Assembly Of The Gas Train - Riello RS 70/E MZ Installation, Use And Maintenance Instructions

Installation
4
4.8

Assembly of the gas train

The gas train is type-approved according to standard EN 676 and is sup-
plied separately from the burner, with the code indicated in Appendix B.
The gas train can enter the burner from the right or left side, depending
on which is the most convenient, see Fig. 19.
The gas train must be connected to the gas attachment 1)(Fig. 19) with
the flange 2), the gasket 3) and the screws 4) supplied with the burner.
The gas solenoids must be as close as possible to the burner, to ensure
that the gas reaches the combustion head within the safety time of 3 s.
Ensure that the maximum pressure necessary for the burner is included
in the calibration field of the pressure adjuster (colour of the spring): gas
train MBC-1900-SE.
See the accompanying instructions for the adjustment of
the gas train.
WARNING
7
4
1
2 3
L1
4
1
2 3 5
P3
L1
D3735
Fig. 20
The losses of load along the gas supply line are indicated in Appendix C.
8 11
P1
P2
6A
L
7
8 11
P1
P2
6B 9
L
1
2
3
4
5
6A - "Threaded" multibloc including:
12
10
6B - "Flanged" multibloc including:
13
7
8
9
10 - Gasket supplied with burner
12
11 - Gas adjustment butterfly valve
12 - Maximum gas pressure switch
10
13 - Gas train/burner adaptor
13
P1 - Pressure at combustion head
P2 - Upstream pressure of valves/adjuster
P3 - Pressure upstream from the filter
L
L1 - The responsibility of the installer
D722
- Gas input pipe
- Manual valve
- Vibration damping joint
- Pressure gauge with pushbutton cock
- Filter
- filter (can be replaced)
- safety valve
- working valve
- pressure adjuster
- safety valve
- working valve
- pressure adjuster
- Minimum gas pressure switch
- Valve leak detection control device.
In accordance with the standard EN 676,
leak detection is compulsory for burners with
maximum outputs of more than 1200 kW.
- Gasket
- supplied with burner
- supplied on request separately from the
gas train for the flanged versions
- Gas train supplied separately with the
code indicated in Appendix B.
Fig. 19
17
GB