The SunSource HVAC system developed by Lennox can effectively double the rooftop unit’s efficiency rating, integrating a rooftop unit, solar modules, and microinverters to power commercial buildings.
The SunSource HVAC system developed by Lennox can effectively double the rooftop unit’s efficiency rating, integrating a rooftop unit, solar modules, and microinverters to power commercial buildings. The system feeds solar energy directly into a 3- or 6-ton Energence rooftop unit, and supplies any excess electricity to the rest of the building or to the power grid. Real-time energy production is recorded and monitored by a communications module. Installation does not require a high-dc-voltage line, and each microinverter’s output is limited to 50 V. During a power outage, the microinverters stop transmitting to the rooftop unit and the main building panel.
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Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.