Fischbach roof top units specially designed for use in exhaust air systems. The complete range is made of weatherproof material and equipped with a 40mm thick insulation. Especially through our EC motor version with integrated pressure-control we achieve an even higher efficiency of the roof top units than with commercially available models. Also in terms of noise level, the integrated FISCHBACH disc rotor motor / EC disc rotor motor with double sound decoupling offers outstanding properties.