Coolselector®2 helps you optimize energy consumption and increase efficiency in any HVACR system. Run unbiased calculations based on a set of operating conditions — such as cooling capacity, refrigerant, evaporation, and condensation temperature — and then select the best components for your design. We've removed the complexity from the equation so that you can focus on what you do best: being awesome.
Coolselector®2 is currently at version 5.6.3 (last updated on the 30th of September 2025).
Changes in this version:
Download Coolselector®2
Coolselector®2 is available for use in a browser. If you are using a Mac or a tablet, access our free online version by clicking the link below.
Use your knowledge of air conditioning and refrigeration and skills within Coolselector®2 to solve our monthly challenge. Answer correctly, and you’ll be entered into a drawing to win a custom-made action figure — specially designed to look just like you. It’s the ultimate collector’s item. Start following us on social media and watch for the challenges to go live. Or sign up for updates to get the monthly Coolselector®2 challenge delivered straight to your inbox. You can read the contest rules here.
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The refrigeration software offers market-leading simplicity and professional ease in the system design process of all commercial and industrial refrigeration projects. A unique tool that truly makes the complex simple. One software for all your selection and calculation needs.
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For further information, please contact us.
If you need assistance in how to work with Coolselector®2 please refer to the Support area of this website.
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Installation of Coolselector®2 ("the Application") is provided on an "as is" and "as available" basis for the intended purposes as determined by Danfoss only and any use hereof is at the user's sole risk. The Application and results and information generated thereby cannot substitute technical advice but must be verified by the user, they are not promises and should not be relied on as accurate data or analyses.
Danfoss disclaims all warranties and conditions regarding the Application, whether express, implied, or statutory, including, but not limited to, conditions of merchantability, satisfactory quality, fitness for a particular purpose, accuracy and non-infringement of third parties' rights. Danfoss does not warrant that the Application will meet your requirements or that the operation hereof will be uninterrupted or error-free. To the extent not prohibited by law, in no event shall Danfoss be liable for any direct, special, indirect or consequential damages, whatsoever, including, without limitation, damage to property, damages for loss of savings or profits, or loss of data arising out of any use of the Application.
©2018 Danfoss A/S
Learn how to use Coolselector®2 and operate it with confidence by participating in the Coolselector®2 Startup School. This extensive collection of training videos and exercises gives you insight into the technical workings of the software and shows you how to get the most out of it.
See the full playlist here (18 videos)
Dive into the details and learn about the principles that drive this powerful software. The Coolselector®2 Deep Dive series is hosted by Morten Juel Skovrup, lead developer of Coolselector®2.
See the full playlist here (11 videos)
If you’re already using Coolselector® to simplify your refrigeration design process, this on-demand webinar is the perfect opportunity to deepen your understanding of its capabilities. In this session, you’ll learn how to select components with greater precision, explore best practices for sizing liquid, suction, hot gas, and refilling lines, and discover how to effortlessly export selections and create Bills of Materials (BoMs) directly within the tool.