Service And Care; Service; Care - Graf AQUA-CENTER SILENTIO 15/4 Notice D'installation Et D'entretien

Then also fill the suction pipe with water. To do this, the cistern side end of a pipe is connected to the
suction pipe (remove the basket) and an outlet in the house is opened. Be sure that the red 3 way valve is
set to automatic [A]. By opening the inlet valve on the filling hose the complete system is filled with water
until the water emerges free of air bubbles. With this method the system is reliably bled of air and is now
ready for operation. Now make the electric connection to the mains plug (230 V / Fused 16 A) and the
system will be running. If the pump does not run or cuts out after a short time, then press the reset button
on the controlmatic. This procedure is to be repeated until the water emerges without air bubbles at the
outlet which is then closed, the pump will reach it's maximum pressure and stop automatically.
If it is not possible to fill the suction pipe with this method then it is also possible to fill it at the SILENTIO
unit, to do this the flow valve of the suction pipe in the tank must be opened. The filling must continue until
the water emerges at the cistern end. The system may now be put into operation as described above.
Finally the commissioning is competed by opening the mains water supply to the back-up supply tank. This
fills the tank and before the water flows out of the overflow the float valve must close off the inlet. If this
does not happen then the polystyrene float that controls the valve must be adjusted.
6.1

Service

The complete system must be serviced at regular intervals (approximately every 3 to 4 months). For every
service all of the threaded connections must be checked for leaks. Also the condition of the function of the
float valve for the back-up tank must be checked. If the system has been out of use for a long period or
there has been the danger of frost then the pump and controlmatic should be emptied. Any temporary
storage should only be at a dry and well ventilated location.
6.2

Care

For care and cleaning of the system it is sufficient to use a damp cloth, for more thorough cleaning a mild
detergent may also be used. Under no circumstances should a solvent or cleaning agents containing
solvents be used.
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5. Commissioning

6. Service and care

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