Honeywell Maxon OT FHR Manual page 12

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Dual fuel burners - OXY-THERM
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Burners should not be installed in a down-fired position.
The primary objective is to seal the burner block in the wall of the furnace and support the weight of any system piping.
The burner block sits on the sill or wall. The block must rest flat on the sill or wall without rocking to allow weight to be equally
distributed. Failure to do so could result in cracking and/or block failure. If burner port holes are too large, appropriate material
shims may be used to align the burner.
Burner block failure could result from external forces and stresses transmitted to the burner through the piping. Under no
circumstances should burner be the only support for the piping. Flexible connections are recommended in all piping to reduce
piping stresses and alignment/shifting problems. Installation of such connectors at certain key spots in the oxygen or gas
manifolding can prevent damage to the burners from uneven thermal expansion.
The opening of the furnace wall should provide a minimum of 1/16" clearance on all sides. High temperature furnace sealant or
other appropriate material should be used between burner block and furnace wall.
For maximum burner life, burner housing and associated parts must be protected from hot gases.
Burner installation procedure
Read the entire installation procedure before proceeding with the installation of oxygen-fuel burners.
Failure to follow the proper installation sequence noted below could result in damage or destruction of
vital burner components. Cooling oxygen or air flows should be present at all times when the burner
housing and metal components are mounted to a hot furnace.
To prevent damage in transit, the fuel inserts, mounting gaskets and burner housing may be packed separately. In most cases, the
burner will be shipped assembled. The housing may be removed from the burner block mounting plate to allow installation of the
block/mounting plate assembly only into the furnace wall.
NOTE: A 3/4" (or 12 mm) socket wrench is required for mounting nuts. A manual speed wrench is
recommended for quick and easy mounting of the burner housing.
®
FHR
w w w . m a x o n c o r p . c o m
combustion systems for industry
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