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.
LESS RESTRICTIVE
MORE RESTRICTIVE
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.
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