Burner Description; Standard Equipment - Riello RL 190/M Installation, Use And Maintenance Instructions

4.7

Burner description

1 Ignition electrodes
2 Combustion head
3 Screw for combustion head adjustment
4 Screw for fixing fan to flange
5 Oil pressure switch
6 Pressure gauge for pressure on nozzle return
7 Pressure gauge for pressure on nozzle delivery
8 Pump
9 Non-drip nozzle holder
10 Air gate valves
11 Safety solenoid valve
12 Fan pressure test point
13 Boiler mounting flange
14 Flame stability disk
15 Slide bars for opening the burner and inspecting the com-
bustion head
16 Extensions for slide bars 15)
17 Electrical motor
18 Ignition transformer
19 Motor contactor and thermal cut-out with reset button
20 Power switch for different operations:
automatic - manual - off.
Button for:
power increase - power reduction.
21 Terminal strip
22 Fairleads for electrical connections by installer
23 Control box with lock-out pilot light and lock-out reset button
24 Flame inspection window
25 Photocell for flame presence control
26 Valve assembly with pressure regulator on nozzle return
27 Servomotor, provides adjustment of fuel delivery regulator
and of air gate valve.
When the burner is not operating the air gate valve is fully
closed in order to reduce to a minimum heat dispersion from
the boiler due to the flue draught which draws air from the
fan suction inlet.
Two types of burner failure may occur:
Control box lock-out:
if the control box 23)(Fig. 6) pushbutton lights up, it indicates that
the burner is in lock-out. To reset, press the pushbutton.
Motor trip:
release by pressing the pushbutton on thermal relay 19)(Fig. 6).
4.8

Standard equipment

2 - Hoses (L = 1340 mm)
2 - Gaskets for flexible hoses
2 - Nipples for flexible hoses
1 - Thermal insulation screen
4 - Extensions 16) for slide bars 15)(Fig. 6)
4 - Screws to secure the burner flange to the boiler: M 16 x 40
1 - Instruction booklet
1 - Spare parts list
20033337
Technical description of the burner
12
GB
In case of use with gas oil containing up to 10%
Bio blend, it will be essential to use flexible oil
lines suitable for bio fuel use.
Please contact Riello for further information.
WARNING
D3931
Fig. 6