L.B. White Guardian AD/AW060 Manuel Du Propriétaire page 9

regulators inside the buildings must be properly
vented to the outside. Local, state and national
codes always apply to regulator installation.
7. All gas pressure regulators must be installed in
strict accordance with the manufacturer's safety
instructions. These instructions accompany each
regulator.
8. Ensure that all accessories that ship with the
heater have been installed. This pertains to air
diverters, hose, regulators, etc.
9. Make certain that a sediment trap is installed at
the gas inlet to prevent foreign materials (pipe
compound, pipe chips and scale) from entering
the gas valve. Debris blown into the gas valave
may cause that valve to malfunction resulting in
a serious gas leak that could result in a possible
fi re or explosion causing loss of products, build-
ing or even life. A properly installed sediment
trap will keep foreign materials from entering the
gas valve and protect the safe functioning of that
important safety component.
10. Any heater connected to a piping system must
have an accessible, approved manual shut
off valve installed within six feet (6 ft.) of the
heater.
11. Check all connections for gas leaks. Gas leak
testing is performed as follows:
-- Check all pipe connections, hose connections,
fi ttings and adapters upstream of the gas control
with approved gas leak detectors.
WARNING
Fire and Explosion Hazard
■ Do not use open fl ame (matches, torches,
candles, etc.) in checking for gas leaks.
■ Use only approved leak detectors.
■ Failure to follow this warning can lead to fi res
or explosions.
■ Fires or explosions can lead to property dam-
age, personal injury or loss of life.
-- In the event a gas leak is detected, check the
components involved for cleanliness and proper
application of pipe compound before further
tightening.
Guardian LP or Natural Gas Heater
-- Further tighten the gas connections as necessary
to stop the leak.
-- After all connections are checked and any leaks
are stopped, turn on the main burner.
-- Stand clear while the main burner ignites to
prevent injury caused from hidden leaks that could
cause fl ashback.
-- With the main burner in operation, check all
connections, hose connections, fi ttings and joints
as well as the gas control valve inlet and outlet
connections with approved gas leak detectors.
-- If a leak is detected, check the components
involved for cleanliness in the thread areas and
proper application of pipe compound before
further tightening.
-- Tighten the gas connection as necessary to stop
the leak.
-- If necessary, replace the parts or components
involved if the leak cannot be stopped.
-- Ensure all gas leaks have been identifi ed and
repaired before proceeding.
12. A qualifi ed service agency must check for proper
operating gas pressure upon installation of the
heater.
13. Light according to instructions on heater or
within owner's manual.
14. It is extremely important to use the proper size
and type of gas supply line to assure proper
functioning of the heater. Contact your fuel gas
supplier for proper line sizing and installation.
15. This heater can be confi gured for use with either
L.P. gas vapor withdrawal or natural gas. Consult
the dataplate, located on interior of the burner
end or motor end door, for the gas confi guration
of the specifi c heater. Do not use the heater in
an L.P. gas liquid withdrawal system or applica-
tion. If you are in doubt, contact the L.B. White
Co., Inc.
16. Eventually, like all electrical/mechanical devices,
the thermostat can fail. Thermostat failure may
result in either an underheating or overheating
Owner's Manual • Guardian
9