Gas Control Valve Assembly

Product Overview

The Rheem Gas Control Valve Assembly (Model RTG20239AY, Part #2003986) is an OEM replacement component designed for use in Rheem tankless gas water heater systems. This assembly regulates and modulates gas flow to the burner system, maintaining proper combustion and temperature control within manufacturer specifications. The unit is precision-engineered to ensure safe, efficient, and consistent performance under continuous operation in both residential and commercial installations.

Technical Specifications

• Manufacturer: Rheem Manufacturing Company
• Model / Part: RTG20239AY / 2003986
• Component Type: Gas Control Valve Assembly
• Intended Application: Rheem tankless gas water heaters (specific model compatibility as designated by Rheem)
• Primary Function: Regulates gas flow to the combustion system for precise burner control and temperature management
• Gas Type: Natural Gas or LP (as specified by compatible unit)
• Operating Voltage: Low-voltage control circuit (supplied from appliance controller)
• Control Type: Proportional modulation controlled by system PCB
• Safety Features: Integrated pressure and temperature control; gas shutoff in fault condition
• Construction: Die-cast metal valve body with precision internal regulation components
• Connection Type: Threaded gas inlet/outlet per OEM configuration
• Operating Pressure Range: As specified per appliance installation manual (typ. 3.5 in. WC NG / 10 in. WC LP)
• Operating Temperature: Within appliance-rated ambient limits
• Mounting: Direct mount to combustion assembly per factory design
• Compliance: OEM certified for Rheem systems; complies with applicable CSA and ANSI gas safety standards

Installation and Application Notes

The RTG20239AY Gas Control Valve Assembly is designed for professional installation only. Before replacement, isolate gas and power to the appliance. Remove the existing valve assembly per Rheem service manual procedures and install the new unit using appropriate sealing methods and torque values. Verify all connections for gas integrity and perform leak testing per code requirements. The assembly must be calibrated through the system control board and verified for correct operation under load conditions. Use only with Rheem-approved components and within designated model compatibility lists.

Summary

The Rheem RTG20239AY Gas Control Valve Assembly (Part #2003986) provides regulated gas delivery and combustion control for Rheem tankless water heater systems. It ensures stable burner operation, precise temperature management, and compliance with OEM safety standards, supporting efficient and reliable performance in both residential and commercial water heating applications.