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INSTALLATION Cont...
Installing the Fan
The fan is an important part of the Rota-Loo and ensures adequate airflow
in the right direction.
The moulded fan housing is designed for both 100 and 150 DWV pipe
options. The Maxi RL2000 fan housing will be supplied ready to fit to 150
DWV pipe which is the recommended pipe size for the Maxi Rota-Loo.
The fan should be specified for your power supply (240VAC, 12VDC or
24VDC) and will have been fitted in the factory.
The fan can be accessed easily via the cover, which should be installed in
a location that is easily accessible for maintenance.
•
Fit the fan housing at a 45° angle as close to the Rota-Loo outlet
connector as possible but fitting 150 DWV pipe over the housing
spigots, sealing with Sikaflex and screwing through using the stainless
steel screws provided (pre-drilled).
•
Take care to ensure the fan is installed in the correct flow direction.
This should be marked on the housing and can also be found as an
arrow on the side of the fan itself.
• Connect the fan to an appropriate power source. It is designed run at all times.
Installing the Vent Pipes
When all the pipe layouts are determined and prepared, fix it all together and support adequately with
appropriate brackets.
As a guide, well composted material will be soil like in texture and
appearance. It will be free of foul odours and there won’t be anything
that is recognisable as faecal matter.
Even if it passes all these tests, remember to bury it away from food
cultivation to ensure the natural process is complete.
• Make sure the vent cap is at least 600mm above the ridge line of your roof, so that
you don’t experience down drafts. Trees close to the vent cap can also cause down
draft problems even though the vent pipe may be well above the ridge line. In a
situation like this it may be necessary to use a wind turbine as well as a fan.
• The vent pipe must be insulated where it is runs up the outside of the building and in
the roof space.(not that critical in arid regions because of lower humidity) In general,
it is preferable to have the vent pipe inside the building, to reduce the possibility of
condensation of evaporating liquid. In colder areas to improve efficiency, you may wish to insulate
the vent pipe even if it runs inside the toilet room. The easiest way to do this is to simply frame it into
a corner and then fill the cavity with discarded insulating material i.e., Styrofoam packing chips or
cellulose.
• Liquid is being evaporated from the Maxi all the time and if the pipe is cold, the vapour will condense
and the liquid will run back down the pipe and could short out your fan, which is why the fan should
be placed at 45 degrees. The brackets supporting the vent pipe should be large enough to go around
the pipe and insulation. In dry hot regions the vent pipe, if not insulated, may be painted black to
increase the chimney effect.
•
If the vent pipe is to be fitted inside the toilet room, a 150mm hole must be cut in the floor, ceiling and
through the roof. The pipe must be flashed as it passes through the roof.
•
Continue the vent pipe down to the floor (drawing as above). This will support the fan motor assembly
and act as a condensation collector. Fit a 20mm drain outlet (supplied).
