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Installation
Burner assembly
Ø a (mm)
Ø b (mm)
c
155
180 to 270
M10
5
4
6
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.
d
45°
Fitting the burner housing
· Loosen the two screws on the burner
housing as far as possible.
· Angle the burner housing forwards.
· 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 heaters 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-inflammable 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 gas valve assembly
MBZRDLE
· 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.
· Secure the gas valve assembly in
such a way that the magnet coils of
the MBZRDLE 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 082A
· 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.
EN
31
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