Operating at speeds up to 1140 RPM

Look for signs of water staining or white "crusty" deposits (calcification) around the edges of the plastic collector box or underlying components

closing the circuit only when the diaphragm detects the required vacuum or pressure threshold

Durable Construction: Built to withstand high ambient temperatures at the pilot head without rapid degradation of the dissimilar metals

By accurately monitoring microamp signals

Johnson Controls P74EA-8 Pressure Control Freon Operating at speeds up toThe Johnson Controls P74EA 8 is a heavy duty Differential Pressure Control engineered specifically for monitoring oil pressure or fluid flow within commercial HVACR refrigeration systems. This SPDT snap acting switch provides a highly reliable adjustable pressure differential range of 2 to 26 psi, featuring a 3. 5 psi fixed switch differential for precise cycling. Designed with durable brass bellows and a 36 inch capillary with 1 4 inch flare nut, it