16
Fig. 6
1. Control panel
10. Backfl ow valve for HeW circuit
19. Hot water (cold water) inlet
2. “POLO-TURBO” superstructure
11. Backfl ow valve for HoW circuit
20. Filling and discharge
3. Combustion gas collector
12. Gas inlet
21. Burner plate
4. Automatic bleeding valve
13. Heating water outlet
22. Gas valve with ignition automatic
5. Safety valve
14. Boiler body
23. Hinged frontal cover
6. Pump for HoW heating circuit
15. Heating water inlet
24. Set for installation on HoW inlet
7. Combustion exhaust safety valve
16. Hot water tank
25. Expansion vessel for HoW circuit
8. Pump for HeW circuit
17. Hot water outlet
9. Expansion vessel for HeW circuit
18. Connection of HoW circulation
Schematic diagram of boiler