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We did complex — you do awesome

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.


Get the latest version for free now!

Coolselector®2 is updated monthly.

Download it for free below.

Features and benefits

Using a Mac or a Tablet?

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.

Launch Coolselector®2 online
Take the Coolselector®2 Challenge

Take the Coolselector®2 Challenge

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. 



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.


Type Name Language Valid for Updated Download File type
Installation guide Coolselector®2 Server Installation Guide English Multiple 22 Feb, 2022 1.2 MB .pdf
User guide Coolselector®2 User Guide Spanish, Castilian Spain 25 Feb, 2020 5.8 MB .pdf
User guide Coolselector®2 User Guide Chinese (CN) Switzerland 04 May, 2020 25.2 MB .pdf
User guide Coolselector®2 User Guide Russian Central Asia Unit 25 Feb, 2020 4.4 MB .pdf
User guide Coolselector®2 User Guide English Multiple 04 Jun, 2019 4.4 MB .pdf
User guide Coolselector®2 User Guide French France 05 Mar, 2020 5.5 MB .pdf
User guide Coolselector®2 User Guide Portuguese Multiple 03 Jan, 2020 5.3 MB .pdf


Contact us

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.

Coolselector®2 survey

We would love to hear what you think about Coolselector. Participate in our Coolselector survey today – your opinion matters!

Participate here


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


Coolselector®2 Startup School

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)

Coolselector®2 Deep Dive

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)


Coolselector®2 Survey

We would love to hear what you think about Coolselector. Participate in our Coolselector survey today – your opinion matters!

Participate here