Trane VAL8391 Valve
The Trane VAL8391 is a heavy-duty, 4-way heat pump reversing valve engineered for 10-ton commercial and industrial HVACR applications. This OEM Trane replacement part (also identified as VAL08391) is critical for managing refrigerant flow direction, allowing a single system to bridge the gap between heating and cooling cycles. Designed with a robust brass body, it features 1 1/8" x 1 3/8" ODF solder connections to ensure high-pressure stability and leak-free performance under rigorous operational demands. Operating on a standard 24V electrical system, this pilot-operated valve utilizes a pressure differential to shift the internal slide, making it a reliable choice for large-scale refrigerant flow control. For technicians servicing Trane or American Standard equipment, the VAL8391 provides the exact technical specifications—including a 4.5 Mpa pressure regulator rating—required to restore factory-standard performance and efficiency to the refrigeration circuit.
- 10-Ton Capacity: Specifically sized for large-tonnage commercial heat pumps and packaged units.
- Precision Switching: Reliable 24V reversing valve operation ensures seamless transition between heating and cooling modes.
- ODF Solder Connections: Features 1 1/8" suction and 1 3/8" discharge fittings for secure, professional-grade installation.
- OEM Compatibility: Genuine Trane component ensures direct fitment and matches original system pressure drop profiles.
- Durable Brass Construction: Engineered to withstand high-pressure refrigerants and environmental stress in the field.
Common Questions
What are the symptoms of a stuck Trane VAL8391 valve?
A failing reversing valve typically results in the system being "stuck" in one mode (cooling only or heating only) regardless of the thermostat signal. Technicians should check for a temperature differential across the valve; a difference greater than 3°F often indicates an internal leak or a slide that is not fully seating.
How do I test the solenoid coil on this 10-ton valve?
Verify that 24V is present at the coil leads during a call for mode change. You can also test for a magnetic field using a screwdriver or check the coil’s resistance with a multimeter; a healthy 24V coil typically reads between 50 and 80 ohms depending on the specific solenoid model used with the VAL8391.
Can the solenoid coil be replaced without opening the refrigerant circuit?
Yes, the 24V solenoid coil is a separate component that can be swapped if the electrical winding has failed, provided the internal valve slide is still moving freely under pressure differential.
This item is not eligible for free shipping.
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.
Original: $571.04
-65%$571.04
$199.86Trane VAL8391 Valve
The Trane VAL8391 is a heavy-duty, 4-way heat pump reversing valve engineered for 10-ton commercial and industrial HVACR applications. This OEM Trane replacement part (also identified as VAL08391) is critical for managing refrigerant flow direction, allowing a single system to bridge the gap between heating and cooling cycles. Designed with a robust brass body, it features 1 1/8" x 1 3/8" ODF solder connections to ensure high-pressure stability and leak-free performance under rigorous operational demands. Operating on a standard 24V electrical system, this pilot-operated valve utilizes a pressure differential to shift the internal slide, making it a reliable choice for large-scale refrigerant flow control. For technicians servicing Trane or American Standard equipment, the VAL8391 provides the exact technical specifications—including a 4.5 Mpa pressure regulator rating—required to restore factory-standard performance and efficiency to the refrigeration circuit.
- 10-Ton Capacity: Specifically sized for large-tonnage commercial heat pumps and packaged units.
- Precision Switching: Reliable 24V reversing valve operation ensures seamless transition between heating and cooling modes.
- ODF Solder Connections: Features 1 1/8" suction and 1 3/8" discharge fittings for secure, professional-grade installation.
- OEM Compatibility: Genuine Trane component ensures direct fitment and matches original system pressure drop profiles.
- Durable Brass Construction: Engineered to withstand high-pressure refrigerants and environmental stress in the field.
Common Questions
What are the symptoms of a stuck Trane VAL8391 valve?
A failing reversing valve typically results in the system being "stuck" in one mode (cooling only or heating only) regardless of the thermostat signal. Technicians should check for a temperature differential across the valve; a difference greater than 3°F often indicates an internal leak or a slide that is not fully seating.
How do I test the solenoid coil on this 10-ton valve?
Verify that 24V is present at the coil leads during a call for mode change. You can also test for a magnetic field using a screwdriver or check the coil’s resistance with a multimeter; a healthy 24V coil typically reads between 50 and 80 ohms depending on the specific solenoid model used with the VAL8391.
Can the solenoid coil be replaced without opening the refrigerant circuit?
Yes, the 24V solenoid coil is a separate component that can be swapped if the electrical winding has failed, provided the internal valve slide is still moving freely under pressure differential.
This item is not eligible for free shipping.
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.
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Description
The Trane VAL8391 is a heavy-duty, 4-way heat pump reversing valve engineered for 10-ton commercial and industrial HVACR applications. This OEM Trane replacement part (also identified as VAL08391) is critical for managing refrigerant flow direction, allowing a single system to bridge the gap between heating and cooling cycles. Designed with a robust brass body, it features 1 1/8" x 1 3/8" ODF solder connections to ensure high-pressure stability and leak-free performance under rigorous operational demands. Operating on a standard 24V electrical system, this pilot-operated valve utilizes a pressure differential to shift the internal slide, making it a reliable choice for large-scale refrigerant flow control. For technicians servicing Trane or American Standard equipment, the VAL8391 provides the exact technical specifications—including a 4.5 Mpa pressure regulator rating—required to restore factory-standard performance and efficiency to the refrigeration circuit.
- 10-Ton Capacity: Specifically sized for large-tonnage commercial heat pumps and packaged units.
- Precision Switching: Reliable 24V reversing valve operation ensures seamless transition between heating and cooling modes.
- ODF Solder Connections: Features 1 1/8" suction and 1 3/8" discharge fittings for secure, professional-grade installation.
- OEM Compatibility: Genuine Trane component ensures direct fitment and matches original system pressure drop profiles.
- Durable Brass Construction: Engineered to withstand high-pressure refrigerants and environmental stress in the field.
Common Questions
What are the symptoms of a stuck Trane VAL8391 valve?
A failing reversing valve typically results in the system being "stuck" in one mode (cooling only or heating only) regardless of the thermostat signal. Technicians should check for a temperature differential across the valve; a difference greater than 3°F often indicates an internal leak or a slide that is not fully seating.
How do I test the solenoid coil on this 10-ton valve?
Verify that 24V is present at the coil leads during a call for mode change. You can also test for a magnetic field using a screwdriver or check the coil’s resistance with a multimeter; a healthy 24V coil typically reads between 50 and 80 ohms depending on the specific solenoid model used with the VAL8391.
Can the solenoid coil be replaced without opening the refrigerant circuit?
Yes, the 24V solenoid coil is a separate component that can be swapped if the electrical winding has failed, provided the internal valve slide is still moving freely under pressure differential.
This item is not eligible for free shipping.
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.
