it is the specified OEM replacement for the listed cross-references

Common Questions: Will this work with the McDonnell & Miller 51-2 model

or burner cutout circuits

extending the life of pumps and contactors

Nordyne 669684R TXV 340793-762 it is the specified OEMAs a technician, you know that maintaining precise superheat is non negotiable for system longevity, and the Nordyne 669684R TXV is the specified OEM component for 4 ton R410A evaporator coils. This thermostatic expansion valve (TR6 series) is engineered to replace older Danfoss or Nortek models, providing the accurate refrigerant metering required to prevent liquid slugging and ensure optimal heat transfer across the A coil. Whether you are servicing