Trane VAL12849 TXV
Standardize your refrigeration circuit with the Trane VAL12849, a heavy-duty thermostatic expansion valve (TXV) precision-engineered for 3-ton HVAC systems. Designed for reliability in residential and light commercial applications, this Service First OEM replacement part ensures optimal evaporator performance by maintaining constant superheat across fluctuating load conditions. The valve features a 15% bleed port, which is critical for pressure equalization during the off-cycle, allowing for reduced starting torque and preventing compressor hard starts. Utilizing Chatleff fittings for secured, leak-resistant connections, the VAL12849 is primary compatible with R-410A refrigerant, though it is frequently cross-referenced for R-22 and R-404A retrofits involving a 3-ton TXV valve upgrade. Its rugged brass construction provides the durability required to resist corrosion and withstand high-pressure environments typical of modern cooling slabs and air handlers.
Key Benefits
- Precise Refrigerant Metering: Regulates mass flow effectively to prevent liquid slugging and evaporator starving.
- Optimized Pressure Equalization: The 15% bleed rate facilitates faster system balancing between cycles.
- Drop-in Compatibility: Engineered specifically for Trane and American Standard coils utilizing Chatleff TXV connections.
- Enhanced System Efficiency: Maintains the target superheat to maximize heat transfer across the indoor coil.
Common Questions
Does this TXV require an external equalizer line?
This specific VAL12849 model is designed for systems that utilize the Chatleff connection style, which typically integrates the necessary equalization within the valve body and assembly for 3-ton evaporator coils.
Is this valve compatible with R-410A refrigeration systems?
Yes, the Trane 3-ton TXV is purpose-built for high-pressure R-410A refrigerant applications, ensuring the diaphragm and internal components handle the specific pressure-temperature curves of the refrigerant.
How do I ensure the sensing bulb is installed correctly?
For peak performance, mount the sensing bulb on a horizontal run of the suction line at the 4 or 8 o’clock position. Ensure 100% thermal contact with the copper pipe and insulate the bulb to prevent ambient temperature interference.
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 VAL12849 TXV
Standardize your refrigeration circuit with the Trane VAL12849, a heavy-duty thermostatic expansion valve (TXV) precision-engineered for 3-ton HVAC systems. Designed for reliability in residential and light commercial applications, this Service First OEM replacement part ensures optimal evaporator performance by maintaining constant superheat across fluctuating load conditions. The valve features a 15% bleed port, which is critical for pressure equalization during the off-cycle, allowing for reduced starting torque and preventing compressor hard starts. Utilizing Chatleff fittings for secured, leak-resistant connections, the VAL12849 is primary compatible with R-410A refrigerant, though it is frequently cross-referenced for R-22 and R-404A retrofits involving a 3-ton TXV valve upgrade. Its rugged brass construction provides the durability required to resist corrosion and withstand high-pressure environments typical of modern cooling slabs and air handlers.
Key Benefits
- Precise Refrigerant Metering: Regulates mass flow effectively to prevent liquid slugging and evaporator starving.
- Optimized Pressure Equalization: The 15% bleed rate facilitates faster system balancing between cycles.
- Drop-in Compatibility: Engineered specifically for Trane and American Standard coils utilizing Chatleff TXV connections.
- Enhanced System Efficiency: Maintains the target superheat to maximize heat transfer across the indoor coil.
Common Questions
Does this TXV require an external equalizer line?
This specific VAL12849 model is designed for systems that utilize the Chatleff connection style, which typically integrates the necessary equalization within the valve body and assembly for 3-ton evaporator coils.
Is this valve compatible with R-410A refrigeration systems?
Yes, the Trane 3-ton TXV is purpose-built for high-pressure R-410A refrigerant applications, ensuring the diaphragm and internal components handle the specific pressure-temperature curves of the refrigerant.
How do I ensure the sensing bulb is installed correctly?
For peak performance, mount the sensing bulb on a horizontal run of the suction line at the 4 or 8 o’clock position. Ensure 100% thermal contact with the copper pipe and insulate the bulb to prevent ambient temperature interference.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Standardize your refrigeration circuit with the Trane VAL12849, a heavy-duty thermostatic expansion valve (TXV) precision-engineered for 3-ton HVAC systems. Designed for reliability in residential and light commercial applications, this Service First OEM replacement part ensures optimal evaporator performance by maintaining constant superheat across fluctuating load conditions. The valve features a 15% bleed port, which is critical for pressure equalization during the off-cycle, allowing for reduced starting torque and preventing compressor hard starts. Utilizing Chatleff fittings for secured, leak-resistant connections, the VAL12849 is primary compatible with R-410A refrigerant, though it is frequently cross-referenced for R-22 and R-404A retrofits involving a 3-ton TXV valve upgrade. Its rugged brass construction provides the durability required to resist corrosion and withstand high-pressure environments typical of modern cooling slabs and air handlers.
Key Benefits
- Precise Refrigerant Metering: Regulates mass flow effectively to prevent liquid slugging and evaporator starving.
- Optimized Pressure Equalization: The 15% bleed rate facilitates faster system balancing between cycles.
- Drop-in Compatibility: Engineered specifically for Trane and American Standard coils utilizing Chatleff TXV connections.
- Enhanced System Efficiency: Maintains the target superheat to maximize heat transfer across the indoor coil.
Common Questions
Does this TXV require an external equalizer line?
This specific VAL12849 model is designed for systems that utilize the Chatleff connection style, which typically integrates the necessary equalization within the valve body and assembly for 3-ton evaporator coils.
Is this valve compatible with R-410A refrigeration systems?
Yes, the Trane 3-ton TXV is purpose-built for high-pressure R-410A refrigerant applications, ensuring the diaphragm and internal components handle the specific pressure-temperature curves of the refrigerant.
How do I ensure the sensing bulb is installed correctly?
For peak performance, mount the sensing bulb on a horizontal run of the suction line at the 4 or 8 o’clock position. Ensure 100% thermal contact with the copper pipe and insulate the bulb to prevent ambient temperature interference.
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.
