Daikin-McQuay 106489116 TXV
The Daikin-McQuay 106489116 is a high-precision thermostatic expansion valve (TXV) engineered for rigorous metering in residential and light commercial HVACR systems. This OEM refrigerant controller features a 3/8" inlet x 1/2" outlet configuration and is factory-rated for 0.75-ton (3/4 ton) capacity. Designed for R-410A refrigeration systems, it maintains optimal superheat by precisely regulating mass flow into the evaporator, preventing liquid slugging and protecting the compressor from premature failure. The unit includes a 30-inch capillary tube with an external equalizer (EE) to compensate for large pressure drops across the coil, ensuring stable performance under varying load conditions. For technicians performing a TXV replacement, this non-adjustable valve provides a drop-in solution that eliminates the guesswork of field calibration. Utilizing a bleed port design (20% bleed), it facilitates pressure equalization during the off-cycle, reducing starting torque requirements for motors. This Daikin HVAC part is critical for restoring system efficiency and achieving the designed SEER ratings in Daikin and McQuay equipment.
Key Benefits:
- Precise Superheat Control: The external equalizer design monitors evaporator outlet pressure to ensure the metering device responds accurately to load changes.
- Enhanced Compressor Protection: Prevents floodback by maintaining the correct refrigerant charge levels within the evaporator coil.
- OEM Compatibility: Genuine Daikin-McQuay 106489116 ensures exact fitment for 3/4 ton units, reducing installation time and eliminating the need for complex retrofitting.
- System Efficiency: Properly metered refrigerant flow optimizes heat transfer, lowering energy consumption and reducing wear on mechanical components.
- Reliable Construction: Built with high-grade materials to withstand high-pressure R-410A environments and thermal cycling.
Common Questions:
How do I diagnose a failing 106489116 TXV?
Technicians should look for symptoms such as high superheat, low suction pressure, or "hunting" where the pressures fluctuate wildly. Check the sensing bulb for secure contact and insulation; if the bulb loses its charge, the valve will typically fail in the closed position, starving the coil.
Does this valve work with R-22 systems?
No, the 106489116 is specifically designed and calibrated for R-410A systems. Using this valve with R-22 will result in incorrect refrigerant flow rates and potential equipment damage due to different pressure-temperature relationships.
What is the purpose of the 30-inch capillary tube?
The 30" cap tube provides the necessary length to reach the suction line for proper sensing bulb placement, which is mandatory for measuring the suction gas temperature and controlling the valve orifice accordingly.
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: $97.86
-65%$97.86
$34.25Daikin-McQuay 106489116 TXV
The Daikin-McQuay 106489116 is a high-precision thermostatic expansion valve (TXV) engineered for rigorous metering in residential and light commercial HVACR systems. This OEM refrigerant controller features a 3/8" inlet x 1/2" outlet configuration and is factory-rated for 0.75-ton (3/4 ton) capacity. Designed for R-410A refrigeration systems, it maintains optimal superheat by precisely regulating mass flow into the evaporator, preventing liquid slugging and protecting the compressor from premature failure. The unit includes a 30-inch capillary tube with an external equalizer (EE) to compensate for large pressure drops across the coil, ensuring stable performance under varying load conditions. For technicians performing a TXV replacement, this non-adjustable valve provides a drop-in solution that eliminates the guesswork of field calibration. Utilizing a bleed port design (20% bleed), it facilitates pressure equalization during the off-cycle, reducing starting torque requirements for motors. This Daikin HVAC part is critical for restoring system efficiency and achieving the designed SEER ratings in Daikin and McQuay equipment.
Key Benefits:
- Precise Superheat Control: The external equalizer design monitors evaporator outlet pressure to ensure the metering device responds accurately to load changes.
- Enhanced Compressor Protection: Prevents floodback by maintaining the correct refrigerant charge levels within the evaporator coil.
- OEM Compatibility: Genuine Daikin-McQuay 106489116 ensures exact fitment for 3/4 ton units, reducing installation time and eliminating the need for complex retrofitting.
- System Efficiency: Properly metered refrigerant flow optimizes heat transfer, lowering energy consumption and reducing wear on mechanical components.
- Reliable Construction: Built with high-grade materials to withstand high-pressure R-410A environments and thermal cycling.
Common Questions:
How do I diagnose a failing 106489116 TXV?
Technicians should look for symptoms such as high superheat, low suction pressure, or "hunting" where the pressures fluctuate wildly. Check the sensing bulb for secure contact and insulation; if the bulb loses its charge, the valve will typically fail in the closed position, starving the coil.
Does this valve work with R-22 systems?
No, the 106489116 is specifically designed and calibrated for R-410A systems. Using this valve with R-22 will result in incorrect refrigerant flow rates and potential equipment damage due to different pressure-temperature relationships.
What is the purpose of the 30-inch capillary tube?
The 30" cap tube provides the necessary length to reach the suction line for proper sensing bulb placement, which is mandatory for measuring the suction gas temperature and controlling the valve orifice accordingly.
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
The Daikin-McQuay 106489116 is a high-precision thermostatic expansion valve (TXV) engineered for rigorous metering in residential and light commercial HVACR systems. This OEM refrigerant controller features a 3/8" inlet x 1/2" outlet configuration and is factory-rated for 0.75-ton (3/4 ton) capacity. Designed for R-410A refrigeration systems, it maintains optimal superheat by precisely regulating mass flow into the evaporator, preventing liquid slugging and protecting the compressor from premature failure. The unit includes a 30-inch capillary tube with an external equalizer (EE) to compensate for large pressure drops across the coil, ensuring stable performance under varying load conditions. For technicians performing a TXV replacement, this non-adjustable valve provides a drop-in solution that eliminates the guesswork of field calibration. Utilizing a bleed port design (20% bleed), it facilitates pressure equalization during the off-cycle, reducing starting torque requirements for motors. This Daikin HVAC part is critical for restoring system efficiency and achieving the designed SEER ratings in Daikin and McQuay equipment.
Key Benefits:
- Precise Superheat Control: The external equalizer design monitors evaporator outlet pressure to ensure the metering device responds accurately to load changes.
- Enhanced Compressor Protection: Prevents floodback by maintaining the correct refrigerant charge levels within the evaporator coil.
- OEM Compatibility: Genuine Daikin-McQuay 106489116 ensures exact fitment for 3/4 ton units, reducing installation time and eliminating the need for complex retrofitting.
- System Efficiency: Properly metered refrigerant flow optimizes heat transfer, lowering energy consumption and reducing wear on mechanical components.
- Reliable Construction: Built with high-grade materials to withstand high-pressure R-410A environments and thermal cycling.
Common Questions:
How do I diagnose a failing 106489116 TXV?
Technicians should look for symptoms such as high superheat, low suction pressure, or "hunting" where the pressures fluctuate wildly. Check the sensing bulb for secure contact and insulation; if the bulb loses its charge, the valve will typically fail in the closed position, starving the coil.
Does this valve work with R-22 systems?
No, the 106489116 is specifically designed and calibrated for R-410A systems. Using this valve with R-22 will result in incorrect refrigerant flow rates and potential equipment damage due to different pressure-temperature relationships.
What is the purpose of the 30-inch capillary tube?
The 30" cap tube provides the necessary length to reach the suction line for proper sensing bulb placement, which is mandatory for measuring the suction gas temperature and controlling the valve orifice accordingly.
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.
