Fibre Optic and LED units
Fibre Optic and LED units These instructions are based on a basic unit. Fibre Optic and LED units are available and if you are installing one of these, add a further 25mm at the top of the unit when cutting the recess for the unit. Fibre Optic Units have a chamber at the top of the water blade where the fibres are introduced in the main manifold. Tile shims may be used to level the top of the unit. LED connections to the spill can be either rear or bottom mounted so allowance must be made for the extra space taken up by the connection.
The Light Engine should be mounted as close to the Sheer Descent as possible, in an accessible area so the light array may be altered or for service of the unit. Do not for any reason cut the Fibre Optic or LED cables.
Cutting the brick work
1. For Sheer Descent models 300mm to 1200 mm long with 25mm lip.
After choosing the position for the Sheer Descent, cut a notch in the brick work 85mm deep by 65mm wide and 50mm longer than the length of the Sheer Descent (i.e. 25mm each end). For example, if you are installing the 1200mm model cut the notch 1250mm (1200 + 25 + 25 mm) long. Then mark a single slot in the centre and on top of the brick 65mm wide by 85mm deep.
Use this notch to plumb 40mm PVC pipe to the Sheer Descent. Mark the brick work and cut it accordingly.
Do not apply torque to fittings. Keep all piping supported so as not to stress the rear of the unit or fitting.
2. For Sheer Descent models 1500 to 2400 mm long (dual feed).
Longer waterfalls need more water, therefore cut two plumbing lines. Mark and cut the brick as above, except that you now need two notches on the top of the brick for piping. Mark the top of the brick for these units as below.
|Length Of Unit -
|| Position Of Dual Feed Pipes
||375mm either side of centre
||450mm either side of centre
||600mm either side of centre
Complete the cuts in the brick before moving on to the next stage.
3. Installation of 150-230mm Lip extension Units.
Place the Sheer Descent unit on the flat, smooth, level surface in the correct location. Set it on the brick or concrete wall using cement or flexible adhesive.
If you wish to install the unit so it sits flush with the top of the wall or bricks, mark the desired position and cut a recess into the top of the wall allowing the 25mm each end as stated previously and also allow for 10mm above and below the lip. Allow 25mm above the lip for a Fibre Optic Unit instead of 10mm.
Fill the area above and below the lip with suitable flexible adhesive.
Keep the waterfall unit shielded from the sun until the finishing coping has been positioned.
Do not apply torque to fittings. Support all the piping so that the rear of the unit or fitting is not stressed.
Waterfall Flow Volume
Note: When you are plumbing more than one waterfall, add the total length of waterfalls together to determine the flowrate required. E.g. When plumbing two 1800mm units, you now have 3,600mm of waterfall, which needs 540 litres/min.
See flowchart (Click Here) to select the preferred volume of water flow, depending on how far forward you want the water sheet to project and how high your unit is above water level..