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Transcritical R744 (CO2) Heat Pumps 2017

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Transcritical R744 (CO2) Heat Pumps 2017 ( transcritical-r744-co2-heat-pumps-2017 )

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Rapport 2414173 - October 2007 __________________________________________________________________ temperature from the gas cooler, evaporating temperature or air outdoors temperature) provide the best control system. These controls are implemented in the Ecocute unit and the Stiebel Eltron heat pump. If transcritical operation at fixed pressure is possible, Danfoss proposes two pressure regulators: • A manual pressure regulator – the pressure can be set manually on the valve (MBR); • An automatic back pressure regulator, which uses the gas cooler outlet temperature to control high pressure (BPR) Figure 42 : Danfoss MBR regulator for transcritical R744 systems These two valves are shown in Figures 442 and 43. __________________________________________________________________________________________ SHERPHA PROJECT - Transcritical R744 Heat Pumps – Technician's Manual 35/63

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Transcritical R744 (CO2) Heat Pumps 2017

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