this 2-way valve is designed to handle hot and chilled water

Pressure switches are safety devices calibrated to the specific venting and blower characteristics of the furnace

the direct-coupled mounting uses a push-button release mechanism

Enhanced System Safety: Prevents furnace ignition during loss of airflow or venting malfunctions

Trane SWT3073 Pressure Switch 322056-301 this 2-way valve is designedThe Trane SWT3073 Pressure Switch is an essential OEM replacement component for residential and light commercial gas fired furnaces. This SPDT (Single Pole Double Throw) air pressure switch is factory calibrated with a . 76" WC set point to monitor inducer motor airflow and verify appropriate negative pressure before allowing the ignition sequence to proceed. As a critical safety interlock, the Trane SWT03073 prevents unsafe operation by interrupting