Norwegian hospital upgrades to a CO2 natural refrigerant system with Optidrive controlled compressors

A Norwegian hospital has upgraded to an environmentally friendly R744 ( CO2 ) natural refrigerant-based HVAC-R system using Invertek Drives Optidrive variable frequency drive (VFD) technology.
 
St Olav Hospital in Trondheim has retrofitted the system to reduce its carbon footprint and impact on the environment, as well as creating significant energy savings.