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All installations and services must be performed by qualified service personnel.
When mounting the burner, the upper mounting plate (Fig. 3) 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. A fiber
insulating sleeve or amulet is provided on the burner tube of specific Thermo Pride burners. (See
Fig. 5). See Thermo Pride burner application chart for type of insulator. Do not allow the burner
tube or end cone to physically touch or protrude into the chamber, as excess heat transfer could
result in destruction of the tube, end cone or both. The burner tube/end cone is properly
positioned, when the end is ¼ inch back from the inside surface of the combustion chamber wall.
When Installing the Riello Burner the bottom mounting plate must be changed out with the
mounting plate provided with the Riello burner.
NOTE: The loose-fill insulation that is included in a brown paper bag 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 excessive temperatures.
CAUTION: When installing the burner, it should be noted that the loose fill insulation and fiber
chambers are made with ceramic fibers. Currently, there is no known chronic health effects in
humans associated with long term exposure to ceramic fibers. The International Agency for
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 to have the possibility of being carcinogenic to humans. IARC has also classified these
fibrous materials as group 2A carcinogens when they have undergone long term exposure to
temperatures greater than 18000F. A group 2A agent is considered to have the probability of
being carcinogenic to humans. For these reasons, we suggest the use of a 3M 9900, 3M 8710 or
equivalent mask when working with any ceramic fiber products. For further information, contact
the Manager of Customer Service for Rex Roto Corporation at (517) 324-7533
Fig. 4: (Top view) Burner insertion illustration
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