Nordyne 664344R Check Valve 319847-401 tangle-free dispensing directly from the

tangle-free dispensing directly from the bag

This versatility is essential for managing complex sequencing in air handling units and terminal terminal unit applications

audible humming from the 208V coil

allowing for longer vent runs than traditional direct-vent configurations

Nordyne 664344R Check Valve 319847-401 tangle-free dispensing directly from theThe Nordyne 664344R is a high performance R410A 3 Ton TXV Check Valve designed for precise refrigerant metering in residential and light commercial HVAC systems. This OEM Nordyne replacement part acts as a critical thermal expansion device, sensing evaporator temperature and pressure to regulate flow and maintain the ideal superheat. Engineered for 3 ton capacity units, the 664344R check valve ensures consistent cooling performance and prevents