the York S1-324-40874-003 is a programmed unit that comes with factory-loaded firmware specific to its intended HVAC models

Featuring a 3/8" x 3/8" connection

meaning the spring return will drive the valve to the closed position upon loss of power

Common Technical Questions: What is the difference between Watts 0382589 and 740-1-40

Drop-in Compatibility: Designed for standard mounts

Trane VAL8057 Expansion Valve R-410A the York S1-324-40874-003 is aThe Trane VAL8057 Expansion Valve is a critical thermostatic control component designed for 5 ton residential and light commercial HVAC systems. Engineered specifically for R 410A refrigerant applications, this genuine OEM TXV facilitates precise refrigerant metering to maintain a consistent 57. 2 degree superheat across varying load conditions. It features a durable brass body construction and utilizes a non bleed design, ensuring high side to low