Chapter 2: Installation

When determining the installation location, consider how you’ll route the piping and wiring into the cabinet and ensure access is available (see Sections 2.7.1 and 2.8.1). The Cold Row system is ordered from the factory with pilot holes for piping and wiring in either the top or the bottom of the cabinet. See the installation drawing provided with your unit for the pilot hole locations.

Conditioned Space

Take certain steps to minimize the effects of the environment surrounding the conditioned space. This is especially important for critical/precision room preparation (computer data centers) that require close tolerance control of temperature and humidity. The conditioned space should be well insulated and include a vapor barrier. The installer should ensure that the proper insulation rating is used based on the design of the space, which was the basis for the system selected. The following table lists recommended minimum R-value (thermal resistance values) for optimum equipment operation.

Table 2-1. Recommended

minimum thermal resistance.

Structure R-Value

Ceiling R-38

Wall R-21

Floor R-19

Door R-5

The vapor barrier is the single most important requirement for maintaining environmental control in the conditioned space. The vapor barrier in the ceiling and walls can be a polyethylene film. Concrete walls and floors should be painted with a rubber- or plastic-based paint. Doors and windows should be properly sealed, and a door sweep used to minimize leakage. Outside or fresh air should be kept to a minimum (as it adds to the cooling load), while maintaining the requirement of the Indoor Air Quality (IAQ) standard. Lack of these steps can cause erratic operation, unstable room control, and excessive maintenance costs.

2.4 Mounting/Placement

The Cold Row precision A/C system uses a frame and panel construction for unit rigidity and full-service access while the unit is mounted in place.

NOTE: The equipment must be level to operate properly.

Cold Row cabinets are designed to be installed in a row of servers between the server racks (see Figures 2-1–2-3). They have a compact footprint that allows the units to be placed adjacent to the heat-producing equipment racks anywhere in the row. They provide cool, conditioned air through the front grille to the adjacent server modules on the cold aisle side of the row. We recommend positioning the unit to obtain optimum air circulation. Allow 36" clearance in the front and rear of the cabinet for servicing the unit.

The optimal placement location is next to highly loaded servers that throw off the most significant heat into the hot aisle side of the row. In this arrangement, the Cold Row minimizes hot spots. It is best not to place a Cold Row unit at the end of a row unless an air barrier is in place to prevent the conditioned air from being drawn around to the hot aisle side, bypassing the front of the servers. An air barrier must also be present to prevent conditioned air from being drawn over the top of the row into the hot aisle.

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Black Box Black Box Cold Row DX, CRDX-W-FS-12KW, CRDX-A-FS-24KW, CRDX-G-FS-24KW Conditioned Space, Mounting/Placement
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CRDX-W-FS-12KW, Black Box Cold Row DX, CRDX-W-FS-24KW, CRDX-A-FS-24KW, CRDX-A-FS-12KW specifications

The Black Box CRDX series consists of high-performance cooling solutions designed to maintain optimal temperature conditions in data centers and server rooms. Key models in this series include the CRDX-W-FS-12KW, CRDX-W-FS-24KW, CRDX-G-FS-12KW, and CRDX-A-FS-24KW. These units are engineered to provide efficient cooling while addressing the rising demands of modern IT infrastructure.

One of the standout features of the CRDX series is its cold row design. This configuration enables targeted cooling delivery directly to the equipment, enhancing efficiency and reducing energy consumption. The airflow management in these models ensures that cooled air is directed where it is needed most, minimizing hotspots and maximizing cooling performance.

Both the CRDX-W-FS-12KW and CRDX-W-FS-24KW models utilize advanced refrigerant-based cooling technology. These units are equipped with electronically commutated (EC) fans, which are highly efficient and quieter than traditional fan technologies. This innovation not only lowers operational costs but also creates a more comfortable environment within the data center.

The CRDX-G-FS-12KW model stands out for its hybrid capabilities, offering both chilled water and direct expansion cooling options. This versatility allows facility managers to choose the best cooling approach based on their specific requirements and current infrastructure. The hybrid system can optimize energy consumption and enhance cooling efficiency, contributing to lower operating costs.

Another noteworthy feature across these models is their intelligent controls and monitoring capabilities. Equipped with sophisticated sensors and control systems, operators can gain real-time insights into temperature fluctuations, humidity levels, and unit performance. This data aids in proactive maintenance and ensures that cooling systems are operating at peak efficiency.

The CRDX-A-FS-24KW, on the other hand, is designed with a focus on adaptability and scalability. This model can be integrated easily into existing network setups, making it an excellent choice for facilities that anticipate future growth or need to adapt to changing cooling demands.

Overall, the Black Box CRDX series exemplifies the latest advancements in cooling technology, offering innovative features designed to support high-density computing environments. With their efficient cooling capabilities, intelligent controls, and flexible design options, these models provide reliable solutions for data centers looking to enhance their cooling systems while reducing operating costs.
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