Page 1
Installation, Operation and
Maintenance Manual
e-HM Series
Multistage Horizontal Pump Unit
Page 2
Page 3
Table of Contents
1 Introduction and Safety..............................................................................................................3
1.1 Introduction.......................................................................................................................... 3
1.1.1 Purpose of this manual.................................................................................................3
1.1.2 Supplementary instructions.........................................................................................3
1.2 Safety..................................................................................................................................... 3
1.2.1 Danger levels and safety symbols.............................................................................. 3
1.2.2 User safety......................................................................................................................4
1.2.3 Protection of the environment.................................................................................... 4
1.2.4 Sites exposed to ionizing radiations...........................................................................5
2 Transport and storage................................................................................................................6
2.1 Handling of the packed unit............................................................................................... 6
2.2 Unit inspection upon delivery............................................................................................ 7
2.2.1 Inspect the package..................................................................................................... 7
2.2.2 Unpacking and inspection of the unit........................................................................ 7
2.3 Unit handling........................................................................................................................ 7
2.4 Storage.................................................................................................................................. 8
2.4.1 Storage of the packed unit.......................................................................................... 8
2.4.2 Long-term storage of the unit..................................................................................... 8
Table of Contents
3 Product Description....................................................................................................................9
3.1 Designation...........................................................................................................................9
3.2 Data plate..............................................................................................................................9
3.2.1 Marks of safety approval............................................................................................11
3.3 Denomination of the main components.........................................................................12
3.4 Intended use.......................................................................................................................13
3.4.1 Pumped liquids...........................................................................................................13
3.5 Improper use......................................................................................................................14
3.5.1 Examples of improper use.........................................................................................14
3.5.2 Examples of improper installation............................................................................14
3.6 Use in water distribution networks for human consumption....................................... 14
4 Installation................................................................................................................................. 16
4.1 Precautions......................................................................................................................... 16
4.2 Mechanical installation......................................................................................................16
4.2.1 Installation area...........................................................................................................16
4.2.2 Permitted positions.................................................................................................... 17
4.2.3 Fastening of the unit...................................................................................................17
4.2.4 Reducing vibrations....................................................................................................17
4.3 Hydraulic connection........................................................................................................ 18
4.3.1 Guidelines for the hydraulic system......................................................................... 18
4.4 Electrical connection......................................................................................................... 20
4.4.1 Ground.........................................................................................................................20
4.4.2 Guidelines for electrical connection........................................................................ 20
4.4.3 Guidelines for the electric panel...............................................................................20
4.4.4 Motor guidelines.........................................................................................................21
4.4.5 Operation with frequency converter........................................................................22
5 Operation.................................................................................................................................. 23
5.1 Precautions......................................................................................................................... 23
e-HM Series Installation, Operation and Maintenance Manual 1
Page 4
Table of Contents
5.2 Filling - Priming.................................................................................................................. 24
5.2.1 Positive suction head installation..............................................................................24
5.2.2 Suction lift installation................................................................................................ 24
5.3 Checking the direction of rotation (three-phase motors).............................................25
5.3.1 Wrong rotation direction........................................................................................... 25
5.4 Start-up................................................................................................................................26
5.4.1 Settling of the mechanical seal................................................................................. 26
5.5 Stopping............................................................................................................................. 27
6 Maintenance..............................................................................................................................28
6.1 Precautions......................................................................................................................... 28
6.2 Maintenance every 4000 hours of operation or every year......................................... 28
6.3 Long periods of inactivity..................................................................................................29
6.4 Ordering spare parts.........................................................................................................29
7 Troubleshooting....................................................................................................................... 30
7.1 Precautions......................................................................................................................... 30
7.2 The unit does not start...................................................................................................... 30
7.3 The differential protection device (RCD) is activated....................................................30
7.4 The motor thermal overload protection or the fuses trigger when the unit starts....30
7.5 The thermal motor protection trips................................................................................. 31
7.6 The unit runs but there is little or no flow rate............................................................... 31
7.7 When turned off, the unit turns in the opposite direction............................................31
7.8 The unit produces excessive noise and/or vibrations...................................................31
7.9 The unit starts up too frequently (automatic start/stop)............................................... 32
7.10 The unit never stops (automatic start/stop)..................................................................32
7.11 The unit is leaking............................................................................................................32
7.12 The motor becomes excessively hot.............................................................................33
7.13 The frequency converter (if present) is in error mode or turned off.........................33
8 Technical references................................................................................................................ 34
8.1 Operating environment.................................................................................................... 34
8.1.1 Temperature................................................................................................................34
8.1.2 Relative air humidity................................................................................................... 34
8.1.3 Elevation...................................................................................................................... 34
8.2 Temperature of pumped liquid....................................................................................... 34
8.3 Operating pressure........................................................................................................... 35
8.4 Maximum hourly start-ups................................................................................................ 35
8.5 Protection class.................................................................................................................. 35
8.6 Electrical specifications..................................................................................................... 35
8.7 Permitted tolerances for the supply voltage.................................................................. 35
8.8 Noise level.......................................................................................................................... 35
8.9 Materials..............................................................................................................................36
9 Disposal..................................................................................................................................... 37
9.1 Precautions......................................................................................................................... 37
10 Declarations............................................................................................................................ 38
10.1 EC Declaration of Conformity (Original).......................................................................38
10.2 EU Conformity Declaration (n. EMCD08)..................................................................... 38
11 Warranty.................................................................................................................................. 39
11.1 Information....................................................................................................................... 39
2 e-HM Series Installation, Operation and Maintenance Manual
Page 5
1 Introduction and Safety
1.1 Introduction
1.1.1 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.
1.1.2 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 Introduction and Safety
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 unit
• Unit malfunction.
Danger levels
Hazard level Indication
DANGER:
WARNING:
CAUTION:
It identifies a dangerous situation which, if not avoided,
causes serious injury, or even death.
It identifies a dangerous situation which, if not avoided,
may cause serious injury, or even death.
It identifies a dangerous situation which, if not avoided,
may cause small or medium level injuries.
NOTICE:
e-HM Series Installation, Operation and Maintenance Manual 3
It identifies a situation which, if not avoided, may cause
damage to property but not to people.
Page 6
1 Introduction and Safety
Complementary symbols
Symbol Description
Electrical Hazard:
Electrical hazard
1.2.2 User safety
Inexperienced users
CAUTION:
Hot Surface:
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.
WARNING:
For EU countries: this appliance can be used by children aged from 8 years and above
and persons with reduced physical, sensory or mental capabilities or lack of experience
and knowledge, provided that they are being supervised and have been instructed on the
use of the appliance in a safe way and understand the hazards involved. Children shall not
play with the appliance. Cleaning and user maintenance shall not be carried out by
children without supervision.
Magnetic hazard
Hot surface hazard
WARNING:
For countries outside the EU: this appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they are being supervised and have been instructed on the use of the
appliance by a person responsible for their safety. Children should be supervised to
ensure that they do not play with the appliance.
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.
4 e-HM Series Installation, Operation and Maintenance Manual
Page 7
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.
1 Introduction and Safety
e-HM Series Installation, Operation and Maintenance Manual 5
Page 8
EHM_M0014_A_ot
1
2
2 Transport and storage
2 Transport 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
6 e-HM Series Installation, Operation and Maintenance Manual
Page 9
2.2 Unit inspection upon delivery
EHM_M0015_A_ot
2.2.1 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.
In both cases, promptly contact Xylem or the Authorised Distributor from whom the
product was purchased.
2.2.2 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 Transport and storage
2.3 Unit handling
The unit must be harnessed and lifted as shown in the figure.
Figure 2: Lifting of the unit
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.
e-HM Series Installation, Operation and Maintenance Manual 7
Page 10
EHM_M0009_A_ph
2 Transport and storage
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.
2.4 Storage
2.4.1 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 -40°C and +60°C (-40°F and 140°F), and relative
humidity between 5% and 95%.
NOTICE:
Do not place heavy loads on top of the unit.
NOTICE:
Protect the unit from collisions.
WARNING:
Take appropriate measures during transport, installation and storage to prevent
contamination from external substances.
2.4.2 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 3: Drain plug
For further information about preparation for long-term storage, please contact Xylem or
the Authorised Distributor.
8 e-HM Series Installation, Operation and Maintenance Manual
Page 11
3 Product Description
11
12 13 14
15 16 17 18
19 110
111 112 113
114
115
EHM_M0003_A_sc
3.1 Designation
Multistage horizontal centrifugal pump unit with threaded ports, non-self-priming.
3.2 Data plate
The data plate is a label showing:
• The main unit details
• Identification code
3 Product Description
Figure 4: Data plate
Position
number
1 Head range
2 Flow rate
3 Pump unit type
4 Protection degree
5 Frequency
6 Power consumption
7 Serial number (date+progressive number)
8 Pump unit code
9 Maximum temperature of pumped liquid (for usage in compliance with EN 60335-2-41)
10 Maximum ambient operating temperature
11 Maximum operating pressure
12 Minimum head
13 Weight
14 Electrical data
15 Maximum temperature of pumped liquid (for usage outside the scope of EN 60335-2-41)
Description
e-HM Series Installation, Operation and Maintenance Manual 9
Page 12
11
EHM_M0004_A_sc
1 0 H M E 0 3 S 1 5 M 0 2 V B E X X X / _
12
13
14 15 16
17 18 19 110
111
112
113
114 115
3 Product Description
Figure 5: Identification code
Position
Description Notes
number
1 Rated flow rate 10 = m³/h
2 Series name HM
3 Motor operation Empty = standard asynchronous motor
H = with Hydrovar
®
X = other drivers
E = e-SM
4 Number of
03 = 3 impellers
impeller
5 Material P = AISI 304 stainless steel with Noryl™ impellers
S = AISI 304 stainless steel
S = AISI 316 stainless steel
6 Motor rated
kW x 10
power
7 Phase M = Single-phase
T = Three-phase
8 Power supply
voltages
50 Hz standard
asynchronous motor:
5H = 1x220-240V
5D = 1x110-120V
5R =
3x220-240/380-415V
5V =
3x380-415/660-690V
5P =
3x200-208/346-360V
5S =
3x255-265/440-460V
5T =
3x290-300/500-525V
5W = 3x440-460/-V
5Z1 = 3x500-525/-V
60 Hz standard
asynchronous motor:
6F = 1x220-230V
6B = 1x110-115V
6C = 120-127V
6E = 1x200-210V
6P =
3x220-230/380-400V
6R =
3x255-277/440-480V
6V = 3x440-480/-V
6U =
3x380-400/660-690V
6L =
3x110-115/190-200V
6N =
3x200-208/346-360V
6T =
3x330-346/575-600V
6Z2 = 3x575/-V
9 Mechanical seal
rotating part
10 Mechanical seal
fixed part
Q = Silicon carbide(Q1)
V = Aluminum oxide (ceramic)
Q = Silicon carbide(Q1)
B = Resin impregnated carbon
Power supply e-SM:
02 = 1x208-240V
04 = 3x380-460V
05 =
3x208-240/380-460V
Asynchronous bifrequency motor:
BR = 3x230/400V 50Hz
3x265/460 V 60 Hz
BV = 3x400/690V 50Hz
3x460/-V 60Hz
1
For uses outside the scope of EN 60335-2-41
2
For uses outside the scope of EN 60335-2-41
10 e-HM Series Installation, Operation and Maintenance Manual
Page 13
3 Product Description
Position
Description Notes
number
11 Elastomers E = EPDM
V = FPM
K = FFPM (Kalrez®)
12 General
characteristics
Empty = none
A = Schuko plug + 3 m cable
B = British standard plug + 2 m cable
A = Australian standard plug + 2 m cable
D = Documents or certificates on specific request
E = Passivated and electro-polished
F = Motor oversized by 2 sizes
L = Seal housing + locking pin
V = Air relief valve
Z = other
13 General
characteristics
Empty = none
P = PTC in the coil
S = Condensation heater
D = Without condensation drain plugs
U = UL approval (cURus)
F = Mechanical seal internal flushing
Z = Other, or several combined characteristics
14 Connections3Null = Threaded
V = Victaulic
®
Z = Other, or several combined characteristics
15 Null = None
Letter assigned by the manufacturer
Other = see technical catalogue
3.2.1 Marks of safety approval
The presence of an electric safety approval mark, for example IMQ, TUV, IRAM, only refers
to the pump unit.
3
In case of no further special configuration characters on the right, this character will be nil, otherwise it will be “X”
e-HM Series Installation, Operation and Maintenance Manual 11
Page 14
EHM_M0001_A_ds
12
7
8
6
9
10
3
2
1
4
11
5
18
19
3 Product Description
3.3 Denomination of the main components
Figure 6: Pump unit with close-coupled body
Position
number
Description Position
number
Description
1 Pump body 8 Elastomers
2 Impeller 9 Filling plug
3 Diffuser 10 Wear ring
4 Pump shaft 11 Drain plug
5 Motor adapter 12 Motor
6 Seal housing 18 Suction port
7 Mechanical seal 19 Discharge port
12 e-HM Series Installation, Operation and Maintenance Manual
Page 15
EHM_M0002_A_ds
2
12
5
7
8
11
9
3
6
17
13
14
15
16
10
4
18
19
3 Product Description
Figure 7: Pump unit with body with sleeve
Position
number
2 Impeller 11 Drain plug
3 Diffuser 12 Motor
4 Pump shaft 13 Shaft sleeve and bush
5 Motor adapter 14 Head
6 Seal housing 15 Ring with foot
7 Mechanical seal 16 Tie rod
8 Elastomers 17 Outer sleeve
9 Filling plug 18 Suction port
3.4 Intended use
10 Wear ring 19 Discharge port
• 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
• Handling of moderately aggressive liquids.
Description Position
number
Description
3.4.1 Pumped liquids
• Hot water
• Cold water
e-HM Series Installation, Operation and Maintenance Manual 13
Page 16
3 Product Description
• Clean liquids
• Fluids chemically and mechanically compatible with the materials of the pump unit.
Observe the operating limits in Technical references on page 34.
3.5 Improper use
WARNING:
The unit was designed and built for the use described in the section Intended Use. Any
other use is prohibited, as it 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.
3.5.1 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.
3.5.2 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.
14 e-HM Series Installation, Operation and Maintenance Manual
Page 17
3 Product Description
WARNING:
After installation, run the unit for a few minutes with several users open in order to wash
the inside of the system.
e-HM Series Installation, Operation and Maintenance Manual 15
Page 18
4 Installation
4 Installation
4.1 Precautions
Make sure you have read and understood the safety instructions in the Introduction and
Safety chapter before starting work.
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
4.2.1 Installation area
• If possible, place the unit in a raised position in relation to the floor.
• Make sure that any leaks will not cause flooding to the installation area or submerge
the unit.
• Observe the instructions given in Operating environment on page 34.
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. If the space available is any
less, refer to the technical catalogue.
16 e-HM Series Installation, Operation and Maintenance Manual
Page 19
4.2.2 Permitted positions
EHM_M0005_A_sc
EHM_M0013_A_ph
A
B
Figure 8: Unit position
4.2.3 Fastening of the unit
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. Fasten the units using bolts (4 or 6 depending on the model), tightening at a torque of
10 Nm (88 lbf-in).
4 Installation
NOTICE:
Only for models with body with sleeve, if the temperature of the pumped liquid exceeds
50°C (122°F), only fasten bolts A; see the figure below.
Figure 9: Fastening of the unit
4.2.4 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 Hydraulic connection on
page 18.
e-HM Series Installation, Operation and Maintenance Manual 17
Page 20
EHM_M0016_A_sc
11
5
5
6
8
74 2 2 4
4
4
9
3
Q
1
12
EHM_M0017_A_sc
7
11
5
4
4 2 2
5
4
8
10
3
Q
4
9
1
13
4 Installation
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 10: Positive suction head installation diagram
Figure 11: Suction lift installation diagram
18 e-HM Series Installation, Operation and Maintenance Manual
Page 21
EHM_M0008_A_sc
4 Installation
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 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.
8. Install a pressure gauge (or a vacuum pressure gauge, in the case of suction lift
installation) on the suction side, and a pressure gauge on the discharge side, for
checking the actual operating pressure of the pump unit.
9. To exclude the unit from the system for the purpose of maintenance, install:
– An on-off valve on the suction side
– An on-off valve on the discharge side, downstream of the check valve and pressure
gauge, also useful for regulating the flow rate.
10.On the suction side, install a device to prevent the absence of liquid (float or probes),
or a minimum pressure device.
11.Sufficiently submerge the end of the suction pipe in the liquid, in order to prevent any
air from penetrating through the suction vortex when the level is at the minimum.
12.In case of suction lift installation, the suction pipe must have an increasing slope
towards the unit exceeding 2%; to avoid air pockets; also install:
e-HM Series Installation, Operation and Maintenance Manual 19
Page 22
4 Installation
– A foot valve that guarantees full opening (full section)
– A filling on-off valve to facilitate the removal of the air and priming.
4.4 Electrical connection
DANGER:
All the hydraulic and electrical connections must be completed by a technician
possessing the technical-professional requirements outlined in the current regulations.
DANGER: Electrical hazard
Before starting work, check that the unit is unplugged and that the pump unit, the control
panel and the auxiliary control circuit cannot restart, even unintentionally.
4.4.1 Ground
DANGER: Electrical hazard
Always connect the external protection conductor (ground) to the ground terminal before
attempting to make any other electrical connections.
DANGER: Electrical hazard
Connect all the electrical accessories of the pump unit and motor to the ground.
DANGER: Electrical hazard
Check that the external protection conductor (ground) is longer than the phase
conductors; In case of accidental disconnection of the unit from the phase conductors, the
protection conductor must be the last one to detach itself from the terminal.
DANGER: Electrical hazard
Install suitable systems for protection against indirect contact, in order to prevent lethal
electric shocks.
4.4.2 Guidelines for electrical connection
1. Check that the electrical leads are protected against:
– High temperature
– Vibrations
– Collisions.
2. Check that the power supply line is provided with:
– A short circuit protection device of appropriate size
– A mains isolator switch with a contact gap of at least 3 mm.
4.4.3 Guidelines for the electric panel
NOTICE:
The electric panel must match the ratings on the unit data plate. Improper combinations
could damage the motor.
20 e-HM Series Installation, Operation and Maintenance Manual
Page 23
1. The electric panel must protect the motor against overloading and short circuits; install
EHM_M0006_A_sc
1~
3~
A
B
A
B
a suitable device (thermal relay or overload cut-out switch; see the table)
2. Fit the electric panel with a system for protection against dry running to which a
pressure switch (or float switch, probes, or other suitable devices) must be connected.
3. Install these devices on the suction side:
– A pressure switch, in the case of connection to the mains water supply
– A float switch or probes, in the case of liquid drawn from a tank or basin.
4. When thermal relays are used, the type sensitive to phase failure is recommended.
4.4.4 Motor guidelines
Table 1: Motor protection devices
Pump unit Protection
Single phase standard
≤ 1.5 kW
• Automatic reset thermal-ampere protection, in-built (motor
protector)
• From short circuit, to be supplied by the installer4.
Three-phase and
single-phase
5
• Thermal, must be supplied by the installer
• Short circuit, must be supplied by the installer.
4 Installation
WARNING: Injuries hazard
The unit, equipped with a single-phase motor with automatic reset thermal overload
protection, could restart inadvertently after it has cooled down: risk of physical injury.
1. Open the terminal box cover.
2. Connect the power supply conductor; see the figure below, or the wiring diagram
shown inside the terminal box cover.
3. Connect the protection conductor (ground), making sure that it is longer than the
phase conductors.
4. Connect the phase leads.
5. Close the terminal box cover and tighten all the screws and cable glands.
Figure 12: Electrical connection and tightening torques
4
aM fuses (motor start-up), or thermal magnetic switch with C curve and Icn ≥ 4.5 kA, or other similar device
5
Trip class 10 A overload thermal relay + aM fuses (motor starting), or start class 10 A motor protection thermal magnetic switch
e-HM Series Installation, Operation and Maintenance Manual 21
Page 24
4 Installation
Wrench [mm] M4 M5 M6 M8 M10 -
Tightening
1,2 / 11 2,5 / 22 4,0 / 35 8,0 / 71 15,0 / 133 1,2 / 11
torque [Nm] /
[lbf·in]
Motor without automatic reset thermal overload protection
1. If the motor is used with full load, then set the value to the nominal current value on
the data plate of the pump unit.
2. If the motor is used with partial load, then set the value of the operating current
measured with a current pincer.
3. For three-phase motors with star-delta starting system, set the thermal relay
downstream of the switching circuit at 58% of the rated or operating current.
4.4.5 Operation with frequency converter
The three-phase motors can be connected to a frequency converter for speed control.
• The converter exposes the insulation of the motor to a greater load determined by the
length of the connecting cable: observe the requirements of the Manufacturer of the
frequency converter
• For applications requiring silent operation, install an outlet filter between the motor
and the converter; a sinusoidal filter can reduce the noise even further
• The bearings of the motors, from size 315 S/M and up, are exposed to the risk of
harmful currents: use electrically insulated bearings.
• The conditions of installation must guarantee protection against voltage peaks
between the terminals and/or dV/dt in the table:
A B
Motor size Voltage peak [V] dV/dt [V/µs]
up to 90R (500 V) > 650 > 2200
from 90R to 180R > 1400 > 4600
over 180R > 1600 > 5200
Otherwise, use a motor with reinforced insulation 6and a sinusoidal filter.
6
Available on request
22 e-HM Series Installation, Operation and Maintenance Manual
Page 25
5 Operation
5.1 Precautions
WARNING: Injuries hazard
Check that the protection devices of the coupling are installed, when applicable: risk of
physical injury.
WARNING:
Make sure that the drained liquid cannot cause damage or injuries.
WARNING: Electrical hazard
Check that the unit is properly connected to the mains power supply.
5 Operation
WARNING: Injuries hazard
The unit, equipped with a single-phase motor with automatic reset thermal overload
protection, could restart inadvertently after it has cooled down: risk of physical injury.
WARNING: Hot surface hazard
Be aware of the extreme heat generated by the unit.
WARNING:
It is prohibited to put combustible materials near the unit.
NOTICE:
Check that the shaft can turn smoothly.
NOTICE:
It is prohibited to operate the unit when dry, not primed and below the minimum rated
flow rate.
NOTICE:
it is prohibited to operate the unit with the on-off valves on the suction and discharge
sides closed.
NOTICE:
It is prohibited to use the unit in the case of cavitation.
NOTICE:
The unit must be filled and vented properly before it can be started.
e-HM Series Installation, Operation and Maintenance Manual 23
Page 26
5 Operation
NOTICE:
The maximum pressure of the unit at the discharge, at the discharge side, determined by
the pressure available on the suction side, must not exceed the maximum pressure (PN).
5.2 Filling - Priming
NOTICE:
The unit must be filled and vented properly before it can be started.
5.2.1 Positive suction head installation
WARNING:
In the case of liquids that are excessively hot or cold, pay attention to the risk of injury.
1. Close the on-off valve on the suction (C) and discharge (A) side.
2. Loosen the filling plug (B).
3. Slowly open the on-off valve (C) until the liquid regularly comes out from the filling
hole; if necessary, loosen the plug further (B).
4. Replace the plug (B).
5. Open both the on-off valves slowly and fully.
Figure 13: Positive suction head installation priming
5.2.2 Suction lift installation
WARNING:
In the case of liquids that are excessively hot or cold, pay attention to the risk of injury.
1. Close the on-off valve (A) on the discharge side.
2. Remove the filling plug (B).
3. Fill the pump unit until the liquid comes out of the hole.
4. Wait a few minutes and top up with more liquid if necessary.
5. Remove any air that might be present through the relief valve of the suction pipes (see
Guidelines for the hydraulic system on page 18).
6. Replace the plug (B).
24 e-HM Series Installation, Operation and Maintenance Manual
Page 27
Figure 14: Suction lift installation priming
5.3 Checking the direction of rotation (three-phase motors)
Before starting the pump unit:
5 Operation
NOTICE:
Check that the shaft can turn smoothly.
1. Locate the arrows on the adapter, coupling or cover to determine the correct direction
of rotation of the motor.
2. Start the pump unit.
3. Check the direction of rotation through the coupling protection or through the motor
cover
4. Stop the pump unit.
Figure 15: Motor rotation direction
5.3.1 Wrong rotation direction
1. Disconnect the power supply.
2. Invert two of the three wires of the power cable in the terminal box of the motor or in
the control panel.
3. Connect the power supply.
4. Start the pump unit.
5. Check the direction of rotation through the coupling protection, or through the motor
fan cover
6. Stop the pump unit.
e-HM Series Installation, Operation and Maintenance Manual 25
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5 Operation
5.4 Start-up
NOTICE:
It is prohibited to operate the unit with the discharge on-off valve closed or at zero flow
rate: this can cause the liquid to overheat and damage the unit.
NOTICE:
If there is a risk of the unit running at a flow rate below the minimum expected, install a
bypass circuit.
NOTICE:
Check that the shaft can turn smoothly.
1. Check that all the operations indicated in Filling - Priming on page 24 and Checking
the direction of rotation (three-phase motors) on page 25 have been completed
correctly.
2. Shut off the discharge on-off valve almost completely.
3. Fully open the suction on-off valve.
4. Start the unit.
5. Gradually open the on-off valve on the discharge side until it is half open.
6. Wait a few minutes and then fully open the discharge on-off valve.
After the start-up procedure, with the pump unit in operation, check that:
• No liquid is leaking from the unit or pipes
• The maximum pressure of the unit at the discharge, at the discharge side, determined
by the pressure available on the suction side, must not exceed the maximum pressure
(PN)
• The current absorbed is within the rated limits (calibrate the thermal overload
protection of the motor)
• There is no unwanted noise or vibrations
• At zero flow rate, the pressure at the discharge corresponds to the expected nominal
pressure
• No vortexes can occur at the end of the suction pipe, at the point of the foot check
valve (suction lift installation).
NOTICE:
If the units does not deliver the required pressure, repeat the operations in Filling -
Priming on page 24.
WARNING:
After startup, run the unit for a few minutes with several users open in order to wash the
inside of the system.
5.4.1 Settling of the mechanical seal
The pumped liquid lubricates the seal faces of the mechanical seal; under normal
conditions, a small amount of liquid may leak out. When the unit is run for the first time, or
immediately after the seal is replaced, more liquid may temporarily leak out. To help the
seal settle and to reduce leaking:
1. Close and open the on-off valve on the discharge line two or three times with the unit
running.
2. Stop and start the unit two or three times.
26 e-HM Series Installation, Operation and Maintenance Manual
Page 29
5.5 Stopping
5 Operation
1. Shut the on-off valve located on the discharge line.
2. Stop the pump unit and check that the motor slows down gradually.
3. Gradually re-open the on/off valve and check that the motor remains still.
e-HM Series Installation, Operation and Maintenance Manual 27
Page 30
6 Maintenance
6 Maintenance
6.1 Precautions
Make sure to read and understand the safety instructions before starting work.
WARNING:
Maintenance must be done by a technician possessing the technical-professional
requirements outlined in the current regulations.
WARNING:
Always wear personal protective equipment.
WARNING:
Always use suitable working tools.
WARNING:
In the case of liquids that are excessively hot or cold, pay attention to the risk of injury.
DANGER: Electrical hazard
Before starting work, check that the unit is unplugged and that the pump unit, the control
panel and the auxiliary control circuit cannot restart, even unintentionally.
DANGER: Electrical hazard
If the unit is connected to the frequency converter, disconnect the mains power supply
and wait at least 10 minutes for the residual current to dissipate.
6.2 Maintenance every 4000 hours of operation or every year
When the first of the two limits is reached:
1. Measure the pressure at zero flow rate and compare it with the pressure measured
during initial start-up; if the pressure has decreased by more than 15%, check the
condition of impeller, pump body and wear rings.
2. Check the unit for unwanted noise and vibrations.
3. Check that there is no liquid leaking from the unit or pipes.
4. Check that all the screws and bolts of the unit and pipes are properly fastened.
5. Check that the insulation resistance of the motor is greater than 500 MΩ, applying a
test voltage of 500 Vdc for 1 minute.
6. Check the terminal board of the motor for any signs of overheating and arc flashes.
7. Check the condition of the motor's cooling fan and clean it.
28 e-HM Series Installation, Operation and Maintenance Manual
Page 31
6.3 Long periods of inactivity
1. Close the on-off valve on the suction side.
2. Completely empty the unit.
3. Protect the unit against freezing.
4. Before restarting the unit, check that the shaft is rotating freely, without mechanical
impediments.
6.4 Ordering spare parts
Identify the spare parts with the product codes directly on the site www.lowara.com/spark.
Contact Xylem or the Authorised Distributor for technical information.
6 Maintenance
e-HM Series Installation, Operation and Maintenance Manual 29
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7 Troubleshooting
7 Troubleshooting
7.1 Precautions
WARNING:
Maintenance must be done by a technician possessing the technical-professional
requirements outlined in the current regulations.
WARNING:
Observe the safety requirements in the chapters on Operation and Maintenance.
WARNING:
If a fault cannot be corrected or is not mentioned, contact Xylem or the Authorised
Distributor.
7.2 The unit does not start
Cause Remedy
Power supply cut off Restore the power supply
The thermal overload protection of the motor has been
triggered
The device that detects the absence of liquid or minimum
pressure has been triggered
Power supply cable is damaged Replace the power supply cable
The capacitor, if present, is faulty Replace the capacitor
Control panel faulty Check and repair or replace the control panel
Motor (coil) faulty Check and repair or replace the motor
Reset the thermal overload protection on the control
panel or the unit
Top up the liquid or restore minimum pressure
7.3 The differential protection device (RCD) is activated
Cause Remedy
Motor leaking Check and repair or replace the motor
Unsuitable type of differential Check the type of differential
7.4 The motor thermal overload protection or the fuses trigger when the unit starts
Cause Remedy
It is calibrated at a value too low in relation to the rated
current of the motor
Missing power supply phase Check the power supply and restore the phase
Loose and/or faulty connections of the thermal overload
protection
Loose and/or incorrect and/or faulty (star-delta)
connections in the terminal board of the motor
Motor (coil) faulty Check and repair or replace the motor
30 e-HM Series Installation, Operation and Maintenance Manual
Recalibrate
Tighten or replace the clamps and terminals
Tighten or replace the clamps and terminals
Page 33
Cause Remedy
Pump unit mechanically seized up Check and repair the unit
Power supply cable is damaged Replace the power supply cable
Check valve faulty Replace the check valve
Foot check valve faulty Replace the foot check valve
7.5 The thermal motor protection trips
The motor thermal overload protection triggers occasionally, or after the unit has been
running for a few minutes
Cause Remedy
It is calibrated at a value too low in relation to the rated
current of the motor
Input voltage outside the rated limits Make sure the voltage values are correct
Unbalanced input voltage Make sure the voltage of the three phases is balanced
Incorrect working curve (flow rate greater than the
maximum permitted flow rate)
Liquid too dense, presence of solid or fibrous substances
(unit overloaded)
Room temperature too high, exposure to sunlight • Lower the temperature at the point of the thermal
Unit faulty Send the unit to an authorised workshop for testing
7 Troubleshooting
Recalibrate
Reduce the required flow rate
• Reduce the density of the liquid and/or
• Remove the solid substances and/or
• Increase the size of the motor
overload protection and/or
• Protect against direct sunlight
7.6 The unit runs but there is little or no flow rate
Cause Remedy
Motor turns in the wrong direction Check the direction of rotation and change it if necessary
Incorrect priming (there are air bubbles in the suction
pipe or in the unit)
Cavitation Increase the NPSH7 available in the system
Check valve locked in closed or partially closed position Replace the check valve
Foot check valve locked in closed or partially closed
position
Discharge pipe throttled Remove the throttling
Piping and/or unit clogged Remove the clogging
Repeat the priming procedure
Replace the foot check valve
7.7 When turned off, the unit turns in the opposite direction
Cause Remedy
Check valve faulty Replace the check valve
Foot check valve faulty Replace the foot check valve
7.8 The unit produces excessive noise and/or vibrations
Cause Remedy
Cavitation Increase the NPSH8 available in the system
7
Net Positive Suction Head
8
Net Positive Suction Head
e-HM Series Installation, Operation and Maintenance Manual 31
Page 34
7 Troubleshooting
Cause Remedy
Unsuitable anchoring to the ground Check the anchoring to the ground
Resonance Check the installation
Anti-vibration joints not installed Install anti-vibration joints on the suction and discharge
sides of the unit
Foreign bodies in the unit Remove the foreign bodies
Motor bearings worn or faulty Replace the motor bearings
The unit does not turn freely due to a mechanical fault Send the unit to an authorised workshop for testing
7.9 The unit starts up too frequently (automatic start/stop)
Cause Remedy
Incorrect priming (there are air bubbles in the suction
pipe or in the unit)
Check valve locked in closed or partially closed position Replace the check valve
Foot check valve locked in closed or partially closed
position
Starting device (pressure switch, sensor, etc.) set
incorrectly or faulty
Expansion vessel
• no pre-charge, or
• undersized, or
• not installed
Oversized unit Contact Xylem or the Authorised Distributor
Repeat the priming procedure
Replace the foot check valve
Adjust or replace the starter
• Pre-charge the expansion vessel, or
• replace the expansion vessel with another suitable
one, or
• install an expansion vessel
7.10 The unit never stops (automatic start/stop)
Cause Remedy
The required flow rate is greater than the one expected Reduce the required flow rate
Discharge pipe leaking Eliminate the leaks
Motor turns in the wrong direction Check the direction of rotation and change it if necessary
Pipes, on-off valves or filter clogged with impurities Remove the impurities
Starting device (pressure switch, sensor, etc.) set
incorrectly or faulty
The unit runs but there is little or no flow rate See The thermal motor protection trips on page 31.
Adjust or replace the starter
7.11 The unit is leaking
Cause Remedy
Worn mechanical seal • Replace the mechanical seal, or
• Fit a mechanical seal with harder seal faces
Mechanical seal damaged due to thermal shock
(presence of air bubbles in the unit)
Defective mechanical seal Replace the mechanical seal
Mechanical seal damaged due to temperature of the
liquid outside the rated limits
Mechanical seal damaged due to chemical
incompatibility with the liquid
Replace the mechanical seal
Replace the mechanical seal with another of a suitable
make
Replace the mechanical seal with a model chemically
compatible with the pumped liquid
32 e-HM Series Installation, Operation and Maintenance Manual
Page 35
7 Troubleshooting
7.12 The motor becomes excessively hot
Cause Remedy
Room temperature outside the rated limits Lower the room temperature
Cooling fan of the motor clogged or damaged Clean or replace the cooling fan
The unit starts up too frequently See The unit produces excessive noise and/or vibrations
on page 31
The frequency converter, if present, has not been
calibrated properly
See the frequency converter manual
7.13 The frequency converter (if present) is in error mode or turned off
Cause Remedy
See the frequency converter manual See the frequency converter manual
e-HM Series Installation, Operation and Maintenance Manual 33
Page 36
8 Technical references
8 Technical references
8.1 Operating environment
Non-aggressive and non-explosive atmosphere.
8.1.1 Temperature
Phase ~ Min. temperatureto max. [°C] /
1 -15 to 45 / 5 to 113
3 -15 to 50 / 5 to 122
8.1.2 Relative air humidity
< 50% at +40°C (104°F).
8.1.3 Elevation
< 1000 m (3280 ft) above sea level.
NOTICE:
If the temperature and humidity exceed the stated limits, contact Xylem or the Authorised
Distributor.
NOTICE:
If the unit is installed at an altitude greater than the stated one, reduce the power output
of the motor according to the coefficients below, or replace it with a more powerful one.
Table 2: Motor power reduction coefficient
Notes
[°F]
-15 to 40 / 5 to 104 Only for models 1HM06S/N, 3HM03S/N, 3HM02P, 5HM02S/N
and with 0.95 kW motor
Altitude [m] / [ft] Ambient temperature [°C] / [°F]
0 / 32 10 / 50 20 / 68 30 / 86 40 / 104 45 / 113 50 / 122 55 / 131 60 / 140
0 / 0 1.00 1.00 1.00 1.00 1.00 0.95 0.90 0.85 0.80
500 / 1640 1.00 1.00 1.00 1.00 1.00 0.95 0.90 0.85 0.80
1000 / 3280 1.00 1.00 1.00 1.00 1.00 0.95 0.90 0.85 0.80
1500 / 4921 0.97 0.97 0.97 0.97 0.97 0.92 0.87 0.82 0.78
2000 / 6561 0.95 0.95 0.95 0.95 0.95 0.90 0.85 0.80 0.76
8.2 Temperature of pumped liquid
The pressure-temperature diagram in the figure shows the operating limits of the unit.
Contact Xylem or the Authorised Distributor for special needs.
34 e-HM Series Installation, Operation and Maintenance Manual
Page 37
EHM_M0007_A_ot
-40 -20 0 20 40 60 80 100 120 140
t [°C]
-40 -4 32 68 104 140 176 212 248 284
t [°F]
20
15
10
5
0
p [bar]
VB.. Q1Q1..Q1B..
EPDM
KALREZ
FPM
Figure 16: Temperature-pressure diagram
8.3 Operating pressure
See Temperature of pumped liquid on page 34 for the maximum operating pressure, for
the unit model and the temperature of the pumped liquid:
P1max +P max ≤ PN
P1max= Maximum input pressure
Pmax= Maximum generated pressure
PN= Maximum operating pressure
8 Technical references
8.4 Maximum hourly start-ups
Unit rated power [kW] 0.25 to 3 4 to 7.50 11 to 15 18.5 to 22 30 to 37 45 to 75 90 to 160
No. of start-ups at regular
60 40 30 24 16 8 4
intervals per h
8.5 Protection class
IP 55.
8.6 Electrical specifications
See the motor data plate.
8.7 Permitted tolerances for the supply voltage
400/690 ± 10
2+1 3+1 2+1 3+1
Frequency [Hz] 50 60
Phase ~ 1 3 1 3
UN [V] ± % 220 to 240 ± 6 230/400 ± 10
No. of conductors +
earth
8.8 Noise level
220 to 230 ± 6 220/380 ± 5
380/660 ± 10
The free field LA sound pressure level measured at a distance of one metre from the unit
is less than 70 dB (A).
e-HM Series Installation, Operation and Maintenance Manual 35
Page 38
8 Technical references
8.9 Materials
Power [kW] 0.3 0.4 0.50 0.55 0.75 0.95 1.1 1.5 2.2 3 4 5.5
LA noise level [dB±3] 52 52 52 55 55 55 60 60 60 60 60 60
The table shows the materials in contact with the liquid.
Code Material
Pump body Impellers Diffusers
HM..P Stainless steel/AISI 304 Technopolymer Stainless steel/AISI 304
HM..S Stainless steel/AISI 304 Stainless steel/AISI 304 Stainless steel/AISI 304
HM..N Stainless steel/AISI 316 Stainless steel/AISI 316 Stainless steel/AISI 316
36 e-HM Series Installation, Operation and Maintenance Manual
Page 39
9 Disposal
9.1 Precautions
WARNING:
The unit must be disposed of through approved companies specialised in the
identification of different types of materials (steel, copper, plastic, etc.)
WARNING:
It is prohibited to dispose of lubricating fluids and other hazardous substances in the
environment.
9 Disposal
e-HM Series Installation, Operation and Maintenance Manual 37
Page 40
10 Declarations
10 Declarations
10.1 EC Declaration of Conformity (Original)
Xylem Service Italia S.r.l., with headquarters in Via Vittorio Lombardi 14 - 36075
Montecchio Maggiore VI - Italy, hereby declares that the product:
pump unit (see label on SAFETY manual)
fulfils the relevant provisions of the following European Directives:
• Machinery 2006/42/EC (ANNEX II - natural or legal person authorised to compile the
technical file: Xylem Service Italia S.r.l.)
• Eco-design 2009/125/EC, Regulation (EC) No 640/2009 & Regulation (EU) No 4/2014
(Motor 3 ~, 50 Hz, PN ≥ 0.75 kW) if IE2 or IE3 marked,
and the following technical standards
• EN 809:1998+A1:2009, EN 60335-1:2012+A11:2014, EN
60335-2-41:2003+A1:2004+A2:2010, EN 62233:2008
• EN 60034-30:2009, EN 60034-30-1:2014
Montecchio Maggiore, 11.03.2016
Amedeo Valente
(Director of Engineering and R&D)
rev.02
10.2 EU Conformity Declaration (n. EMCD08)
1. Product / Device model: (see label on SAFETY manual)
2. Name and address of the manufacturer: Xylem Service Italia S.r.l. - Via Vittorio
Lombardi 14 -36075 Montecchio Maggiore VI - Italy
3. This declaration of conformity is issued under the sole responsibility of the
manufacturer.
4. Object of the declaration: Pump Unit
5. The object of the declaration described above is in conformity with the relevant Union
harmonization legislation: 2014/30/EU Directive of 26 February 2014 (electromagnetic
compatibility)
6. References to the relevant harmonized standards used or references to the other
technical specifications, in relation to which conformity is declared: EN
61000-6-1:2007, EN 61000-6-3:2007+A1:2011
7. Notified body: -
8. Additional information:
Signed for and on behalf of: Xylem Service Italia S.r.l.
Montecchio Maggiore, 11.03.2016
Amedeo Valente
(Director of Engineering and R&D)
rev.00
Lowara is a trademark of Xylem Inc. or one of its subsidiaries.
38 e-HM Series Installation, Operation and Maintenance Manual
Page 41
11 Warranty
11.1 Information
For information on the warranty refer to the documentation of the sale contract.
11 Warranty
e-HM Series Installation, Operation and Maintenance Manual 39
Page 42
Page 43
Page 44
Xylem |’zīləm|
1) The tissue in plants that brings water upward from the roots;
2) a leading global water technology company.
We’re a global team unified in a common purpose: creating advanced
technology solutions to the world’s water challenges. Developing new
technologies that will improve the way water is used, conserved, and re-used in
the future is central to our work. Our products and services move, treat, analyze,
monitor and return water to the environment, in public utility, industrial,
residential and commercial building services settings. Xylem also provides a
leading portfolio of smart metering, network technologies and advanced
analytics solutions for water, electric and gas utilities. In more than 150 countries,
we have strong, long-standing relationships with customers who know us for our
powerful combination of leading product brands and applications expertise with
a strong focus on developing comprehensive, sustainable solutions.
For more information on how Xylem can help you, go to www.xylem.com
Xylem Service Italia S.r.l.
Via Vittorio Lombardi 14
Montecchio Maggiore (VI) 36075
Italy
Visit our Web site for the latest version of this document
and more information
The original instruction is in English. All non-English
instructions are translations of the original instruction.
©
2018 Xylem Inc
Cod.001080056EN rev.F ed.09/2018
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