Assembly Of The Gas Train - Riello RS 50/M MZ Installation & Use Manual

Installation
4
4.7

Assembly of the gas train

The gas train is type-approved according to standard EN 676 and is

supplied separately from the burner, with the code indicated in Appen-
dix B.
The gas train can enter the burner from the right or left side, depend-

ing on which is the most convenient, see Fig. 18.
The gas train must be connected to the gas attachment 1)(Fig. 18)

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 3s.
Ensure that the maximum pressure necessary for the burner is

included in the calibration field of the pressure adjuster (colour of the
spring).
See the accompanying instructions for the adjustment of
the gas train.
WARNING
1 - Gas input pipe
2 - Manual valve
3 - Vibration damping joint
4 - Pressure gauge with pushbutton cock
5 - Filter
6 - Pressure adjuster
7 - Minimum gas pressure switch
8 - Safety solenoid VS
9 - Adjustment solenoid VR
10 - Two adjustments:
• ignition delivery
• maximum delivery
11 - Standard issue burner gasket with flange
12 - Gas adjustment butterfly valve
13 - Burner
14 - Valve 8)-9) leak detection control device.
15 - In compliance with the EN 676 standard, gas valve
leak detection control devices are compulsory for
burners with maximum outputs over 1200 kW.
16 - Gas train/burner adaptor
17 - Maximum gas pressure switch
18 - P1-Pressure at combustion head
19 - P2-Pressure down-line from the pressure adjuster
20 - P3-Pressure upline the filter
L - Gas train supplied separately with the code
indicated in Appendix B
L1 - The responsibility of the installer
The losses of load along the gas supply line are indicated in Appendix C.
(vertical)
(vertical)
(vertical)
(rapid opening)
(slow opening)
D1062
15
GB
D505
Fig. 18
Fig. 19
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