Open frame - Import export

Free cooling system consists of a heat exchanger that cools down glycol mixture by using low temperature ambient air. When outdoor temperatures are lower relative to indoor temperatures, the system utilizes the cool outdoor air as a free cooling source. These energy-efficient units are perfect for industrial refrigeration or air conditioning processes, as they help to reduce mechanical energy consumption up to 80% and reduce maintenance costs as well as environmental impact. Open frame construction can be assembled with high-quality EC fan motor technology, finned tube heat exchanger, 3-way valve and circulation pump. The galvanized steel and powder coated frame ensures proper protection of the internal unit construction.

High capacity condenserless chillers with the cooling power from 140 kW to 2 MW are perfectly suitable for medium to large industrial or large commercial applications. These chillers are mounted with a separate remote condenser that is built outdoors. The rest of the equipment is installed in a special technical room in the building. Refra can offer a condenserless chiller that can be connected to an existing condenser or a complete system with Refra condensers. CS Condenserless chillers are assembled on a welded open frame, equipped with maximum 4 screw compressors and shell and tube heat exchangers. They are usually chosen when there are sound restrictions in the project. The louder part of the system is built in an isolated room and the quiet condenser is built on the roof. The whole system is connected by a pipeline for refrigerant circulation and absorbed heat rejection. Refra manufactures modern devices using plug-and-play

High capacity liquid-cooled chillers with the cooling power from 140 kW to 2 MW are perfectly suitable for medium to large industrial or large commercial applications. These chillers can be integrated with a dual liquid system, where the condenser uses glycol mixture and the evaporator uses water for the refrigeration process. Due to the glycol-free ability, CS chillers are ideal for particularly sensitive equipment that requires refrigeration with clean, distilled water. CS chillers are assembled on a welded open frame, equipped with maximum 4 screw compressors and shell and tube heat exchangers. Usually stored in special technical rooms and connected to secondary devices such as cooling towers or dry coolers to reject the absorbed heat to an additional fluid loop. Refra manufactures modern devices using plug-and-play ideology, making the installation and use of the devices as easy as possible.

Extra large capacity air-cooled chillers with the cooling power of 120 kW to 1400 kW are designed for immense industrial and commercial buildings with high-power demand. CF series chillers are able to provide the highest cooling capacity of all the chillers produced by Refra. The intricate design of the open frame makes it possible to produce a unit with extremely powerful, high-quality parts. These units can be assembled with a built-in hydraulic module, as well as additional free cooling (possible with hybrid coils) or heat recovery options. Exposed frame construction and special perforated doors provide greater air movement and absorption, so the chiller can operate at high capacity without interruption. Two to four circuits can be added to ensure continuous system operation in case of emergency – if one circuit is damaged, the others can still use the remaining unit capacity to service the end user.

Wide range capacity compressor packs with cooling capacity from 7 kW to 170 kW, perfectly suitable for various size applications. Scroll compressor packs are perfectly suitable for the cooling of shops, cold rooms and general air conditioning systems. The compressor pack can also be part of a larger refrigeration system. It is possible to choose the compressor pack for an existing condenser or purchase a compressor pack together with Refra condenser for convenience. Assembled on an open welded frame with standard profile, this compressor pack is also available in a double-deck construction for higher capacity. Compressor pack also includes refrigerant filters, a receiver and a sight glass. Safety valve and pressure switches are added to increase the safety of the unit.

Wide range capacity compressor packs with cooling capacity from 50 kW to 900 kW, perfectly suitable for various size applications. Screw compressor packs are perfectly suitable for the cooling of ice rinks, production area or equipment and other industrial applications. Compressor packs can also be part of a larger refrigeration system. It is possible to choose the compressor pack for an existing condenser or purchase a compressor pack together with Refra condenser for convenience. Assembled on an open welded frame with standard profile, this compressor pack is also available in a double-deck construction for higher capacity. Compressor pack also includes refrigerant filters, a receiver and a sight glass. Safety valve and pressure switches are added to increase the security of the unit.

Wide range capacity compressor packs with cooling capacity from 25 kW to 500 kW, perfectly suitable for various size applications. Reciprocating compressor packs are perfectly suitable for the cooling of large warehouse areas as well as other industrial buildings. The compressor pack can also be part of a larger refrigeration system. It is possible to choose the compressor pack for an existing condenser or purchase a compressor pack together with Refra condenser for convenience. Assembled on an open welded frame with standard profile, this compressor pack is also available in a double deck construction for higher capacity. Compressor pack also includes refrigerant filters, a receiver and a sight glass. Safety valve and pressure switches are added to increase the security of the unit.

Wide range capacity compressor packs with cooling capacity from 25 kW to 500 kW. Designed for commercial applications with a wide range of power demand. Reciprocating compressor packs are perfectly suitable for the cooling of large warehouse areas as well as other industrial buildings. The compressor pack can also be part of a larger refrigeration system. It is possible to choose the compressor pack for an existing condenser or purchase a compressor pack together with Refra condenser for convenience. Assembled on an open welded frame with bent profile, this compressor pack is ideal for small spaces due to its small size. Compressor pack also includes refrigerant filters, a receiver 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 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.

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.