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Structure of the burner unit
Fig. 2: burner unit
1. Controller
2. Air differential pressure switch
3. Fan air restrictor plate
4. Fan
5. Air baffle plate
(only 20S L / 25S L / 35S L / 45S L / 55S L)
6. Gas combination valve
7. Test nipple (connection pressure)
8. Test nipple (nozzle pressure)
9. Adjustment screw nozzle pressure
10. Adjustment screw start step valve
11. Inspection glass
12. Burner head
13. Burner nozzle
14. Ignition and ionisation electrode
15. Ignition cable
16. Ionisation cable
17. 3-pin power supply plug
18. Locking screw
19. Venturi
20. Burner baffle (only 20S L / 25S L / 35S L)
21. Gasket
novoSchwank L
5
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