Server facilities are the nerve centres for most modern businesses. Racked equipment generates a large amount of heat and in order to prevent equipment failures, the heat must be extracted. Heat extraction is the role of the HVAC equipment and chilled water pumped into and out of the facility is the primary heat extraction medium. However water and electronics do not mix.
Water accumulating on the floor or water dripping from overhead piping can and does interrupt server operations. Early detection of any water leakage can get maintenance on scene in time to deal with the threat. Raised floor facilities are even more vulnerable because leakage is concealed.
A water leak in a visible area might be noticed by employees but if the leak occurs beneath raised floors, the first alarm may occur when a critical system shuts down or water begins to rise through the structural floor or drip to lower levels in the building.