15
3.2. Layout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
20
21
22
23
24
25
1. Condensate drain
2. Modulating gas valve
3. CH temperatura probe
4. Burner nozzles
5. Flame detection electrode
6. Safety thermostat
7. Heat exchanger
8. Sealed combustion chamber
9. Flue gas extraction fan
10. Flue gas pressure test point
11. Flue gas pressure safety switch
12. Flue gas pressure micro switch
13. Condensate detection probe
14. Safety thermostat
15. Air intake/flue gas pipe
16. Flue gas recoverer
17. Flue gas pressure test point
18. Expansion vessel filling tap
19. Expansion vessel
20. Ignition electrode
21. Air purging device
22. Pump
23. Water pressure switch
24. 3-bar safety valve
25. Unloading tap
1. Condensate drain
2. DHW temperature probe
3. Modulating gas valve
4. CH temperature probe
5. Burner nozzles
6. Burner
7. Flame detection electrode
8. Safety thermostat
9. Heat exchanger
10. Sealed combustion chamber
11. Flue gas extraction fan
12. Flue gas pressure test point
13. Flue gas pressure safety switch
14. Flue gas pressure micro switch
15. Condensate detection probe
16. Flue gas recoverer
17. Safety thermostat
18. Air intake/flue gas intake
19. Flue gas pressure test point
20. Expansion vessel filling tap
21. Expansion vessel
22. Ignition electrode
23. Air purging device
24. Pump
25. Water pressure switch
26. Safety valve
27. DHW flow limiting device (max 10 litre/minute)
28. Flow switch
29. Mains water inlet filter
30. Adjustable by-pass
31. Three way valve
32. Secondary plate heat exchanger
G
30
31
2
1
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
22
23
24
25
26
27
28
29
32
14
S
pic. 5
HR MODEL
pic. 6
HC MODEL