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Multiplex Refrigeration Systems Can Help Meet Energy Regulations


In the past, multiplex systems have struggled to gain momentum in the refrigeration industry, due to their higher initial cost. But with the Department of Energy tightening their regulations on minimum efficiency levels and concerns over refrigerant leakages increasing, the business case for these systems is quickly turning.

Not only do they offer significant potential for savings over the life cycle of the system, multiplex systems, in particular those utilizing scroll digital technology, provide a number of benefits in addressing energy consumption, reliability and environmental challenges, including:

  • Increased capacity during lower outdoor ambient temperatures
  • Operation at low head pressure, producing energy savings of 10 percent or more compared to traditional systems
  • Modulation capability of 10–100 percent, allowing the system to automatically adjust capacity as needed while reducing energy consumption
  • Faster, more accurate decision making through digital diagnostics, improving performance and reliability
  • Can more quickly address issues through alerts, including the ability to trip the compressor when severe conditions are detected
  • Reduced total energy costs through monitoring and reporting of energy consumption and the ability to take action during peak periods

While there are several clear benefits to multiplex systems, they are not without their challenges—mainly in relation to suction piping—but these can be eliminated if addressed during the design phase.

As more users adopt multiplex systems and first costs decline, this technology will offer even more potential for return on investment.

This blog is a summary of “The Multiplex Revolution” Technology Review in the latest edition of Emerson Climate Technologies’ E360 Outlook. Read the article in its entirety and download the digital edition.

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