What is the LITE-ON CL-LL-WCDU-6011?
LITE-ON publishes this coolant distribution unit with the full duty point attached, which is rarer than it should be. The rating is 600 kW at 600 liters per minute with a 4 degree Celsius approach temperature difference. Nominal flow is quoted as 600 liters per minute against 2.45 bar of external differential pressure, so the pump curve and the piping loss are both accounted for. The primary loop accepts water from 7 to 35 degrees Celsius; the secondary loop runs between 15 and 45 degrees and holds 61 liters. Coolant is treated water or 25 percent propylene glycol. The cabinet measures 2,038 by 900 by 1,200 mm and weighs 660 kg. Pumps are dual redundant and serviceable online, as are the integrated 25 micron filters. Power draw is 6 kW, from either a 190 to 220 volt or a 380 to 480 volt three-phase supply, and models with an automatic transfer switch are available. Noise is stated below 58 decibels at three meters. Dew point control is included, which matters when the secondary loop can run below room dew point. Pipe connections are ISO 7241-B stainless steel flanges. LITE-ON does not state the primary flow rate or the capacity with one pump out of service. Ask for both, and for the selection at the site's own primary water temperature.