Ingo Ruehl is the Group Leader of the EN-CV Group in charge of procurement and operation and maintenance of cooling, ventilation and air conditioning systems for the accelerators and experimental areas. EN-CV also operates the fluids distribution systems for the Laboratory (drinking water, compressed air, etc.). The group provides engineering studies and support for the cooling of experimental detectors and electronics.

The CV group consists of the following sections:

• CES - CMMS, Electricity, Stores: Section Leader: Anders ANDERSEN -  web site
• CL - Controls:  Section Leader: Renaud BARILLERE - web site
• DO - Design: Section Leader: Yannic BODY - web site
• LHC - Section Leader: Olivier CRESPO-LOPEZ -  web site
• PJ - Projects and CFD: Section Leader: Roberto BOZZI - web site
• PSM - PS Meyrin: Section Leader: Gabor PETRIKA - web site
• SPS - SPS Prevessin: Section Leader: Jani LEHTINEN - web site
• WMC - Water Management & Consolidation: Section Leader: Serge DELEVAL - web site