PART II: INSTALLATION
18
Once the gas train in installed, execute the electrical connections for all its items (gas valves group, gas proving system, pressure
switches).
3.3 Gas Filter (if provided)
The gas filters remove the dust particles that are present in the gas, and prevent the elements at risk (e.g.: burner valves, counters and
regulators) from becoming rapidly blocked. The filter is normally installed upstream from all the control and on-off devices.
3.4 Pilot gas train
The connection to the pilot gas train must be done according to the following scheme, valid for LPG. In case of natural gas, connect the
pressure goveror (pos. 3) to the natural gas line (maximum input pressure = 1 bar).
Fig. 11
Key
1
Gas valves
2
Minimum gas pressure switch
3
Gas pressure governor with filter
4
Bellow joint
5
Manual cutoff valve
6
Pressure governor
7
Tank
The pilot gas train is already installed into the burner, the connection from the filter with stabiliser to the gas supply network must be
carried out.
Performance range (mbar)
0 - 22
15 - 120
100 - 250
Spring colour
neutral
yellow
red
ATTENTION: it is reccomended to install the filter with gas flow parallel to the floor in order to prevent dust fall
on the safety valve during maintenance operation.
1
2
4
5
3
1
6
7
MANUFACTURER
INSTALLER
L.P.G.
