- POINT OF CONTACT
- Q&A
- PRODUCT DESCRIPTION
- DELIVERY
- INSTALLATION DIAGRAM Dessalator DC FREEDOM D100
- FAQs
- FOR WHAT IS THE MINERALIZING CARTRIDGE USED FOR?
- HOW DOES THE AUTOMATIC RINSING WORK?
- HOW TO WINTERIZE YOUR WATERMAKER
- MEMBRANE REPLACEMENT
- WHAT IS THE REVERSE OSMOSIS PRINCIPLE?
- HOW DOES YOUR WATERMAKER WORK?
- MEMBRANES - DELICATE COMPONENTS
- Extreme temperatures:
- Drying out of the membranes:
- Recommendations for use:
- AFTER SALES SERVICE
- MANUFACTURER
- PICKLING TIPS
POINT OF CONTACT
Vincent Koster - Systems Engineer
- vincent@dessalator.com / contact@dessalator.com
- Cell: +31 (0)6 41 76 76 59
- Tel: +33 (0)4 93 95 04 55
Q&A
PRODUCT DESCRIPTION
The advantages of this product are:
- its small dimension
- its high outputs
- its modular design allowing to adapt to small spaces
- its reliability recognized for more than 30 years
- Remote control version
FREEDOM 100: 12/24 Volts, 600W
The membrane unit includes 1, 2 or 3 membranes
Membrane dimensions:
- D100: L 70cm x 27 cm
All functions and information are brought together on your control panel.
DELIVERY
DESSALATOR products are delivered complete with all accessories. All components meet current EEC standards:
- Strainer and hull valve
- Solenoid valve for automatic rinsing
- Pre-filter filtering out solid particles up to 5 µm and its wrench
- Fuse or circuit breaker according to the model
- HP piping: 2 hoses and 4 special DESSALATOR connectors
- Piping for the production of fresh water from membrane to panel.
INSTALLATION DIAGRAM Dessalator DC FREEDOM D100
FAQs
FOR WHAT IS THE MINERALIZING CARTRIDGE USED FOR?
- If you sail during several months and you only drink the produced water, you should preferably install this cartridge.
- Complete mineralizing filter (185 Euros)
- Mineralizer - 1 dose (13 Euros)
HOW DOES THE AUTOMATIC RINSING WORK?
- A solenoid rinsing valve is mounted on the pre filter(s) which is activated for two minutes when reducing pressure.
HOW TO WINTERIZE YOUR WATERMAKER
Several solutions are possible:
- If someone regularly comes on board, rinsing with the three-way valve on the pre pump will be sufficient; this should be carried out while the watermaker is idle.
- For extended periods (5 to 6 months) of storage, we have developed a sterilizing cartridge (see the page sterilizing cartridge).
- Close the sea water inlet valve.
- Open the sterilizing cartridge
- Remove the top grid
- Place the foam filter at the bottom of the filter
- Pour the powder into the cartridge
- Replace the top grid and close the cartridge
- Check that the seal is properly positioned.
- Remove the 5μm cartridge from the pre-filter.
- For the range 12, 24V and DUO:Remove the 5µm cartridge from the pre-filter
- For the range 12, 24V and DUO :Replace the 5µm cartridge with the sterilizing cartridge ST2.
- FREEZING CONDITIONS: If the boat stays in a very cold region, please take a bucket containing 8 litres of warm fresh water mixed with one glycerine litre (you will find it in a drugstore) and let the seawater inlet hose suck up the mixture by starting the watermaker without pressure. You should then empty the flow meter tube on the control panel by blowing into the blue hose connected to the membranes. In normal winter conditions, only empty the flow meter tube and use the sterilizing cartridge ST2.
FAQ: If the watermaker is not used and you cannot rinse it once a month with fresh water, please sterilize your membranes.
INSTRUCTIONS FOR STERILIZATION OF THE MEMBRANES WITH OUR ST2 CARTRIDGE
Close of the dessalinator:
9. Replace with the sterilizing cartridge
10. Set the rinsing valve to pressurized fresh water and leave a little sterilizer in the filter.
11. Do not run the desalinator at this point.
12. The sterilization remains effective for six months at most. (Repeat after this time as necessary).
You can download the PDF brochure
MEMBRANE REPLACEMENT
- After having unscrewed the high pressure and low pressure hoses, please remove the nut covers, install the membrane unit on an horizontal surface, unscrew the nuts with a 17mm wrench, remove the rods, remove the alloy brackets, disconnect the membrane(s) from the interconnector, tighten each membrane black end cap in a vice, then pull to get the membrane end cap out, get the membrane out of its location
- Push the membrane inside, with the O-ring on the red side and a little washing-up liquid on this O-ring, and slide a little screwdriver around the O-ring to help it entering and push always on the outside of the membrane (and not on the center tube).
- Fit the membrane end caps together, then in a horizontal position, fit the interconnector again.
- Screw carefully the rods again by turning around the bracket, tightening crosswise, the mounting of the high pressure connectors should be done with a little Loctite 542 on the two cones.
WHAT IS THE REVERSE OSMOSIS PRINCIPLE?
- Sea water is forced at high pressure through the membranes which act as "molecular sieves", only allowing pure fresh water to pass through. Most dissolved solid particles will not penetrate the membranes. This waste, along with the remaining saline solution, will flow on the surface of the membranes and will be rejected.
- Not all particles dissolved in sea water can be eliminated. The system is designed to reject 99% of the TDS (Totally Dissolved Solids); approximately 2% of the 35,000 PPM/TDS will pass through the membranes. This guarantees drinking water with a TDS value of 500 (average).
HOW DOES YOUR WATERMAKER WORK?
- Sea water enters the inlet valve which penetrates the hull. This sea water is then routed by the pre-pump through the 25 µm and 5 µm pre-filters. The filtered water is forced through the membrane by the HP pump (operating pressure 60 to 65 bars). The pressurized water passes through the surface holes of the membranes depositing the salt and minerals, which are then rejected into the sea with the remaining solution.
- The now fresh water flows over a detector which measures its salt content: If the desalination achieved is satisfactory, the three-way valve automatically directs the fresh water to the tank.
The volume of drinking water being treated at any time is monitored by a flowmeter on the control panel.
MEMBRANES - DELICATE COMPONENTS
- Reverse osmosis membranes must be carefully maintained as they are the most delicate elements - of the reverse osmosis system. We recommend that the maintenance instructions are carefully followed to prevent the membranes from damage and to ensure the guarantee is not invalidated.
- Maximum production capacity of the desalinator is achieved with a sea water temperature of 25°C. The functioning of the membranes will vary depending on the temperature of the sea water and on the sailing area.
Extreme temperatures:
- Overpressure due to expansion caused by freezing can rupture the membranes and prevent the salt from being filtered out.
- High temperatures may also prevent salt from being removed.
Drying out of the membranes:
- Either sea water before treatment, fresh water provisionally stored or sterilizing liquid if the water maker is not used for extended periods of time
Recommendations for use:
- The various quality and salinity grades of sea water affect both membrane efficiency and the working of the desalinator in Marinas.
- However, if the desalinator has to be used in such conditions, only run it for very short periods and as soon as clean sea water becomes available clean the membranes and run the system without pressure for 30 minutes with the pressure regulator open.
AFTER SALES SERVICE
MANUFACTURER
Dessalator® ZI des 3 Moulins, 282 rue des Cistes Bâtiment Euro 92 06600 Antibes Téléphone : +33 (0)4 93 95 04 55
PICKLING TIPS
From Ruediger T. Von Schiller (FB group post)
Dessalator : as pickling season is on the horizon a little advice for maintenance of your pump and system. The manual wants you to pickle the system or flush frequently with its own product water when leaving the device unattended for a prolonged time. You can do that but there is an easier way and also considered good practice. Product water is dessalateur water, not dock water!
If you have someone locking after the vessel, you can have them rinse the membranes every other week too but it should not be a problem to have it sit for a couple of month following this procedure.
I wrote about rinse&go previously: manual rinse with product water for a long period (not just a minute, you really want to flush it), if you fast toggle between saltwater intake and tank it will push some freshwater down the intake as well, discard the filter, clean the filter housing thoroughly, fill with product water. If you think you did a good job cleaning everything you can rinse again but this is without filter so there must not be any debris. You can now leave the boat, if you had no algea growing inside already, it will be fine for months.
When you return to the vessel, do the pickling for 48-72h only. This kills anything on the inside. Once the prefilter is installed you should rinse with clean saltwater. Start the system (in manual mode if you have an automatic system), do not increase the pressure beyond 9 o'clock (necessary to be increased to 9 as the system should automatically shut off if you don't), let it run for 10-20m before you increase pressure.
Maintaining the high pressure pump: create an 8% vinegar solution in a bucket, detach the pump from prefilter and membranes and put both hoses into said bucket. Start the system (again in manual mode), you will see what it cleans out of the pump. The system will shut off on its own after a minute (if not do it by hand). Let it sit for an hour then repeat the process. When done do the same with product water and have it rinse thoroughly. Put everything back together and do the 10minutes at 9 o'clock pressure like mentioned above.
⚠ DON'T PUSH ACID/CHLORINE/DOCK-WATER THROUGH YOUR MEMBRANES! ⚠
