Combustion Air Adjustment; Air Adjustment For Maximum Output - Riello RS 300/E BLU Installation, Use And Maintenance Instructions

COMBUSTION AIR ADJUSTMENT

Fuel/combustion air must be synchronized with
the relevant servomotors (air and gas) by stor-
ing a setting curve by means of the electronic
cam.
To reduce pressure loss and to have a wider
adjustment range, it is best to set the servomo-
tor to the maximum output used, as near to
maximum opening (90°) as possible.
On the gas butterfly valve, the fuel's partial set-
ting adjustment based on required output, with
the servomotor fully open, is made by using the
pressure stabilizer on the gas train.

AIR ADJUSTMENT FOR MAXIMUM OUTPUT

Set the servomotor to maximum opening (near
90°) so that the air butterfly valves are fully
open.
Loosen screw 2)(A) under the burner's intake
and close grille 1)(A) progressively until you
achieve the required output.
The only time reducing intake to a partial setting
is not necessary is when the burner is working
at the top of the operating range given on page
16.
Important.
We recommend you achieve the maximum out-
put required manually, and adjust intake to the
partial setting, define gas pressure and adjust
the combustion head before completing the set-
ting and storing the fuel/combustion air synchro-
nization curves.
(A)
D3094
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