Service And Care; Service; Care - Graf 350021 Notice D'installation Et D'utilisation

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 control automatic 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 sol-
vents be used.
Working on the electrical system may only be carried out by a professional electrician!
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5. Commisioning

6. Service and care

Emptying plug
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polystyrene float