DeWalt DXH135HD, Instruction Manual

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The parts lists and wiring diagram show the heater as it was constructed. Do not
use a heater which is different from that shown. Heater performance is effected
by air pressure setting. If there is any uncertainty about the air pressure setting,
have it checked.
A heater which is
not working right must be repaired, but only by a trained,
experienced service person.
Wiring Diagram Annual Maintenance Schedule
1. AIR OUTPUT FILTER. Remove the air output filter and tap the contaminated
side gently on a solid object to remove contaminates. Compressed air or liquids
should not be used to clean this filter. Reinstall cleaned filter in filter body in
the same position as it was when removed. If the filter appears extremely dirty,
replace it with a new filter of the same type. When replacing the filter cover, be
sure the gasket is firmly in place and the screws in the filter cover are tight to
prevent air leaks.
2. FUEL FILTER. Remove the fuel filter from fuel line and direct compressed air
through the filter in the opposite direction of fuel flow. Safety glasses should be
worn when using compressed air.
3. AIR AND FUEL LINES. If the air or fuel lines are removed during cleaning, be sure
all connections are tight before operating unit.
STORAGE
Store the heater in a dry location free from fumes or dust.
At the end of each heating season, clean the heater as described in the
MAINTENANCE section. Drain and flush the fuel tank with clean fuel. The
manufacturer recommends completely filling the tank with fuel for extended
storage to minimize condensation inside the tank.
SERVICING
A hazardous condition may result if a heater is used that has been modified or is not
functioning properly.
When the heater is working normally:
*
The flame is contained within the heater.
* The flame is essentially yellow.
*
There is no strong disagreeable odor, eye burning or other physical discomfort.
* There is no smoke or soot internal or external to the heater.
* There are no unplanned or unexplained shut downs of the heater.
WARNING
Immediately shut down and do not use a heater that is not working normally. Do not
attempt to re-start and use the heater until it has been serviced by qualified service
personnel.