For decades, Carel has been a titan in the HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration) control world. Their flagship programming and configuration suite, , has long been the industry standard for managing pCO controllers, Power+, and other advanced HVAC systems. Recently, Carel rolled out a significant update to this essential software.

Published: October 2023 (Updated with latest release notes)

Check your version by opening 1Tool and looking at the title bar. If it doesn’t say Version 1.8.x, download the latest release from Carel Club today. Disclaimer: Software version numbers and features are based on public release notes as of the article’s publication date. Always verify compatibility with Carel technical support before upgrading critical production infrastructure.

Once you save a project file ( .pcd ) with the new version, you cannot open it again with version 1.5 or older. Always keep a backup of the original file in the old format before updating. For most professionals, yes . The security fixes alone justify the hour-long update process. The new auto-detection feature for serial converters saves minutes of guesswork on every single job, which adds up to hours of saved time per month.