Trane VAL8179 Reversing Valve

The Trane VAL8179 (also identified by the OEM part number VAL08179) is a heavy-duty 4-way reversing valve designed for large-tonnage 10-ton heat pump systems. As a veteran tech, you know that managing the refrigerant flow in high-capacity 410A or R22 units requires precision. This 10-ton reversing valve is engineered to handle the high mass flow rates of commercial systems, ensuring reliable switching between heating and cooling modes. It features a 0.63" ODF discharge connection and a 1.13" suction line, optimized for suction line refrigerant flow without excessive pressure drops. Whether you are performing a heat pump reversing valve replacement or diagnosing a stuck slide, the VAL8179 provides the mechanical integrity needed to prevent internal bypass and maintain system energy efficiency.

• 10-Ton Capacity: Specifically rated for large residential and commercial Trane HVAC systems, providing the durability required for high-tonnage cycles.
• Precision Refrigerant Routing: Designed for seamless refrigerant flow control, minimizing "bleeding" between the high and low-pressure sides.
• OEM Compatibility: A direct Trane replacement part, ensuring that the true suction and discharge line ports align perfectly with existing piping to reduce brazing time in tight condenser cabinets.
• 24VAC Operation: Compatible with standard 24V control circuits, typically paired with the COL12849 solenoid coil for reliable electrical actuation.

• Is the coil included with this valve? This Trane VAL8179 is often sold as the valve body; verify if your application requires a new 24V solenoid coil or if your existing coil is compatible.
• How do I confirm the valve is sticking? Check the temperature differential across the valve; a significant temperature rise between the true suction line and the suction inlet often indicates an internal mechanical failure or bypass.
• What are the connection sizes? The unit utilizes 5/8" (0.63 in.) ODF Discharge and 1-1/8" (1.13 in.) Suction connections to match standard 10-ton refrigerant piping.

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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.