FRANCE: Carrier has introduced heat recovery and free cooling options to its AquaSnap 30RBP air-cooled scroll chiller range on R32. 

Introduced with the R32 option in 2020, AquaSnap units achieve an SEER for cooling of up to 6.62. The latest heat recovery and free cooling options provide even greater energy savings, says Carrier.

The heat recovery system enables chillers to produce domestic hot water up to 80ºC, while continuing to provide cooling, making it useful for applications such as hotels, hospitals and industrial processes requiring hot water. 

Two versions of free cooling are available – partial and total. Partial free cooling is designed for applications with a variable primary cooling load, such as offices and healthcare, which may also have a constant residual cooling need. Examples include computer suites or scanner facilities. The total free cooling option is designed for applications with a constant cooling need throughout the year, such as industrial processes and data centres.

Carrier’s hydronic-based free-cooling system automatically activates when the outdoor air temperature drops 1ºC below the chiller’s return water temperature. For example, in Berlin, the hydronic free cooling potential is 50 to 95% of annual chiller run-time, depending on the application. In more northern locations, the potential free cooling opportunity is even greater.

If free cooling is not sufficient to meet requirements, a mixed mode – using both free cooling and mechanical cooling – is automatically activated, ensuring the cooling needs of mission critical applications are always met.