Xylem LOWARA e-SV Series User manual

Installation, Operation
and Maintenance Manual
e-SV Series
Multistage Vertical Pump Unit

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2 e-SV series - Installation, Operation and Maintenance Manual
Table of Contents
1Introduction and Safety .............................................................................................................................................5
1.1 Introduction.......................................................................................................................................................5
1.2 Safety ................................................................................................................................................................5
1.2.1 Danger levels and safety symbols.................................................................................................................5
1.2.2 User safety ....................................................................................................................................................6
1.2.3 Protection of the environment .....................................................................................................................6
1.2.4 Sites exposed to ionizing radiations .............................................................................................................6
2Handling and Storage.................................................................................................................................................7
2.1 Handling of the packed unit .............................................................................................................................7
2.2 Unit inspection upon delivery...........................................................................................................................7
2.3 Unit handling.....................................................................................................................................................8
2.4 Storage ..............................................................................................................................................................9
3Technical Description ..............................................................................................................................................11
3.1 Designation......................................................................................................................................................11
3.2 Data plate........................................................................................................................................................11
3.3 Names of the main components .....................................................................................................................14
3.4 Intended use....................................................................................................................................................14
3.5 Improper use ...................................................................................................................................................15
3.6 Use in water distribution networks for human consumption .........................................................................15
3.7 Special applications ........................................................................................................................................16
4Installation ...............................................................................................................................................................17
4.1 Precautions......................................................................................................................................................17
4.2 Mechanical installation ...................................................................................................................................17
4.2.1 Installation area ..........................................................................................................................................17
4.2.2 Permitted positions.....................................................................................................................................18
4.2.3 Installation on concrete foundation ...........................................................................................................18
4.2.4 Fastening of the unit...................................................................................................................................18
4.2.5 Reducing vibrations.....................................................................................................................................19
4.3 Hydraulic connection ......................................................................................................................................19
4.3.1 Guidelines for the hydraulic system ...........................................................................................................19
4.3.2 Flange forces and torques...........................................................................................................................21
4.4 Electrical connection ......................................................................................................................................22
4.4.1 Ground.........................................................................................................................................................22
4.4.2 Guidelines for electrical connection ..........................................................................................................22
4.4.3 Guidelines for the control electric panel ...................................................................................................23
4.4.4 Motor guidelines..........................................................................................................................................23
4.4.5 Operation with frequency converter ..........................................................................................................25
5Use and operation....................................................................................................................................................26

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e-SV series - Installation, Operation and Maintenance Manual 3
5.1 Precautions......................................................................................................................................................26
5.2 Filling - Priming...............................................................................................................................................27
5.2.1 Positive suction head installation...............................................................................................................27
5.2.2 Suction lift installation ...............................................................................................................................27
5.3 Checking the direction of rotation (three-phase motors)..............................................................................28
5.3.1 Wrong rotation direction ............................................................................................................................28
5.4 Start-up ...........................................................................................................................................................29
5.5 Stopping...........................................................................................................................................................30
6Maintenance ............................................................................................................................................................31
6.1 Precautions......................................................................................................................................................31
6.2 Maintenance every 4000 hours of operation, or every year ..........................................................................31
6.3 Long periods of inactivity ...............................................................................................................................31
6.4 Tightening torques of the threaded connections...........................................................................................32
6.5 Ordering spare parts .......................................................................................................................................32
7Troubleshooting .......................................................................................................................................................33
7.1 Precautions......................................................................................................................................................33
7.2 The unit does not start ...................................................................................................................................33
7.3 The differential protection device (RCD) is activated...................................................................................33
7.4 The thermal overload protection triggers or the fuses trip...........................................................................34
7.5 The thermal overload protection triggers......................................................................................................34
7.6 The unit runs but there is little or no flow rate.............................................................................................34
7.7 When switched off, the unit turns in the opposite direction ........................................................................35
7.8 The unit produces excessive noise and/or vibrations ....................................................................................35
7.9 The unit starts up too frequently (automatic start/stop) .............................................................................35
7.10 The unit never stops (automatic start/stop)..................................................................................................35
7.11 The unit is leaking...........................................................................................................................................37
7.12 The motor becomes excessively hot...............................................................................................................37
7.13 The frequency converter is in error mode or turned off ...............................................................................37
8Technical Information..............................................................................................................................................38
8.1 Operating environment...................................................................................................................................38
8.2 Permitted liquid temperatures for the mechanical seal................................................................................38
8.3 Maximum operating pressure..........................................................................................................................39
8.4 Maximum number of starts per hour ..............................................................................................................39
8.5 Protection class...............................................................................................................................................40
8.6 Electrical specifications..................................................................................................................................40
8.7 Permitted tolerances for the supply voltage .................................................................................................40
8.8 Noise level.......................................................................................................................................................40
8.9 Materials in contact with the liquid ...............................................................................................................41
8.10 Mechanical seal ...............................................................................................................................................41
9Disposal ....................................................................................................................................................................42
9.1 Precautions......................................................................................................................................................42
10 Declarations ........................................................................................................................................................43
10.1 Pump unit EC Declaration of Conformity (Original) .......................................................................................43

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10.2 EU Conformity Declaration (n. EMCD08).........................................................................................................43
10.3 Pump EC Declaration of Conformity (Original)...............................................................................................44
11 Warranty..............................................................................................................................................................45
11.1 Information......................................................................................................................................................45

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e-SV series - Installation, Operation and Maintenance Manual 5
1Introduction and Safety
1.1 Introduction
Purpose of this manual
This manual provides information on how to do the following in the correct manner:
Installation
Operation
Maintenance.
CAUTION:
This manual is an integral part of the unit. Make sure to have read and understood the manual
before installing the unit and putting it to use. The manual must always be made available to
the user, stored in the proximity of the unit, and well kept.
Supplementary instructions
The instructions and warnings of this manual apply to the standard unit as described in the sale
documentation. Special version pumps may be supplied with supplementary instruction
manuals. For situations not considered in the manual or in the sales document, contact Xylem
or the Authorised Distributor.
1.2 Safety
1.2.1 Danger levels and safety symbols
Before using the unit, the user must read, understand and comply with the indications of the
danger warnings in order to avoid the following risks:
Injuries and health hazards
Damage to the product
Unit malfunction.
Danger levels
Hazard level
Indication
DANGER:
It identifies a dangerous situation which, if not
avoided, causes serious injury, or even death.
WARNING:
It identifies a dangerous situation which, if not
avoided, may cause serious injury, or even
death.
CAUTION:
It identifies a dangerous situation which, if not
avoided, may cause small or medium level
injuries.
NOTICE:
It identifies a situation which, if not avoided,
may cause damage to property but not to
people.

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Complementary symbols
Symbol
Description
Electrical hazard
Magnetic hazard
Hot surface hazard
1.2.2 User safety
Strictly comply with current health and safety regulations.
WARNING:
This unit must be used only by qualified users. Qualified users are people able to recognise the
risks and avoid hazards during installation, use and maintenance of the unit.
Inexperienced users
WARNING:
For EU countries: this product may be used by children aged 8 years and above and persons
with reduced physical, sensory or mental capabilities, or who lack experience and knowledge,
provided that they are being supervised and have been instructed on how to use it safely, and
understand the hazards involved. Children must not play with the product. Cleaning and
maintenance must not be carried out by children without supervision.
WARNING:
For countries outside the EU: this product is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or who lack experience and
knowledge, unless they are being supervised and have been instructed on how to use it by a
person responsible for their safety. Children should be supervised to ensure that they do not
play with the product.
1.2.3 Protection of the environment
Disposal of packaging and product
Comply with the current regulations on sorted waste disposal.
Leaking of fluid
If the unit contains lubricating fluid, take appropriate measures to prevent the dispersion of
leaks into the environment.
1.2.4 Sites exposed to ionizing radiations
WARNING: Ionizing radiation hazard
If the unit has been exposed to ionizing radiations, implement the necessary safety measures
for the protection of people. If the unit needs to be despatched, inform the carrier and the
recipient accordingly, so that appropriate safety measures can be put in place.

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e-SV series - Installation, Operation and Maintenance Manual 7
2Handling and Storage
2.1 Handling of the packed unit
WARNING: Crushing hazard (limbs)
The unit and its components may be heavy: risk of crushing.
WARNING:
Always wear personal protective equipment.
WARNING:
Check the gross weight marked on the packaging.
WARNING:
Handle the unit in compliance with the current regulations on "manual load handling", to avoid
undesirable ergonomic conditions causing risks of back-spine injury.
WARNING:
Take appropriate measures during transport, installation and storage to prevent contamination
from external substances.
Depending on the model, the Manufacturer delivers the unit and its components in:
1. A cardboard box, or
2. A cardboard box with wooden base.
The type 2 packaging is intended for transport with a forklift truck; the lifting points are
indicated in the figure.
Figure 1: Packed product lifting points
2.2 Unit inspection upon delivery
Inspect the package
1. Check that quantity, descriptions and product codes match the order.
2. Check the packaging for any damage or missing components.
3. In case of immediately detectable damage or missing parts:
- accept the goods with reserve, indicating any findings on the transport document, or
- reject the goods, indicating the reason on the transport document.
EHM_M0014_A_ot
1 2

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8 e-SV series - Installation, Operation and Maintenance Manual
In both cases, promptly contact Xylem or the Authorised Distributor from whom the product
was purchased.
Unpacking and inspection of the unit
CAUTION: Cut and abrasion hazard
Always wear personal protective equipment.
1. Remove packing materials from the product.
2. Release the unit by removing the screws and/or cutting the straps, if fitted.
3. Check the unit for integrity and to make sure that there are no missing components.
4. In case of damage or missing components, promptly contact Xylem or the Authorised
Distributor.
2.3 Unit handling
The unit must be harnessed and lifted as shown in the figure.
Figure 2: Lifting of the unit
Type of harness
Motor power, kW
1
< 5,5
2
≥ 5.5
WARNING:
Use cranes, ropes, lifting straps, hooks and clasps that comply with current regulations and
that are suitable for the specific use.
NOTICE:
Make sure that the harnessing does not hit and/or damage the unit
ESV_M0001_A_ot
1
2

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e-SV series - Installation, Operation and Maintenance Manual 9
WARNING:
Lift and handle the unit slowly to avoid stability issues.
WARNING:
During handling, make sure to avoid injury to people and animals, and/or damage to property.
WARNING:
Do not use eyebolts screwed on the motor for handling the unit.
The eyebolts screwed on the motor must only be used to move the unit upright from its
horizontal position on the ground, and only for as long as strictly necessary. See the figure
below.
Figure 3: Use of eyebolts
2.4 Storage
Storage of the packed unit
The unit must be stored:
In a covered and dry place
Away from heat sources
Protected from dirt
Protected from vibrations
At an ambient temperature between -5°C and +40°C (23°F and 140°F), and relative
humidity between 5% and 95%.
ESV_M0002_A_sc

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10 e-SV series - Installation, Operation and Maintenance Manual
NOTICE:
Do not place heavy loads on top of the unit.
NOTICE:
Protect the unit from collisions.
Long-term storage of the unit
1. Follow the same instructions for the storage of the packed unit.
2. Empty the unit by removing the drain plug. This operation is essential in exceptionally cold
environments; any residual liquid in the unit could otherwise have an adverse effect on its
condition and performance.
Figure 4: Drain plug
For further information about preparation for long-term storage, please contact Xylem or the
Authorised Distributor.

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e-SV series - Installation, Operation and Maintenance Manual 11
3Technical Description
3.1 Designation
Multistage vertical centrifugal pump unit, non-self-priming.
The product may be supplied as full pump unit (pump and motor), or as pump only.
3.2 Data plate
The data plate is a label showing:
The main unit details
Identification code.
Figure 5: Data plate
Position
number
Description
Position
number
Description
1
Pump or pump unit type
8
Flow rate range
2
Pump or pump unit code
9
Head range
3
Mechanical seal materials
identification code
10
Speed
4
O-ring material identification code
11
Rated or maximum power
5
Maximum operating pressure
12
Minimum efficiency index (MEI) (EU
Regulation no. 547/2012)
6
Maximum liquid operating
temperature
13
Serial number + manufacturing date
7
Minimum liquid operating temperature
14
Weight

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12 e-SV series - Installation, Operation and Maintenance Manual
Figure 6: Identification code for models 1, 3, 5, 10, 15, 22SV
Position
number
Description
Notes
1
Rated flow rate
22 = m3/h
2
Series name
SV
3
Motor operation
Empty = standard
H = with Hydrovar®
X = other drivers
E = e-SM
4
Number of impeller
10 = 10 impellers
5
Standard materials
F = AISI 304, round flanges (PN 25)
T = AISI 304, oval flanges (PN 16)
R = AISI 304, overlapping ports, round flanges (PN 25)
N = AISI 316, round flanges (PN 25)
V = AISI 316, Victaulic® couplings (PN 25)
P = AISI 316, Victaulic® couplings (PN 40)
C = AISI 316, DIN 32676 Clamp couplings (PN 25)
K = AISI 316, DIN 11851 thread couplings (PN 25)
X = custom version
6
Special versions
Empty = standard
L = Low NPSH, round flanges, PN 25 (versions F, N, R)
H = high temperature 150°C, round flanges, PN 25
(versions F, N)
B = high temperature 180°C, round flanges, PN 25
(version N)
E = passivated and electropolished (versions N, V, C, K,
P)
W = high temperature 150° and low NPSH (versions F, N)
Y = high temperature 180° and low NPSH (version N)
U = passivated, electropolished and low NPSH (versions
N, V, C, K, P)
I = high temperature 150°, passivated and electropolished
(version N)
S = high temperature 180°, passivated and
electropolished (version N)
A = high temperature 150°, passivated, electropolished
and low NPSH (version N)
D = high temperature 180°, passivated, electropolished
and low NPSH (version N)
X = custom version
7
Motor rated power
kW X 10
8
Number of poles
Empty = 2 poles
4 = 4 poles
P = e-SM
9
Frequency
Empty = 50 Hz
6 = 60 Hz
0 = e-SM
10
Phase
Empty = pump only
M = Single-phase
T = Three-phase
11
Other information
Empty = standard version
Other = see technical catalogue
EHM_M0005_A_sc
2 2 S V 1 0 F L 1 1 0 T
113 1 15 16 18 19 110 111 1 2 4 7

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e-SV series - Installation, Operation and Maintenance Manual 13
Figure 7: Identification code for models 33, 46, 66, 92, 125SV
Position
number
Description
Notes
1
Rated flow rate
125 = m3/h
2
Series name
SV
3
Motor operation
Empty = standard
H = with Hydrovar®
X = other drivers
4
Number of impeller
8/2A = 8 impellers, 2 of which with a smaller external
diameter, type A or B
5
Standard materials
G = AISI 304/Cast iron, round flanges (PN16/25/40
depending on model)
N = AISI 316, round flanges (PN16/25/40 depending on
model)
P = AISI 316, round flanges (PN 40)
X = custom version
6
Special versions
Empty = standard
L = Low NPSH, round flanges, PN 25 (versions G, N)
H = high temperature 150°C, round flanges, PN 25
(versions G, N)
B = high temperature 180°C, round flanges, PN 25
(version N)
E = passivated and electropolished ( version N)
W = high temperature 150° and low NPSH (versions G,
N)
Y = high temperature 180° and low NPSH (version N)
U = passivated, electropolished and low NPSH ( version
N)
I = high temperature 150°, passivated and electropolished
(version N)
S = high temperature 180°, passivated and
electropolished (version N)
A = high temperature 150°, passivated, electropolished
and low NPSH (version N)
D = high temperature 180°, passivated, electropolished
and low NPSH (version N)
X = custom version
7
Motor rated power
kW X 10
8
Number of poles
Empty = 2 poles
4 = 4 poles
9
Frequency
Empty = 50 Hz
6 = 60 Hz
10
Phase
Empty = pump only
M = Single-phase
T = Three-phase
11
Other information
Empty = standard version
Other = see technical catalogue
Marks of safety approval
For products with a mark of electrical-related safety approval such as IMQ, TUV, IRAM, etc.,
the approval refers exclusively to the pump unit.
EHM_M0006_A_sc
1 2 5 S V 8 / 2 A G L 5 5 0 4 T
12 1 1 1 111
1 3 65 1 1 1 4 7 8 9 10

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3.3 Names of the main components
Figure 8: Main components
Position
number
Description
Position
number
Description
1
Pump body
10
Mechanical seal
2
Impeller
11
Elastomers
3
Diffuser
12
Coupling protection
4
Outer sleeve
13
Shaft sleeve and bush
5
Shaft
14
Fill and drain plug
6
Motor adapter
15
Tie rod
7
Base plinth
16
Wear ring
8
Coupling
17
Seal housing
9
Disk
18
Motor
3.4 Intended use
Pressure boosting and water supply systems
Washing and cleaning sector, including washing of vehicles
Circulation of hot and cold liquids, for example water or water & glycol, for heating, cooling
and air conditioning systems
Water treatment applications
Transfer of moderately aggressive liquids
Irrigation systems
Firefighting systems.
Pumped liquids
Hot water
Cold water
Clean liquids
Fluids chemically and mechanically compatible with the materials of the pump unit.
Comply with the operating limits in Technical References.
111
11
14
19
111
16
117
115
114
17
110
112
18
114
12
116
13
15
116
ESV_M0007_A_ds
118

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e-SV series - Installation, Operation and Maintenance Manual 15
3.5 Improper use
WARNING:
The unit was designed and built for the use described in the Intended Use section. Any other
uses are prohibited, as they could compromise the safety of the user and the efficiency of the
unit itself.
DANGER:
It is prohibited to use this unit to pump flammable and/or explosive liquids.
DANGER: Potentially explosive atmosphere hazard
It is prohibited to start the unit in environments with potentially explosive atmospheres or with
combustible dusts
Examples of improper use
Pumping liquids not compatible with the construction materials of the unit
Pumping hazardous, toxic, explosive, flammable or corrosive liquids
Pumping drinking liquids other than water, for example wine or milk
Pumping liquids containing abrasive, solid, or fibrous substances
Using the unit for flow rates exceeding the flow rate indicated in the data plate.
Examples of improper installation
Explosive and corrosive atmospheres
Areas where the air temperature is very high and/or there is poor ventilation
Outdoor without protection from weather conditions.
3.6 Use in water distribution networks for human consumption
If the unit is intended for water supply to people and/or animals:
WARNING:
It is prohibited to pump drinking water after use with other fluids.
WARNING:
Take appropriate measures during transport, installation and storage to prevent contamination
from external substances.
WARNING:
Remove the unit from its packaging just before installation to prevent contamination from
external substances.
WARNING:
After installation, run the unit for a few minutes with several users open in order to wash the
inside of the system.

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16 e-SV series - Installation, Operation and Maintenance Manual
3.7 Special applications
Contact Xylem or the Authorised Distributor in the following cases:
If liquids with a density and/or viscosity value exceeding that of water (such as water and
glycol mixture) must be pumped
If the pumped liquid is chemically treated (for example softened, deionized, demineralized
etc.)
Any situations different from those described, relating to the nature of the liquid
Install the unit in the horizontal position.

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e-SV series - Installation, Operation and Maintenance Manual 17
4Installation
4.1 Precautions
Make sure you have read and understood the safety instructions in the Introduction and Safety
chapter before starting work.
DANGER: Potentially explosive atmosphere hazard
It is prohibited to start the unit in environments with potentially explosive atmospheres or with
combustible dusts
WARNING:
Always wear personal protective equipment.
WARNING:
Always use suitable working tools.
WARNING:
When selecting the place of installation and connecting the unit to the hydraulic and electric
power supplies, strictly comply with current regulations.
When connecting the unit to a public or private aqueduct, or to a well for the supply of water
for human and/or animal consumption:
WARNING:
It is prohibited to pump drinking water after use with other fluids.
WARNING:
Remove the unit from its packaging just before installation to prevent contamination from
external substances.
WARNING:
Observe all the provisions of the authorities and companies concerned.
4.2 Mechanical installation
Install the unit on a concrete or metal foundation base sufficiently strong to ensure permanent
and rigid support.
4.2.1 Installation area
1. Place the unit in a raised position in relation to the floor.
2. Make sure that any leaks will not cause flooding to the installation area or submerge the
unit.
3. Comply with the provisions of the Operating environment section.
Air clearance between a wall and the motor fan grille
To ensure suitable ventilation: ≥ 100 mm
To permit inspection and removal of the motor: ≥ 300 mm.

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18 e-SV series - Installation, Operation and Maintenance Manual
If the space available is any less, refer to the technical catalogue.
4.2.2 Permitted positions
Figure 9: Unit position
4.2.3 Installation on concrete foundation
Requirements
The concrete must have a compression resistance of C12/15 and meet the requirements of
exposure class XC1 according to EN 206-1
Sizes must be appropriate for the sizes of the unit support plate. See the section: Fastening
of the unit
The foundation weight must be ≥ 1.5 times the unit weight (≥ 5 times the weight of the unit
if a quieter operation is required)
The surface should be as flat and level as possible.
4.2.4 Fastening of the unit
Figure 10: Fastening of the unit
ESV_M0008_A_sc

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e-SV series - Installation, Operation and Maintenance Manual 19
Table 1: Sizes of the anchoring bolts
Model
L1, mm
L2, mm
L3, mm
L4, mm
Ø, mm
Bolt size
1, 3, 5SV
100
180
150
210
13
M12
10,15, 22SV
130
215
185
245
33SV
170
240
220
290
15
M14
46, 66, 92SV
190
265
240
315
125SV
275
380
330
450
19
M18
1. If present, remove the plugs covering the suction and discharge ports.
2. Place the unit on a level and sturdy surface.
3. Using a spirit level, make sure that the unit is level.
4. Align the suction and discharge ports to their piping.
5. Secure the unit using 4 bolts with resistance class 8.8 or higher; see the table.
Also see the Vibration reduction and the Hydraulic connection sections.
4.2.5 Reducing vibrations
The motor and the flow of liquids in the pipes may cause vibrations, which can be exacerbated
by incorrect installation of the unit and pipes. See the Hydraulic connection section.
4.3 Hydraulic connection
DANGER:
All the hydraulic and electrical connections must be completed by a technician possessing the
technical-professional requirements outlined in the current regulations.
WARNING:
Piping must be sized to ensure safety at the maximum operating pressure.
WARNING:
Install appropriate seals between the unit couplings and the pipings.
4.3.1 Guidelines for the hydraulic system
Refer to the representative hydraulic diagrams; see the figures below.
Figure 11: Positive suction head installation diagram
EHM_M0016_A_sc
11
55
6
8
74 2 2 4
44
9
3
Q
1
12

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20 e-SV series - Installation, Operation and Maintenance Manual
Figure 12: Suction lift installation diagram
Position
number
Description
Position
number
Description
1
Pump unit
8
Electrode probes or float
2
Anti-vibration joint
9
Automatic relief valve
3
Overpressure safety on-off valve
10
Foot check valve with filter
4
On-off valve
11
Electric panel
5
Pressure gauge
12
Pressurised circuit
6
Minimum pressure switch
13
Filling on-off valve
7
Check valve
1. Do not install the unit at the lowest point of the system, to avoid the accumulation of
sediments.
2. Install an automatic relief valve at the highest point of the system to eliminate air bubbles.
3. Remove any welding residues, deposits and impurities in the pipes that could damage the
unit; install a filter if necessary.
4. Support the pipes independently to prevent them from weighing on the unit.
5. To reduce the transmission of vibrations between the unit and the system and vice versa,
install:
anti-vibration joints on the suction and discharge sides of the unit
dampers between the unit and the surface on which it is installed.
6. In order to reduce flow resistance, the pipe on the suction side must be:
As short and as straight as possible
For the section connected to the unit, straight and without bottlenecks, covering a
length equal to at least six times the diameter of the suction port
Wider than the suction port; if necessary, install an eccentric reducer that is horizontal
on top
Without bends; if this cannot be avoided, bends of a radius as wide as possible
Without traps and 'goosenecks'
With on-off valves with a low specific flow resistance.
7. Install a check valve on the discharge side to prevent the liquid from flowing back into the
pump unit when this is at standstill.
EHM_M0017_A_sc
7
11
5
4
4 2 2
5
4
8
10
3
Q
4
9
1
13