Nilfisk-Advance SC DELTA Instructions For Use Manual page 9

SC DELTA
3. Pull forward the spray lance or any other accessory to
ensure correct mounting before starting the machine.
NOTE! Clean nipple of any impurities each time the spray
lance has been dismounted.
B.1.3 Application of detergents (external, only 160
bar machines)
If you want to apply detergents or disinfectants these should
be dosed to the water through an injector. In conjunction
with the injector it may be ad van ta geous to use a wall rack
on which spray lances, 2 pcs. of 25 l containers as well as
10 m high pressure hose can be placed.
Below you will fi nd various types of outlet points with injectors.
1. Outlet point with detachable injector
To be attached to the quick coupling of the high pressure cock.
To be used for dosing of low-foaming detergents or disin-
fectants.
Dosage 1-8%.
2. Outlet point with detachable foam injector
To be attached to the quick coupling of the high pressure cock.
To be used in conjunction with foam lance for application of
high-foaming de ter gents or disinfectants.
Dosage 1-5%.
3. Outlet point with cleaning trolley and foam injector
To be attached to the quick coupling of the high pressure cock.
To be used in the same way as "Outlet point with detachable
foam injector".
Makes it possible to place 4 spray lances, 2 pcs. of 25 l
containers as well as 20 m high pressure hose.
B.2 Start
B.2.1 First activation of the main switch with con-
nected main power supply
By turning the main switch to ON position the control system
will start the self-validation procedure and start up the display,
please note that there is a start-up delay on the display.
In the self-validation mode, the water tank is fi lled up with
water and all the protection circuits are checked. The green
circle around the start button will fl ash.
If the water tank is not fi lled up in 4 minutes, the system will
stop and the water supply needs to be checked. The water
level in the water tank is shown on the display.
When the water tank is fi lled with water and the system is
ready to start, the green circle will stop fl ashing.
B.2.2 Start/stop
Press the start button on the display (FIG.1 #3) and the
green circle around the button will light up.
Press the stop button on the display (FIG.1 #4) and the
Original Instructions
machine will stop and turn the green circle off .
When the start button is activated the machine will start up
Motor Pump Unit (MPU) to reach the wanted pressure, it
is shown on the display which MPU that is activated, the
specifi c MPU-symbol (FIG.1 #8) lights up green. MPU´s
will automatically be turned on/off when output water fl ow
is changed, and the frequency inverter will adjust the line
pressure to the selected pressure. Actual line pressure is
shown on the display (FIG.1 #2).
B.2.3 Line pressure adjustment
The line pressure from the machine can be adjusted. To adjust
the pressure, push on the pressure value by the pressure
adjustment tab on the display (FIG.1 #13) for 20 sec. then
use the +/- tab to adjust to the wanted pressure and press
OK to save the value or press cancel to undo the change.
NOTE: If the pressure change is permanent, adjustment of
the mechanic bypass valve is necessary.
B.2.4 Water tank
The water level will automatically be maintained by the con-
trol system, the inlet valve symbol will light up blue on the
display when the inlet valve is activated. The actual water
temperature is shown on the display (FIG.1 #1).
If the Cold/Hot option is mounted on the machine the water
temperature is adjusted to the selected temperature, two
valves are shown on the display, one for Cold inlet water
and one for Hot inlet water, when the Cold valve is activated
it lights up blue and when the hot valve is activated it lights
up red. To adjust the temperature, push on the temperature
value by the temperature adjustment tab on the display
(FIG.1 #12) for 10 sec. and use the +/- tab to adjust to the
wanted temperature and press OK to save the value or press
cancel to undo the change.
B.2.5 Bypass system
When the output water fl ow is reduced, the bypass system
will activate. When the bypass system is activated, the water
will return to the water tank, the actually volume is shown
on the display (FIG.1 #14), the bar light up and show the
water volume, if 1/3 of the bar is blue on a 6 MPU machine,
the water from two MPU´s is returning to the water tank.
If more than one pump is active all the redundant pumps
will stop after 8 seconds, if the outlet is completely closed
the last pump will stop after 20 sec.
The machine is still active and starts up again when the line
pressure drops below the start pressure.
B.2.6 Errors and warnings.
There are two types of failures in the control system on the
machine:
• Error: Inverter error, Critical water level, All MPU deac-
tivated, Inlet water fl ow low, low output pressure, High
temperature water tank, remote or display communication
failure. These errors will stop the machine immediately
because it is critical for the machine or connected systems.
• Warnings: MPU oil level low, MPU thermic high temp,
MPU overload protection activated, abnormal water level
EN
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