A.O. Smith ADM - 115, Installation & Service Manual

Page: 11 / 74

Instruction manual ADM 11
gis
2 Working principle of
the appliance
2.1 Introduction Topics covered in this chapter:
•
General working principle of the appliance ;
• The appliance's heating cycle ;
• Protection for the appliance ;
• Safety of the installation .
2.2 General working
principle of the
appliance The figure shows a cut-away view of the appliance.
Cut-away view of the appliance
Legend
Only applicable numbers are
mentioned.
2. hot water outlet
6. control panel
8. combustion chamber
9. anode
10. tank
11. heat exchanger
12. inspection and cleaning opening
14. cold water inlet
15. drain valve
16. gas control
20. spark igniter
21. flame probe
22. chimney pipe
24. insulation layer
33. draught diverter
34. flue gas sensor
35. radiation shield/condensation
tray
36. bar burners/burner tray
37. flue gas thermostat
38. safety thermostat sensor
39. high-limit thermostat sensor
40. burner control
41. control thermostat
42. high-limit thermostat
43. safety thermostat
44. frost thermostat
45. control thermostat sensor
46. frost thermostat sensor
22
39
46
2
40
38
45
6
41
42
43
44
20
21
14
36
11
33
9
37
34
24
10
12
8
15
35
16
IMD-0133 R2