Installation. In order to avoid contamination of the heat exchange surface and, as a consequence, reduction of efficiency, it is necessary to install filter elements before the supply and exhaust air inlet to the recuperator. Application. AirM RT rotary recuperators are designed for utilisation of exhaust air heat energy in ventilation and air conditioning systems. Plate recuperators of floor AirM 2 and suspended AirM 1 versions are designed for utilisation of exhaust air heat energy in ventilation and air conditioning systems. Design and materials. RT. AirM RT rotary regenerators are available in eight sizes. The heat exchange surface is a rotating drum of wave-shaped aluminium belts providing highly efficient heat transfer. The regenerators are fitted with brush seals to minimise crossflow between supply and extract air and a condensate collection tray. Rotor rotation by three-phase induction motor and belt drive. Operating temperature range of the flowing air from -40°C to +70°C. 1 и 2. AirM 1 plate recuperators are available in eight and AirM 2 in five sizes. The heat transfer surface is a package of specially profiled 0.2 mm thick aluminium plates with a spacing of 5 to 9 mm between them, ensuring highly efficient heat transfer. All recuperators are equipped with both a bypass for frost protection and a profiled plastic drift eliminator and drip tray with a condensate drain with G 1/2" female thread. Operating temperature range of the flowing air from -40°C to +70°C. Regulation and protection. A frequency converter is used for frost protection and to maximise performance.