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Rapport 2414173 - October 2007 __________________________________________________________________ These chillers can be operated either under sub-critical or transcritical conditions. Figures 12 to 15 show pictures of an "Atlantic" chiller. Figures 12 and 13 show the control panel, the compressor rack (3 black units) and the R744 high pressure tanks (in green). Figure 16 : Atlantic chiller back view Figure 17 : Side view 2 Annex 2 shows the Green and Cool "Atlantic" product range with a performance table. The Atlantic product range is normally equipped with air-cooled gas cooler (not shown in Figures 12 to 15), and can handle duties up to 200 kW, depending on the evaporating temperature. Green and Cool sources finned coils (gas coolers) from other manufacturers. The Green and Cool Atlantic is a liquid chiller unit that is available as an air conditioning unit (HT), a chiller unit (MT) and a freezer unit (LT) with a partially indirect system. On the cold side the HT uses water for air conditioning, the MT uses 37% Propylene glycol solution for chilling applications and and the LT uses R744 as the heat transfer medium for freeze units. 3.3.Vending machines and bottle coolers Transcritical R744 cycles are also used for small commercial refrigeration systems. The Coca Cola Company (TCCC) has pledged to reduce to the lowest possible its uses of synthetic refrigerants. As of year 2007, they operate 6000 transcritical vending machines with duties ranging from 300 W to a few kW. __________________________________________________________________________________________ SHERPHA PROJECT - Transcritical R744 Heat Pumps – Technician's Manual 23/63PDF Image | Transcritical R744 (CO2) Heat Pumps 2017
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