Ao Smith 100109219 Propane Gas Temperature Control Fvir

Product Description

The AO SMITH 100109219 is a propane (LP) gas temperature control valve designed for residential water heater applications. Manufactured by White Rodgers for AO SMITH, this control regulates manifold gas pressure at 10.0 inches W.C. and includes an Energy Cut-Off (ECO) that trips at 195 degrees F to protect against overheating. It is compatible with Flammable Vapor Ignition Resistant (FVIR) water heater designs. The burner tube connection uses a left-hand thread, which is standard for propane service. Licensed plumbers and water heater service technicians are the primary installers of this control.

This temperature control is intended for propane-fired residential water heaters requiring FVIR compliance. The 10.0 inches W.C. manifold pressure setting and fixed pilot pressure make it suited for direct OEM-style replacement on units originally equipped with this control. The left-hand thread burner tube connection distinguishes it from natural gas variants and is critical to verify before ordering. Maximum operating temperature is rated at 160 degrees F under normal operating conditions.

Key Features

• Propane (LP) gas service with manifold pressure set at 10.0 inches W.C.
• ECO cut-off activates at 195 degrees F to prevent unsafe water temperatures
• Left-hand thread burner tube connection — standard for LP gas applications
• Fixed pilot pressure for consistent ignition performance
• FVIR-compatible design meets current water heater safety requirements

Compatibility

Designed as an OEM-style replacement temperature control for AO SMITH propane gas water heaters requiring FVIR compliance with a left-hand thread burner tube connection.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician. Shut off the gas supply and allow the unit to cool before beginning any service work. Verify the burner tube connection is left-hand thread before installation, as using incorrect thread direction will damage the fitting. Follow all applicable local codes and the manufacturer's installation instructions when replacing gas controls.

Technical Specifications

• Application: Heating
• Fuel Type: Propane (LP)
• Manifold Pressure Setting: 10.0 inches W.C.
• ECO Cut-Off Temperature: 195 degrees F
• Maximum Operating Temperature: 160 degrees F
• Burner Tube Connection: Left-hand thread
• FVIR Compatible: Yes

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109219