Mini chiller
Compact air-cooled chiller, 5–60 kW, for cooling a single machine or a small process; pump and tank built in.
Industrial chiller
300–2000 kW chillers for plastics, food and chemical processes and data centres; screw compressors, ±0.5 °C water temperature accuracy.
Highlights
- 300–2,000 kW cooling capacity
- Semi-hermetic screw compressor, variable frequency drive (VFD) on request
- Air-cooled or tower-connected water-cooled condenser
- Leaving water held to ±0.5 °C in the process version
- −10 °C with glycol as standard, down to −30 °C with the low-temperature version
- Free-cooling coil for compressor-free cooling in winter
- N+1 redundancy with master/slave operation
- R134a, R513A and R1234ze refrigerant options, including low-GWP alternatives
- SCADA or BMS connection; data logging, alarm management
Applications
- Plastic injection moulding and extrusion
- Mould cooling
- Food and beverage production
- Pharmaceuticals and chemicals
- Automotive and metalworking
- Textiles and dyehouses
- Data centres and server rooms
An industrial chiller cools the production process, not the building: moulds, extruders, reactors, fermentation tanks or server rooms. Unlike comfort cooling, it runs every day of the year, 24 hours a day in most plants, and keeps the leaving water within a narrow band; in the process version this band is ±0.5 °C.
Compressor and condenser
Units above 300 kW use semi-hermetic screw compressors: they are efficient at part load as well, are long-lived and, with a variable frequency drive (VFD), follow the load steplessly. Large multi-scroll units can also be chosen in this class. A water-cooled condenser (connected to a cooling tower) or an air-cooled condenser is chosen according to the water supply and the space available at the plant.
Glycol and free cooling
In a glycol circuit, −10 °C leaving water is standard; a special low-temperature version goes down to −30 °C. When the outdoor air is cold enough, the free-cooling coil cools the water with outdoor air and the compressor stops. In processes that run continuously, this compressor-free period considerably reduces annual energy consumption.
Redundant operation
In plants where production must not stop, several units run in a master/slave arrangement to provide N+1 redundancy; when one of the units stops for maintenance or because of a fault, the others carry the load. A connection to SCADA or the building automation system provides data logging and alarm management.
The unit is selected for the process load and the required water temperature, and quoted. The table below gives the typical range for this class; the technical documents of the selected model are shared at the quotation stage.
Technical data
| Cooling capacity range (kW) | 300 – 2000 |
|---|---|
| Compressor | Semi-hermetic screw (VFD option) or large multi-scroll |
| Condenser | Air-cooled or water-cooled (tower-connected) |
| Evaporator | Shell & tube or plate |
| Refrigerant | R134a / R513A / R1234ze; R410A in scroll units |
| Leaving water temperature (°C) | +5 … +15 standard; −10 … −30 with glycol |
| Temperature accuracy | ±0.5 °C (process version) |
| Free cooling | Optional integrated coil |
| Redundancy | Master/slave, N+1 |
| Power supply | 380–400 V / 3 phase / 50 Hz |
| Control and communication | PLC / microprocessor, Modbus, BACnet, SCADA |
Request a quote for this product
Tell us the model and the project; we will help you choose the right capacity.
After installation, this product is serviced and maintained by our group company Aktek Elektromekanik. Service by Aktek Elektromekanik
Other products in this group
Chillers
Commercial chiller
Air-cooled chillers with multiple scroll compressors, 50–500 kW, for comfort cooling in hotels, shopping centres, hospitals and office towers.