Glycol refrigeration technology

Air-cooled glycol water chiller plants and air coolers.

Glycol refrigeration technology is nowadays very popular in indirect refrigeration systems, as it avoids possible refrigerant leaks in the installation.

This technology consist of using water with glycol as a secondary fluid in the installation. For this reason, the glycol acts as an antifreeze accompanied by a main circuit charged with another refrigerant. Therefore, this technology based on the use of glycol is born as an ecological alternative with the aim of reducing the environmental impact caused by the 100% use of systems with other refrigerant gases.

Currently, glycol refrigeration is mainly combined with the refrigerant gas R290, as together they have a very effective performance in chiller plants.

Indirect refrigeration systems


 In indirect glycol refrigeration system, the refrigerant exchange is carried out by an intermediate fluid, usually water, glycol or brine. This fluid is responsible for the refrigeration power exchange with the refrigerant gas, which is stored in a cooling tank. Later, the cooled fluid is pumped to the final elements of the system such as coils, air coolers, exchangers…While in direct systems, the compressed and condensed refrigerant is responsible for distributing the cooling power to the evaporator units.

  • Environmental sustainability, due to the low refrigerant charge in the equipment and consequently in the distribution lines of the installation.
  • Energy efficiency, thanks to its performance.
  • Its chemical properties result in less refrigerant gas charge in the system and reduce the risk of leakage.
  • It does not contaminate, because it is biodegradable.
  • Circuit free of refrigerant leaks.
  • Energy efficiency.
  • It reduces the refrigerant charge to a minimum due to its use with a secondary refrigerant circuit.
  • Reduced maintenance.
  • Electrical and hydraulic groups are integrated in the refrigeration plant.
  • Easy installation.
  • High power in a small space.


At INTARCON we have a wide range of products adapted to all possible refrigeration solutions. In addition, a technical advice service and our online refrigeration calculator, based on finding the solutions adapted to your needs.