Service manual

Service Manual for Flexible Batch Broiler Units

UPPER IR BURNER AIR SUPPLY

The adjustments for the Upper IR Burner air supply

are accessible by removing the Upper Lift Off Panel.

There are two air adjustment screws located on each

side of the blower hose.

NOTE: The air adjustment is factory set and must

not be changed unless authorized to do so by Duke

Manufacturing.

1. Remove the Upper Lift Off Panel.

2. If found loose, reset to exposed thread measurement

to the setting indicated on the broiler.

Air Adjustment Screws

IR Burner Air Adjustment Screws

LOWER BURNER AIR SUPPLY

The adjustment for the lower burner air supply is factory

set and must not be changed. A properly adjusted natural

gas burner has a blue ame around the burner bend with

no yellow tips on the ame. A propane gas burner may

have a small amount of yellow tips on the ames. The

Air Shutter opening on factory J Burners is preset and

welded to 3/8" open. If replacing the J Burner, verify

this opening before installing it.