Thermo Pride Gas/Propane Furnace PGL - Manual (Page 14)

All installations and services must be performed by qualified service personnel.
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TWO PIECE MOUNTING PLATE
When mounting the burner, the upper mounting plate must be removed to provide access to the area in front of the
combustion chamber. The combustion chamber can then be moved forward or backward slightly to allow for
adjustment in positioning the burner tube. Do not allow the burner tube or end cone to physically touch the chamber,
as excessive heat transfer could result in distortion of the tube or end cone, or both.
Once the burner tube is properly positioned, at most 1/4 inch back from the inside surface of the combustion
chamber wall, the loose-fill insulation that is included should be lightly placed around the burner tube between the
front of the combustion chamber and the burner mounting plate. (DO NOT PACK THE INSULATION DOWN).
The loose-fill insulation should be placed in such a fashion that the surface of the insulation is sloped from the top of
the combustion chamber to the top of the lower mounting plate. The purpose of the loose insulation is to help protect
the burner tube, mounting plates and vestibule area from internal temperatures.
NOTE: Do not place loose insulation around chamber sides and back.
(SIDE VIEW)
BURNER INSERTION
ILLUSTRATION (PGT)
CAUTION: When installing the burner, it should be noted that the loose fill insulation and fiber chambers are made
with ceramic fibers. Currently, there are no known chronic health effects in humans associated with long term
exposure to ceramic fibers. The International Agency of Research on Cancer (IARC) based on its review of studies
that injected ceramic fiber into the abdomens of hamsters and rats have classified fibrous glass wool, mineral wool
(both rock wool and slag wool) and ceramic fiber as group 2B carcinogens. A group 2B agent is considered by IARC