Efficient, reliable industrial recooling
- Power range: 5 - 320 kW
- Application: Water
- Plug & play: Stand-alone plug & play solution
- Compact: 5 - 28 kW on 0.5 m²; up to 160 kW cooling power in only 2 m²
- Optimized: Optional equipping with FleXX technology ensures optimized operation and additional control options
- Flexible: Numerous options available for individualization and efficiency optimization
The proven HYFRA Sigma series for cooling water recooling is equipped with high-efficiency plate heat exchangers making it the ideal industrial water chiller for various applications. In combination with sector-leading HYFRA microchannel technology, the refrigerant used is reduced by up to 70 % in comparison to conventional machines. The low level of refrigerant used for devices with up to 30 kW of cooling power means annual leak tests are a thing of the past and also leads to a reduction in maintenance costs.
No leak tests up to 30 kW and up to 70 % less refrigerant thanks to microchannel technology
Energy costs are perceptibly lower when HYFRA Sigma water chiller systems are used. Because the compressors always function at optimal efficiency, the plate heat exchangers are also extremely energy efficient. A 2-point pressure transducer that constantly regulates system pressure and has an early warning function for leak detection ensures smooth operation.
FleXX technology for demand-based operation
HYFRA Sigma units are also available with the innovative HYFRA FleXX technology that ensures energy-efficient, extremely precise operation with demand-based controls.
HYFRA FleXX technology
With its FleXX technology, HYFRA is reacting to the various market requirements of machine manufacturers and operators. Thanks to its high level of flexibility and adaptability, it ensures a decisive competitive advantage. Due to the demand-based operation of various components, chillers with FleXX technology are not only highly energy-efficient, economical, and quiet; they also operate with very little wear, greatly reducing life cycle costs.
The chillers in the HYFRA Sigma series are equipped with FreeSmart controllers – and with a cooling capacity of 210 kW (60 Tons), they come with FreeEvolution controllers. The two variants are freely programmable and have both analog and digital inputs and outputs, an external display (Free Evolution) and an FDO (fast digital output) interface for quickly reading out operating data. FreeEvolution is available in three design variants: basic, professional and expert. For example, they offer menu navigation in multiple languages or remote maintenance linkup. Of course we can flexibly integrate special customer requirements into each of the variants.
Our Sigma c series for cooling water offers reliable cooling capacity of up to 16 kW in a compact design. Designed to save space, they are up to 40 % lower than the standard models in the Sigma series. As an entry-level air cooled water chiller, it also uses our energy-efficient HYFRA microchannel technology, which uses up to 70 % less refrigerant. The frame is made of durable stainless steel.
The attached control cabinet is equipped with an ST120 controller that reliably monitors compression pressure and temperature. Equipment options – for example, reinforced pumps and variable frequencies or voltages – are available upon request.