Gas Feeding; Gas Train - Riello RS BLU Serie Instrucciones De Instalación, Uso Y Mantenimiento

5.9

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 that the fuel interception tap is closed
before performing any operation on the burner.
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
WARNING
The gas train must be connected to the gas connection 1) (Fig.
19), using the flange 2), gasket 3) and screws 4) supplied with the
burner.
The train can enter the burner from the right or left side, depend-
ing on which is the most convenient, see (Fig. 19).
The gas solenoids must be as close as possible to the burner to
ensure that the gas reaches the combustion head within the safe-
ty time of 3s.
Ensure that the maximum pressure to the burner is within the cal-
ibration range of the pressure adjuster.
Code Model
3970144 MB-DLE 412
3970197 MB-DLE 412 CT
3970180 MB-DLE 415
3970198 MB-DLE 415 CT
3970181 MB-DLE 420
3970182 MB-DLE 420 CT
3970221 MBC-1200-SE -50
3970225 MBC-1200-SE -50 CT
Key (Tab. I)
C.T. = Checking device for gas valves seal:
- = Gas train without gas valve leak detection control
device; device that can be ordered separately and
assembled subsequently (see Column 7).
 = Train with seal checking device already assem-
bled.
7 = Valve seal checking device VPS. Supplied separately
from gas train on request.
11 = Gas train/burner adaptor. Supplied separately from gas
train on request.
NOTE:
See the accompanying instructions for the adjustment of the

gas train.

Installation
Gas trains L
21
5.9.1 Gas train
The train is type-approved in accordance with EN 676 and sup-
plied separately from the burner, with the code indicated in Tab. I.
Make sure that the gas train is properly installed
by checking for any fuel leaks.
Make sure that there are no gas leaks on the
WARNING
pipes between the gas meter and the burner.
Ø C.T.
1"1/4" -

1"1/4"
1"1/2 -

1"1/2
2" -

2"
2" -

2"
GB
D505
7 11
Code Code
3010123 3000843
3010123 3000843
3010123 3000843
3010123 3000843
3010123 -
- -
3010123 -
- -
Fig. 19
Tab. I
20040563