SERIVCE AND MAINTENANCE
User Manual 10H52246UM60 - Rev. 1 - 01/2017
81
Chapter 10
Service And Maintenance
The UPS system (including battery) requires regular service and maintenance in order to guarantee a long working
life. This section provides information about service life, regular inspections, maintenance and replacing key UPS
components. Efficient maintenance of the UPS system can reduce the risk of UPS failure and prolong the UPS
service life.
10.1
Safety
Warning
1. Daily inspections of the UPS systems may be performed by personnel who have received the appropriate training, whereas
inspection and replacement of components must be carried out by authorized professionals.
2. Components that can only be accessed by opening the protective cover with tools may not be operated by the user. Only
qualified service personnel are authorized to remove such covers.
3. Note that hazardous voltages may be present on the neutral line when servicing the UPS.
10.2
Key Components and UPS Service Life
Some UPS system components will have a shorter service life than the UPS itself due to the wear and tear they are
subjected to when in use. In order to guarantee the safety of the UPS system, it is necessary to inspect and replace
such components on a regular basis. This section lists the key UPS components and their respective projected
service life. In the case of systems where the operating parameters differ from the nominal working conditions
(environment, load rate, etc.), request professional assessment and advice on whether to replace such components,
with reference to the information provided in this section.
10.2.1
Service life parameters and proposed replacement intervals of key components
The key components listed in Table 10-1 are used in the UPS system. To prevent system failures caused by these
components malfunctioning due to wear and tear, we recommend carrying out regular inspections and replacing
them upon or before the expiry of their projected service life.
Table 10-1
Service life parameters and proposed replacement intervals of key components
Key components
Estimated life
Proposed replacement time
Proposed inspection
period
Fan
Not less than 7 years
Five to six years
One year
Air filter
One year to three years
One to two years
Two months
VRLA battery (5-year life)
Five years
Three to four years
Six months
VRLA battery (10-year life)
10 years
Six to eight years
Six months
10.2.2
Replacing Air Filters
The air filters must be inspected regularly and replaced at regular intervals, depending on the ambient conditions in
the area where the UPS is installed. Under normal environmental conditions, the air filters should be cleaned or
replaced once every two months, and more frequently in dusty or other hostile environments. The filters should also
be inspected more frequently when installed in new buildings.
The UPS air filters are fitted on the rear of the cabinet front doors and can be replaced without interrupting UPS
operation.
Each air filter is secured by a fixing bar on either side (see Figure 10-1).
