In order to centrally adapt any facility, the nature of the facility, the number of personnel and equipment in it must first be studied, the temperatures during the year in the place of this facility and the location of the facility geographically with the materials used in the construction of this facility and the extent of its resistance and isolation from the external air temperature. With all these factors, the necessary thermal calculations are made. To adapt this place centrally, and a comparison is made between the systems that can be used in this place in terms of the initial cost and the operational cost, and what is the implementation of this system and the space required for the equipment and central air conditioning devices in the facility, and after studying all these factors, we can choose the appropriate central air conditioning system for the place