A condenser unit used in central air conditioning systems typically has a heat exchanger section to cool down and condense incoming refrigerant vapor into liquid, a compressor to raise the pressure of the refrigerant and move it along, and a fan for blowing outside air through the heat exchanger section to cool the refrigerant inside.
Storage tanks are containers that hold liquids, compressed gases or mediums used for the short- or long-term storage of heat or cold. The term can be used for reservoirs, and for manufactured containers.
A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.Pressure vessels can be dangerous, and fatal accidents have occurred in the history of their development and operation.