Navien CH-180 Service Manual page 14

COMPROMISED VENTING SYSTEM
Failure to follow the Venting Section of the installation manual may result in the
un-safe operation of this boiler. To avoid the risk of fire, explosion of asphyxiation
from carbon monoxide, never operate the boiler 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 boiler.
Immediately turn off and do not use the boiler if any of the vent pipes, vent
elbows and/or the boiler.
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
burns instantly or death from scalds.
Households with small children, disabled, or elderly
persons may require 120
setting to prevent contact with "HOT" water.
To prevent scalding, check water temperature after servicing.
If the proposed boiler 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.
©Navien America Inc. 2010
DANGER
DANGER
can cause severe
(49 ) or lower temperature
12
CH series service Manual Version 1.0