CO₂ Control solution for smaller refrigeration systems

Using CO₂ compressors with BLDC/PM motors, combined with an Invertek variable frequency drive and Reftronix CDU controller, provide highly energy efficient solutions for CO₂ refrigeration systems.

Our controller is a 6-in-1 solution: A CO₂ CDU controller, two evaporator controllers, two superheat controllers and a system manager/front-end all in one package. Everything is integrated to ensure effortless installation and operation of smaller CO₂ refrigeration systems

Benefits

• Specifically for the OEM
  • Simplified panel design
  • Fewer refrigeration components
  • Integrated factory line test
  • Increase your bottom line

•  For the Installer
  • Faster commissioning
  • Less field installed components
  • Secure cloud link and easy setup

•  For the Enduser/Technician using cloud link
  • Unprecedented serviceability
  • Automatic benchmarking
  • Energy / performance reports
  • Smart service dispatch
  • Component performance tracking

Main functions and features:

• Minimal CO₂ process experience required
• Integrated support of up to 2 rooms/cabinets (incl. EEV)
• Integrated LAN cloud & direct Wi-Fi connection – No need for gateways
• Energy savings of up to 25%
• Fluid model-based optimization
• Better low charge operation
• Enhanced gas cooler stability
• Cloud supported data driven control optimization
• Integrated with state-of-the-art BLDC inverters
• Integrated backup power (UPS) 
• Bus communication with inverter(s) 
• High Pressure switch wired directly to inverter Safe Torque Off (STO) 
• No unloader valve for compressor 
• No receiver valve for booster systems
• Tested and validated with many compressor and valve suppliers

• Single stage (Medium Temp)
• Two stage (Low Temp)
• Control of up to two evaporator with EEV 
• Gas cooler and high pressure system control
• Oil management

Applications:

• Smaller refrigeration systems
• Condensing units