MRA" aisle cooling module or "MRB" rack - Image 2

MRA" aisle cooling module or "MRB" rack

A module the size of a 300 mm wide rack (single-coil version) or 600 mm wide rack (double-coil version), equipped with a heat exchanger (chilled water or direct expansion) that draws hot air from a confined area and discharges cooled air into the cold zone.
The heated air exiting the servers is blown into the confined hot zone. The modules measure the pressure differential between the hot zone and the cold zone.

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Dimensional characteristics

Width: 300 mm (1 battery) or 600 mm (2 batteries)
Depths: 1000 mm and 1200 mm
Height: 42U and 47U
Color: Black RAL 9005

Benefits

Airflow control is achieved by measuring the pressure differential between the hot and cold zones and adjusting the heat exchanger’s airflow to match the actual airflow of the
servers => (delta.P = 0).
• No interference with the servers’ own control systems.
This principle also ensures automatic redundancy among the different modules within the same enclosure.
• If a module shuts down, the pressure in the enclosure increases and the flow rate of the other modules automatically increases.

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