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GENERAL DIAGRAM FOR INSTALLATION OF GATE-FILTER-
STABILIZER-ANTI-VIBRATION JOINT-OPENABLE PITTING
8780GB.tif
FASTENING THE BURNER TO THE BOILER AND CONNECTION TO THE GAS FEEDING
PIPE
The burner must be applied to the boiler’s iron plate, where
the stud bolts given as standard accessories have al-
ready been fitted in accordance with the plate drilling.
It is advisable to electrically weld the stud bolts to the
internal part of the plate to avoid extracting them together
with the unit’s locking nuts, should the burner be disas-
sembled.
To fit the insulating flange between the burner and the
boiler plate, remove the end section of the combustion
head.
The relative nuts and washers required for connecting the
burner to the boiler have been supplied as standard ac-
cessories.
The unit is equipped with a cylindrical combustion head;
it is advisable to fasten the boiler’s iron plate first and
then the burner.
When the boiler door is not fitted with heat insulation, it is
necessary to insert an insulating protection at least 10
mm. thick between the plate and the boiler.
The boiler plate should be according to our drawing and
have a minimum thickness of 10 mm. in order to avoid
possible deformation.
Before fastening the burner to the boiler, put the sliding
flange in the position considered necessary to allow the
burner head to penetrate the combustion chamber as far
as required by the boiler manufacturer.
When this operation has been completed, connect the
burner to the gas pipeline.
It is indispensable to install a proper fitting on the pipe-
line, in proximity to the burner, to allow for easy disas-
sembling of the burner and/or opening of the boiler door.
In addition, the following should be installed : a cut-off
cock, a gas filter, a stabilizer or a pressure regulator (when
the feed pressure is superior to 400 mm.W.C. = 0,04
bar, and an antivibration joint.
These parts should be installed as described in our draw-
ing (see BT 8780).
We consider it useful to give the following practical tips for installing the essential accessories on the gas pipeline near
to the burner :
1)
To avoid big drops in pressure on ignition, the length of the pipeline between the point where the stabilizer or
reducer is fitted and the burner should be from 1,5 to 2 m.
This pipe must have a diameter equal or superior to that of the burner attachment fitting.
2)
The gas fitting must be applied on horizontal pipes.
This is to avoid any impurities falling into the pipes or entering the stabilizer during cleaning.
3)
To get the best performance out of the pressure stabilizer, it is advisable to fit it onto horizontal pipes, after the
filter. In this way, the vertical movement of the entire mobile part (shutter) of the stabilizer is rapid. (If the
movement of the mobile part were horizontal - with the stabilizer fitted onto vertical pipes - friction to the guide
bush/es of the pin to which the entire mobile part is fitted would delay movement).
4)
We advise installing a bend directly onto the burner gas ramp before applying the removable fitting.
This layout makes it possible to open the boiler door, if there is one, after the pipe fitting itself has been
opened. The above information is clearly illustrated in drawing .
