Cooling appliances and installations; cooling appliances, installations and apparatus for fluids; cooling installations, appliances and apparatus for liquids; cooling installations, cooling coils; appliances and apparatus for oils; oil cooling installations, appliances and apparatus; installations, appliances and apparatus for cooling one fluid or liquid, such as an oil, by heat exchange with another fluid or liquid; heat exchangers, including aluminium core heat exchangers and coolers, finned tube heat exchangers, shell and tube heat exchangers, and double tube shell and tube heat exchangers; plate heat exchangers; brazed plate heat exchangers; double-walled brazed plate heat exchangers; gasket plate heat exchangers; double-walled gasketted heat exchangers; cooling and heating coil condensers; coils (parts of cooling installations)