32

3.1 Starting the machine

The control current outlet (low voltage) should be
connected to a control current lead running the length of
the pipes.
Both ends of the low-voltage lead should be connected
to the connection panel on the vacuum cleaner. One lead
to each outlet.
The central vacuum cleaner’s power cable must be
connected to a 230 volt mains socket. The appliance is
double-insulated and does not need to be earthed.
The vacuum cleaner starts and stops automatically.
When the vacuum hose is connected to a vacuum socket,
a metal ring on the end of the hose closes the control
circuit and the vacuum cleaner starts up. 7. When the
hose is removed from the vacuum socket, the vacuum
cleaner stops. You should allow the hose to empty of dust
and dirt before switching the vacuum cleaner off.
If you use a hose with an on-off switch, you can start
and stop the vacuum cleaner using the switch on the
handle, Fig. 8.

3.2 Servicing

Always unplug the power cord before

doing any service work!

If suction is poor, it indicates that the fl ow of air through
the machine is restricted. This may be due to the following:
The dust bag is full and should be replaced.
• The lter is clogged and should be cleaned.
The vacuum cleaner has a thermal cut-out that trips if
the vacuum cleaner becomes overheated. If this happens
- unplug the main power cord to reset the vacuum cleaner.
Wait 5-10 minutes to allow the machine to cool down.
While you are waiting, check the hose, dust bag and fi lter
to be sure that nothing is blocking the fl ow of air through
the machine. The vacuum cleaner should now start again.
If the cut-out trips again, you need to get a service fi rm to
remedy the fault.
The Centix 20 should only be operated with a dust bag
and fi lter installed.
3 Operating instructions Centix 20
1
2
Fig. 7 Fig. 9
Fig. 8
Filter