These notches allow the belt to operate efficiently around smaller sheave diameters while maintaining a consistent 98% energy efficiency rating

preventing blade warping or separation

A higher voltage rating like 440Vac is always acceptable for lower voltage systems as it provides a higher safety margin against voltage spikes

this unit provides the industrial-grade quality required for critical system uptime and automated flow regulation

Lennox 12J20 TXV Kit Els PW 17895 These notches allow the beltThe Lennox 12J20 TXV Kit is a critical OEM component for maintaining precise superheat control in high capacity residential and light commercial systems. Engineered for 3. 5 to 5 ton R410A air conditioning units, this kit features the high performance Danfoss 067U3416 thermostatic expansion valve. Designed to regulate refrigerant flow with extreme accuracy, the 12J20 expansion valve prevents compressor liquid slugging while maximizing evaporator