Description
The Cleveland Controls NS2-1585-03 Pressure Switch is a differential air pressure sensing component used in compatible heating and cooling systems to verify proper airflow conditions during operation. Installed in HVAC systems it responds to changes in pressure created by the inducer fan or blower by opening or closing an electrical circuit when set thresholds are reached. It is commonly used in residential and light commercial furnace applications where safe system sequencing depends on confirmed air flow through combustion or venting passages. The airflow verification enables control logic to proceed with ignition or operation stages and helps maintain stable system.
