Design and implementation of the air conditioning system for the Ring Trade Center. Air Conditioned area is 24,000 m2. The trade center includes shops, restaurants, bars, gym, offices, apartments, and a Conad Hypermarket. General Air Conditioning is done with DAIKIN VRV IV, Heat Recovery with centralized control including (Ventilation with humidity control). Total system capacity is at 3.2 MW (thermal), with 572 indoor units (cassettes or hidden), 50 outdoor units.