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4.11
Burner description
ASSEMBLY VIEW
20177891
1
Lifting rings
2
Fan
3
Fan motor
4
Air damper servomotor
5
Combustion head gas pressure test point
6
Combustion head
7
Ignition electrodes
8
Flame stability disk
9
Electrical panel casing
10 Gas butterfly valve and oil modulator servomotor
11 Fan air inlet
12 Pipe coupling
13 Gasket for boiler fixing
14 Gas butterfly valve
15 Shutter
16 Combustion head movement screw
17 Lever for controlling the dampers with graduated scale
18 Air pressure switch
19 Oil modulator
20 Maximum gas pressure switch with pressure test point
21 Valve group
22 Hinge for opening the burner
23 Pressure test point for air pressure switch "+"
24 Combustion head air pressure test point
25 Gas train adapter
26 Indication for checking the rotation direction of the purging
motor
27 Flame inspection window
28 Flame sensor
29 Motor revolution sensor
30 Transparent protection
31 Pump
20182250
Technical description of the burner
27
34
21
36
33
1
4
17
30
32
11
13
12
24
5
10
25
16
15
1
35
19
20
28
22
18
23
9
2
3
29
26
32 Pump motor
33 Minimum oil pressure switch
34 Maximum oil pressure switch
35 Nozzle return pressure gauge
36 Nozzle delivery pressure gauge
The burner can be opened to the right or to the left
without links to the fuel supply side.
To open the burner see section "Access to head
internal part" on page 23.
WARNING
12
GB
6
31
14
8
7
Fig. 5
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