Vernacare Vortex, Technical Manual, Page: 10 / 42

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2.2 Plumbing
2.2.1 Water supply
The machine should be connected to a suitable cold water supply as follows:-
The connection to the machine water tank is made at the upper rear left or right
hand side corner of the machine. It is a standard connection to a 1/2 inch BSP float-
type cistern valve. This can be made in rigid or flexible piping, according to customer
preference. Flow rate should be 18 litres per minute (4 gallons/minute) minimum, into
the water tank, which holds sufficient water for a complete cycle.
An ‘Approved’ double check valve or some other no less effective device providing
backflow prevention protection to at least fluid category three shall be fitted at the
point of connection between the water supply and the Vortex. A servicing valve shall
be installed on the supply to the fitting in a readily accessible location.
Note: The inlet flow valve is supplied already fitted with a flow restrictor in place. The
restrictor should be left in place on tank fed installations with heads above 50ft or
mains fed installations with pressures above 1.5 bar (25psi). In all other circumstances
the flow restrictor is not required.
Points to watch
:
Ensure that the supply line to the unit is at no point less than 15mm - larger if available head is low.
Ensure that the water supply cannot be starved by any other fittings.
Fit an easily accessible, full way isolating valve close to the unit.
For installations with dirty water supplies it is recommended that an in-line filter is fitted.
2.2.2 Drain connection
The “Vernacare Vortex” is fitted with a 2 inch/50mm ‘P’ Trap. In order to connect to
the drain, it is necessary to cut a minimal clearance hole in the plastic drain access
cover located at the rear of the machine below the water tank. It is important to
ensure that the drain access cover is fitted so as to prevent access to internal
electrical components.
The drain is secured by tightening the compression fitting on the ‘P’ Trap onto the
inserted plastic pipe. The free area below the water tank allows for the fitting of a
swept bend if required.
Points to watch Part 1 :
Ensure that the route taken to soil drain is the shortest, with minimum number of bends.
If necessary , use long radius or ‘swept’ bends - never short or 90’ elbows.
The waste must be run separately to the soil stack or drain.
Ensure that there is a fall of a minimum of 1 in 25 or a sufficient fall to maintain a self-cleansing velocity.
Provide easy access for Roding.