Vetus WC12S2 Instructions D'installation Et Manuel D'utilisation page 10

4.4 Connections 120 V / 230 V
ø 19 mm
4.4.1 Outlet
• Push the non-return valve (A) into the outlet hose (B).
• Screw in the flexible flap in the right direction (in the direction
of flow).
• Fit the elbow piece (C) to the outlet hose using the hose
clamp supplied.
• Fit the reduction piece (D) to the elbow piece outlet.
• Fit the outlet pipe (E) (19 mm. internal diameter (1")) to the
reduction piece using the hose clamp supplied. Use Vetus
odour-free waste water pipe as outlet pipe.
• Take care that the outlet pipe (B) does not kink.
• Connect the outlet pipe (E) to a waste water tank or hull
access hole with stopcock.
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4.4.2 Water supply
The flexible supply pipe (F) has a 3/4" connector.
When a pressurised water system is already installed on board,
the supply pipe can be connected to this. However, the pressure
in this system should be a minimum of 1.5 Bar (22 psi); this is
the minimum pressure for proper flushing.
When the pressure in the water system is less than 1.5 Bar
(22 psi), or when water from outside is used as flushing water,
then install a water pump in the supply pipe. The capacity of
this water supply pump should be minimal 10 litres per minute
(2.2 Imp.Gal/min; 2.7 US Gal/min).
When water from outside is used for flushing, ensure that this
water is very well filtered.
4.4.3 Preventing siphoning
When the toilet is below, or less than 40 cm. (16") above the
waterline, there is a danger of outside water being siphoned
into the toilet through the outlet. To prevent this siphoning, fit an
air-relief valve in the highest point in the outlet (see Installation
examples).
Electric marine toilets WCS(2) - WCL(2)