Nordyne 669821 TXV Valve 321702-401 it features an enclosed motor

it features an enclosed motor housing to protect internal windings from moisture and debris

DPDT Configuration: Allows for the simultaneous switching of two separate circuits from a single 120V control signal

maintaining the optimal superheat required for system stability

The Lennox 50M18 Ring

Dual SPDT Snap Switches: Provides independent control for high-voltage burner shutdown and automatic water feeder activation

Nordyne 669821 TXV Valve 321702-401 it features an enclosed motorThe Nordyne 669821 TXV Valve is an OEM 4 ton R410A expansion valve engineered for precise refrigerant metering in high capacity split systems and packaged units. As a direct replacement for Nortek 669821R, this thermostatic expansion valve regulates flow based on evaporator load, ensuring optimal superheat levels and preventing liquid slugging in the compressor. For technicians servicing 48,000 BTU cooling systems, this Nordyne HVAC part provides the