Navien NPN Installation & Operation Manual page 2

Installation & Operation Manual
NPN Non-Condensing Water Heaters
Model
NPN-160U
NPN-180U
NPN-199U
NPN-120E
NPN-160E
NPN-180E
NPN-199E
WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result,
causing property damage, personal injury or death.
Do not store or use gasoline or other flammable 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.
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Installation and service must be performed by a qualified installer, service agency or the gas supplier.
The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas
Code, ANSI Z223.1/NFPA 54.
When applicable, the installation must conform with the Manufactured Home Construction and
Safety Standard, Title 24 CFR, Part 3280.
Do not install this water heater in a recreational vehicle, trailer, boat or other vehicular type unit as it
will result in a Carbon Monoxide Poisoning Hazard.
Keep this manual near this water heater for future
reference whenever maintenance or service is required.
* The wetted surface of this product contacted by consumable
water contains less than one quarter of one percent (0.25%)
* Lead Free
of lead by weight.