Chapter 2: Installation

Piping Connections

CAUTION

The cooling coil (and associated piping circuits) are pressurized (up to 100 psi) and sealed when they leave the factory. Before installing the interconnecting piping, release the pressure via an available stem valve or Schrader valve prior to uncapping the pipes.

Fluid supply and return lines are routed to either the top or bottom of the cabinet as specified when the Cold Row system is ordered (see Figures 2-8 and 2-9). On units that are piped from the top, the supply and return connections are made outside the cabinet. On units that are piped from the bottom, the supply and return connections are made inside the cabinet.

Pipe connections are threaded NPT connections. The pipes are labeled; i.e. “Supply,” “Return.” When making the connections, a Teflon® tape thread sealant is recommended to minimize internal fouling of the piping.

Field piping is not necessarily the same size as the unit’s pipe connections. Piping should be sized to match the system pressure drop and flow capacity, and may require reducing fittings to match the connection size on the air conditioner. An air vent and several Schrader valves are installed in the precision A/C unit piping. We recommend providing manual shut-off valves for both the supply and return fluid for isolating the unit when performing routine maintenance or repairs. Refer to the piping diagram supplied with your unit.

NOTE: Install a 60-mesh strainer in the supply pipe. Make sure the strainer is readily accessible for servicing or replacement.

For pipe connection sizes, refer to the following table:

Table 2-3. Pipe connection sizes.

Model #

Water Glycol Inlet/Outlet

Condensate Drain

 

 

 

CRDX-G-FS-12W,

11⁄4"

1⁄2"

CRDX-G-FS-24W

 

 

 

 

 

CRDX-W-FS-12W,

11⁄4"

1⁄2"

CRDX-W-FS-24W

 

 

 

 

 

NOTE: Use standard refrigeration practices for piping, leak testing, and filling the water glycol circuit.

Use vibration isolating supports to isolate the piping. Provide supports (clamps or hangers) as necessary, every 5 to 10 feet along piping runs to minimize vibration and noise transmission. To reduce vibration transmission and prevent pipe damage, seal openings in walls using a soft, flexible material to pack around the piping. After the piping is installed, seal the gaps between the pipes and the entrance holes so air won’t leak around the pipes.

NOTE: Water/glycol lines should be insulated to prevent condensation from forming on the pipes if ambient dew point temperatures are higher than the fluid temperatures.

CAUTION

After the interconnecting piping is installed, the entire piping circuit must be thoroughly flushed prior to operating the system.

If newly installed supply and return piping is used, we recommend cleaning the piping system before connecting it to the unit. If you use solvents/cleaning solutions, ensure they are completely flushed from the piping before connecting it to the unit. Failure to do so could result in equipment problems.

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Black Box CRDX-A-FS-12KW, CRDX-W-FS-12KW, CRDX-A-FS-24KW, CRDX-G-FS-24KW, CRDX-W-FS-24KW, CRDX-G-FS-12KW Piping Connections
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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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