Parts for constructing combined heat and power installations, namely, combustion engines, electric generators; engines except for land vehicles, internal combustion engines for combined heat and power stations

Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, power supplies, converter, batteries, electric switches; physical, electric and electronic measuring, controlling and regulating apparatus, namely, electronic control systems for heating, ventilation and air conditioning

Apparatus for heating, steam generating, cooking, refrigerating, drying, ventilating and sanitary purposes, namely, gas water heaters, electric water heaters, and heat pumps, combined heat and power systems comprised of heat exchangers, flues, pumps, valves, pipes, control-panels, and duct work, all sold as a unit; air ventilation systems, namely, central ventilation systems and de-central ventilation systems all comprised of ventilation hoods, air impellers, turbine ventilators, and ventilation units for commercial food preparation and serving; air conditioning systems, namely, split air conditioners for indoor and outdoor use, installations for generating thermal energy from solar collectors