Burner Description (Fig. 1) - Riello RL 70/M Installation, Use And Maintenance Instructions

4.2.1 Variants
Power supply
Model Code
3477012
RL 70/M
3477013
3477212
RL 100/M
3477213
3477412
RL 130/M
3477413
PARAMETER TO BE CHECKED
Range
Temperature - 100...+ 500 °C
Pressure 0...2,5 bar
0...16 bar
4.3

Burner description (Fig. 1)

Technical description of the burner
Length of
electrical blast tube mm
Three-phase 272
Three-phase 385
Three-phase 272
Three-phase 385
Three-phase 272
Three-phase 385
Probe with output
4.2.2 Accessories (optional):
• OUTPUT MODULATION REGULATOR KIT
Two components should be ordered:
 the output regulator to install on the burner;
 the probe to install on the heat generator.
PROBE
Type Code
PT 100 3010110
3010213
4...20 mA 3010214
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 Pump
8 Non-drip nozzle holder
9 Air gate valve
10 Fan pressure test point
11 Boiler mounting flange
12 Flame stability disk
13 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.
14 Slide bars for opening the burner and inspecting the com-
bustion head
15 Photocell for flame presence control
16 Electrical motor
17 Extensions for slide bars 14)
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 Bracket for mounting power regulator RWF40
22 Terminal strip
D1216
23 Fairleads for electrical connections by installer
24 Control box with lock-out pilot light and lock-out reset button
25 Flame inspection window
26 Valve assembly with pressure regulator on nozzle return
Two types of burner failure may occur:
Fig. 1
Two types of burner failure may occur:
Control Box Lock-out: if the control box 24) (Fig. 1) 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 cut-out
19) (Fig. 1).
7
GB
POWER REGULATOR
Type Code
RWF40 3010212
5996