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An air handling unit (AHU) is a unit that helps to maintain indoor temperature and air flow in high quality. Swegons GOLD and SILVER C RX units are designed for comfort ventilation. To ensure superior performance, Swegon designs their own components, such as the rotary heat exchanger, fan impeller and control equipment. Units with rotary heat exchangers allow to achieve the ultimate in temperature and annual energy efficiency; heat exchangers with turbulent air flow being uniquely effective. This combined with the short installation length typically makes them the first choice for most applications. The turbulent flow in the rotor and the Carry-Over Control feature makes them ideally compatible with VAV and DCV system applications. Swegon’s GOLD and SILVER C RX units are designed to minimize the risk of air and odor transmission between the air flows. The reference unit weight of a Swegon AHU in size 011/012 is 488 kg, however the weight can differ between different configurations. In terms of material content, an AHU consists primarily of steel, aluminium, different types of polymer materials, insulation material and electronic components. AHUs are expected to be used for 20 years before they reach end of life.