Displayed Alarm Message

Action Required

 

 

MultiCool Coil No Coolant

• Verify the flow from the chilled water supply.

Flow

• Check the operation of the flow switch.

 

• Check the electrical connections to the flow switch.

 

• Verify that the chilled water supply isolation valve is open.

 

 

No Backup Systems Available

• Check the number of Systems designated for the backup role.

 

• Check that the primary or backup Systems are not in a failed state, in the

 

Comm Lost state, or Off.

 

 

Primary Sensors Failed

• Verify that there is a proper CAN connection between the sensors and the

 

user interface box.

 

• Check the connections of the 25-pin serial communication cable from the

 

main controller board to the customer interface box.

 

• Replace the sensor assembly.

 

 

Remote Sensor Removed

• Check the CAN bus connection to the remote sensor.

 

• Disregard this alarm if you removed the remote sensor.

 

 

Remote Sensor Added

• Check the CAN bus connection to the remote sensor.

 

• Disregard this alarm if you added the remote sensor.

 

 

Replace Steam Cylinder

• Replace the steam cylinder.

 

 

Return Sensor Fail

• Verify that there is a proper CAN connection between the sensors and the

 

user interface box.

 

• Replace the sensor assembly.

 

 

Secondary Sensors Failed

• Verify that there is a proper CAN connection between the remote sensors and

 

the user interface box.

 

• Check the remote sensor dip switch settings for proper address configuration.

 

• Check the connections of the 25 pin serial communication cable from the

 

main controller board to the customer interface box.

 

• Replace the sensor assembly.

 

 

Smoke Detected

• Confirm that the wiring connections to the wiring harness are secure.

 

• Ensure the smoke head and sub-base are properly attached.

 

• Ensure that there is not dirt or dust on the smoke head. Use pressurized air to

 

clean the smoke head chamber.

 

• Replace the smoke detector.

 

 

Suction Pressure Low

• Confirm (at the display interface) that the pressure drop across the evaporator

 

coil is within the acceptable range (Path: Main Menu > Status > [Main or

 

Expansion] Module > Pressures).

 

• Confirm that the cooling setpoint is not below 20°C (68°F).

 

• Verify the condition of the return filters. Check (at the display interface) the

 

pressure drop across the filters (Path: Main Menu > Setup > System >

 

System Config > System Options).

 

• Confirm that the outdoor heat exchanger is operating properly and that its

 

setpoints are correct.

 

• Confirm proper refrigerant charge in the Module.

 

• Confirm proper Module setup and that the correct Module size is indicated

 

on the display interface.

 

• Verify that the evaporator coil is clean and free of debris.

 

 

58

NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting

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Image 68
American Power Conversion DX, FM manual Comm Lost state, or Off
Page 67 Page 69

DX, FM specifications

The American Power Conversion (APC) DX,FM series represents a cutting-edge solution designed for critical power management and uninterruptible power supply (UPS) applications. Aimed at businesses and data centers that require robust power protection, this series balances high-performance capabilities with advanced technology features.

One of the key distinguishing features of the DX,FM series is its modular design. This allows users to scale their UPS system according to their needs, making it suitable for a variety of environments. Whether you're managing a small server room or a large data center, the modular architecture ensures that you can add or remove capacity with ease. This flexibility not only optimizes initial investments but also supports future growth seamlessly.

The series employs advanced battery technology, which extends battery life and enhances overall performance. With intelligent battery management systems, the DX,FM ensures that battery health is monitored in real-time, preventing premature failures and unnecessary replacements. This leads to reduced maintenance costs and maximizes uptime.

Additionally, the DX,FM series features innovative cooling solutions that enhance performance in high-density situations. Efficient thermal management reduces the risk of overheating, keeping valuable equipment operating optimally. This is particularly crucial in data centers where heat generated by servers can create potential disruptions.

Another significant characteristic of the DX,FM series is its sophisticated monitoring and management capabilities. Integrated with state-of-the-art software, users can gain remote access to their UPS units, enabling real-time tracking of performance metrics. This remote monitoring capability allows administrators to proactively manage power usage and ensure that systems are operating within safe parameters.

Furthermore, the DX,FM series is designed with a high level of redundancy. This built-in reliability feature ensures that if one unit fails, others can seamlessly take over, maintaining power supply continuity. This is critical for mission-critical environments where power outages could result in substantial financial losses or data loss.

In summary, the American Power Conversion DX,FM series incorporates modularity, advanced battery technology, effective cooling solutions, and sophisticated monitoring features to deliver an ideal power management solution for various organizations. Its design prioritizes flexibility, reliability, and efficiency, making it an essential investment for any business looking to safeguard its operations against power disruptions.
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