
York S1-1TVMBC1 TXV Kit
Maintaining precise refrigerant metering is critical for high-efficiency cooling, and the York S1-1TVMBC1 TXV Kit is the professional-grade solution for R-410A systems. This thermostatic expansion valve is engineered to regulate flow into the evaporator coil with exacting precision, ensuring optimal heat exchange while providing essential compressor protection against liquid slugging. Designed for 3.5 to 5-ton capacities, this York OEM replacement part features a 3/4-inch Chatleff connection for a secure, leak-free mechanical fit on compatible flex coils and air handlers.
For technicians performing a retrofit or repair, the S1-1TVMBC1 utilizes an internal check valve, making it fully compatible with both cooling-only and heat pump applications. Successful installation requires proper placement of the sensing bulb on a horizontal vapor line at the 10 o’clock or 2 o’clock position to ensure accurate superheat tracking. When installing this R410A TXV Kit in systems previously utilizing fixed orifices, always verify if a hard start kit is required per the outdoor unit’s technical data sheet to ensure reliable compressor startup under high head pressure.
- Universal HVAC Compatibility: Engineered for York, Source1, and Johnson Controls air handlers (including models AP, AE, and AVC) and CM/CF/CU evaporator coils.
- Enhanced System Efficiency: Optimizes subcooling and superheat levels to meet rated SEER performance standards.
- Complete Field Kit: Includes the bolt-on TXV body, 2.5 feet of thermal insulation, specialized bulb clamps, and a Teflon washer for a comprehensive HVAC expansion valve installation.
- Robust Mechanical Connection: The 3/4" Chatleff connector allows for easy bolt-on installation without the need for immediate brazing at the valve body, reducing the risk of internal heat damage.
Common Questions & Technical Support
How do I confirm if my TXV is underfeeding or overfeeding?
Check your superheat at the evaporator outlet. A properly functioning York S1-1TVMBC1 should maintain between 6°F and 14°F of superheat. If superheat is excessively high and subcooling is normal, the valve may be restricted or have lost its power head charge.
Is this TXV kit compatible with R-22 systems?
No, this kit is specifically calibrated for R-410A refrigerant. Using it with R-22 will result in improper metering and potential compressor failure due to different pressure-temperature relationships.
Does this kit include the required insulation for the sensing bulb?
Yes, the kit includes 2.5 feet of thermal insulation. It is vital to wrap the bulb completely after securing it to the suction line to prevent ambient air temperature from causing "hunting" or erratic valve behavior.
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.
York S1-1TVMBC1 TXV Kit
Maintaining precise refrigerant metering is critical for high-efficiency cooling, and the York S1-1TVMBC1 TXV Kit is the professional-grade solution for R-410A systems. This thermostatic expansion valve is engineered to regulate flow into the evaporator coil with exacting precision, ensuring optimal heat exchange while providing essential compressor protection against liquid slugging. Designed for 3.5 to 5-ton capacities, this York OEM replacement part features a 3/4-inch Chatleff connection for a secure, leak-free mechanical fit on compatible flex coils and air handlers.
For technicians performing a retrofit or repair, the S1-1TVMBC1 utilizes an internal check valve, making it fully compatible with both cooling-only and heat pump applications. Successful installation requires proper placement of the sensing bulb on a horizontal vapor line at the 10 o’clock or 2 o’clock position to ensure accurate superheat tracking. When installing this R410A TXV Kit in systems previously utilizing fixed orifices, always verify if a hard start kit is required per the outdoor unit’s technical data sheet to ensure reliable compressor startup under high head pressure.
- Universal HVAC Compatibility: Engineered for York, Source1, and Johnson Controls air handlers (including models AP, AE, and AVC) and CM/CF/CU evaporator coils.
- Enhanced System Efficiency: Optimizes subcooling and superheat levels to meet rated SEER performance standards.
- Complete Field Kit: Includes the bolt-on TXV body, 2.5 feet of thermal insulation, specialized bulb clamps, and a Teflon washer for a comprehensive HVAC expansion valve installation.
- Robust Mechanical Connection: The 3/4" Chatleff connector allows for easy bolt-on installation without the need for immediate brazing at the valve body, reducing the risk of internal heat damage.
Common Questions & Technical Support
How do I confirm if my TXV is underfeeding or overfeeding?
Check your superheat at the evaporator outlet. A properly functioning York S1-1TVMBC1 should maintain between 6°F and 14°F of superheat. If superheat is excessively high and subcooling is normal, the valve may be restricted or have lost its power head charge.
Is this TXV kit compatible with R-22 systems?
No, this kit is specifically calibrated for R-410A refrigerant. Using it with R-22 will result in improper metering and potential compressor failure due to different pressure-temperature relationships.
Does this kit include the required insulation for the sensing bulb?
Yes, the kit includes 2.5 feet of thermal insulation. It is vital to wrap the bulb completely after securing it to the suction line to prevent ambient air temperature from causing "hunting" or erratic valve behavior.
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
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Description
Maintaining precise refrigerant metering is critical for high-efficiency cooling, and the York S1-1TVMBC1 TXV Kit is the professional-grade solution for R-410A systems. This thermostatic expansion valve is engineered to regulate flow into the evaporator coil with exacting precision, ensuring optimal heat exchange while providing essential compressor protection against liquid slugging. Designed for 3.5 to 5-ton capacities, this York OEM replacement part features a 3/4-inch Chatleff connection for a secure, leak-free mechanical fit on compatible flex coils and air handlers.
For technicians performing a retrofit or repair, the S1-1TVMBC1 utilizes an internal check valve, making it fully compatible with both cooling-only and heat pump applications. Successful installation requires proper placement of the sensing bulb on a horizontal vapor line at the 10 o’clock or 2 o’clock position to ensure accurate superheat tracking. When installing this R410A TXV Kit in systems previously utilizing fixed orifices, always verify if a hard start kit is required per the outdoor unit’s technical data sheet to ensure reliable compressor startup under high head pressure.
- Universal HVAC Compatibility: Engineered for York, Source1, and Johnson Controls air handlers (including models AP, AE, and AVC) and CM/CF/CU evaporator coils.
- Enhanced System Efficiency: Optimizes subcooling and superheat levels to meet rated SEER performance standards.
- Complete Field Kit: Includes the bolt-on TXV body, 2.5 feet of thermal insulation, specialized bulb clamps, and a Teflon washer for a comprehensive HVAC expansion valve installation.
- Robust Mechanical Connection: The 3/4" Chatleff connector allows for easy bolt-on installation without the need for immediate brazing at the valve body, reducing the risk of internal heat damage.
Common Questions & Technical Support
How do I confirm if my TXV is underfeeding or overfeeding?
Check your superheat at the evaporator outlet. A properly functioning York S1-1TVMBC1 should maintain between 6°F and 14°F of superheat. If superheat is excessively high and subcooling is normal, the valve may be restricted or have lost its power head charge.
Is this TXV kit compatible with R-22 systems?
No, this kit is specifically calibrated for R-410A refrigerant. Using it with R-22 will result in improper metering and potential compressor failure due to different pressure-temperature relationships.
Does this kit include the required insulation for the sensing bulb?
Yes, the kit includes 2.5 feet of thermal insulation. It is vital to wrap the bulb completely after securing it to the suction line to prevent ambient air temperature from causing "hunting" or erratic valve behavior.
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.












