Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; air handling units; chillers; heat pumps; indoor climate control systems for regulation of ventilation and temperature; supply and extract air diffusers; climate beams for cooling and heating of air; cooling and heating induction units; acoustic louvres being ventilating apparatus with noise reduction functions; acoustic silencers being parts of ventilation [air-conditioning] installations

Construction, repair, and maintenance of heating, ventilation and air conditioning apparatus and systems

Training services in the field of operation and maintenance of heating, ventilation and air conditioning systems

Commisioning services, namely, inspection and testing of heating, ventilation and air conditioning systems; remote monitoring services of heating, ventilation, and air conditioning apparatus and systems