Boiler Plate; Blast Tube Length; Securing The Burner To The Boiler - Riello RL 190 Two-Stage Operation

Light oil burners
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5.3

Boiler plate

5.4

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).
5.5

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).
20044168
Installation
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.
mm
RL 190
Fig. 6
D455
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.
– 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.
10
GB
A
B
230
325-368
D1247
C
M 16
Fig. 7

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