Apparatus for heating, refrigerating and water supply purposes; machines, apparatus and installations for heating and or cooling of water; machines, apparatus and installations for the distribution and regulation of water; machines, apparatus and installations for the filtration, purification, softening, descaling, decalcifying, decontamination of water; chlorinating units (water purifying apparatus and machines); dispensers for hot and cold water; refrigeration units and installations; parts, fittings and accessories for all the aforesaid goods