Burner And Burner Orifice - L.B. White AW060 Installation And Service Manual

Over a period of time, the burner and orifice may start to
become blocked if proper cleaning is not conducted. This
can create poor burning of the fuel gas, resulting in nuisance
Heaters w w ith C C ast B B urners:
1. Shut off the gas supply to the heater and disconnect
the heater's electrical supply. Allow heater to cool.
2. Remove the hose and sediment trap from the inlet of
the gas control valve.
3. Remove the retaining bolt located on the underside of
the heater. This bolt holds the burner into a fixed
position.
4. Open the burner end access panel.
5. Remove the protective cover from over the control
valve (if applicable).
6. The gas control valve with manifold can now be
readied for removal from the heater. This procedure
varies slightly depending on model and age of the
heater. Some models allow the valve to be removed
from its metal enclosure by removing two screws that
can be accessed at the control valve inlet.
August 1999
heater problems.
burners and burner plates. If cleaning is necessary, refer to
the following instructions:
Bolt
7.

Burner and Burner Orifice

This section covers heaters with cast
Other models may require removal of the valve
enclosure mounting screws to allow removal of the
enclosure, with valve and manifold assembly, from the
heater.
Enclosure
Specific models such as AW060 and AW100 models
may have a "tab and slot" configuration on the back
side of the valve mounting bracket that assists in
holding the valve enclosure to the base. Pull the valve
enclosure assembly forward to release the tab of the
enclosure from the slot in the base.
Remove the two screws and spacers located at the
right and left hand top of the burner casting (if
applicable).
Servicing
Instructions
Screw
8.9-1 1