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Maintenance 17
6.0 M
AINTENANCE
Minimal periodic maintenance of the SmartSwitch is required in normal operation. For assurance
of continued protection against SmartSwitch failure, periodic transfer testing of the Smart Switch
is recommended. For manual transfer tests, refer to the transfer test information in the operating
guidelines section of this manual. For automatic transfer tests at programmed intervals, see the
RS-232 communication port information in the operating instructions in 3.3 - RS-232 Communi-
cations Port.
The SmartSwitch includes a replaceable electronics module. To replace the electronics module,
follow the unit bypass instructions and place the unit on bypass to the source that is currently
supplying the load. Unlock and unlatch the electronics module. Slide the electronics module out of
the SmartSwitch. Replace the module with a module having the same part number or approved
equivalent. Failure to use the approved replacement module may result in misoperation of or
damage to the SmartSwitch.
Monitoring of the SmartSwitch status (such as by way of the status relay output) is strongly rec-
ommended to allow detection of source failures or SmartSwitch failures before loss of power to the
load. A summary alarm in the absence of any source failure or transfer inhibit alarm generally
indicates a SmartSwitch failure. Prompt action to identify and correct the situation is recom-
mended to prevent loss of power to the load.
Even the most reliable equipment can fail. For information or repair assistance, contact your local
Liebert representative or Liebert Global Services. To contact Liebert Global Services in the U.S.,
call 1-800-LIEBERT.
!
WARNING
THERE ARE NO USER-SERVICEABLE PARTS INSIDE THE
REMOVABLE ELECTRONICS MODULE. OPENING OR
REMOVING THE COVER OF THE REMOVABLE ELECTRONICS
MODULE MAY EXPOSE HAZARDOUS VOLTAGES, EVEN WHEN
THE SMARTSWITCH IS IN BYPASS. DO NOT ATTEMPT TO
SERVICE THIS PRODUCT YOURSELF. REFER ALL SERVICING
TO QUALIFIED SERVICE PERSONNEL.
!
CAUTION
The unit is supplied by two power sources. Unit may be
electrically live if either of the two input sources is ON, even
when the electronics module is removed. Lethal voltages exist
inside the unit. Turn OFF and lock out BOTH input power sources
before removing covers or working inside.