Nilfisk-ALTO NEPTUNE 1 User Manual
Page 8

6
1)
Options / model variants
Original instruction
NEPTUNE 1, NEPTUNE 2
NEPTUNE 2 Special
3.6
Connecting the high 
pressure hose
1. Put the quick connector of
the high pressure hose onto 
the nipple on the cleaner.
1)
3.5
Fill up fuel tank
NOTE!
At temperatures below 8° C, the fuel 
oil begins to solidify (paraffin precip-
itation). This can lead to difficulties 
in starting the burner. Before the 
winter period either add a solidifica-
tion point / flow improver (available 
from the fuel oil trade) to the fuel or 
use winter diesel fuel.
With the machine cold:
1. Pour fuel (fuel oil EL,
 
or Diesel oil DIN 51 603)
into the fuel tank.
The fuel must be free from con-
tamination. 
Tank capacity see chapter 9.4 
Technical data.
Be careful not to damage the 
fuel tank filter to avoid dirt enter-
ing in the tank
3.7
Connecting the water 
supply
1. Rinse the water supply hose
briefly in order to prevent 
sand an other dirt particles 
entering into the machine.
2. Connect water supply hose
to the machine.
3. Open water tap.
NOTE!
See chapter 9.4 Technical Data for 
required quantity of water and water 
pressure. 
In the case of poor water quality 
(sand, etc.), we recommend that a 
fine water filter is fitted in the water 
inlet.
We recommend the use of a textile-
reinforced water hose with a nomi-
nal diameter of min. 3/4" (19 mm).
3.4 Antiscale
The Nilfisk Alto Antiscale dosing 
system is set by the factory. 
To adjust the water hardness we 
recommend that the inlet water 
is tested accordingly.
Use the schematic to find the 
right dosage of No Scale/anti 
stone and water, and add the 
mixture to the antiscale tank.
Machine flow L/h
Pump size ml/h
˚dH
˚f
˚e
Dosage
600
35
0-12
0-21,5
0 - 15
1:2 = 12ml/h
600
35
12-30
21,5 - 53,7
15 - 37,5
Pure = 35ml/h
700
35
0-12
0-21,5
0 - 15
1:1 = 17ml/h
700
35
12-30
21,5 - 53,7
15 - 37,5
Pure = 35ml/h
800
35
0-12
0-21,5
0 - 15
1:1 = 17ml/h
800
35
12-30
21,5 - 53,7
15 - 37,5
Pure = 35ml/h
