Navien NP-180 Service Manual page 15

COMPROMISED VENTING SYSTEM
• Failure to follow the Venting Section of the installation manual may result in the
unsafe operation of this water heater. To avoid the risk of fire, explosion of
asphyxiation from carbon monoxide, never operate the water heater unless it is
properly vented to outside and has an adequate air supply for proper operation.
• Be sure to inspect the vent terminator and the air intake pipe annually to ensure
safe operation of the water heater.
Immediately turn off and do not use the water heater if any of the vent pipes, vent
•
elbows and/or the water heater.
i. damaged in any way,
ii. have separated at a joint,
iii. are cracked or show evidence of corrosion, rusting or melting.
HOT WATER TEMPERATURE SETTING
Water temperature over 125
•
instantly or death from scalds.
• Households with small children, disabled, or elderly
persons may require 120
prevent contact with "HOT" water.
• To prevent scalding, check water temperature after servicing.
If the proposed water heater outlet temperature is above 125 , a thermostatically
•
controlled mixing valve or temperature limiting valve should be considered to
reduce the risk of scalding. Contact a licensed plumber or the local plumbing
authority for further information.
• This Navien Water Heater is factory se at 120
and comfort. Increasing the set temperature increases the risk of accidental
scalding. Consult the chart below before you decide to adjust the set temperature.
©Navien America Inc. 2010
DANGER
DANGER
can cause severe burns
or lower temperature setting to
(NP Series: 140 ) for your safety
13
NR/NP series service Manual Version 2.0