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3
Installation
3.1
Installation positions
Horizontal installation
The burner is available in various models to be installed with the air intake from below or above.
3.2
Blast tube length (Fig. 10)
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 chambers, protective fettling in refractory material 5) must be inserted between the boiler fettling 2) and end cone 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. 10) is not required unless it is expressly requested by the boiler manufacturer.
3.3
Securing the burner to the boiler (Fig. 10)
•
Prepare an adequate system of hoisting by
hooking onto the rings 3).
•
Slip the thermal protection (standard equip-
ment) onto the blast tube 4).
•
Place entire burner on the boiler hole
arranged previously and fasten with the
screws given as standard equipment.
The coupling of the burner-boiler must be
air-tight.
3.4
Accessibility to the interior of the combustion head (Fig. 11) (Optional)
•
Switch off the electrical power.
•
Unscrew the locknut 6) and release the tie rod 7).
•
Remove the 4 fixing screws 1).
•
Open burner at hinge (see Fig. 11) (only optional).
•
Disconnect the wires of the electrode and the
probe 2).
•
Turn the under part of the elbow 3) anticlockwise
until it comes free of its slot.
•
Unscrew screw 4) with pressure test point.
•
Extract the internal part 5) of the combustion
head.
•
With burner closed, the accessibility to the interior
combustion head is possible by removing the
cover 8).
3
3
3
D8772
Fig. 10
Fig. 11
D8773
8
1
4
1
2
4
1
7
3
5
2
5
6
9
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