using the boiler in any other country will void the
manufacturer's warranty.
Safety Information 5