CSYS Control Systems L.L.C. is an engineering company established in 1995 consisting of a Controls Division specialized in the design, supply and comissioning of total integrated building automation and control systems (HVAC, lighting, access/security, power monitoring, others) and a Valves Division able to supply complete valve packeges for building services speciffically chilled water balancing valves and engineering, as well as water supply, and drainage. Through its engineering expertise and diverse product (hardware/software) porfolio, ACSYS has become the leader in the area able to provide total solutions based on industry standard protocols which offer the propery owner freedom of choice, as well as substantial savings on installation, operation and maintenance costs, whilst maintaining a comfortable and functional indoor environment. ACSYS is an open system integrator for LONWORKS based systems.