System Sensor EPS40-1 Pressure Control 30067439-890 This HVAC differential pressure switch

This HVAC differential pressure switch is essential for technicians performing rapid diagnostics on Utica boilers or resolving "pressure switch stuck open" errors

it is compatible with chilled or hot water systems containing up to 60% glycol

maintaining sensitivity for precise thermal response

Direct OEM Fitment: Eliminates the need for field modifications or bracket drilling in Aaon cabinets

Durable Construction: Built for the demanding environments of industrial make-up air heating and direct-fired equipment

System Sensor EPS40-1 Pressure Control 30067439-890 This HVAC differential pressure switchThe System Sensor EPS40 1 is a heavy duty low pressure supervisory pressure switch engineered specifically for dry pipe fire sprinkler systems, pressure tanks, and automatic water control valve supplies. This professional grade supervisory pressure switch features a field adjustable range from 10 to 100 PSI, factory preset to activate at 30 PSI on decreasing pressure to alert teams of critical system pressure drops. Built with a NEMA 4 rated