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Aquatec Watermaker AC 65 Technical Manual
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Aquatec Watermaker AC 65 Technical Manual

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for installation, operation and maintenance of
Manufacture and distribution by North-Marine Handels GmbH
Papenreye 61, D 22453 Hamburg.
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All contents of this manual, in particular texts, photographs and graphics are subject to German
copyright law. Copyright held by North Marine Handels GmbH. Duplication, editing, distribution and any
kind of use outside the limits of copyright law require the written approval of the author.
Technical Manual
Modular AC 65 - AC 240
Version 65 - 01.2022
Download latest manual at:
www.aquatec-watermaker.de/downloads_E.html
In case of doubt, the German original manual applies.
AQUATEC- Water maker,
sup@aquatec-watermaker.de, Tel: +49 (0)40-36850306
www.aquatec-watermaker.de

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Summary of Contents for Aquatec Watermaker AC 65

  • Page 1 Manufacture and distribution by North-Marine Handels GmbH Papenreye 61, D 22453 Hamburg. Contact sup@aquatec-watermaker.de, Tel: +49 (0)40-36850306 www.aquatec-watermaker.de All contents of this manual, in particular texts, photographs and graphics are subject to German copyright law. Copyright held by North Marine Handels GmbH. Duplication, editing, distribution and any...
  • Page 2 Thank you to choose an AQUATEC Watermaker for the provisioning of fresh water on your boat. AQUATEC equipment is made from high-quality components exclusively and has proven its reliability on long cruising-yachts. We are convinced that our product will serve you for many years without interferences.
  • Page 3 This instruction includes important safety information and instructions for commissioning, operation and maintenance of the Aquatec Watermaker components. It is essential therefore, that the responsible specialist refers to it before starting any work on the machinery as well as prior to commissioning.

  • Page 4: Table Of Contents

    Clamping torques / Spare parts 32 – 36 Specification / dimensions Recommendation for using your Aquatec reverse osmosis system. Daily use is preferable to a one-time weekly use. The system produces water with a neutral taste and very good quality.
  • Page 5 Introduction The principle of reverse osmosis (RO) In natural sciences and technology, osmosis is perceived as the directed migration of molecules through a semi permeable membrane. The chemical and physical structure of the membrane determines which molecules are able to pass and which are not. For this reason, it is called semi-permeable, which means as much as halfway or partial permeability.

  • Page 6: Operating Instructions

    1) Open the seawater intake valve (no.10). 2) The pressure control valve (no.5) in the control panel has to be fully opened by turning counter clockwise. Warning! Never start your Aquatec with closed pressure control valve! Starting with a closed valve destroys the pressure reading and possibly essential parts of the equipment.
  • Page 7 Flow diagram water production. (5) Pressure regulation valve (6) Flowmeter product water (7) ships fresh water pump (8) Feed pump (9) Gauge feed pressure (10) Seacock, not scope of delivery. The drinking water production changes according to the salinity, the temperature of the seawater and the age of the R.O.
  • Page 8 Switch off the system, fresh water flush. 1) Open the pressure control valve until the plant runs without pressure. 2) Run the Aquatec several minutes to remove the concentrated salt from the membranes. 3) Turn three-way valve (no. 2) to position test-outlet.
  • Page 9 Flow diagram fresh water flush Flushing working pressure 0 bar!!! Note! (5) Pressure regulation valve (6) Flowmeter product water (7) ships fresh water pump (8) Feed pump (9) Gauge feed pressure (10) Seacock, not scope of delivery.
  • Page 10 Long term preservation (mothballing) of the plant (Page 1 of 2) Description: Prior to a longer period of shutdown, the Aquatec has to be preserved with chemical no. 3 (Biocide). After mothballing, the plant can be shut down for 6 months, depending on the environmental conditions.
  • Page 11 Long term preservation (mothballing) of the plant. (Page 2 of 2) Hint: In order to avoid possible deposits in the pumps, it is advantageous after preserving the membranes to remove the high-pressure hose at the outlet of the HP pump and to wash out the system with fresh water again, this time without the connected membrane.

  • Page 12: Membrane Cleaning

    30 minutes over the test outlet. 9) If there is no change in freshwater output, repeat the procedure 1 to 7 with chemical no. 2 (Acid). Prior to a longer period of shutdown, the Aquatec has to be preserved with Biocide after cleaning and flushing.

  • Page 13: Memos

    Memos...
  • Page 14 Flow diagram AC 65 / AC 75 (5) Pressure regulation valve (6) Flowmeter product water (7) ships fresh water pump (8) Feed pump (9) Gauge feed pressure (10) Seacock, not scope of delivery. Hose dimensions (inner diameter) see specification Flow diagram AC 110 / AC 135 / AC 150...

  • Page 15: Flow Diagram

    Flow diagram AC 190 Flow diagram AC 240...
  • Page 16 Installation guide page 1 The already assembled membranes can be stored for approx. 5 months in the sealed pressure tube, preferably cool, but preferably not above 20 ° ambient temperature. Attention! However, we recommend installing and using the Watermaker as soon as possible. Hose connections below the water line should secured with 2 hose clamps.
  • Page 17 For horizontal installation, the fresh water outlet can be mounted at any side of the membrane housing. Inserting the Aquatec pressure vessel into the mounting clamp. 1) Insert pressure vessel into the clamp.
  • Page 18 Installation guide page 3 High-pressure hose, to be cut into two parts according to your needs. To allow a flexible assembly, the high-pressure hose is provided as one piece of 4 meters (13.1 feet) with a V4A high-pressure fitting at both ends. Please fit the required lengths accurately before cutting the hose.
  • Page 19 Installation guide page 4 Secure the high-pressure connection fittings in the plastic end caps of the pressure pipe against twisting with a 19 mm open-ended wrench (not necessary on end caps fittings secured with metal strips) and tighten the union nut of the Attention! high-pressure hose with a 17 mm open-ended wrench with approx.
  • Page 20 Installation guide page 5 Connection concentrate (Brine): Connect the outlet on the pressure control valve in the control panel to an on-board outlet through a hose 1/2 "= 13 mm inner diameter. This on-board outlet must be above the waterline and must not be lockable. The material for the thru-hull must not be made of acetal.
  • Page 21 Remove them before connecting the new cables. The Aquatec Control Panel is ready for connection and is simply connected to the pre-wired connection box. Power supply cables from the on-board electrical distribution, motor connection cable, fuses and possibly necessary on-board main switch are not included in delivery and must be placed on board.
  • Page 22 Electrical circuit diagram Aquatec AC 65 up to AC 240 Single phase 230 50 Hz 115 Volt 60 Hz 2 pole motor protection switch Aquatec AC 65 up to AC 240 Single phase 230 5Hz or 115 Volt 60 Hz 3 pole motor protection switch...
  • Page 23 HP-pump / feed pump 3 phase 208/ 230/ 400/ 440 Volt 50/ 60 Hz Aquatec AC 150 up to AC 240 HP-pump 3 phase 208/ 230/ 400/ 440 Volt 50/ 60 Hz, Feed pump 1 phase 230 Volt 50/ 60 Hz...

  • Page 24: Important: Inspection And Maintenance

    Inspection and maintenance Important: Check the oil level and condition of the high-pressure pump oil daily. In the event of condensation in the oil (whitish/greyish discoloration due to Attention! continuous operation, warm environment), change the oil immediately. Regularly check hose connections and HP pump for leaks. During operation, check the entire system for possible leaks and smooth running.
  • Page 25 Note! Demounting the membrane: For demounting the membranes, screw off the screws M6x20 at both ends of the AQUATEC pressure vessel. (Screw tightening torque for the holding clips 3 Nm). Then take off the stainless-steel holding clamps. Push the end caps in a little before pulling them out to loosen the possibly stuck O-rings.

  • Page 26: Troubleshooting

    Troubleshooting Noisy operation, vibrations, unsteady pressure. Prolonged operation with the above error leads to failure of other components. Warning! Noisy running, pulsating, unsteady and possibly low working pressure, banging or strongly vibrating of high-pressure hose. Air in system To bleed air from the system a fresh water flush via the on-board pressurized water system is often optimal for removing existing air from the system.
  • Page 27 Troubleshooting Product amount of water too low. Membrane is blocked or defect. Temperature seawater lower than 25 ° Celsius. Salinity seawater higher than 35,000 ppm. Reduced sea water flow because of blocked or dirty filters. Insufficient fresh water rinsing after every use. Insufficient chlorine separation by the charcoal filter, assuming chlorine is or was present in the rinsing tank, chemicals or oil sucked in.
  • Page 28 Parts diagram high pressure pump Type 1, crankcase color grey When ordering spare parts please state Pump-Head Serial No. Note! Screw No. 16C secure with Loctite 243. Tightening torque 22,5 Nm Pump head high pressure pump type 1 Serial-number: Sxxx 23 24 25 23A 21 20 32 33 30 29 28 27 31 Tightening torque:...
  • Page 29 Spare part numbers high pressure pump Type 1, crankcase color grey When ordering spare parts please state Pump-Head Serial No. Note! Order No. Description 141609 Crankcase 141610 Oil Dipstick 141611 Crankcase Cover 141612 Oil Drain Plug Assy 141613 O-Ring 141614 Plug Assy 141615 Cylinder Screw M6 x 16...
  • Page 30 Clamping torques and high-pressure pump spare part-numbers typ 2 Type 2, crankcase color black When ordering spare parts please state Pump-Head Serial No. Note! Nut no. 35 secure with Loctite 2701 No. 52 replaced no. 13/14 No.13 right side After year 2018/2019 for belt drive only To unscrew nut no.
  • Page 31 Spare part numbers high pressure pump Type 2, crankcase color black When ordering spare parts please state Pump-Head Serial No. Note! Order Order Description Qty. Description Qty. 141565 Drain plug ¼“ x 9 Pump head ss 1.4462 141410 Typ DC320-500-800, DD500, AC65-110 141483 Gib 141411 Typ AC75-135, AC/KC150-190-240 141453 Rosette...
  • Page 32 Specification Aquatec Watermaker are designed for permanent installation on ships. Operation of the system is only permitted with clean seawater. Warning! Technical data AQUATEC Watermaker AC 65 / AC 110 Membrane type Seawater SW 2540 Working Pressure max. 55 bar...
  • Page 33 Specification Pressure regulation valve Maintenance (only as required) is limited to cleaning and greasing. The O-ring (5), (7,5x2 NBR 70), has only to be changed in case of leakage. To take the pressure pin out of the valve body, unscrew the adjusting knob (1). Then take off the spring (2) with pressure disk (3).
  • Page 34 Low pre-pressure reduces the service life of the pre-filter. Note! Feed pumps with higher head are optionally available. Feed pump Aquatec type 40 Magnetically coupled centrifugal pump, Power 140/ 200 Watt Voltage 1 ~ 220-240 Volt 50/ 60 Hz, Insulation class E, IP 44. Thermal Protected.
  • Page 35 Specification...
  • Page 36 Dimensions 1~ Motor pump unit AC 65/ AC 110/ AC 75 / AC 135 1~ Motor pump unit AC 150 / AC 190 / AC 240 1~ 230V/50Hz - Motor 1,85 KW (115V/60Hz - Motor 2,2 KW - 20 mm longer).
  • Page 37 Dimensions 3~ Motor pump unit AC 150 3~ 400V/50 Hz or 3~ 440V/60Hz – Motor 1,5 KW. 3~ Motor pump unit AC 190 / AC 240 3~ 2,2 KW, 400V/50 Hz or 3~ 440V/60Hz – Motor 2,2 KW.

This manual is also suitable for:

Watermaker ac 240Watermaker ac 75Watermaker ac 110Watermaker ac 135Watermaker ac 150Watermaker ac 190