Vertiv Liebert EXL S1, Operation And Maintenance Manual

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4.2.2 Air Filters
The air filters must be inspected and serviced regularly. The frequency of inspections will depend on environmental
conditions. Under normal conditions, the air filters will require cleaning or replacement approximately every 2 months.
Abnormal or dusty conditions will require more frequent cleaning and replacement of air filters.
Inspect installations in new buildings more often, then alter the inspection period as experience dictates.
All Liebert® EXL S1 models have a replaceable air filter inside the front doors. These filters can be changed while the UPS is
in operation.
NOTE: Service and maintenance must be performed only by properly trained and qualified personnel and in
accordance with applicable regulations as well as with manufacturer’s specifications.
4.2.3 Limited Life Components
The Liebert EXL S1 has a design life well in excess of 10 years. Well-maintained units can continue to provide economic
benefits for 20 years or more. Long-life components are used in the UPS wherever practical and cost-effective. However,
due to the currently available component material, manufacturing technology limitations and the general function and use
of the component, a few components in the UPS will have a shorter life cycle and require replacement in less than 10 years.
The following components utilized in the UPS have a limited life cycle. To prevent a wear-out failure of one of these
components affecting the critical load operations, we recommend that these components be periodically inspected and
replaced before the expected expiration of their life cycle. The expected life of each component listed below is simply an
estimate and is not a guarantee. Individual users may have site-specific requirements, maintenance and other
environmental conditions that affect the length of the component’s useful life cycle.
In most cases, replacement components must exactly match the original component specifications.
These replacement components are not readily available from third-party component distributors.
For assistance with specific component specifications, replacement component selection and sourcing, contact Vertiv™
Technical Support. Visit the product page at www.Vertiv.com for the support available in your area.
Component Expected Life Replace in
Power AC Filter Capacitors 15 Years 12 to 15 Years
Power DC Filter Capacitors 15 Years 12 to 15 Years
Low-Profile Fans > 8 Years 6 to 7 Years
Air Filters 1 to 3 Years Check Four Times per Year
Battery, Lithium Logic Memory Backup 10 Years 8 to 9 Years
Battery, Storage
Lead-Acid Wet-Cell (User Selection) 15 to 20 Years 12 to 15 Years
Valve-Regulated, Lead-Acid (VRLA)
5 Years 2 to 3 Years
10 Years 3 to 4 Years
20 Years 8 to 12 Years
Lithium-Ion 15 Years 10 Years
Expected Life is sometimes referred to as Design Life .
Table 4.1 UPS Component Service Life
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