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Installation and Troubleshooting 2 - 17
4. Make sure the cable is pushed up to the right side and then slide the
power supply into the back of the concentrator as shown in
Figure 2-10. Then fasten with the four (4) screws you removed
earlier from the fan unit.
Figure 2-10. Installed Backup Power Supply
Selecting the Power Supply Voltage
Before you plug in the power cord to the power connector on the power
supply (and to the backup power supply, if you have one), you must verify
that the voltage selector is correctly set for your country line voltage.
Caution: An incorrect voltage setting can damage the power
supply.
1. Set the power switch to the Off (O) position.