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Directory: Catalog > Water
Heaters > A.O. Smith > Parts
Parts List: A.O. Smith BTH-300A, Series 974/975
- 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.
Cyclone XHE BTH
Parts List
| Item |
Description |
BTH-300A
Series 974-975 |
| 9 |
Temperature and Relief Valve |
99383-3 (new # 100110739)
|
NOTES:
- The manufacturer may change part numbers and availability at any time.
- Standard hardware items may be purchased locally. |
Cyclone XHE BTH Control Panel
| Item |
Description |
BTH-300A
Series 974-975 |
| |
Control Board, Cable Assembly (includes 4 & 4A): |
194811 (new # 100109971) |
| 5 |
Junction Box Assembly |
194126 (new # 100109942) |
Cyclone XHE BTH Operating Controls and Wiring
| Item |
Description |
BTH-300A
Series 974-975 |
| 2 |
Blower Prover Air Switch - Series 974 |
194706 (new # 100109962) |
| 2 |
Blower Prover Air Switch - Series 975 |
195013 (new # 100110806) |
| 3 |
Box, Anode |
194857 (new # 100109972) |
| 4 |
Box, Junction |
194126 (new # 100109942) |
| 8 |
Cable Assembly - Controls |
194784 (new # 100109968) |
| |
Control Board, Cable Assembly (includes item 11 and 11A): |
194811 (new # 100109971) |
| 14 |
Probe, Upper |
192606 (new # 100109721) |
| 15 |
Probe, Lower |
192609 (new # 100109726) |
| 17 |
Switch, Blocked Outlet - Natural Gas |
194910 (new # 100110811) |
| 17 |
Switch, Blocked Outlet - Propane |
195017 (new # 100110887) |
| 20 |
Switch, Natural Gas, Low Gas Pressure |
191149-6 (new # 100109878) |
| 20 |
Switch, Propane, Low Gas Pressure |
191149-4 (new # 100109876) |
| 21 |
Transformer |
192608 (new # 100109904) |
| 22 |
Valve, Natural Gas |
194536-5 (new # 100109959) |
| 22 |
Valve, Propane |
194536-6 (new # 100110885) |
| Item |
Description |
BTH-300A
Series 974-975 |
| Detail - Gas Valve |
| 4 |
Switch, Low Gas Pressure |
191149-6 (new # 100109878) |
| 4 |
Switch, Low Gas Pressure - Propane |
191149-4 (new # 100109876) |
| 6 |
Valve, Natural Gas |
194536-5 (new # 100109959) |
| 8 |
Orifice Holder |
192447 (new # 100110892) |
| Standard hardware items may be purchased locally. |
Exhaust Elbow, Vent Kit & Blower Intake Parts
| Item |
Description |
BTH-300A
Series 974-975 |
| 6 |
Tubing |
191746-72 (new # 100109886) |
| 7 |
Connector, Exhaust |
192636 (new # 100110947) |
Blower/Burner Assembly
| Item |
Description |
BTH-300A
Series 974-975 |
| 1 |
Burner |
194779 (new # 100111863) |
| 2 |
Blower/Motor Assembly |
194746 (new # 100109964) |
| 7 |
Ignitor |
192334 (new # 100110899) |
NOTES:
- The manufacturer may change part numbers and availability at any time.
- Standard hardware items may be purchased locally. |
Powered Anode Assembly
| Item |
Description |
BTH-300A
Series 974-975 |
| 1 |
Anode |
194787 (new # 100111023) |
| 3 |
Control Box |
194857 (new # 100109972) |
Download original AO Smith Parts List
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