17
FIXING TO THE BOILER
In order to divide the combustion head from the
rest of the burner, you have to:
1) remove the connection 1 from the two val-
ves;
2) remove the four screws 2 - 3;
3) slide the burner body A along the rails 4;
4) mount the group B to the boiler plate 6
interposing the gasket 5.
Fit the nozzles and adjust the combustion head
(as specified below). Mount the group A to the
boiler front.
GAS TRAIN ACCORDING TO
REGULATION EN 676
1
Gas input pipe
2
Manual valve
3
Vibration damping joint
4
Pressure gauge with pushbutton cock
5
Filter
6
Pressure governor (vertical)
7
Minimum gas pressure switch
8
Safety solenoid valve VS (vertical)
9
Adjustment solenoid valve VR (vertical)
Three adjustments:
- ignition delivery (rapid opening)
- 1st stage delivery VR1 (slow opening)
- 2nd stage delivery VR2 (slow opening)
10 Standard issue burner gasket with flange
11 Burner
12 Gas valve 8 - 9 leak detection control
device.
- In accordance with EN 676 Standards,
gas valve leak detection control devices
are compulsory for burners with maxi-
mum outputs of more than 1200 kW.
Supplied separately from gas train on
request.
13 Gas train-burner adaptor
Supplied separately from gas train on
request.
P1 Pressure at combustion head
P2 Pressure down-line from the pressure
governor
P3 Pressure up-line from the filter
L Gas train suppled separately with the code
indicated in table.
L1 At the responsability of the installer.
The manifold pressure loss values indicated in the table are for natural gas G20. For:
• G25 multiply the values by 1.3;
• G31 (LPG) multiply the values by 0.41.
GAS TRAIN L
Code
12
Code
13
COMPONENTS
Ø
Code
∆
p mbar at:
Filter
5
Regulator
6
Solenoid valves
8 - 9
175 kW
250 kW
332 kW
3/4”
3970150
12.0
21.0
35.0
3010123
3000824
Multibloc MB ZRDLE 407
1”
3970151
6.0
11.0
17.0
3010123
3000824
Multibloc MB ZRDLE 410
1” 1/4
3970152
3.5
6.0
10.0
3010123
3010124
Multibloc MB ZRDLE 412
1” 1/2
3970153
-
-
6.4
3010125
-
GF 515/1
FRS 515
MVD 515/5+ZRDLE 415/11
1” 1/2
3970183
-
-
5.0
3010123
-
Multibloc MB ZRDLE 415
D1943
D1940
Summary of Contents for GI/EMME 300
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