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4.5
Boiler plate
Drill the combustion chamber mounting plate as shown in Fig. 12.
The position of the threaded holes can be marked using the gasket
supplied with the burner.
inch
RS 300/EV FGR
13
RS 400/EV FGR
13
RS 500/EV FGR
15
RS 650/EV FGR
17
RS 800/EV FGR
17
4.6
Securing the burner to the boiler
4.6.1
Blast tube length
The length of the blast tube must be selected according to the indi-
cations 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)(Fig. 13) or flame inversion
chambers, protective fettling in refractory material 5) must be in-
serted 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.
4.6.2
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.
4.6.3
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
four 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.
20037075
A
B
25
51
3
/
17
/
/
32"
64"
4"
25
51
3
/
17
/
/
32"
64"
4"
11
51
3
/
17
/
/
32"
64"
4"
5
31
3
/
19
/
/
16"
64"
4"
5
31
3
/
19
/
/
16"
64"
4"
Installation
C
coarse
coarse
coarse
coarse
coarse
D3090
D3819
24
GB
D455
4
1
6
3
2
Fig. 12
Fig. 13
5
Fig. 14
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