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The Construction and Function of
the High pressure Cleaner
Your new high pressure cleaner is con-
structed as shown in the functional dia-
gram and photograph No 2 - 6. The
machine consists of a low pressure side
and a high pressure side with a built in
boiler system and high pressure pump
(2.16). From the water inlet (2.24) the
water is carried through the float valve
(2.26), into the pre-heater (2.7) and into
the water box (2.23). At maximum water
level the float valve shuts off the water
supply. Part of the water from the water
inlet (2.24) will be led directly to the con-
trol unit (2.20). When the pistol handle
(2.29) is activated a flow will be created in
the control unit and the high pressure
cleaner will start via a signal from the flow
switch (2.21). From the water box the
water is sucked into the three cylinder
pump which is driven by the electric
motor (2.14). From the low pressure
chamber of the high pressure pump the
water is sucked through the suction
valves into the cylinders. Here the water is
pressurised and pumped through the
pressure valves into the high pressure
side through the flow switch (2.21) and
into the coil (2.6) where it is heated to the
required temperature to give hot water or
steam. The operating temperature is set
and adjusted on the thermostat (2.32).
The water is pumped through the pres-
sure outlet (2.35) and into the high pres-
sure hose (2.28), to the pistol (2.29), the
lance (2.30) and out through the nozzles
(2.1) and (2.2).
The pressure of your high pressure clean-
er is adjustable by way of the pressure
regulation handle (2.3) and can be read
on the pressure gauge (5.2). If the water
pressure exceeds the normal working
pressure the built-in safety valve will run
in by-pass and thereby prevent damage
to the high pressure cleaner.
The flow switch shuts off the oil burner via
the solenoid valve if the water supply
No Voltage Release
Protects against re-start of the high pres-
sure cleaner following voltage supply fail-
ure.
Stop the high pressure cleaner by setting
the start/stop knob (2.33) in position "0"
and start the machine.
Flame Control
Yuor machine may be equipped with
flammme control. The flame control (2.8)
ensures correct oil burner operation. Any
combustion fault conditions will cause the
oil burner to be switched off after 20 sec-
onds. When the oil burner is switched off
the machine will continue operation as a
cold water cleaner.
Stop the high pressure cleaner by setting
the start/stop knob (2.33) in position "0".
Remedy the fault (see "Faultfinding") and
re-start the machine.
DESCRIPTION
should fail, so that overheating and boil-
ing dry are prevented.
The oil pump (2.9) which is driven by the
electric motor sucks fuel from the oil tank
(2.11) through the oil filter (2.13).
The high pressure cleaner can operate
with cold water, hot water or steam. For
hot water and steam operation the outlet
water is pre-heated on the low pressure
side in the pre-heater, while on the high
pressure side it is heated by means of the
burner (2.10) to the operating tempera-
ture in the boiler coil.
The high pressure cleaner is equipped
with a steam bloc (2.19). For re-circulation
the water may be heated to 130°C.
Detergent is added via the detergent
valve (2.17) from an external detergent
tank (2.15) which may be placed on the
holder for detergent tank (2.34). By
means of the built-in injector it is possible
to dose up to 6% detergent.
The dosing pump doses water softener
from the container (3.1) into the water
box.
2.1
High pressure jet
2.2
Low pressure jet
2.3
Pressure regulation handle
2.4
Overheating protector
2.5
Thermostat sensor
2.6
Heating coil
2.7
Pre-heater
2.8
Flame control
2.9
Oil pump
2.10
Burner
2.11
Fuel tank
2.12
Fuel level control
2.13
Fuel filter
2.14
Electric motor
2.15
Detergent tank
2.16
High pressure pump
2.17
Detergent valve
2.18
Top section
2.19
Steam bloc
2.20
Control unit
2.21
Flow switch
2.22
Floater
SAFETY CIRCUITS
Cover Switch
The cover switch (4.1) switches off the
machine if the cover is opened during
operation.
Stop the high pressure cleaner by setting
the start/stop knob (2.33) in position "0".
Close the cover and re-start the machine.
Overheating Protector
The overheating protector (2.4) will stop
the high pressure cleaner if the boiler
temperature exceeds 140°C.
Stop the high pressure cleaner by setting
the start/stop knob (2.33) in position "0".
Let the high pressure cleaner cool for 15
min. and re-start the machine.
Overload Protector
Thermal switches in the pump motor
housing protect the electric motor against
overload. The control voltage for all con-
trol and safety functions is 24V low-fre-
quency voltage. In case of overload the
high pressure cleaner will be switched off.
2.23
Water box
2.24
Water inlet/low pressure side
2.25
Water pressure control/water
supply
2.26
Float valve
2.27
High pressure side
2.28
High pressure hose
2.29
Pistol
2.30
Double lance
2.31
Crane hook
2.32
Operating thermostat
2.33
Start/stop knob
2.34
Detergent tank
2.35
Pressure outlet
2.36
Cap for L/C waste box
3.1
Water softener tank
3.2
Oil waste box
4.1
Cover switch
4.2
Drain off - Boiler shell
5.1
Water softener Gauge
5.2
Pressure Gauge
6.1
Lamp for Operation
6.2
Lamp for Re-start
6.3
Lamp for phase sequence
control
6.4
Lamp for fuel level
6.5
Lamp for flame control
6.6
Lamp for water inlet control
Stop the high pressure cleaner by setting
the start/stop knob (2.33) in position "0".
Let the motor cool for 15 min. and re-start
the machine.
Phase Sequence Control
Your high pressure cleaner has a built-in
phase sequence control which will pre-
vent the oil burner from starting if the
direction of rotation of the machine is
incorrect.
Water Pressure Control
The water pressure control (2.25) switch-
es off the oil burner if the water inlet pres-
sure is too low.Stop the high pressure
cleaner by setting the start/stop knob
(2.33) in position "0". Remedy as required
(see "Fault Finding") and re-start the
machine.
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