Alpha Technologies Cordex CXPS-D 48-2500_5000A - Manual (Page 57)

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9. Maintenance
Although very little maintenance is required with Alpha systems, routine checks and adjustments are recom-
mended to ensure optimum system performance. Qualified service personnel should do the repairs.
The following table lists a few maintenance procedures for this system. These procedures should be performed
at least once a year.
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9.1 Rectifiers
It is recommended that every five years MOV surge suppressors are replaced (especially in areas of high light-
ning activity).
See Cordex rectifier manual for general maintenance information.
9.2 Controller Lithium Battery Replacement
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A removable lithium battery is located near the back and to the right of the motherboard. The battery life is rated
up to three years, but replace earlier if the panel does not maintain date and time during power interruption.
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To replace the lithium battery, shut down the CXC, remove the rear cover, and pull battery out carefully. Ensure
that the new battery is the same as the one being replaced.
9.3 Batteries
It is recommended that checks are made every six months for battery voltage, conductance, temperature, imped-
ance, connections, etc.
See battery manufacturer's manual for general maintenance information.