Burner Description - Riello RS 68/M BLU Installation, Use And Maintenance Instructions

4.10

Burner description

12 13
1 Combustion head
2 Ignition electrode
3 Screw for combustion head adjustment
4 Maximum gas pressure switch
5 Pipe coupling
6 Servomotor controlling the gas butterfly valve and the air
damper, by means of a variable profile cam mechanism.
When the burner is not operating the air damper is fully
closed in order to reduce heat dispersion from the boiler due
to the flue draught, which draws air from the fan suction inlet
7 Flame stability disc
8 Boiler fixing flange
9 Gas butterfly valve
10 Gas input pipe
11 Screws to secure fan to pipe coupling
12 Control box with lockout pilot light and reset button
13 Flame inspection window
Technical description of the burner
11
19
14
20
21
15
11
10
6 5 4 3
16 17
14 Air inlet to fan
15 Slide bars for opening the burner and inspecting the
combustion head
16 Gas pressure test point and head fixing screw
17 Air pressure test point
18 Flame sensor probe
19 Air damper
20 Fan motor
21 Extensions for slide bars 15)(Fig. 4)
Burner lockout may occur:
• Control box lockout
if the control box 12)(Fig. 4) push-button lights up, it indicates that
the burner is in lockout.
Press the push-button to reset.
GB
8 7
9
1
2
20169170
20169170
18
Fig. 4
20168422