A.o. Smith 100109928 Propane Pilot Burner

Product Description

The A.O. SMITH 100109928 is a propane (LP) pilot burner designed for commercial water heating applications. The pilot burner provides a continuous or intermittent ignition flame that proves burner operation and allows the main gas valve to open. It is a direct service component installed by licensed plumbers, gas fitters, or HVAC technicians during routine maintenance, ignition system repair, or burner assembly replacement on applicable A.O. SMITH BTC-series and Series 970 water heaters.

This pilot burner is rated for propane (LP) gas service and is intended for use in commercial water heating systems where BTC-series units are installed. Typical installation scenarios include mechanical rooms in commercial buildings, multi-family properties, and light industrial facilities where large-capacity gas water heaters are in service. Compatible models are listed in the BTC-series family spanning 120 through 500A capacity designations, Series 970 and up.

Key Features

• Propane (LP) fuel type — not interchangeable with natural gas pilot assemblies
• Designed for BTC-series commercial water heaters, Series 970 and above
• OEM replacement part — direct fit for applicable A.O. SMITH models
• Heating application service component for ignition system maintenance or repair

Compatibility

Compatible with A.O. SMITH BTC-120, BTC-154, BTC-179, BTC-197, BTC-199, BTC-240, BTC-250, BTC-251, BTC-275, BTC-305, BTC-365, and Series 970 and above water heaters requiring a propane pilot burner.

Installation Notes

Installation should be performed by a licensed gas fitter, plumber, or HVAC technician in accordance with local codes and the applicable IFGC or NFPA 54 requirements. Shut off the gas supply and allow all components to cool completely before removing the existing pilot assembly. Verify that the replacement pilot burner is rated for propane service before installation, as LP and natural gas pilot assemblies are not interchangeable. Follow the manufacturer service documentation for proper orifice alignment and thermocouple or thermopile connection procedures.

Technical Specifications

• Fuel Type: Propane (LP)
• Application: Heating
• Compatible Series: BTC-120 through 500A, Series 970 and above

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100109928