Homa HRS.../4 series User guide

Original-Betriebsanleitung
EN - Original-Instruction Manual
HRS.../4, .../6
CHRS.../4, CHRS.../6
60
Hz

2 | ENGLISH
Content
1.
General Information..........................................................................................................3
1.1. Declaration of Conformity.................................................................................................................................3
1.2. Preface .............................................................................................................................................................3
1.3. Proper use ........................................................................................................................................................3
1.4. Copyright ..........................................................................................................................................................3
1.5. Warranty...........................................................................................................................................................3
2.
Safety..................................................................................................................................5
2.1. Instructions and safety information..................................................................................................................5
2.2 Guidelines used and CE certification.................................................................................................................5
2.3. General safety ..................................................................................................................................................5
2.4. Operating personal ...........................................................................................................................................5
2.5. Electrical work ..................................................................................................................................................5
2.6. Operating procedure.........................................................................................................................................6
2.7. Safety and control devices ...............................................................................................................................6
2.8. Operation in an explosive atmosphere.............................................................................................................6
2.9. Pumped fluids ..................................................................................................................................................6
3.
General description...........................................................................................................7
3.1. Application........................................................................................................................................................7
3.2. Types of Use.....................................................................................................................................................7
3.3. Construction .....................................................................................................................................................7
4.
Package, Transport, Storage ............................................................................................9
4.1. Delivery.............................................................................................................................................................9
4.2. Transport...........................................................................................................................................................9
4.3. Storage .............................................................................................................................................................9
4.4. Returning to the supplier .................................................................................................................................9
5.
Installation and Start-Up ..................................................................................................10
5.1. General .............................................................................................................................................................10
5.3. Start-Up ............................................................................................................................................................14
5.4. Electrical system .............................................................................................................................................14
5.5. Motor protection...............................................................................................................................................14
5.6. Operation with a static frequency converter ....................................................................................................14
5.7. Activation types................................................................................................................................................14
6.
Maintenance ......................................................................................................................15
6.1. General .............................................................................................................................................................15
6.2. Maintenance ....................................................................................................................................................15
6.3. Change of oil.....................................................................................................................................................16
7.
Shutdown...........................................................................................................................17
7.1. Temporary shutdown........................................................................................................................................17
7.2. Final shutdown / storage ..................................................................................................................................17
7.3. Restarting after an extended period of storage................................................................................................17
8.
Additional for FM submersible pumps............................................................................17
9.
Connection of pumps and mixers....................................................................................19
10.
Declaration of Contamination........................................................................................21

ENGLISH | 3
1. General Information
1.1. Declaration of Conformity
EC Declaration of conformity in line with the EC
Machinery Directive 2006/42/EEC, Appendix II Part 1 A
Manufacturer Name and Address:
HOMA Pumpenfabrik GmbH
Industriestraße 1
53819 Neunkirchen – Seelscheid
Germany
We hereby declare, that
HRS...-4, -6
CHRS...-4, -6
are conform to the following relevant requirements:
Machinery Directive 2006/42/EC
Applied harmonized standards of which have been
published in the official Journal of the EC
Responsible for compiling the technical documentation:
Vassilios Petridis
Head of Development and Production
HOMA Pumpenfabrik GmbH
This Declaration of Conformity was issued by:
Oberheister, 27/01/2020
Vassilios Petridis
Head of Development and Production
HOMA Pumpenfabrik GmbH
1.2. Preface
Dear Customer,
Thank you for choosing one of our company’s products.
You have purchased a product which has been manufac-
tured to the latest technical standards. Read this operat-
ing and maintenance manual carefully before you first use
it. This is the only way to ensure that the product is safely
and economically used.
The documentation contains all the necessary specifica-
tions for the product, allowing you to use it properly. In
addition, you will also find information on how to recog-
nize potential dangers, reduce repair costs and downtime,
and increase the reliability and working life of the product.
All safety requirements and specific manufacturer’s re-
quirements must be fulfilled before the product
is put into operation. This operating and maintenance
manual supplements any existing national regulations
on industrial safety and accident prevention. This manual
must also be accessible to personnel at all times and also
be made available where the product is used.
1.3. Proper use
The HOMA products comply with the valid safety regu-
lations and meet the demands of state-of-the-art tech-
nology. In the event of improper use, there is a danger
to life for the user as well as for third parties. Moreover,
the product and/or attachments may be damaged or de-
stroyed.
It is important to ensure that the product is only operated
in technically perfect condition and as intended.
To do so, follow the operating instructions.
1.4. Copyright
This operation and maintenance manual has been copy-
righted by the manufacturer. This operation and mainte-
nance handbook is intended for the use by assembly, op-
erating and maintenance personnel. It contains technical
specifications and diagrams which may not be reproduced
or distributed, either completely or in part, or used for any
other purpose without the expressed consent of the man-
ufacturer.
1.5. Warranty
Costs for removal and installation of the complained prod-
uct at the installation place, costs for the ride of the mech-
anicians to the location and from the installation place as
well as costs for transport are not components of our war-
ranty. Hereby arose costs, especially costs for checking
and transport are bearing by the sender or operator of the
pump. This is also valid for an asserted warranty claim if
a check results that the unit works faultless and is free of
defects. All products have a high quality standard. Each
product is defeated by a strict technical end control before
delivery. A warranty repair achieved by us does not extend
the warranty period. Replaced spare parts give no reasons
for a new warranty period. Extensive claims are excluded,
especially such as diminution, change or compensation
also for any kind of follow up damages.

4| ENGLISH
In order to ensure that your guarantee claim is processed
as efficiently as possible, please contact us or the appro-
priate sales representative.
Once your claim for a return has been agreed, you will
receive a return certificate. Please then send the rejected
product, carriage prepaid, to the factory together with the
return certificate, proof of purchase and an indication of
the damage. Claims made on grounds of damage caused
in transit must be established and confirmed on delivery
of the product by the express company, the railway com-
pany or the postal service.
1.5.1. General information
This chapter contains the general information on the war-
ranty. Contractual agreements have the highest priority
and are not superseded by the information in this chapter!
The manufacturer is obliged to correct any defects found
in the products it sells, provided that the following require-
ments have been fulfilled:
s The defects are caused by the materials used or the
way the product was manufactured or designed.
s The defects were reported in writing to the manufac-
turer within the agreed warranty period.
s The product was used only as prescribed.
s All safety and control devices were connected and
inspected by authorized personnel.
If no other provisions have been made, the warranty pe-
riod applies to the first 12 months after initial start-up
or to a max. of 24 months after the delivery date. Other
agreements must be made in writing in the order confir-
mation. These agreements will remain valid at least until
the agreed warranty period of the product has expired.
1.5.2. Spare parts, add-ons and conversions
Only original spare parts as supplied by the manufactur-
er may be used for repairs, replacements, add-ons and
conversions. Only these parts guarantee a long working
life and the highest level of safety. These parts have been
specially designed for our products. Self-made add-ons
and conversions or the use of non-original spare parts can
seriously damage the product and/or injure personnel.
1.5.3. Maintenance
The prescribed maintenance and inspection work should
be carried out regularly. This work may only be carried out
by qualified, trained and authorized personnel. The main-
tenance and inspection log supplied must be properly up-
dated. This enables you to monitor the status of inspec-
tions and maintenance work. Quick repairs not listed in
this operation and maintenance manual and all types of
repair work may only be performed by the manufacturer
and its authorized service centres.
1.5.4. Damage to the product
Damage as well as malfunctions that endanger safety
must be eliminated immediately by authorized personnel.
The product should only be operated if it is in proper work-
ing order. During the agreed warranty period, the product
may only be repaired by the manufacturer or an authorized
service workshop! The manufacturer reserves the right to
recall the damaged product to the factory for inspection!
1.5.5. Exclusion from liability
No liability will be assumed for product damage if one or
more of the following points apply:
s Incorrect design and on our part due to faulty and/
or incorrect information provided by the operator or
customer
s Non-compliance with the safety instructions, the reg-
ulations and the requirements set forth by German
law and
s this operating and maintenance manual
s Incorrect storage and transport
s Improper assembly/dismantling
s Improper maintenance
s Unqualified repairs
s Faulty construction site and/or construction work
s Chemical, electrochemical and electrical influences
s Wear
In case of a power failure or another technical failure, by
which a proper operation of the pump is no longer guar-
anteed, it is essential to take care that damages by an
overflow of the pump sump are prevented securely, for
example, by installing a mains-independent alarm or other
appropriate protective measures.
This means the manufacturer’s liability excludes all liability
for personal, material or financial injury.
1.5.6. Manufacturer’s address
HOMA Pumpenfabrik GmbH
Industriestrasse 1
D-53819 Neunkirchen-Seelscheid
Phone: +49 2247 / 7020
Fax: +49 2247 / 70244
Email: [email protected]
Homepage: www.homapumpen.de

ENGLISH | 5
2. Safety
This chapter lists all the generally applicable safety instruc-
tions and technical information. Furthermore, every other
chapter contains specific safety instructions and techni-
cal information. All instructions and information must be
observed and followed during the various phases of the
product‘s lifecycle (installation, operation, maintenance,
transport etc.). The operator is responsible for ensuring
that personnel follow these instructions and guidelines.
2.1. Instructions and safety information
This manual uses instructions and safety information for
preventing injury and damage to property.
To make this clear for the personnel, the instructions and
safety information are distinguished as follows:
Each safety instruction begins with one of the following
signal words:
s Danger: Serious or fatal injuries can occur!
s Warning: Serious injuries can occur!
s Caution: Injuries can occur!
s Caution (Instruction without symbol): Serious dam-
age to property can occur, including irreparable dam-
age!
Safety instructions begin with a signal word and descrip-
tion of the hazard, followed by the hazard source and po-
tential consequences, and end with information on pre-
venting it.
2.2 Guidelines used and CE certification
Our products are subject to
s various EC directives,
s various harmonized standards,
s various national standards.
Please consult the EU Declaration of Conformity for the
precise information and the guidelines and norms in
effect.
Also, various national standards are also used as a basis
for using, assembling and dismantling the product. These
include the German accident prevention regulations, VDE
regulations, German Equipment Safety Law etc. The CE
symbol is found either on the type plate or next to the
type plate. The type plate is attached to the motor casing.
2.3. General safety
s Never work alone when installing or removing the
product.
s The machine must always be switched off before
any work is performed on it (assembly, dismantling,
maintenance, installation). The machine must be dis-
connected from the electrical system and secured
against being switched on again. All rotating parts
must be at a standstill.
s The operator should inform his/her superior immedi-
ately should any defects or irregularities occur.
s It is of vital importance that the system is shut
down immediately by the operator if any problems
arise which may endanger safety of personnel.
Problems of this kind include:
s Failure of the safety and/or control devices
s Damage to critical parts
s Damage to electric installations, cables and in-
sulation.
s Tools and other objects should be kept in a place re-
served for them so that they can be found quickly.
s Sufficient ventilation must be provided in enclosed
rooms.
s When welding or working with electronic devices,
ensure that there is no danger of explosion.
s Only use fastening devices which are legally defined
as such and officially approved.
s The fastening devices should be suitable for the con-
ditions of use (weather, hooking system, load, etc). If
these are separated from the machine after use, they
should be expressly marked as fastening devices.
Otherwise they should be carefully stored.
s Mobile working equipment for lifting loads should
be used in a manner that ensures the stability of the
working apparatus during operation.
s When using mobile working equipment for lifting non
guided loads, measures should be taken to avoid tip-
ping and sliding etc.
s Measures should be taken that no person is ever di-
rectly beneath a suspended load. Furthermore, it is
also prohibited to move suspended loads over work-
places where people are present.
s If mobile working equipment is used for lifting loads,
a second person should be present to coordinate the
procedure if needed (for example if the operator‘s
field of vision is blocked).
s The load to be lifted must be transported in such a
manner that nobody can be injured in the case of a
power cut. Additionally, when working outdoors,
such procedures must be interrupted immediately if
weather conditions worsen.
s These instructions must be strictly observed. Non-ob-
servance can result in injury or serious damage to
property.
2.4. Operating personal
All personnel who work on or with the product must be
qualified for such work; electrical work, for example may
only be carried out by a qualified electrician. The entire
personnel must be of age.
Operating and maintenance personnel must also work ac-
cording to local accident prevention regulations.
It must be ensured that personnel have read and under-
stood the instructions in this operating and
maintenance handbook; if necessary this manual must be
ordered from the manufacturer in the required language.
2.5. Electrical work
Our electrical products are operated with alternating or
industrial high-voltage current. The local regulations (e.g.
VDE 0100) must be adhered to. The “Electrical connec-
tion” data sheet must be observed when connecting the
product. The technical specifications must be strictly ad-
hered to. If the machine has been switched off by a pro-
tective device, it must not be switched on again until the
error has been corrected.

6| ENGLISH
Beware of electrical current!
Incorrectly performed electrical work can result in
fatal injury!This work may only be carried out by a
qualified electrician.
Beware of damp!
Moisture penetrating cables can damage them and
render them useless. Furthermore, water can pene-
trate into the motor and cause damage to the termi-
nals or the winding. Never immerse cable ends in the
pumped fluid or other liquids.
2.5.1. Electrical connection
When the machine is connected to the electrical control
panel, especially when electronic devices such as soft
startup control or frequency drives are used, the relay
manufacturer‘s specifications must be followed in order
to conform to EMC. Special separate shielding measures
e.g. special cables may be necessary for the power supply
and control cables. The connections may only be made
if the relays meet the harmonized EU standards. Mobile
radio equipment may cause malfunctions.
Beware of electromagnetic radiation! Electromag-
netic radiation can pose a fatal risk for people with
pacemakers. Put up appropriate signs and make sure
anyone affected is aware of the danger.
2.5.2. Ground connection
Our products (machine including protective devices and
operating position, auxiliary hoisting gear) must always be
grounded. If there is a possibility that people can come
into contact with the machine and the pumped liquid (e.g.
at construction sites), the grounded connection must be
additionally equipped with a fault current protection de-
vice. The electrical motors conform to motor protection
class IP 68 in accordance with the valid norms.
2.6. Operating procedure
When operating the product, always follow the locally
applicable laws and regulations for work safety, accident
prevention and handling electrical machinery. To help to
ensure safe working practice, the responsibilities of em-
ployees should be clearly set out by the owner. All per-
sonnel are responsible for ensuring that regulations are
observed. Certain parts such as the rotor and propeller
rotate during operation in order to pump the fluid. Certain
materials can cause very sharp edges on these parts.
Beware of rotating parts! The moving parts can
crush and sever limbs. Never reach into the pump
unit or the moving parts during operation. Switch off
the machine and let the moving parts come to a rest
before maintenance or repair work!
2.7. Safety and control devices
Our products are equipped with various safety and con-
trol devices. These include, for example suction strainers,
thermo sensors, sealed room monitor etc. These devices
must never be dismantled or disabled. Equipment such as
thermo sensors, float switches, etc. must be checked by
an electrician for proper functioning before start-up (see
the “Electrical Connection” data sheet).
Please remember that certain equipment requires a de-
coder device or relay to function properly, e.g. posistor
and PT100 sensor. This decoder can be obtained from the
manufacturer or a specialist electronics dealer. Personnel
must be informed of the installations used and how they
work.
Caution!
Never operate the machine if the safety and monitor-
ing devices have been removed or damage, or if they
do not work.
2.8. Operation in an explosive atmosphere
Products marked as explosion-proof are suitable for opera-
tion in an explosive atmosphere. The products must meet
certain guidelines for this type of use. Certain rules of con-
duct and guidelines must be adhered to by the operator as
well. Products that have been approved for operation in an
explosive atmosphere are marked as explosion-protected
“Ex”. In addition, an “Ex” symbol must be included on
the type plate! When used in an explosive atmosphere,
the additional chapter entitled “Explosion protection ac-
cording to the …standard” must be observed!
2.9. Pumped fluids
Each pumped fluid differs in regard to composition, cor-
rosiveness, abrasiveness, TS content and many other
aspects. Generally, our products can be used for many
applications. For more precise details, see chapter 3, the
machine data sheet and the order confirmation. It should
be remembered that if the density, viscosity or the gener-
al composition change, this can also alter many parame-
ters of the product.
When switching the product into another pumped fluid,
observe the following points:
s Products which have been operated in sewage or
waste water must be thoroughly cleaned with pure
water or drinking water before use.
s Products which have pumped fluids which are haz-
ardous to health must always be decontaminated
before changing to a new fluid. Also clarify whether
the product may be used in a different pumped fluid.
s With products which have been operated with a lu-
bricant or cooling fluid (such as oil), this can escape
into the pumped fluid if the mechanical shaft seal is
defective.
Danger - explosive fluids!
It is absolutely prohibited to pump explosive liquids
(e.g. gasoline, kerosene, etc.). The products are not
designed for these liquids!

ENGLISH | 7
3. General description
3.1. Application
Submersible mixers are used for various applications such
as mixing, homogenization and suspension of liquids with
low to medium viscosity. Max. 6% liquids in the medium!
3.2. Types of Use
The motors are designed for continuous operation (S1),
maximum 15 starts per hour.
3.3. Construction
The pump consists of the motor and the pump housing
as well as the propeller which belongs to it. All important
parts of the pump are characterized by generous dimen-
sioning.
햲
햳
햷
햵
햴
햶
min. 200
No. Description
1top guide bar with horizontal positioner
2 motor bracket
3square guide bar
4guide bar base
5 lifting rope
6cover 1xØ propeller dia. minimum 500 mm
3.3.1. Type label
min-1
Sn:
Type:
PropØ:
F:
Motor:
kWIns. cl.:
N
Tmax: °C
min-1
kg
Hz
AU:
U: V
P2:
V
kW
Cos φ:
I:
Made in Germany
A
I:
P1:
Homa Pumpenfabrik GmbH
D-53819 N.-Seelscheid
Germany
3~
m
3
2
456
78
13
14 15
16 17 18
19 20 21
22 23 24
25 26 27
28
1
Homa Pumpenfabrik GmbH
D-53819 N.-Seelscheid
Germany
Sn:
Type:
PropØ:
F:
mm
N
Tmax: °C
min-1
kg
min-1
Motor:
kWIns. cl.:
Hz
AU:
U: V
P2:
V
kW
Cos φ:
I: A
I:
P1:
Made in Germany
Do not open when non-intrinsically safe circuits are energized
3~
m
32 456
7813
14 15
16 17 18
19 20 21
22 23 24
25 26 27
28
1
30
32
29
31
3 Ph
3 Ph Ex
No. 3 Ph 3 Ph Ex
1 Type description Type description
2 Serial number Serial number
3 Propeller diameter Propeller diameter
4Temperature of medium Temperature of medium
5 Submersion depth Submersion depth
6 Weight Weight
7 Thrust Thrust
8 Propeller speed Propeller speed
13 Build year Build year
14 Motor type Motor type
15 IE Marking IE Marking
16 Frequency Frequency
17 Voltage - triangel Voltage - triangel
18 Nominal current - triangel Nominal current - triangel
19 Motor RPM Motor RPM
20 Voltage - Star Connection Voltage - Star Connection
21 Nominal current Star
connection
Nominal current Star
connection
22 Insulation class Insulation class
23 Power P1 Power P1
24 Cos phi Cos phi
25 Protection class Protection class
26 Power P2 Power P2
27 Operating class Operating class
28 Text field sales Ex-certification number
29 Ex-test lab
30 Ex-designation
31 Ex-i-power circuit details
32 Text field sales

8| ENGLISH
3.3.5. Propeller
A self cleaning propeller from stainless steel is used.
3.3.2. Motor
The three-phase asynchronous motor is made from sheet
metal with a double-varnished winding wire as well as the
motor shaft with rotor package. The power supply cable is
designed for the maximum mechanical load and is sealed
against water pressure from the pumped liquid. The mo-
tor cable lead connections are sealed from the pumped
liquid as well. The bearings used are permanently lubricat-
ed maintenance-free antifriction bearings.
All models are available with explosion proof motors.
General motor data
Operating mode S1
Insulation class F (155°C)
Degree of protection IP68
Cable length 10 m
Shaft sealing HRS NBR
Bearing one grooved ball bearing (suspension side)
one double-row type angular ball bearing
(propeller side)
3.3.3. Control devices
The pump is equipped with various safety and control de-
vices:
Temperature Sensors
The mixers have a set of temperature sensors built in the
stator windings.
Standard models have the sensors connected to the mo-
tor power supply cable, the wire ends marked T1 and T3.
They must be connected to the safety circuit of the con-
trol box in order to provide an automatic re-start of the mo-
tor, when the motor cools. Explosion proof models with
motors up to 15 kW have a set of temperature sensors
built-in, with a higher switch-off temperature, connected
to the motor cable, the wire ends marked T1 and T2. They
must be connected to a special relay in the starter box in
order to provide manual pump re-start. All explosion proof
models have both sets of sensors built-in, as described
above, with wire ends marked T1, T2, T3. They have to be
connected accordingly as described above. The tempera-
ture sensor set must be connected to the switchgear unit
so that it switches off if it overheats.
Check of Direction of Rotation
After the electrical connection has been made, check that
the agitator propeller is rotating in the correct direction.
As seen from the motor, the propeller must rotate clock-
wise. If you ordered a special version with left-hand drive,
the propeller must turn counter-clockwise. If the direction
of rotation of the agitator propeller is incorrect, transpose
two of the three conductor phases (L1, L2, L3) coming
directly from the mains.
Beware of rotating propeller!
The moving propeller can crush and sever limbs.
Switch off the machine and let the moving parts
come to a rest before maintenance or repair work!
Seal condition sensors oil chamber
Agitator motors in the HRS…/C and CHRS…/C series are
fitted as standard with monitoring of the sealing of the oil
barrier chamber. Two sensors monitor the conductibility
of the oil filling. The sensors are to be connected via the
connecting cables with the cable-end designations S1 and
S2 in the switchgear to an evaluation instrument with a
galvanically isolated sensor circuit (electrode relay). If the
shaft seal leaks, water enters the oil chamber and chang-
es the resistance of the oil. Response sensitivity should
be adjustable from 0-100 kÙ. The standard setting is 50
kÙ. If this is an antiexplosion design, select electrode re-
lays with intrinsically safe circuits for sensors.
Motor cooling
They are cooled by the surrounding liquid.

ENGLISH | 9
4. Package, Transport, Storage
4.1. Delivery
On arrival, the delivered items must be inspected for dam-
age and a check made that all parts are present. If any
parts are damaged or missing, the transport company or
the manufacturer must be informed on the day of delivery.
Any claim made at a later date will be deemed invalid.
Damage to parts must be noted on the delivery or freight
documentation.
4.2. Transport
Only the appropriate and approved fastening devices,
transportation means and lifting equipment may be used.
These must have sufficient load bearing capacity to en-
sure that the product can be transported safety. If chains
are used they must be secured against slipping. The per-
sonnel must be qualified for the tasks and must follow all
applicable national safety regulations during the work. The
product is delivered by the manufacturer/shipping agency
in suitable packaging. This normally precludes the possi-
bility of damage occurring during transport and storage.
The packaging should be stored in a safe place if the loca-
tion used is changed frequently.
4.3. Storage
Newly supplied products are prepared that they can be
stored for 1 year. The product should be cleaned thor-
oughly before interim storage.
The following should be taken into consideration for
storage:
s Place the product on a firm surface and secure it
against falling over. Submersible mixers and aux-
iliary lifting devices should be stored horizontally,
submersible sewage pumps and submersible motor
pumps should be stored horizontally or vertically. It
should be ensured that they cannot bend if stored
horizontally.
Danger from falling over!
Never put down the product unsecured. If the
product falls over, injury can occur!
s The product has to be stored at a place free from vi-
brations and agitation to avoid damage from the ball
bearings.
s It is also necessary to pay attention to the storage.
The device should be stored in dry rooms without
temperature fluctuation.
s The product may not be stored in rooms where weld-
ing work is conducted as the resulting gases and ra-
diation can damage the elastomer parts and coatings.
s It is responsible to take care that the corrosion coat-
ing will not be spoiled
s Any suction or pressure connections on products
should be closed tightly before storage to prevent
impurities.
s The power supply cables should be protected against
kinking, damage and moisture.
Beware of electrical current!
Damaged power supply cables can cause fatal inju-
ry! Defective cables must be replaced by a qualified
electrician immediately.
Beware of damp!
Moisture penetrating cables can damage them and
render them useless. Therefore, never immerse ca-
ble ends in the pumped fluid or other liquids.
s The machine must be protected from direct sunlight,
heat, dust, and frost. Heat and frost can cause con-
siderable damage to propellers, rotors and coatings.
s The rotors or propellers must be turned at regular in-
tervals. This prevents the bearing from locking and
the film of lubricant on the mechanical shaft seal is re-
newed. This also prevents the gear pinions (if present
on the product) from becoming fixed as they turn and
also renews the lubricating film on the gear pinions
(preventing rust film deposits).
Beware of sharp edges!
Sharp edges can form on rotors and propellers.
There is a risk of injuries. Wear protective gloves.
s If the product has been stored for a long period of
time it should be cleaned of impurities such as dust
and oil deposits before start-up. Rotors and propellers
should be checked for smooth running, housing coat-
ing and damage.
s After storage longer than one year the oil of motor
and, if necessary the gear have to be changed. This
is also necessary if the product never had run (natural
deterioration of mineral oil).
Before start-up, the filling levels (oil, cooling fluid
etc.) of the individual products should be checked and
topped up if required. Please refer to the machine data
sheet for specifications on filling. Damaged coatings
should be repaired immediately. Only a coating that
is completely intact fulfills the criteria for intended
usage!
If these rules are observed, your product can be stored
for a longer period. Please remember that elastomer parts
and coatings become brittle naturally. If the product is
to be stored for longer than 6 months, we recommend
checking these parts and replacing them as necessary.
Please consult the manufacturer.
4.4. Returning to the supplier
Products which are delivered to the plant must be clean
and correctly packaged. In this context, clean means
that impurities have been removed and decontaminat-
ed if it has been used with materials which are hazard-
ous to health. The packaging must protect the product
against damage. Please contact the manufacturer before
returning!

10 | ENGLISH
5. Installation and Start-Up
5.1. General
In order to prevent damage to the mixer or serious injury
during installation the following points must be observed:
s Installation work may only be carried out by qualified
persons. The safety instructions must be followed at
all times.
s The mixer must be inspected for damages before any
installation work is carried out.
s Protect the mixer from frost.
s The operating area must be laid out for each machine.
You must ensure that lifting gear can be fitted without
any trouble, since this is required for assembly and
removal of the machine.
s The maximum bearing capacity must be greater than
the weight of the machine, add-on units and cable.
s Electric power cables must be laid out in such a way
that safe operation and non-problematic assembly/
dismantling are possible at all times.
s The electric power cables should be fastened prop-
erly to the pipes with cable holders or other suitable
equipment. This should prevent loose hanging and
damage to the electric power cables. Depending on
the cable length and weight, a cable holder should be
fitted every two or three meters.
s The structural components and foundations must be
of sufficient stability to ensure safe and functional op-
eration. The operator or supplier is responsible for the
provision.
s Never let the unit run dry.
s Use defector plates for the pumped fluid intake that
air cannot introduce into the pumped liquid. this will
lead to that the pump will run smoothly and is sub-
jected to higher wear and tear.
5.2. Installation
Danger of falling!
Installation work for the mixer and its accessories
is performed directly on the edge of the basin. Care-
lessness or wearing inappropriate clothing could
result in a fall. There is a risk of fatal injury! Take all
necessary safety precautions to prevent this.
Mixer
The mixer is delivered ready assembled. During installa-
tion of the mixer please check the following:
Propeller
The propeller must not touch the tank floor or walls in any
possible installation position (min. 20 cm distance).
Motor Cable
The cable must not be stretched even when the mixer is
completely lowered. The cable should be positioned with
always providing large bending radius in order to prevent
breaking. The connecting cable should be guided as tight
as possible towards the top, so it is not caught in the flow.

ENGLISH | 11
Operating Voltage / Direction Control
The operating voltage of the system is to check for conformity according to type plate data.
The protective cap located on the cable must be removed just before the electrical connection.
After electrical connection, the correct direction of the stirring propeller mixer must be inspected.
If the rotational direction of the stirring propeller is incorrect, two of the three conductor phases (L1, L2, L3) that are direct-
ly supplied from the mains must the interchanged.
Assembling the motor bracket to the mixer
Fasten the mixer to the motor bracket (Item 12) as illustrated, using two cylinder head screws (Item 1), one cylinder head
screw (Item 2) and the associated U-washers (Items 3 & 4). Additionally use a medium- strength thread locker to avoid an
unintended release of the screws during operation. Lay the connecting cable between the pipe clamps (Item 6) and screw
it to the motor bracket using two cylinder head screws and U-washers (Items 5 & 4). Great care should also be taken to
ensure that the cable is always laid or assembled on a large radius, so that any sharp bend in the cable is prevented.
쐃쐋쐎
쐊
쐆
쐉
쐇쐏
쐅
쐂
쐄
쐏

12 | ENGLISH
Lowering and guiding mechanisms
Before assembling the lowering and guiding mechanism, the local conditions governing installation (basin shape,
circulation conditions etc.) must be ascertained.
It must be ensured that the mixer is freely mobile in the built-in condition and that additional fittings have no effect on flow.
No. Description
1 lower fastening
2 upper fastening
3angel clamp bracket
4square tube
5 mixer
6motor bracket
7 cable anchor clamp
8 stainless steel wire
9 lifting gear
10 floor-mounted box column
쐆
쐂
쐊
쐅
쐎
쐇
쐏
쐄
쐃
쐋

ENGLISH | 13
The upper fastening (Item 2) must be attached in the ba-
sin first of all. Use the supplied anchor rods and bonding
anchor cartridges for this purpose.
In the next step, attach the square tube (Item 4, to be pro-
vided on site) to the upper and lower fastenings (Item 1).
Next, hold the upper fastening on the anchor rods intend-
ed for that purpose and fasten the anchor rods with the
nuts. The position of the lower fastening has now been
determined. Use the supplied anchor rods and bonding
anchor cartridges for fastening it.
Now install the angle clamp brackets (Item 3). These rep-
resent the bearing point of the motor bracket.
Now lower the mixer on to the bracket in the basin. When
the motor bracket lies on the angle clamp bracket, the
connecting cable must be clamped in the cable anchor
clamp (Item 7). At the same time it must be ensured that
the cable is led upwards as tautly as possible so that it is
not caught by the delivery flow.
쐆

14 | ENGLISH
5.3. Start-Up
The mixer must only be started when fully sub-
merged, in order to prevent overheating of the motor.
Any change of mixer position must only be done with
mixer having been switched off and propeller not ro-
tating.
Before start up, check again that all steps of installa-
tion procedure have been properly carried out. Make
sure that the mixer is sufficiently submerged (see
chapter 8+9), and that there are no solid parts in the
tank which might damage the propeller. Furthermore,
it must be ensured that the mixer is immersed at least
half the diameter of the propeller.
Make sure that all necessary safety precautions have
been carried out, e.g. to prevent persons from falling into
the tank. After longer standstill of the mixer, clean the
propeller and motor surface from dried remains of mixing
liquid in order to prevent cooling problems.
5.4. Electrical system
Observe the relevant local and national regulations when
laying out and selecting the electric lines as well as when
connecting the motor. The motor must be protected by
a motor protection switch. Have the motor connected
in accordance with the “Wiring connection” data sheet.
Pay attention to the direction of rotation. If the direction
of rotation is incorrect, the machine will not perform as
specified, and under certain circumstances, can become
damaged. In accordance with the machine data sheet,
check the operating voltage and make certain that the
current consumption remains uniform during all phases.
Make sure that all temperature sensors and monitoring
devices, are connected and that their function is tested.
For details on this, see the wiring diagram.
Beware of electrical current! Incorrectly performed
electrical work can result in fatal injury. This work
may only be carried out by a qualified electrician.
5.5. Motor protection
The minimum requirement is a thermal relay / motor pro-
tection switch with temperature compensation, differen-
tial triggering and an anti-reactivation device in accordance
with VDE 0660 or the appropriate national regulations.
If the machines are connected to electrical systems in
which faults frequently occur, we recommend installing
additional protective devices (overvoltage, undervoltage
or phase failure relays, lightning protection). Local and na-
tional regulations must be adhered to when connecting
the machine.
5.6. Operation with a static frequency converter
The following points must be observed when operating
the converter:
s The pump is suitable for operation with the frequency
converter according to DIN EN 60034-17.
s Voltage peaks at the motor winding must be avoided
and, where appropriate, suitable filters must be pro-
vided in the motor lead.
s The proper grounding of the entire system must be
ensured.
s The specifications of the frequency converter manu-
facturer must be observed.
s Under certain circumstances, a shielded cable is nec-
essary to comply with EMC directives.
s The information sheet “Using HOMA pumps with the
frequency converter” must be observed.
5.7. Activation types
Activation types for cables with free ends (without plugs)
Star-delta activation
If the motor protection is installed in the line:
Set the motor protection to 0.58 x the rated current. The
maximum start-up time in star-delta mode is 3 seconds.
If the motor protection is not installed in the line, set the
motor protection to the rated current when fully loaded.
Starting transformer/soft start
Motor protection should be set to the rated current when
fully loaded. At partial load, we recommend that motor
protection is set 5% above the measured current at the
operating point. The maximum start-up time at reduced
voltage (approx. 70%) is 3 seconds.
Operation with frequency transformers
The machine can be operated on frequency transformers.
Observe chapter 5.6 of this manual.
5.7.1. After Start-Up
The rated current is briefly exceeded during the start-up
procedure. Once this process has ended, the operating
current should no longer exceed the rated current. If the
motor does not start immediately after the machine is
switched on, it must be switched off immediately. The
start pauses specified in the technical data must be ad-
hered to before starting up again. If the fault recurs, the
machine must be switched off again immediately. The
machine may only be started again once the fault has
been rectified.
The following items should be monitored:
s Operating voltage (permissible deviation +/- 5% of
the rated voltage)
s Frequency (permissible deviation -2% of the rated
frequency)
s Current consumption (permissible deviation between
phases is a maximum of 5%)
s Voltage difference between the individual phases
(max. 1%)
s Starts and stops per hour (see technical data)
s Minimum water immersion level, level control unit,
dry-run protection
s Smooth running
s Check for leaks, if need be, follow the necessary
steps as set out in “Maintenance”

ENGLISH | 15
6. Maintenance
6.1. General
The machine and the entire system must be inspected
and maintained at regular intervals. The time limit for
maintenance is set by the manufacturer and applies to
the general conditions of use. The manufacturer should
be consulted if the system is to be used with corrosive
and/or abrasive pumped liquids, as the time limit between
inspections may need to be reduced.
Note the following information:
s The operating and maintenance manual must be
available to the maintenance personnel and its in-
structions followed. Only the repair and maintenance
measures listed here may be performed.
s All maintenance, inspection and cleaning work on the
machine and the system may only be carried out by
trained specialists exercising extreme care in a safe
workplace. Proper protective clothing is to be worn.
The machine must be disconnected from the electric-
ity supply before any work is carried out. There must
be no way that it can be inadvertently switched on.
Additionally, the appropriate protective measures as
defined by the BGV/GNV should be enforced when
working in basins and/or containers.
s Above a weight of 50kg, only hoisting gear which has
been officially approved and which is in a technical-
ly perfect condition should be used for lowering and
raising the machine.
Make sure that all fastening devices, ropes and safety
devices of the hand winch are in a technically perfect
condition. Work may only commence if the auxiliary
hoisting gear has been checked and found to be in
perfect working order. If it is not inspected, danger to
personnel may result!
s Wiring work on the machine and system must be
carried out by an electrician. For machines approved
for work in areas subject to explosion danger, please
refer to the “Explosion protection in accordance with
the regulation” chapter.
s When working with inflammable solvents and clean-
ing agents, fires, unshielded lighting and smoking are
prohibited.
s Machines which circulate fluids hazardous to health,
or which come into contact with them, must be de-
contaminated. It must be ensured that no dangerous
gases can form or are present.
s Ensure that all necessary tools and materials are
available. Tidiness and cleanliness guarantee safe and
problem-free operation of the machine. After work-
ing on the machine all cleaning materials and tools
should be removed from it. All materials and tools
should be stored in an appropriate place.
s Operating supplies such as oil and lubricants must
be collected in appropriate vessels and properly dis-
posed of (in accordance with the 75/439/EEC direc-
tive and with §§5a, 5b AbfG). Appropriate protective
clothing is to be worn for cleaning and maintenance
jobs. This is to be disposed of in accordance with
waste code TA 524 02 and EC Directive 91/689/
EEC. Only lubricants expressly recommended by the
manufacturer may be used. Oils and lubricants should
not be mixed. Only use genuine parts made by the
manufacturer.
A trial run or functional test of the machine must be
performed as instructed in the general operating con-
ditions.
Before maintenance or repair disconnect the mixer
from the power supply to prevent accidental starting
of the mixer!
In accordance with the product liability law we point
out that we shall not be liable for damages caused by
our product due to unauthorized repair by persons
other than the manufacturer or an authorized work-
shop or due to the use of spare parts other than orig-
inal HOMA parts. The same product liability limita-
tions are valid for accessories.
Before maintenance or repair make sure that all ro-
tating parts stand still!
Before carrying out maintenance and service, the
mixer must be thoroughly flushed with clean water.
When loosening of the oil chamber control screw,
overpressure can escape. Release the screw only
when pressure balance is secured.
If not otherwise stated, the torque values of the be-
low tables should be used.
Values stated are for clean, lubricated screws.
Fixing torque [Nm] for screws A2/A4 (Coefficient of fric-
tion = 0,2)
A2/A4,
Hardeness class 70
A2/A4,
Hardeness class 80
DIN912/DIN933 DIN912/DIN933
M6 7 Nm 11,8 Nm
M8 17 Nm 28,7 Nm
M10 33 Nm 58 Nm
M12 57 Nm 100 Nm
M16 140 Nm 245 Nm
M20 273 Nm 494 Nm
6.2. Maintenance
It is imperative to keep a maintenance list to be always
informed about the submersible mixer. This list must be
presented to the trade association, the technical inspec-
tion agencies and the manufacturer of the system or of
the mixer when requested.
The full warranty requires the annual inspection of
the mixer by the manufacturer of the system or of the
mixer.

16 | ENGLISH
6.2.1. General (monthly or every 500 operating hours)
Keep the agitator clean (otherwise cooling is impaired).
Foreign bodies that have been picked up must be re-
moved from the agitator. The connection cable must be
examined for abrasions, traction marks, buckling and oth-
er damage. If the cable is defective there is a danger that
the agitating medium may enter the agitator and cause
damage. A defective cable must be immediately replaced
by the manufacturer or an authorized workshop. The ag-
itator must be checked for damage to the corrosion pro-
tection coating and for leaks.
6.2.2. Electric motor
The power consumption should be checked on a monthly
basis in all 3 phases. Damage to the motor, transmission
and storage can be recognized by the current consump-
tion.
Lubrication: The roller bearings are lubricated for their
lifespan (in case of noise, the bearings must be replaced
at the manufacturer’s factory). The oil in the oil chamber
should be changed after each 6000 operating hours.
Oil condition: Lay the agitator horizontally, so that one of
the oil chamber screws is on top. Remove the screw and
remove a small amount of oil. If the oil is cloudy or milky,
this indicates a defective shaft seal. In this case, have the
condition of the shaft seals checked by a HOMA dealer or
the customer service department. Replace missing parts.
Insulation test: If the insulation resistance is less than 2
megaohms, the submersible mixer can not be turned on.
(Measuring DC voltage 1500 V)
6.2.3. Stirring Propeller
Inspection: Inspect the stirring propeller periodically.
Remove random wound foreign bodies such as twines,
cords, etc. They can cause uneven running and thus cre-
ate strong vibrations in the system and can lead to dam-
age on the mixer components. With uneven running, the
stirring propeller must be cleaned.
6.3. Change of oil
Change oil only with motor at operation temperature.
Note that the mixer must be in a horizontal position
when changing oil.
When releasing the oil level screws, excess pressure may
escape from the oil chamber or the gearbox. Only remove
the screws completely after the pressure was equalized.
The thread and the magnets (on the gearbox) of the
screws must be clean before screwing them back on.
The sealing rings must be always replaced with new parts.
6.3.1 Oil chamber
Oil: biodegradable Shell Ondina 917. Used oil must be dis-
posed of properly. The oil capacity is:
HRS07 - 27 0.7 l
HRS29 - 32 1.0 l
CHRS07 - 25 0.8 l
CHRS27- 32 1.1 l
Procedure:
1. Loosen the oil drain plug
2. Drain oil
3. Fill prescribed type and quantity of oil
4. Screw in the oil drain plug
Oil screw

ENGLISH | 17
7. Shutdown
7.1. Temporary shutdown
For this type of shutdown, the machine remains installed
and is not cut off from the electricity supply. For tempo-
rary shutdown, the machine must remain completely sub-
merged so that it is protected from frost and ice. Make
sure the operating room and the pumped fluid cannot be
covered by ice. This ensures that the machine is always
ready for operation. During longer shutdown periods, car-
ry out a regular (monthly to quarterly) function run for a
period of 5 minutes.
Caution!
Only carry out a function run under the proper con-
ditions of operation and use. Never run the machine
dry. This can result in irreparable damage!
7.2. Final shutdown / storage
Switch off the system, disconnect the machine from the
electricity supply and dismantle and store it. Note the fol-
lowing information concerning storage:
Beware of hot parts!
When removing the machine, be careful of the tem-
perature of the housing components. These can heat
up to well above 40°C. Let the machine cool down to
ambient temperature before you touch it.
s Clean the machine.
s Store it in a clean, dry place, protect the machine
against frost.
s Place it down vertically onto a firm foundation and
secure it against falling.
s Seal the intake and discharge ports of pumps with
suitable material (such as foil).
s Support the electric connecting lead on the cable
lead-in to help avoid a permanent deformation.
s Protect the ends of the electric power cable from
moisture.
s Protect the machine from direct sunshine as a pre-
ventive measure against brittleness in elastomer
parts and the propeller and casing coating.
s When storing the machine in a garage please remem-
ber: Radiation and gases which occur during electric
welding destroy the elastomers of the seals.
s During lengthy periods of storage, regularly (for ex-
ample every six months) turn the impeller or propeller
by hand. This prevents indentations in the bearings
and stops the rotor from rusting up.
7.3. Restarting after an extended period of storage
Before restarting the machine, clean it of dust and oil de-
posits. Then carry out the necessary maintenance actions
(see “Maintenance”). Check that the mechanical shaft
seal is in good order and working properly. Once this work
has been completed, the machine can be installed (see
“Installation”) and connected to the electricity supply by
a specialist. See “Start-up” for instructions on restarting.
Only restart the machine if it is in perfect condition and
ready for operation.
8. Additional for FM submersible pumps
8.1. GENERAL INSTRUCTIONS
This manual is intended to provide basic installation and
start-up guidance. It is to be read and thoroughly studied
prior to attempting to install or operate any of the equip-
ment supplied. Equipment damage, which occurs by not
following these instructions will void the warranty.
8.2. SAFETY PRECAUTIONS
Only trained qualified personnel shall be utilized for instal-
lation and start-up.
The following is a general list of safety precautions that
should be followed when installation starting-up or servic-
ing the pump.
The pump station owner or operator is ultimately re-
sponsible for ensuring that all equipment is installed,
started up and operated in a safe manner.
s Do not work alone.
s Double check to make sure that all lifting equipment
is in good working order and that it has adequate lift-
ing capacity for the weight that it will handle.
s Wear safety helmet, goggles and protective shoes, or
appropriate safety materials required.
s Before working on the pump make sure that the pow-
er is disconnected and cannot be energized by oth-
ers. Lockout and tag the control panel circuit breaker.
s Do not stand under suspended loads!
s Never enter or work within a wet well without first
checking to make sure sufficient oxygen is present
and that there are no explosive or poisonous gases
present.
s All personnel, who work with sewage pumping
equipment and systems shall be vaccinated against
diseases that can occur. If there are any questions or
doubts in this area it is strongly suggested that the
local health agency be contacted.
s For Hazardous Area Classifications, only use pumps
with suitable Explosion Proof Rating.
8.3. EQUIPMENT INVENTORY AND INSPECTION
Upon arrival of pump shipment carefully unpack all com-
ponents and compare with shipping and purchase order
documents to ensure that the order is complete. Also
inspect equipment for any damage that might have oc-
curred in shipment. If any problems are detected contact
an authorized HOMA customer service immediately.
8.4. TRANSPORTATION AND STORAGE PROCEDURE
Always lift the pump by its lifting bail or eye bolt.
Never lift the pump by its power cable! Jacketed
pump should never stored or shipped with the pump
by the jacket. Damage to Sealing O ring may result.
Pumps should be stored in an upright position, taking ex-
treme care to protect the power cable and control cables
from crushing, nicks or tears which would permit water
intrusion. Power cable ends must be protected from im-
mersion in water as well as moisture intrusion.

18 | ENGLISH
The cable will wick water into the pump if it is not protect-
ed properly. Power cable leads should be covered with
shrink tubing or suitable sealing material during storage.
Short Term Storage: Short term storage is defined as any
time less than six months. We recommend that pump and
accessories be stored in its original shipping container in a
dry, temperature controlled area. If climate controlled stor-
age is not possible, all exposed parts should be inspect-
ed before storage and all surfaces that have the paint
scratched, damaged or worn should be re-coated with air
dry enamel paint. The pump should be stored in an upright
position.
Long Term Storage: Any storage time exceeding six
months is considered long term. In addition to the safe-
guards specified above, the impeller should be rotated
once a month to prevent the mechanical seals from be-
ing damaged, and the pump should be inspected. The
seal chamber oil should be drained and replaced prior to
commissioning. The pump should be stored in an upright
position.
8.5. ELECTRICAL INSTALLATION
8.5.1. GENERAL GUIDELINES
All electrical work shall be carried out under the supervi-
sion of an authorized, licensed electrician. The present
state adopted edition of the National Electrical Code
as well as all local codes and regulations shall be com-
plied with.
8.5.2. VERIFICATION OF POWER SUPPLY
Prior to making any electrical connections or applying pow-
er to the pump, compare the power supply available at the
pump station to the data on the unit‘s nameplate. Confirm
that both voltage and phase match between pump and
control panel. The voltage supplied at the pump shall be
+5 / -10% of the nameplate value, frequency shall be +
/ - 1% of the nameplate value, the voltage phase balance
shall be within 1% and the maximum corrected power
factor shall be 1.0.
8.5.3. POWER LEAD WIRING
HOMA pumps may be provided with 1 or more cables,
depending on motor horsepower and operating voltage.
Power leads L1, L2, & L3 may be provided as single con-
ductor, or as multiple conductors. Multiple conductor
configurations may use leads from separate cables, or
may use two conductors within one cable. Please refer
to wiring diagram in the appendix for specific connection
details.
The pump must be connected electrically through a motor
starter with proper circuit breaker protection in order to
validate warranty. Do not splice cables.
8.5.4. THERMAL SWITCH WIRING
Pumps are equipped with thermal switches embedded in
the stator windings which are normally closed, automat-
ically resetting switches. Switches will open when the
internal temperature rises above the design temperature,
and will close when the temperature returns to normal.
Thermal switches must be wired to a current regulated
control circuit in accordance with the NEC.
Identify thermal switch leads marked T1 and T3 in the
power or control cable.
The resistance across the leads will be 0.5 Ohms. Ther-
mal leads must be connected to the thermal overload
relay located in the control panel. Thermal switch leads
must be connected to validate warranty.
Note: All sizes of Class 1, Div. 1 pumps for hazardous
service must have thermal switch leads connected to
a current regulated control circuit in accordance with
NEC.
8.5.5. SEAL PROBE WIRING
The mechanical seal leak detector probe utilized in the
pump is a conductive probe which is normally open. The
intrusion of water into the seal chamber completes the
electrical circuit. Control panel provisions will sense this
circuit closure, and will provide indication or alarm func-
tions depending on the panel design. Either single or dual
wire systems may be provided. Single wire systems uti-
lize one energizing conductor, and the pump casing and
neutral lead as the ground or return portion of the circuit.
The dual wire systems utilize two separate conductors for
each leg of the circuit.
With either system, the seal probe leads must be wired
into a control circuit provided in the control panel. This
control circuit must energize the probe with a regulated
power source, and sense the closed circuit in event of
water intrusion Indication and alarm functions must also
be provided in the control circuit. Please see control panel
wiring diagram for seal probe connection points.
For Hazardous Area Classification Pumps, leak de-
tector circuit must be in conformance with applica-
ble NEC codes and regulations.
8.5.6. START / RUN CAPACITORS AND RELAYS:
All single phase motors require start and run capacitors
along with a start relay to operate. Capacitors and relays
must be sized for the specific motor.
Capacitors are sized based on ideal conditions.
The run capacitor may need to be resized to match the
available field voltage. Each cap kit shipped is supplied
with a wiring diagram and start up procedure.
8.5.7. Variable Frequency Drives
Special considerations must be taken when operating
pumps with variable frequency drives (inverters). The
inverter circuit design, horsepower required by pump, mo-
tor cooling system, power cable length, operating voltage,
and anticipated turndown ratio must be fully evaluated
during the design stage of the installation.
As a minimum, properly sized load reactors and filters
must be installed between the inverter and the pump
to protect the pump motor from damaging voltage
spikes.
Warranty coverage will not be provided on any pump mo-
tor that is operated with a variable frequency drive, unless
the load side of the inverter is properly isolated from the
pump.

ENGLISH | 19
9. Connection of pumps and mixers
Danger from electric current!
Incorrect working with electric current brings danger to life! All pumps with bare cable ends must be connected by a skilled
electrician.
9.1 Power cables
Pumps in Star 3-phase version
Cable identification Motor Terminal in control cabinet
U1 U1
V1 V1
W1 W1
U2 U2
V2 V2
W2 W2
Pumps in Direct start version
Cable identification Motor Terminal in control cabinet
UU1
VV1
WW1
9.2 Control cables
Depending on the design of the pump/agitator, it may be that no separate control cable is used. In this case monitoring
devices are run from the power cable.
Cable identification Motor Monitoring system
Monitoring in winding
T1 / T2 Temperature limiter (2 switches in series)
T1 / T4 Temperature controller (2 switches in series)
T1 / T2 / T3 Temperature limiter and controller
K1 / K2 PTC – Thermistor (3 thermistors in series)
PT1 / PT2
3 x PT100 individually installed
PT3 / PT4
PT6 / PT6
Bearings monitoring
P1 / P2 PT100 upper bearing
P3 / P4 PT100 lower bearing
Seal monitoring
S1 / S2 Seal monitoring in oil chamber
S3 / S4 Seal monitoring in connection compartment
S5 / S6 Seal monitoring in Motor compartment with 2 Electrodes
S7 / S8 Seal monitoring in Motor compartment with float switch
S9 / S10 Seal monitoring in Gearbox (Agitator)
S11 / S12 Seal monitoring in Leakage compartment (internal cooling)
Heating
H1 / H2 Heating system

20
Notizen / Notes