Nordyne 664348 Valve L99H008 Dual Safety Shutoff: Engineered with

Dual Safety Shutoff: Engineered with two solenoid-operated valves to ensure positive gas shutoff upon loss of power or flame signal

9°F hysteresis for tight environmental control

Ideal for maintenance or emergency repairs

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

Utilizing precision-cut materials

Nordyne 664348 Valve L99H008 Dual Safety Shutoff: Engineered withThe 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