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at which point it automatically resets
this valve is optimized for handling air
Answer: Cross-reference the part number located on your current switch
Built to Carrier HVAC standards
Johnson Controls P74HA-14 Pressure Control 30067439-890 at which point it automaticallyThe Johnson Controls P74HA 14 is a professional grade differential pressure control designed for heavy duty HVACR applications, including chiller proof of flow and compressor lube oil pressure sensing. This rugged controller features a specialized switch action where the main contacts close on differential increase while the separate auxiliary contacts open, making it ideal for simultaneous equipment operation and status signaling. Built with a robust
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