Emerson 540VDC manual Reporting a Problem, Corrective Actions, Recommended Test Equipment

Maintenance

7.9Reporting a Problem

If a problem occurs within the Liebert FS, review all alarm messages along with other pertinent data. This information should be given by telephone to the Liebert service representative’s office nearest you. This information can be downloaded to Liebert Services by using the optional modem. Contact Liebert Services at 1-800-LIEBERT to report a problem or to request assistance.

7.10Corrective Actions

For each alarm message on the operator control panel, you can find the recommended corrective action in Table 16.

7.11Recommended Test Equipment

Table 13 lists recommended test equipment and tools required to maintain, troubleshoot and repair the Liebert FS. You may substitute instruments of equivalent range and accuracy.

All instruments should be calibrated and be within the current calibration cycle. Calibration data for the instruments should be maintained in equipment-history files and the instruments labeled for audit and verification.

Table 13 Recommended test equipment and tools

Qty	Test Equipment	Manufacturer	Model or Type
1	Oscilloscope	Tektronix, H-P or Fluke	DC to 50 MHz
2	Voltage Probes	Tektronix, H-P or Fluke	10X, with 10 ft cable
2	Voltage Probes	Tektronix, H-P or Fluke	100X, with 10 ft cable
1	Digital Multi-meter	Fluke	87, with test leads
1	Tool Kit	N/A	Standard electrical contractor tools

7.12Limited Life Components

Your Liebert FS has a design life well in excess of 15 years. Well-maintained units can continue to provide economic benefits for 20 years or more. Long-life components are used in your Liebert FS wherever practical and cost-effective.

However, due to current component material and manufacturing technology limitations, a few compo- nents in your Liebert FS will wear out and require replacement in less than 10 years. The following limited-life components are utilized in your Liebert FS. In order to prevent a wear-out failure of one of these components affecting your critical load operations, it is recommended these components be peri- odically inspected and replaced before their expected wear-out life. Individual users may have site- specific requirements that differ from these typical life expectations.

Table 14 Projected component life, replacement schedule

Component	Expected Life	Replace in:
Power DC filter capacitors	About 7 years	5-6 years
Air filters, disposable	1-3 years	Check 4 times/year
(see also 7.6 - Optional Air Filters)

Power capacitors are considered “failed” when their measured capacitance is –5% below their name- plate rating.

In most cases, replacement components must exactly match the original component specifications and are not readily available from third-party component distributors. For assistance with your specific component specifications, replacement component selection and sourcing, call 1-800-Liebert.

For customers using Liebert Services’ Preventive Maintenance Services, periodic inspection of these components are part of this service as is recommending to customers replacement intervals to avoid interruptions in critical load operations.

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