CO₂ Refrigeration System Components
For more than a decade, Copeland has been developing compression technologies and related components to support complete CO2 system solutions. Our collective commitments to engineering innovation and industry stewardship have helped to advance CO2 refrigeration technologies and accelerate their global adoption. Combining compression technology, advanced facility management and CO2 system controls, VFDs, leak detection, CO2 system components and expert services, we deliver seamless system integration that enables maximum system reliability, efficiency and simplicity.
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Environmental regulations and corporate sustainability targets have set the stage for wider adoption of CO₂ in commercial refrigeration. Discover Copeland's innovative solutions that focus on simplifying the application of CO₂ systems with our free E-Book.
CO₂ Resources & Expertise
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CO₂ Leak Detectors
- MRLDS 450 LEAK DETECTORS
- RLDS LEAK DETECTORS
MRLDS 450 Leak Detectors
Copeland's MRLDS-450 (modular refrigerant leak detection system) makes compliance with refrigeration safety codes simple and easy, saving time and money on equipment and installation. The MRLDS 450 leak detectors have additional CO2 capabilities on select models. The MRLDS 450:
- Detection range: 0–1,000 PPM
- Integrates with Copeland supervisory controls
- Interfaces with mobile app for quick, easy troubleshooting and calibration
- Pre-calibrated sensors provide fast, easy sensor maintenance
- Temperature-compensated measurement mitigates false alarms and optimizes accuracy in refrigeration applications
- Low-temperature performance down to -40 °F/C
RLDS Leak Detectors
The RLDS leak detection product platform has models specific for CO2 applications.
- Detection range: 0–10,000 PPM
- Multi-zone, aspirated systems designed to detect leaks early and minimize refrigerant loss
- Includes an audible alarm, front panel indicators and built-in relays to trigger external alarm devices in the event of a fault for immediate response
- Continuously monitors up to 16 separate zones
CO₂ Copeland Compressor Technologies
- ZO SUBCRITICAL CO₂ SCROLL COMPRESSOR
- 4MTLS SUPERCRITICAL CO₂ SEMI-HERMETIC COMPRESSOR
- 4MSLS SUBCRITICAL CO₂ SEMI-HERMETIC COMPRESSOR
ZO Subcritical CO₂ Scroll Compressor
Copeland ZO subcritical CO2 scroll compressors are designed to exploit the characteristics of CO2 refrigeration systems. The efficiency, reliability and liquid handling advantages of Copeland scroll technologies make it ideal for these applications. Features of the lineup include:
- 6 displacements from 1 to 6 horsepower
- 23 to 104 MBH; rated at -25 degrees F saturated discharge temperature
- 3 digital displacements (2, 3.5, and 6 HP at full capacity), providing 10 to 100% capacity modulation
4MTLS Supercritical CO₂ Semi-hermetic Compressor
Copeland 4MTLS supercritical CO2 semi-hermetic compressors with four-cylinders are the ideal solution for R-744 supercritical booster systems. The compressor line is characterized by a design operating pressure of 1740 psig (120 bar). All compressors are equipped with Copeland compressor electronics technology, offering faster system troubleshooting & protection.
- UL recognized
- Integrated high pressure ASME certified safety valves
- Discharge temperature protection
- Service valve rotates 360 degrees for ease of piping design
- Three sight glasses for mounting of oil management control
- One oil port for oil equalization in parallel system
4MSLS Subcritical CO₂ Semi-hermetic Compressor
The Copeland 4MSLS subcritical CO2 semi-hermetic compressor product line can withstand higher stand-still pressures. The product line include three displacements from 407 to 765 CFH with onboard diagnostics, offering faster system troubleshooting and protection from problems before they occur.
The capacity range of the 4MSLS product line ranges from 33 to 179 MBH at -25 degrees F evaporating, 20 degrees F saturated discharge temperature at 60 Hz. The Copeland subcritical CO2 semi-hermetic compressor line can be applied with a variable speed drive to allow for precise load matching and smooth system operation, with drive inputs from 25 to 70 Hz.
Copeland Variable Frequency Drives
- EVM SERIES
- EVH SERIES
EVM Series
- Intended for applications where less control functionality is needed
- Covers ½–30 HP range
- Available in single- and three-phase input options
- Equipped with onboard Bluetooth® capabilities for ease of use
EVH Series
- Designed for large, centralized rack applications that require more demanding motor control functionality
- Covers 1–250 HP
- Available in three-phase, including 575-volt options
- Delivers advanced motor control
CO₂ Advanced Controls for System Management
- E3 SUPERVISORY CONTROL
- CASE CONTROLLER 200 (CC200)
- XM600 SERIES CASE CONTROL
E3 Supervisory Control
The E3 controller for CO2 applications is part of Copeland's next generation of facility management and refrigeration control platform. This CO2-specific version of the E3 controller streamlines management of essential facility systems and provides advanced CO2 supercritical booster refrigeration control in an easy-to-use platform. It’s designed to optimize system performance in multiple ways:
- Reduces set-up complexity by consolidating multiple applications into one, CO2 -specific workflow
- Provides visual overview of entire CO2 system operation in one screen
- Supports customization of all required system values in one view
- Assists users to manage entire CO2 supercritical rack system
- Enables faster system start-up via a simplified, one-time setup and tuning of system parameters
Case Controller 200 (CC200)
Copeland's CC200 controller is specifically designed to handle the unique challenges of today’s retail grocery refrigeration environments. It works in tandem with the advanced CO2 applications in the E3 Supervisory Control and also boasts specific CO2 features of its own:
- EEV control algorithms keep superheat stable and air temperature on target for CO2 evaporators
- CO2 backup high-pressure shutdown and restart timer
- DI function for leak detection pump down and shutdown
- Control PWM and Stepper valves from one hardware
- Multiple defrost strategies and features: pump down, drip/drain time, minimum defrost time, 8 case defrost group
- Multiple CO2 evaporator pressure transducer ranges
- Designed to work with E3 CO2 or standalone
Combined with an all-new Cold Chain Connect mobile app that simplifies the setup and commissioning of the controller, the CC200 delivers significant improvements in energy savings, reliability, food quality, and overall store health.
XM600 Series Case Control
Copeland case controls for CO2 systems deliver worry-free, case-level system optimization and seamless integration with the E3 supervisory control for CO2 applications. The XM600 series case control:
- Manages defrost and minimum defrost time
- Controls pump down before defrost
- Supports multiple probe regulation
- Integrates with the E3 supervisory control for CO2 applications, E3 and Site Supervisor controllers, as well as Copeland’s E2 controller
- Provides multiple parameter maps with DI switching for stand-alone use
- Supports in-the-field firmware upgrade for enhanced serviceability