Thermo Pride OMD-70 User Manual
Page 42
All installations and services must be performed by qualified service personnel.
4. With access to the inside of the heat exchanger through the burner cleanout openings and
the vent pipe connection, it is now possible to use a long, flexible wire brush and an
industrial-type vacuum cleaner to remove any soot build-up.
NOTE: A one inch (outside diameter) vacuum cleaner hose will fit into the radiator.
To vacuum and brush the outer radiator of the heat exchanger, go through the cleanout
openings in both directions, as shown in Figure 8.
Figure 8.
Reassemble the furnace to the original factory-built condition. Remount the burner,
being certain that the air tube is properly inserted into the chamber opening. If heavy
soot deposits were found in the heat exchanger, this indicates that the burner may be out
of adjustment. Reset the burner, as indicated under the “BURNER OPERATION AND
ADJUSTMENT”, SECTION L.
: Do not start burner unless blower door is
secured in place.
D. CLEANING OR REPLACING FLUE PIPES
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