Pure Water Whisper 30 User manual
Index
1.0 General Theory of Operation………………………………………………………... 2+3
2.0 Whisper 30 Integral…………………………………………………………………… 3
2.1 The general scope of application…………………………………………… 3
2.3 Explanation………………………........................................................................... 4
2.4 Quality Monitor……………………………………………………………………….. 5
3.0 Performace……………........................................................................................... 6
4.0 Installation……………………………………………………………………………… 6
4.2 Preparation for Installation ………………………………………………………… 7
4.3.1 Feed Pump, Pre-Filter and Hose connections…… ……………………………..... 8
4.3.2 Product Water connection…………………………………………………………… 9
4.4 Hose connections to PH Stabilizer (Only COMPACT Models)…………. 9
4.4.1 Electric Control Box (Option)………………………………………………… 10
5.0 How to use the System………………………………………………………………... 11
Preservation Configuration Flow Diagram………………………………………… 12
6.0 Maintenance……………………………………………………………………………... 13
6.2 Short Term Storage/Fresh Water Flush…………………………………………… 13
6.3 LONG TERM STORAGE / PRESERVATION PROCEDURE……………….. 14
6.4 Re- Enter Service after Long Term Storage………………………………………… 14
6.5 Membrane Replacement……………………………………………………………….15+16
7.0 Flow Diagram……………………………………………………………………………. 17
8.0 Wiring……………………………………………………………………………………… 18
8.1 Connection of a 230V Motor………………………………………………………….. 18
8.1.2 12/24 V DC Motor………………………………………………………………… 18
9.0 Exploded Parts View ETD……………….…………………………………….. 19
9.1 Parts ETD………………………………………………………………………… 20
9.2 The John Guest System……………………………………………………… 21
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Whisper 30 integral, Modular Handbook
The Sea Star Whisper 30 modular-Frame individual parts:
ETD Basic unit Filter-system Whisper
Vane Pump Pre-Filter
Vane Pump 230V
The dimensions of Motor and pump are subject to change, because different motors are used.
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Whisper 30 integral, Modular Handbook
Vorsichtsmaßnahmen Precautionary
Bitte beachten Sie folgende Punkte bevor Sie Ihre SEA STAR Anlage einbauen und in Betrieb nehmen!
Please pay attention to the following point’s bevor you install the system.
1. Die Anlage sollte innerhalb von 12 Monaten nach Auslieferung in Betrieb genommen werden.
You should take the unit into service within 12 month.
2. Die Anlage sollte ca. alle 7 Tage, oder in sehr heißen Gebieten alle 3 Tage mit Seewasser betrieben oder mit
Frischwasser gespült werden. You should flush the unit every 7 days ,or in hot climate every 3 days.
3. Wenn die Anlage für eine lange Zeit außer Betrieb ist, sollte sie spätestens nach 12 Monaten
gespült und neu konserviert werden. If you have the unit not in use for a very long period, you should flush and
preserve the unit every 12 month.
4. Betreiben Sie die Anlage nie in Häfen oder in Gebieten wo Kraftstoff und Öl im Seewasser ist.
Don’t use the unit in ports and areas where the seawater is contaminated with fuel and oil.
5. Wenn Sie die Anlage in Frisch- oder Brackwasser betreiben sind keine weiteren Maßnahmen zu ergreifen.
No action has to be taken if you use the system in fresh or brackish water.
6. Schützen Sie die Anlage vor Frost. Prevent the unit from freezing
7. Lassen Sie die Membran nicht austrocknen. Wenn Sie die Membran aus irgendeinem Grund
ausbauen, ist es wichtig, dass sie sofort versiegelt wird. Don’t let the membrane dry out.
8. The seawater inlet must be designed, that the water is pressed in during cruise.
9. The pre-filter has to be checked regularly, during operation period at least every 14 days.
10. We recommend a fresh water flush after every use.
Caution!!!
The amount of produced fresh water is depending on Sea Water temperature and salinity.
For temperatures below 25°C you lose per 1°C –3% of rated fresh water output performance.
If the salinity is higher than 35000 PPM you could also lose output performance.
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Whisper 30 integral, Modular Handbook
1.0 GENERAL THEORY OF OPERATION
1.1 REVERSE OSMOSIS THEORY
Reverse osmosis, like many other practical scientific methods, developed from processes first
observed in nature. Osmosis is a naturally occurring phenomenon in which a semi-permeable
membrane separates a pure and a concentrated solution (a semi-permeable membrane is defined as
one that preferentially passes a particular substance). Every fluid has an inherent potential that is
directly related to the type and amount of solids in solution. This potential, referred to as osmotic
pressure, increases in proportion to relative concentration of a solution. A concentrated solution,
therefore, has an osmotic pressure that is higher than that of a pure solution. In an osmotic system,
the less concentrated solution will attempt to equalize the concentrations of both solutions by
migrating across the semi-permeable membrane. When enough pure solution migrates across the
membrane such that the inherent potential difference between the solutions in no longer higher than
the osmotic pressure of the membrane, the purer solution will stop flowing. If the pressure on the
concentrated solution is increased to above the osmotic pressure, fluid flow will be reversed. This
condition, called Reverse Osmosis, can be established by artificially pressurizing the more
concentrated solution using a high pressure pump. In this type of system, the concentrated solution
(normally referred to as feed-water) will become more concentrated as pure water flows out of solution
and across the membrane to the permeate side. Discounting the effects of feed-water
temperature and salinity, the operating pressure normally required to produce
significant amounts of pure water is at least twice the osmotic pressure of the
membrane being used.
Figure 3.0 - Simple (Reverse) Osmosis Process
1.2 APPLICATION OF REVERSE OSMOSIS
Seawater contains many kinds of solids dissolved in solution. The most prevalent is common table salt
(Sodium- Chloride). Other minerals that may be present in solution are substances that usually contain
Various Compounds of Calcium and Sulfate. The sum of all of the solids dissolved in a particular
sample of water is referred to as Total Dissolved Solids or TDS. Seawater normally averages 32,000
ppm (parts per million) TDS although variations of 5000 ppm are common in various parts of the
world. The fundamental goal any desalination process is a significant reduction in the amount of
dissolved solids in water.
Abb. 1.1
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Whisper 30 integral, Modular, Handbook
In a Reverse Osmosis desalination system, most of the dissolved solids do not pass through the
Membrane but are instead carried along the membrane surface. This rejected water, referred to as
Brine, becomes increasingly more concentrated as it flows across the surface of the membranes and
is eventually piped to drain. The product water that flows through the membrane is referred to as
Permeate. The percentage of feed-water that enters the unit converted to permeate is called the
Recovery rate. A higher than optimal recovery rate (which can be obtained by increasing the back
Pressure on the unit above the recommended range) results in greatly increased membrane fouling
Rates and a significant decrease in the operational life of the membranes.
It should be noted that no system is capable of removing all 100% of the dissolved solids from
Seawater. Designed to reject approximately 99% of the TDS, the system allows 1% of the 32,000 ppm
TDS in the seawater to pass into the product water. This yields product water of less than 500 ppm,
the recommended TDS for drinking water. A system such as this is said to have a salt passage of 1%.
2.0 Whisper 30 integral
2.1 The general scope of application for the WHISPER integral systems
You can use the WHISPER systems without restriction in all oceans around the world and in brackish
water areas. Take care in areas where sea water is contaminated with plankton. You must than check
the strainer more often. Clogging of the strainer could cause the vane pump run dry and fail.
The advantages of the WHISPER systems are:
No pressure regulation, the system regulates the pressure by itself.
A whisper quiet system.
Because of the energy recovery a good balance of power consumption.
Integrated membrane, no high pressure hoses, compact installation.
Function
The heart of the system is the ETD (Energy Transfer Device)
The ETD produces out of a large volume of water with low pressure, high pressure, with a low volume of
water. The built in Energy recovery circuit pushes the ETD and saves energy by using the concentrate
back flow.
The advantage of this system is:
The system produces almost no noise.
No high pressure regulation is needed, the system regulates by itself.
It is a switch On/Off system.
New ceramic parts extend the time between overhaul.
More Water is pumped through the membrane which extends membrane life and increases water
quality.
.
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Whisper 30 integral Modular Handbook
2.3 Explanation
High Pressure Gauge (at the ETD)
The High pressure Gauge shows the operating pressure. The range is between 35 and 55 Bar, depends
on the type of Membrane used.
Low pressure Gauge (at the panel)
The LP Gauge shows the pressure of the Vane Pump. The working pressure is 6-10 Bar.
Feed Pump (Vane Pump)
The feed pump pumps the water to the ETD
Flowmeter
The Flow Meter shows the amount of produced water in GPH (US Gallon per hour)
1 US Gallon = 3,78 Liter. From Jan. 2016 the flow meter is L/h
Sea Water Filter (Strainer)
The Strainer is a 50µ washable filter and reduces the particles to protect the vane pump.
Pre- Filter
The Pre-Filter is a 5µ changeable filter cartridge and protects the Membrane from fine particles.
Note: The pre-filter should be checked regularly, at least every 14 days in an operation period.
Sample Valve (at the panel)
With the Sample Valve you are able to take a water sample of your product water..
Fresh Water Flush System (FWF System)
The Fresh Water Flush System is a Carbon Filter activated with the valve at the Strainer.
The Carbon Filter reduces the possible chloride in the ships water system.
Clean/Rinse Kit Part Nr. 940
The Clean-Rinse Kit contains of a Three- way Cleaning Valve and a three Way selector Valve 1.
If you order the Kit with the unit the valves are already mounted.
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Whisper 30 integral Modular Handbook
2.4 Quality Monitor (COMPACT Versions only)
The Quality Monitor shows the quality of the product water in PPM TDS (Part per Million Total dissolved
Solids)
When starting the system the quality is always for a short period ( 30-45sec) high salinity. Shortly the
monitor starts to count down. As soon as the quality reaches the pre-set value(factory set point is
500PPM) the water is produced into the tank.
The controller is activating a diversion valve to control the destination of the product water.
The diversion Valve is located at the right side of the Main control panel. There is an emergency gray
button, to override the valve. Only to be used, when the controller is not working. Push and turn to the
right to lock.
5
Digital Display ppm
Switch OFF- AUTO- ON
Normal position is AUTO.
OFF= Controller is OFF
AUTO= Controller is in the AUTO
position. Automatic product water
transfer to tank.
ON= Product water is always
produced into tank.
LED display: RED Controller is OFF
Amber= Water is produced into tank.
Green= Water is going over board
Calibrating screw
Set Point for adjusting product water
set value. To readjust, push the
yellow set button and turn with a tiny
screwdriver the desired set point.
Return- push MEAS
Whisper 30 integral Handbook
3.0 Performance
Sea Star Whisper 30 integral, Modular
Weight: 35 Kg
Power consumption:
Whisper 30 integral, Modular 12V - 16A24V- 8A 230V 1,6A
Operational Parameter:
Pressure: High Pressure: 500-950psi 35-55Bar
Low Pressure: 7-12 Bar
Maximum Salinity: 46000 ppm ( ppm= Parts per million )
Temperature Range: 1° C to 45° C
PH –Range: 2 - 11
The produced fresh water is better than WHO requirement.
4.0 Installation
4.1 Required Material
¼“ PVC Hose ( for the product water line )
½“ PVC Hose ( for the overboard Line )
½“ PVC Hose ( for the Sea Water Line )
ca. 10 hose Cleats (1/2“ Niro )
Tie-Raps
15-25 mm² Cable (Option) depends on the length
Breaker 25 A (Option) Relay (Option)
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Whisper 30 Modular Handbook
4.2 Preparations for Installation
For installation pay attention to the Flow Diagram on Page 19
Sea Water Filter (Strainer)
Place the Strainer direct after the Sea Cock. The Strainer has a 50µ washable Filter inside.
At the Strainer is the Selector Valve mounted. Here you can select either Sea Water operation or Fresh Water
Operation. The lower connection is for Sea Water, the upper connection is for the line from the Carbon Filter
(FWF System) or, if installed from the Selector Valve 1 if a Clean/Rinse Kit is installed.
Vane Pump. (Feed Pump)
The outlet of the Strainer has to be connected to the inlet of the vane pump.
Install the Vane Pump at or better below the waterline.
For the first use, fill the Vane pump with water.
Pre-Filter
The Pre-Filter can be installed above the waterline.
Product Water connection
The product water can be picked up at the top of the flow meter. There is an 8mm hose connection. Connect this
to the sample valve at the 5” post carbon filter. This is the lower hose barb. The hose barb at the right is the
sample line.
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Whisper 30 integral Handbook
4.3.1 Feed Pump, Pre- Filter and Hose connections
The Sea Water feed should be a marine grade Sea Cock, that you can close the Sea Cock individually
Step 1 Connect the Sea Water intake with a re- enforced ½“ hose to the lower hose barb at the valve at the
Strainer. Connect the outlet of the Strainer with the intake of the feed pump. The upper connection of the
Valve at the Strainer has to be connected with the outlet of the Carbon Filter. (FWF System) The inlet of
the Carbon Filter must be connected with your boat pressure water.
.
Step 2 Connect the outlet of the Feed Pump with the inlet of the red Pre-Filter.
Step 3 Connect the outlet of the Pre-Filter with the inlet of the ETD, marked with E.
Step 4 The outlet of the ETD is marked with S. Connect a ½” hose to the outlet over board.
Note!!
All connections past the Feed Pump have to be checked carefully, because there is already a
pressure of 7-10 Bar. Tighten the hose cleats carefully and check for leaks by the first use.
Use only reinforced water hoses which can stand the pressure of 10 Bar.
--------- Pre –Filter installation completed ---------
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Whisper 30 integral Modular Handbook
4.3.2 Product water connection.
At the top of the product flow meter, there is an 8mm hose barb. This is the product water pick
up. Refer to the flow diagram on page 17.
NOTE: Any connections to the ships freshwater Tank has to be connected always from the top of
Tank.
4.4 Hose Connections to PH Stabilizer (Only COMPACT Models)
Step 1 The Pre –Filter installation is completed
Step 2 The Product Water outlet at the Manifold has to be connected with the PH Stabilizer.
Note: The PH Stabilizer is not working as a filter, but as an injector. Therefore the flow is vice
versa. OUT is where the line from the Manifold Position Fresh Water must be connected and IN is
going to ships fresh water tank.
--------- Hose Connections completed ---------
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Whisper 30 integral Handbook
4.4 .1Electrical Control Box with Relay 12/24V DC (Option)
This is an option if you have long way from your ships Battery to the Feed Pump Motor
Warning!
Disconnect power from the system.
Step 1 Disconnect Power
Step 2 Connect the Battery Positive cable to the 10mm Bolt, marked red.
Step 3 Connect the negative cable with the not marked Bolt.
Step 4 The Cable to the Feed Pump is factory connected.
Step 5. Look into the connection Box of the Motor. The Positive Bolt is marked with a +at the bottom. Use a light to
find it out. Wrong connection of the motor will result in wrong direction turning and the pump rotation is
wrong. Then connect the Feed Pump Cable to its respective side.
Step 6 Now look for 2 black cables coming out of the box. These cables have to be connected to the switch at the
panel. Check for function.
NOTE!
If you have a long way from ships Battery to the Motor and Panel, you should order the Control Box
Option. Then you have the possibility to draw Battery cables with 16mm² or more to the Motor.
We recommend using the unit with engine running.
--------- Electrical Connection completed---------
Abb. 4.5a
View of the
box
10
Cabel to the feed
pump. Blue or red is
Positive
Black is always
Negative
Power Relay
Here are the
connections to the
switch at the unit.
Batteriy
Positive
Battery
Negative
Whisper 30 integral Handbook
5.0 How to use the system
5.1 Filling and starting the system.
Step1 Place the Sample Valve in Pos. SAMPLE and guide the hose to a drain.
Step 2 Open the Sea Cock and let water flow into the system.
Step3 We recommend bleeding the system carefully.
Step 4 Start the system and open the bleed Valve at the red pre-filter. When water is coming out, close the
valve.
If you don’t see water coming out at the overboard outlet within a Minute, stop the
system and check the position of the valves.
Step4 If everything is fine and the overboard brine flow is free of air you can watch the pressure indicators.
The low pressure at the panel should read between 8 to 10 Bar and the high pressure Gauge at the ETD
should read in normal seawater 45-55 Bar. If you test the unit in brackish water the pressure is lower.
Step 5 ONLY FOR COMPACT MODELS. Watch the Quality Monitor. After 1-2 Minutes, the water quality should
be below 500 PPM and the system produces water into the tank.
Step 6 NOTE!!
If you use the system for the first time or you start the system after having done long term storage, drain
the product water for about 5 minutes to allow all chemicals drained.
Step 7 Check the product water either with a handheld tester (Option) or just taste it.
Step 8 If you find the water quality good, stop the unit and place the sample valve to Pos. Tank. Start the unit.
Now the product water is produced into the tank.
Step 9 Check all connections for possible leaks.
---------The unit is now ready for use ---------
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Whisper 30 integral Handbook
Preservation Configuration
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Sea Star Whisper 30 integral Handbook
6.0 Maintenance
6.2 Short Term Storage/Fresh Water Flush
Ideally, the SEA STAR performs optimally when the RO unit is used periodically. However, the
Likelihood of bacterial and biological growth in the membranes increases, when stagnant seawater (in
extended periods) is in contact with the membranes. A freshwater flush procedure is necessary to
prevent clogging and growth of organic contaminants in the RO system and its membranes. This
method pushes out older stagnant seawater (saltwater) out of the membranes and replacing it with
freshwater (non-saltwater), leaving less chance of fouling the membranes. The freshwater flush
procedure should be used when the unit will be placed idle or in “stand by” condition for more than
seven days OR idle for three days in hot, tropical climates. We recommend a fresh water flush after
every use. Although they do not attack the membranes or other system components directly, high
concentrations of biological matter can block enough of the product water channels to cause a
reduction of as much as 40% of the total system capacity.
PERFORM A FRESHWATER FLUSH TO THE RO UNIT WITH NON-CHLORINATED FRESH
WATER ONLY. EXPOSING THE MEMBRANES TO CHLORINATED WATER WILL CAUSE
IRREVERSIBLE DAMAGE AND VOID THE RO UNIT WARRANTY. THE FRESHWATER FLUSH
SYSTEM USES A CARBON FILTER INLINE BEFORE SYSTEM TO CONSUME THE CHLORINE.
Turn the handle at the strainer to Fresh Water Position (Selector Valve)
Start the unit.
Let the system run for app. 10 minutes. At least so long, until the high pressure has
dropped.
Stop the system.
Place the selector Valve back to Sea Water.
For storage longer than one week, replace the 5µ pre-filter. An old filter can contaminate
the system.
Now you can leave the System in Stand-by for 3-4 Months. In very hot climates only on month.
Note: A fresh water flush after using the system will increase the lifetime of the membrane. However, you should not
have sea water in the system for more than 2 days.
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Whisper 30 integral Handbook
6.3 Long Term Storage/Preservation
During periods when the RO unit is to be shut down for an extended period of time, it is
necessary to re-flush the unit every three month OR to circulate a preservative solution
through the membrane to prevent the growth of biological organisms. Use the following
procedure to preserve the RO elements:
PRESERVATIVE CHEMICAL #3 IS A FOOD GRADE PRESERVATIVE. SEE WARNING
LABEL ON SIDE OF PACKAGE AND ADHERE TO ALL SAFETY PRECAUTIONS ON
LABEL. Do not breathe the chemical
NOTE: You should allow your unit’s product water to run to drain for the first 30
minutes after preservation.
Pay attention to the Diagram Preservative Configuration on Page 12
Step 1 Flush the system with Fresh Water (6.2)
Step 2 Place the position of the Sample Valve to SAMPLE and guide the hose to the Cleaning Storage
Tank. This can be a simple bucket.
Step 3 Place the Selector Valve 1 to the right. There should be a hose to the cleaning storage Tank.
(Bucket) Place the Selector Valve at the Strainer to Fresh Water pos.
If you don’t have the Selector Valve 1 installed, you have to draw a hose from the pumps inlet
to the cleaning storage Tank.
Step 4 Mix 4 Tablespoons of Chemical Nr. 3 into the Clean/storage Tank (Bucket) filled with non-
chlorinated water. ( 10L)
Step 5 Start the system until the bucket is empty.
Step 6 Stop the system. It is now preserved.
Note: If you have used Sea Water for preservation please repeat the preservation with fresh water as
soon as possible.
Important: Repeat the preservation procedure annually. Even if you don’t use the system you can keep
your membrane in a good condition.
6.4 Re-Enter Service after Long Term Storage
Before starting the system after a Long Term Storage change the 5µ pre-filter cartridge.
You can use the old cartridge for preservation again.
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Whisper 30 integral Handbook
6.5 Membrane Replacement
15
Follow the instructions to change the
membrane.
Make sure that there is no pressure
anymore in the system. This could
take up to 90 Minutes after stopping.
Disconnect the product water
hose connection.
Unscrew both End caps by
using a special Tool.
This Tool is available in special
hardware shops.
After you have unscrewed the End Caps pull
the membrane at the left side out. Use a rubber
Hammer and give a little push from the right
side on the membrane.
Clean the tube with non-chlorinated water.
Unpack the new Membrane which is in a
vacuum sealed package.
Whisper 30 integral Handbook
Membrane Replacement
16
Guide the new Membrane from the right side
into the tube.
Pay attention that the Membrane is exact in
the middle.
Now you can screw the Endcaps on the tube.
Connect the Product Water
connection.
To start the system refer to chapter
Starting and Filling the system.
Whisper 30 integral Handbuch
7.0 Flow Diagram Normal Operation
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