Dwyer Instruments 1950-20-2F Pressure Switch 320720-756 Equipped with a resilient Buna-N

Equipped with a resilient Buna-N seat

the heater is energized through a set of auxiliary contacts when the compressor is idle and de-energized via the contactor once the system starts

it is designed to work with the standard run capacitor specified in your service manual

This model is rated for an operating temperature range of -40°F to 210°F (-40°C to 100°C)

Dwyer Instruments 1950-20-2F Pressure Switch 320720-756 Equipped with a resilient Buna-NThe 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.