Emerson Alco 066662 TXV L99H008 this valve is internally calibrated

this valve is internally calibrated and ported specifically for R-410A pressure-temperature logic

ensuring electrical and mechanical alignment without manifold modification

provided the correct LP orifices and spring transitions are installed according to the manufacturer's manifold pressure requirements

those components must be salvaged or ordered separately

When troubleshooting a blower that refuses to activate or fails to shut off

Emerson Alco 066662 TXV L99H008 this valve is internally calibratedThe Emerson Alco 066662 is a professional grade R410A 3 ton TXV designed for precise refrigerant metering in residential and light commercial air conditioning systems. This externally equalized thermal expansion valve features a straight body configuration with 3 8" x 1 2" sweat connections, ensuring a reliable seal in high pressure environments. Engineered for versatility, the 066662 kit includes Chatleff and Aeroquip adapters, making it an essential