4.0OPERATION & MAINTENANCE
The XDA is activated by turning on the ON/OFF switch on the bottom of the unit, near the power cords. All fans operate continuously to remove the maximum amount of heat from the cab- inet.
If a power failure should occur on the primary power source, the XDA will operate from the secondary source until the primary power source is restored.
ON/OFF switch
(seen from below the XDA)
The XDA will continue to operate as
long as either of the two power sources is available.
The Liebert XDA is essentially
8