Securing The Burner To The Boiler; Boring The Boiler Plate; Blast Tube Length; Burner Securing - Riello RS 300/E LN Installation, Use And Maintenance Instructions

4.6

Securing the burner to the boiler

4.6.1

Boring the boiler plate

Drill the end plate of the combustion chamber as shown in Fig. 12.
mm A
25
RS 300/E LN 13 /
32"
25
RS 400/E LN 13 /
32"
11
RS 500/E LN 15 /
32"
4.6.2

Blast tube length

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 fettling.
For boilers with front flue passes 1) or flame inversion cham-
bers, protective fettling in refractory material 5) must be inserted
between the boiler fettling 2) and the blast tube 4).
This protective fettling must not compromise the extraction of
the blast tube.
For boilers having a water-cooled front the refractory fettling 2)-
5)(Fig. 13) is not required unless it is expressly requested by the
boiler manufacturer.
D3090
20008423
Installation
D455
Fig. 12
B C
51
3
17 /
/ coarse
64" 4"
51
3
17 / / coarse
64"
4"
51 3
17 / / coarse
64"
4"
Fig. 13
20
4.6.3

Burner securing

 Create a suitable hoisting system by hooking onto the rings
3)(Fig. 13), removing the fastening screws 7) securing the
cover 8) first.
 Slip the thermal protection onto the blast tube 4) (Fig. 13).
 Place entire burner on the boiler hole (arranged previously,
see Fig. 12), and fasten with the screws given as standard
equipment.
 The coupling of the burner-boiler must be airtight.
4.6.4 Accessibility to the interior of the combustion
head
 Open burner at hinge as illustrated in Fig. 14 after releasing
the tie rod of the head movement lever 1) and removing the 4
fastening screws 2).
 Disconnect the wire 3) from the electrode.
 Disconnect the tube of ignition pilot 6).
 Unscrew the under part of the elbow 4) until it comes free of
its slot.
 Extract the internal part 5) of the combustion head.
D3819
GB
4
1 6 3
2
5
Fig. 14