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Installing the plant
Only for authorised technicians!
!
Wall mount
–
Before installing, please check the load-bearing ca-
pacity of the wall. Use suitable anchor plugs and
screws for concrete walls, hollow component walls,
brick walls and gas concrete walls - for e.g. injec-
tion anchors (see packaging for drilling template).
–
The appliance should not be directly attached to
the network of water and high pressure pipes. It is
mandatory to install the connecting hoses.
–
A shut-off tap must be installed between the main
water supply and the connecting hose.
Installing the high pressure connections
All national laws and regulations about installation of
electrical appliances must also be followed when install-
ing high pressure lines.
–
The pressure loss in the pipe connections must lie
below 1.5 MPa.
–
The completed pipeline must be tested with
16 MPa (HDC 20/8) bzw. 32 MPa (HDC 20/16).
–
The insulation of the pipes must be resistant to
temperatures until 100 °C.
Water supply
ATTENTION
Risk of damage to the plant if water supply is not of suit-
able quality.
Note: Impurities in the inlet water can damage the unit.
Kärcher recommends a water filter with a mesh width of
< 80 µm.
Quality requirements for tap water:
pH value
electrical conductivity
removable materials
filterable materials (grain size be-
low 0.025 mm)
Hydrocarbons
Chloride
Calcium
Total hardness
Iron
Manganese
Copper
free of bad odours
* Test volume 1litre, Settling time 30 minutes
** decalcification measures are necessary if the values
are higher
The water inlet is to be connected to the main water
supply using a water hose.
–
The water supply must have a minimum output of
2,000 l/h at minimum 0.15 MPa.
–
Appliances without prepressure pump: The water
temperature must lie below 60 °C.
–
Machines with prepressure pump: The water tem-
perature must lie below 85 °C.
Note: Operating procedures create short term power
sinkings. During unfavorable net conditions other devic-
es might be disturbed.
ATTENTION
The highest allowed net impedance at the electrical
connection point (refer to technical data) is not to be ex-
ceeded. In case of confusion regarding the power im-
pedance present on your connection, please contact
your utilities provider.
–
For connection values, see technical data and type
plate.
–
The electrical connections must be done by an
electrician according to IEC 60364-1.
–
Current-carrying parts, cables and appliances in
the working area must be installed in a defectless
state and must be protected against water sprays.
DANGER
To avoid accidents due to electrical faults we recom-
mend the use of sockets with a line-side current-limiting
circuit breaker (max. 30 mA nominal tripping current).
Setting the maximum working pressure on
The appliance is factory set to a pressure of 8 MPa
(HDC 20/8) or 14 MPa (HDC 20/16).
Adjusting the overflow valve
6,5...9,5
< 2000 µS/cm
< 0,5 mg/l *
1
Adjustment screw for high pressure
2
Lock nut for high pressure
< 20 mg/l
3
Spindle of the pressure/quantity regulation
4
Adjustment screw for low pressure
< 20 mg/l
5
Locknut for low pressure
< 300 mg/l
6
Housing of the overflow valve
Fasten the test manometer (part no. 4.742-025) to
< 85 mg/l **
the high-pressure connection.
< 9 °dH **
Connect the high-pressure hose with the servo
< 0,5 mg/l
press hand spray gun to the test manometer.
Rotate the servo press to the "MIN" position, open
< 0,05 mg/l
the hand spray gun and let the device run.
< 0,02 mg/l
Rotate the spindle of the pressure/quantity regula-
tion to the stop.
Loosen the locknut for high pressure.
Turn the adjustment screw high pressure so that
the opening pressure of the overflow valve plus 1.5
MPa is reached on the test manometer.
Note: If this screw is turned clockwise, the pressure is
increased; and if it is turned counter-clockwise, the
pressure is decreased.
Secure the adjustment screw for high pressure with
the locknut.
Check working pressure and delivery rate.
Seal the adjustment screw for high pressure and
the lock nut with locking paint.
Electrical connection
the overflow valve
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EN
EU Declaration of Conformity
We hereby declare that the machine described below
complies with the relevant basic safety and health re-
quirements of the EU Directives, both in its basic design
and construction as well as in the version put into circu-
lation by us. This declaration shall cease to be valid if
the machine is modified without our prior approval.
Product:
High pressure cleaner
Type:
1.509-xxx
Type:
2.509-xxx
Relevant EU Directives
2006/42/EC (+2009/127/EC)
2009/125/EC
2011/65/EU
2014/30/EU
Applied harmonized standards
EN IEC 63000: 2018
EN 55014–1: 2017 + A11: 2020
EN 55014–2: 2015
EN 60335–1
EN 60335–2–79
EN 61000–3–2: 2014
EN 61000–3–12: 2011
EN 61000–6–2: 2005
EN 61000–6–4: 2007
EN 62233: 2008
HDC 20/8, HDC 20/8 H:
EN 61000–3–3: 2013
HDC 20/16, HDC 20/16 H:
EN 61000–3–11: 2000
Applied regulations
(EU) 2019/1781
5.957-926
The signatories act on behalf of and with of the authority
of the company management.
Chairman of the Board of Management
Director Regulatory Affairs & Certification
Documentation supervisor:
S. Reiser
Alfred Kärcher SE & Co. KG
Alfred-Kärcher-Straße 28-40
71364 Winnenden (Germany)
Tel.: +49 7195 14-0
Fax: +49 7195 14-2212
Winnenden, 2021/02/01
Warranty
The warranty terms published by our competent sales
company are applicable in each country. We will repair
potential failures of the appliance within the warranty
period free of charge, provided that such failure is
caused by faulty material or defects in fabrication.
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