the exchanger wheel has a rotational speed of 0 rpm. Thus a ventilation apparatus of the present invention may comprise a component for stopping, during a defrost cycle, a rotary exchanger wheel from rotating. A ventilation apparatus may, for example, comprise an electric motor for inducing ...
A unitary heat exchanger device, for the transfer of total heat, comprising air-to-air heat transfer means and configured such that air may pass there through. The heat transfer means comprises an air-to-air water vapor transfer element and an air-to-air sensible heat transfer element, th...