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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 version 4.6.3 for free now!

Coolselector®2 is currently at version 4.6.3 (last updated on 29.09.2021).

Changes in 4.6.3:

  • Programmable controllers
  • A2L-ready, Optyma Slim Pack condensing units
  • EVT Solenoid valves for CO2
  • Changes and bug fixes

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


In this short video, see how Coolselector®2 makes component calculation and selection easy for air conditioning and refrigeration professionals such as OEMs, consultants, and wholesalers.


Type Name Language Valid for Updated Download File type
Compendium Coolselector®2 Exercises English Multiple 19 Sep, 2019 13.5 MB .pdf
Installation guide Coolselector®2 Server Installation Guide English Multiple 18 Nov, 2020 1.2 MB .pdf
User guide Coolselector®2 User Guide English Multiple 04 Jun, 2019 4.4 MB .pdf
User guide Coolselector®2 User Guide Spanish, Castilian Spain 25 Feb, 2020 5.8 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
User guide Coolselector®2 User Guide Russian Russia 25 Feb, 2020 4.4 MB .pdf
User guide Coolselector®2 User Guide Chinese (CN) Switzerland 04 May, 2020 25.2 MB .pdf





    CRC32: 8F2BD9B5

    MD5: 502254A5BDEDC399286F76EA889CB3BB

    SHA1: 93307D5E2837A4ED7586451D5E43AEF117BA6459


    CRC32: F02505DB

    MD5: 8A1DF289BEBE292978DFE2869FD306A6

    SHA1: A491448D8959DDBEF782C6DAA9E64A01D8126609


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