Reftronix Links CO₂ Controller to Danfoss System Manager

Reftronix, a Danish manufacturer of commercial CO₂ condensing-unit controllers, has agreed with Danfoss to make an interface between the Reftronix controller and the Danfoss System Manager. 

The interface was initially designed for Area Cooling Solutions’ iCool CO₂ condensing unit, said Henrik Christensen, Reftronix’s U.S.-based Managing Director. Alarm handling and data logging are also included.

The Danfoss System Manager ties various controllers together under one screen, including those use for racks, cases and HVAC, he added.

“You can now connect the iCool system to the Danfoss System Manager, and it’s integrated like the rest of the refrigeration systems in the store,” he said. The interface can work for any other supplier’s CO₂ condensing unit as well, he added.

Reftronix’s CO₂ condensing unit controller comes packaged with an variable frequency drive (inverter) from Invertek that modulates the compressor speed and unit cooling capacity.

Installing a CO₂ condensing unit to serve the cold rooms of a supermarket that is already using a CO₂ rack system would enable the store to be “100% CO₂,” noted Christensen.