Dwyer Instruments 1950-20-2F Pressure Switch 340793-762 Improper seating can prevent the

Improper seating can prevent the interlock switch from closing the 24V circuit

simplifying the piping for standard commercial refrigeration installations

You must reuse your existing blower housing or purchase one separately if the current casing is compromised

Technicians should look for cracked ceramic insulators

Dwyer Instruments 1950-20-2F Pressure Switch 340793-762 Improper seating can prevent theThe Dwyer Instruments 1950 20 2F Pressure Switch is a trade standard solution for monitoring differential pressure in hazardous locations. Engineered as an explosion proof alternative to the Series 1900, this unit integrates a weatherproof housing that meets NEMA 3, 7, and 9 ratings. With an adjustable range of 4 to 20" w. c. and a tight deadband of 0. 40 to 0. 60, it provides precise control for HVAC systems, fan proof of flow, and filter monitoring.