EHRLE HSC1140-INOX Gas User manual

High Pressure Cleaner, Hot Water, Stationary HSC1140-INOX Gas
Installation and Operating Instructions
300631 • 1/2018 • H.S.
Authorised Specialists and Operators
HSC1140-INOX Gas / 52701-DE-B English

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Declaration of Conformity
Ehrle GmbH
Industriestraße 3
D – 89165 Dietenheim
HSC1140-INOX Gas
GAD 2009 / 142 / EC
MD 2006 / 42 / EC
LVD 2006 / 95 / EC
EMC 2004 / 108 / EC
CE-0085
Manufacturer:
Address:
Product:
Stationary, Hot Water, High Pressure Cleaner
The product given above is in conformity
with the European Directives:
This product is used like
follows marked:
Development
Christoph Nöldner Reiner Ehrle
Head of Development CEO
Illertissen, 01.02.2018

Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
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Table of content
Table of Content
1 User information
1.1 General...............................................................................................................................................5
1.2 Functional system concept................................................................................................................5
1.3 Terminology.......................................................................................................................................6
1.4 Meaning of the emphasis .................................................................................................................6
1.5 Meaning of the symbols ...................................................................................................................7
1.6 Target groups..................................................................................................................................... 9
1.7 Warranty and Liability.......................................................................................................................9
1.8 Environmental protection............................................................................................................... 10
2 Safety and security
2.1 General safety information ............................................................................................................11
2.2 Access for persons to the system ....................................................................................................11
2.3 Safety instructions for cleaning operation for system operators and operating personnel ...... 12
2.4 Safety instructions for gas-fired systems........................................................................................ 13
2.4.1 General information about the gas burner type ..........................................................................13
2.4.2 Note on combustion air ..................................................................................................................14
2.4.3 Behaviour in case of gas odour ......................................................................................................14
2.4.4 Behaviour with exhaust gas odour ................................................................................................14
2.4.5 Gas supply regulations, guidelines and rules ................................................................................14
2.5 Accident prevention regulations....................................................................................................15
2.6 Lifting and moving loads ................................................................................................................15
2.7 Periodic inspections.........................................................................................................................15
2.8 Guidelines for liquid sprayers .........................................................................................................16
2.9 Federal Immission Control Act........................................................................................................ 16
2.10 Safety regulations Electrical connection........................................................................................16
2.11 Design changes to the system ........................................................................................................16
2.12 Safety devices .................................................................................................................................. 16
3 Product description
3.1 System views ....................................................................................................................................18
3.2 Serial number .................................................................................................................................. 20
3.3 Technical data..................................................................................................................................21
3.3.1 Technical data of the system........................................................................................................... 21
3.3.2 Selection of spray nozzles...............................................................................................................23
4 Installation
4.1 Selection of the operating location ...............................................................................................25
4.2 Operating location inside buildings for type B23 ......................................................................... 27
4.3 Installation material ........................................................................................................................28
4.4 Installation of flue gas pipes for gas-fired..................................................................................... 30
4.5 Installation of gas connection ........................................................................................................31
4.6 Installation of the electrical connection ........................................................................................32
4.7 Establishing the water connection ................................................................................................33
4.8 Assembly of the condensation water drain hose ..........................................................................34
4.9 Assembly of washing station equipment....................................................................................... 34
4.10 Set up internal cleaning detergent container ...............................................................................35

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Table of content
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
5 Commissioning
5.1 Activities prior to initial commissioning ........................................................................................37
5.2 First switching-on after installation ...............................................................................................38
5.3 Burner setting values for gas-fired systems ...................................................................................40
6 Operation
6.1 System indicator and control elements.......................................................................................... 42
6.1.1 Control elements on the cabinet door front .................................................................................42
6.1.2 Control elements of the trigger gun.............................................................................................. 43
6.1.3 Indicator and control elements in the cabinet ..............................................................................44
6.2 Measures for system operators before operation......................................................................... 45
6.3 Notes on operation for specialist and operating personnel......................................................... 46
6.3.1 EMERGENCY STOP - switch-off in case of danger .........................................................................47
6.3.2 System setting and operation for skilled personnel .....................................................................48
6.3.3 System operation for operating personnel ...................................................................................50
6.4 Use of detergents (chemistry)......................................................................................................... 52
6.4.1 Adjust the amount of detergent to be added ..............................................................................53
6.4.2 Add detergent .................................................................................................................................53
7 Decommissioning
7.1 Temporary decommissioning by operating personnel..................................................................54
7.2 Temporary decommissioning by qualified personnel ...................................................................54
8 Maintenance
8.1 General Information ....................................................................................................................... 56
8.2 EHRLE Maintenance and Inspection Contract ............................................................................... 56
8.3 Maintenance work ..........................................................................................................................56
8.3.1 Antifreeze .......................................................................................................................................59
8.3.1.1 Drain water from high pressure cleaner........................................................................................59
8.3.1.2 Rinse high pressure cleaner with antifreeze agent....................................................................... 59
8.3.2 Cleaning the filter in the water inlet .............................................................................................60
8.3.3 Oil change........................................................................................................................................60
8.3.4 Decalcification of the high pressure cleaner .................................................................................60
8.3.5 Checking the high pressure hoses .................................................................................................61
9 Troubleshooting
9.1 Troubleshooting table.....................................................................................................................62
9.2 Replacement of components and parts ........................................................................................65
10 Spare parts
10.1 System cabinet (exterior view) .......................................................................................................67
10.2 System cabinet (interior).................................................................................................................68
10.3 Components on the chassis middle section ................................................................................... 69
10.4 Gas burner with boiler system........................................................................................................70
10.4.1 System version with Weishaupt gas burner...................................................................................70
10.4.2 System version with Baltur gas burner ..........................................................................................72
10.5 Drive unit Motor and pump ...........................................................................................................74
10.6 Trigger gun with spray lance ..........................................................................................................76
11 Circuit diagram
11.1 HSC1140-INOX Gas ..........................................................................................................................78

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1 User information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
1 User information
1.1 General
General information
For a comprehensive advice and information on the High Pressure
Cleaner, Hot Water, Stationary, HSC1140-INOX Gas please contact the
EHRLE Customer Service.
With the purchase of a Stationary EHRLE High Pressure Cleaner you are the
owner of a quality product, which is characterised by:
●user-friendliness,
●reliability,
●environmental friendliness.
These installation and operating instructions are part of the stationary hot
water high pressure cleaner and must be kept at the operating site and
available at all times.
For the stationary hot water high pressure cleaner, the manual contains
information on
●installation
●adjustment of system and operating parameters
●operation
●maintenance
●repair.
1.2 Functional system concept
The stationary hot water high pressure cleaners are designed for two
separate operating levels with different access rights:
●Level 1 for system operators with access to
○controls and indicator elements inside the cabinet via the lockable
door
○three main switches at the cabinet door front.
The control elements in the cabinet are used to set operating
parameters such as
○operating pressure
○water temperature
○detergent quantity.
●Level 2 for operating personnel with exclusive access to the three main
switches on the cabinet door front. On the cabinet door front, the three
main switches can be switched on/off:
○system operation
○hot water mode
○admixture of detergents.

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1 User information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
1.3 Terminology
The terminology „High Pressure Cleaner, Hot Water, Stationary,
HSC1140-INOX Gas“ is replaced by the short general term „system“ or
„high pressure cleaner“ in the manual.
If a clear reference to a subject is required in the description parts, the
terminology „High Pressure Cleaner, Hot Water, Stationary,
HSC1140-INOX Gas“ is used.
For the terminology „Installation and Operating Instructions“, the short
general term „Manual“ is used in the description sections wherever
possible.
1.4 Meaning of the emphasis
The emphasis used in this manual have the following meanings:
WARNING
Warning precedes operating procedures, instructions, etc., which, if not
strictly observed, could result in personal injury or loss of life. Warning
precedes also, when device misuse could result in personal injury or loss of
life.
CAUTION
Caution precedes operating procedures, instructions, etc., which, if not
strictly observed, could result in damage to the high pressure cleaner.
Caution precedes also, when device misuse could result in damage to the
high pressure cleaner.
This symbol indicates additional information.

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1 User information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
1.5 Meaning of the symbols
Symbol Meaning
WARNING
Follow instructions!
Non-observance or neglecting of prescribed in-
structions, incorrect operation or misuse of the
system may endanger life and limb of persons.
WARNING
Danger of explosion due to escaping gas.
An ignition source can cause a gas-air mixture
or solvent vapours to explode and cause fatal
injury to persons.
Improperly carried out work on the burner can
lead to gas leakage and explosion. Do not add
solvents to the high pressure jet. Observe all
safety instructions and work instructions.
WARNING
Danger of death due to electric shock.
Switch off the high pressure cleaner and dis-
connect it from the power supply before star-
ting installation, maintenance and repair work.
Protect the system against unintentional restar-
ting.
Touching live parts can lead to life-threatening
injuries.
WARNING
Danger of burns.
During operation, the cleaning objects, the hot
water emerging from the trigger gun, surfaces
of system components, assemblies or parts can
become hot. Touching hot surfaces or hot water
can cause burns or scalding on the skin surface.
Make sure that the hot surfaces and the water
from the trigger gun have cooled down before
starting maintenance and repair work.
WARNING
Toxic substances.
Inhalation, contact and/or ingestion of toxic
substances through the food chain may endan-
ger the health of persons and can lead to death.
Observe the relevant safety regulations when
handling toxic substances.

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1 User information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
Symbol Meaning
WARNING
Danger with heavy loads.
A person is not allowed to lift and move loads
more than 23 kg. Otherwise the health of per-
sons may be endangered (e.g. overload of the
spinal column, injuries from falling loads).
For loads of more than 23 kg, use suitable lif-
ting equipment (e.g. forklift truck, lift truck).
CAUTION
Observe instructions for installation, system
adjustment, operation, maintenance and repair.
Non-observance or neglecting prescribed
instructions, incorrect operation or misuse of
the system may result in damage to system
parts, assemblies or components.
General Information
General additional information.
Information on recycling
General information on recycling.
Information on disposal
General information on the proper and en-
vironmentally sound disposal of materials and
consumables.
Information on hearing protection
General information on hearing protection.
Calls for a direct action.
Result after an action.
•Enumeration

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Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
1.6 Target groups
This installation and operating manual contains information and
instructions for:
●Authorised, instructed and trained operating personnel for carrying out
cleaning work.
●Authorized, qualified and trained personnel for the installation,
operation, maintenance, repair and adjustment of the system.
1.7 Warranty and Liability
The EHRLE High Pressure Cleaner, Hot Water, Stationary, HSC1140-INOX
Gas may only be used for its intended purpose.
Intended use includes:
●Operation only by authorized, instructed and trained operating
personnel.
●Installation, operation, maintenance, repair and adjustment of the
system only by authorized, trained and qualified personnel. For
installation, maintenance, repair and adjustment of the system, the
relevant specialist personnel can be consulted and commissioned by the
EHRLE Customer Service.
●The information and instructions contained in this installation and
operating manual must be observed.
●If the safety and protective devices are faulty, the system must not be
put into operation.
●The system may only be operated with fully functional safety and
protective devices. In the event of functional failures during operation,
the system must be taken out of operation immediately.
●Faulty, insufficient or defective systems must not be put into operation.
Before commissioning, carry out a visual inspection for faulty, defective
or defective
○System parts, assemblies or components
○Electrical cables
○High pressure hoses.
●The system must be switched off immediately and taken out of
operation if defects, faults or deficiencies occur on
○System parts, assemblies or components
○Electrical cables
○High pressure hoses.
●No constructive changes may be made to the system.
●The system may only be operated in the configuration certified by
the manufacturer. Operation with subsequently installed modules,
components or additional devices is not permitted and may endanger
life and limb of persons or lead to damage to the system.
●Only original parts from the manufacturer or consumables approved by
the manufacturer may be used for maintenance and repair work.

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1 User information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
●Only fuels approved by the manufacturer and operating materials
(engine oil, cleaning agents, etc.) may be used to operate the system.
Any warranty and liability claims for personal injury and damage to the
system are void if the system is not used for its intended purpose.
1.8 Environmental protection
Note on recycling
The packaging materials are recyclable. Please do not throw the
packaging into the household waste, but recycle it.
Note on disposal
Old appliances contain valuable recyclable materials which should be
recycled. Batteries, oil and similar materials must not be discharged into
the environment. For this reason, please dispose of old appliances using
suitable collection systems.
Dispose of used materials in an appropriate and environmentally friendly
manner. Observe the local regulations.
According to environmental regulations, waste water containing mineral
oil, fuels for hot water heating or lubricants such as oils and greases must
not enter the soil, water or sewerage system.
Do not allow engine oil, fuel oil or petrol to escape into the environment.
Protect the soil and dispose of used oil in an environmentally friendly
manner.
Engine cleaning or underbody washing of all types of vehicles may only be
carried out at washing stations equipped with oil separators in accordance
with environmental regulations (environmental protection).

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2 Safety
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
2 Safety and security
2.1 General safety information
Observe the respective national regulations of the legislator for liquid
sprayers.
Observe the relevant national regulations of the legislator on accident
prevention. Liquid sprayers must be inspected regularly and the result of
the inspection must be recorded in writing.
The heating equipment of the system is a combustion system. Firing
systems must be regularly inspected in accordance with the respective
national regulations of the legislator.
If the system is operated in rooms, the exhaust gases must be safely
discharged (flue gas pipe without draught interrupter). Furthermore, a
sufficient supply of fresh air must be ensured.
Observe the safety instructions provided with the cleaning agents used
(usually on the packaging label).
Keep cleaning agents out of the reach of unauthorized persons. Risk of
poisoning or caustic burns from cleaning agents! Observe the instructions
on the cleaning agents.
Perform prescribed adjustment, maintenance and inspection work in due
time (see Section 8, Maintenance).
Safety-relevant defects must be rectified immediately. Keep all signs on the
system legible.
2.2 Access for persons to the system
The cabinet door for access to the interior of the cabinet must be kept
locked. Only authorised persons may have access to the inside of the
cabinet.
Ensure that access to the system is only possible for the following persons:
●Operating personnel authorised, instructed and trained by the system
operator and specially trained for general cleaning tasks. Operation is
limited to the three main switches on the front of the cabinet door.
●Authorised, qualified and specially trained personnel for the
installation, operation, maintenance, repair and adjustment of the
system. Access to the key for the cabinet door in order to be able to
carry out appropriate measures inside the cabinet.
Keep the key for the cabinet access door in a place accessible only to
authorised personnel.

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Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
2.3 Safety instructions for cleaning operation for
system operators and operating personnel
During cleaning work, the personnel at the workplace must wear the
necessary protective clothing. This includes waterproof protective suits,
rubber boots, protective goggles, headgear, ear protection if necessary, etc.
No cleaning work may be carried out in the presence of persons without
sufficient protective clothing.
Before switching on, carry out a visual inspection of the system parts from
the outside for damage (high pressure hose, electrical or mechanical parts).
Systems with damaged system parts, assemblies or components must not
be put into operation.
The water jet leaving the trigger gun must not be directed at
●persons
●animals
●live electrical installations (building mains connections, sockets,
electrical wiring, etc.)
●live electrical installations, machines, devices, assemblies or components
●system, machinery or equipment in operation.
Under the influence of the high pressure jet, parts can be separated from
the cleaning object and thrown away. Persons can be injured as a result.
Never aim the high pressure jet at fragile or loose objects.
When cleaning tyres and their valves, keep a minimum distance of 30 cm
from the high pressure nozzle. Otherwise damage may occur.
Before cleaning the High Pressure Cleaner, Hot Water, Stationary,
HSC1140-INOX Gas itself, take the system out of operation and disconnect
it from the electrical mains connection. Secure the system against
unintentional or unauthorised restarting (e.g. lock main switch, warning
sign indicating work on the system, etc.).
Never operate the system unattended.
During hot water operation, parts of the cabinet interior, water-carrying
parts (e.g. non-insulated pipes, metal parts of the trigger gun and jet pipe)
and cleaning objects become hot and can cause burns if touched. Keep
the cabinet door closed during operation. Before touching heated system
parts, water-carrying parts or cleaning objects, wait until they have cooled
down.
Do not close or block the exhaust opening of gas-fired high pressure
cleaners, do not bend over it or reach into it during operation. The
escaping exhaust gases are very hot and must not be inhaled. The exhaust
gases and system components become very hot and can lead to severe
burns.
Do not inhale the exhaust gases. Inhalation of exhaust fumes may
endanger life and limb of persons.
For high pressure cleaners operated in rooms, a safe discharge of the flue
gases must be ensured. It must also be ensured that sufficient ventilation is
available (combustion air).
Asbestos-containing and other materials containing substances hazardous
to health must not be sprayed off.

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Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
Information on hearing protection
If the sound levels exceed the permissible values, the personnel and
persons in the area of exposure must wear hearing protection.
The sound level for EHRLE high pressure cleaners under maximum load is
82 dB (A). A high sound level can cause hearing loss over a longer period
of time. If the noise produced by the application of the emerging high
pressure jet to noise-enhancing objects exceeds the permissible values,
the operating personnel and any persons affected must wear hearing
protection.
Do not operate the system if electrical lines or other safety-relevant parts
(pressure relief valve, high pressure hose, trigger gun, etc.) are defective.
2.4 Safety instructions for gas-fired systems
2.4.1 General information about the gas burner type
The High Pressure Cleaner, Hot Water, Stationary, HSC1140-INOX Gas is
equipped with a gas burner of the company
●Weishaupt, gas burner type WG5
or
●Baltur, gas burner type BPM90
The technical manual „Installation and Operating Instructions“ of
Weishaupt or Baltur is included in the scope of delivery of every gas-
heated stationary hot water high pressure cleaner and must be observed.
The gas-fired high pressure cleaners are subject to certification by the
DVGW (Deutscher Verein des Gas- und Wasserfaches).
The CE number is: CE-0085AR0179
SVGW Certificate No. 09-034-8 SVGW/VKF

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Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
2.4.2 Note on combustion air
The combustion air must be free of aggressive substances (e.g. halogens).
If the combustion air in the installation room is contaminated, increased
cleaning and maintenance is required. In this case, operate the system
independently of the room air.
If the system is operated in a closed room, the installation room must
comply with local regulations.
Improper use may cause:
●endanger life and limb of the user or third parties,
●affect the installation or other tangible assets.
2.4.3 Behaviour in case of gas odour
With gas odour:
Immediately refrain from any operation or switching on/off of
infrastructure equipment (supply voltage switches or circuit breakers for
internal building infrastructure, light switches, etc.).
Immediately refrain from operating or switching on/off any electrical
device (e.g. work lamps for illuminating a work area for maintenance
and repair, fan heaters, etc.) or electronic device (e.g. mobile
telephones, laptops, etc.).
Do not remove any plugged in mains plugs from the sockets.
Open windows and doors to ensure sufficient air exchange.
Close the gas ball valve.
Warn house inhabitants (do not activate doorbell).
Leave building.
Notify from outside the building, heating company or gas supplier.
2.4.4 Behaviour with exhaust gas odour
With exhaust odour:
Switch off the system and take it out of operation.
Open windows and doors to ensure sufficient air exchange.
Notify customer service.
2.4.5 Gas supply regulations, guidelines and rules
Before installing the gas-fired system, coordination with the gas supply
company and the district chimney sweep master is required.
During installation, the regulations of building law, trade law and
immission control must be observed.
For the gas supply observe:
●The gas-fired system may only be installed by a specialist company in
accordance with the relevant national regulations.
●Observe local regulations and guidelines during installation (e.g.
DVGW-TRGI, Worksheet G 600; TRF Volume 1 and Volume 2).

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2 Safety
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
●The installation of the gas pipes, as well as the gas-side connection of
the system, may only be carried out by a specialist company approved in
the gas and water trade.
●Only the gas supplier or a contracted installer may carry out adjustment,
maintenance or repair work on gas installations in buildings and
premises.
●Line systems must be subjected to a load and leak test or a serviceability
test in accordance with the operating pressure (e.g. DVGW-TRGI,
Worksheet G 600).
●Depending on the type and quality of the gas, gas supply must
be carried out in such a way that no liquid substances are formed
(e.g. condensate). For liquid gas, observe evaporation pressure and
evaporation temperature.
●When planning a chimney, the locally valid guidelines must be observed
●Only use tested sealing materials and observe the processing
instructions.
●When switching to a different type of gas, reset the condensing boiler
system. The changeover between liquid and natural gas requires a
conversion.
●Carry out leak test after every maintenance and troubleshooting.
2.5 Accident prevention regulations
Observe the applicable national regulations of the legislator on accident
prevention.
2.6 Lifting and moving loads
The High Pressure Cleaner, Hot Water, Stationary, HSC1140-INOX Gas
weighs 300 kg (with packaging 317 kg).
Lifting and moving loads is permitted for one person up to 23 kg. If the
load exceeds 23 kg (e.g. system units, assemblies) use suitable lifting
equipment (e.g. forklift, lift trucks).
Observe the international standard „ISO 11228-1 Ergonomie - Manuelles
Handhaben von Lasten - Teil 1 Heben und Tragen 05/2003“.
2.7 Periodic inspections
The periodic inspections are listed in Section 8 (Maintenance).

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High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
2.8 Guidelines for liquid sprayers
High pressure cleaners must be inspected by an expert in accordance
with the „Guidelines for liquid sprayers“, if necessary or at least every 12
months. The result of the test must be recorded in writing.
In the appendix of this manual there is a test sheet (proof of customer
service) to record the tests carried out.
EHRLE service technicians are experts and can be consulted and
commissioned by EHRLE service for this prescribed inspection.
2.9 Federal Immission Control Act
The heating device is a combustion system which, according to the first
regulation for the implementation of the Federal Immission Control Act,
must be checked once a year by your responsible district chimney sweep
for compliance with the ejection limit values.
The first check must be carried out within the first four weeks after
commissioning. The operator of the high pressure cleaner must initiate the
measurement.
2.10 Safety regulations Electrical connection
When working on electrically live parts:
●Observe accident prevention regulations DGUV V3 (previously BGV A3)
and local regulations,
●Use tools according to DIN EN 60900.
2.11 Design changes to the system
Design changes to the high pressure cleaner are not permitted.
When operating a system which has been modified or changed in design,
the system will not be used for its intended purpose. If the system is not
used for its intended purpose, no liability or warranty will be accepted (see
Section 1.7, Warranty and Liability).
2.12 Safety devices
Safety devices serve to protect the user and must not be suspended or
circumvented in their function.
The high pressure cleaner has the following safety devices listed below:
●Various pressure switches:
System functions are switched on or off (safety functions) based on type
of construction and intended use.
●Low-water cut-off:
The system does not switch on, respectively in case of operation off, if
the water level in the float container is insufficient.
●Unloader valve and non-return valve:
The first serves to adjust the operating pressure and the second valve
keeps the pump head depressurised when the trigger gun is deactivated.

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High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
●Safety valve:
Opens when a preset pressure is exceeded and diverts the water stream.
●Thermostat and overload protection switch:
Releases when the pump current load is too high, the system is switched
off.
●TSS system with pump-off delay:
After deactivating the trigger gun, the pump continues operation for
approx. 30 s in the pressureless bypass mode (avoidance of too high
pressure build-up in the pump); after 30 s the high pressure cleaner
automatically switches into the stand-by mode.
●Total Switch-off:
Automatically switches the high pressure cleaner off in the event of
prolonged interruption of operation or unused trigger gun for more
than 20 minutes.
●Leakage recognition:
Switches off the high pressure cleaner automatically after detection of a
leakage
○at the high pressure hose
○with the trigger gun or
○in the system.
●Optical flame monitoring:
Switches off the heating after the flame in the combustion chamber has
extinguished.
●Mechanical arrest for trigger gun of the trigger gun:
Prevents unintentional or unconscious activating the trigger gun.

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3 Product information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
3 Product description
3.1 System views
The two following figures show a general example for the High Pressure
Cleaner, Hot Water, Stationary, HSC1140-INOX Gas.
1
3
4
5
6
7
8
2
1 Exhaust pipe feed-through 5 Water connection
2 Shut-off fitting Gas supply 6 High pressure pipe feed-through
at gas burner 7 Feed-through electrical connection
3 Cover Maintenance opening 8 Control panel, cabinet door front
4 Door latch with lock
Fig. 3 - 1 High Pressure Cleaner, Hot Water, Stationary, HSC1140-INOX Gas, total view

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3 Product information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
1
7
9
6
23 4
5
8
1 Gas burner 6 Pump unit with driving motor
2 Boiler 7 Filter for suction hose detergents
3 Electrical terminal strip and 8 Panel with control elements (temperature,
Electronics with protective cover Manual reset, chemical control valve)
4 Float container 9 Chemical pump
5 Protective cover (terminal contacts)
Fig. 3 - 2 High Pressure Cleaner, Hot Water, Stationary, HSC1140-INOX Gas, Cabinet interior
(door opened)

300631 • 1/2018 • H.S.
20 of 82
3 Product information
Installation and Operating Instructions
High Pressure Cleaner, Hot Water, Stationary
HSC1140-INOX Gas
3.2 Serial number
The serial number on the nameplate uniquely identifies the product. It is
required for Ehrle customer service.
Fig. 3 - 3 Nameplate for HSC1140-INOX Gas
Ser. Nr.