Nordyne 664348 Valve L99H008 It features a 32-second prepurge

It features a 32-second prepurge and field-selectable DIP switches that allow technicians to precisely match trial counts (1 or 3 trials) and ignition trial times (4 or 7 seconds) to the original equipment specifications

System Stability: Maintains consistent liquid line pressure to ensure reliable compressor oil return and cooling capacity

9°F hysteresis for tight environmental control

Specifically used with Thermostatic Expansion Valves (TEVs)

Standardized Connections: The 1/4" barb connection simplifies field replacement and ensures a leak-free seal with existing pneumatic lines

Nordyne 664348 Valve L99H008 It features a 32-second prepurgeThe Nordyne 664348 is a heavy duty TR6 R410A TXV Outdoor Valve specifically engineered for 4 ton residential and commercial condenser units. As a veteran grade thermostatic expansion valve, this component provides critical refrigerant flow control by monitoring the superheat at the evaporator outlet. By adjusting the orifice opening in real time, it optimizes heat exchange efficiency and prevents liquid slugging, protecting the compressor from