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Idiomas disponibles
Idiomas disponibles
(A)
4
1
2
3
L1
(B)
BURNERS AND RELEVANT GAS TRAINS APPROVED ACCORDING TO EN 676
GAS TRAINS L
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
(C)
9
6
7
P2
5
L
Ø
C.T.
1"1/4"
-
♦
1"1/4"
1"1/2
-
♦
1"1/2
2"
-
♦
2"
2"
-
♦
2"
D505
P1
10
8
11
D3791
7
11
Code
Code
3010123
3000843
3010123
3000843
3010123
3000843
3010123
3000843
3010123
-
-
-
3010123
-
-
-
8
GAS LINE
• The gas train must be connected to the gas
attachment 1)(A), using flange 2), gasket 3)
and screws 4) supplied with the burner.
• The gas train can enter the burner from the
right or left side, depending on which is the
most convenient, see fig. (A).
• Gas solenoids must be as close as possible to
the burner to ensure gas reaches the combus-
tion head within the safety time range of 3s.
• Make sure that the pressure governor calibra-
tion range (colour of the spring) comprises the
pressure required by the burner.
GAS TRAIN (B)
It is type-approved according to EN 676 Stan-
dards and is supplied separately from the burner
with the code indicated in table (C).
KEY (B)
1 - Gas input pipe
2 - Manual valve
3 - Vibration damping joint
4 - Pressure gauge with pushbutton cock
5 - Multibloc, including:
- filter (replaceable)
- working valve
- pressure adjuster
6 - Minimum gas pressure switch
7 - Valve seal checking device.
In accordance with the standard EN 676,
gas valve leak detection control devices
are compulsory for burners with maximum
outputs of more than 1200 kW.
8 - Gasket
9 - Gas adjustment butterfly valve
10 - Max gas pressure switch (accessory)
11 - Gas train/burner adaptor
P1 - Pressure at combustion head
P2 - Up-line pressure of valves/adjuster
L - Gas train supplied separately with the code
indicated in table (C)
L1 - The responsibility of the installer
KEY TO TABLE (C)
C.T.= Gas
valves
leak
detection
devices:
- = Gas train without gas valve leak
detection control device; device that
can
be
ordered
assembled subsequently (see Col-
umn 7).
♦= Gas train with assembled VPS valve
leak detection control device.
7
= VPS valve leak detection control device.
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.
control
separately
and
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