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optimized for R22 and R410A refrigerant systems
the control board may be grounded out or defective
Designed for mission-critical refrigeration and high-pressure HVAC systems
Direct OEM Compatibility: Verified as the functional upgrade and successor to the Aaon P97420 pressure switch
Lennox 78M25 Reversing Valve R-410A optimized for R22 and R410AThe Lennox 78M25 Reversing Valve is a critical OEM component designed for high performance heat pump systems, facilitating the essential transition between heating and cooling modes. As a direct replacement for the Lennox 78M2501, this 4 way pilot operated valve ensures precise refrigerant flow reversal, maintaining system efficiency in both residential and light commercial applications. Engineered for Lennox HVAC systems, the 78M25 utilizes a sliding
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