Where the building's cooling infrastructure is to be enhanced to satisfy an increased heat load, either the CO2OLairpacTM or CO2OLwaterpacTM are specified. Both chillers provide a packaged plant solution to compliment a dedicated high density server cooling system. For the CO2OLairpacTM, air-cooled R134a chiller with integral CO2OLpacTM modules are available from 300kW to 750kW capacities.