Roller CO2 unit coolers marked "80 bar" on a display column

Photo: Mariusz Młynarczyk / CloudAir.tech

Two Roller unit coolers labelled "80 bar" and "CO2OLER" are mounted on a white display column, one with a finned coil and the other with twin axial fans. Visitors inspect the units while others meet at white bar tables beside a backlit Roller image panel at Chillventa 2018.