Ariston NSGA 500 Instructions Pour L'installation Et L'entretien page 43

1.7 EXPLANATORY DIAGRAMS
WATER HEATER CROSS-SECTION
1. Non-return fume hood
2. Insulation
3. Fume pipe
4. Smoke defl ector
5. Enamelled tank
6. Magnesium anode
7. Drainage fi tting
8. Combustion chamber
9. Heat-insulating base
10. Stainless steel atmospheric burner with
ramp
11. Pilot burner
12. Main burner injectors
13. Gas regulation and safety valves
14. Cold water fi tting
15. Recirculation fi tting
16. Hot water fi tting
DIMENSIONAL DIAGRAM
17. Fume protection device for controlling
combustion by-product expulsion and
draught anomalies
18. Start/stop control knob
19. Thermostatic control knob
20. Pilot fl ame fi tting
21. Main burner fi tting
22. Thermocouple fi tting
23. Main burner fi xing screw
24. Removable cap
25. Warning label
26. Operating instructions label
27. Calibration gas identifi cation label
28. Maintenance checks label
29. Specifi cations label
30. Fume hood label
31. Piezoelectric igniter
GB
43