IBM 8408-44E Site And Hardware Planning page 87

Figure 45. Typical performance of the heat exchanger, 30 kW heat load
Figure 46. Pressure drop (standard units)
Water specifications for the secondary cooling loop
Important: The water that is being supplied to the heat exchanger must meet the requirements that are
described in this section. Otherwise, system failures might occur over time as a result of any of the
following problems:
v Leaks due to corrosion and pitting of the metal components of the heat exchanger or of the
water-supply system.
v Buildup of scale deposits inside the heat exchanger, which can cause the following problems:
– A reduction in the ability of the heat exchanger to cool the air that is exhausted from the rack
Site and hardware planning
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