this HVAC vacuum switch is the primary solution for resolving pressure switch lockout codes

also identified as the PSC-W6S Pressure Switch

Compact Integration: The right-angle bracket design allows for stable mounting in confined ductwork and air handling units

Using OEM-spec Honeywell 46187045-050 ensures optimal pen tracking and prevents jitter or bleeding during high-speed reporting intervals

A: The Berko 410127001 is designed for 277V electric heating systems

Advanced Distributor Products 76739700 Limit Switch 328140-751 this HVAC vacuum switch isThe Advanced Distributor Products 76739700 Limit Switch is a critical safety component engineered for ADP series heating units and unit heaters. This high precision HVAC limit control, specifically the L175 30F model, is designed to monitor and regulate internal temperatures to prevent equipment overheating. Operating within a 110 120V range, this thermal limit switch features a 175F opening (cut out) temperature and a 145F closing (cut in)