Knürr CoolServe® – 4,5 to 6 kW Cooling Capacity				back
	19" Technology For Effectively Channeling Heat Loads Out Of Closed Server Racks Knürr CoolServe®, is a heat exchanger (air-to-water) with 19" technology for effectively channeling heat loads out of closed server racks. The airflow is adapted to the server cooling, so that the warm server outlet air is taken in at the rear of the CoolServe®. A high performance heat exchanger takes the heat out of the air and transfers it to the cold water system. The cooled air is then guided to the front of the CoolServe® in front of the 19” level of the server rack.   The system is equipped with redundant ventilators, feed (A and B feed) and mains components for internal power supply, similar to the installed servers. The internal rack temperature is regulated via a cooling water regulating valve, i.e. in order to save energy, only the amount of cooling water that is actually required to extract the rack heat is routed by the high-performance heat exchanger. The server intake air temperature is the regulating parameter here. • Optimum adjustment as required to the   components to be installed with the   vertical or horizontal installation position   of the slot-in unit.   • The electronic module can be taken   out at the front, and therefore en-   ables easy access to the internal   components.                     Technical Data:                   Effective Cooling Output Width Height Depth Prerun and Postrun Connection Electrical Connection 4,5 kW * 6 kW ** 19” (448 mm) 3 U (132 mm) 740 mm 1/2“ male thread 207 to 243 VAC 50/60 Hz 235 Watt * Server outlet air temperature 37°C / ** Server outlet air temperature 47°C               Cooling water spread: 12 / 18°C   Max. operating pressure: 10 bar Exhaust temperature after heat exchanger: 20-25°C in acc. with ASHRAE Absolute humidity: 8 g / kg Temperature increase over the whole server: ca. 15-25 K Color: Front grid and side bracket RAL 7021;otherwise aluminum finish Coolingwater volume flow: max 1m³/h on frost protection Ambient temperature: 12 – 35°C Pressure loss: 39KPa     subject to change without notice
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