Schenker Modular 100 230V Electron digital User manual

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OPERATION AND MAINTENANCE MANUAL
1. Introduction
1.1. General
1.2. Technical data
1.3. ystem 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. hutdown procedure
4.2. Maintenance and recurrent inspections
4.3. Troubleshooting
5. afety cautions
6. Warranty
Rev. 2011

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1. Introduction
1.1 General
Thank you for choosing a chenker Watermaker, and we are sure that the plant will contribute to
make your cruises more comfortable and more pleasant.
As all the equipment aboard, 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 aboard for a quick reference.
The Modular plant, as alternative to the high pressure pumps of traditional plants, utili es the EN-
ERGY RECOVERY SYSTEM patented device, which amplifies the pressure of common low pres-
sure pumps, and recoup all the hydraulic energy back from the membranes, allowing an high energy
efficiency and the possibility to supply the watermaker directly from the batteries.
The ENERGY RECOVERY SYSTEM operating components are reduced to the minimum, thanks to
2 international patented solutions that eliminate the necessity of pilot valves.
The lack of high-pressure pumps makes the system silent and vibrations free, and enormously sim-
plify the use because no adjustment is necessary for its operating.

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1. Introduction
1.2 Technical data
WATERMAKER GROUP
Dimensions
Length: 75 cm
Width: 33 cm
Height: 41 cm
Dry weight: 47 Kg.
Connections:
Seawater intake holder for hose int. diam. 20 mm.
Salt water outlet holder for hose int. diam. 16 mm.
Fresh water outlet compression fitting for hose int. diam. 6 mm. int. X 8 mm. external
PUMP GROUP
Dimensions
Length: 37 cm
Width: 15 cm
Height: 23 cm
Dry weight: 11 Kg.
Connections:
Seawater intake holder for hose int. diam. 20 mm.
Salt water outlet holder for hose int. diam. 20 mm.
Filters: 5 micron 9” ¾ propylene
Power supply: Pump: 230 VAC 50 H
Computer : 12-24 VDC (from batteries or charger)
Power consumption: average of 400 Watt
Production performance: 100 Lit/h +/- 15% @ seawater 25 °C - salinity 35.000 ppm
Quality of water produced: average 500-600 ppm TDS
CEE conformity: In compliance with directives 89/392 CEE sect.1 (general safety ma-
chines requirements) , 89/336 CEE (electromagnetic compatibility).

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1. Introduction
1.3 ystem description
The Modular 100 systems are based on 2 main units:
 PUMP AND FILTER GROUP.
This unit have the duty of picking the sea water up and send it to the watermaker unit at a certain
pressure (about 7,5 –8 Bar).
The pump is equipped with a pressure switch for high-pressure shutdowns, calibrated at about 12
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. The terminal P1 receives the start-stop consent from the computer. 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 mi-
crons 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
4. Depressuri ation valve
5. Positioner
6. Reset valve
The watermaker group is constituted of the following components:
Reverse osmosis membranes, installed inside blue color high-pressure housing. Their job is to sepa-
rate the intake high-pressure seawater into two flows: one for the salt-water drain and one for the
fresh water production.
Energy Recovery ystem. 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 periodi-
cally by the watermaker unit. The unit is constituted of 2 cylinders, and a central body containing the
hydraulic valve necessary for the system functioning.
Manometer. It is located on the front panel, and it measures the pumps running 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%.
Pulsation dimmer. It is constituted of a cylindrical recipient and has the function to dampen the
pumps pressure oscillations during the watermaker functioning. The dimmer needs to be pre-charged
of air through the apposite valve (similar to the common tire valves) located on the left of the device.
The air pressure shall be of 6,5 Bar. The pressure dimmer is charged in factory at the right pressure,
but it is opportune to verify the pressure level at the first start-up.

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Depressurization valve. It is utili ed only during the air bleeding phase, at the first plant start-up. It
is recogni able by a bleu lever and it is located on the right of the watermaker. Its function is to de-
pressuri e the plant and to allow the bleeding of air at the first plant start-up. The valve must be
closed during normal working conditions (vertical position), and it is opened during the air bleeding
operations (hori ontal position).
Positioner: It is a stainless steel threaded arm, with a black knob, located on the right side of the
unit, beside the reset valve. Its function is to reset the unit in case the system blocks during the restart.
Reset valve. It is installed next to the watermaker right front corner and it is recogni able 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 in case of a system block. It must be opened be-
fore acting on the valve positioner.
Probe (pressure switch). It is a little steel device, mounted on the aluminum structure. It is con-
nected to the computer throw the cables PS / PS . Its function is to check the cycling of the machine .
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 P1and EV allow the direct command of the pump 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
Emergency
microswitches
Electric
connections

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 ACCE ORIE
The main 100M220 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 de-
bris.
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 pressuri ed
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 ver-
tically 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 100 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 hy-
draulic 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 con-
densation.
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 jeopardi e its safety.
The pump must be installed hori ontally 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 group.
Concerning the watermaker unit installation there are not height limits in comparison to the seawater
level. Avoid to install the system wherever any possible leak may cause damages to the boat or jeop-
ardi e its safety, since possible leaks due to accidental causes (pipe bursting, hose clamp loosening,
equipment failure, etc.) may cause water losses.
The hydraulic intake and outlet connections are positioned, in the standard version, 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 hori ontal, suitable to sustain the weight of
the group (approx. 55 Kg). It could be necessary to reali e a suitable wooden or fiberglass structure if
an hori ontal support is not available. The watermaker unit is equipped with vibration-damping de-
vices, but however it is preferable to not install the unit on a plan particularly subject to vibrations.
Possible locations of the watermaker group are: engine compartment, closets, and peak tank. It is ad-
visable 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.

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The watermaker is normally fixed on the support structure by passing bolts. The max. allowed room
temperature must be 40°C.
2. Installation
2.3 Water intakes
The necessary hydraulic intakes are:
• eawater intake.
It is ideal a specific sea water intake, si e 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 si e,
- 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 en-
gine.
• Fresh water intake for washing.
Tee in downstream of the vessel's fresh water pressure system (Domestic water from tank) .
The following conditions must be respected :
The flow of the existing fresh water pump must be min 18 lit/min.
Flushing must always be carried out executed with the pressure water system ON.
• alt-water waste. (After passing through the watermaker)
The salt-water drain shall be ½” minimum si e and it has to be preferably above the seawater level.
It is possible to use offtakes from existing apparatuses, provided that it is not the engine cooling wa-
ter drain or apparatuses that drain out water with elevated pressure.

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2. Installation
2.4 Hydraulic connections
Pressuri ed 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
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. rein-
forced hose. An inadequate hose could burst, jeopardi ing seriously the safety of the boat.
“Armovin”
type hose
int. dia.
20 mm.
Reinforced hose
PN15 min int.
dia. 20 mm.
Plumb to
pressure
side of
boat fresh
ater sy
s-
Exhausted
discharge
“Armovin”
type hose
int. dia.
16 mm.

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Hydraulic connections:
Low pressure
max 3 bar
-connections sea ater inlet- net filter -
backflo valve inlet.
PN 5 stainless steel spring
type hose
Section: 20 mm int. diam.
Medium pres-
sure – max 13
bar
-connections fresh ater pressurized
system – carbonfilter - backflo valve
pump inlet - pump outlet - 5 microns
filter– atermaker inlet.
PN 15 reinforced hose
Section: 20 mm int. diam.
Low pressure
max 3 bar
-connection atermaker’s exhaust dis-
charge
PN 5 stainless steel spring
type hose
Section: 16 mm int. diam.
Low pressure
max 3 bar
- Connection to the fresh ater tank Small 6X 8 blue pipe (fur-
nished)
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

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IN and OUT connections of the watermaker
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).
Fresh water connection
The connection has to be made, using the small
hose furnished with the equipment, and relevant
endowed fittings.
The connection has to be made between the little
polyethylene pipe that comes out the water-
maker 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 where to connect the endowed
male connector.

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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 condensa-
tion 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 upplies
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 auto-
matic, 2 poles, circuit breaker with 5 ampere cutoff current and all the protection (including a differ-
ential 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.
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.)

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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:
TART 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.
TOP 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.
WA HING 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 recogni es the current value without any further command.
The STOP push button allows to exit from the MENU function.

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Menu options:
• WORKIN 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 fil-
ter 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 depres-
suri ation valve must be opened before start the procedure.
• PERIODIC WASHIN 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.
ME AGE
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.

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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 investi-
gate on the possible hydraulic origins of the problem.
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 func-
tions 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 com-
pletely 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 depressuri ation 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 depressuri ation 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 WA HING.
Production without timer.
-Push shortly the button START.
The control will open the depressuri ation valve, helping the inlet pump hose to get filled with wa-
ter. 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 previ-
ous 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.
ingle 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.
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 com-
puter recogni e 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. crew 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 hutdown 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 osmo-
sis 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 CHENKER 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 in-
haling 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 .
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 PROCE URE
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).
Unscre anticlock ise the filter
holder.
Active carbon filter
replacement
Every 6 months
Close the grey valve
before open the filter
Purge periodically
the air from the sys-
tem, opening at 45°
for a couple of min-
utes the depressuri-
zation valve
Every 15 days
Check the pressure on the manometer located on
the front panel.
The working pressure depends on many factors
such as water temperature, salinity level of sea-
water, battery voltage, cleanliness of membranes
and type of installation.The pressure, under mid
range working conditions is in the range 7,5-8
bar. There is a small pressure peak, of about 0,5
Bars during commutations.
 Membrane replacement