Temperature Control; Spray Lance, Regulation Of Pressure And Water Volume - Nilfisk-ALTO CONTRACTOR MASTER Instruction Manual

3.4 Temperature control

Adjust the temperature control (16) to the required temperature.
Indicator lamps on the temperature dis play (17) show the actual temperature of the outlet water.
Cold water mode: Upon the starting-up procedure the machine is immediately ready for cleaning with
cold water.
Hot water mode: Adjust the tem per a ture control (16) to the required tem per a ture, 30-95°C.
Steam mode: Screw the valve for reg u la tion of the water volume (22) home (clock wise), and adjust
the temperature control (16) to the required tem per a ture, 95-150°C.
Note: The max temperature of 150°C can only be reached with the re duc tion valve
(27) of the spray lance ad just ed to high pressure (turn clockwise until stop).
IMPORTANT: When adjusting to tem per a tures above 95°C the valve for reg u la tion of the water volume
(22) must be screwed completely home (clock wise) upon which the temperature control (16) can be
adjusted to the re quired tem per a ture, 95 - 150°C.

3.5 Spray lance, regulation of pressure and water volume

27
High pressure operation
The max working pressure of the ma chine is reached when the pressure reducing valve (7) is completely
closed (B) and the valve for regulation of the water volume (22) is quite open (turned in the direction of the
arrow). In this position only the high pressure nozzle is used - high pressure mode. The water volume is
infi nitely variable between min and max output.
When the spray handle is inactivated, screw the valve for regulation of the water volume (22) home (in the
opposite direction of the arrow). This corresponds to a working pressure of 30 bar and a water volume of
approximately 8 l/min. If you want to increase the water volume, turn the valve in the direction of the arrow
until the re quired volume has been reached. 1 turn gives an increase of approx. 40 bar pressure.
Low pressure operation
If a completely reduced pressure is required, open the reduction valve (A) completely. The nozzle pres sure
will then be approx. 5 bar. In this position both spray lances are used - low pressure mode.
8
300 150
50 60 70
40
80 265 130
30 90
230 110
100
110 195 90
120
160 70
130
150 140
˚C 125 50
˚F ˚C
TEMP
16
Operating instructions
17
Cold water mode
Hot water mode
Steam mode
22
Turn pressure reducing valve:
Clockwise (B): high pressure
Counter clockwise (A): low pressure
22
The spray lance features 2 nozzles; a
high pressure nozzle and a low pressure
nozzle.
EN
0 - 50°C
50 - 95°C
95 - 150°C