Installation and Troubleshooting 2- 17
4. Make sure the cable is push ed up to the right side and the n slide the
power supply into the back of the co ncentrator 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 powe r connector on the power
supply (and to the backup pow er supply, if you have one), you must verify
that the voltage s elector is correctly set for your country line voltage.
Caution: An incorrect voltage se tting can damage the power
supply.
1. Set the power switch to the Off (O) position.