The Modelica Buildings library 5.0.0 has been released on November 17, 2017.

Version 5.0.0 is a major new release that contains new packages to model control sequences, a package with control sequences from ASHRAE Guideline 36 and a package with pre-configured models for data center chilled water plants. All models simulate with Dymola 2017FD01, Dymola 2018 and with JModelica (revision 10374).

The following major changes have been done:

  • The package Buildings.Controls.OBC.CDL has been added. This package provides elementary blocks to implemented control sequences. The blocks conform to the Control Description Language specification published at
  • The package Buildings.Controls.OBC.ASHRAE.G36_PR1 has been added. This package contains control sequences for variable air volume flow systems according to ASHRAE Guideline 36, public review draft 1. The implementation uses blocks from the above described Buildings.Controls.OBC.CDL package, and conforms to the Control Description Language specification.
  • New models for ideal heaters and sensible coolers, and ideal humidifiers have been added.
  • Various models have been improved.