What causes this pressure switch to trip

This robust pneumatic valve actuator features an 8 to 13 psi spring range

Designed for high reliability in residential HVAC systems

Broad Actuator Compatibility: Integrates with common Belimo LMB(X)

this Series 800 trap is engineered to handle a maximum allowable pressure (PMA) of 250 psig

York S1-7680-3591 Limit Switch 322838-752 What causes this pressure switchThe York S1 7680 3591 Limit Switch is a critical safety component designed for high limit thermal protection in residential heating systems. As a professional grade L155 20F auto limit switch, this unit is calibrated to open the electrical circuit at 155F and features an automatic reset with a 20 degree differential, closing back at 135F. This specific model serves as the factory authorized successor to the York 300609025, ensuring seamless backwards