The fail-safe direction (Normal Open or Normal Closed) is selectable via a simple switch under the housing cover

Durable Construction: Heavy-duty brass body prevents corrosion and extends service life in closed-loop systems

streamlining the diagnosis of F2

This 16x24 zone damper is built for heavy-duty cycling in demanding environments

Laars Heating Systems E2074502 Pressure Switch 322057-301 The fail-safe direction (Normal OpenThe Laars Heating Systems E2074502 Pressure Switch is an essential safety component engineered for precise airflow monitoring in Laars residential boilers and heating units. This technical grade air pressure switch is factory calibrated to a set point of 0. 4" WC (water column), providing reliable verification of inducer motor performance. Featuring a Single Pole Single Throw (SPST) configuration and standard 1 4" barb connections, this part ensures