Fuel Selector Valve; Cleaning Instructions - L.B. White Boss 400 DF Manuel Du Propriétaire Et Directives D'installation

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Boss DF Construction Heaters

Fuel Selector Valve

Allows the user to quickly select between propane or
natural gas depending on fuel available at the jobsite,
without making a gas conversion.
The heater ships with the selector valve in the
propane gas (LP) position from the factory. See
Fig. 10 Boss 400DF shown.
Ensure the valve is positioned for the gas being
used prior to starting the heater.
FIG. 10
LP
NG

Cleaning Instructions

WARNING
Fire, Burn and Explosion Hazard
■ This heater contains electrical and mechanical compo-
nents in the gas management, and safety systems.
■ Such components may become inoperative or fail due
to dust, dirt, wear and aging.
■ Periodic cleaning and inspection as well as proper
maintenance are essential to avoid serious injury or
property damage.
1. Before cleaning, shut off all gas supply valves and
disconnect electrical supply.
2. The heater should have dirt or dust removed
periodically:
NOTE: Before each use clean the heater using com-
pressed air or a soft brush or dry rag on its case and
internal components. At this time, dust off the motor case
to prevent the motor from over-heating. Also ensure the
fan blade is free of material build-up.
Owner's Manual • Boss DF