The XL12 FCU + 4 Lights is a two-in-one controller for HVAC and lighting which reduces hardware costs and engineering effort (one LonWorks® node instead of two). HVAC application supports two sequences (heat, cool or changeover). Light application supports four lamps. Up to two of the four light loops can be for constant light control. Light switching can be done depending on light level and occupancy (configurable via plug-in). Unused inputs can be used for monitoring.
The number of applications for LonMark certification is growing rapidly. To make sure your products are on-track for certification, design conformance into them by following the LonMark Interoperability Guidelines v3.4.
The Proficiency Testing Program for Qualified Open Systems Installers, Professionals and Integrators provides a worldwide standard of proficiency for individuals that install, integrate and maintain systems utilizing LonMark certified products.