Cleveland Controls AFS-A Air Pressure Sensing Switch W/Adjustable Range

The Cleveland Controls AFS-A Air Pressure Sensing Switch is highly flexible and dependable used to detect and regulate airflow in HVAC systems. It functions by measuring a change in the pressure in a selected duct or plenum. The switch features an adjustable pressure setpoint that can be set to the requisite system pressure level so that the system can be set according to its needs. When the pressure in the system drops below a set level the switch can sound an alarm turn on a improveer fan or send out a maintenance signal. On the other hand, when the pressure is betterer than the setpoint the switch may indicate a blockage or a problem with the system.