9
6074
GB
Installation
4.3
Boiler plate
Drill the combustion chamber locking plate as shown in (Fig. 6).
The position of the threaded holes can be marked using the ther-
mal screen supplied with the burner.
4.4
Blast tube length
The length of the blast tube must be selected according to the in-
dications provided by the manufacturer of the boiler, and in any
case it must be greater than the thickness of the boiler door com-
plete with its refractory. The length available, L (mm), is 370 mm.
For boilers with front flue passes 12) or flame inversion cham-
bers, protective fettling in refractory material 10) must be inserted
between the boiler’s fettling 11) and the blast tube 9).
This protection must not compromise the extraction of the blast
tube.
For boilers having a water-cooled front the refractory fettling 10)-
11) (Fig. 7) is not required unless it is expressly requested by the
boiler manufacturer.
4.5
Securing the burner to the boiler
Disassemble the blast tube 9) from the burner 6) by proceeding
as follows:
– Loosen the four screws 3) and remove the cover 1).
– Remove the screws 2) from the two slide bars 5).
– Remove the two screws 4) fixing the burner 6) to the flange 7).
– Withdraw the blast tube 9) complete with flange 7) and slide
bars 5).
Secure flange 7) (Fig. 7) to the boiler plate interposing the sup-
plied gasket 8) (Fig. 7). Use the 4 screws provided after having
protected the thread with antiscruffing products.
The burner-boiler seal must be airtight.
D455
Fig. 6
mm
A
B
C
RL 190
230
325-368
M 16
Fig. 7
D1247
