Description
The Cleveland Controls NS2-1189-00 Air Pressure Switch is an essential sensing and control component used to monitor conditions within equipment units. It detects positive, negative, or differential air pressure and an electrical switching action when a preset level is reached, supporting proper airflow verification and system safety in HVAC systems. Commonly installed in commercial and industrial applications, it supports ensuring that fans, burners, or ventilation components operate only under correct conditions. As part of the control circuit, it contributes to accurate system performance and protection against improper airflow or pressure faults.









