Issue link: https://te.mouser.com/i/1478955
TE CONNECTIVITY SENSORS / WHITE PAPER Making HVAC Systems More Efficient and Reliable with Sensors 2 Pressure Sensors • Immunity to dust and clogging • Long term stability/Maintenance free • High accuracy below 500 Pa (0.07psi) • Large dynamic range for flow calculations • Built in temperature and barometric corrections Temperature • Fast response time • Long term stability even in high moisture and freeze/thaw conditions • Compact size • Available in a wide range of base resistance values, curves, and configurations Humidity • Resistance to free water • Fast recovery from condensing humidity • Electro-static discharge resistance • High accuracy, repeatability, and low hysteresis Scaling Intelligent HVAC Solutions While wireless technology can help expand HVAC and Industrial Internet of Things (IIoT) solutions over wider areas, it introduces another requirement: low power consumption. As more sensors are integrated into automation and monitoring solutions, it becomes increasingly important for sensors to draw less power. End users are looking for sensors that deliver long term stability and high-performance signal processing that improves accuracy and reliability. OEMs are looking for sensors that support wireless standard communication protocols (example BLE, LoRaWAN) to reduce integration time and cost. For example, TE Connectivity (TE) offers wireless single and triaxial accelerometers with Bluetooth Low Energy 5 (BLE5) and LoRa for low power and quick integration. Additionally, TE antennas, switches, connectors, and labeling products help to integrate wireless sensor technology into the IoT for HVAC automation and monitoring solutions. TE's unique lines of wireless and circuit-board mountable sensors can help customers and OEMs meet their needs for low-cost, scalable HVAC solutions that enable continuous performance monitoring and systems automation. HVAC Evolution Traditional HVAC systems implemented climate control via a thermostat that turned the system on and off according to a temperature range. Eventually, controls advanced to allow for heating or cooling according to a programmable schedule, and even by occupancy. Smart thermostats could change temperature based on the time, day, or motion. The thermostat was Some of the largest costs associated with buildings center around HVAC operation. If energy costs are low, some areas may have infrastructure limitations or regulations on power consumption. Additionally, there are unseen costs. For example, HVAC is linked to … • Employee productivity • Employee health • Maintaining quality and efficacy of materials and electronics Cost, grid limitations, and other factors are leading more companies to search for accurate and reliable sensors to drive HVAC and building automation solutions. While considering all sensor technology capabilities, there are some important requirements that are critical within HVAC applications. These include: HVAC Sensor Customer Requirements