Trane VAL19939 TXV
When high-side pressure regulation is non-negotiable for system stability, the Trane VAL19939 stands as the reliable 3-ton thermal expansion valve for R410A refrigerant applications. Designed for heavy-duty HVAC replacement parts service, this TXV for air conditioners and heat pumps features a 3/8-inch ODF inlet and a 1/2-inch ODF outlet to ensure a clean, leak-free braze. As an OEM Trane expansion valve, it is engineered to maintain precise superheat across varying evaporator loads, protecting compressors from liquid slugging while maximizing the efficiency of 36,000 BTU cooling systems. The external equalizer design allows for accurate pressure feedback, which is critical for modern high-SEER coils. Technicians will find the balanced port construction effective for handling wide-ranging ambient conditions, making this refrigerant metering device a go-to for standardizing performance in residential split systems and light commercial packages.
Key Benefits- Optimized Superheat Control: Precisely modulates R410A refrigerant flow to maintain the evaporator's peak efficiency without risking compressor damage.
- Durable Construction: Features robust ODF sweat connections (3/8" x 1/2") that withstand typical vibration and thermal cycling found in 3-ton heat pumps.
- External Equalizer: Provides the accurate pressure sensing necessary for high-static or multi-circuit evaporator configurations.
- Direct OEM Fit: Eliminates the guesswork in HVAC part compatibility, ensuring the flow rate and pressure drop match the original system design.
Is the Trane VAL19939 compatible with R-22 systems?
No, this specific model is calibrated exclusively for R410A systems. Using it with R-22 will result in improper refrigerant metering and potential system failure.
What are the signs that a 3-ton TXV needs replacement?
Contractors often diagnose a faulty VAL19939 when encountering high superheat, low suction pressure, or a frosted-over evaporator coil that isn't caused by airflow restrictions.
Does this valve include the sensing bulb insulation?
Standard field practice requires wrapping the bulb in insulation for accurate temperature sensing; always verify the bulb is mounted on a clean, horizontal section of the suction line for maximum contact.
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: $144.00
-65%$144.00
$50.40Trane VAL19939 TXV
When high-side pressure regulation is non-negotiable for system stability, the Trane VAL19939 stands as the reliable 3-ton thermal expansion valve for R410A refrigerant applications. Designed for heavy-duty HVAC replacement parts service, this TXV for air conditioners and heat pumps features a 3/8-inch ODF inlet and a 1/2-inch ODF outlet to ensure a clean, leak-free braze. As an OEM Trane expansion valve, it is engineered to maintain precise superheat across varying evaporator loads, protecting compressors from liquid slugging while maximizing the efficiency of 36,000 BTU cooling systems. The external equalizer design allows for accurate pressure feedback, which is critical for modern high-SEER coils. Technicians will find the balanced port construction effective for handling wide-ranging ambient conditions, making this refrigerant metering device a go-to for standardizing performance in residential split systems and light commercial packages.
Key Benefits- Optimized Superheat Control: Precisely modulates R410A refrigerant flow to maintain the evaporator's peak efficiency without risking compressor damage.
- Durable Construction: Features robust ODF sweat connections (3/8" x 1/2") that withstand typical vibration and thermal cycling found in 3-ton heat pumps.
- External Equalizer: Provides the accurate pressure sensing necessary for high-static or multi-circuit evaporator configurations.
- Direct OEM Fit: Eliminates the guesswork in HVAC part compatibility, ensuring the flow rate and pressure drop match the original system design.
Is the Trane VAL19939 compatible with R-22 systems?
No, this specific model is calibrated exclusively for R410A systems. Using it with R-22 will result in improper refrigerant metering and potential system failure.
What are the signs that a 3-ton TXV needs replacement?
Contractors often diagnose a faulty VAL19939 when encountering high superheat, low suction pressure, or a frosted-over evaporator coil that isn't caused by airflow restrictions.
Does this valve include the sensing bulb insulation?
Standard field practice requires wrapping the bulb in insulation for accurate temperature sensing; always verify the bulb is mounted on a clean, horizontal section of the suction line for maximum contact.
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
When high-side pressure regulation is non-negotiable for system stability, the Trane VAL19939 stands as the reliable 3-ton thermal expansion valve for R410A refrigerant applications. Designed for heavy-duty HVAC replacement parts service, this TXV for air conditioners and heat pumps features a 3/8-inch ODF inlet and a 1/2-inch ODF outlet to ensure a clean, leak-free braze. As an OEM Trane expansion valve, it is engineered to maintain precise superheat across varying evaporator loads, protecting compressors from liquid slugging while maximizing the efficiency of 36,000 BTU cooling systems. The external equalizer design allows for accurate pressure feedback, which is critical for modern high-SEER coils. Technicians will find the balanced port construction effective for handling wide-ranging ambient conditions, making this refrigerant metering device a go-to for standardizing performance in residential split systems and light commercial packages.
Key Benefits- Optimized Superheat Control: Precisely modulates R410A refrigerant flow to maintain the evaporator's peak efficiency without risking compressor damage.
- Durable Construction: Features robust ODF sweat connections (3/8" x 1/2") that withstand typical vibration and thermal cycling found in 3-ton heat pumps.
- External Equalizer: Provides the accurate pressure sensing necessary for high-static or multi-circuit evaporator configurations.
- Direct OEM Fit: Eliminates the guesswork in HVAC part compatibility, ensuring the flow rate and pressure drop match the original system design.
Is the Trane VAL19939 compatible with R-22 systems?
No, this specific model is calibrated exclusively for R410A systems. Using it with R-22 will result in improper refrigerant metering and potential system failure.
What are the signs that a 3-ton TXV needs replacement?
Contractors often diagnose a faulty VAL19939 when encountering high superheat, low suction pressure, or a frosted-over evaporator coil that isn't caused by airflow restrictions.
Does this valve include the sensing bulb insulation?
Standard field practice requires wrapping the bulb in insulation for accurate temperature sensing; always verify the bulb is mounted on a clean, horizontal section of the suction line for maximum contact.
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.
