Combustion Head Adjustment - Riello RS 160/E O2 BLU Installation, Use And Maintenance Instructions

5.8

Combustion head adjustment

At this point of the installation, the combustion head is fixed to the
boiler as shown in Fig. 15.
It is therefore especially easy to adjust, and this adjustment de-
pends only on the maximum output of the burner.
Two adjustments of the head are foreseen:
– external air R1
– central air R2
In the diagram (Fig. 20) find the notch at which to adjust both air
and central air.
External air R2 adjustment
 Rotate the screw 4)(Fig. 18 - Fig. 19) until the notch you
have found corresponds with the front surface 5) of the fit-
ting.
To facilitate adjustment, loosen the screw 6),
adjust and then lock.
WARNING
Central air R3 adjustment
 Loosen the 2 screws 1) and rotate the ring nut 2) until the
notch you have found corresponds with the screw 1).
 Block the 2 screws 1).
20164541
Installation
2
(R2)
3
1
24 GB
5
4
(R1)
6
4 5
6
(R1)
0
1
2
3
D7675
Fig. 18
20127192
1
3
2
(R3)
Fig. 19