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4. Installation and assembly
4.6
Data cable and sensor connection
The data cables are taken from the tank through the empty conduit to the SILENTIO back-up supply unit
and connected to a free plug socket. The sensor in the tank must be connected to the control unit and
installed according to the enclosed instructions.
4.7
Connection of the Opticlean additional pump and solenoid valve (optional)
The solenoid valve for the automatic operation of the Opticlean cleaning unit and in some cases an
additional pump can be activated over the microprocessor management. The applicable assembly
instructions are found in the enclosed installation instructions for the control unit. Please use only the
valves and pumps that are approved by GRAF otherwise there is the danger of damage to the electronics
and control management system.
5. Commissioning
Before the commissioning of the system all of the inlet and outlet pipes must be thoroughly rinsed through.
Small foreign objects up to 2 mm can cause substantial damage to pumps and other equipment.
Never run pumps without water in the system!
Remove the threaded fill plug from the pumps’ body and completely fill the housing with water.
Important:
To ensure a trouble-free operation of the whole system it is essential, that
the reversible flow filter (optional accessory) is only installed from the
pressure side.
An unprofessional installation can lead to future malfunctions (e.g. air
intake).
