# Smart Efficiency — EtherMatic

Operating a heating, ventilation and air conditioning (HVAC) system at optimum efficiency in a commercial setting is complicated, to say the least. There is a very real chance that any number of setpoints, levels and feedbacks at boilers, chillers, pumps, fans, air delivery components, and more can cause costly inefficiencies.

At the start of any fine-tuning, recommissioning or verification project, you need to collect data. Portable data loggers are small, rugged, reusable devices that are low cost and allow for time-stamped collection of data for just about any component of an AHU system. The battery-powered logger itself typically has one or more internal sensors, as well as several data ports for incorporating external sensors. With data loggers, you can easily monitor temperature, relative humidity, motor on/off, CO2, and more, without having to invest in costly permanent metering. When the monitoring period is complete, data is downloaded easily to a computer via wireless or cellular networks, or manually by plugging the logger into the USB port. Then data can be analyzed and formatted using the logger software, or exported to a spreadsheet application.