REFRA, UAB - Unique Cooling Solutions

CO2 Industrial is a customizable transcritical rack, designed mainly for industrial application. Special “reach-in” container option for outdoor installation provides convenient and efficient unit service. This type can be assembled with maximum of 6 reciprocating compressors per stage (MT/LT) and provide cooling capacity ranging from 50 kW to 500 kW. This model is assembled with 6-cylinder compressors, resulting in bigger dimensions and larger power supply. GREEN SOLUTIONS | This unit is a part of Refra‘s environmentally friendly product group, as it is made using CO2 refrigerant. Such low GWP solutions are designed to have better efficiencies and capacities, as well as less environmental damage.

CO2 Container is a new generation solution that covers most refrigeration needs. It combines both transcritical and subcritical CO2 systems with a unique AR frame, designed exclusively by Refra. Cooling capacity of this product ranges from 50 kW to 600 kW, meaning that it can be designed for various applications. The special design of the walk-in container is ideal for buildings where indoor installation is not possible. It can be placed right next to the building or on the roof, which will not only reduce installation costs, but will also allow easy unit maintenance. For maximum safety, the container is equipped with a special leak detector that responds to gas leaks quickly and lets prevent malfunctions. Additional options, such as illumination, ventilation and cooling can be installed inside the container to make the service of the unit even more convenient.

CO2 Cascade units are perfectly suited for high temperature climate. This system consists of two refrigeration systems connected via heat exchanger, where one evaporates, the other condenses. Such combination provides either low temperature refrigeration or both: low and medium temperature refrigeration with different refrigerants. Low temperature units can be designed with CO2 and a flooded system to ensure better heat exchange, while medium temperature units obtain a truly cost-effective and environmentally friendly solution when produced with HFC and HC refrigerants. At high ambient temperatures, conventional refrigeration systems require a large amount of energy, whilst propane works perfectly in such conditions. GREEN SOLUTIONS | This unit is a part of Refra‘s environmentally friendly product group, as it is made using natural refrigerants. Such low GWP solutions are designed to have better efficiencies and capacities, as well as less environmental damage.

LT Liquid cooled systems are designed to supplement the existing refrigeration arrangement with an already installed chiller. This unit can be cooled by glycol provided from a currently existing chiller and provide additional low temperature cooling. It is perfect for achieving particularly low refrigeration temperatures that can go down to -35 °C degrees. Such solutions are mostly used for warehouse cooling and other industrial applications. GREEN SOLUTIONS | This unit is a part of Refra‘s environmentally friendly product group, as it is made using natural refrigerants. Such low GWP solutions are designed to have better efficiencies and capacities, as well as less environmental damage.

Small to medium capacity condensing units, designed for commercial and industrial applications such as food and beverage manufacturers, convenience stores, petrol forecourts and cold rooms. Assembled with reciprocating compressors the units provide a cooling capacity from 12kW to 55kW. These condensing units are an optimal choice for conventional refrigeration systems – affordable, small in size and easy to install. The units can be built outdoors, but additional shelter against rain or snow should be provided. Assembled with copper aluminium fin condenser, Bitzer or Copeland compressors with crankcase heater, high efficiency AC/EC axial fans and a liquid receiver. Built on an open welded galvanized steel frame with powder coating.

Small capacity condensing units with the cooling capacity from 15kW to 40kW. Designed on a compact frame, perfectly suitable for small commercial applications such as convenience stores, petrol forecourts, cold rooms and more. Assembled with copper aluminium fin condenser, Bitzer reciprocating compressors with crankcase heater and high efficiency AC/EC axial fans. Built in a closed steel frame with a polymer powder coating and condenser protection grid. Electric panel includes phase rotation and phase loss monitoring relay, compressor and fan motor overheat protection, contactor and main switch. Additional assembly options are available.

Small capacity condensing units, designed for small commercial applications such as convenience stores, petrol forecourts and cold rooms. Assembled with scroll or digital scroll compressors, designed for MT or LT applications. This model is built on a smallest condensing unit frame and provides a cooling capacity from 10kW to 30kW. Assembled with copper aluminium fin condenser, Copeland compressors with crankcase heater, high efficiency AC/EC axial fans and a liquid receiver. Built in a closed galvanized steel frame with polymer powder coating and additional insulation for silent unit operation. Electric panel includes phase rotation and phase loss monitoring relay, compressor and fan motor overheat protection, contactor and main switch. Additional assembly options are available.

Wide range capacity liquid cooled condensing units, designed for commercial and industrial applications with the cooling capacity from10 kW to 40 kW. These units work on a principle of the heat rejection loop, where condenser heat is dissipated to the environment via water. Rejected heat can be used for additional needs in the same building, which gives these facilities additional economic benefits. These units provide an economical, compact alternative to traditional air-cooled condensing units. Built on an open welded frame with bent profile and powder coating, these condensing units carry a plate heat exchanger. Can be assembled with 1 to 4 reciprocating or scroll compressors with crankcase heater, a liquid receiver, refrigerant filters and a sight glass. Safety valve and pressure switches are added to increase the security of the unit.

Wide range capacity liquid cooled condensing units, designed for commercial and industrial applications with the cooling capacity from 10 kW to 40kW. These units work on a principle of the heat rejection loop, where condenser heat is dissipated to the environment via water. Rejected heat can be used for additional needs in the same building, which gives these facilities additional economic benefits. These units provide an economical, compact alternative to traditional air-cooled condensing units. Built on an open welded frame with standard profile, this condensing unit is also available in a double-deck construction for higher capacity. Assembled with shell and tube or plate heat exchanger, 1 to 4 scroll or reciprocating compressors and a liquid receiver as well as refrigerant filters and a sight glass. Safety valve and pressure switches are added to increase the security of the unit.

Wide range capacity liquid cooled condensing units, designed for commercial and industrial applications with the cooling capacity from 10kW to 40kW. These units work on a principle of the heat rejection loop, where condenser heat is dissipated to the environment via water. Rejected heat can be used for additional needs in the same building, which gives these facilities additional economic benefits. These units provide an economical, compact alternative to traditional air-cooled condensing units. Built on an assembled frame with covers, this condensing unit can be designed in a variety of ways, depending on intended use. Collected with shell and tube or plate heat exchanger, 1 to 4 reciprocating or scroll compressors and a liquid receiver as well as refrigerant filters and a sight glass. Safety valve and pressure switches are added to increase the security of the unit. An additional 50 mm rock wool insulation can be supplemented for a super silent unit operation.