PROJECT
Daikin has supplied HFO screw inverter chiller technology to a major pharmaceutical company, for one of the manufacturing sites in Wien, Austria. The Daikin screw inverter chillers replaced old high GWP chiller units.
PRODUCTS
2x EWAH-TZ Total cooling capacity: 580 kW.
THE CHALLENGE
The project required the replacement of a 15 years old big split chiller R410A with remote air-cooled condensers. The refrigerant quantity in the old chiller was very high and the reciprocating compressor only had 4 capacity steps. The end user decided to replace it with more advanced technology, seeking greater energy efficiency and environmentally friendliness. The new chillers had to produce chilled water/glycol mixture at -8°C, which to provide cooling for microbiological processes. During the investigation for replacement the end user made several measurements in “real life” operations and found out that the cooling requirement could vary from approximately from 70 kW to 570 kW. Another important aspect was the noise reduction. The project required a maximum sound power of 81 dBA.