Dunkirk Excelsior EXB Series - Manual (Page 47)

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Figure 43 - Riello Electrode Setting Figure 44 -Riello Turbulator Setting
17 - OIL BURNER, NOZZLE, & AIR SETTINGS
Turbulator Setting
A. Loosen nut (1) turn SCREW (2) until INDEX MARKER
(3) is aligned with correct index number as per
Burner Settings Table.
B. Tighten RETAINING NUT (1).
NOTE: Zero and four are scale indicators only.
From left to right, first line is 4 and last line 0. On some
models, scale indicators are 0 and 3.
Figure 45 - Carlin Electrode Setting