What is the Munters SyCool Split 250 kW?
SyCool Split rejects data hall heat to outside air using a thermosyphon rather than a pumped loop. Refrigerant evaporates in the indoor unit, rises to the outdoor condenser, gives up its heat and drains back by gravity. Nothing pumps it. Munters presents that as fewer moving parts and fewer failure points, and it also means no water is consumed, which is the main reason a water-scarce site would consider it. Nominal capacity is 250 kW, and the range is built in blocks of 125, 250, 400 and 500 kW. Refrigerant piping allows up to 500 feet between the indoor and outdoor units, so the condenser can sit where there is space rather than directly above the hall. The published performance table is rated at 1,000 feet elevation, 0.2 inches of water column external static pressure and 75 degrees Fahrenheit supply air, and capacity varies with ambient temperature across that table. The condenser weighs about 7,000 pounds and the indoor unit about 4,400 pounds excluding its floor stand. When outside air is warm enough that the passive cycle cannot carry the load, compressors stage on and the unit adds mechanical cooling. Munters does not publish the ambient temperature at which that transition happens for a given supply-air target. Ask for the annual hours of compressor operation modelled for the site's own weather file, because the efficiency case rests on that number.