Certifications The units are CE marked, in accordance with current European directives concerning manufacturing and safety. On request, the units can be produced in compliance with the laws in force in non-European countries (ASME, GOST, etc.), and for other applications, such as the navy (RINA, etc.). Versions This range is available in HIGH EFFICIENCY (XE) version: 12 sizes to cover a range from 158 to 624 kW with an EER up to 3.04 and ESEER up to 4.74 in cooling mode and from 173 to 674 kW in heating with a COP up to 3.30.