7.2 Operation of the Active Air ChimneyIn order to open the Air Chimney, slid the dial to the “open” position. This automaticallyactivates the pre-installed case fans under the top cover.To close the Air Chimney simply slide the tab back in the opposite position. This will alsodeactivate the fans.8. Installing a water cooling solutionIn the Deep Silence Nanoxia 6 Rev. B, you can install both in the specially designed mountingbracket, as well as under the cover radiators or compact water cooling solutions8.1 Installation of a radiator or compact water cooling solution on the mounting bracketbehind the HDD-cageYour new PC-case is equipped with a special mounting bracket that is ideally prepared toreceive a 120/140/240/280 mm radiator. It makes it possible to mount a radiator and can beequipped with up to four fans for maximum heat-dissipation. Including the pre-assembled 2x 140 mm Nanoxia Deep Silence fans behind the front panel, up to 6 fans provide a superiorcooling performance.In order to fix a radiator on the Mounting Bracket, you need to remove it first by removing thefour screws, with which the holder is attached to the HDD cage (see chapter 5.3).Next, set the radiator you would like to install flat on the table. Position the mounting bracketwith the outside on the radiator as seen in the picture below.Put up to two 120 or 140 mm fans into the Mounting Bracket and connect fans, bracket andradiator with extra-long screws.17