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4.9
Burner description
7
1
Power modulation unit (only on modulating version)
2
Air pressure switch
3
Gas butterfly control rod
4
Nozzle pin aperture magnet
5
Oil control thermostat
6
High limit thermostat
7
Control box release push-button with lock signal
8
Head drive rod
9
Servomotor
10 Air adjustment cam
11 Max. gas pressure switch
12 Gas pressure socket to sleeve
13 Gas regulator
14 Return pressure adjustment cam
15 Oil pressure switch
16 Pressure gauge on return
17 Pressure gauge on delivery
18 Low limit thermostat
19 Filter
20 Pump unit
21 Gas adjustment cam
22 Fan motor
Technical description of the burner
10
5
1
14
22
8
20
15
16
19
12
9
21
18-6
11
GB
17
2
4
20177686
3
11
13
Fig. 4
20176605
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