Gas Feeding Line - Riello RS 25/M BLU Installation, Use And Maintenance Instructions

(A)
MB
20057264
MBC
20062223
DMV
20062227
CB
(B)
20062228

GAS FEEDING LINE

WARNING
• The gas train must be connected to the gas
attachment 1)(A), using flange 2), gasket 3)
and screws 4) supplied with the burner.
D3839
• The gas train can enter the burner from the
right or left side, depending on which is the
most convenient, see fig.(A).
• The gas solenoids must be as close as possi-
ble to the burner, to ensure that the gas
reaches the combustion head within the safety
time of 3s.
GAS TRAIN
Approved, together with the burner, according to
the regulation EN 676, and supplied separately
from the burner.
KEY TO LAYOUT(B)
1 Gas input pipe
2 Manual valve
3 Vibration damping joint
4 Pressure gauge with pushbutton cock
5 Filter
6A Includes:
- Filter
- working valve
- safety valve
- pressure adjuster
6C Includes
- safety valve
- working valve
6D Includes:
- safety valve
- working valve
- pressure adjuster
- filter
7 Minimum gas pressure switch
8 Leak detection device, supplied as an
accessory or incorporated, based on the gas
train code. In compliance with the EN 676
standard, the leak detection control is compul-
sory for burners with maximum outputs over
1200 kW.
9 Gasket, for "flanged" versions only
10 Pressure adjuster
11 Train-burner adaptor, supplied separately
P2 Upstream pressure of valves/adjuster
P3 Upstream pressure of the filter
L Gas train supplied separately
L1 The responsibility of the installer
Note
See the accompanying instructions for the
adjustment of the gas train.
To select the correct model of the gas train, refer
to the "burner-gas train combination" manual
supplied.
8
The fuel supply line must be installed
by qualified personnel, in com-
pliance with current standards and
laws.
Explosion danger due to fuel leaks in
the presence of a flammable source.
Precautions: avoid knocking, attri-
tion, sparks and heat.
Make sure that the fuel interception
tap is closed before performing any
operation on the burner.