Lennox 49W62 Reversing Valve

The Lennox 49W62 Reversing Valve is a critical OEM replacement kit engineered for heat pump systems. This 24V reversing valve kit is the factory-authorized update for Lennox 603113-01 and incorporates a robust 4-way valve assembly designed to manage refrigerant flow direction with precision. For technicians troubleshooting loss of heating or cooling, this kit provides a definitive fix, eliminating the inconsistencies common with aftermarket solenoids. The package includes the 100145-09 reversing valve, a high-duty 24VAC solenoid coil (101813-01), and a pre-assembled wiring harness (100273-07). Utilizing genuine Lennox parts ensures proper seat pressure and slide movement within the valve body, preventing bypassing or sticking that can lead to compressor strain. This HVAC replacement part is essential for maintaining the operational integrity and SEER ratings of compatible Lennox heat pumps.

Key Benefits for Technicians:

• Direct OEM Swap: Replaces Lennox 603113-01 and 42W59 without field modifications to the mounting bracket.
• Complete Assembly: Includes the solenoid coil and wiring harness, reducing diagnostic time and installation labor.
• Industrial Build: Heavy-duty construction withstands the high-pressure demands of modern R-410A refrigerants.
• Optimized Performance: Precise 24V switching ensures seamless transitions between heating and cooling modes.

Common Questions:

Is the solenoid coil included with the 49W62 kit?
Yes, this is a comprehensive reversing valve kit that includes the 101813-01 24V solenoid coil and a factory-pinned wiring harness.

Will this valve work for both R-22 and R-410A Lennox units?
This Lennox 49W62 is designed to meet the pressure requirements of modern HP systems, but always verify the specific tonnage and port sizes of your unit before brazing.

How do I test if the reversing valve or the solenoid is failing?
Verify 24V signal at the coil. If the coil is energized but the valve does not shift, or if you detect a discharge-to-suction temperature delta indicating a leak-through, the reversing valve assembly requires replacement.

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.