Carrier EF17BZ271 Reversing Valve

The Carrier EF17BZ271 Reversing Valve is a critical 4-way pilot-operated refrigerant control designed for high-performance heat pump systems. Engineered as a direct replacement for 1175622, this OEM component features a 1/2" x 7/8" ODF (Outer Diameter Flare) connection, facilitating precise directional control of refrigerant flow to switch between heating and cooling cycles. Operating on a standard 24V solenoid coil, this valve is a Factory Authorized Part, ensuring exact fitment and pressure-drop characteristics for Carrier, Bryant, and Payne equipment.

For technicians in the field, the EF17BZ271 provides a reliable mechanical shift using system differential pressure. Whether you are performing a reversing valve replacement or diagnosing a heat pump stuck in cooling mode, this valve's slide-and-canoe assembly is built to withstand frequent cycling without internal bypass or "bleeding" issues. Maintaining the integrity of the HVAC reversing valve 24V circuit is essential for year-round climate control and compressor protection.

• OEM Compatibility: Precision-engineered direct replacement for 1175622, eliminating the need for extensive piping modifications in Carrier heat pump systems.
• Optimized Flow Control: The 1/2" x 7/8" ODF connection size ensures minimal turbulence and maintains rated capacity during high-demand operation.
• Reliable Switching: Includes a robust 24 volt reversing valve coil designed for immediate response to thermostat signals.
• Durable Construction: Built with high-grade copper and brass to resist corrosion and handle high-pressure R-410A environments.

• How do I confirm if the EF17BZ271 is compatible? This part is specifically sized for systems requiring a 1/2" suction and 7/8" discharge line. Always verify the Carrier OEM part number against your unit's data plate.
• What are the signs of a failing reversing valve? Common indicators include a "whooshing" sound during mode changes, the unit being stuck in one mode despite 24V signal, or a low temperature differential across the valve indicating internal leakage.
• Does this include the solenoid coil? Yes, the EF17BZ271 typically comes equipped with the necessary 24V coil for a complete installation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.