Navien NR-180A, Operation & Installation Manual

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SAFETY
Safety Instructions:
4
This product must be installed and serviced by a licensed plumber, a
licensed gas fitter, or a professional service technician. Improper
installation and/or operation or installation by an unqualified person
will void the warranty.
WARNING
WARNING
Safety Precautions
Read and understand this safety information before installing,
operating or servicing this Navien Water Heater.
This manual must remain with the Navien Water Heater.
Have your installer show you the location of the gas shut-
off valve and show you how to close the valve. Close the
manual shut-off valve if the Navien Water Heater ever
becomes subjected to overheating, fire, flood, physical
damage or any other such damaging condition. And, DO
NOT operate the Water Heater again until it has been
checked by qualified personnel.
DO NOT turn on the water heater unless water and gas supplies are fully
opened.
DO NOT turn on the water heater if cold water supply shut-off valve is closed.
DO NOT use this Navien Water Heater for other than its intended purpose as
described in this manual.
DO NOT attempt to repair or replace any part of your water heater unless it is
specifically recommended in this manual. All other servicing should be referred
to an authorized technician or professional service technician.
Make certain power to water heater is “OFF” before removing the front cover for
any reason.
Label all wires prior to disconnection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper operaton after servicing.
Improper adjustment, alteration, service or maintenance can cause property
damage, personal injury, or death.
To prevent scalding, always check the temperature of the hot water before
showering, bathing, etc.
DO NOT attempt to change the water temperature while someone is using the
water heater.
DO NOT use parts other than those specified for this equipment.
DO NOT operate the water heater if you feel something is wrong with the unit.
DO NOT allow children to operate or otherwise handle the unit.