Johnson Controls P74AA-1 Pressure Control 321894-708 this series utilizes an internal

this series utilizes an internal supercapacitor or equivalent technology and non-volatile memory to maintain the 7-day schedule and system parameters without a battery

the switch triggers an alarm

supporting a maximum inlet pressure of up to 60 psig

Excessive heat can warp the internal sliding mechanism

Featuring a stainless steel power element and a laser-welded diaphragm

Johnson Controls P74AA-1 Pressure Control 321894-708 this series utilizes an internalThe Johnson Controls P74AA 1 is a robust differential pressure control designed primarily for monitoring lube oil pressure in high performance refrigeration compressors. This SPST switch is engineered to close on a decrease in pressure difference, providing a critical safety cut out to prevent mechanical failure. It features a wide adjustable range from 8 to 70 psi, with a manageable switch differential of 8 to 30 psi. Built for durability in