 The system works in conjunction with existing HVAC controls ensuring that compressors work at maximum efficiency, while maintaining desired temperature levels.By preventing over-cycling, known as ‘Compressor Optimisation' consumption of electricity is cut by between 15% and 25%.Conventional controls, including Building and Energy Management Systems and state-of-the-art refrigeration controls, often operate only on reaching pre-programmed static values to switch compressors off and on or adjust capacity.