G1. Run combustion air blowers while cleaning ovens.
WHY? : This helps prevent moisture from entering burners,
which may cause problems if not dry for subsequent firing.
G2. Inspect and clean
Blower
Filter Elements on a regular basis. Keeping an extra
blower filter element on hand as a replacement while cleaning
the other is an effective way to virtually eliminate downtime.
WHY? : A clogged blower filter element will create
a pressure drop, which can be detrimental to burner performance,
product in process and burner life.
G3. When rebuilding any of our burners, inspect and replace
manifolds that have become
warped or bowed. Consider replacing them with our new custom
made
stainless steel manifolds for improved oxidation resistance and longer high temperature
dimensional stability.
WHY? : Bowed or warped manifolds will interfere with
proper burner section alignment.
Replace the manifold and union connectors when warping interferes
with parallel and matching height burner alignment. Poor alignment
may result in uneven heat. Burner sections could also impinge
upon each other which reduces their life.
G4. Replace burner sections
after
rebuilding in their
same
location on the manifold. Label or number burner
section base plates with matching location numbers on the manifold
prior to rebuilding to help relocate their original position.
WHY? : Replacing sections in the same location will
make for easier realignment. Poor alignment may cause direct
flame impingement on adjacent burner sections, reducing burner
longevity and transferring uneven heat to your product in
process.
G5. The outer cone of a
pilot
flame must be in constant contact with a
flame
rod for correct placement.
Why? : Poor placement will reduce or interrupt the
flame rod signal to the control panel which should shut off
the burner.
G6. If you want long life for your burners,
don’t
box them in.
Why? : "Boxing in" or hooding burners creates
a barrier preventing the heat from dissipating. By not allowing
the heat to dissipate, the burners will operate in an overheated
condition which could drastically shorten their life.
Another tech tip compared the air/gas mixture entering a burner
to the coolant in an engine. Along the same line, "boxing
in" burners is like blocking air flow to a car engine’s
radiator. In both cases, overheating can result, which shortens
service life.
