This variable VCR system is designed to be “variable” in true sense. It consists of a variable speed compressor, two options for cooling load, two types of condenser and three types of expansion device. This system gives a flexibility of operating 12 different VCR systems in a single setup. It helps is analyzing the VCR system in every possible configuration. Each of this configuration can be operated at the desired compressor speed. Data acquisition and controlling is made seamless with the use of HMI. The entire operation of the VCR system is automated with PLC controls and data logging via USB. The system can also be remotely operated by an Ethernet connection.