Nordyne 664344R Check Valve 319847-401 Standardized Electrical: Utilizes 115V single-phase

Standardized Electrical: Utilizes 115V single-phase power

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

audible humming from the 208V coil

This unit supports a maximum working pressure of 175 psi and an operating temperature range of 33°F to 180°F

Nordyne 664344R Check Valve 319847-401 Standardized Electrical: Utilizes 115V single-phaseThe 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