A.O. Smith 975 Series - Manual (Page 7)

7
BTH 300A BTH 400A
Item Description 974/975 974/975
1 Burner .................................................................................................. 194779 ................ 194998
2 Blower/Motor Assembly ....................................................................... 194746 ................ 194746
3 Flange-Burner ..................................................................................... 194960 ................ 194960
4 Gasket ................................................................................................. 194817 ................ 194817
5 Gasket, Burner .................................................................................... 194777 ................ 195016
6 Gasket-Viewport .................................................................................. 194827 ................ 194827
7 Ignitor .................................................................................................. 192334 ................ 192334
8 Screw, #8-18 x 1/2 .............................................................................. 192698 ................ 192698
9 Screw, Socket Head Cap .................................................................... 192515 ................ 192515
10 Screw, Truss Hd. Mach 1/4-20 x 2.00 . ............................................... 194816 ................ 194816
11 Sensor, Flame ................................................................................... 194776-1 ............ 194776-1
12 Window, Observation ......................................................................... 98758-3 .............. 98758-3
13 Hex Nut ............................................................................................... 196882 ................ 196882
Standard hardware items may be purchased locally.
BLOWER/BURNER - ASSEMBLY