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Operating instructions GB
7. Anti-incrustation - „ALTO No Scale“
Light indicator: insufficient „No Scale“
Dark indicator: sufficient „No Scale“
Only use „ALTO No Scale“.
To avoid incrustation of the piping of the boiler and thus ensure optimum operation, an anti-incrustant -
„ALTO No Scale“ should be added, which is available from your ALTO distributor. Fill the anti-incrustant
through the socket (1) and it will automatically be added to the water in a balanced dosage. Any lack of
„ALTO No Scale“ will appear from a change of colour from dark to light on the indicator (2).
3.2 Starting-up procedure
Machine signals ready for operation.
Press - I - for starting-up.
Don’t start the machine until the high pressure hose has been correctly mounted.
When the machine is fed with voltage the signal will appear on the digital display of the control panel.
meaning that the machine is ready for operation, and that the electronic control system has not found
any malfunctions.
If a flashing S appears, you will have to wait 10 seconds before the machine can be started (see sec-
tion 6.1).
If the is flashing, the electronic control has ascertained that water is flushing through the machine.
Mount the high pressure hose and make sure that the spray handle is closed - then check that the
is constantly alight.
Now the machine can be started up by pressing the start button marked I .
IMPORTANT: When the machine is in operation and the spray handle inactivated, the machine will stop
after approximately 40 sec. The signal will appear on the digital display of the control panel meaning
that the machine can be restarted by activating the spray handle.
NB! If the pressure of the inlet water is below 1,5 bar the machine can only be restarted in low pressure
mode - reduction valve turned completely counter clockwise.
After restart the pressure may be regulated.
Direction of rotation of the motor
The direction of rotation of the motor should be correct in order to ensure air supply for the
boiler. If the direction of rotation is wrong, the motor will stop immediately upon the starting-
up and the fault code will flash on the display of the control panel. To correct this fault,
please see section „7.0 Trouble shooting chart“.
3840HA_EU.p65 28-02-01, 11:2410
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