A.o. Smith 100110026 Natural Gas Temperature Control

Product Description

The A.O. SMITH 100110026 is a White Rodgers temperature control valve designed for natural gas water heater systems with FVIR (Flammable Vapor Ignition Resistant) compliance requirements. It regulates gas flow to the burner assembly based on water temperature demand and incorporates a fixed pilot pressure circuit with an Energy Cut-Off (ECO) that interrupts gas flow when tank temperature reaches 195 degrees F. The manifold pressure is factory-set to 3.5 inches water column for natural gas. The A dimension measures 1.25 inches. Licensed plumbers and HVAC technicians install this control as part of water heater service or gas valve replacement on qualifying natural gas appliances.

This temperature control is rated for heating applications on natural gas systems. It is used in residential water heater installations where FVIR construction is required by code. The ECO cutoff at 195 degrees F provides an automatic safety shutoff if the tank reaches an unsafe temperature. The 3.5 inch water column manifold pressure setting aligns with standard natural gas supply requirements for residential storage water heaters.

Key Features

• Factory-set manifold pressure of 3.5 inches water column for natural gas
• Integrated ECO cutoff activates at 195 degrees F to halt gas flow
• Fixed pilot pressure circuit — no field adjustment required
• FVIR-compliant design for qualifying natural gas water heater applications
• A dimension of 1.25 inches for fitment reference during installation

Compatibility

Designed as an OEM-style replacement temperature control for natural gas residential water heaters requiring FVIR compliance and a 3.5 inch water column manifold pressure setting.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas appliance technician. Shut off the gas supply and allow the water heater to cool before removing the existing control. Follow all local gas codes and the appliance manufacturer's service documentation when connecting gas fittings and pilot tubing. Do not attempt to alter the factory manifold pressure setting or ECO calibration.

Technical Specifications

• Fuel Type: Natural Gas
• Manifold Pressure Setting: 3.5 inches W.C.
• ECO Cutoff Temperature: 195 degrees F
• Maximum Temperature Rating: 160 degrees F
• Application: Heating
• A Dimension: 1.25 inches
• FVIR Compliant: Yes

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100110026