Trane SWT2522 SPST Normally Closed Pressure Switch
The Trane SWT2522 SPST Normally Closed Pressure Switch is a safety control device designed to monitor air or gas pressure within HVAC systems. It operates by remaining closed under normal conditions and opens when pressure levels fall outside the set range, interrupting the circuit to prevent unsafe operation. Commonly used in furnaces and air handlers, it ensures proper airflow and combustion performance. This switch enhances system safety, protects critical components, and improves reliability by preventing damage caused by pressure irregularities or airflow blockages.