Initially, the project was evaluated and reviewed by the technical and engineering team of Avesh Sepidar Sepehr Company, and in the next stage, capacity measurement was carried out considering the residential nature, the area of ​​each unit, and the comfort temperature. After final approval, the Mini VRF system from the Media brand was selected for this project. Which was implemented for each floor in the form of an external unit with a capacity of 25 kW, two indoor ceiling duct units with a capacity of 7.1 kW, one indoor ceiling duct unit with a capacity of 3.6 kW, and two wall-mounted indoor units with a capacity of 3.6 kW. The total capacity of this project is 150 kW, equivalent to 510 thousand BTU.