Burner Closing - Riello RS BLU Series Installation, Use And Maintenance Instructions

External air R1 adjustment
 Rotate the screw 4)(Fig. 20) until the notch you have found
corresponds with the front surface 5) of the flange.
To facilitate adjustment, loosen the screw 6),
adjust and then lock.
WARNING
Central gas/air R2 adjustment (for RS 120-160/EV BLU)
 Loosen the 3 screws 1)(Fig. 20) and rotate the ring nut 2)
until the notch you have found corresponds with the
index 3).
 Block the 3 screws 1).
Example:
RS 120/EV BLU, burner output = 850 kW.
The diagram of (Fig. 19) shows that the adjustments for this po-
tential are:
– air R1 = notch 4
– central gas/air R2 = notch 3
Central air R3 adjustment (only for RS 200/EV BLU)
 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).
The RS 200/EV BLU burner leaves the factory
with the ring nut 3) set to notch 0.
Do not change this value.
WARNING
NOTE:
the diagram (Fig. 19) indicates the optimum adjustment for a
type of boiler according to Fig. 4.
The adjustments indicated can be modified during
the initial start-up.
WARNING
5
4
(R 1)
6
2
(R 2)
3
1
D7675
Installation
2 (R 3)
3
1
Fig. 20
23 GB
5.11

Burner closing

Once the combustion head adjustment is completed:
 reassemble the burner on the guides 3) at about 100 mm
from the pipe coupling 4) - burner in the position shown in
Fig. 17;
 insert the electrode cable, then slide the burner as far as the
pipe coupling - burner in the position shown in Fig. 21;
 connect the plug of the servomotor 14)(Fig. 17) and tighten
the grommet 15);
 connect the socket of the maximum gas pressure switch;
 refit the screws 2) on the guides 3);
 reposition the extensions 6);
 fix the burner to the pipe coupling with the screws 1).
When fitting the burner on the two guides, it is
advisable to gently draw out the high voltage
cable until they are slightly taut.
WARNING
RS 120/EV BLU
3
2
20086318
6
RS 160-200/EV BLU
3
2
20086386
6
4
Fig. 21
4
1
Fig. 22
20085953
5
1
5