York S1-025-35388-002 Reversing Valve 30067439-890 Standard industry practice requires replacing

Standard industry practice requires replacing this seal every time the oil filter is accessed or during annual inspection to prevent compression set leaks

Extended Compressor Life: Reduces thermal load on the compressor

While some control modules are rated for 208/240V input

The motor is rated for Clockwise Opposite Shaft End (CWOSE) rotation

Vandalism Resistance: Robust locking thermostat cover prevents unauthorized setpoint changes in schools

York S1-025-35388-002 Reversing Valve 30067439-890 Standard industry practice requires replacingTesting and replacing a failed York S1 025 35388 002 Reversing Valve is a standard yet critical task for maintaining heat pump efficiency. This OEM York reversing valve is a 4 way pilot operated component designed to switch refrigerant flow between heating and cooling modes in R 410A and R 22 systems. It comes equipped with a 24V solenoid coil (50 60Hz), eliminating the need to source a separate actuator. When you encounter a heat pump stuck in one