Trane VAL12789 TXV
The Trane VAL12789 TXV is a critical OEM replacement thermal expansion valve designed for high-capacity 6-ton residential and light commercial evaporator coils. Engineered specifically for R-410A refrigerant systems, this thermostatic expansion valve maintains precise superheat by modulating flow based on the thermal load, preventing liquid slugging and protecting the compressor. Featuring a 79 PSIG outlet pressure rating, it ensures balanced refrigerant distribution across larger 6-ton circuits, which is essential for maintaining the subcooling and superheat parameters required by Trane HVAC systems. The valve utilizes a non-bleed sensing bulb and Chatleff connections (3/4-20 UNF thread), allowing for a reliable mechanical seal during installation. Technicians should verify the 1/2" or 3/4" port sizing to ensure a direct fit for 4TXC and similar coil series. This HVAC expansion valve is a standard solution for correcting issues like evaporator coil freeze-ups or high superheat conditions caused by stuck or restricted metering devices.
Key Benefits:- Precise Refrigerant Metering: Automatically adjusts flow to maintain optimal superheat and system efficiency under variable loads.
- 6-Ton Cooling Capacity: Specifically sized for large tonnage systems, ensuring the evaporator is never starved or flooded.
- High-Pressure Compatibility: Designed for an 81 PSI maximum operating pressure and 79 PSIG outlet, perfectly matched for modern R-410A cooling cycles.
- OEM Standards: Built to original Trane VAL12789 specifications, ensuring exact compatibility with existing 048277-16 part numbers.
- What are the symptoms of a failing VAL12789 TXV? Most technicians will observe high superheat and low suction pressure if the valve is stuck closed, or a flooded evaporator and low superheat if it fails in the open position.
- Is this valve compatible with R-22 systems? No, this R-410A TXV is calibrated specifically for the pressure-temperature relationships of R-410A. Using it with other refrigerants will result in improper metering and potential compressor damage.
- Will this fit 4TXCB or 4TXCC coil models? Yes, the VAL12789 is commonly used as a replacement entry for several 6-ton 4TXC series coils utilizing Chatleff-type connectors.
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.
Trane VAL12789 TXV
The Trane VAL12789 TXV is a critical OEM replacement thermal expansion valve designed for high-capacity 6-ton residential and light commercial evaporator coils. Engineered specifically for R-410A refrigerant systems, this thermostatic expansion valve maintains precise superheat by modulating flow based on the thermal load, preventing liquid slugging and protecting the compressor. Featuring a 79 PSIG outlet pressure rating, it ensures balanced refrigerant distribution across larger 6-ton circuits, which is essential for maintaining the subcooling and superheat parameters required by Trane HVAC systems. The valve utilizes a non-bleed sensing bulb and Chatleff connections (3/4-20 UNF thread), allowing for a reliable mechanical seal during installation. Technicians should verify the 1/2" or 3/4" port sizing to ensure a direct fit for 4TXC and similar coil series. This HVAC expansion valve is a standard solution for correcting issues like evaporator coil freeze-ups or high superheat conditions caused by stuck or restricted metering devices.
Key Benefits:- Precise Refrigerant Metering: Automatically adjusts flow to maintain optimal superheat and system efficiency under variable loads.
- 6-Ton Cooling Capacity: Specifically sized for large tonnage systems, ensuring the evaporator is never starved or flooded.
- High-Pressure Compatibility: Designed for an 81 PSI maximum operating pressure and 79 PSIG outlet, perfectly matched for modern R-410A cooling cycles.
- OEM Standards: Built to original Trane VAL12789 specifications, ensuring exact compatibility with existing 048277-16 part numbers.
- What are the symptoms of a failing VAL12789 TXV? Most technicians will observe high superheat and low suction pressure if the valve is stuck closed, or a flooded evaporator and low superheat if it fails in the open position.
- Is this valve compatible with R-22 systems? No, this R-410A TXV is calibrated specifically for the pressure-temperature relationships of R-410A. Using it with other refrigerants will result in improper metering and potential compressor damage.
- Will this fit 4TXCB or 4TXCC coil models? Yes, the VAL12789 is commonly used as a replacement entry for several 6-ton 4TXC series coils utilizing Chatleff-type connectors.
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 VAL12789 TXV is a critical OEM replacement thermal expansion valve designed for high-capacity 6-ton residential and light commercial evaporator coils. Engineered specifically for R-410A refrigerant systems, this thermostatic expansion valve maintains precise superheat by modulating flow based on the thermal load, preventing liquid slugging and protecting the compressor. Featuring a 79 PSIG outlet pressure rating, it ensures balanced refrigerant distribution across larger 6-ton circuits, which is essential for maintaining the subcooling and superheat parameters required by Trane HVAC systems. The valve utilizes a non-bleed sensing bulb and Chatleff connections (3/4-20 UNF thread), allowing for a reliable mechanical seal during installation. Technicians should verify the 1/2" or 3/4" port sizing to ensure a direct fit for 4TXC and similar coil series. This HVAC expansion valve is a standard solution for correcting issues like evaporator coil freeze-ups or high superheat conditions caused by stuck or restricted metering devices.
Key Benefits:- Precise Refrigerant Metering: Automatically adjusts flow to maintain optimal superheat and system efficiency under variable loads.
- 6-Ton Cooling Capacity: Specifically sized for large tonnage systems, ensuring the evaporator is never starved or flooded.
- High-Pressure Compatibility: Designed for an 81 PSI maximum operating pressure and 79 PSIG outlet, perfectly matched for modern R-410A cooling cycles.
- OEM Standards: Built to original Trane VAL12789 specifications, ensuring exact compatibility with existing 048277-16 part numbers.
- What are the symptoms of a failing VAL12789 TXV? Most technicians will observe high superheat and low suction pressure if the valve is stuck closed, or a flooded evaporator and low superheat if it fails in the open position.
- Is this valve compatible with R-22 systems? No, this R-410A TXV is calibrated specifically for the pressure-temperature relationships of R-410A. Using it with other refrigerants will result in improper metering and potential compressor damage.
- Will this fit 4TXCB or 4TXCC coil models? Yes, the VAL12789 is commonly used as a replacement entry for several 6-ton 4TXC series coils utilizing Chatleff-type connectors.
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.
