Meridian Data 16i manual Cooling Module Maintenance

Chapter 5: Subsystem Maintenance and Upgrading

WARNING!

1.When a PSU is removed form the chassis, the cooling module is also removed from the chassis.

2.It is recommended that the replacement procedure is completed in less than five (5) minutes to prevent the subsystem from overheating.

Step 5. Install the replacement module. Make sure the ejection handle is at its up-most position so that the saddle notches on the sides of the handle can snap onto the metal protrusions along the interior walls of the PSU slot. Push the PSU into chassis, and when you feel the contact resistance, push the handle downward to secure the module.

Step 6. Secure the PSU to the subsystem by fastening the retention screw through the PSU ejection handle.

Step 7. Replace and Connect the power cord that connects the PSU module to the mains.

Step 8. Power on the PSU module.

5.6Cooling Module Maintenance

5.6.1Notes on Cooling Module Maintenance

ƒRedundant cooling modules: The subsystem is equipped with four (4) cooling fans, two (2) within each PSU module. These cooling modules control the internal operating temperature of the subsystem and therefore their working integrity should be maintained at all times.

Although the cooling modules are fully redundant, it is not advisable to run the EMD subsystem with fans in a single PSU module for an extended period of time. If the cooling fans in the only remaining PSU module fail, the subsystem will quickly overheat.

ƒDetecting a failed cooling module: If a cooling module fails, the LEDs located at the back of the PSU module, an audible alarm, the firmware, the RAIDWatch manager software, or the Configuration Client can notify you.

ƒReplacing a cooling module: Once you are notified that a cooling module has failed, it should be replaced as soon as possible. A failed cooling module should only be removed from the subsystem when you have a replacement module immediately available.

5-15