Riello BS1D Installation, Use And Maintenance Instructions page 41

3.4 GAS TRAIN,
(as EN 676)
The gas train is supplied separately, for its adjustment see the enclosed instructions.
GAS TRAIN
TYPE
MB ZRDLE 405 B01
MB ZRDLE 405 B01
MB ZRDLE 407 B01
MB ZRDLE 407 B01
MB ZRDLE 410 B01
MB ZRDLE 412 B01
3.5 GAS TRAIN ELECTRICITY SUPPLY
The gas train's power cables can be fed to the right or
left of the burner, as illustrated in figure 6.
Depending on the entry point, the cable clamp with
pressure test point (1) and simple cable clamp (2) may
need swapping over.
Consequently, you must make sure:
®
cable clamp (1) is positioned correctly;
®
the tube is positioned correctly so that there are no
restrictions likely to impede air flowing to the pres-
sure switch.
WARNING
If necessary, cut the tube to the right size.
3.6 GAS FEEDING LINE
1 – Gas supply pipe
2 – Manual cock (charged to the installer)
3 – Gas pressure gauge (charged to the installer)
4 – Filter
5 – Gas pressure switch
6 – Safety valve
7 – Pressure governor
– 1 st and 2 nd adjusting valve
8
M1 – Gas-supply pressure test point
M2 – Pressure coupling test point
3034
MATCHED
BURNER
CODE
3970089 BS1D
3970090 BS2D
3970070 BS2D
3970091 BS3D - BS4D
3970094 BS3D - BS4D
3970095 BS3D - BS4D
1 2
CONNECTIONS
INLET OUTLET
Rp 1/2 Flange 1
Rp 3/4 Flange 2
Rp 3/4 Flange 2
Rp 3/4 Flange 3
Rp 1 1/4 Flange 3
Rp 1 1/4 Flange 3
1
2
3 M1 4 5 6
D5209
7 GB
USE
Natural gas and LPG
Natural gas and LPG
Natural gas and LPG
Natural gas ≤ 150kW and LPG
Natural gas and LPG
Natural gas
Fig. 6
D7113
7 8
Fig. 7
2
1
M2