Daikin-McQuay 047356111 Pressure Control

The Daikin-McQuay 047356111 Low Pressure Control is a critical safety component engineered for precision refrigerant monitoring in commercial HVAC equipment. As a technician-grade OEM replacement part, this pressure switch is specifically designed for integration with Daikin RoofPak single-zone rooftop units and various industrial heating and cooling systems. Operating within a specialized 35-60 PSI range, the 047356111 functions by detecting low-side pressure drops and immediately interrupting the compressor circuit to prevent mechanical failure due to refrigerant loss or coil freeze-up.

Built for the rigors of field use, this 240V low pressure switch features a robust miniature pressure control housing and comes equipped with an adapter for simplified installation. It serves as a direct cross-reference for legacy part numbers including 473561B-11, 20PS022MJ060E035D, and MG20-1421. By maintaining tight low-pressure trip tolerances, this control ensures high-side and low-side stability, extending the lifespan of the compressor and optimizing overall system performance in demanding environments.

• Direct OEM Compatibility: Verified for use in Daikin-McQuay RoofPak units, ensuring perfect fit and factory-spec electrical termination.
• Compressor Protection: Proactively interrupts the 240V control circuit during low-pressure events (35-60 PSI) to mitigate the risk of oil slugging or motor burnout.
• Technical Versatility: Replaces multiple cross-referenced parts from Invensys and other leading manufacturers, reducing secondary inventory needs.
• Durable Construction: Engineered to withstand the high-vibration environment of commercial rooftop packaged systems.

What is the trip range for the 047356111 pressure control?
This specific model is calibrated for a 35-60 PSI operational range, providing a reliable safety cutout for modern refrigerant circuits.

Does this part include the necessary mounting hardware?
Yes, the 047356111 includes a specialized adapter to ensure compatibility with standard service port configurations found on McQuay and Daikin equipment.

Which systems are compatible with this low-pressure switch?
While primarily used in RoofPak rooftop units, it is compatible with any Daikin or McQuay system requiring a 240V miniature low-pressure control within its rated PSI window.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.