Pay in 4 interest-free payments of $29.43 Learn more
Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
this valve facilitates tiered heating—low-fire and high-fire stages—to optimize combustion efficiency and temperature stability
it features a 5-second Trial for Ignition (TFI) and a 5-second ignitor heat-up period to ensure stable combustion
it functions as a critical HVAC control component by translating electrical signals into mechanical positioning for zone dampers or combustion air intakes
Key Benefits High-Flow Efficiency: Supports up to 1
Nordyne 664350 TXV Valve 320720-756 this valve facilitates tiered heating—low-fireThe Nordyne 664350 is a high performance 4 ton R410A thermostatic expansion valve engineered for precise refrigerant metering in residential and light commercial split system evaporators. This genuine OEM component is designed to maintain target superheat across varying load conditions, protecting the compressor from liquid slugging while maximizing heat transfer efficiency. As a direct replacement for Nordyne 664350R, it features a balanced port
US$ 114.99
US$ 597.50