
Lennox 34W44 Reversing Valve
The Lennox 34W44 Reversing Valve w/Coil is a critical OEM replacement component designed to regulate refrigerant flow direction in residential and commercial heat pump systems. Engineered for precision, this 4-way reversing valve utilizes a 24V solenoid coil (50/60Hz) to manage the shift between heating and cooling cycles. With a 1/2" x 3/4" configuration, the 34W44 is a direct drop-in for Lennox 100145-07 and cross-references with several Allied, Armstrong, and Ducane part numbers, including 70M04 and 95M91.
This valve features a rugged brass body and stainless-steel internals, ensuring high durability against the mechanical stresses of frequent switching. It is rated for a maximum operating pressure (M.O.P.) of 4.69mPa, making it compatible with high-pressure refrigerants like R-410A as well as R-22 and R-407C. For the technician in the field, this HVAC reversing valve provides the necessary pilot-operated shift required to maintain system efficiency and prevent internal bypass leaks that can lead to compressor overheating.
Key Benefits for Technicians:- Broad Compatibility: Fits over 120 Lennox-family models, serving as a versatile heat pump reversing valve replacement.
- Integrated Solenoid: Includes the 24VAC coil, streamlining the installation process and ensuring electrical matched-component reliability.
- Optimized Performance: Engineered for a tight shut-off to minimize energy loss and prevent suction-to-discharge pressure bleeding.
- Compact Footprint: Designed for easy access and soldering within the tight confines of the outdoor unit's compressor section.
- How do I troubleshoot a stuck 34W44 valve? Verify a pressure differential of 30-70 PSI exists. If the 24V coil is energized and magnetized but the slide fails to shift, the valve may be physically stuck or have contaminated capillaries.
- Can I replace just the coil? Yes, if the solenoid is open-circuit (O ohms) but the internal slide moves freely, the coil can be replaced independently to restore function.
- What are the signs of an internal leak? A temperature difference greater than 3°F between the evaporator suction line and the permanent suction line often indicates an internal seat failure.
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: $87.99
-65%$87.99
$30.80Lennox 34W44 Reversing Valve
The Lennox 34W44 Reversing Valve w/Coil is a critical OEM replacement component designed to regulate refrigerant flow direction in residential and commercial heat pump systems. Engineered for precision, this 4-way reversing valve utilizes a 24V solenoid coil (50/60Hz) to manage the shift between heating and cooling cycles. With a 1/2" x 3/4" configuration, the 34W44 is a direct drop-in for Lennox 100145-07 and cross-references with several Allied, Armstrong, and Ducane part numbers, including 70M04 and 95M91.
This valve features a rugged brass body and stainless-steel internals, ensuring high durability against the mechanical stresses of frequent switching. It is rated for a maximum operating pressure (M.O.P.) of 4.69mPa, making it compatible with high-pressure refrigerants like R-410A as well as R-22 and R-407C. For the technician in the field, this HVAC reversing valve provides the necessary pilot-operated shift required to maintain system efficiency and prevent internal bypass leaks that can lead to compressor overheating.
Key Benefits for Technicians:- Broad Compatibility: Fits over 120 Lennox-family models, serving as a versatile heat pump reversing valve replacement.
- Integrated Solenoid: Includes the 24VAC coil, streamlining the installation process and ensuring electrical matched-component reliability.
- Optimized Performance: Engineered for a tight shut-off to minimize energy loss and prevent suction-to-discharge pressure bleeding.
- Compact Footprint: Designed for easy access and soldering within the tight confines of the outdoor unit's compressor section.
- How do I troubleshoot a stuck 34W44 valve? Verify a pressure differential of 30-70 PSI exists. If the 24V coil is energized and magnetized but the slide fails to shift, the valve may be physically stuck or have contaminated capillaries.
- Can I replace just the coil? Yes, if the solenoid is open-circuit (O ohms) but the internal slide moves freely, the coil can be replaced independently to restore function.
- What are the signs of an internal leak? A temperature difference greater than 3°F between the evaporator suction line and the permanent suction line often indicates an internal seat failure.
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 Lennox 34W44 Reversing Valve w/Coil is a critical OEM replacement component designed to regulate refrigerant flow direction in residential and commercial heat pump systems. Engineered for precision, this 4-way reversing valve utilizes a 24V solenoid coil (50/60Hz) to manage the shift between heating and cooling cycles. With a 1/2" x 3/4" configuration, the 34W44 is a direct drop-in for Lennox 100145-07 and cross-references with several Allied, Armstrong, and Ducane part numbers, including 70M04 and 95M91.
This valve features a rugged brass body and stainless-steel internals, ensuring high durability against the mechanical stresses of frequent switching. It is rated for a maximum operating pressure (M.O.P.) of 4.69mPa, making it compatible with high-pressure refrigerants like R-410A as well as R-22 and R-407C. For the technician in the field, this HVAC reversing valve provides the necessary pilot-operated shift required to maintain system efficiency and prevent internal bypass leaks that can lead to compressor overheating.
Key Benefits for Technicians:- Broad Compatibility: Fits over 120 Lennox-family models, serving as a versatile heat pump reversing valve replacement.
- Integrated Solenoid: Includes the 24VAC coil, streamlining the installation process and ensuring electrical matched-component reliability.
- Optimized Performance: Engineered for a tight shut-off to minimize energy loss and prevent suction-to-discharge pressure bleeding.
- Compact Footprint: Designed for easy access and soldering within the tight confines of the outdoor unit's compressor section.
- How do I troubleshoot a stuck 34W44 valve? Verify a pressure differential of 30-70 PSI exists. If the 24V coil is energized and magnetized but the slide fails to shift, the valve may be physically stuck or have contaminated capillaries.
- Can I replace just the coil? Yes, if the solenoid is open-circuit (O ohms) but the internal slide moves freely, the coil can be replaced independently to restore function.
- What are the signs of an internal leak? A temperature difference greater than 3°F between the evaporator suction line and the permanent suction line often indicates an internal seat failure.
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.












