Schenker MODULAR 100 User manual

COD: 100M12/24.B.2021
Installation, use and maintenance manual
Schenker Italia
Via Ferrante Imparato 501 - Condominio Genesis
80146 Naples (Italy)
Tel. [phone]
Fax. [phone]
E-mail: in[email protected]
www.schenkerwatermakers.com
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
MODULAR 100
BASIC 12/24 VDC

COD: 100M12/24.B.2021
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
INDEX
1. LAYOUT OF MANUAL........................................................................................................................................4
1.1 STRUCTURE OF THE MANUAL ............................................................................................................................4
1.2 DESCRIPTION OF THE PICTOGRAMS.................................................................................................................4
2. GENERAL WARNINGS AND INFORMATION TO THE RECIPIENT .....................................................5
2.1 IMPORTANT INFORMATION ................................................................................................................................5
2.2 SAFETY WARNINGS ............................................................................................................................................5
2.3WARRANTY..........................................................................................................................................................6
2.4IDENTIFICATION OF THE UNIT ..........................................................................................................................7
2.5LEGISLATIVE REFERENCE ..................................................................................................................................7
2.5.1 DIRECTIVES AND STANDARDS CONCERNING MACHINE SAFETY .................................................................7
2.5.2 RESPECT FOR THE ENVIRONMENT –REQUIREMENTS FOR REMOVAL AND DISPOSAL...............................7
3. PRODUCT PRESENTATION ............................................................................................................................9
3.1 TRANSPORT AND MATERIAL HANDLING ...........................................................................................................9
3.2 STOCK ...............................................................................................................................................................10
3.3 PACKAGING.......................................................................................................................................................10
3.3.1 PACKAGING CONTENTS.................................................................................................................................10
3.4 ATTACHED DOCUMENTS ..................................................................................................................................11
3.5 TECHNICAL DATA .............................................................................................................................................11
3.6 FEATURES OF THE PRODUCT ...........................................................................................................................12
3.7 ADVANTAGES OF THE ENERGY RECOVERY SYSTEM ......................................................................................13
3.8 COMPOSITION OF THE MACHINE ....................................................................................................................14
3.8.1 PUMP GROUP ..................................................................................................................................................14
3.8.2 WATERMAKER GROUP....................................................................................................................................15
3.8.3 ACCESSORIES ................................................................................................................................................17
4. MOUNTING AND INSTALLATION...............................................................................................................18
4.1 GENERAL CRITERIA ..........................................................................................................................................18
4.2 COMPONENTS MOUNTINGS .............................................................................................................................19
4.2.1 PUMP GROUP..................................................................................................................................................19
4.2.2 WATERMAKER GROUP ...................................................................................................................................19
4.2.3 ACCESSORIES................................................................................................................................................19
4.3 INSTALLATION ..................................................................................................................................................19
4.3.1 WATER INTAKES AND DISCHARGES ............................................................................................................19
4.3.2 SEAWATER INTAKE........................................................................................................................................20
4.3.3 FRESH WATER INTAKE FOR WASHING.........................................................................................................21
4.3.4 BRINE DISCHARGE ........................................................................................................................................21
4.4 HYDRAULIC CONNECTIONS .............................................................................................................................22
4.5 ELECTRIC CONNECTIONS.................................................................................................................................25
4.5.1 REMOTE CONTROL PANEL MOUNTING .........................................................................................................25
4.5.2 ELECTRIC CONNECTIONS:WIRES (MODULAR 100 12/24 VDC) .......................................................26
5. FUNCTIONING AND USE..............................................................................................................................28
5.1 COMMAND DESCRIPTION.................................................................................................................................28
5.1.1 ALARMS DESCRIPTION ..................................................................................................................................28
5.2FIRST START-UP PROCEDURE .........................................................................................................................28
5.2.1 PRELIMINARY CHECKS BEFORE PROCEEDING WITH THE START-UP PROCEDURE ....................................29
5.2.2 START-UP .......................................................................................................................................................29
5.3NORMAL OPERATING PROCEDURE ..................................................................................................................30

COD: 100M12/24.B.2021
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
5.3.1 NORMAL OPERATING PROCEDURE WITH TIMER AND FINAL FLUSHING ....................................................30
5.3.2 NORMAL OPERATING PROCEDURE WITH FINAL FLUSHING (RECOMMENDED).........................................31
5.3.3 WORKING CYCLE WITH TIMER .....................................................................................................................31
5.3.4 LONG FLUSHING PROCEDURE.......................................................................................................................31
5.4RESET PROCEDURE ..........................................................................................................................................32
6. MAINTENANCE (ROUTINE AND SPECIAL).............................................................................................34
6.1 CHECK FILTER CLEANLINESS ..........................................................................................................................34
6.2 CHECK THE PLANT WORKING PRESSURE .......................................................................................................35
6.3 CHECK LEAKS ...................................................................................................................................................35
6.4 CHECK FOR MEMBRANES REPLACEMENT ........................................................................................................35
6.5 SHUTDOWN PROCEDURE .................................................................................................................................35
6.5.1 NECESSARY EQUIPMENT ..............................................................................................................................36
6.5.2 SHUTDOWN OPERATING PROCEDURE..........................................................................................................37
6.6 ANTIFREEZE PROCEDURE (WINTERIZING PROCEDURE IN COLD CLIMATE -UNDER 5°C).......................39
6.7 PERIODIC MAINTENANCE.................................................................................................................................40
6.7.1 MEMBRANE REPLACEMENT............................................................................................................................40
6.8 ADJUSTMENTS ..................................................................................................................................................40
7. TROUBLESHOOTING......................................................................................................................................41
7.1 TROUBLESHOOTING CHART.............................................................................................................................42
8. SUGGESTED SPARE PARTS.........................................................................................................................42
8.1 SHORT TERM CRUISING...................................................................................................................................42
8.2 LONG TERM CRUISING .....................................................................................................................................42
8.3 ERS SPARE PARTS ...........................................................................................................................................43
8.4 ADDITIONAL SPARES .......................................................................................................................................44

1 –LAYOUT OF MANUAL COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
4
1. LAYOUT OF MANUAL
1.1 Structure of the manual
The manual is divided into chapters, which gather all the information necessary to use the system without risk.
Within each chapter there is a subdivision in paragraphs to focus on essential points; each paragraph can be
pointed out with a subtitle and a description.
At the top of each page the heading section is reported in order to remind the reader the field of the page.
Within the chapter, for example chapter 1, we will have:
1 Chapter title
1.1 Paragraph title
1.1.1 Subtitle
1.1.1.1 Further subtitles
The numbering of the pages, figures and tables, is reset to each chapter; therefore, we will find the prefix
indicating the chapter and the page number, figure or table in progressive that starts from number 1 at the
beginning of each chapter.
1.2 Description of the pictograms
The following symbols will be used in the manual to highlight particularly important indications and warnings:
ATTENTION:
This symbol indicates accident prevention regulations for the operator and / or for any exposed
persons.
CAUTION:
This symbol indicates that there is the possibility of damaging the system and / or its components.
NOTE:
This symbol indicates useful information.

2 - GENERAL WARNINGS & INFO TO THE RECIPIENT COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
5
2. GENERAL WARNINGS AND INFORMATION TO THE RECIPIENT
2.1 Important information
To safeguard the operator's safety and to avoid possible damage to the machine, before carrying out any
operation on the machine, it is essential to read carefully all the instructions manual.
This manual must be complete and legible in its entirety, every operator involved in the use of the machine, or
responsible for maintenance or adjustment operations, must know its location and must have the possibility to
consult it at any time.
All rights of reproduction of this manual are reserved to SCHENKER ITALIA. This manual cannot be transferred
to third parties without the written authorization of SCHENKER ITALIA.
The text cannot be used in other printed matter without the written permission of SCHENKER ITALIA.
The descriptions and illustrations provided in this publication are not binding.
SCHENKER ITALIA reserves the right to make any modifications it deems appropriate.
© SCHENKER ITALIA
THIS MANUAL IS PROPERTY OF SCHENKER ITALIA, ANY REPRODUCTION, EVEN PARTIAL, IS
PROHIBITED.
This manual was drafted according to the requirements of the 2006/42 / EC Machinery Directive.
2.2 Safety warnings
•Wear protective equipment suitable for service operation.
•Clothing must be tight to the body, and resistant to the products used for cleaning.
•Do not remove safety devices or accident prevention protection.
•To check if the plant is correctly installed contact a Schenker service point.
•Verify that the electric and hydraulic connections are in keeping with the indicated specifications.
•Avoid using the plant if the sea water is polluted.
•Children and inexperienced people shall not touch or operate the plant.
•Check periodically that no leaks are present. Avoid installing the plant where a leak may cause damage
and/or jeopardize the safety of the vessel.
•Maintenance should only be carried out by suitably qualified persons or Schenker personnel.

2 - GENERAL WARNINGS & INFO TO THE RECIPIENT COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
6
ATTENTION
Any technical changes or operating conditions indicated that affect the correct operation or
safety of the machine must only be carried out by the manufacturer's technical staff or by
technicians formally authorized by the manufacturer. Otherwise, SCHENKER ITALIA declines
any responsibility for changes or damages that may result from it.
2.3 Warranty
The equipment and the relevant accessories are guaranteed 12 months from delivery. The guarantee does
not include consumable items (filters, carbon filters, membranes, etc.). The “ERS” pressure amplification
device is guaranteed 36 months, provided that the annual maintenance is per-formed at a Schenker service
point.
The guarantee covers faults, defect of materials and parts. It is limited to the replacement or re-pair of faulty
parts. The expense for the disconnecting and reinstalling on the vessel and transport of the equipment from or
to our Service Point, or our factory will be at the customers own expense.
The under guarantee delivered parts transport, will be at customer’s own risk.
In case of repairs under guarantee performed by our technicians on the customer vessel, the faulty parts
replacement cost will be at Schenker's expense, while manpower and travel expenses will be charged to the
customer. The guarantee does not include faults caused by negligence in operating, maintenance and
installation of the device (if not carried out by an authorised Schenker Service point).
Dismantling by non-authorized personnel will render void all guarantees. Schenker Italia cannot be held liable
for any direct or indirect damage caused by the malfunctioning equipment, limiting its responsibility to the repair
and replacement of faulty parts.
ATTENTION
SCHENKER ITALIA declines any responsibility for improper use of the machine, for damages
caused as a result of operations not covered by this manual or unreasonable use.

2 - GENERAL WARNINGS & INFO TO THE RECIPIENT COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
7
2.4 Identification of the unit
All the watermakers manufactured by Schenker Italia can be identified by a serial number printed on a label
which is pasted upon the aluminium frame.
Serial number
Fig. 2-1
2.5 Legislative reference
2.5.1 Directives and standards concerning machine safety
•Machinery Directive 2006/42 / EC, in force since December 29, 2009;
•Low Voltage Directive 73/23 / EEC and subsequent amendments and additions: 93/68 / CEE
implemented by the Law of 18 October 1997 n. 791.
•Electromagnetic Compatibility Directive 89/336 / EEC and subsequent amendments and additions:
93/31 / CEE implemented with D.L. December 4, 1992 n. 476.
•Standards UNI EN 292/1 and 292/2 (safety of machinery);
2.5.2 Respect for the environment –requirements for removal and disposal
ATTENTION
Removal and disposal of materials, as result of the decommissioning of the machine, must be
performed in accordance with the regulations in force, for the safeguard and protection of the
environment
With regard to removal and disposal, it should be noted that the materials of which the machine is made of are
not of a dangerous nature and consist essentially of:
- Stainless Steel;
- Aluminium;
- Plastic;

2 - GENERAL WARNINGS & INFO TO THE RECIPIENT COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
8
- Carbon fibre;
- Motors, cables and consumable electrical materials;
- Rubber and polyurethane seals.
After dismantling the machine, the various materials must be segregated according to the regulations of the
country in which the machine has been removed.
The machine does not contain dangerous components or substances that require special removal procedures.
ATTENTION
Different legislations are in force in the different countries, therefore the prescriptions imposed
by the laws and by the agencies designated by the Countries must be observed.

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
9
3. PRODUCT PRESENTATION
ATTENTION
Be sure to follow general safety instructions.
•Wear protective equipment suitable for the transport and handling operations.
•Lift the machines with equipment appropriate to the weight and size of the box, taking the utmost care
and following carefully the instructions on the present use and maintenance manual (attachment points
for loading devices, etc.).
•Make sure that the lifting equipment used is in good condition and correctly maintained.
•Do not stand or pass under the groups to be moved during lifting or transport operation.
3.1 Transport and material handling
The watermaker unit is transported in a cardboard box. In the following table dimension and weight are
indicated.
MATERIALS HANDLING
fig. 3-1
PACKAGING DIMENSIONS AND WEIGHT
tab.3-1
Model
L cm.
W cm.
H cm.
Weight Kg.
Modular 100
82
64
47
82

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
10
3.2 Stock
ATTENTION
To avoid damage to the system, store the unit in a dry place at a temperature of between 5°C
and 40°C. Very cold temperatures could led to a freezing of the fluid inside the system with the
consequence of a permanent damage of the system.
3.3 Packaging
3.3.1 Packaging contents
PACKAGING (photo is purely for information)
FIG. 3-2
MODULAR 100
Watermaker
Pump group
Active carbon filter with electrovalve
White filter key
Mesh filter
Non-return valve with Tee fitting
Remote panel
10 mt extension cable for remote panel
Installation kit
Small metal parts
6x8 pipe for production
Pipe fittings

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
11
3.4 Attached documents
The packaging contains the technical documentation (use and maintenance manual, electric and hydraulic
scheme, warnings and instructions).
ATTENTION
•Lift the system only using the aluminium
structure and not trough the Inox SS fittings.
•Read carefully the use and maintenance
manual before installing the system.
•Use only recommended material for the
installation (especially pipes, fittings and
seals) in accordance with the present
manual.
•Do not store the unit under temperature of 5°
and above 40°C.
DOCUMENTS INCLUDED IN THE PACKAGING (photo is purely for information)
FIG. 3-3
3.5 Technical data
WATERMAKER GROUP
WATERMAKER DIMENSIONS
FIG. 3-4

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
12
Weight: 47 Kg
Hydraulic Connection
Seawater inlet: ¾’’ fitting, 20mm internal diameter reinforced pipe.
Exhaust: ½’’ fitting, 16mm internal diameter reinforced pipe.
Fresh water: ¼’’ fitting, 6x8mm pipe.
PUMP GROUP
Dimensions
Length: 37 cm
Width: 15 cm
Height: 23 cm
Weight: 11 Kg
Hydraulic Connection
Water inlet: ¾’’ fitting, 20mm internal diameter reinforced pipe.
Water outlet: ¾’’ fitting, 20mm internal diameter reinforced pipe.
Feed pump type: Rotative pump
Filters: n. 1 Cartridge filter 5 microns 2.32" x 9 ¾’’
n. 1 Active carbon filter 2.32" x 9 ¾’’
Power supply: 12 VDC +/- 15% (100Z12 version)
24 VDC +/- 15% (100Z24 version)
Average electric consumption: 400 Watt/h average
Nominal fresh water production: 100 Lit/h +/- 20% @ seawater 25 °C salinity 35.000 ppm
CEE conformity: In compliance with directives 89/392 CEE sect.1 (general safety machines
requirements), 89/336 CEE (electromagnetic compatibility), 73/23 CEE
(electric safety requirements)
3.6 Features of the product
The water produced by a Schenker plant, produced from clean seawater has a high purity but the potability
may not be guaranteed as bacterium may be present in the watermaker, caused by non-observance of
shutdown and cleaning procedures. It is essential that correct shut down and storage procedures are followed
to ensure continued purity of the product water. UV treatment of the product water may be beneficial.

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
13
3.7 Advantages of the Energy recovery system
Introduction
Thank you for choosing a Schenker Watermaker.
As all the equipment, the knowledge of operating and maintenance procedures allows to use the system in the
best way, and to guarantee a perfect functioning throughout the years. We invite you to read carefully this
manual and to keep it for a quick reference.
Functioning principles
The Schenker watermakers, as alternative to the high-pressure pumps of traditional systems, utilizes the
ENERGY RECOVERY SYSTEM patented device, which amplifies the pressure of common low-pressure
pumps, and recoup all the hydraulic energy back from the membranes, allowing a high energy efficiency.
The lack of high-pressure pumps makes the system silent and vibrations free, and enormously simplify the
use because no adjustment is necessary for its operating.
FUNCTIONING SCHEME
FIG. 3-5

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
14
3.8 Composition of the machine
The machine is composed of the following parts:
1. PUMP GROUP
2. WATERMAKER GROUP
3.8.1 Pump group
This pump has the duty of picking the sea water up and send it to the watermaker group, through the pre filter.
The pump group is composed of the following parts:
•5 micron cartridge filter
•Pressure transducer
•Pump box
•Accumulator
PUMP GROUP
FIG. 3-6
5 micron filter + accumulator
Pump head + motor
Pressure transducer
Pump box
Pressure transducer. It Is hydraulically connected tothe pump group. It stops the system if the pump pressure
exceeds 11 bar or if it doesn’t reach 0,8 bar.
Pump box. Plastic Box with all the electric connections for the power supply of motor, motherboard, pressure
transducer, remote panel and electrovalve.
Accumulator. This is a polypropylene air reservoir. Its function is to reduce and stabilize the pressure peaks
during the watermaker functioning. The device has to be pre-charged with air through the Schrader valve. The
pressure is about 6 Bar. The accumulator is preloaded in factory to the correct pressure.
On some versions it might be installed on the unit.

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
15
3.8.2 Watermaker group
WATERMAKER GROUP
FIG. 3-7
Manometer
Reverse osmosis membrane
Flowmeter
WATERMAKER GROUP (TOP VALVE VIEW)
FIG. 3-8
Reset valve
Reset positioner
Depressurization valve
Fresh water hose

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
16
CONCENTRATE OUTLET (OUT) AND SEAWATER INLET (IN)
FIG. 3-9
The watermaker group is composed of the following parts:
•Reverse osmosis membranes
•Energy Recovery System
•Manometer
•Flowmeter
•Accumulator
•Depressurization valve
•Positioner
•Reset valve
Reverse osmosis membrane. It is installed inside the glass fibre high-pressure housing. Membrane type is
n.2 x SW4021 type. Its purpose is to separate the intake high-pressure seawater in two flows: one for the salt-
water drain and one for the fresh water production.
Energy Recovery System. It is the black, carbon fibre unit. It has the function to amplify the pressure supplied
by the pumps and to recoup the hydraulic energy back from the membranes. The ERS device makes periodic
cycling by a hydraulically controlled automatic valve. The cycles are noticeable through a ”beat” issued
periodically by the watermaker unit. The unit is based on cylinders and a central body containing the hydraulic
valve necessary for the system functioning.
Manometer. Located on the front panel, it measures the working pressure of the watermaker.
Accumulator. It is a grey PVC reservoir of air, installed in the watermaker. Its function is to reduce and stabilize
the pressure peaks during the watermaker functioning. The device has to be pre-charged with air through the
specific valve. The air pressure precharge is about 6 Bar. The pressure dimmer is charged in factory at the
right pressure.
Flowmeter. It is located on the front panel, and it measures the fresh water instantaneous capacity sent to the
tank. The device accuracy is +/- 20%.
Depressurization valve. It is used for the air bleeding of the unit. It is recognizable by a blue lever and it is
located on the top valve of the ERS. Its function is to depressurize the system and to allow the bleeding of air.
IN

3 –PRODUCT PRESENTATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
17
The valve must be closed during normal working conditions (vertical position), and it is opened during the air
bleeding operations (horizontal position).
Positioner. It is a stainless steel threaded arm, with a black knob, located on the right side of the watermaker.
Its function is to reset the unit in case of hydraulic block.
Reset valve. It is installed on the watermaker on the top of the ERS and it is recognizable by the little blue
plastic lever. The valve must be closed during normal functioning (lever perpendicular to the valve). Such valve
has the function to allow the reset of the ERS in case of a system block. It must be opened before acting on
the valve positioner.
3.8.3 Accessories
The main accessories of the watermaker are the following:
•Active carbon filter
•Electrovalve
•Non-return valve
•Mesh filter (strainer)
ACCESSORIES
FIG. 3-13
Non-return valve
Active carbon filter
Mesh filter (strainer)
Elettrovalve
Active carbon filter. This filter is connected between the fresh water pressurized system of the vessel and
the electro valve on the filter holder. On the filter inlet is positioned a manual valve that allows to replace the
cartridge without depressurize the fresh water system of the vessel.
Electrovalve. It has the function of switching from seawater intake to fresh water tank when washing the
watermaker.
Non-return valve. It avoids the emptying of the inlet pipes. It must be installed vertically. It avoids also the
leak of fresh water from the seacock while washing procedure.
Mesh filter. The machine is equipped with a strainer to protect the pump from macro sediments. It is placed
between the seacock and pre-pump.

4 –MOUNTING AND INSTALLATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
18
4. MOUNTING AND INSTALLATION
4.1 General criteria
Before starting with the installation, it is important to carefully plan all the activities, by evaluating all the possible
solution to be adopted. The main points to focus on are the following:
•Individuate the seawater inlet
•Positioning of the main units (pump group, watermaker group, active carbon filter).
•Positioning of the thermal-magnetic circuit breaker.
•Passage of the pipes and electric cables.
CAUTION
For a correct installation of the watermaker, in order to avoid issues along the different ways
of operating condition, please follow carefully the general instruction below:
•Consider to install the through-hull fitting in a central and deep position, in the way that no air
could be aspirated.
•The non-return valve has to be installed under the seawater level and as close as possible to
the through-hull fitting, in vertical position.
•The pump must be installed as low as possible respect to the seawater level and as close as
possible to the seawater intake (through-hull fitting).
•The watermaker unit must be horizontally positioned, and arranged on an adequate support
which is able to sustain the weight (about 40 Kg).
CAUTION
The pump group must be installed in a ventilated place, in order to facilitate the cooling. In
addition to this, a place not exposed to condensation and dripping should be adopted.
ATTENTION
The external surface of motor and pump can reach high temperature; therefore, it is
recommended to avoid any contact with inflammable liquids and materials.
NOTE
Once individuate the correct installation solution, it is recommended to first make a schematic
draft of the hydraulic and electric connection, and attach them to the present manual for future
needs as first reference.

4 –MOUNTING AND INSTALLATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
19
4.2 Components mountings
4.2.1 Pump group
The rotary vane pump must be installed below the sea level and as close as possible to the water inlet;
furthermore, the pump cannot run dry.
The pump group should be installed in an adequately ventilated room, with the purpose to facilitate the cooling
of the motor, and not subject to condensation or drippings. The max permitted room temperature must not
exceed 40°C.
Avoid the contact or the proximity with inflammable material or liquid, since the motor surfaces can reach
elevated temperatures. Avoid locating the pump wherever a possible loss of water can involve damages or
jeopardize its safety. The pump must be installed on a base sufficiently horizontal, suitable to sustain the
weight of the group. The pump is normally fixed on the support structure by passing bolts.
4.2.2 Watermaker group
Concerning the watermaker unit installation there are not height limits respect to the seawater level. Anyway,
it should be installed above both pumps.
Avoid to install the system wherever any possible leak may cause damages to the vessel or jeopardize its
safety, since possible leaks due to accidental causes (pipe bursting, pipe clamp loosening, equipment failure,
etc.) may cause water losses.
The hydraulic intake and outlet connections are positioned on the left of the unit. Therefore, it is necessary to
foresee a minimum distance of 20 cm. to allow the pipes laying. The watermaker unit must be installed on a
base sufficiently horizontal, suitable to sustain the weight of the group. The max allowed room temperature
must not exceed 40°C. It is advisable to install the unit in such position to make the instrumentation easily
visible, and make the valves (located on the right of the unit) easily accessible. The watermaker is normally
fixed on the support structure by passing bolts.
4.2.3 Accessories
The non-return valve has to be installed vertically as close as possible to the seawater intake, following the
direction of the arrow.
The active carbon filter (and the attached electrovalve) has to be placed next to the pump group, if possible,
on a vertical side easily accessible.
4.3 Installation
4.3.1 Water intakes and discharges
For a correct installation of the watermaker it is necessary to arrange the following water intake and discharge
out of the board:
•Seawater intake.
•Fresh water intake for washing.
•Brine discharge.

4 –MOUNTING AND INSTALLATION COD: 100M12/24.B.2021
EN
THE PRESENT MANUAL BELONGS TO - Schenker Italia -ALL RIGHTS RESERVED
20
4.3.2 Seawater intake
Seacock with
through-hull
fitting
It is ideal a specific sea water intake, size ¾’’
minimum in a central position, well under the water
surface even when the vessel is well heeled over.
The skin fitting is recommended. It must be oriented
to the bow of the vessel.
In case of high speed vessel (over 15 knot) it is
advised to make some holes on the backside of the
shape, in order to reduce dynamic prevalence during
navigation.
Size 3/4”
Pre-existing
seacock
adapting
(alternatively)
As alternative, it is possible Tee into a pre-existent
water inlet as long as the following conditions are
met:
•3/4’’ minimum size;
•No air can be introduced into the system
from other use ie: salt water taps in galley;
•Must always be under the water surface
even when the vessel is well heeled over.
•Must be far from WC discharge.
CAUTION
Do not use the pre-existing water inlet of
the cooling system dedicated to the
motor.
Size 3/4”
INSTALLATION NOTES
•Allow a minimum 3/4” on-off ball valve on the water intake.
•The pipe connections, especially if under the seawater level, must be secured with double pipe clamps.
•An easily inspected mesh type filter will be required close to the water intake. The filter has to be of
50 microns. It is possible to use filters from existing outlets.
•The seawater intake must be at least 3/4” size.
•Downstream the seawater intake must be installed a strainer and a non-return valve. The water flow
inhaled by the watermaker is about 20 lit/min.
Mesh Filter
Strainer on
existing hull
(alternatively)
In case of seawater intake with pre-existing net
filter, it is possible to use it as long as the following
conditions are met:
•Flow rate capacity of the filter is
adequate to the whole intakes it serves.
Filtration grade of the strainer is 50
mesh.
INSTALLATION NOTES
The filter has to be connected next to the through-hull fittings, and must be easily accessible
for inspection.