Cleveland Controls NS2-1333-02 Pressure Switch 320735-701 the TCS Basys CQ1101 is

the TCS Basys CQ1101 is designed to work with any HVAC actuator that accepts a standard proportional 0-10V or 4-20mA input

While this S1-1PS0309 switch is a common solution for fault codes

This specific model (C1B) incorporates 1/8-inch panel standoffs and a standard 3-second time delay on decreasing levels to filter out nuisance trips caused by turbulence or surging

which delivers repeatable timing sequences and safe-start hardware checks

Cleveland Controls NS2-1333-02 Pressure Switch 320735-701 the TCS Basys CQ1101 isThe Cleveland Controls NS2 1333 02 Pressure Switch is a critical safety and operational component designed for high performance HVAC air pressure sensing. Engineered for residential and commercial furnaces, this differential air pressure switch monitors draft inducer performance to ensure proper combustion airflow before ignition. The NS2 1333 02 is factory set to precise specifications, featuring a sensitive diaphragm and snap acting SPST electrical