Thermal Cycling of Modules for the Upgrade of the CMS Outer Tracker

At the high-luminosity LHC the CMS Tracker will be faced with unprecedented instantaneous luminosity. To cope with this harsh environment, the existing tracker will be replaced with a completely new system that will operate at -35 degree C. As a final step of quality control each module has to undergo several thermal cycles between room and operation temperature, which is called burn-in. The presentation will introduce the burn-in setup at DESY and discuss the current status and foreseen testing procedures.