ENGLISH
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5.
HYDRAULIC CONNECTIONS
The connections to the hydraulic system are all 2" female, with the possibility to be reduced to 1"1/4 female with adapters supplied only for the
single dock.
Figure 7
Four configurations are possible, as
shown in figure 8.
Figure 8
If the installation of the system is of the “above head” type, it is recommended to provide a non-return valve as foot valve (at the
beginning of the suction pipe); this will allow the system loading operation so as to fill the whole pipe before switching on the
pump (par. 5.1)
If the installation is of the “over head” type, install the suction pipe from the water source to the pump in such a way as to avoid
the formation of goosenecks or siphons.
The suction and delivery pipes must be fitted so that they do not exert any mechanical pressure on the pump.
5.1 Loading Operation – Installation above head and below head
Installation “above head” (Fig 9A): access the technical compartment and, with the aid of the accessory tool or with a screwdriver, remove the
filling cap. Fill the system with clean water through the loading door, taking care to let the air out.
