MGE UPS Systems S3 - Manual (Page 40)

K) Turn the DC circuit breaker on the front panel to the
OFF position. Verify that AC voltage is still on the AC
OUT terminal block TB3.
L) Loosen the thumb screws securing the Inverter module
into its receiver cabinet and remove the module. Verify
Utility voltage is still on the output terminal block, TB3.
M) Turn OFF all the AC and DC input voltages.
N) Reinstall the Inverter module. Inverter is ready for
operation. Connect loads and turn ON the unit.
WARNING
Module may be damaged if removed with the DC breaker closed.
ATTENTION
Le module risque d'être endommagé s'il est retiré avec le disjoncteur
DC fermé.
WARNUNG!
Entfernung des Moduls mit geschlossenem Gleichstromunterbrecher
koennte zu Schaden fuehren.
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Topaz S3 Inverters 0.5 kVA, 1 kVA, & 2 kVA