Release 2026.10.23.2

Improvements to VFD cooling-unit control

A cooling unit under VFD control adjusts its fan speed as the solve runs to hold its setpoint. We improved how the solver makes those adjustments, so models with VFD-controlled units solve more reliably. Models without VFD control run exactly as they did on the release before.

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CoolSim 5.4 changelog
CoolSim 5.4 changelog
Every change to the CoolSim 5.4 desktop app that has reached customers, newest first, with a page for each version and each preview.
How we know it’s right
Every CoolSim job is meshed with Ansys Icepak, solved with Ansys Fluent, and has to pass the same checks before its report is sent. What those checks are, what they don't prove, and how to check a report yourself.

Results different from an earlier run?

Send us the job number. We’ll tell you which release it ran on, which change it is, and what it means for your model.

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