Description
Trane SWT03220 SPST Pressure Switch Pilot Duty control component used in HVAC systems for monitoring air or pressure conditions within duct or piping assemblies. It operates at 24/28VA and is calibrated for a 1.29″ water column setting, allowing electrical switching when pressure reaches a defined threshold. The system is commonly placed in an air handling units, furnaces, and ventilation equipment where pressure feedback is required for system sequencing and safety interlocks. It is positioned within control circuits to initiate or interrupt electrical signals based on pressure changes in commercial HVAC applications.
