Gas Train - Riello BS2/M TL Manuel D'entretien

3.2 GAS TRAIN (

according to EN 676 )
The gas train is supplied separately, for its installation/adjustment see the enclosed instructions.
GAS TRAIN
Model
CG 120
CG 220
Fig. 5
4
P w N
mba r
1
3 5
2
Fig. 6
P
P w mb a r N V
D7034
3134
MATCHED
BURNER
CODE
3970587 BS2/M
3970588 BS3/M - BS4/M
9
V
6 8
D7035
7
P
L
F
A
B
CONNECTIONS
INLET OUTLET
Rp 3/4" Flange 2
Rp 3/4" Flange 3
Key to lay-out
1 - Electrical connection for pressure switch
2 - Electrical connection for valves
3 - Setting screw for "P w " gas pressure switch
4 - Gas inlet flange
5 - "ZERO POINT" (N) setting screw
6 - "GAS/AIR RATIO" (V) setting screw
7 - Pressure connection (combustion chamber)
"P F "
8 - Pressure connection (air) "P L "
9 - Gas outlet flange
CONNECTION OF PRESSURE TAPS TO
GAS TRAIN
To connect the taps proceed as follows:
Fit the G1/8 connector (supplied with the

burner) to A (burner flange).
Cut the blue plastic tube supplied with the

burner into two.
Connect boiler tap A with valve tap "P F "

and sleeve tap B with valve tap "P L " using
the previously cut pipes.
6
GB
USE
Natural gas and LPG
Natural gas and LPG