Johnson Controls P70SA-1 Pressure Control Els PW 17895 Always verify transformer output before

Always verify transformer output before installation to prevent damage to the solid-state board

Common points of failure include internal blockages from secondary heat exchanger debris or cracked housings due to freezing during winter power outages

If installing the damper vertically

Its precise calibration helps maintain system efficiency and longevity

significantly reducing nuisance service calls during cold starts

Johnson Controls P70SA-1 Pressure Control Els PW 17895 Always verify transformer output beforeThe Johnson Controls P70SA 1 is a professional grade Dual Pressure Control designed for heavy duty commercial refrigeration and air conditioning systems. This robust unit utilizes two independent SPDT switches to monitor both the high and low sides of your refrigerant circuit, providing comprehensive compressor protection in a single NEMA 1 enclosure. The low side range spans from 12 in. Hg to 80 psi with a 5 to 50 psi adjustable differential, while