HP Modular Cooling System Generation 2 site preparation guide - Technical white paper

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When redundant AC power is available, the redundant AC power cord is connected to the right C20
receptacle, as shown in figure 15.
Figure 15: Redundant-source AC power connection
Coolant source planning
A number of factors relating to a chilled water distribution system must be considered during the site
preparation process, including the following:
 Redundant water configurations
 Type of water source: shared water or dedicated chilled water loop
 Maximum and minimum temperatures of building-chilled water plant, and target chilled water
temperature of dedicated loop based on the total cooling capacity required and planned
 How viscosity of the chilled liquid, combined with the length and elevation changes in piping
determined by selected route, can affect the selection of pipe size
Caution:
The minerals and chemicals typically found in tap water can react with metallic
elements used in the HP MCS G2 closed-loop distribution system. Electrochemical
reactions can cause scaling, corrosion, leaks, and blockage, ultimately resulting in
reduced efficiency of the cooling system and even damage.
Note:
The use of building-chilled water for the HP MCS G2 unit is possible under certain
conditions. However, consult with a qualified facilities design expert to determine
whether this approach is possible within your specific data center. Refer to the
requirements for water quality, temperature, and flow rate described in this section.
Regardless of the chilled water service approach, consult with a qualified facilities
design expert to analyze new and existing systems and specify new work to ensure
water quality, temperature, and water flow requirements can be met. The new work
must meet all local safety and building code requirements as well as the customer’s
facility quality standards. Piping drawings and schematics included here are
diagrammatic to convey a conceptual understanding of the HP MCS G2
connection requirements.