Ao Smith 100111369 Gas Control Valve Natural Gas

Product Description

The AO SMITH 100111369 is a natural gas control valve and thermostat assembly with lead wires, designed as a direct replacement component for residential water heaters. This valve governs gas flow to the burner assembly and integrates thermostat control to regulate water temperature within the tank. It is compatible with hot surface ignition (HSI) control systems and arrives with pre-attached lead wires to simplify field connections. Plumbers and water heater service technicians typically handle this replacement. The part is classified as a replacement component and is matched to specific AO SMITH Series 200 and 201 water heater models.

This gas control valve and thermostat is intended for use in residential water heater applications running on natural gas. It is suited to standard tank-style water heaters in the 40- and 50-gallon capacity range. The valve manages burner operation and temperature setpoint control as an integrated unit, making it a common service replacement when a heater fails to maintain temperature, runs continuously, or shows a fault at the gas valve. Installation is performed on drained, gas-off, and power-isolated units before the valve is exchanged.

Key Features

• Natural gas (NG) configuration with integrated thermostat control
• Includes pre-attached lead wires for direct HSI control system connection
• OEM-style replacement for AO SMITH Series 200 and 201 water heaters
• Fits multiple 40-gallon and 50-gallon model variants
• Combines gas valve and thermostat function in a single assembly

Compatibility

Designed for use with AO SMITH Series 200 and 201 water heaters, including models GCVL-40, XCVL-40, GCV-40, XCV-40, GCVH-40L, GCV-50, and XCV-50.

Installation Notes

Gas control valve replacement should be performed by a licensed plumber or qualified water heater technician. Before beginning, shut off the gas supply at the service valve, disconnect electrical power or low-voltage leads, and drain the tank to relieve pressure as required by local code and manufacturer procedure. Verify the replacement valve is configured for natural gas before installation, and perform a leak test at all gas connections using an approved leak-detection solution after reassembly. Local installation must comply with applicable fuel gas codes, including the International Fuel Gas Code (IFGC) and any jurisdictional amendments.

Technical Specifications

• Fuel Type: Natural Gas (NG)
• Application: Replacement Part
• Compatible Series: 200 and 201
• Lead Wires: Included

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100111369