Salicru UPS SLC-4000-TWIN PRO(B0)

Ensure all battery replacement is done by qualified personnel

Verify that all batteries are replaced at the same time with the same quantity and type

Confirm no voltage is present before touching the batteries

Ensure internal battery fuses are removed and interlink connections are disconnected

Replace all batteries following manufacturer instructions

Ensure no short circuit between + and - poles

Use original parts for any wire connection replacements

Press the key on any UPS for more than 3 seconds to shutdown all inverters.

Put all equipment on manual bypass by removing the cover from the manual bypass switch and turning all switches to 'BYPASS'.

Ensure the day chosen has the lowest probability of faults (no fluctuations, no storms).

Turn the input and bypass circuit breaker protections of the distribution panel to 'Off'.

Disconnect the communication bus and all power connections of the faulty equipment.