The internal and external air that we breathe increasingly poses a health hazard with pollution from vehicle exhausts, but inanimate objects are also affected by pollution from city air. Museums are protecting their contents for posterity such as The Louvre in Paris which has a collection of nearly 300,000 works.
One solution is air conditioning, where a balance of room and outside air is controlled to maintain a healthy climate. Simplatroll supply Lenze frequency inverters which provide stepless speed control of ventilators and extractors. Individual rooms in The Louvre require the air quality to be regulated independently in order to protect valuable exhibits. Variables such as the volume of air and the number of people will affect the air quality in each specific room. Individual room requirements are managed by cleaning the air, which is then heated, cooled or humidified to suit each room according to preset levels.
The Lenze 8200 HVAC frequency inverter controls the speed of the fan motor by receiving a set point signal from the building management system. The inverter is also able to respond to specific flow rates required for night operation or smoke, in the event of a fire.
Integration into automation systems, such as building management schemes, is enabled as each inverter is equipped with a number of interfaces. Units can be networked to Interbus S, Profibus DP, Canbus or RS232 and remote control can be achieved using Windows based PC programmes.
Each drive operates in the optimum range as the air conditioning motors vary from zero to full operating speed using the inverter. As a result, only the energy required to maintain the air quality is consumed.
Tel: 01234 350044 www.simplatroll.co.uk