Recover more energy from every air stream

In the basic configuration, the energy contained in the exhaust air is absorbed by the heat transfer fluid in the exhaust heat exchanger and pumped to the heat exchanger in the supply air, where it heats or cools the outside air.

By interconnecting several energy recovery systems, different zones can be operated individually with a single hydraulic assembly. Such systems are extremely efficient, as energies within an interconnected system can be used according to demand.

External heat sources can be injected into the water/glycol loop and used to heat the outside air. This further increases system efficiency.

The ERS heat exchanger in the exhaust air is divided into sections. The first section is used as the ERS heat exchanger. The second section is used as an ERS heat exchanger in winter and as heat rejection for the chiller in summer.

Excess heat from other applications such as server rooms or water-cooled lab equipment can be injected into the water/glycol loop. This means that the chiller is not used at all or only to a very reduced extent, further increasing system efficiency.

The fins of a Konvekta heat exchanger can be directly sprinkled with water. Because of the combined heat and mass transfer, a high cooling capacity is achieved.

The ERS is able to cool the outside air while simultaneously dehumidifying and reheating it to a preset set point. During reheating, the outside air can be pre-cooled by a precooling heat exchanger. This reduces both total energy demand and the peak cooling demand of the chiller.

To prevent air filters from becoming damp and causing health problems, part of the ERS heat exchanger upstream of the filter can be used as a filter preheater. The filter preheaters can be easily cleaned with a high-pressure cleaner because the heat exchanger fins are thick, flat and durable.

If the temperature falls below the dew point at low temperatures, heat exchangers can ice up. Depending on the design, icing is either prevented by a frost protection control sequence or used strategically to recover additional heat. In the case of targeted icing, the Konvekta Controller ensures continuous operation through its unique defrosting process.

By integrating a heat pump/chiller, the high-efficiency ERS can operate without fossil fuels while increasing overall energy efficiency at the same time.