L.B. White Tradesman 400 Dual Fuel Owner's Manual And Instructions page 9

9. For safety, this heater is equipped with an auto
reset backfl ash switch, and depending on models,
an air proving switch. Never operate the heater
with any safety device that has been bypassed.
Do not operate this heater unless these features
are fully functioning.
10. Do not block air intakes or discharge outlets
of the heater. Doing so may cause improper
combustion or damage to heater components
leading to property damage.
11. The hose assembly shall be visually inspected
on a daily basis after heater relocation and
when the heater is in use. If it is evident there
is excessive abrasion or wear, or if the hose is
cut, it must be replaced prior to the heater being
put into operation. The hose assembly shall be
protected from building materials, and contact
with hot surfaces during use. The replacement
hose assembly shall be that specifi ed by the
manufacturer. See parts list.
12. Check for gas leaks and proper function upon
heater installation, when relocating, and after
servicing. Refer to leak check instructions within
installation section of this manual.
13. This heater should be inspected for proper
operation by a qualifi ed service person before
each use and at least annually.
14. Always turn off the gas supply to the heater if the
heater is not going to be used.
15. This heater is equipped with a three-prong
(grounding) plug for your protection against
shock hazard and must be plugged directly into
a properly grounded three-prong receptacle.
Failure to use a properly grounded receptacle
can result in electrical shock, personal injury,
or death.
Tradesman Construction Heaters
16. If gas fl ow is interrupted and fl ame goes out, do
not relight the heater until you are that all gas that
may have accummulated has cleared away. In
any event, do not relight the heater for at least 5
minutes.
17. When the heater is to be stored indoors, the
connection between the propane gas supply con-
tainer and the heater must be disconnected. The
container must be stored in accordance with the
Standard for the Storage and Handling of Liquifi ed
Petroleum Gases, ANSI/NFPA 58, or CSA B149.,
Natural Gas and Propane Gas Installation Code.
18. Propane gas supply containers have left handed
threads. Always use the appropriate wrench to
make a connection to tighten or loosen the P.O.L.
fi tting at the cylinders' gas supply valve.
19. DO NOT attach any ducting to the heater's hot- air
discharge, otherwise heater or property damage
may occur.
Owner's Manual • Tradesman
9