A chiller or freezer is a machine consisting of a thermally insulated compartment and a heat pump that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. It is widely used to store products that need to be kept in cooled condition.
Types of chillers: single door / double door / triple door
Types of freezers:
-chest / up-right
-low temperature: -20 / -40 / -80 deg. Celsius