Transfer Control switch to “Bypass To S2” position. If source 2 is not available and the load is not connected to source 2 before the switch is rotated to the “Bypass To S2” position, power to the load may be interrupted. If the load is connected to source 1 and the SmartSwitch will not transfer the load to source 2, initiate a bypass to source 1.
System Shutdown. Power to both SmartSwitch inputs must be turned OFF to ensure system shutdown.
Transfer Test. For continued protection against the SmartSwitch failure, periodic transfer test- ing of the SmartSwitch is recommended.
For manual transfer test, with both input sources available and synchronized (no Summary Alarm present), rotate the Bypass/Transfer Control switch from the “Normal” to “Man. XFER S1” or “Man. XFER S2” positions (whichever is the alternate source) and observe proper switch trans- fers (observe change in “On Preferred Source” and “On Alternate Source” indicator lights). Return Bypass/Transfer Control switch to the “Normal” position and after the retransfer delay, observe proper switch transfer back to the preferred source (observe change in “On Alternate Source” and “On Preferred Source” indicator lights).
For automatic (programmable) transfer testing, see the
Preferred Source Selection. The SmartSwitch allows either input source to be designated as the preferred source to which the load is transferred to and remains transferred to as long as the source remains available.
For 13 to 20 amp units in the rackmount enclosure (see Figure 2), to change the preferred source, place the unit in bypass to either input source, following the bypass procedure. Unlock and the removable electronics module. Slide out (remove) the electronics module from the main enclosure. Rotate the Preferred Source selector switch located on the rear of the electronics module to the desired preferred source.
On 25 to 60 amp units in the
