The GML-Series serves an important future market, because the excellent thermodynamic properties of CO2 bring many benefits. And finally this refrigerant replaces bit by bit ozone containing CFCs. The GML-Series enables compact systems which can, despite their great performance, manage with smaller cable cross-sections. In the future, more than ever, effective and compact systems for refrigeration and air conditioning applications are required, where high pressures can be handled easily. The used multi-layer technology is based on 2 stainless steel plates, which are fully soldered together with a copper foil and thereby withstand enormous pressure. The heat exchangers of the GML-Series are available in two sizes for pressures up to 75 bar/1088 psi.