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Navien NPN User Manual

Navien NPN
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5Safety Information
DANGER
This water heaters water temperature is set
to 120°F (49°C) at the factory for your safety
and comfort. Increasing the temperature
increases the risk of accidental scalding. Water
temperatures at or above 125°F (52°C) can
cause instant scalding, severe burns, or death.
Before you decide to change the temperature
setting, read the following charts carefully.
Water
Temperature
Time in which a young child
can suffer a full thickness
(3rd degree) burn
160°F (70°C) Less than 1 second
140°F (60°C) 1 second
130°F (55°C) 10 seconds
120°F (49°C) 10 minutes
100°F (37°C) very low scald risk
DANGER
HOT
BURN
To prevent burns:
Use the lowest operating temperature setting
necessary to provide comfortably-hot water.
If your household has children or elderly or
disabled residents, using a lower temperature
setting is recommended.
Do not leave children, the elderly, or disabled
persons unsupervised.
Do not allow small children to play
unsupervised in the bathroom.
Do not allow anyone to change the water
temperature while hot water is running.
Read all the instructions in this manual
carefully before changing the temperature
setting.
Feel the water before using it on children, the
elderly, or the disabled.
If it is necessary to set the water temperature
above 125°F (52°C), consider installing a
thermostatically-controlled mixing valve
or temperature-limiting valve. Contact a
licensed plumber or your local plumbing
authority for more information.

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Navien NPN Specifications

General IconGeneral
TypeTankless
Fuel TypeNatural Gas or Propane
EfficiencyUp to 0.96 UEF
Voltage120V
Temperature Range98°F - 140°F
Installation TypeIndoor/Outdoor
Max GPM11.2 GPM
Gas Connection3/4 inch NPT
Water Connection3/4 inch NPT
Vent Size2 inch or 3 inch PVC/CPVC
Warranty15 years heat exchanger, 5 years parts

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