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11 L80-029 Rev 5 10/07
appliance is in operation, or can be detected visually by watching the burner flame through the air collars. The
sound of the burners will be inconsistent and the flame may appear to ‘peel’ off of the burner face.
A certain amount of flame roll out during ignition is normal. However, excessive flame roll out during burner
operation is abnormal. Excessive flame roll out will cause undue heating in the burner area and will cause the
thermal cut out switch to trip. If there is significant flame roll out upon ignition or during normal operation, the
flue baffle setting may be too restrictive and will need to be adjusted to a more open position.
Determine whether or not the appliance you have upgraded has flue baffles. After performing this upgrade
procedure, observe the appliance during startup and normal operation. If pulsing burners or extreme flame roll
out are detected, adjust the flue baffle according to the following
procedure.
Follow this procedure to verify proper setting of flue baffles
and adjust if necessary:
a. Ensure that the appliance is installed properly under the
hood in the manner in which it is intended to be used.
Turn the appliance on and allow it to execute the
cleaning cycle and go into normal operation. Observe
the operation of the main burners as the appliance
brings the oil to set point, during idling and during
cooking operations.
b. If the burners appear to pulse or the flame is lifting off of
the burner face proceed to step c of this section of these
instructions. If there appears to be significant roll out
during ignition or any time during operation, proceed to
step d of this section of these instructions.
c. For pulsing/lifting burner flame: Turn the appliance
off and allow it to cool. Pull the appliance out from under
the hood and loosen the screws securing the adjustable
slide plate on the flue baffle. Move the slide plate toward
the rear of the appliance to a more restrictive position
and retighten the screws. Repeat steps a and c until no
pulsing or flame lift is observed.
d. For excessive flame roll out: Turn the appliance off and allow it to cool. Pull the appliance out
from under the hood and loosen the screws securing the adjustable slide plate on the flue baffle.
Move the slide plate toward the front of the appliance to a less restrictive position and retighten the
screws. Repeat steps a and d until flame roll out is minimized.
e. Observe burner operation while allowing the appliance to heat up and during hot operation
(cooking and idling): the flue baffle must be adjusted correctly to allow the appliance to operate
properly during both (cold) start up and normal (hot) use conditions. It may be necessary to fine
tune the flue baffle setting for proper operation under both conditions.
WARNING
If the flue baffle CANNOT be adjusted properly, the facility must have the
ventilation system checked immediately to be sure that it is operating within
normal specifications. After the ventilation system is corrected, the baffle
setting must be rechecked. Failure to correct ventilation problems or
properly set flue baffles will result in extremely poor appliance operation
and possible equipment damage.
LESS RESTRICTIVE
MORE RESTRICTIVE