Nordyne 664275R TXV 318973-401 and oil degradation products—harmful substances

and oil degradation products—harmful substances that standard molecular sieve cores often bypass

making it compatible with most modern HVAC control circuits

allowing technicians to fine-tune the trip point via a precision trimmer to match specific load requirements

heat pump signals

Nordyne 664275R TXV 318973-401 and oil degradation products—harmful substancesThe Nordyne 664275R TXV is a critical N Series thermal expansion valve engineered specifically for 5 ton packaged units. Designed for R410A refrigerant, this OEM component provides precise metering to maintain the correct superheat across the evaporator coil, preventing liquid slugging and ensuring compressor longevity. As a direct Nordyne replacement part, it eliminates the compatibility issues often found with universal aftermarket valves,