Air-Cooled Chillers
Our air-cooled chillers set the highest technological standards. Different efficiency levels, noise levels, compressor technologies and refrigerants are available to suit the needs of the individual project.
- Available as Inverter-scroll, multi-scroll, screw and full inverter screw compressor types
- Available with low-GWP or standard refrigerants: R-454B, R-1234ze, R-513A, R-410A and R-134a
- Comfort or process application
- SEER levels up to 5.3 (eta,s = 208 %), SEPR HT up to 6.00
- High planning reliability, as ErP 2021 compliant in all versions
Fast facts
- Capacity range 4 kW to 1.8 MW
- High quality components, e.g. compressors from Bitzer or Danfoss
- AC or EC fans available depending on required efficiency level
- EEVs are available for precise super heating control
- Plate heat exchangers, shell and tube or flooded evaporators
- Cu/Al or Micro Channel condensers, protective coatings available as options
- Built-in pumps available, optionally speed controlled on delta T
- Built-in buffer tanks available for scroll compressor units
- Connection to the building management system via Modbus, LonWorks and BACnet as an option
- Group controller available
- Full package of installation accessories (water strainer, flow swtich, anti-vibration mounts)
- Unit versions with full or partial heat recovery available
- Chilled water temperature -10 °C to +18 °C depending on unit type and outside temperature
- Unit operation from -20 to +50 °C depending on selection
Product gallery
Product information
Product description
High-quality components are used. All units perform a 100 % test run in the factory. The units are ideal for the comfort cooling of commercial buildings like offices, shops or malls, hotels, universities, laboratories or theatres. Combined with our fan-coil units, chilled beams and/or air handling units, effective and efficient air conditioning systems with low refrigerant charges can be set up.
Product features
Variable pump speed (VPS)
Highly efficient speed controlled inverter pumps are available. By adapting the flow rate according to the actual cooling load, the water-side delta T can be kept constant in a wide range. The power demand of the pump is proportional to the third potential of the change in the pump speed. This means a reduction of 50% in rotational speed results in a reduction of the power consumption to 12.5%! The overall consumption can be reduced by 45 % leading to pack-back times of about 1 year compared to constant speed pumps.Silent operation
By using special insulation material for the compressor chamber and lower fans speeds, the unit is available in a super-low noise design. Even in standard execution the units achieve unbeatable low noise levels.Refrigerant R-513A
Our full inverter screw and standard screw compressor units are available with the alternative refrigerant OpteonTM XP10 (R-513A, GWP 631). This reduces the global warming potential (GWP) by 56 % compared to traditional refrigerants. R-513A is a particularly economical refrigerant, as the power yield is approx. identical to that of traditional refrigerants and safety class A1 is also achieved (non-flammable / non-combustible).Refrigerant R-454B
Our scroll compressor units are available with the alternative refrigerant OpteonTM XL41 (R-454B, GWP 466). This reduces the global warming potential (GWP) by 78% compared to the conventional refrigerant R-410A. Due to the future further tightening of the CO2 equivalent quotas by the F-Gas regulation, chillers with the refrigerant R-454B are particularly future-proof.
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