Burner Assembly - elco Vectron G 04.570 VARIO Betriebsanleitung

Installation

Burner assembly

Ø a (mm) Ø b (mm)
155 180 bis 270 M10
5
4
6
34
Fitting the burner head
· Prepare the burner's casing/boiler
door as per the drawing.
· Establish the internal diameter a at Ø
155 mm.
· To secure the burner head flange, 4
M10 drillings (drilling diameter 180 -
270mm) are required as per the
drawing.
c d
45°
Fitting the burner housing
· Loosen the two screws on the burner
housing as far as possible.
· Set front of the burner housing at a
slant and insert the two screws into
both eyelets on the burner head
flange.
· Push the burner housing onto the
burner head flange and screw both
screws tightly.
· Where required, the housing can be
fitted over the burner head axis.
Other burner housing positions are not
possible.
Burner installation depth and
brickwork
On boilers without a cooled front wall,
unless the boiler manufacturer indicates
otherwise, brickwork 5 as shown in the
illustration is required. The brickwork
must not protrude beyond the leading
edge of the flame tube, and should have
a minimum conical angle of 60°. The
space between the brickwork and burner
should be filled with an elastic,
non-flammable insulation material 6. On
boilers with reverse firing, minimum
insertion depth A of the burner tube
should be observed as per the
instructions of the boiler manufacturer.
Installation of valve assembly MBVEF
· Check the correct position of the
O-ring in the gas connecting flange.
·
Install the gas connection pipe to the
left or the right of the burner housing.
· Restricting piece 2 must be in place
for operation with a MBVEF407.
· Secure the valve assembly in such a
way that the trip coils of the MBVEF
are positioned absolutely
perpendicular above the gas
valves.
·
Note the direction of flow.
· Fit a thermally activated safety valve
and a gas ball valve (installed on site)
in front of the gas valve assembly.
03/2005 - Art. Nr. 13 018 086A
· Screw the M10 stay bolts into the
burner's casing/boiler door and apply
the insulation material. With a slot
diameter < 270 mm, elongated slots
should be cut to the required
dimensions.
· Secure the burner head using 4 M10
hexagon nuts.