The Evergreen® 23XRV variable-speed screw chiller, with Foxfire™ compression technology and R-134a non-ozone depleting refrigerant in series counter-flow, has improved chiller plant efficiency by more ...

Part-load efficiency is rapidly becoming the most important measure of energy efficiency in chiller units. Around the world, new environmental standards are increasingly based on a combined part-load ...

What is a variable frequency drive? Heating, ventilation, and air conditioning systems' air supply used to be constant volume into a space. Now a variable air volume control is being used to provide ...

Compressed air is a vital utility to most commercial and industrial operations. It runs essential tools and machinery, provides power to material-handling systems, and clean air to processes. Yet ...

The Sinamics CU250S-2 control unit works with the Sinamics G120 variable speed drives. Related To: Siemens Industry The unit provides vector control with encoder feedback; it supports single-axis ...

Variable speed drives (VSDs), sometimes also known as variable frequency drives, are electronic devices used to regulate the speed of an ac induction motor. Electric motors consume approximately 25% ...