Chiller
Generate cooling energy-efficiently
With the Blue e+ series, Rittal is launching a generation of chillers onto the market that, according to the manufacturer, enables a major leap in energy efficiency.
The measure of energy efficiency in cooling generation is the so-called Energy Efficiency Ratio (EER), which is calculated from the ratio of cooling capacity to the electrical power used. Conventional chillers with hot gas bypass control have an EER of 1; with the 'Blue e+' chillers, an EER of 3 is possible. The basis for this is a speed-controlled compressor. Instead of operating the refrigeration compressor at full load and wasting a large proportion of the refrigeration capacity, as is the case with hot gas bypass control, the inverter-controlled DC refrigeration compressor can provide exactly as much refrigeration capacity as is currently required. This means that the hysteresis can be kept extremely small. The chillers are available in three performance classes with cooling capacities of 2.5 kW, 4 and 6 kW (adjustable between 20 and 100 %). They can be used at ambient temperatures from -5 to +50 °C. A control panel with touch display shows all messages in plain text. Approvals such as cULus Listed, EAC, CCC and GS facilitate international use.
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