Since the air-conditioning works are linked to the various stages of construction, starting with building walls and ending with paint, coordination must be made at each stage of construction with the interior designer or supervisor responsible for that stage. The beginning: The design department in MCC works on designing the shop plans for air conditioning that show the locations of the internal units, the duct path, the air outlets (Grill), the places for planting copper pipes, and the locations of the external units on the plan, and then they are sent to the client for information and approval for the establishments. After the approval of the plan for the establishment, the following stages are carried out according to the readiness of the site: Cultivation of pipes that copper passes through during the construction stages for each role separately, and before casting ceilings or retaining walls, starting with the basement, if any. Establishing air conditioner drainage pipes to the nearest drainage point. Establishing the thermostat wires. Marking the holes in the walls of the duct and copper extension before the despair works and after the completion of the electrical installations. The studies department matches the executive plans with the gypsum ceiling plans sent by the decorator, and after completing them, they are sent back to the owner for final approval. After approving the plan in the final form, the following stages are carried out according to the readiness of the site and the desire of the customer: Installing indoor units, connecting them to water drainage pipes, thermostat wires, and connecting copper. Detailing the ducts and air outlets (Plenum Box) in the factory, then supplying and insulating them on the site and installing them, including flexible connections, and all hangers (Dumber), all according to international specifications (SMACNA). Installing external units on the roofs according to the places previously agreed upon with the client, and often on the upper and last roof, and they are installed after the completion of the tiling and isolating the roof Finally, the installation of the air outlets (Grill), and the installation shall be after the first face of the paint. Then install the thermostat and check the electrical connections. Finally, the initial run for 72 hours to ensure the effectiveness and efficiency of the air conditioning.

The possibility of directing air to more than one area through ducts. The absence of noise from the indoor unit is due to its distance from the air-conditioned place and its presence often in the corridors. It is easier to maintain and lower in electricity consumption compared to central air conditioning. Average installation cost compared to other systems.

Each of the air conditioning systems “hidden air conditioning, wall air conditioning, cassette, wheel, central air conditioning, and desert air conditioning” have architectural and construction requirements that must be taken into account when choosing the appropriate air conditioning system. the design. For example, the height of indoor units and air ducts ranges between (30 cm to 50 cm). Then comes the gypsum work, which also occupies a space of approximately 10 cm. The height of the ceiling must be taken into account, to be at least 3.40 meters, to accommodate these spaces.