A.o. Smith 100308934 Hot Water Control 180F Ng Pdv

Product Description

The A.O. SMITH 100308934 is an OEM hot water heater control designed for natural gas water heating systems operating on power direct vent (PDV) configurations. This control unit governs water temperature regulation with a setpoint capacity of 180 degrees F and is rated for 4 inches water column (WC) gas pressure. It is an original manufacturer part, meaning it meets the same design and performance standards as the component it replaces. Licensed plumbers and water heater service technicians are the primary installers of this control in both residential and light commercial applications.

This control is suited for natural gas water heaters using a power direct vent setup, which relies on a motorized blower to exhaust combustion gases through PVC or similar venting rather than a traditional atmospheric or B-vent system. The 4 inches WC rating aligns with standard residential natural gas supply pressure. Installations involving PDV water heaters are common in utility rooms, mechanical rooms, and basement applications where sidewall venting is required or preferred.

Key Features

• OEM replacement control — original A.O. SMITH specification, direct factory-equivalent fit
• 180 degrees F maximum temperature setpoint for high-demand hot water applications
• Rated for 4 inches water column natural gas inlet pressure
• Designed for power direct vent (PDV) water heater systems
• Natural gas (NG) fuel type — not rated for LP or propane configurations

Compatibility

Designed as an OEM-style replacement control for A.O. SMITH natural gas power direct vent water heaters. Consult the unit nameplate and A.O. SMITH parts documentation to confirm fitment before installation.

Installation Notes

This control should be installed by a licensed plumber or qualified water heater service technician in accordance with local plumbing codes and the manufacturer service documentation. Before servicing, shut off the gas supply at the manual shutoff valve and disconnect electrical power to the unit. Do not restore gas or electrical service until all connections are verified and the unit is fully reassembled per manufacturer instructions.

Technical Specifications

• Fuel Type: Natural Gas (NG)
• Maximum Temperature Setpoint: 180 degrees F
• Gas Inlet Pressure Rating: 4 inches water column (WC)
• Vent Configuration: Power Direct Vent (PDV)
• OEM Status: Original OEM Part

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: 100308934