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OPERATION AND MAINTENANCE MANUAL

1. Introduction

1.1. General

1.2. Technical data

1.3. System description

2. Installation

2.1. General criteria and material required

2.2. Components mounting

2.3. Water intake

2.4. Hydraulic connections

2.5. Electric connections

3. Operating procedures

3.1. Remote panel commands

3.2. First start-up procedure

3.3. Normal operations

4. Maintenance

4.1. Shutdown procedure

4.2. Maintenance and recurrent inspections

4.3. Troubleshooting

5. Safety cautions

6. Warranty

Rev. 2011

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1. Introduction

1.1 General

Thank you for choosing a Schenker Watermaker which we know will give you years of service,

making life onboard more enjoyable.

To ensure the maximum efficiency of your Schenker Watermaker and its trouble free working,

Please read this manual and to keep it onboard for reference.

The Modular 60 watermaker uses Schenker’s patented ENERGY RECOVERY SYSTEM which

amplifies the pressure of common low pressure pumps, and recoups all the hydraulic energy back

from the membrane. This saves on the use of power, allowing the Modular 60 to be run directly from

the vessels batteries.

The ENERGY RECOVERY SYSTEM operating components are reduced to a minimum, thanks to

two internationally patented solutions that eliminate the need for pilot valves.

The lack of high-pressure pumps ensure that the system is silent and vibration free. It also means that

no adjustments are required when the system is started up.

Another system feature of the Modular 60 is operating flexibility; the watermaker is equipped with

two independent pumps, allowing the regulation of water production according to the owner's needs.

30 litre/hour water production can be obtained by starting just one pump, consuming only 100 Watt,

whereas with both pumps running 60 litre/hour water is produced with a consumption of 240 Watt.

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1. Introduction

1.2 Technical data

WATERMAKER GROUP

Dimensions

Length: 67 cm

Width: 30 cm

Height: 30 cm

Net weight: 28 Kgs

Connections:

Seawater intake fitting for hose int. dia. 16 mm.

Salt water outlet fitting for hose int. dia. 16 mm.

Fresh water outlet compression fitting for hose int. dia. 6 mm. int. X 8 mm. external

PUMPS GROUP

Dimensions

Length: 34 cm

Width: 19 cm

Height: 35 cm

Net weight: 10 Kg

Connections:

Seawater intake fitting for hose int. dia. 16 mm.

Salt water outlet fitting for hose int. dia. 16 mm.

Filter: 5 micron type

Power supply: pump: 230 vac 50 Hz mono

electronic box 12-24 vdc

Power consumption: 250 Watt average

Production performance: 60 Lit/h +/- 20% @ seawater 25 °C - salinity 35.000 ppm

(Parts per million)

Quality of water produced: average of 400 ppm TDS (Totally dissolved solids)

CEE conformity: In compliance with directives 89/392 CEE sect.1 (general safety

machine requirements) , 89/336 CEE (electromagnetic compatibility).

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1. Introduction

1.3 System description

The Modular systems are based on 2 units:

� PUMP GROUP

This unit have the duty of picking the sea water up and send it to the watermaker unit at a certain

pressure (about 7 –8 Bar).

The pump is equipped with a pressure switch for high-pressure shutdowns, calibrated at about 9 Bar.

The pressure switch can be adjusted by an 2 mm. allen key. To reach the allen key adjustment head

must be unscrew the electric connector screw, and then introduce inside the allen key (also without

remove the electric connector). Turning clockwise the allen key increases the pressure shut down set,

whereas turning anti clockwise decrease the pressure switch shut down set. The pump group is

equipped with an electric box that contain the power relay that activate the electric motor of the

pump. An electric terminal (marked A/B) receive the start-stop consent from an external start/stop

switch. The pump motor is IP 20 protected and therefore must be carefully protected from water

sprays.

The orange filter, positioned between the pump outlet and the watermaker inlet, is fitted with a 5

microns cartridge, and protects the watermaker unit from sediments and debris.

Pump box

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� WATERMAKER GROUP

1. Reverse osmosis membranes

2. Manometer

3. Flow meter

The watermaker group is based on the following main components:

Reverse osmosis membranes, inside the silver high-pressure vessel are used to separate the intake

high-pressure seawater into two flows: one for the salt-water waste and one for fresh water

production.

Energy Recovery System. Amplifies the pressure supplied by the pump and recovers 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 contains two cylinders, and a central body housing the hydraulic valves.

Manometer is located on the front panel, and it measures the running pressure of the pumps.

Flowmeter is located on the front panel, and measures the flow of produced fresh water coming out

of the unit. This is only indicative as the accuracy of the flowmeter is +/- 20%.

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1. Depressuruzation valve

3 . Reset valve

3. Positioner

Depressurization valve. Is used for purge the air from the system. This is a blue lever located to

the rear of the watermaker. Its function is to depressurize the system and allow air bleeding. The

valve must be closed during normal working conditions and is opened only during the air bleeding

operations. It is suggested to open the lever halfway (45°) during air bleeding operations.

Positioner: A stainless steel threaded arm, with a black knob, located on the right side of the unit.

Its function is to reset the unit if it is hydraulically blocked.

Reset valve. Is installed on the front right hand corner of the watermaker unit. It is a small blue

plastic lever. The valve must be closed during normal functioning (lever perpendicular to the

valve). This valve allows resetting in case of a system failure It must be opened before using the

valve positioner.

Pressure switch and accumulator

Pressure switch. It is a little electric device, positioned on the rear, below the 3rd

membrane. It is

connected to the computer throw the cables PS / PS . Its function is check that the cycling of the

machine is correct.

Accumulator unit. Is a cylindrical unit located behind the ERS ( main black body of the watermaker

unit). Its purpose is to dampen the pump's pressure oscillations during the watermaking. The

accumulator is factory pre charged with air to a pressure of 3.0 BAR. Check the pressure periodically

(at least every year) and adjust it.

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Pressure regulation valve. It is postioned close to the inlet hose of the watermaker. It adjusts the

working pressure of the pump. The pressure must be adjusted at about 7,5 bar.

Pressure regulation valve

Computer box . It is an external unit. It has to be installed relatively close to the watermaker, in a

position protected from water. It is connected to the remote panel and controls the functions of the

watermaker automatically.

The microswitches P1, P2, and EV allow the direct command of pump1, pump2 and the electrovalve

respectively. They can be used, as an emergency solution, for starting the watermaker in case of total

failure of the electronic computer. In normal condition they have to be switched off.

Remote panel cable

connector

Emergency

microswitch

Electric

connections

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� ACCESSORIES

The main 60M220 accessories are:

Net filter (transparent) : It protects the pump from gross debris. The filtering degress is about 50

mesh. As option an existing 50 mesh strainer filter could be used as well , provided that the flow

capacity is enough to serve all the unit connected (the seawater flow of the watermake3r is about 18

lit/min).

Pump filter (orange) It must be positioned between the pump outlet and the watermaker inlet. It is

fitted with a 5 microns cartridge, and protects the watermaker unit from sediments and debris.

CA filter (white): It removes the chlorine from the washing fresh water (the chlorine could damage

the reverse osmosis membranes). It has to be connected to the fresh water pressurized system of the

boat

Electrovalve It is positioned on the CA filter. It switches the pump suction from seawater to

freshwater during the washing operations .

Blackflow valve. It avoids to empty out the inlet hose of the pump. It must be installed vertically

as close as possible to the net filter.

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2. Installation

2.1 General criteria A planned installation will make both fitting and operation of your Modular 60 watermaker easier.

Details below need to be taken into account with your installation:

� An appropriate seawater intake with necessary fittings.

� Positioning of Pump & Watermaker units .

� Pipework and cable laying.

A good installation needs to be easy to use, easy to access for maintenance and filter changes. All

Watermaker components have been designed to achieve all of this. Draw a schematic electric and

hydraulic connection diagram when the installation plan is complete and keep it with this manual for

reference.

2. Installation

2.2 Components mounting � Pump group

The pump is partially self-priming. Anyway it is strictly recommended to install the pump below the

watermaker, and as low as possible respect the sea level, and as close as possible respect the sea

water intake.

The pump cannot run dry. Therefore it is very important avoid to start the system if the intake valve is

closed or if inlet filters are clogged.

The pumps need to be installed in an adequately ventilated area to allow cooling and avoiding

condensation.

Do not install the pumps unit close to inflammable liquids, as the pump surfaces can become warm.

Avoid locating the pump where a loss of water can cause damage or jeopardize its safety.

The pump must be installed horizontally on a suitable base strong enough to support its weight when

the filter housing is full of water.

It may be necessary to create a suitable wooden or fiberglass structure for the unit if an existing one

not available. The base of the pump is equipped with vibration-damping devices, but avoid installing

it on a surface susceptible to vibration.

The pumps unit can be a little noisy in operation. Possible areas for siting are: sink closets, under

berth lockers, wardrobe bases (creating a false floor above it.)

The max. allowed room temperature must be 40°C.

� Watermaker unit.

The watermaker unit is hydraulic. It can be installed in areas inside exposed to humidity. It can be

installed at any height inside the vessel. Avoid installing the system where a leak will cause damage

to the boat or jeopardize its safety.

The hydraulic intake and outlet connections are positioned in the standard version, on the left hand

side of the unit. It is necessary to leave a minimum distance of 20 cm. to allow for pipe laying.

Possible locations of the watermaker group are: engine compartment, under berth lockers, cockpit

lockers. Install the unit where access to valves and instrumentation is visible. The unit is fitted with

rubber mountings to prevent vibration, avoid fitting the watermaker in an area where there is a lot of

vibration. The unit can be fixed on the supporting structure using the screws supplied with the

equipment or the bolts with nuts and washers.

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2. Installation

2.3 Water intakes The necessary hydraulic intakes are:

• Seawater intake

It is ideal a specific sea water intake, size ¾” min. 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 boat.

As alternative it is possible Tee into an 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 tap in galley

-Must always be under the water surface even when the vessel is well heeled over.

Allow a minimum ½” on-off ball valve on the water intake. The hose connections, especially if under

the seawater level, must be secured with double hose clamps.

It is not advisable to Tee into the engine cooling water intake as it may impair the cooling of the

engine. 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.

• Fresh water intake for washing.

Tee in downstream of the vessel's fresh water pressure system (Domestic water from tank) .

IMPORTANT

Flushing must always be carried out with the pressure water system ON.

The pressure water system must NOT exceed 2.5 BAR.

• Salt-water waste. (After passing through the watermaker)

The salt-water reject fitting must be ½” minimum and preferably above the seawater level.

Again, if required you can tee into an existing skinfitting ie: sink water out, one way valves may need

to be considered. The watermaker waste pipe must be unobstructed when the machine is in use.

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2. Installation

2.4 Hydraulic connections

Pressurized fresh water valve Pump

Elecrovalve Non return valve

5 micron filter Net filter

Swan neck upward - Disharge Water inlet

Watermaker Active carbon filter

Fresh water outlet

All the hydraulic connections (to exception of the fresh water production) have to be realized with a

16 mm. int. diam. hose and a ½” holder. The hydraulic section that is continuously under

consistent pressure is the pump outlet – 5 m. filter – watermaker inlet connections . For this section

is necessary to use a good quality PN 15 min. reinforced hose. An inadequate hose could burst,

jeopardizing seriously the safety of the boat.

The hydraulic connections are the followings:

Low pressure

max 3 bar

-connections sea water inlet- net filter -

backflow valve inlet.

-connection watermaker’s exhaust

discharge - drain outlet.

PN 5 stainless steel spring type

hose 16 mm int. diam

Medium

pressure –

max 13 bar

-connections fresh water pressurized

system–carbon filter-backflow valve

outlet–pump inlet

-connections pump outlet-5 microns filter–

watermaker inlet.

PN 15 reinforced hose 16 mm

int. diam.)

Low pressure -

max 3 bar

- Connection to the fresh water tank

Small 6X 8 blue pipe (furniched)

“Armovin” type hose int. dia. 16 mm.

Reinforced hose PN15 min int. dia. 16 mm.

Plumb to pressure side of boat fresh water

Exhausted discharge

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IN and OUT connection of the pump

Connect the in and out of the pump as shown.

See as well the arrows marked on the pump

WATERMAKER CONNECTIONS:

IN – (sea water inlet from the pump) Make use, for this connection, of the external holder located

on the left side of the watermaker (marked IN).

OUT (Discharge outboard) Make use, for this connection, of the holder located on top of

the pressure amplifier, inside the watermaker unit (marked OUT). Create a Swan neck upward,

when the drain outlet on the vessel is positioned below the watermaker unit, in order to guarantee a

water head.

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PRODUCTION FRESH WATER CONNECTION

The connection has to be made using the small

hose supplied with the equipment. The

connection has to be made between the

polyethylene pipe that comes out the

watermaker unit (on the right), and the upper

side of the tank, on a ¼” outlet if available.

It is possible, in case of metal tanks, to make a

¼” threaded hole to connect the supplied male

connector.

Another option is to Tee into the tank air vent

hose.There are no particular limits on the

connection length.

Another option is to Tee into the tank air vent hose. This is only possible if the breather pipe section

is more than 16 mm. dia. There are no particular limits on the connection length.

2.Installation

2.5 Electric connections

� Remote control panel mounting

The remote control panel has the following dimensions:

width 135 mm. height 116 mm.

It can be flush mounted on any surface, providing the area behind is free of moisture and

condensation and there is enough depth to house the rear part of the panel (approx. 8 cm.).

To cut on the mounting surface will have the following dimensions:

width 115 mm. height 97 mm.

� Wiring

Power Supplies

The power supply, coming from the 220 VAC electric group , needs to be connected to the apposite

terminals 220VAC provided inside the pump box. On the supply wiring must be installed an

automatic, 2 poles, circuit breaker with 5 ampere cutoff current and all the protection (including a

differential switch) requested by the local law. The section of the cables will be 4 mm2 min.

The computer box will be powered 12-24V, directly from the service batteries or through a 230/12-24

charger.

Connections between the pump box and the computer box

2 cables P1/- (section 2,5 mm2) will connect the pump box with the computer box, and will provide

the start/stop command to the pump.

Connections between the computer box and pressure switch and electrovalve

The pressure switch, positioned on the watermaker, has to be connected to the clamps PS/PS in the

computer box (section 2,5 mm2). Any specific polarity is required.

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The electrovalve, positioned on the active carbon filter has to be connected to the clamps EV/EV in

the computer box (section 2,5 mm2). Any specific polarity is required.

Connection between the computer box and remote panel.

Connect the remote panel to the computer box using pre wired cable supplied (standard length 10

mts.)

Wiring connection diagram

Watermaker

pressure switch

Elecrovalve

Batteries or

charger

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3. Operation

3.1. Remote panel commands

KEYBOARD FEATURES

The panel keyboard has a total of four push button. The display light switches off after 15 minutes of

not use. Pushing any button, the display will light again, without activate any other command. The

functions of the push buttons are:

START Used to start the system.

If it is pushed shortly the system starts and the unit will run indefinitely until will be pushed STOP.

If it is pushed for at least 3 seconds the system starts, and will stop automatically after the working

hours selected with the timer (see menu functions).

It can anyway be stopped before, pushing STOP.

It is used as well to scroll the different options in the single menu.

STOP Used to stop the system.

The system, once pushed STOP, usually doesn’t stop suddenly. It awaits for the correct positioning

of the internal valve (2-3 seconds), and then stops automatically.

If the automatic washing is activated (washing light on), the system, once pushed STOP, will perform

the automatic washing (1 min) before stops.

The push button STOP is used as well to exit from the menu function.

WASHING Used to rinse the system automatically with fresh water.

If it is pushed shortly the system will get ready to perform an automatic washing (1 minute long) once

the system will be stopped.

If it is pushed for at least 3 seconds the system will just perform a 10 minutes rinsing, without suck

up sea water.

MENU Used to enter into the MENU mode and modify some parameters.

Pushing it repeatedly the different MENU options can be scrolled.

On his turn the START push button allows to scroll the different options of the single menu.

The system recognizes the current value without any further command.

The STOP push button allows to exit from the MENU function.

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Menu options:

• WORKING TIME (timer)

It allows to select the working time of the watermaker (1-6 hours).

The timer is activated if the START button is pushed for more than 3 seconds only.

• BY-PASS

It allows to exclude the sensor (signal pressure switch) that detects the correct cycling of the

ERS. The operation with the by-pass is necessary only in case of malfunctioning of the signal

pressure switch (in example if the system gets blocks, with the message “ SYSTEM

BLOCKED”, not as consequence of a real hydraulic problem, but just as consequence of the

malfunctioning of the probe).

The bypass is used also during special operation like the shut down procedure (washing with

chemicals). The bypass activation is automatically removed after one single production cycle.

Don’t activate the by-pass if not necessary.

• AUTOMATIC START-UP. This function activates automatically the first start up procedure.

The procedure is necessary when a new machine is started for the first time, or after the

filter cartridge replacement, or a general service. The procedure allows to purge completely

the air from the system, and from the seawater and the washing fresh water hoses. The

depressurization valve must be opened before start the procedure.

• PERIODIC WASHING This function allows a periodic automatic rinsing (every 6-10 days)

with fresh water. It can be used before long inactivity periods. The single washing operation

will last about 1 minute. The consumed fresh water, for every washing, is about 18 liters.

Therefore it is suggested to evaluate if the fresh water reservoir is enough for the programmed

cycles. Selecting NO, the function will be disabled.

To activated the function select the days (6-10), exit from the menu, pushing STOP, and then

push WASHING for 3 seconds.

The display will indicate the remaining day before the first rinsing. The function is anyway

disabled pushing STOP, or after a normal production cycle.

MESSAGES

SYSTEM STANDBY

It indicates that the system is ready to be set and started.

TOTAL HOURS

It indicates that the total, progressive working time of the watermakers.

SYSTEM WASHING

It indicates that the unit is in washing mode (pumps and electrovalve on).

SYSTEM BLOCKED

The message must be acknowledged pushing STOP.

This messages means that an hydraulic block of the machine occurred, and then the pumps has been

switched off as safety procedure. In this case is suggested to perform a reset procedure and investigate

on the possible hydraulic origins of the problem.

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If the origin of the problem is just a malfunctioning of the signal pressure switch, it is possible to

start again the unit, activating the bypass.

BYPASS WARNING

This message advice or remember that the unit is working in bypass mode (then some safety

functions are disabled).

CHANGE PUMP FILTERS

This is a blinking messages that must be acknowledged pressing the key STOP

This messages suggest to replace the filter of the pump group.

3. Operation

3.2. First start-up procedure

The first start-up procedure is necessary to start the first time a new system, just installed.

The purpose of the procedure is basically purge out the air from the system.

It can be used as well after a filter replacement, or after other maintenance operations.

Preliminary checks:

� Verify that all components are connected correctly.

� Verify that the filters cartridges are installed.

� Verify that the seawater valve, and the possible drain valve, are opened.

� Verify that the reset valve is closed (lever orthogonal to the body valve) and the positioner

completely unscrewed.

� Verify that the small gray valve on the active carbon filter is opened and the fresh water pump of

the boat is on.

� Verify that the fresh water tanks are full enough (at least 50 liters) to perform the first washing

operations.

Start-up procedure:

1. Open halfway the depressurization valve (45°).

2. Activate the start up procedure throw the function of the MENU (select the specific function in

the menu mode, exit from menu mode pushing STOP, and start the procedure pushing START).

3. Close the depressurization valve when the display shows the specific message.

The procedure lasts about 3 minutes. It can anyway stopped anytime pushing STOP.

After the procedure the system is ready to start normally.

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3. Operation

3.3. Normal operation procedure

• It is always strictly recommended to select the automatic washing, pushing WASHING.

Production without timer.

-Push shortly the button START.

The control will open the depressurization valve, helping the inlet pump hose to get filled with water.

Then the pump(S) will start after 5 seconds.

The display will show the increasing production time.

-Push STOP to stop the unit.

If the washing has been selected, the system will start the washing procedure, and then will stop

automatically after 1 minute.

Production with timer.

-Select the timing (1-6 hours) throw the specific timer menu (the system will hold as well the

previous setting.)

-Push the button START for more than 3 seconds.

The display will show the decreasing production time.

The system will stop after the selected hours, performing before, if selected, the automatic washing.

Anyway the system can be stopped at any time pushing STOP.

Single washing operation (10 min. last)

-Push washing for more than 3 seconds.

The display will indicate the remaining time. It is possible anyway to stop the operation at anytime

pushing STOP.

Periodic washing

-Select the days (6-10) in the washing menu

- Exit from the menu pushing STOP

- Push WASHING for 3 seconds.

The display will indicate the remaining day before the first rinsing.

The function is anyway disabled pushing STOP, or after a normal production cycle.

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ATTENTION If the watermaker get air, (or if some other problem occurs) the automatic hydraulic valve may stop

in a central position. This means that pressure on both sides of the valve are the same and the unit is

effectively stalled and has to be manually restarted.

In this case the working pressure goes up suddenly (up to 8-9 Bar) and the pumps are switched off

from the pumps pressure switch. The pumps then have the tendency to try to restart when the pressure

decreases, and then to jam again, resulting in a typical start-stop noise. After approx. 20 sec. the

computer recognize the problem , and turn off the pumps, and the message “WARNING SYSTEM

BLOCKED” is displayed.

This event, besides being very unusual, does not damage the system, but it is necessary to reset the

valve with the following simple procedure:

RESET PROCEDURE

1. Turn the system off.

2. Open the reset valve (lever in horizontal position).

3. Screw the positioner knob clockwise until it can be moved no further.

10 turns at least are necessary.

4. Unscrew the positioner knob up to the original position, until when it is blocked

back.

5. Close the reset valve (lever in vertical position).

6. Restart the system

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4. Maintenance

4.1 Shutdown procedure It is necessary to perform the shutdown procedure before effecting standstills longer than 3 months,

for instance before laying up for winter.The purpose of the shutdown is to clean the unit of possible

deposits of limestone, and to inhibit the growth of microorganisms that may reduce the reverse

osmosis membrane's efficiency.

The following equipment is necessary in order to perform the shutdown operation:

1 ea. recipient 20 liters minimum capacity (a bucket of such capacity could also be suitable).

Two 16 mm. linen hoses of a length that allow them to be fed into the same container

A prepared shutdown solution SCHENKER CLEANING 1.

Tools for de-assembling hoses (screwdrivers, pliers, etc.)

Hydraulic connections diagram to perform the shutdown.

The shutdown procedure is:

1. Collect approx. 15 liters of unchlorinated fresh water into the bucket. The water produced by the

watermaker itself could be fine.

2. Empty the entire content of the SCHENKER CLEANING 1 solution into the picked water, and

mix carefully following the indications on the pack. Wear a protection mask in order to avoid

inhaling product dusts. The water temperature doesn't have to be lower than 25°C preferably.

3. Close the grey valve on the active carbon filter.

4. Disconnect watermaker unit drain hose and the pumps suction hose.

5. Connect two hose pieces to the drain and to the pump suction.

6. Insert the end side of the hoses into the bucket, verifying that the hoses have been properly dipped

in the solution and that they don't inhale air.

7. Open the depressurization valve at 45°.

8. Activate the by-pass

9. Start the watermaker and leave it on for approx. 20 min., checking that the hoses are properly

positioned in the container, to avoid drawing air or spilling the liquid into the boat.

10. Stop the watermaker , disconnect hose pieces, and connect the pump suction and drain original

hoses.

Chemical Cleaning Kits:

Schenker No 1 is an acid based organic cleaner.

This is used for 'pickling' the watermaker when not in use and as part of the general cleaning

process. See 4.1 Shutdown procedure

Schenker No 2 is an alkaline base organic cleaner. If the watermaker has been left standing

without pickling or has a 'bag egg” smell, cleaning with Schenker No2 will remove this.

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4. Maintenance

4.2 Verifications and periodic maintenance The following periodic procedures are to be followed to maintain trouble free operation:

OPERATION EVERY PROCEDURE

Strainer check and cleaning

Every 5 days

Check and clean

5 micron cartridge replacement

Every 15-20 days in average conditions (4 hours/day usage). Anyway replace it when the message CHANGE PUMP FILTERS

appears.

Unscrew anticlockwise the filter holder.

Active carbon filter replacement

Every 6 months Close the grey valve before open the filter

Purge periodically the air from the system, opening at 45° for a couple of minutes the depressurization valve

Every 15 days

Check regularly the pressure on the manometer located on the front panel. Adjust the pressure at about 7,5 bar throw the pressure regulation valve .

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4. MAINTENANCE

4.3 TROUBLESHOOTING

PROBLEM PROBABLE CAUSE SOLUTION

Pump do not start

Pressure switch burned or

disconnected

Total electronic failure

Restore

Activate the pump with

the miscoswitch

Pump start but stop at high

pressure

System is blocked

Dirty pump filter

Dirty membranes

Trouble in the cycling system

Perform Reset

Replace cartridge

Perform cleaning cycle

Contact a Schenker service

point

While functioning the

pump starts-stops

Pump pressure switch not

calibrated

Dirty filter or membranes

Increase the pump pressure

switch calibration

(see pag. 4)

Clean or replace

Amperage increased Pump head damaged Replace pump head

Metallic and buzzing pump

noise

Insufficient inlet pump water

flow

Check installation, water

inlet, net filter

Low production / normal or

low pressure

Exhausted batteries

Air in the plant

Seal system leak

Check battery charge

Perform bleeding

Contact a Schenker service

point

Low production / high

pressure (> 9 Bar)

Cold sea water

Filter clogged

Dirty membranes

Normal operation

Clean filter

Perform cleaning cycle

Leaking in the plant Loose connectors

ERS loss

Tighten connectors

Contact a service point

Probe (system pressure switch ) troubleshooting:

If the system goes frequently in blocked position (generating the message SYSTEM BLOCKED)

without hydraulic problems, this could possible that the origin of fault is a malfunctioning of the

probe (pressure switch)

The pressure switch can be tested with following procedure:

1. De-connect the pressure switch cables.

2. Activate the by-pass and start the system.

3. Check with a meter in ohm position, between the cables PS/PS, the functioning of the pressure

switch. If working, the pressure switch closes and open the circuit alternatively each 3-4 seconds.

4. If the pressure switch is always close or open during the functioning of the watermaker, it is out

of service and must be replaced.

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5. SAFETY WARNINGS.

• Don’t open the pump box if the power is on.

• Do not touch the pump (which can reach high temperatures) when the plant is functioning.

• Do not locate the pump near objects either inflammable or that can deteriorate if exposed to

high temperature.

• Check if the watermaker is correctly installed eventually contacting a Schenker service point.

• Verify that the hoses used for installation are in keeping with the indicated specifications.

• The water produced using clean sea water will have an average quality of 500-600 ppm TDS.

Unless the correct cleaning procedures are carried out in accordance with this manual, there

may be bacteria present in the produced water. Therefore avoid drinking the water produced

by the plant if an UV sterilizer has not been installed.

• Avoid using the plant where water is polluted (ports, or close to built-up areas, etc.)

• Children and inexperienced people shall not touch or operate the plant.

• Check periodically that no leakage is present. Do not switch on the plant when the boat is

unattended. Avoid installing the plant where an eventual leakage may cause damages and

jeopardize the safety of the boat.

• Unqualified and non-Schenker personnel shall not perform any maintenance work.

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6. WARRANTY

The equipment and the relevant accessories are guarantee 12 months starting from the date on the

delivery document of the merchandise. The guarantee does not include expendable materials

(cartridges, active-carbon filters, membranes, etc.). The “ERS” pressure amplification device is

guaranteed 36 months, provided that the annual maintenance is performed in one of Schenker service

point.

The guarantee covers every fault or defect of materials and parts and it is limited to the replacement

or repair of faulty parts. The expenses for the device disassembly and reinstallation on the boat and

for the transport of the equipment from or to our Service Point or our factory will be on customer

account.

The under guarantee delivered parts transport will be at customer’s own risk.

In case of repairs under guarantee, directly performed by our technicians on the customer boat, the

faulty parts replacement cost will be on Schenker account, while manpower and travel expenses will

be charged to the customer. The guarantee does not include the faults caused by negligence in

operating, maintenance and installation of the device (if they are not performed by an authorised

Schenker Service point).

If non-authorized personnel perform the disassembly, every obligation of this guarantee will

automatically lapse. Schenker Italia can not be held liable for any direct or indirect damage caused by

the malfunctioning of the equipment, limiting its responsibility to the repair and replacement of faulty

parts.