11
Heating, ventilating, and air conditioning and purification equipment (ambient); HVAC systems (heating, ventilation and air conditioning); Installations for central heating; Air filtering installations; Air heat recovery installations; Installations for airing; Installations for air extraction; Air heating installations; Ventilating installations; Window-mounting air-conditioners [for industrial purposes]; Room air conditioners; Combined heating and air conditioning apparatus; Air cooling apparatus; Apparatus for ventilating
37
HVAC (Heating, ventilation and air conditioning) installation, maintenance and repair; Installation of apparatus for air-conditioning; Installation of apparatus for ventilating; Installation, maintenance and repair of air-conditioning apparatus; Installation and repair of air-conditioning apparatus; Installation, repair and maintenance of heating equipment; Maintenance of electronic or air conditioning systems; Retrofitting of heating, ventilating and air conditioning installations in buildings; Retrofitting of ventilating installations in buildings; Maintenance and repair of air conditioning apparatus; Maintenance and repair of ventilating apparatus; Repair or maintenance of air conditioning apparatus; Repair of air conditioning apparatus; Repair of ventilating apparatus; Repair of heat recovery apparatus; Refurbishment of air conditioning plant; Routine servicing of air conditioning apparatus; Routine servicing of heating apparatus; Routine servicing of ventilating apparatus; Advisory services relating to the installation of heating and cooling apparatus; Air conditioning contractor services; Heating contractor services; Retrofitting of air conditioning installations in buildings; Providing information relating to the repair or maintenance of air conditioning apparatus
42
Engineering consultancy relating to design; Design services; Consultancy in the field of technological design; Advisory services relating to building design; Technical design services relating to heating installations; Technical design services relating to cooling appliances and installations