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INSTRUCTIONS FOR THE USER
9. General information 9
10. Instructions prior to installation 9
11. Boiler installation 10
12. Boiler size 10
13. Fittings present in the packaging 11
14. Installation of flue and air ducts 11
15. Connecting the mains supply 15
16. Changing gas type 22
17. Displaying electronic control card parameters on the boiler display (“INFO” mode) 25
18. Control and operation devices 27
19. Positioning of the ignition and flame sensing electrode 28
20. Check of combustion parameters 28
21. Activating the flue-sweeper function 29
22. Output / pump head performances 29
23. How to disassemble the DHW heat exchanger 30
24. Cleaning the cold water filter 30
25. Annual service 30
26. Using the Siemens QAA73 temperature regulator to program boiler parameters 31
27. Boiler schematic 33-34
28. Illustrated wiring diagram 35-36
29. Technical data 40
1. Instructions prior to installation 4
2. Instructions prior to commissioning 5
3. Commissioning of the boiler 5
4. Filling the boiler 7
5. Switching the boiler off 8
6. Prolonged standstill of the system. Frost protection 8
7. Gas change 8
8. Servicing instructions 8
CONTENTS
INSTRUCTIONS PERTAINING TO THE USER
INSTRUCTIONS PERTAINING TO THE INSTALLER
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