Form I-RA/D 350/500, Page 24
General
Maintenance
Requirements
WARNING: Turn off electric power to the unit before
doing any service or maintenance on the heater.
When burning used automotive diesel and truck oils, this heater will
require more frequent service than conventional heating equipment. All
used oils contain a small amount of ash. This ash is similar in texture
to that found in wood burning fireplaces, and varies with the types of oil
used.
FAILURE TO REMOVE THIS ASH ON A REGULAR BASIS WILL
VOID THE WARRANTY.
Do not let your oil supply tank run out of fuel. Check the oil level in the
supply tank daily to be certain an adequate supply is available. Running
out of fuel will require you to re-prime the system.
The following are starting points for tailoring a maintenance schedule to
fit the application. When performing the maintenance procedures listed
below, note the hours on the hour meter (on the remote pump). After one
or two cleanings, the maintenance schedule may be altered based on the
hours of operation. However, if there is a major change in the type of used
oil being burned, maintenance requirements can be affected. Any time
there is a major change in fuel, return to the schedule listed below and
note the hour meter readings to re-tailor the maintenance schedule.
At the end of the heating season or whenever the heater will be
shut down for a long period, always turn off the power.
Clean the
heat exchanger/combustion chamber and the flue pipe. Before restarting,
perform all maintenance checks.
Weekly:
• Check the vacuum gauge on the filter for an indication that the oil
line filter needs replaced and/or motor pump screen needs clean-
ing. The maximum vacuum rise is 10”Hg; the maximum reading
is 15”Hg.
• Inspect the combustion chamber and heat exchanger tubes. If
cleaning is needed, follow the instructions beginning on page 27.
Record the hour meter reading for future reference. A Mainte-
nance Record Chart is provided in the Appendix for this record.
WARNING: Wear protective clothing, including gloves
and a face mask or respirator. Dispose of ash properly.
See the warning statement on cleaning the combustion
chamber.
Monthly:
• Drain water from the bottom of the supply tank until a steady
stream of oil is obtained.
• Clean the backflow/ash sensor switch. Remove any soot from the
sensor. Check the electrical connections.
Maintenance
Maintenance
Schedule
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