A.O. Smith BFM - 100 Installation & Service Manual page 12

2
22
47
18
48
9
11
10
24
49
12
15
8
50
Legend
Only applicable numbers are
mentioned.
2. hot water outlet
5. pressure switch
8. combustion chamber
9. anode
10. tank
11. heat exchanger
12. inspection and cleaning opening
14. cold water inlet
12
Working principle of the appliance
Cut-away view of the appliance
18
2
38
41
36
15. drain valve
16. gas control
18. fan
21. flame probe
22. chimney pipe
24. insulation layer
36. bar burners/burner tray
38. safety thermostat sensor
39. high-limit thermostat sensor
40. burner control
41. control thermostat
5
39
14
45
16
16
42. high-limit thermostat
43. safety thermostat
44. frost thermostat
45. control thermostat sensor
46. frost thermostat sensor
47. air supply
49. air restrictor
50 combustion chamber with
air distribution plate
51. pilot burner
52. spark igniter
Instruction manual BFM
gis
22
47
42
43
44
40
46
21
51
52
IMD-0240 R2