Double reversible thermodynamic flow integrated mechanical controlled ventilation device for e.g. individual dwelling, has section oriented vertically upward for connection to four-way valve, where all sections are connected by bends

摘要

The device has a first vertical section, a second horizontal section, and a third horizontal section arranged perpendicular to a plane of first and second sections. A fourth section is arranged vertically, and a fifth horizontal section is arranged parallel to the second section. A sixth section is vertically oriented, and a seventh section is arranged parallel to the third section. An eighth section is oriented vertically upward for connection to a four-way valve (4), where all sections are connected by bends.