Installation; Operating Position; Boiler Plate; Blast Tube Length - Riello 3470210 Installation, Use And Maintenance Instructions

1 2
(A)
mm A B
RL 34 MZ 160 224
RL 44 MZ 160 224
(B)
1 2
(C)
3 4
C
M 8
M 8
3 5 6
4

INSTALLATION

5
OPERATING POSITION (A)
D3928
only one that allows performing maintenance
operations as described in this manual. Instal-
lations 2, 3 and 4 permit operation but make
maintenance and inspection of the combus-
tion head difficult, page 14.
BOILER PLATE (B)
Drill the combustion chamber locking plate as
shown in (B). The position of the threaded holes
can be marked using the thermal screen sup-
plied with the burner.
BLAST TUBE LENGTH (C)
D455
The length of the blast tube must be selected
according to the indications provided by the
manufacturer of the boiler, and in any case it
10
must be greater than the thickness of the boiler
door complete with its fettling. The range of
lengths available, L, is as follows:
9
8
Blast tube 7):
• short
• long
L
For boilers with front flue passes 10) or flame
inversion chambers, protective fettling in refrac-
tory material 8) must be inserted between the
boiler's fettling 9) and the blast tube 7).
7
This protective fettling must not compromise the
extraction of the blast tube.
For boilers having a water-cooled front the
refractory fettling 8)-9)(C) is not required unless
10
it is expressly requested by the boiler manufac-
turer.
SECURING THE BURNER TO THE BOILER (C)
D3867
Dismantle the nozzle assembly 7) and the pipe
coupling 5) from the burner 4):
- Remove the screws 2) from the two slide
- Remove the screw 1) and move the burner on
Fix assembly 5) and 7) (C) to the boiler plate
and insert the supplied insulating gasket 6) C).
Use the four screws supplied after protecting the
thread with antiseizing products. The burner-
boiler seal must be airtight.
5
THE BURNER MUST BE INSTALLED
!
IN CONFORMITY WITH LEGISLATION
AND LOCAL STANDARDS.
The burner is designed to work only in
!
the positions 1, 2, 3 and 4. 
Installation 1 is preferable, as it is the
Any other position could compromise
the correct working of the appliance.
Installation 5 is prohibited for safety
reasons.
RL 34 MZ
216
351
bars 3).
the guides 3).
RL 44 MZ
216 
351