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3150
9
GB
3.5
GAS FEEDING LINE
M2
D5209
1
2
3
M1
5
6
7
4
8
Fig. 6
Key to lay-out
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
8
– Adjusting
valve
M1
– Gas-supply pressure test point
M2
– Pressure coupling test point