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The Johnson Controls P74FA-1C is a differential pressure control designed for various HVAC applications. It features SPDT configuration with 1/4 inch female fittings. This product is suitable for monitoring operating conditions and indicating functions via display lights. Its applications include measuring the pressure difference across two sensing elements in systems carrying air, oil, or liquid.
The P74FA-1C helps maintain system efficiency by signaling flow changes and pressure drops. It is commonly used in chillers, refrigeration compressors, and heating or cooling coils.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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