
Trane VAL11798 TXV
The Trane VAL11798 is a professional-grade 3-ton thermal expansion valve (TXV) designed for precise refrigerant metering in high-efficiency R410A air conditioning and heat pump systems. Featuring a Chatleff connection and an integrated 0.15 bleed port, this valve facilitates smoother compressor start-ups by equalizing pressure across the system during the off-cycle. Engineered as an OEM replacement part for Trane and American Standard equipment, it maintains optimal superheat and prevents liquid slugging, ensuring proper evaporator coil flooding and stable performance. With an operating pressure rating of 82 to 130 psi and the high-pressure capabilities required for R410A cycles, the VAL11798 is the standard for technicians performing repairs on 3-ton residential units. When original inventory is unavailable, the Trane VAL21623 serves as the direct technical successor for this model.
Key Benefits for Technicians:- System Stability: The 15% bleed port design assists reciprocating and scroll compressors by equalizing high and low-side pressures swiftly.
- Drop-in Compatibility: Features standard 3/4 inch female inlet and 7/8 inch SAE outlet connections for rapid installation in existing air handlers.
- Refrigerant Control: Specifically calibrated for R410A systems to protect against frozen evaporator coils and compressor overheating.
- Genuine OEM Build: Manufactured to meet the rigid specifications of 3-ton Trane hvac systems, reducing call-backs and ensuring thermal accuracy.
Is the VAL11798 compatible with older Refrigerant 22 systems?
No. This TXV is specifically engineered for R410A refrigerant and its higher operating pressure requirements. It is not suitable for R22 applications.
Does this valve require an external equalizer?
As a Chatleff TXV designed for modern evaporator coils, it functions as a primary metering device; however, always verify the specific coil’s internal plumbing and look for the VAL11798 supersession if updating older units.
What are the symptoms of a failing Trane TXV?
Common indicators include inconsistent airflow temperatures, a frozen evaporator coil, or a compressor that cycles frequently due to improper refrigerant modulation.
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 VAL11798 TXV
The Trane VAL11798 is a professional-grade 3-ton thermal expansion valve (TXV) designed for precise refrigerant metering in high-efficiency R410A air conditioning and heat pump systems. Featuring a Chatleff connection and an integrated 0.15 bleed port, this valve facilitates smoother compressor start-ups by equalizing pressure across the system during the off-cycle. Engineered as an OEM replacement part for Trane and American Standard equipment, it maintains optimal superheat and prevents liquid slugging, ensuring proper evaporator coil flooding and stable performance. With an operating pressure rating of 82 to 130 psi and the high-pressure capabilities required for R410A cycles, the VAL11798 is the standard for technicians performing repairs on 3-ton residential units. When original inventory is unavailable, the Trane VAL21623 serves as the direct technical successor for this model.
Key Benefits for Technicians:- System Stability: The 15% bleed port design assists reciprocating and scroll compressors by equalizing high and low-side pressures swiftly.
- Drop-in Compatibility: Features standard 3/4 inch female inlet and 7/8 inch SAE outlet connections for rapid installation in existing air handlers.
- Refrigerant Control: Specifically calibrated for R410A systems to protect against frozen evaporator coils and compressor overheating.
- Genuine OEM Build: Manufactured to meet the rigid specifications of 3-ton Trane hvac systems, reducing call-backs and ensuring thermal accuracy.
Is the VAL11798 compatible with older Refrigerant 22 systems?
No. This TXV is specifically engineered for R410A refrigerant and its higher operating pressure requirements. It is not suitable for R22 applications.
Does this valve require an external equalizer?
As a Chatleff TXV designed for modern evaporator coils, it functions as a primary metering device; however, always verify the specific coil’s internal plumbing and look for the VAL11798 supersession if updating older units.
What are the symptoms of a failing Trane TXV?
Common indicators include inconsistent airflow temperatures, a frozen evaporator coil, or a compressor that cycles frequently due to improper refrigerant modulation.
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 VAL11798 is a professional-grade 3-ton thermal expansion valve (TXV) designed for precise refrigerant metering in high-efficiency R410A air conditioning and heat pump systems. Featuring a Chatleff connection and an integrated 0.15 bleed port, this valve facilitates smoother compressor start-ups by equalizing pressure across the system during the off-cycle. Engineered as an OEM replacement part for Trane and American Standard equipment, it maintains optimal superheat and prevents liquid slugging, ensuring proper evaporator coil flooding and stable performance. With an operating pressure rating of 82 to 130 psi and the high-pressure capabilities required for R410A cycles, the VAL11798 is the standard for technicians performing repairs on 3-ton residential units. When original inventory is unavailable, the Trane VAL21623 serves as the direct technical successor for this model.
Key Benefits for Technicians:- System Stability: The 15% bleed port design assists reciprocating and scroll compressors by equalizing high and low-side pressures swiftly.
- Drop-in Compatibility: Features standard 3/4 inch female inlet and 7/8 inch SAE outlet connections for rapid installation in existing air handlers.
- Refrigerant Control: Specifically calibrated for R410A systems to protect against frozen evaporator coils and compressor overheating.
- Genuine OEM Build: Manufactured to meet the rigid specifications of 3-ton Trane hvac systems, reducing call-backs and ensuring thermal accuracy.
Is the VAL11798 compatible with older Refrigerant 22 systems?
No. This TXV is specifically engineered for R410A refrigerant and its higher operating pressure requirements. It is not suitable for R22 applications.
Does this valve require an external equalizer?
As a Chatleff TXV designed for modern evaporator coils, it functions as a primary metering device; however, always verify the specific coil’s internal plumbing and look for the VAL11798 supersession if updating older units.
What are the symptoms of a failing Trane TXV?
Common indicators include inconsistent airflow temperatures, a frozen evaporator coil, or a compressor that cycles frequently due to improper refrigerant modulation.
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.












