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6.8 How to Use the Maintenance Bypass Switch Located on the Rear Panel
IMPORTANT: Improper use of the internal Maintenance Bypass Switch will void the equipment
warranty. The following instructions must be followed whenever this switch is used.
1. Press the”Off/Bypass” button for 5 seconds to place the UPS into bypass mode.
2. On the rear of the transformer module, remove the two phillips screws securing the upper and lower sides
of the maintenance bypass security cover plate.
3. On the rear of the transformer module, turn the Maintenance Bypass Switch to “Bypass”. The maintenance
bypass icon will be displayed on the LCD display.
4. The output transformer is now in maintenance bypass mode.
5. To return to normal UPS mode operation, switch the Maintenance Bypass Switch to INV. Replace the
switch cover plate and secure it with the screws previously removed.
6. Press the “On” button on the UPS module to return the UPS to normal inverter operation.