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3.0 Connections EN
3.1 Water connection
The water input is connected at the back of the
machine. The machine can be connected directly
to the mains water supply, or it can work as a self-
priming unit*).
For direct water connection the inlet hose must be
at least 6 m long, and the water temperature must
not exceed 85°C. Please note that connection to
the public water supply may entail mounting of a
fl oat cham ber.
If there is sand or other impurities in the water, it is
advisable to provide an external water fi lter in ad-
dition to the internal fi lter situated behind the quick
coupling.
For connection of air motor, see section 9.0.
*) With cold water (up to 8°C) the cleaner will oper-
ate satisfactorily with up to a 5 metre diffe rence of
level between cleaner and water supply.
The pump and the inlet hose must be connected to
the water supply before starting up. When working
with hot water (85°C) the cleaner must be below or
on a level with the point of water supply. Working
with hot water and connected to high pressure
hoses longer than 10 m or inlet hoses shorter
than 6 m, the cleaner must be equipped with a
fl oat chamber. The same applies if the outlet of the
cleaner is connected to a tube system.
4.0 Standard equipment
The cleaner is delivered with a double lance and
a spray handle together with high pressure hose
as standard equipment. The low pressure tube is
equipped with a fl at jet nozzle 6530 and the high
pressure hose with a fl at jet nozzle 1506.
The fi rst two fi gures of the nozzle reference
number indicate the spray angle in degrees and
the last two indicate the water fl ow in I/min. at a
pressure of 20 bar and a tem per a ture of 20°C.
The equivalent hole diameters for nozzle 1506 is
1.6 mm and for nozzle 6530 is 3.6 mm. Do not
replace with nozzles of a smaller diameter. The
maximum working pressure and temperature
are printed on the standard high pressure hose.
Only use Nilfi sk-ALTO high pressure hoses. In
case of damage, arrange for Nilfi sk-ALTO service
engineers to repair it. Do not attempt to repair it
yourself.
The thrust on the nozzle is for:
2603KLU 31N (3.2 kp)
As the thrust forms an angle with the spray lance,
the spray handle is subject to torque.
As standard equipment the cleaner is delivered
with chemical injector for addition of detergents.