
Trane VAL8845 TXV
The Trane VAL8845 is a professional-grade thermostatic expansion valve (TXV) engineered for high-precision refrigerant metering in 2-ton residential and light commercial HVAC systems. Designed specifically for R410A refrigerant, this OEM component maintains the refrigeration cycle's equilibrium by adjusting the flow to the evaporator based on cooling demand. The valve features a 3/8" ODF inlet and a 1/2" ODF outlet, facilitating a secure, leak-resistant connection during field installation. As a non-bleed type valve, it prevents high-side and low-side pressures from equalizing during the off-cycle, which is essential for systems requiring high-efficiency operation and rapid cooling upon startup. This TXV replacement is critical for resolving issues like evaporator freeze-ups, compressor flooding, or inconsistent superheat levels. Utilizing a stainless steel sensing bulb and capillary tube, the Trane VAL8845 provides a reliable feedback loop, protecting the compressor from liquid slugging while maximizing the heat exchange efficiency of the evaporator coil.
Key Benefits- Optimized Superheat Control: Precisely regulates R410A flow to ensure the evaporator operates at peak thermal efficiency.
- Compressor Protection: Prevents liquid refrigerant from returning to the suction line, mitigating the risk of mechanical failure.
- Durable Construction: Built with a robust brass body and moisture-resistant internal components for long-term service in high-pressure 410A environments.
- OEM Compatibility: Exact fit for various Trane and American Standard air handlers and split-system heat pumps.
How do I know if my VAL8845 TXV is failing?
Common indicators include a frozen evaporator coil, high suction pressure with low discharge pressure, or the system failing to reach the temperature setpoint despite the compressor running.
Does this valve require a hard start kit?
For systems utilizing a reciprocating compressor, a hard start kit is highly recommended with this non-bleed TXV to assist the motor during startup against high head pressures.
What is the proper orientation for the sensing bulb?
The sensing bulb should be mounted on a horizontal run of the suction line at the 4 or 8 o'clock position to ensure accurate temperature readings of the refrigerant vapor.
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 VAL8845 TXV
The Trane VAL8845 is a professional-grade thermostatic expansion valve (TXV) engineered for high-precision refrigerant metering in 2-ton residential and light commercial HVAC systems. Designed specifically for R410A refrigerant, this OEM component maintains the refrigeration cycle's equilibrium by adjusting the flow to the evaporator based on cooling demand. The valve features a 3/8" ODF inlet and a 1/2" ODF outlet, facilitating a secure, leak-resistant connection during field installation. As a non-bleed type valve, it prevents high-side and low-side pressures from equalizing during the off-cycle, which is essential for systems requiring high-efficiency operation and rapid cooling upon startup. This TXV replacement is critical for resolving issues like evaporator freeze-ups, compressor flooding, or inconsistent superheat levels. Utilizing a stainless steel sensing bulb and capillary tube, the Trane VAL8845 provides a reliable feedback loop, protecting the compressor from liquid slugging while maximizing the heat exchange efficiency of the evaporator coil.
Key Benefits- Optimized Superheat Control: Precisely regulates R410A flow to ensure the evaporator operates at peak thermal efficiency.
- Compressor Protection: Prevents liquid refrigerant from returning to the suction line, mitigating the risk of mechanical failure.
- Durable Construction: Built with a robust brass body and moisture-resistant internal components for long-term service in high-pressure 410A environments.
- OEM Compatibility: Exact fit for various Trane and American Standard air handlers and split-system heat pumps.
How do I know if my VAL8845 TXV is failing?
Common indicators include a frozen evaporator coil, high suction pressure with low discharge pressure, or the system failing to reach the temperature setpoint despite the compressor running.
Does this valve require a hard start kit?
For systems utilizing a reciprocating compressor, a hard start kit is highly recommended with this non-bleed TXV to assist the motor during startup against high head pressures.
What is the proper orientation for the sensing bulb?
The sensing bulb should be mounted on a horizontal run of the suction line at the 4 or 8 o'clock position to ensure accurate temperature readings of the refrigerant vapor.
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 VAL8845 is a professional-grade thermostatic expansion valve (TXV) engineered for high-precision refrigerant metering in 2-ton residential and light commercial HVAC systems. Designed specifically for R410A refrigerant, this OEM component maintains the refrigeration cycle's equilibrium by adjusting the flow to the evaporator based on cooling demand. The valve features a 3/8" ODF inlet and a 1/2" ODF outlet, facilitating a secure, leak-resistant connection during field installation. As a non-bleed type valve, it prevents high-side and low-side pressures from equalizing during the off-cycle, which is essential for systems requiring high-efficiency operation and rapid cooling upon startup. This TXV replacement is critical for resolving issues like evaporator freeze-ups, compressor flooding, or inconsistent superheat levels. Utilizing a stainless steel sensing bulb and capillary tube, the Trane VAL8845 provides a reliable feedback loop, protecting the compressor from liquid slugging while maximizing the heat exchange efficiency of the evaporator coil.
Key Benefits- Optimized Superheat Control: Precisely regulates R410A flow to ensure the evaporator operates at peak thermal efficiency.
- Compressor Protection: Prevents liquid refrigerant from returning to the suction line, mitigating the risk of mechanical failure.
- Durable Construction: Built with a robust brass body and moisture-resistant internal components for long-term service in high-pressure 410A environments.
- OEM Compatibility: Exact fit for various Trane and American Standard air handlers and split-system heat pumps.
How do I know if my VAL8845 TXV is failing?
Common indicators include a frozen evaporator coil, high suction pressure with low discharge pressure, or the system failing to reach the temperature setpoint despite the compressor running.
Does this valve require a hard start kit?
For systems utilizing a reciprocating compressor, a hard start kit is highly recommended with this non-bleed TXV to assist the motor during startup against high head pressures.
What is the proper orientation for the sensing bulb?
The sensing bulb should be mounted on a horizontal run of the suction line at the 4 or 8 o'clock position to ensure accurate temperature readings of the refrigerant vapor.
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.












