Description
The York S1-031-09151-000 4-Stage Expansion Control Board is a key part of the advanced control of HVAC systems. This control board is designed to operate at 24V AC and is specifically engineered to handle up to four stages of heating or cooling and is suitable for complex or multi zone HVAC applications. This control board controls the sequence and operation of several stages of heating or cooling equipment. It takes the information from various sensors and thermostats inside the system and activates the appropriate stages of the HVAC system.
