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Parts List: A.O. Smith BTH-120, Series 970/971

  • Links are included to the parts that are available to be purchased.
  • Parts that are not listed in the chart are either discontinued by AO Smith or are not available for purchase.
  • The item number in the first column corresponds to the location of the part in the line art drawing below the chart.


Item Description
BTH-120
Series 970/971
4 Top Cover, Left 193885 (new # 100051414)
5 Top Cover, Right 193886 (new # 100051415)
8 T & P Relief Valve 99465-7 (new # 100110714)
9 Upper Temperature Probe with ECO 192606 (new # 100109721)
10 Lower Temperature Probe 192609 (new # 100109726)
  Gas Valve:  
48 Switch, Low Gas Pressure, Natural Gas 191149-5 (new # 100109877)
48 Switch, Low Gas Pressure, Propane 191149-4 (new # 100109876)
50 Gas Valve, Natural Gas 192966 (new # 100109922)
56 Tubing 191746-72 (new # 100109886)
57 Connector, Exhaust 192636 (new # 100110947)
62 Screen 181662 (new # 100110830)
67 Ignitor Assembly 192638 (new # 100109906)
71 Flame Rod Assembly 192478 (new # 100110701)
73 Orifice - Natural Gas 192477-3 (new # 100110617)
74 Orifice Holder 192447 (new # 100110892)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

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