Air conditioners; air-handling units; cooling apparatus; heating apparatus; air-conditioning installations for clean room (dry room); pressure relief apparatus for use with gas installations; pressure relief valves for gas apparatus; pressure supervision apparatus; freezers; temperature regulators for central heating radiators; air humidifying apparatus; air humidifiers; evaporators for air-conditioning apparatus; air-conditioning installations for sanitary purposes; industrial dehumidifiers; electric dehumidifiers for household purposes; heating and cooling systems for ships; heating and cooling systems for aircrafts; air-conditioning apparatus for industrial use; filters for the purification of flue gases for industrial purposes; filters for the purification of flue gases for household purposes; gas purification apparatus; gas scrubbing apparatus; gas condensers, other than parts of machines; air purifying apparatus and machines; ionisation apparatus for the treatment of air; air deodorising apparatus; water supply installations; cooling appliances and installations; heating and air conditioning apparatus; refrigerating apparatus and installations (other than for vehicles); apparatus for dehydrating food waste; sterilizing and disinfection apparatus for medical purposes; heating and cooling systems for motor cars, not being parts of engines or motors; heating and cooling systems for railway vehicles; ventilating installations

installation of ventilation (air-conditioning) installations for buildings; installation and repair of air conditioning systems; repair or maintenance of air conditioning apparatus for industrial purposes and providing information relating thereto; advisory services relating to the installation of heating and cooling apparatus; installation of heating and cooling apparatus; installation and repair of heating, ventilating and air conditioning systems; installation and repair of heating and air conditioning apparatus; freezing equipment installation and repair; installation, maintenance and repair of refrigerating apparatus; installation of room coolers; installation, maintenance and repair of boiler systems; installation and repair of air conditioners; installation, maintenance and repair of air conditioning systems; installation, maintenance and repair of cooling and air conditioning systems for temperature-controlled environments; installation and repair of air-conditioning and heating equipment by ground heat; installation of air conditioning apparatus for use in clean rooms; repair or maintenance of freezing machines and apparatus; repair or maintenance of heating and cooling systems for motor cars; installation/maintenance and repair of air cooling heat exchangers; installation of air-conditioning and heating systems