DATACENTER MANAGER is a centralized management and control system specificly design for Datacenters applications that provide up to a 70% efficiency improvement into the air conditioning system with a substantial global benefit & drastic increasing of the datacenter’s global PUE value (Power Usage Effectiveness). DATACENTER MANAGER combine the optimized management of the indoor Climaveneta CRAC units ACCURATE on chilled water version inside the datacenters, together with the external Climaveneta Chillers. It managed up to 10 internal unit and up to 8 external units with the same or different power ratings, on 2 pipes systems. The indoor ACCURATE units regulation is demanded to the Master units that through a clever algorithm named ADS (Adaptive Set Point ) recognized the real instantaneous heat load inside the Datacenter and transfer such info to the external group of chillers in order for them to optimized their functioning and resources in order to provide maximum global efficiency. DATACENTER MANAGER great advantage is to provide continue cooling capacity modulation of the external chillers based on the real Datacenter’s heat load noticed from indoor ACCURATE units. The DATACENTER MANAGER has an 8.4” touch-screen user interface, allowing access to all information and the sending of commands with a few simple touches. Communication between DATACENTER MANAGER and the machines is accomplished by means of an RS485 serial connection. It has its own adjustment probes to be placed in suitably prepared pockets in the hydraulic system pipes. Various additional appliances, to be chosen according to the characteristics, needs and availability of remote connection at the place of installation of the units, can be supplied in the same industrial box as the DATACENTER MANAGER: modem/router for connection to a fixed ADSL line, modem for connection to a fixed PSTN, modem for connection to GPRS.