Maintenance

12.2Routine Maintenance

Become thoroughly familiar with the equipment, but at no time go beyond the specific procedures in this manual while performing maintenance or correcting a malfunction. If you have any doubt as to what must be done, call Emerson® Network Power Liebert® Services at 1-800-LIEBERT for further instructions. The UPS is designed for unattended operation, but does require some common sense maintenance.

• Keep good records—Troubleshooting is easier if you maintain historical service records.

• Keep the UPS free of dust and any moisture.

• Keep the UPS cool:

• Battery systems must be kept in the range of 72-77°F (22-25°C) in order to meet design speci- fications for capacity and longevity.

• The UPS will reliably meet all performance specifications at temperatures up to 104°F (40°C), and can be slightly derated for operation at even higher temperatures. However, performance and longevity will be optimized when the UPS is operated at the same temperature as the batteries.

• Keep connections tight.

• Tighten all connections at installation and at least annually thereafter. (See 12.2.5 - Torque Requirements).

12.2.1 Record Log

Set up a maintenance log to record scheduled checks and any abnormal conditions.

The log should have space for all metered data including phase readings, alarm messages, UPS mode of operation, air filter replacement date, and observation notes. A second log should be maintained for the battery module as directed by the battery manufacturer.

A periodic walk-through inspection of the UPS and battery rooms is advised to check for visible and audible indications of problems. Log the inspection, metered parameter indications, and any discrepancies.

12.2.2 Air Filters

The air filters must be inspected and serviced on a regular schedule. The period between inspections will depend upon environmental conditions. Under normal conditions, the air filters will require cleaning or replacement approximately every two months.

All Liebert APM models have replaceable filter elements behind the grille in the front of the unit. This element can be changed with the UPS operating, by opening the outer door for access.

Abnormal or dusty conditions will require more frequent cleaning and replacement of air filters. Inspect installations in new buildings more often, then extend the inspection period as experience dictates.

12.2.3 Battery Maintenance

! WARNING

Risk of electrical shock and arc flash. Can cause property damage, injury and death.

These maintenance procedures will expose hazardous live parts. Refer servicing to qualified personnel.

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Emerson 115-208, 115-120, 15-90KVA, 115-50/60HZ, 115-600V Routine Maintenance, Record Log, Air Filters, Battery Maintenance

115-600V, 115-208, 115-120, 115-50/60HZ, 115-480 specifications

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