Description
The Cleveland Controls NS2-0291-00 Air Flow Pressure Sensing Switch is an essential part of the HVAC systems used to monitor and control airflow in air ducts. This part can measure changes in pressure within the ducts and give feedback to the HVAC controlling system. It works by taking the differential pressure across an orifice plate or any other restriction installed in the duct. An exact correlation is observed between this pressure differential and the velocity of the airflow. This switch contains a delicate structure that can measure changes in this pressure and produces an electrical signal when a specific level is attained.
