Cleveland Controls FS-BO-178 Proving Switch Els PW 17895 verify the hose orientation and

verify the hose orientation and slope during installation to maintain the liquid seal balance

Rapid Installation: Includes 6-inch color-coded 18 AWG leads and a locking nut for fast integration into standard conduit bodies or weatherproof boxes

This unit features a standard 1/2" NPT lower mount connection

Built for high-torque applications where precision is non-negotiable

the blower will run continuously

Cleveland Controls FS-BO-178 Proving Switch Els PW 17895 verify the hose orientation andThe Cleveland Controls FS BO 178 is a heavy duty, factory calibrated air flow proving switch designed for critical monitoring in duct heaters, ovens, and sophisticated HVAC energy management systems. This model features a precise, non adjustable set point of 0. 05" w. c., ensuring consistent actuation on positive pressure rise without the risk of field tampering. Built with a rugged plated housing and a high performance silicone diaphragm, the FS BO