Riello RS 120/EV LN, Installation, Use And Maintenance Instructions

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Installation
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4.5.2 Length of the blast tube
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 must be greater than the thickness of the boiler door
complete with its refractory. The available lengths L are those in-
dicated in the table below.
For boilers with front flue passes 13)(Fig. 12) or flame inversion
chambers, a protection in refractory material 11) must be insert-
ed between the boiler refractory 12) and the blast tube 10).
For boilers with a water-cooled frontal, a refractory lining is not
necessary 11)-12)(Fig. 12) unless expressly requested by the
boiler manufacturer.
Tab. K
4.5.3 Boiler fixing
Secure the burner to the boiler, fixing the flange 9) (Fig. 12) to the
boiler plate and interposing the insulating gasket 8).
Use the 4 screws, with a tightening torque of 26-29 Lbf. ft, after pro-
tecting their thread with anti-seize products.
After the start-up, check there is no leakage of flue gases into the
external environment.
WARNING
This protection must not compromise the extrac-
tion of the blast tube. See Fig. 12.
Model Short blast tube
Long blast tube
(with kit)
RS 120/EV LN 10
“
15
3/8“
Provide an adequate lifting system.
WARNING
The seal between burner and boiler must be air-
tight.
15
5
3
4
2
1
3
14
9
12
11
8
10
13
13
4 "
Fig. 12
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