A DX system is a cooling system where the primary coolant is used for evaporation. DX systems are typically used with very small, stand-alone systems, but they can also be used in large industrial cooling systems.
A DX system is a cooling system where the primary coolant is used for evaporation at the location where the cooling is required. This is the opposite of a cooling system that cools a secondary liquid coolant, such as glycol or brine, which is then pumped through the pipe system to the locations that require cooling.
DX systems are typically used with very small stand-alone systems for single locations, but they can also be used in large industrial cooling systems that have many locations that require cooling. The choice of system depends on a large number of factors, such as price, regulations, ambient temperature and the choice of primary coolant.
Some of the older traditional coolants are harmful to the environment and are either banned or being phased out in many countries. Primary coolants have different operating temperature ranges. The choice of material depends on the type of coolant, and this can have a large effect on the price.