Another consideration for water is the required set point. Temperatures near or below 0°C (32°F) indicate that the chilled water plant condenser is very close to or below the freezing point of the water. (The minimum chilled water temperature to be supplied to the MCS 5042 is 7°C or 45°F.) This temperature might cause a blockage and damage to the unit, so an additive like glycol might be necessary to lower the freezing point. However the heat transfer potential of the water is lower, therefore, you must consider proper equipment capacity derating.

In a cooling loop, metallic materials in a pipe distribution network are in constant contact with re- circulating liquid and can react with impurities to cause corrosion that can develop into leaks or form deposits that can develop into blockages.

The rate of galvanic corrosion depends on the electrical potential between the two dissimilar metals and the temperature of the liquid.

Note:

A 10°C (50°F) rise in water temperature can double the rate of corrosion.

Additional water precautions

The following actions must be taken during the installation of the MCS 5042:

•Ensure that all foreign matter and particulates are flushed from the system prior to installing the water kit for the MCS 5042.

•Evaluate the short- and long-term system requirements, versus available water capacity.

•Ensure your chilled water loop is properly designed for liquid cooling systems, separate from the sanitary water systems within your building (such as, bathroom, sink, or drinking water).

•Make sure facility managers are aware of the additional load being added to the building chilled water supply. Be aware that the heat load being added might have an effect on other components being cooled by the chilled water plant.

Caution:

The water supply system feeding the MCS 5042 must be capable of withstanding deadheading (operating with a closed line) and operation with rapid and frequent changes in flow requirements, including long periods of time with zero water flow.

Plumbing materials to avoid

The following materials must not be used with a closed water system:

•Oxidizing biocides

•Aluminum components

•High zinc/brass components

•Non-stainless steel iron components

52

Page 51 Page 53
Page 52
Image 52
HP Modular Cooling System manual
Page 51 Page 53

Modular Cooling System specifications

The HP Modular Cooling System (MCS) is a state-of-the-art solution designed to efficiently manage the heat generated by high-density IT environments. As data centers face the ever-increasing demand for processing power, traditional cooling methods often fall short, leading to inefficiencies and raised energy costs. The HP MCS addresses this issue with a scalable, flexible design that optimizes cooling performance while minimizing energy consumption.

One of the main features of the HP Modular Cooling System is its modular architecture, which allows for easy expansion and customization based on the specific needs of a data center. This scalability means that as a facility grows or changes, the cooling system can be modified without the need for extensive renovations or replacements. The MCS can be installed in various configurations, further enhancing its versatility.

The technology behind the HP MCS includes advanced cooling methods such as direct evaporative cooling and chilled water cooling. Direct evaporative cooling utilizes the principles of evaporative heat exchange to cool air without excessive energy consumption, making it an eco-friendly choice. In contrast, chilled water cooling uses a network of pipes filled with chilled water to remove heat from the server environment efficiently. This combination allows the MCS to adapt to various heat loads and ambient conditions.

Another notable characteristic of the HP Modular Cooling System is its intelligent controls and sensors. These components continually monitor temperature and humidity levels within the data center, automatically adjusting cooling output to maintain optimal conditions. This proactive approach helps to prevent overheating, reduces energy usage, and ensures the longevity of IT equipment.

Energy efficiency is further enhanced through the MCS's integration with HP's monitoring and management software. This software analyzes cooling performance trends, providing actionable insights for facility managers, enabling them to make informed decisions regarding cooling strategies. Additionally, the system is designed with environmentally sustainable practices in mind, aligning with global initiatives to reduce carbon footprints and promote green technology.

The HP Modular Cooling System stands out for its combination of innovative technologies, flexibility, and a commitment to energy efficiency. As data centers continue to evolve, the MCS remains a crucial asset in the pursuit of optimized performance and sustainability, providing a reliable solution to meet the demanding cooling needs of modern IT infrastructure.
Top Page Image Contents