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Tendered items:•1 stand-alone compact ventilation unit with heat recovery up to 500 m³/h•2 stand-alone compact ventilation units with heat recovery up to 900 m³/h•approx. 80 m² galvanized air duct / fittings•approx. 400 m spiral-lock seam duct DN100 – DN250•27 compact / telephone sound attenuators•2 fire protection dampers with actuation•11 iris dampers•1 roof exhaust hood DN 200•6 weather protection grilles•14 swirl diffusers / long-throw nozzles•10 round duct louver inlet DN 200•3 ventilation grilles for supply / extract•28 supply / extract air valves•11 make-up air valves•4 ceiling cooling units for chilled water•drilling•ancillary works•dismantling works•maintenance contract

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