York S1-6421651 2-Stage Circuit Board

The York S1-6421651 2-Stage Circuit Board is an essential component of York’s HVAC systems. It is a printed circuit board used to regulate two-stage ON/OFF heating or cooling systems. This board is responsible for the coordination of different system elements, and the time at which they are functioning. The circuit board is designed to accurately regulate the functioning of the stages in the system to provide a comfortable temperature indoors while using less energy. This also plays a role in the maximum durability of York HVAC systems.