17
• Open all valves and remove the
priming plugs on the aspiration
collector and on the motor pumps
• Open all valves and to and remove
the priming plugs on the aspiration
collector and on the pumps
• Open the water supply on-off valve
until the evacuation of the liquid
• Fill with water through the suction
pipe
• Close again the feed faucet and the
pumping plugs
• Make the necessary topping-up
through the priming plugs on the
pump casing until complete filling-up
• Re assemble the plugs
GB
ELECTRIC CONNECTION
CHAPTER 5
The connection of the distribution boards to the power grid must be done according to indications reported
on the electric connection scheme situated in the control board.
Before connecting the power supply cable to the control board, check that it has sufficient dimensions to
support the maximum voltage required by group pumps.
WARNING
WARNING
PRIMING OF THE GROUP
CHAPTER 4
The group needs to be filled up before putting it in operation. The dry-operation of the motor pump damages
the hydraulic parts.
The power supply is equipped with differential circuit breaker with the sensitivity required by the regulations
in force for this type of equipment.
Check that the voltage and frequency indicated on the data plate correspond to those of
the available power grid.
WARNING
WARNING
WARNING
Always shut off the voltage before proceeding to any operation.
Check that the power supply is provided with an efficient ground installation which conforms with the
regulations in force.
The substitution of electric and electronic components must to be done by a skilled staff.
DANGER ELECTRIC SHOCK RISK
DANGER ELECTRIC SHOCK RISK
DANGER ELECTRIC SHOCK RISK
See fig.3-4-5 and other schemes reported on the switchboard
In case of aspiration with upper suction head, open storage, aqueduct or water pipe under pressure, prime the group as follows:
In the case where the group supply is with lower suction head, underground well or tank, prime the group as follows:
See fig.2
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