RACA Journal January 2019 | Page 54

Projects Continued from page 49 1 2 3 This system was replaced with a vacuum system, which effectively reduced the water consumed by toilets and urinals by 80%. The vacuum system also made drainage from the kitchen, laboratories, and medical facility easier and the link tanks and pumps could be removed, thus eliminating the maintenance problems experienced with the old systems’ tanks and pumps. BMS system The entire control system was replaced with a Johnson Controls’ building management system (BMS) employing current technology. The new BMS performs overall monitoring and control of all systems as well as energy. Sensors are installed in all systems in the base and include temperature sensors, pressure sensors, air and water flow sensors, and CO 2 and O 2 sensors. All critical parameters of all systems can be monitored from the radio room in Block A. There is also a satellite link to the DEA (and soon DPW) offices in Cape Town. This link will enable DPW to monitor the systems and to provide assistance to the annual residence team as required. GENERAL 1. 2. 3. 52 Engine plant room. S.A. Agulhas II – offloading near the German base. Evaporative coolers for one of the freezer rooms. RACA Journal I January 2019 Many other improvements were made, including: • The kitchen and dining room layout and flow were improved, and macerators and a flotation system were installed to remove grease from kitchen wastewater. • The waste room was relocated to the western side of the base to improve loading/unloading of goods and waste and to ensure personnel safety. www.hvacronline.co.za