Patent ID: 6038879
Filing Date: 2000-03-21
Classification: F24F,Y02B

Abstract:
A combined air exchange and air conditioning unit for conditioning air in a conditioned space, the unit comprising:an exhaust air chamber having an air outlet for connection with an air exhaust location outside the conditioned space;an exhaust blower means for drawing air from inside the exhaust air chamber through the air outlet, thereof;a return air chamber having an air intake for connection with at least one air return location in the conditioning space;a supply air chamber having an air outlet for connection with at least one air supply location in the conditioned space;a supply blower means for drawing air from inside the supply air chamber through the air outlet thereof;a fresh air chamber having an air intake for connection with a fresh air location outside the conditioned space and remote from the air exhaust location;a damper means for regulating air transfers between the chambers, the damper means being movable within a position range defined between a first and a second extreme position, the chambers being connected in pairs independent from one another when the damper means is in the first or second extreme position, the first extreme position allowing a connection of the return air chamber with the supply air chamber and a connection of the fresh air chamber with the exhaust air chamber, the second extreme position allowing a connection of the return air chamber with the exhaust air chamber and a connection of the fresh air chamber with the supply air chamber;an actuating means for moving the damper means within the position range;a heat pump means for reversibly transferring heat between air to be drawn by the exhaust blower means, and air to be drawn by the supply blower means, the heat pump means comprising:a first heat exchanger means for exchanging heat with air to be drawn by the exhaust blower means;a second heat exchanger means for exchanging heat with air to be drawn by the supply blower means;a control means for controlling the actuating means and the heat pump means.