9
Physical, electric and electronic measuring, control and regulating apparatus, and control valves, in particular for heating installations and heating regulators; Regulating valves; Time-delay programming devices; Thermostats; Data carriers of all types; Computer software; Electric and electronic installations and apparatus for the remote control of heating, ventilating, air conditioning, water supply and steam generating installations and solar collectors and photovoltaic installations; Signalling apparatus; Photovoltaic installations, mainly consisting of solar modules for generating electricity, impedance converters, control and regulating apparatus and parts therefor; Electrical/electronic regulating and safety accessories for photovoltaic installations
11
Apparatus for heating, ventilating, refrigerating, drying, water supply and steam generating apparatus, in particular oil, gas and dual-fuel burners, and non-electric parts therefor; Air conditioning installations and parts therefor, in particular fans, heater parts, cooler parts, washer parts, mixing and ventilating parts, sound damping parts, tubular heat exchangers, rotary heat exchangers; Heating plants, mainly consisting of boilers, oil, gas or dual-fuel burners and/or solar collectors, heat acumulators, control and regulating apparatus, hydraulic distributors, circulation pumps and parts therefor; Lighters; Hot water tanks and boilers; Heating and recirculating pumps (heating technology); Thermal solar collectors and heating installations consisting of solar collectors, and parts therefor; Regulating and safety accessories for solar collectors, photovoltaic, oil and gas installations and pipes, water apparatus and pipes; Electro-storage blocks; Combined heat and power generating installations, and parts therefor; Water heaters, mainly consisting of heat exchangers and reservoirs
37
Installation, assembly, maintenance and repair of heating, ventilating, water supply and air conditioning installations, and solar collectors and photovoltaic installations
42
Technical consultancy and architectural and construction planning in the fields of heating, ventilating, solar, photovoltaic and air conditioning technology, in particular for heating technology installations and air conditioning installations, as well as installation, assembly and maintenance thereof; Construction drafting, technical project studies; Research and development in the field of technology, in particular heating, ventilating, solar, photovoltaic and air conditioning technology; Surveying; Surveying; Rental, maintenance, updating of computer software, computer programming