The Hoechst Industrial Park has now become home to the most modern research complex in the entire Frankfurt area. This highly impressive multipurpose laboratory building (MZL) with its 27,000 m2 of space offers a variety of companies from the fields of chemistry, biotechnology and radionuclide research accommodation for no fewer than 500 workplaces. Hesco Deutschland GmbH and Gebrueder Trox GmbH together fitted some 260 laboratory discharge outlets with the Labcontrol automatic control and operational monitoring system, commissioning more than 1,000 LON-nodes. The internal supply-air and exhaust-air volume-flow controllers which have been installed, and which number more than 300, ensure that internal air conditions remain balanced, also securing and maintaining the required pressure inside the laboratories. The LON-technology applied here facilitated easy link-up with the building’s process-control engineering supplied by the firm of Siemens Landis Staefa for the purpose of securing up-to-the-minute visual display of appliance-status data (current actual volume flow rates or alarm signals associated with the discharge outlets or internal pressure levels). Decentralised regulation of the volume-flow controllers was achieved by installing presence indicators in the laboratories so that the volume flow can be reduced when the laboratories are not occupied. Close co-operation between the developers, the ventilation companies and Gebrueder Trox GmbH, during both the planning and the construction phases, made it possible to put the overall concept in place speedily and to successfully carry out one of the largest German LON-projects of last year. Your contact partner: Sales: H. Pfalzgraf, Fa. Hesco Deutschland GmbH, Tel: +49 (0)69-9 85 56 - 2 Technology: H. Winkler, Gebrüder Trox GmbH, Tel: +49 (0)2845/202-591