Chapter 4: E2 Controller

4.5.3 Alarm Log

Figure 4-23. Alarm Log screen.

No password is required to view alarm display messages. If an alarm condition occurs, the first active alarm may be displayed by pressing the key. The alarm screen display text message will remain unchanged until the alarm condition is cleared.

If the alarm log is entered from the main menu, any other active alarm message(s) may be viewed by using the Up and Down arrow keys to scroll through alarm messages.

4.5.3.1 Alarms

The red LED backlight within the alarm key will illuminate any time an alarm condition is present or previous alarms existed without having been reset or cleared. An audible alarm will also activate when an alarm condition occurs. The audible alarm may be enabled or disabled in the Service>Options menu loop. The first active alarm screen may be displayed by pressing the Alarm key. The Alarm display provides you with a text message describing the abnormal operating condition. Use the Up and Down arrow keys to scroll for any additional alarm messages. Only active alarm screens will be displayed when the Alarm key is pressed. The alarm screen display will remain unchanged until the alarm condition is corrected and the alarm key is pressed again to clear the alarm.

When access is gained to the Alarm Log loop, use the Up and Down arrow keys to scroll through the log for a history of alarm messages. The alarms log may be cleared in the Service>Alarm log menu loop.

The application software supports two types of alarms: “Non-Critical” and “Critical.” Any alarm may be programmed to activate the “Custom” (user-configured) alarm relay contacts.

4.5.3.2 Non-Critical Alarms

A non-critical alarm will activate the alarm screen that it is associated with. These alarms are programmed to activate the “Summary Fault” alarm and close the “Summary Fault” relay contacts without stopping unit operation.

Some examples of the factory programmed, non-critical alarms are:

• High Temperature

• Moisture Detection

• Low Temperature

• Change Filter

• High Humidity

• Sensor Failure

• Low Humidity

• Communication Failure

4.5.3.3 Critical Alarms

Critical alarms will coincide with automatic shutdown of the A/C unit(s) equipment as needed to prevent possible system damage. The A/C unit(s) equipment will remain shut down until the alarm condition(s) are no longer sensed and the controller has been reset.

Some examples of critical alarms are:

 

• No Airflow (Air-Proving Switch)

• High Head Pressure

• Fire/Smoke Detection

• Low Suction Pressure

• Off by Internal Alarm (Only for grouped systems)

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Black Box CRDX-A-FS-24KW, CRDX-W-FS-12KW Alarm Log, Non-Critical Alarms, Off by Internal Alarm Only for grouped systems
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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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