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Symmetra® MW with Internal Bypass Static Switch - User Guide - 990-1756A-001 33
Bypass Operation
During bypass operation, the critical load is supplied directly by utility power. A single-line diagram
will appear on the screen with an orange line indicating the power flow through the Bypass SSW to
the load.
CAUTION!
Do not open Q2 or Q5 when the UPS is in bypass operation, as this action may result in a
load drop or a failure of the UPS to support the load.
Breaker Identification
Q1 UPS input breaker Q5 Static bypass input breaker
Q2 UPS output breaker Q7 Battery breaker 1
Q3 Manual bypass breaker Q8 Battery breaker 2
Note
Only operate a breaker when the associated breaker lamp is on.
Main inverterDelta inverter
Battery
Bypass Static Switch