Heat recovery device in the ventilation system

Abstract

The invention relates to ventilation technology, in particular to a ventilation unit with heat recovery intended for installation in the outer wall of a building. The unit comprises an internal, external and central module with a plate recuperator of the counter-flow or cross-flow type, fans located in different chambers of the intake and exhaust ducts, partitions that prevent mixing of air flows and a condensate drainage system. The designs provide heaters for preheating and / or post-heating of the air, filters in the intake chambers, mechanical dampers and / or gravity valves and a thermal insulation casing. This achieves high efficiency of heat and air exchange, prevents the accumulation of condensate and icing of the unit in cold climates and ensures the supply of clean and conditioned air to the space.