Hydroloop system is a cost-effective solution for shops, which allows connecting the plug-in refrigeration equipment to liquid-cooled system, in which excess condensation heat is removed through liquid pipes to the exterior of a building. Closed-cycle liquid system with water pump ensuring circulation and outdoor dry cooler are used for the effective heat recovery system.

Hydroloop solution can be connected to Freor refrigeration multidecks, semiverticals, serve-over counters and freezers. It is fully integrated refrigeration technology which eliminates the need for complicated refrigeration systems and extremely simplifies system mounting works.

Environmentally-friendly propyl glycol solution is used for heat removal. Excess heat can also be used to warm up the shop during cold season or to warm up water. This innovative system guarantees high efficiency, faster shop installation, saves space, gives freedom of equipment relocation, uses smaller quantities of refrigerant and is simpler to look after. Decentralised operation of refrigeration equipment allows avoiding losses which could be caused by interruption in central refrigeration system. All these advantages cut down costs and save your money.

Dowload full presentation: FREOR Hydroloop Solution



Hydroloop Glycol

Liquid cooled system with plate condenser.

This environmentally-sustainable solution allows removal of heat from the shop through environmentally-friendly glycol line in summer and additional use of the heat for warming up the shop and water in winter. Decentralised operation of refrigeration equipment allows avoiding losses which could be caused by interruption in central refrigeration system. Your chosen heating system can be additionally installed according to your needs.­­­

• No heat discharge into the shop
• Very small quantity of refrigerant
• Easy installation – saving costs
• No additional room height is needed to secure air flow
• Emitted heat can be used for shop heating
• Easy to integrate with various heating systems

Hydroloop Hybrid

Combined system fitted with air and plate condenser.

This solution allows combining two different heat removal systems with the possibility to switch over the regimes, which guarantees easy use of excess heat for shop needs. Heat is either emitted directly into the shop via air condenser mounted in the equipment (in winter) or removed from the shop via glycol line to the outside (in summer). It allows heating of the shop when needed.

• Direct warm air supply to the shop in winter
• Easy to install
• Easy to integrate with various heating systems
• Hydroloop system can be connected after installation of the refrigerators
• Reliable operation – in case of fault in water circulation, heat is removed via air condenser on the top of the equipment

Hydroloop system is in particular suitable for shops with over 6 refrigeration equipment pieces, usually fitted in rows.

Advantages of the Hydroloop system

Energy efficiency
• Energy-efficient compressors (up to 25% energy saving)
• up to 80% smaller quantity of refrigerant
• Refrigerant leakage only 0–5% (for remote – 10-15 %)
• Discharged condensation heat can be used to warm up the shop

• Sustained solution allowing reduction of impact on environment – 95% less refrigerant leakage
• Small refrigerant quantities if compared with non-autonomous system
• We can offer natural refrigerant propane R290 with the global warming potential GWP equal 3 (with R404A 3922 in case of freon)
• Environmentally-friendly glycol solution is used

Better flexibility
• Format of the shop, location of the equipment can be easily changed in the shop
• It is easy to remove or add any piece of equipment

Lower costs and investments into shop installation
• No need for complex and costly central refrigeration system
• Quick system installation
• Saving shop area as the need for special refrigeration room is eliminated
• Cheaper installation (no need for copper pipelines, specialised refrigeration experts)
• Smaller quantity of refrigerant

Easy installation and cost-effective maintenance
• It is extremely easy to install – refrigeration equipment is factory fitted with all necessary refrigeration components
• No need for certified refrigeration experts for system installation – even plumber can install as the equipment is factory fitted with all the pipes needed for system connection
• No need for welding on site, copper pipes are replaced with simple plumbing pipes
• Lower need for maintenance
• Minimum refrigerant leakage
• Easy replacement of components or piece of equipment without stopping the whole system

High reliability
• Every refrigerator operates as a separate unit, therefore failure in one piece of equipment does not affect the others, and potential loss of products is minimised.
• Every piece of equipment is set at the required temperature; automation ensures operation at necessary intensity of the refrigeration equipment.

Low noise level
• Double sound isolation of the compressor and freezer minimise noise level

Freor Hydroloop solution can also be connected to cold rooms. Freor produces its hydro units which are fitted with compressors and plate heat exchangers. Hydro units can be used at high, medium and low temperatures, are intended to maintain the temperatures of products stored at cold rooms at 0 °C – +2 °C, LT -22 °C – 25 °C.

Our partners will fulfil the solution for you from A to Z. Examples of creative solutions.



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Statistical data about visitors to the FREOR website may be accessed by the FREOR employees working in marketing and commercial divisions that are responsible for data analysis and development of the website. Access to technical records may also be granted to FREOR partners that provide website content management tools or hosting services of the FREOR website. We responsibly protect the collected data about the visitors of the website from loss or unauthorised use.

FREOR uses the collected data for analysis for up to three years.