Quiet Operation: Precision-balanced internal components reduce harmonic vibration and cabinet noise

ensuring a drop-in fit with zero field modifications required

The unit is rated IP65 / NEMA 4X

Universal Input Flexibility: Field-configurable 4-20mA

Lennox 18M40 TXV 322057-301 Quiet Operation: Precision-balanced internal componentsThe Lennox 18M40 TXV is a precision engineered thermostatic expansion valve (TXV) designed for high efficiency refrigerant metering in residential and light commercial HVAC systems. This OEM Lennox replacement part features a 3 8" x 1 2" ODF (Outside Diameter Female) solder connection, ensuring a leak resistant line set interface for technicians. Equipped with a 1 4" external equalizer and a 30 inch capillary tube, the 18M40 provides responsive