Riello 40 FS15 Installation, Use And Maintenance Instructions page 48

3.2 PROBE - ELECTRODE POSITIONING
~
Probe
D5104
3.3 GAS FEEDING LINE
1
1 – Gas supply pipe
2 – Manual cock (supplied by the installer)
3 – Gas pressure gauge (supplied by the installer)
4 – Filter
5 – Gas pressure switch
6 – Safety valve
7 – Pressure governor
8 – Adjustment valve
Gas-supply pressure test point
M1 –
M2 – Pressure coupling test point
GAS TRAIN ACCORDING TO EN 676
GAS TRAIN
TYPE
MBDLE 407 B01
The gas train is supplied separately, for its adjustment see the enclosed instructions.
2737
47
mm
2 3 M1
CONNECTIONS
CODE INLET
3970531 Rp 3/4
Ignition electrode
Diffuser
–
2
WARNING
4 5 6 7
OUTLET
Rp 3/4 Natural gas and LPG
4 GB
Ionization probe
Electrode
3
3
mm
8
D5099
USE
=
M2