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

HP recommends that the water source for the HP MCS G2 be a dedicated chiller unit or

water-to-water heat exchanger that allows for line isolation, better control of individual systems,

and regulated water quality. The chilled water source for this loop would be provided by one or

more chiller systems. Advantages in using a dedicated loop include:

 Easier scheduling of maintenance to either a building system or dedicated HP MCS G2 loop

 Easier-to-maintain water quality parameters in the dedicated closed loop

 Better temperature and flow regulation to guarantee the needs of the HP MCS G2

 More flexibility to regulate water temperature in order to reduce the potential for condensation

Figure 16 depicts the HP MCS G2 being supplied directly by a dedicated chiller unit or

water-to-water heat exchanger in a closed loop configuration.

Figure 16: Dedicated chiller unit directly supplying the HP MCS G2

Plumbing considerations

A number of plumbing factors should be considered when installing the HP MCS G2:

 Flow rate and pressure capacity of chilled water plant input to the design of the facility feed line

and dedicated water loop pipe diameters

 Corrosion-resistant material within the piping system to reduce the potential for electrochemical

corrosion

 Reduction of elbows and other restrictions that increase flow resistance

 Insulation of piping to reduce risk of condensation and incidental heating of supplied chilled water

 Availability of a floor drain or reclamation system to capture system condensation

 Structural securing of piping to support weight of distribution network filled with water

 Water quality management, including particulate filtration, treatment, and flushing provisions, with

isolation valves for service requirements