Operating instructions

7
General Information
5.2 Overall View
27
26
25
21
20
24
23
22
9
10
8
13
14
12
15
6
5
4
3
2
1
28
16 18 1917
11
7
Legend:
1. Flue connector
2. Air
intake for twin pipe flue systems
3. Fan
4. Combustion chamber hood
5. Heat exchanger
6. Safety thermostat
7. Combustion chamber
8. Combustion chamber insulation panel
9. Detection electrode
10. Ignition electrodes
11. Pump pressure switch
12. Main circuit temperature probe
13. Safety valve (3 bar)
14. Domestic hot water temperature probe
15. Secondary exchanger
16. Gas valve
17. Spark generator
18. Domestic hot water inlet filter
19. D.H.W. flow switch
20. Drain valve
21. Circulation pump with automatic air release v alve
22. Motorised diverter valve
23. Automatic By-pass
24. Burner
25. Expansion vessel
26. Air pressure switch tube
27. Air pressure switch
28. Combustion analysis points
Fig. 5.0