What service does air conditioning installation belong to?

Air conditioning installation belongs to building service. Construction services refer to the construction, repair and decoration of various buildings, structures and their ancillary facilities, the installation of lines, pipelines, equipment and facilities, and other engineering operations. Including engineering services, installation services, repair services, decoration services and other construction services. Installation service refers to the assembly and installation of production equipment, power equipment, lifting equipment, transportation equipment, transmission equipment, medical experimental equipment and other equipment and facilities, including the installation of workstations, ladders and railings connected with the installed equipment, as well as the insulation, anti-corrosion, heat preservation and painting of the installed equipment.