Navien NFB-175H User's Information Manual page 5

CAUTION
Do not attempt to repair or replace any
●
part of the boiler, unless it is specifically
recommended in this manual.
For all other service, contact an authorized
technician or licensed professional. Improper
adjustments, alterations,
maintenance may lead to property damage,
personal injury, or death and will void your
warranty.
Do not operate the boiler if you feel
●
something is wrong with it.
Doing so may result in product damage or
personal injury.
Do not allow children to operate or access
●
the boiler.
Doing so may result in product damage or
personal injury.
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.
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.
Should overheating occur or the gas supply
●
fail to shut off, turn off the manual gas
valve to the appliance.
service, or
Safety Information 5