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Aermec
The launch of Aermec’s next generation chilled beams, offering clean healthy air and acoustic comfort can provide a more flexible HVAC solution whilst reducing energy consumption and reliance on fossil fuels. The EHT next generation hybrid induction terminal combines, cooling, heating, fresh air, ventilation-only and air distribution in one compact device for rooms with a ceiling height of up to four metres. The range can meet the needs of a diversity of buildings which can be varied in terms of size, construction, and usage. With a need to focus on moving towards the government’s net zero targets, the EHT offers a solution that delivers high performance but with limited energy consumption. A fundamental feature of the EHT is its aesthetic appeal making it an ideal solution for a diversity of interiors, including offices, hotel rooms, airports, railway stations, hospital environments and any large area in general. The design of the EHT’s nozzles sets it apart. Developed using CFD analyses, their moulded production quality that guarantees an induction ratio up to six. With no moving parts the EHT offers acoustic comfort. Environmental consideration was a key part of the design
process. Parallel heat exchangers maximise efficiencies and the unit fully exploits the Coanda effect. Consideration was given to the optimisation of the finned coils, obtaining the maximum heat exchange coefficient with reduced pressure drops on the air and water side, resulting in the highest levels of comfort whilst respecting the ecosystem. Dehumidification is addressed by the air handling unit, resulting in no condensate inside the EHT beam, eliminating the risk of mould and bacteria and other organisms that may be harmful to health.
Air of the highest quality is injected into the space – the air handling unit filters, treats and dehumidifies fresh air before sending it into the EHT. The option to be able to select the right configuration of the nozzles, ensures that the right fresh air flow rate can be guaranteed for the required application. Installation is quick and simple and for ease of maintenance components are accessed from below, by opening the suction grille. Architectural integration ensures compatibility with 600x600mm false ceiling tiles and the head-to-head positioning of two adjacent units results in a seamless visual effect. The EHT is suitable for new and refurbished buildings.
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Testo
Testo has introduced new compact handheld measuring instruments. Delivering precise results wherever you need them – fast, flexible, user- friendly and connected to smartphones and tablets. The new compact class range from Testo are perfect for installing and maintaining air conditioning and ventilation systems, servicing heating systems, ensuring indoor air quality and comfort, measuring pressure across HVAC and industrial applications, or measuring temperature in food and laboratory environments. Testo’s all-new HVAC measuring instruments demonstrate the proven precision, quality and reliability already associated with the Testo brand. Not enough time in the day, endless to-do lists and time- consuming tasks: These are the moments when engineers can depend on the new compact measuring instruments from Testo. Measurement values are determined and displayed quickly via the user-friendly testo Smart App. Not only does the App ensure all measurement menus are available, it also allows a practical second screen function, measured value storage, analysis and documentation in the smart assistant at any time. Smooth and energy-efficient operation of air conditioning and ventilation systems can only be ensured by regular measurements of the relevant parameters. With the new compact measuring instruments testo 417, testo 416 and testo 425, flow and volume flow measurement in ventilation ducts, at air inlets and outlets and when adjusting balanced residential ventilation is easier than ever. We spend almost 90% of our time indoors every day. Indoor air quality and comfort are therefore essential for minimising health risks and ensuring performance in the workplace. Thanks to the new compact measuring instruments testo 535, testo 545 and testo 625, CO2, illuminance, temperature, and humidity are controlled quickly, easily and precisely, ensuring a healthy indoor climate that promotes performance. The two new differential pressure measuring instruments testo 512-1 and testo 512-2 can be used to measure low and high pressures quickly and precisely, when checking heating systems for example. The all-new testo 512 manometers offer users a reliable tool for pressure measurement in industrial applications or for checking filters and Pitot tube measurement on air conditioning and ventilation systems.
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www.acr-news.com • February 2023 37
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