Dr. Escherich ESUC 41 User manual

Operating Instructions (101057)
ESUC 41/61/81
Translation of the Original Instructions (EN)
Version: 2 • 17/06/2019
Dr. Escherich GmbH
Höglwörther Straße 1
81369 München · Germany
Phone [phone]
E-mail [email protected]
www.dr-escherich.com
Subject to technical changes

Table of Contents
ii ESUC 41/61/81
Table of Contents
1 User Instructions .......................................................................................................................4
1.1 About These Operating Instructions ........................................................................................ 4
1.2 Applicable Documents.............................................................................................................. 4
1.3 Typographical Conventions ...................................................................................................... 4
1.4 Abbreviations ........................................................................................................................... 5
1.5 Explanation of Warning Messages ........................................................................................... 5
1.5.1 Description of Hazard Levels ......................................................................................... 5
1.5.2 Structure of Warning Messages ....................................................................................6
1.5.3 List of Safety Symbols Used........................................................................................... 6
2 General Safety Instructions........................................................................................................8
2.1 Operator's Obligations ............................................................................................................. 8
2.2 Qualification of the Personnel.................................................................................................. 8
2.3 Special Dangers ........................................................................................................................ 9
2.3.1 Dangers from Defective Parts........................................................................................9
2.3.2 Dangers Through the Unauthorized Modification and the Use of Non-OEM Parts ......9
2.3.3 Risk of Electric Shock When Touching Conductive Components...................................9
2.3.4 Dangers from the Pneumatic Equipment ....................................................................10
2.3.5 Risk of Injury Due to Rotating Components of the Built-In Fan...................................10
2.3.6 Danger for Persons with Pacemakers..........................................................................10
2.3.7 Respiratory Tract and Eye Irritation When Handling Filter Dust .................................10
2.3.8 Equipment Damage Due to an Electric Arc..................................................................10
2.4 Fire Prevention....................................................................................................................... 10
2.5 Safety Measures in ESD-Protected Areas............................................................................... 11
3 Product Description ................................................................................................................. 12
3.1 Intended Applications ............................................................................................................ 12
3.2 Improper Use ......................................................................................................................... 12
3.3 Ambient and Operating Conditions........................................................................................ 12
3.4 General View .......................................................................................................................... 12
3.5 Function Principle................................................................................................................... 13
3.5.1 High Voltage Supply.....................................................................................................13
3.5.2 Option for Connecting Contact Cleaning Devices Model ROTORCLEAN .....................13
3.5.3 Compressed Air Preparation and Control....................................................................13
3.5.4 Output Air Suction and Filtering..................................................................................14
3.5.5 Special Version for ESD Applications ...........................................................................15
4 Installation ..............................................................................................................................16
4.1 Set-Up..................................................................................................................................... 16
4.1.1 Version with Levelling Feet..........................................................................................16
4.1.2 Version with Rollers.....................................................................................................17
4.2 Compressed Air Connection................................................................................................... 17

Table of Contents
ESUC 41/61/81 iii
4.3 Suction Connection ................................................................................................................ 18
4.4 HV Outputs............................................................................................................................. 19
4.5 Electrical Installation .............................................................................................................. 20
4.5.1 Connection ROTORCLEAN ...........................................................................................21
4.6 Controls .................................................................................................................................. 21
4.7 Differential Pressure Monitor Settings................................................................................... 22
5 Start-Up...................................................................................................................................23
6 Troubleshooting ......................................................................................................................25
6.1 Error Display........................................................................................................................... 25
6.2 Troubleshooting Overall Function.......................................................................................... 25
6.3 Troubleshooting the Ionisation System.................................................................................. 25
6.3.1 Troubleshooting HV Module .......................................................................................26
6.3.2 Troubleshooting Ionisers .............................................................................................26
6.4 Troubleshooting the Compressed Air Supply......................................................................... 27
6.5 Troubleshooting the Suction System ..................................................................................... 27
6.6 Troubleshooting the Filter...................................................................................................... 28
6.7 Troubleshooting Brushes (Only for ROTORCLEAN Option) .................................................... 28
7 Maintenance ...........................................................................................................................29
7.1 Maintenance Plan .................................................................................................................. 29
7.2 Removal of Filters................................................................................................................... 30
7.3 Installation of Filters............................................................................................................... 30
7.4 Maintenance of the Filter Control Valve ................................................................................ 31
7.4.1 Condensation Drain.....................................................................................................31
7.4.2 Replacing the Filter Cartridge ......................................................................................31
7.4.3 Cleaning ....................................................................................................................... 32
8 Disposal................................................................................................................................... 33
9 Technical Data .........................................................................................................................34
9.1 Mechanical ............................................................................................................................. 34
9.2 Electrical Supply Data............................................................................................................. 34
9.3 Pneumatic Supply Data .......................................................................................................... 35
9.4 Output Air Suction and Filtering............................................................................................. 35
10 Spare Parts and Accessories..................................................................................................... 37
11 Drawings .................................................................................................................................38
12 EC Declaration of Conformity................................................................................................... 40

1 | User Instructions
4 ESUC 41/61/81
1 User Instructions
1.1 About These Operating Instructions
These operating instructions apply to:
▪ ESUC 41
▪ ESUC 61
▪ ESUC 81
These operating instructions are an integral part of the product and must be available
at any time. Therefore:
uKeep these operating instructions at the product.
uPass these operating instructions on to the next owner if and when you come to
sell the product.
Configuration information
These operating instructions describe all configuration variants of the product. Some
functions and components are only available for certain configurations.
Contact your sales partner with any questions you may have regarding the scope of
features for any particular model.
1.2 Applicable Documents
▪ ESUC circuit diagram
▪ depending on the configuration, documentation of connected components
1.3 Typographical Conventions
One-step instructions
Instructions consisting of only one action step or instructions in which the order of ac-
tion steps is not important are structured as followed:
üPreconditions (optional).
uStep1 of 1.
ðResult of the action step (optional).
ðResult of the action (optional).
Instructions with several steps
Instructions consisting of action steps in a defined order are structured as followed:
üPreconditions (optional).
1. Step1.
ðResult of the action step (optional).
2. Step2.
ðResult of the action step (optional).
ðResult of the action (optional).

User Instructions | 1
ESUC 41/61/81 5
1.4 Abbreviations
In these operating instructions the following abbreviations are used:
▪ AC = Alternating Current
▪ DC = Direct Current
▪ ESD = Electrostatic Discharge
▪ HV = High Voltage
▪ RC = ROTORCLEAN
▪ RCC = ROTORCLEAN COMPACT
1.5 Explanation of Warning Messages
1.5.1 Description of Hazard Levels
These operating instructions contain notes which you must observe for your personal
safety as well as for avoidance of material damage.
DANGER
An immediate hazard with high risk.
DANGER indicates an imminently hazardous situation which, if not avoided, will result
in death or serious injury.
WARNING
A possible hazard with moderate risk.
WARNING indicates a potentially hazardous situation which, if not avoided, could res-
ult in death or serious injury.
CAUTION
A minor hazard with medium risk.
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
Indicates that material damage may result if the appropriate precautions are not
taken.
TIP
Indicates important information about the product or useful tips.

1 | User Instructions
6 ESUC 41/61/81
1.5.2 Structure of Warning Messages
Section safety messages
Section safety messages apply to entire chapters or sections of these operating instruc-
tions. Section safety messages are structured as followed:
WARNING
Type and source of danger.
Possible consequences when danger warning is not heeded.
wMeasures to protect against danger.
Embedded safety messages
Embedded safety messages are integrated into the instructions and warn of a danger-
ous step. Embedded safety messages are structured as followed:
1. WARNING!Type and source of danger. Possible consequences when danger
warning is not heeded. Measures to protect against danger.
Step1.
2. Step2.
1.5.3 List of Safety Symbols Used
In these operating instructions the following safety symbols are used:
Safety sym-
bol Meaning
Dangerous area
Dangerous electrical voltage
Danger of crushing
Risk of injury due to sharp parts
Coaxial plugs under high voltage

User Instructions | 1
ESUC 41/61/81 7
Safety sym-
bol Meaning
Danger from loose compressed air lines and connectors
ESD-protected areas
Qualified electrician
Mandatory action: Wear eye protection
Mandatory action: Use breathing equipment
Table1: List of safety symbols used

2 | General Safety Instructions
8 ESUC 41/61/81
2 General Safety Instructions
2.1 Operator's Obligations
Safety in operational practice can only be assured when all necessary measures are
taken. It is the product operator's responsibility to plan these measures and check
their implementation. In case of wrong operation or misuse, danger exists for life and
limb of the user and danger for the product and other equipment.
In particular the operator must assure that:
▪ the product is used only according to these instructions
▪ the product is operated only in a faultless and fully functional condition
▪ no safety and warning lables are removed and they remain readable
▪ all persons who need to work with or at the product have read and understood
these operating instructions (incl. applicable documents) and that they can refer to
the operating instructions at all times
2.2 Qualification of the Personnel
Task/person Instructed persons
Persons with relev-
ant technical train-
ing
Qualified electri-
cians
Transport X
Assembly X
Electrical installation X
Pneumatic installa-
tion X
Mechanical and
pneumatic start-up X
Electrical start-up X
Mechanical mainten-
ance, troubleshoot-
ing and repair
X
Electrical mainten-
ance, troubleshoot-
ing and repair
X
Cleaning X
Safety check X
Disconnecting the
electrical connection
cables
X
Disconnecting the
pneumatic supply
lines
X
Dismantling X

General Safety Instructions | 2
ESUC 41/61/81 9
Task/person Instructed persons
Persons with relev-
ant technical train-
ing
Qualified electri-
cians
Disposal X
Table2: Qualification of the personnel
2.3 Special Dangers
The product is designed safely and corresponds to the state of the art. There is no
danger under normal use. But: During installation and maintenance work there are
dangers, which can only be avoided through the correct handling.
2.3.1 Dangers from Defective Parts
Defective cables and plugs can lead to injury or death by electrical current.
uIn case of visible damage or possible electrical faults, shut down the product imme-
diately.
Defective compressed air lines and connectors can cause severe injury.
uIn case of damage to the compressed air lines and connectors, switch off the com-
pressed air supply immediately and have repairs carried out.
2.3.2 Dangers Through the Unauthorized Modification and the Use of Non-OEM
Parts
The use of unsuitable accessories or unauthorized modifications to the product can
lead to injury.
uDo not make any changes to the product.
uDo not repair the product yourself.
uOnly use accessories that have been approved for the combination with the
product by the manufacturer.
2.3.3 Risk of Electric Shock When Touching Conductive Components
When connected to the mains and inside of the control cabinet there is a danger of
electric shock. Touching conductive components can cause death or serious injury.
uOnly a qualified electrician may open the control cabinet.
uInstallation and maintenance only in de-energised state.
uBefore starting any maintenance and repair work, turn off the main switch and se-
cure it against unintentional recontact.
In ESUC, condensers are located which store the electrical charges. For one minute
after shutting down the supply, dangerous voltage remains.
Before opening the control cabinet:
1. Switch off the main switch.
2. Pull out the mains plug or disconnect the power supply cable.
3. Wait 1 minute before starting work.

2 | General Safety Instructions
10 ESUC 41/61/81
2.3.4 Dangers from the Pneumatic Equipment
Loose compressed air lines and connectors can cause severe injury.
uShut off the compressed air supply during installation via the factory main valve.
uBefore starting any maintenance work, disconnect the product from the com-
pressed air supply.
2.3.5 Risk of Injury Due to Rotating Components of the Built-In Fan
The fan room is protected with a grille. Should the protective grille be removed during
operation, there is risk of injury due to rotating components.
uDo not remove the protective grille of the fan room.
uRemove the filter boxes only when the entire system is switched off.
2.3.6 Danger for Persons with Pacemakers
High voltage applied to ioniser generates an alternating electric field (frequency see
Technical Data of the ioniser). This can impair the function of pacemakers. A negative
influence on the proper functioning of pacemakers can lead to ventricular fibrillation
or heart arrest.
uPersons with heart pacemakers must keep a safety distance of 50–100cm (depend-
ing on the model, see the operating instructions for the ioniser) from:
▪ the ioniser discharge tips
▪ HV transformers of the ionisation power supplies if present
uThe operator must mark the danger zone around the ioniser with a warning sign.
2.3.7 Respiratory Tract and Eye Irritation When Handling Filter Dust
When handling the used filter dust could possibly be whirled up. Dust discharge can ir-
ritate the respiratory tract and eyes.
uWear breathing equipment and eye protection during filter replacement.
2.3.8 Equipment Damage Due to an Electric Arc
High voltage is applied to coaxial plugs of AC ionisers. When the HV supply is switched
on and coaxial plugs are being plugged in or out, an arc may occur and damage the
socket of the HV supply and the coaxial plug of the AC ioniser.
uPlug in and out coaxial plugs of the AC ionisers only when de-energised.
2.4 Fire Prevention
The product is designed only for suctioning and filtering of inert, non-explosive dusts,
which are non-flammable under normal conditions. The extraction of explosive and
flammable mixtures is prohibited.
The operator must check if the dusts are flammable and/or explosive before using the
product.
uGet the appropriate information about the safety characteristics for the dust
particles at hand.

General Safety Instructions | 2
ESUC 41/61/81 11
Sparks or hot, red-hot parts can ignite dust particles.
uDo not suction potential ignition sources, such as hot, red-hot, smouldering parts,
red-hot chips.
Even the filter materials may be flammable. Ignition of filter materials creates toxic
gases and vapours.
We recommend positioning a fire extinguisher in the immediate vicinity of the
product.
uInform yourself about appropriate fire-fighting measures.
In case of fire:
uSwitch off the product immediately.
uInterrupt the supply of compressed air.
2.5 Safety Measures in ESD-Protected Areas
Electrostatic discharge can cause defects in customer's electronic components en-
dangered by ESD.
uAssure personal earthing via wrist and shoe earthing.
uWear only clothes which are static dissipative and closed.

3 | Product Description
12 ESUC 41/61/81
3 Product Description
3.1 Intended Applications
The ESUC suction, filter and supply unit is designed for operating surface cleaning
devices by the Dr.Escherich GmbH.
ESUC provides a suction system with special filters and supplies the surface cleaning
devices with high voltage for the ionisers and compressed air if needed.
Only dry dusts can be extracted in the filters.
3.2 Improper Use
Explosive, combustible, harmful, toxic, biologically active or sticky dust and vapours
must not be suctioned off. See also }2.4Fire Prevention [p.10].
The product is not suitable for use in areas where danger of explosion exists (EX areas).
3.3 Ambient and Operating Conditions
Ambient temperature must not exceed +40 °C.
Permitted ambient humidity: up to 60 % RH, non-condensing.
The product is intended for use in normal air atmosphere.
The product must not come into contact with dampness, wetness, oil or aggressive
media.
3.4 General View
1
2
3
4
5
6
7
8
9
10
11
12
Fig.1: ESUC component overview
Item Name
1 Filter box
2 Fan box

Product Description | 3
ESUC 41/61/81 13
Item Name
3 Compressed air maintenance unit with filter control valve
4 Switch panel
5 Main switch
6 HV connectors
7 Control cabinet
8 Rollers
9 Suction port
10 Output air port (optional)
11 Power supply connection device plug (not for ROTORCLEAN option) and ex-
ternal connectors
12 Suction box
Table3: Description of the elements
3.5 Function Principle
The ESUC suction, filter and supply unit provides all necessary functions for the opera-
tion of surface cleaning devices by Dr.Escherich GmbH.
3.5.1 High Voltage Supply
Dr. Escherich cleaning devices are designed with ionisers to remove the electrostatic
surface charge. ESUC generates the high voltage needed for this process in the AC ion-
isers with a HV transformer.
The following options are possible:
▪ Integrated HV module
▪ External HV power supply connected to ESUC
▪ Integrated control module for connecting DC ionisers
3.5.2 Option for Connecting Contact Cleaning Devices Model ROTORCLEAN
▪ The RC option is used for operation of contact cleaning devices of the RO-
TORCLEAN type.
▪ The RCC option is used for operation of contact cleaning devices of the RO-
TORCLEAN COMPACT type.
The ROTORCLEAN option is designed for operation of max.2 ROTORCLEAN devices.
Regulation of the brush revs is possible.
ESUCs with the ROTORCLEAN option may also be used for non-contact cleaning
devices.
3.5.3 Compressed Air Preparation and Control
ESUC supplies the surface cleaning devices of Dr. Escherich GmbH with compressed air.
The integrated compressed air maintenance unit is fed by an external compressed air
system.

3 | Product Description
14 ESUC 41/61/81
The integrated compressed air maintenance unit is equipped with a 5µ filter which fil-
ters the solid particles. It is thereby assured that the integrated or connected compon-
ents are not damaged. If the compressed air quality at the input lies below this value it
is improved by the compressed air maintenance unit. If the compressed air at the input
is of a higher quality classification, the compressed air quality remains the same. The
integrated particle filter does not remove either oil or water.
The cleaning pressure and, if applicable, the pressure for the control air supply are set
by means of the regulator valves of the compressed air maintenance unit. By means of
the electric on-off valve of the compressed air maintenance unit the entire system is
switched on or off together.
The following options are possible:
▪ 1 regulator valve
▪ Several regulator valves
▪ Additional valves with switch-off delay
▪ Additional valves without switch-off delay
By means of additional valves, the compressed air can be pulsated and thus be
switched on only for the duration of the cleaning process. The duration of the com-
pressed air supply can be determined either via active on-and-off switching of the
valve or via active switching on with adjustable switch-off delay.
Compressed air control:
▪ Compressed air input pressure: The operational pressure is permanently mon-
itored.
▪ Operating air pressure: The working pressure of the cleaning device is monitored at
the regulator valve outlet during the cleaning process.
3.5.4 Output Air Suction and Filtering
The connected surface cleaning devices remove unwanted particles from the material
to be cleaned. To remove particles from the environment, they are transported via the
suction channels integrated in the cleaning system to the suction, filter and supply unit
ESUC. Suction is provided by a radial fan. By means of the suction, the contaminated
output air is transported via filters where the particles are deposited.
The variants differ in the suction power and the number of filters (see }9.4Output Air
Suction and Filtering [p.35]).
Two heights of filter boxes are available which can be chosen according to application
and can be combined with each other:
▪ The higher model for bag filters (M5–F7) or high compact filters (H12–H13)
▪ The lower model for compact filters (M5–F7)
This results in various installation heights for ESUC.
The following options are possible:
▪ 1 filter stage for compact filter
▪ 1 filter stage for bag filter
▪ 2 filter stages for bag and compact filters (for ESUC 61/81)
HEPA filters may also be used for special applications.

Product Description | 3
ESUC 41/61/81 15
Exhaust of the filtered output air is optionally achieved via:
▪ Ventilation slots in the base of ESUC by downward diffusion
▪ Output air port (}Fig.1, p.12)
3.5.5 Special Version for ESD Applications
If ESUC is designed as ESD version, it can also be used in ESD areas.
Products in ESD version are marked with the following inscription:
The housing of ESUC is constructed of special materials or with a surface coating con-
forming to DINEN61340-5-1:2017-07, so that ESD relevant surface charges or undesir-
able discharges cannot occur.
As opposed to the non-ESD version, the ESD version of ESUC incorporates:
▪ Housing paint:
– ESD powder paint
– Surface resistance conforming to DINEN61340-5-1:2017-07
– Leakage resistance (resistance to earthing point or PE conductor) conforming to
DINEN61340-5-1:2017-07
▪ ESD compliant levelling feet or rollers
▪ Supply for ESD ionisers:
– Integrated HV module
– External HV power supply in "Balanced" version to minimise the residual charge
– Integrated control module for connecting the ESD ionisers PRECISION
▪ If required, ESD compatible version of the compressed air hose (provided by the
customer)
(All conversions to this design can be realised on customers’ request and supplied as a
special version at additional cost.)
NOTICE
Equipment damage due to electrostatic discharge
Electrostatic discharge can cause defects in customer's electronic components en-
dangered by ESD.
wAssure personal earthing via wrist and shoe earthing.
wWear only clothes which are static dissipative and closed.

4 | Installation
16 ESUC 41/61/81
4 Installation
uBefore installing the product, inspect it for damage in transit.
WARNING
Risk of injury in case of insufficiently qualified staff
Work performed on the device by unqualified staff may result in personal injury and
equipment damage.
wSet-up, assembly and installation of the device may only be performed by persons
qualified for this while observing the safety instructions.
WARNING
Risk of injury due to electric current
Conductive components can cause serious injury or death.
wDe-energise all components before you begin working.
wSecure the system against unwanted start-up.
WARNING
Danger of electric shock from residual voltage
For one minute after shutting down the supply, dangerous voltage remains. Touching
conductive components can cause death or serious injury.
1. Switch off the main switch.
2. Pull out the mains plug or disconnect the power supply cable.
3. Wait 1 minute before starting work.
WARNING
Risk of injury due to loose compressed air lines and connectors
Loose compressed air lines and connectors can cause severe injury.
wBefore starting any work, depressurise all components.
4.1 Set-Up
TIP
wPosition ESUC as close as possible to the surface cleaning device to keep cable and
hose lengths to a minimum.
4.1.1 Version with Levelling Feet
The device must not be operated in any position other than upright on the levelling
feet.
1. Remove the transportation lock.

Installation | 4
ESUC 41/61/81 17
2. Lift ESUC from the transport pallet.
3. Reset the height of the four contact points from the floor by rotating the foot
shafts (levelling feet), so that the device stands vertically.
4. Lock the foot shafts using the locknuts.
5. Make sure the device is stable and stands firm on the ground.
4.1.2 Version with Rollers
The device must not be operated in any position other than upright on the rollers.
1. Remove the transportation lock.
2. Lift ESUC from the transport pallet.
3. Make sure the device is stable and stands firm on the ground.
4. Lock the front adjustable guide rollers by means of the locking levers.
4.2 Compressed Air Connection
Compressed air quality
The compressed air supply is provided by the customer. The compressed air must com-
ply with the following quality requirements in order to avoid damage to connected
peripheral devices:
▪ technical oil-free
▪ dry
▪ cleaned
▪ maximum residual dust content at least quality class6 (ISO8573-1:2010-04):
particle size 5μm, particle concentration 5mg/m3
Furthermore, depending on the cleaning requirements of the application, the com-
pressed air quality requirements can be considerably higher.
WARNING
Risk of injury due to loose compressed air lines and connectors
Loose compressed air lines and connectors can cause severe injury.
wBefore starting any work, depressurise all components.

4 | Installation
18 ESUC 41/61/81
TIP
Pressure losses in the compressed air supply line
Compressed air hoses that are too long, undersized cross-sections and constrictions to
the diameter in the compressed air supply line can lead to excessive pressure loss.
wKeep the compressed air hoses as short as practically possible.
wDimension the cross-section of the compressed air line according to the expected
flow rate.
wAvoid constrictions to the diameter in the compressed air supply line:
— no kinks
— no radii less than 3 x the hose diameter
— keep the number of quick-fit connectors as low as possible
1. Shut off the compressed air supply via the factory main valve.
2. Connect your own compressed air hose to the input side of the compressed air
maintenance unit (}Fig.1, p.12).
3. Connect the output side of the compressed air maintenance unit to the surface
cleaning device via a compressed air hose.
See also
29.3Pneumatic Supply Data [p.35]
4.3 Suction Connection
NOTICE
Equipment damage caused by foreign objects at the suction port
Should a foreign object get into the suction port, the filter or the suction fan may be
damaged.
wMake sure that no foreign objects are suctioned into the port.
TIP
Pressure losses in the suction system
Suction hoses that are too long, undersized cross-sections and constrictions to the dia-
meter in the suction system can lead to excessive pressure loss.
wKeep the suction hoses as short as practically possible.
wAvoid constrictions to the diameter in the suction system:
— no kinks
— no radii less than 3 x the hose diameter
1. Attach the suction hose(s) of the surface cleaning device to the appropriate suction
ports of ESUC with a hose clamp.
2. If necessary, set the suction volume flow via a possibly existing throttle valve
(}Fig.1, p.12, optional accessory) according to the requirements of the cleaning ap-
plication.

Installation | 4
ESUC 41/61/81 19
3. Close off unused suction ports of ESUC with the closing caps provided.
Exhaust of the filtered output air is optionally achieved via:
▪ Ventilation slots in the base of ESUC by downward diffusion
▪ Output air port (}Fig.1, p.12)
See also
29.4Output Air Suction and Filtering [p.35]
4.4 HV Outputs
NOTICE
Equipment damage due to an unsuitable HV power supply
If an unsuitable HV power supply is connected, there is a risk of damage to and de-
struction of the HV power supply and the connected ionisers. The warranty becomes
invalid.
wConnect the ionisers only to a suitable Dr.Escherich HV power supply.
NOTICE
Risk of a short circuit due to deformation of the HV cable
Severe constriction or crushing of the HV cable (e.g. by cable ties) can cause damage to
the interior insulation and thus after a time lead to a short circuit.
wAvoid excessive mechanical stress on the HV cable by deformation.
wObserve the minimum bend radius for HV cable (see Technical Data of the ioniser).
NOTICE
Equipment damage due to an electric arc
High voltage is applied to coaxial plugs of AC ionisers. When the HV power supply is
switched on and coaxial plugs are being plugged in or out, an arc may occur and dam-
age the socket of the HV power supply and the coaxial plug of the AC ioniser.
wPlug in and out coaxial plugs of the AC ionisers only when de-energised.
The HV cables of the ionisers are connected to the HV power supply via screw connect-
ors.
There are 4 HV outputs available.
1. Make sure that the HV power supply is switched off.
2. Screw the cap nut hand-tight.
Maximum permitted torque: 1 Nm.
NOTICE!When screwing on the cap nut, make sure that the cable does not
turn with it.
3. Close the unused sockets with blanking plugs in order to keep out dust and damp-
ness.

4 | Installation
20 ESUC 41/61/81
Earthing for the ionisers is provided via the existing HV cable and plug. No extra earth-
ing is required.
uObserve the maximum connection length (maximum permitted total load of all HV
outputs) according to }Table 4, p.20.
HV module installed HV output
Max. permitted total load
of the 4 HV outputs (total
length of ionisers and
cables)
Dr. Escherich HM55 Approx. 5.5kVAC / max.
5mA
15m at 50Hz
13m at 60Hz
Dr. Escherich HM60 Approx. 6kVAC / max.
5mA 20m
HAUG HM80-MULTISTAT Approx. 6.7kVAC / max.
3mA 15m
Table4: Maximum connection length
4.5 Electrical Installation
WARNING
Risk of injury in case of insufficiently qualified staff
Work performed on the product by unqualified staff may result in personal injury and
equipment damage.
wOnly qualified electricians and persons trained in electro-mechanics may install the
product.
WARNING
Risk of injury due to electric current
Conductive components can cause serious injury or death.
wDe-energise all components before you begin working.
wSecure the system against unwanted start-up.
WARNING
Danger of electric shock from residual voltage
For one minute after shutting down the supply, dangerous voltage remains. Touching
conductive components can cause death or serious injury.
1. Switch off the main switch.
2. Pull out the mains plug or disconnect the power supply cable.
3. Wait 1 minute before starting work.
The electrical supply data can be found on the corresponding manufacturer's specifica-
tion plate or circuit diagram.