Chapter 4: E2 Controller

Table 4-15. Factory>Group>Capacity Assist (Screen 4) parameters.

Display

 

 

 

Description

Description

Variables

Default

 

 

 

 

Humid Cut in

Enter relative humidity setpoint offset for humidifying capacity assist operation to begin.

-99.9 to 99.9

-4.0

 

 

 

 

Cut out

Enter relative humidity setpoint offset for humidifying capacity assist operation to stop.

-99.9 to 99.9

0.0

 

 

 

 

Dehum Cut in

Enter relative humidity setpoint offset for dehumidifying capacity assist operation to begin.

-99.9 to 99.9

4.0

 

 

 

 

Cut out

Enter relative humidity setpoint offset for dehumidifying capacity assist operation to stop.

-99.9 to 99.9

0.0

 

 

 

 

Figure 4-80. Factory>Group>Group Averaging (Screen 5).

Table 4-16. Factory>Group>Group Averaging (Screen 5) parameters.

Display

 

 

 

Description

Description

Variables

Default

 

 

 

 

Temp/Hum Sensors

 

0 = No

Yes

Enter Yes for the unit to respond to its local sensors to enable Standby or Capacity Assist

1= Yes

 

 

 

operation. Enter No for unit to respond to the Group sensors.

 

 

Static Pr Sensor

0 = No

Yes

 

 

1= Yes

 

 

 

 

 

 

 

Figure 4-81. Factory>Group>Group Alarm Setup (Screen 6).

This screen may be accessed on the controller for each unit to be grouped. You may enter bitmask numbers to establish which alarm conditions for that particular unit will initiate a group internal alarm. The group alarms may be set before the A/C units are wired together. When a group alarm condition is detected by a unit, it causes that unit to temporarily switch over from “Active” to “Off” and if another unit is available in the group, it may rotate into its place. A status massage “Off by internal alarm” will appear in the Main screen of the unit that detected the group alarm and switched off.

See Section 4.5.5.5 for an overview of how to select alarms using bitmask values. The Group Alarms bitmask values are shown in the Tables 4-17–4-21. The settings may be viewed at the Info level following the network sensors screen. If an alarm condition appearing in the following tables is detected, it needs to be reset at the unit's display terminal or via the BMS for the unit to return to “Active” and resume operation.

724-746-5500 blackbox.com

Page 93

Page 93
Image 93
Black Box CRDX-G-FS-24KW, CRDX-W-FS-12KW, CRDX-A-FS-24KW FactoryGroupCapacity Assist Screen 4 parameters, to Cut out

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.