Available pressure
A. Central Heating Flow
B. Domestic Hot Water Outlet
C. Gas Inlet
D. Domestic Cold Water Inlet
E. Central Heating Return
1. ue connector
2.
smoke sensor
3.
smoke hood
4. primary heat exchanger
5.
overheat sensor
6. C.H. Flow temperature probe
7. burner
8. ignition electrodes
9. gas valve
10. ignitor
11. secondary heat exchanger
12. C.H. pressure relief valve
13. D.H.W temperature probe
14.
domestic hot water circulating pump
15.
electrical connection box
16. C.H circuit lter
17. D.H.W ow switch
18. circulation pump with air release valve
19. domestic hot water valve
20. diverter valve
21. detection electrode
22. combustion chamber
23. C.H. return temperature probe
24. expansion heating chamber
27. domestic hot water tank
28.
tank sensor
29. expansion DHW chamber