Daikin-McQuay 403589607 TXV
The Daikin-McQuay 403589607 TXV is a precision-engineered thermal expansion valve designed to regulate refrigerant flow with pinpoint accuracy in high-capacity 12.5-ton HVAC systems. Built for the rigors of commercial cooling, this 12.5 ton TXV features 5/8 x 7/8 ODF sweat connections to ensure leak-free integration with standard copper lines. As a critical metering device, it maintains the ideal superheat at the evaporator outlet, preventing compressor liquid slugging while maximizing heat transfer efficiency in R-410A systems. When you are troubleshooting a Daikin 12.5T expansion valve, the robust diaphragm and internal porting of the 403589607 provide the consistent response times required by modern chillers and rooftop units. This OEM refrigerant controller is the go-to replacement for maintaining system subcooling and ensuring your equipment hits its rated SEER/EER performance under varying load conditions without the hunting issues common in generic alternatives.
Key Benefits- Precise 12.5 Ton Capacity: Explicitly calibrated for large-scale Daikin-McQuay commercial units to ensure balanced evaporator loading.
- ODF Sweat Connections: Features 5/8 inch inlet and 7/8 inch outlet ODF ports for secure, high-pressure brazed joins.
- R-410A Compatibility: Optimized for high-pressure HFC refrigerants, providing steady flow modulation across commercial temperature ranges.
- Improved System Reliability: Actively manages evaporator superheat to protect the compressor from liquid floodback and thermal stress.
What are the symptoms of a failing 403589607 TXV?
Common indicators include high superheat at the evaporator, low suction pressure, or "hunting" where the valve opens and closes erratically. If you notice frost at the TXV inlet or the equalizer line, it often points to a restricted orifice or lost power element charge.
Is this valve a direct replacement for 12.5T McQuay units?
Yes, as an OEM Daikin-McQuay part, it is designed for drop-in compatibility with 12.5-ton circuits requiring 5/8 x 7/8 ODF sizing. Always verify the equalizer line configuration and bulb placement during installation for optimal sensing.
Can I use this TXV with R-22 systems?
This specific 403589607 model is engineered for the pressure-temperature characteristics of R-410A. Using it with R-22 will result in improper superheat control due to differences in vapor pressure and flow requirements.
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: $193.90
-65%$193.90
$67.86Daikin-McQuay 403589607 TXV
The Daikin-McQuay 403589607 TXV is a precision-engineered thermal expansion valve designed to regulate refrigerant flow with pinpoint accuracy in high-capacity 12.5-ton HVAC systems. Built for the rigors of commercial cooling, this 12.5 ton TXV features 5/8 x 7/8 ODF sweat connections to ensure leak-free integration with standard copper lines. As a critical metering device, it maintains the ideal superheat at the evaporator outlet, preventing compressor liquid slugging while maximizing heat transfer efficiency in R-410A systems. When you are troubleshooting a Daikin 12.5T expansion valve, the robust diaphragm and internal porting of the 403589607 provide the consistent response times required by modern chillers and rooftop units. This OEM refrigerant controller is the go-to replacement for maintaining system subcooling and ensuring your equipment hits its rated SEER/EER performance under varying load conditions without the hunting issues common in generic alternatives.
Key Benefits- Precise 12.5 Ton Capacity: Explicitly calibrated for large-scale Daikin-McQuay commercial units to ensure balanced evaporator loading.
- ODF Sweat Connections: Features 5/8 inch inlet and 7/8 inch outlet ODF ports for secure, high-pressure brazed joins.
- R-410A Compatibility: Optimized for high-pressure HFC refrigerants, providing steady flow modulation across commercial temperature ranges.
- Improved System Reliability: Actively manages evaporator superheat to protect the compressor from liquid floodback and thermal stress.
What are the symptoms of a failing 403589607 TXV?
Common indicators include high superheat at the evaporator, low suction pressure, or "hunting" where the valve opens and closes erratically. If you notice frost at the TXV inlet or the equalizer line, it often points to a restricted orifice or lost power element charge.
Is this valve a direct replacement for 12.5T McQuay units?
Yes, as an OEM Daikin-McQuay part, it is designed for drop-in compatibility with 12.5-ton circuits requiring 5/8 x 7/8 ODF sizing. Always verify the equalizer line configuration and bulb placement during installation for optimal sensing.
Can I use this TXV with R-22 systems?
This specific 403589607 model is engineered for the pressure-temperature characteristics of R-410A. Using it with R-22 will result in improper superheat control due to differences in vapor pressure and flow requirements.
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 Daikin-McQuay 403589607 TXV is a precision-engineered thermal expansion valve designed to regulate refrigerant flow with pinpoint accuracy in high-capacity 12.5-ton HVAC systems. Built for the rigors of commercial cooling, this 12.5 ton TXV features 5/8 x 7/8 ODF sweat connections to ensure leak-free integration with standard copper lines. As a critical metering device, it maintains the ideal superheat at the evaporator outlet, preventing compressor liquid slugging while maximizing heat transfer efficiency in R-410A systems. When you are troubleshooting a Daikin 12.5T expansion valve, the robust diaphragm and internal porting of the 403589607 provide the consistent response times required by modern chillers and rooftop units. This OEM refrigerant controller is the go-to replacement for maintaining system subcooling and ensuring your equipment hits its rated SEER/EER performance under varying load conditions without the hunting issues common in generic alternatives.
Key Benefits- Precise 12.5 Ton Capacity: Explicitly calibrated for large-scale Daikin-McQuay commercial units to ensure balanced evaporator loading.
- ODF Sweat Connections: Features 5/8 inch inlet and 7/8 inch outlet ODF ports for secure, high-pressure brazed joins.
- R-410A Compatibility: Optimized for high-pressure HFC refrigerants, providing steady flow modulation across commercial temperature ranges.
- Improved System Reliability: Actively manages evaporator superheat to protect the compressor from liquid floodback and thermal stress.
What are the symptoms of a failing 403589607 TXV?
Common indicators include high superheat at the evaporator, low suction pressure, or "hunting" where the valve opens and closes erratically. If you notice frost at the TXV inlet or the equalizer line, it often points to a restricted orifice or lost power element charge.
Is this valve a direct replacement for 12.5T McQuay units?
Yes, as an OEM Daikin-McQuay part, it is designed for drop-in compatibility with 12.5-ton circuits requiring 5/8 x 7/8 ODF sizing. Always verify the equalizer line configuration and bulb placement during installation for optimal sensing.
Can I use this TXV with R-22 systems?
This specific 403589607 model is engineered for the pressure-temperature characteristics of R-410A. Using it with R-22 will result in improper superheat control due to differences in vapor pressure and flow requirements.
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.
