10
Variopress
thumbwheel
2.2.3 Electrical connection
Check the mains voltage of the machine before connecting it to the power supply. Make sure that the voltage
indicated on the rating plate agrees with the local mains voltage.
Only connect the machine with an approved plug. In the case of direct connection (without plug and socket), a main
switch must be installed by a qualified electrician.
On SC 730: If the display on the control panel is constantly lit up, the electrical socket must be connected by an
electrician in accordance with the local standards for the purpose of changing the rotational direction.
See rating plate for protection with fusible link or circuit breaker.
Avoid extension cables. When using extension cables, the cross-section may not be smaller than 2.5 mm2 and the
cable not longer than 50 m. Due to the danger of overheating, always unroll the cable drum completely.
2.3 Operation
2.3.1 Initial start-up
During the winter months, the water system is filled with antifreeze for shipping. Catch the first liquid which exits
(approx. 5 l) in a container for reuse.
2.3.2 Functional check
Cold-water operation:
H
Unlock spray gun and pull trigger.
H
Set unit switch to
position.
Hot-water operation:
H
Select temperature.
H
Unlock spray gun and pull trigger.
H
Set unit switch to
position.
H
When an even stream flows out of the high-pressure
nozzle, set unit switch to position
.
Steam mode (above 100 °C)
G
:
Replace standard spraying device with steam jet spray lance (No. 14786)
G
. Set thermostat to temperature above 100
°C. Open shroud. Open pressure and quantity control
G
(black rotary knob) on safety control block of high-pressure
pump by turning anti-clockwise.
Unlock spray gun and pull trigger. Set unit switch to
position. When an even stream flows out of the wide-
angle nozzle, set unit switch to position.
Pressure control:
The pressure and water quantity can be steplessly adjusted
with the Variopress thumbwheel
G
.
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