Trane VAL12203 Reversing Valve 0.875X0.875" ODF

The Trane VAL12203 is a reversing valve that is meant to be used only in heat pump applications. This valve is critical to generating a heat pump that is capable of heating as well as cooling an enclosed room. It measures 7.5” in height and 8.25” in width, thus it is quite small but useful element. It allows the heat pump to change between producing heat within your home during heating mode and removing heat from the air during cooling mode by changing the direction of the refrigerant through the system. There is an electromagnetic coil, or solenoid, inside the valve to control this change of refrigerant flow direction.