BRANCHED DUCT-TYPE AIR CONDITIONING SYSTEM FOR PURIFYING THE ROOM BY EXHAUSTING POLLUTED AIR AND SUCKING IN THE FRESH AIR INTO AN INDOOR DEVICE OF AN AIR CONDITIONER AND REGULATING COOLING/HEATING PERFORMANCE ACCORDING TO TEMPERATURE CHANGE OF THE INFLOW OF THE EXTERNAL AIR

摘要

PURPOSE: A branched duct-type air conditioning system is provided to purify the space by exhausting the polluted air to the outside and inserting the fresh air, to control automatically cooling/heating performance according to temperature rise of the external air, and to increase operation efficiency by reusing thermal energy of the polluted air. CONSTITUTION: A branched duct-type air conditioning system is composed of air conditioners; a supply duct(10) for feeding the air into plural spaces(S) independent from an indoor device(1); a return duct(20) for inserting the internal air of each space into the air conditioners; a control unit for operating the air conditioners; an exhaust mechanism(31) for discharging the internal air of each space to the outside; and a supply mechanism(33) for feeding the external air into the air conditioners. The supply mechanism is connected to the side of the return duct.