Unigas R91 VS Series, Manual Of Installation - Use - Maintenance, Page: 15 / 60

15
GAS TRAIN CONNECTIONS
The diagrams show the components of the gas train included in the delivery and which must be fitted by the installer.The diagrams are
in compliance with the current laws.
Gas train with valves group VGD 20/40.. with built-in gas pressure go VPS504 gas proving system
Key
1 Burner
2 Butterfly valve
3 Gas proving system
4 Maximum gas pressure switch (option)
5 Minimum gas pressure switch
6 Gas filter
7 Bellow joint
8 Manual cutoff valve
10 VGD Valves group
14 Pressure stabiliser with filter
*
Note: the maximum gas pressure switch can be mounted either upstream or downstream the gas valve but upstream the butterfly gas
valve (see item no.4 in the scheme above).
ATTENTION: BEFORE EXECUTING THE CONNECTIONS TO THE GAS PIPE NETWORK, BE SURE THAT THE
MANUAL CUTOFF VALVES ARE CLOSED. READ CAREFULLY THE “WARNINGS” CHAPTER AT THE BEGINNING
OF THIS MANUAL.
1
2
5 4
6 7
8
11
16
4
MANUFACTURER
INSTALLER