Water chillers KRA
2Pages

08 KRA Water chillers www.eurodifroid.fr KRA water chillers, in conformity to CE standards, can be used to cool process and machines. Hydraulical and electrical connections, as well as maintenance have been simplified to the maximum, for easier installation and use. These chillers are standard equiped with insulated tank with cover and circulating pump. In order to follow user’s need, many alternatives and options are available. The range of application’s temperature goes from +5°C to +20°C (standard), with possibility to extend from - 30°C to + 40°C, according to request. Ambient conditions lie between +10°C and +40°C. For specific applications, limits can be extended (for example - 20°C to +55°C). Hermetic compressor Regulation via electronic thermostat Air condensing unit Refrigerant R407C (KRA 90 to 500) Refrigerant R134a (KRA 10 to 70) Immerged copper evaporator (KRA 19 to 70) Differential pressure switch to protect plate heat exchanger (KRA 90 to 500) Peripheric circulation pump (KRA 10 to 70) Centrifugical circulation pump (KRA 90 to 500) Viton gasket Insulated stainless steel tank Drain valve Water level seight Water manometer Textured RAL 7035 paint Factory tested, ready for use • KRA...D Direct expansion (without tank and without pump) • KRA...DP Direct expansion and pump (without tank) High pressure pumps Flow controller Low temperatures (-30°C) Draw a vertical line from the requested water outlet temperature to the maximum ambient temperature of the room where the chiller is located. This will give you an intersection point A. Draw an horizontal line from the point A to the cooling capacity curve. This will give you an intersection point B. From this point B, draw another vertical line to meet the cooling capacity correction factor. Then, the cooling capacity of a KRA 70 at 20°C water outlet temperature, 32°C ambient temperature will be : 7 x 1,14 = 7,41 kW (7 = cooling capacity indicated on the opposite table) OPTIONS AND ALTERNATIVES CORRECTION FACTOR STANDARD COMPONENTS 1-35 kW DESCRIPTION