Riello 20155654, Installation, Use And Maintenance Instructions

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20155699 26 GB
Installation
5.12 Gas pressures
5.12.1 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
11 Train-Burner adaptor, supplied separately
P2 Upline pressure of valves/adjuster
P3 Upstream pressure of the filter
L
Gas train, supplied separately
L1 The responsibility of the installer
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.
WARNING
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
L1 L
6A
P2
7
4
P3
3 2 1
8
Fig. 22
D11854
MBC “threaded”
L L1
P2 6B
7
9
8
4
P3
3
2 1 5
11
Fig. 23
D11855
MBC “flanged”-VGD
L L1
5
6C
P2
7
3
2 1
8
10
11
9
Fig. 24
D11856
DMV “flanged or threaded”
L L1
5
6D
P2
7
3 2 1
8
10
11
9
Fig. 25
D11857
CB “flanged or threaded”