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| NetSure Rectifier Module User Manual (UM1R483500e) | Rev. R
29
Rectifier Fan Replacement
Each rectifier uses a fan (P/N 32010086 for 1R483200 rectifier module. P/N 32010109 for 1R483200e,
1R483500e, and 1R484000e rectifier module) for cooling. If fan replacement should become necessary,
perform the following procedure.
CAUTION! In a system with NO redundant rectifier, battery must have sufficient reserve to power the
load(s) while the rectifier is removed for fan replacement.
NOTE!
When performing any step in this procedure that requires removal of existing hardware, retain all
hardware for use in subsequent steps.
Procedure
NOTE!
Refer to
Figure 17
as this procedure is performed.
1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable
these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard
any alarms associated with this system while this procedure is performed.
2. Remove the rectifier from the shelf. Refer to a previous procedure for step-by-step instructions.
3. Place the rectifier on a static-safe work surface. Connect an approved grounding strap to your wrist for
the remainder of this procedure.
4. On this rectifier, loosen the three (3) screws on the rectifier front cover and remove the cover.
5. For proper orientation of the new fan, observe the location of the fan wires and the air flow arrows on the
old fan.
6. Unplug the power cable of the old fan and remove the fan.
7. Plug the power cable of the new fan and place the new fan in the space vacated by the old fan. Ensure
the fan wires and air flow arrows match the orientation of the old fan.
8. Position the rectifier front cover back into place and secure with the screws previously removed.
9. Replace the rectifier into the shelf. Refer to the previous procedure for step-by-step instructions.
10. When the fans start, check to ensure that each is providing front-to-back airflow. If air direction is
wrong, immediately remove the rectifier from the shelf. Repeat previous steps to check fan orientation,
and correct as necessary. Reinstall the rectifier and again check for proper airflow.
11. Enable the external alarms, or notify appropriate personnel that this procedure is finished.
12. Ensure that there are no local or remote alarms active on the system.