Gas Feeding; 5.11.1 Gas Feeding Line - Riello RS 300/EV BLU Installation, Use And Maintenance Instructions

5.11

Gas feeding

Explosion danger due to fuel leaks in the pres-
ence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel interception tap is closed be-
fore performing any operation on the burner.
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
WARNING

5.11.1 Gas feeding line

Key (Fig. 22 - Fig. 23 - Fig. 24 - Fig. 25)
1 Gas input pipe
2 Manual valve
3 Vibration damping joint
4 Pressure gauge with push-button cock
5 Filter
6A Includes:
– Filter
– working valve
– safety valve
– pressure adjuster
6B Includes
– working valve
– safety valve
– pressure adjuster
6C Includes:
– safety valve
– working valve
6D Includes:
– safety valve
– working valve
7 Minimum gas pressure switch
8 Leak detection control, provided as an accessory or integrat-
ed, based on the gas train code. In compliance with the EN
676 standard, the leak detection control is compulsory for
burners with maximum outputs over 1200 kW.
9 Gasket, for "flanged" versions only
10 Pressure adjuster
P2 Upstream pressure of valves/adjuster
P3 Upstream pressure of the filter
L Gas train, supplied separately
L1 The responsibility of the installer
For applications according to the Pressure Equip-
ment Directive PED 97/23/EC, the installer is re-
quired to provide:
WARNING - suitable means for draining and venting as de-
fined in clause K.10 of DIN EN 676;
- valve proving system as defined in clause K.
14.4 of DIN EN 676.
20123768
Installation
MBC "threaded"
2
1
L1
MBC "flanged"
DMV "flanged or threaded"
CB "flanged or threaded"
22 GB
7
8
4
P 2
3
6A
P 3
L
D11854
Fig. 22
20065706
Fig. 23
20065609
Fig. 24
20065707
Fig. 25