7
Machine parts for installations in the field of heating and refrigeration; Pumps [machines]; Apparatus and instruments for controlling and regulating heating and refrigerating installations, namely installations for generating energy, cold, heat, compressed air, and for distributing these media, included in class 7
11
Installations in the field of heating and refrigeration, namely installations for generating energy, cold, heat, compressed air, and for distributing these media, included in class 11; Aerating and ventilating installations; Air-conditioning installations; Installations for airing; Heating installations, except heating and solar installations, not for industrial purposes, in particular except tile ovens, fireplaces, stoves, chimneys
37
Repair and installation of heating and refrigerating system installations, ventilating and aerating installations, heating installations, except repair and installation of heating and solar installations, not for the industrial sector, in particular tiled ovens, fireplaces, stoves, chimneys, ventilating and air conditioning installations
42
Technical consultancy relating to the installation and operating of energy installations, in particular installations for heating and refrigeration, air-conditioning installations, heating installations, installations for airing; Development of plans for fitting and operating energy installations, in particular installations for heating and refrigeration, air conditioning installations, heating installations, aerating installations; Technical consultancy in the development of energy concepts; Technical consultancy in the field of emissions protection, the aforesaid services other than in connection with heating and solar installations, not for the industrial sector, in particular other than in connection with tiled stoves, fireplaces, stoves, chimneys