Mechanical · M-47EB8

Direct Evaporative Cooler Water System Diagram

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The schematic details the water supply, makeup control, and drainage connections for a direct evaporative cooler serving a data hall air handling unit. Incoming make-up water passes through a pressure-reducing valve, a make-up control valve, and a flush valve before feeding the direct evaporative cooler and sump. A pump sump includes water level switches for high, off, and low states, alongside a float fill valve and a conductivity sensor to monitor water quality. Overflow lines and manual drain valves route excess water to designated drains, while motorized valves control the flushing and drainage operations.

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