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mouser.com/amphenol 11 Sensor data from IIoT IAQ enable BAS to adjust control loops for ventilation, outside air intake, humidity control, and more. Amphenol has sensor solutions to help designers provide a cost-effective upgrade path, integrating real-time IAQ sensor data with building BAS. Amphenol has the product portfolio to make this happen with a fast time to market. Let's look into the necessary Amphenol Sensors technologies and solutions that enable this revolution. Health, Comfort, and Function: HVACR By measuring refrigerant pressure in air conditioning, heat pump, or other refrigerant systems, technicians or a smart system can diagnose a range of operating problems, including a refrigerant leak, over- or undercharging of the refrigerant. Refrigerant pressure readings are measured at the air conditioning compressor/condenser unit. If reading numbers are too low on the high-pressure side (compressor output) or low-pressure side (compressor input or suction line), this indicates a problem with the compressor's ability to develop normal operating pressure ranges. This affects the cooling capacity of the air conditioning system. In a healthy HVACR system, a typical number is a -5°C to -5.5°C difference from the supply air and return air. Professionals call this temperature difference the evaporator Delta T, the difference between two related temperatures. Gas and Particulate Detection: Indoor Air Quality (IAQ) Global environmental organizations define IAQ as the air quality within and around buildings and structures related to occupants' health and comfort. Understanding and controlling common pollutants indoors helps reduce the risk of indoor health concerns. Health effects from indoor air pollutants can be experienced soon after exposure or even years later. Indoor pollution sources, which release gases, particles, or mold, are the leading cause of indoor air-quality problems. Inadequate ventilation increases indoor pollutant levels because not enough outdoor air is being brought into the indoor space to dilute emissions from indoor sources. Typically, the building system cannot carry indoor air pollutants out of the area. High temperature and humidity levels will also increase the concentrations of some pollutants. IIoT enables HVACR and IAQ The IIoT revolutionized monitoring, analysis, and control of HVACR systems. Internet power provides new advantages in energy efficiency, remote monitoring, comfort, and easier maintenance. The IIoT enables data collection systems via physical sensors and data retrieval from the internet leading to developing optimum equipment commands. The IIoT enables control systems to respond proactively based upon data from sensors. With tangible data, building design engineers can create more optimized HVACR sequences for best IAQ. Sensors, such as refrigerant coolant temperature devices, measure the high-pressure temperature of the condenser and receiver/drier unit. Low-pressure refrigeration temperature is measured on the evaporator side of the line to maximize performance in HVAC systems. Figure 1: Industrial and commercial HVACR systems include air ducts, piping, vents, and thermostats. Refrigerators, freezers, and air conditioners operate with liquid refrigerants removing heat from indoor areas. Heating systems use oil, gas, and electric components to generate heat and distribute it through air ducts and vents. (Source/Amphenol)