Two of Resource Data Management’s (RDM’s) refrigeration experts were invited to discuss the startup and commissioning of a CO2 transcritical booster system on Refrigeration Mentor’s podcast. During the conversation recorded as part of the podcast’s “CO2 Monday” sessions, Chris Prom and Cody Hamm gave practical tips on how to set up the most efficient CO2 refrigeration system.

Replacing a controller with minimised downtime

If an existing RDM Intuitive refrigeration controller needs to be replaced, the settings of the old controller can easily be imported to the new controller. After following a simple three-step process, RDM’s control and monitoring system front-end DMTouch can import the settings of the replaced controller into the new controller to ensure its seamless integration into the refrigeration controls infrastructure to allow minimal setup times.

The full explanation is available here

DMTouch Features: Product Priority & CO2 Load Shedding

DMTouch provides two options to protect perishable goods if there is a failure in the refrigeration system. The features “Product Priority” and “CO2 Load Shedding” can be used to protect perishable goods according to the priority of their refrigeration cases.

If using the Product Priority feature, valves on all controllers can be shut until the condition has remedied itself. DMTouch will then start staging refrigerated cases back on according to their priority. Cases with perishable goods will be assigned a higher priority than those with goods that do not need cooling such as beverages.

If there is a fail condition, the CO2 Load Shedding feature will shut off the refrigeration cases with the lowest priority first to maintain the suction pressure on high-priority cases.

PLC commands from DMTouch can pre-empt load shedding. If a PLC strategy is created that considers suction pressure, high pressures can be adjusted by sending an automated command to a valve of a lower priority case to a custom percentage, or to close entirely. This allows suction pressure to be maintained for the higher-priority cases before an alarm is initiated and the low-priority cases have to be turned off completely.

The full explanation is available here


Explaining the navigation of the front-end system DMTouch, our experts highlighted the easily accessible web browser and IP-based system.

More details are available here

More Information

For more information about any of the solutions mentioned in the podcast, please contact us at The full podcast including practical tips from our experts is available here.