8
050406 .01
vetus®
Automatic demand water pressure pump WP
1 Introduction
The pump is intended to be used as a pressur-
ized water system on yachts and small craft.
Possible other applications are pumping of flu-
ids for cleaning purposes or water purification.
In a pressurized water system the pump will
be switched on immediately after the pressure
has dropped when water is tapped ensuring a
continuous flow of tap water.
Following the recommendations below will re-
sult in a longer life and better performance of
your water pressure pump.
• Ensure that the water supply tank is always
full; although the pump can still run when
dry, this will prevent unnecessary dry run-
ning.
• Check that the battery voltage is correct.
Battery voltage loss can be reduced by us-
ing cables of sufficient cross sectional area.
• Ensure that the pressurized water system
is properly prepared for winter before the
temperature falls below zero. Otherwise,
irreparable damage may be caused to the
system.
• Carry out the maintenance described regu-
larly.
2 Installation
2.1 General
Always install the pump in accordance with
the applicable regulations of the country con-
cerned.
2.2 Position
• See ‘9 Installation recommendations’ on
pages 46 and 47.
1 The pump may be positioned at the
same level or lower or higher as the tank;
the maximum priming height is is 1.8 m
(6 ft).
2 The maximum suction line length (hori-
zontally) is 9 m (30 ft).
3 The pump can be mounted in any posi-
tion. The pump head should be pointing
downwards if mounted vertically.
• The space in which the tank is placed should
be dry and properly ventilated. The pump
should be 1 cm (3/8”) free all round from
bulkheads or other equipment, to provide
ventilation. Do not locate the pump in a
space less than 0.03 m
3
(30 dm
3
, 1 cubic
foot) unless adequate ventilation is pro-
vided. In case of overheating the integrated
thermal protection will interrupt operation.
When cooled down sufficiently the pump
will resume operation.
• Position the pump in such a way that it is
readily accessible for inspection.
• There must be sufficient free space available
to perform maintenance on the pump.
• Also ensure that there is sufficient free
space for the hose connections. These must
be easily accessible during installation.
• Make sure that the foundation for the pump
is strong enough to secure it properly.