Consult your local building inspector or section 5.3 in the latest edition
of National Fuel Gas Code ANSI Z223.1/NFPA 54 if you have any
questions about fresh air requirements for proper combustion and
ventilation of gas-fired appliances.
This heater is equipped with an ODS (oxygen depletion sensor) pilot
safety system that turns off the heater if insufficient fresh air is available.
Never attempt to adjust this safety system. It will not operate correctly
if tampered with. When used without adequate fresh air, the heater may
give off carbon monoxide, an odorless, poisonous gas.
If this heater shuts off during operation, do not relight it until you provide
additional fresh air. If permanent provisions for providing additional fresh
air have not been implemented, the additional fresh air may be provided
by opening a window an inch or two while the appliance is operating. If
the heater keeps shutting off during operation, have it serviced.
Warning: The ODS (Oxygen
Depletion Sensor) Pilot safety
system is not a substitute for
proper installation and use of this
appliance. Failure to observe
installation and use guidelines
in this manual can lead to carbon
monoxide poisoning, fire or
explosion.
C
OMBUSTION
AND
V
ENTILATION
A
IR
R
EQUIREMENTS
10
53D9013. Rev 1 03/03
