Lennox 10M23 Service Valve 321894-708 It requires a minimum 5

It requires a minimum 5 PSI pressure differential across the inlet and outlet to actuate the diaphragm correctly

Durable Construction: Features high-grade insulation to prevent dielectric breakdown during continuous duty

The "Hold Open" switch allows the technician to keep the damper open during maintenance or startup without the burner being energized

ensuring underlying airflow issues are addressed

Lennox 10M23 Service Valve 321894-708 It requires a minimum 5The Lennox 10M23 Service Valve is a critical OEM replacement part designed for technicians performing HVAC repair and maintenance on high performance residential cooling systems. This 3 8 inch service valve facilitates precise refrigerant flow control and allows for system isolation during leak testing or component swaps without a full charge recovery. Built for compatibility with the Lennox 14ACX and XC13 series, the 10M23 features a robust, leak