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an "OL" or high-resistance reading indicates a hairline crack
The Johnson Controls P20CA-75 Pressure Control is a professional-grade air conditioning limit switch designed for critical pressure monitoring in HVACR systems
we recommend inspections every 6 months
engineered for high-accuracy flame rectification in industrial and commercial heating applications
Johnson Controls P170EA-14 Pressure Controller 30067439-890 an "OL" or high-resistance readingThe Johnson Controls P170EA 14 is a professional grade low pressure controller designed for precise pump down control and low pressure cut out in commercial refrigeration and HVAC systems. Engineered with a NEMA 1 enclosure, this unit offers a functional range from 12" W. C. to 80 psi, making it a versatile choice for monitoring low side system pressures. One of the standout features for technicians is the adjustable differential, which can be tuned
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