York S1-129201 Expansion Valve
The York S1-129201 Expansion Valve is a critical precision metering device designed for high-efficiency refrigerant flow control in residential and light commercial HVAC systems. This thermostatic expansion valve (TXV) utilizes a 1/2" inlet, 7/8" outlet, and 1/4" external equalizer connection to maintain optimal superheat across the evaporator coil, preventing liquid slugging and protecting the compressor. Featuring a 5-foot long capillary tube and a durable sensing bulb, the S1-129201 ensures responsive temperature feedback even in complex coil configurations. As a genuine York OEM replacement part, it is engineered for multi-refrigerant compatibility, including R-410A, R-22, and R-407C applications. This thermal expansion valve is essential for technicians performing HVAC system repairs who require exact factory specifications to restore factory-set SEER ratings and heat transfer efficiency. Its rugged construction provides long-term reliability in demanding environments without the risk of bypass leakage or mechanical binding common in aftermarket alternatives.
Key Benefits:- Precise Superheat Regulation: Modulates refrigerant flow dynamically to maintain the specific thermal balance required for peak evaporator performance.
- Multi-Refrigerant Versatility: Verified for use with R-410A TXV, R-22, and R-407C systems, streamlining inventory for diverse service calls.
- OEM Direct Fit: Eliminates the need for field modifications with exact 1/2 x 7/8 x 1/4 brazed or flare connections.
- Extended Reach: The 5-foot capillary lead allows for flexible sensing bulb placement, ensuring accurate readings on larger suction lines.
Is the S1-129201 compatible with R-410A systems?
Yes, this valve is rated for R-410A refrigerant as well as older R-22 and R-407C cooling systems, provided the pressure ratings match the equipment specifications.
What are the connection sizes for this York TXV?
The unit features a 1/2" inlet, a 7/8" outlet, and a 1/4" external equalizer line to allow for precise monitoring of evaporator pressure.
When should a technician replace the thermostatic expansion valve?
Replacement is necessary when the valve becomes "hunted," stuck open (causing flooding), or stuck closed (starving the evaporator), often indicated by improper superheat readings that cannot be corrected by charge adjustment.
This item is not eligible for free shipping.
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: $730.94
-65%$730.94
$255.83York S1-129201 Expansion Valve
The York S1-129201 Expansion Valve is a critical precision metering device designed for high-efficiency refrigerant flow control in residential and light commercial HVAC systems. This thermostatic expansion valve (TXV) utilizes a 1/2" inlet, 7/8" outlet, and 1/4" external equalizer connection to maintain optimal superheat across the evaporator coil, preventing liquid slugging and protecting the compressor. Featuring a 5-foot long capillary tube and a durable sensing bulb, the S1-129201 ensures responsive temperature feedback even in complex coil configurations. As a genuine York OEM replacement part, it is engineered for multi-refrigerant compatibility, including R-410A, R-22, and R-407C applications. This thermal expansion valve is essential for technicians performing HVAC system repairs who require exact factory specifications to restore factory-set SEER ratings and heat transfer efficiency. Its rugged construction provides long-term reliability in demanding environments without the risk of bypass leakage or mechanical binding common in aftermarket alternatives.
Key Benefits:- Precise Superheat Regulation: Modulates refrigerant flow dynamically to maintain the specific thermal balance required for peak evaporator performance.
- Multi-Refrigerant Versatility: Verified for use with R-410A TXV, R-22, and R-407C systems, streamlining inventory for diverse service calls.
- OEM Direct Fit: Eliminates the need for field modifications with exact 1/2 x 7/8 x 1/4 brazed or flare connections.
- Extended Reach: The 5-foot capillary lead allows for flexible sensing bulb placement, ensuring accurate readings on larger suction lines.
Is the S1-129201 compatible with R-410A systems?
Yes, this valve is rated for R-410A refrigerant as well as older R-22 and R-407C cooling systems, provided the pressure ratings match the equipment specifications.
What are the connection sizes for this York TXV?
The unit features a 1/2" inlet, a 7/8" outlet, and a 1/4" external equalizer line to allow for precise monitoring of evaporator pressure.
When should a technician replace the thermostatic expansion valve?
Replacement is necessary when the valve becomes "hunted," stuck open (causing flooding), or stuck closed (starving the evaporator), often indicated by improper superheat readings that cannot be corrected by charge adjustment.
This item is not eligible for free shipping.
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 York S1-129201 Expansion Valve is a critical precision metering device designed for high-efficiency refrigerant flow control in residential and light commercial HVAC systems. This thermostatic expansion valve (TXV) utilizes a 1/2" inlet, 7/8" outlet, and 1/4" external equalizer connection to maintain optimal superheat across the evaporator coil, preventing liquid slugging and protecting the compressor. Featuring a 5-foot long capillary tube and a durable sensing bulb, the S1-129201 ensures responsive temperature feedback even in complex coil configurations. As a genuine York OEM replacement part, it is engineered for multi-refrigerant compatibility, including R-410A, R-22, and R-407C applications. This thermal expansion valve is essential for technicians performing HVAC system repairs who require exact factory specifications to restore factory-set SEER ratings and heat transfer efficiency. Its rugged construction provides long-term reliability in demanding environments without the risk of bypass leakage or mechanical binding common in aftermarket alternatives.
Key Benefits:- Precise Superheat Regulation: Modulates refrigerant flow dynamically to maintain the specific thermal balance required for peak evaporator performance.
- Multi-Refrigerant Versatility: Verified for use with R-410A TXV, R-22, and R-407C systems, streamlining inventory for diverse service calls.
- OEM Direct Fit: Eliminates the need for field modifications with exact 1/2 x 7/8 x 1/4 brazed or flare connections.
- Extended Reach: The 5-foot capillary lead allows for flexible sensing bulb placement, ensuring accurate readings on larger suction lines.
Is the S1-129201 compatible with R-410A systems?
Yes, this valve is rated for R-410A refrigerant as well as older R-22 and R-407C cooling systems, provided the pressure ratings match the equipment specifications.
What are the connection sizes for this York TXV?
The unit features a 1/2" inlet, a 7/8" outlet, and a 1/4" external equalizer line to allow for precise monitoring of evaporator pressure.
When should a technician replace the thermostatic expansion valve?
Replacement is necessary when the valve becomes "hunted," stuck open (causing flooding), or stuck closed (starving the evaporator), often indicated by improper superheat readings that cannot be corrected by charge adjustment.
This item is not eligible for free shipping.
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.
