By standardizing on LonWorks control networking technology, the Spiel’s were able to leverage a single platform among multiple applications in the kitchen and building, all of which aim to lower energy consumption and increase operational efficiency. The overall solution makes use of LonWorks powerline technology (for kitchen equipment) and Free Topology wiring (for building systems) as well as LonMark standard profiles. LonMark International has the responsibility of managing profiles for McDonald’s. The organization’s experience creating and managing interoperability standards made it an ideal choice to administer this program.
The Franke Energy Management System (EMS), developed by Engenuity Systems, Inc., was selected as the main platform for the solution because it is open, interoperable and uses the same infrastructure and hardware needed to operate both the building and kitchen applications (FTT and powerline). This mixed-media approach allows restaurant equipment to be moved in the kitchen and still provide reliable communications by simply plugging into any power outlet.
The system is an off-the-shelf solution using components from various LonWorks vendors including: Echelon Corporation, Continental Controls, Honeywell and METZ Connect. It provides HVAC control for all zones, on/off control for all exterior lighting, daylight harvesting for the interior pendant lighting in the dining room and metering/monitoring of the electrical mains and solar hot water system. All of these functions are displayed and controlled with an easy-to-use, browser-based touchscreen dashboard in the manager’s office.
The system optimizes energy efficiency by adjusting HVAC and lighting performance based on prescribed set points, constant commissioning, and scheduling based on operating hours and sunrise/sunset (astronomical clock).
The Spiels expressed that the overall ease of use including the simplicity of the dashboard to control systems and monitor the energy efficiency-was also a key deciding factor for their selection.
In the future this platform will be able to provide a number of significant benefits for the typical use cases of owners with single or multiple locations, including:
- Improved inventory management and reduced food waste by monitoring food production and equipment performance based on real-time information provided by the equipment.
- Reduced equipment downtime through usagebased preventative maintenance rather than fixed schedules. Automatic notification messages are transmitted to suppliers when equipment problems emerge, resulting in improved first-timefix percentage.
- Better food safety reporting by automating reporting of food and freezer temperatures and cataloging temperature data into standard reporting formats.
- Track equipment assets in the store or between stores.