Aquatec DC 500, User Manual, Page: 12 / 25

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Installation guide page 1
It is obligatory that an electrician has to make the electrical connection
Hose dimensions
Feed from sea cock up to 5 mic filter ¾“ = 19 mm inside.
Feed from 5 mic filter up to high-pressure pump ½“ = 13 mm inside.
Preservation and cleaning ½“ = 13 mm inside.
Drain over board (Brine): ½“ = 13 mm inside.
Fresh water flushing ½“ = 13 mm inside.
Product water John Guest PE tube 10 mm.
HP hose: ¼“ = 6 mm inside.
During assembly of the hose nozzles and fittings, 3-4 windings of Teflon-tape have to
be wrapped around the screw thread against screw direction as tightly as possible.
The grommets may not be screwed too tightly in the filters or stop-cocks. If possible,
install hoses moved upward from the thru-hull fitting to the filters and up to the high-
pressure pump. This will prevent accumulation of air in the hoses.
Thru-hull fitting and coarse filter and feed pump
Install a thru-hull fitting, preferably deep under water line, afterwards install eventual
a coarse filter for protection the feedpump. The thru-hull fitting, coarse filter and the
feed pump have to be located in an area that will always be under the waterline when
the boat is used under normal running conditions. Install the feed pump close as
possibly to the thru-hull fitting.
The pump must be flooded before turn on, otherwise the bearings will be destroyed
by drought. The system has to be fully de-aerated by means of the feed pump. To
allow any air to escape, switch the pump on and off several times.
Please note: Depending on the type of boat, there might occur problems with the
seawater intake at a speed of more than about 8 knots.
Mounting position of the feed pump
OK OK not permitted
Attention: Connection feed pump: red = positive (+), black = negative (-). Wrong
polarity destroys the pump and is not covered by warranty.