The renaissance of small refrigeration systems

Small refrigeration systems are becoming more and more popular. The F-Gas Directive of August 2017, restricting the use of HFC refrigerants (high GWP), gave a strong impetus to the revision of the existing solutions and forced the re-evaluation of various aspects of the refrigeration system, such as the choice of the refrigerant, its GWP, flammability class, scope of application , availability, investment cost for various solutions, energy consumption, level of plant reliability, sensitivity to refrigerant leaks, cost of servicing and much more.

Cool condensing units of the MINI series in direct cooling systems at the Artisanal Tapas plant in Szczecin.

New cooling installations, which are currently designed in accordance with the F-Gas Directive, are primarily indirect cooling systems using ecological refrigerants in chilled water units and a certified coolant ( liquid ) supplying final cooling devices like coolers or small direct evaporation systems of the refrigerant. Cooling systems based on the HFC refrigerant used until recently as extensive pipeline systems supplying dozens of cooling receivers, cooperating with multi-compressor systems located in machinery rooms and condensers on the roofs, are replaced by smaller systems with ecological refrigerants. In accordance with the guidelines of the F-Gas Directive, commercial refrigeration devices with a capacity of less than 40 kW are not covered by the low GWP limits for the refrigerant, hence the interest in the offer of small distributed systems in the commercial segment, i.e. stores, is clearly visible.

Condensing units in the standard Cool version during factory assembly

The ARTISANAL TAPAS industrial plant in Szczecin, the flower producer JMP FLOWERS and Meat Factory LUKULLUS near Nowy Dwór Mazowiecki, and the TOPAZ chain of stores have decided to order such cooling installations from PPH COOL. Small refrigeration systems in the form of condensing unit and from one to three cooling devices (fan coolers) with a refrigerant (R448A, R449A), multiplied depending on the required total cooling capacity, have several undeniable advantages. These types of solutions, compared to large installations with one cooling source, allow to diversify the occurrence of possible problems with the installation. In this case, the failure of one system allows you to maintain the continuity of the entire plant and not turn off the entire cooling system, but only a single one. In the event of a leak in a single batch system, the loss of refrigerant due to low loading does not represent a large cost and environmental loss. Repair is also easier and cheaper. PPH COOL offers a whole range of condensing units and compressors power packs in various versions and with different compressors. The strandard versions are the simplest models without a casing, others are aggregates in a MINI and COMPACT casing. The company's offer includes coolers (e.g. STEFANI brand), fittings and refrigeration automation for completing sets.