Pentair Nocchi MINIVORT P2 Serie Manual De Uso página 7

Chap.3 – ASSEMBLY
For any lifting or transportation operations, use the special handle. In regular installation cases with rigid tubes, the setting up
of a check valve to avoid any liquid circulation while shutting off the motor pump is recommended. The setting up of a fast sectioning
connection is recommended to provide easy maintenance and cleaning operations. The size of the pit should be such so as to
allow a minor number of startups per hour. In temporary installation cases, the use of flexible tubes connected to the pump
by means of a rubber bearer is recommended when possible. During the immersion of motor pumps, do not use the
power supply cable, but a rope, or a steel wire cable or a chain, at the handle. MINIVORT can be delivered in automatic
version, with an independent float circuit breaker directly connected to the switchboard.
Chap.4 – ELECTRIC CONNECTION
The single-phase model of motor pumps are equipped with a condenser permanently inserted and a motor thermal-
protective device incorporated in the automatic reinsertion winding; no other external protection is therefore required.
In the three-phase models the protection must be assured by means of a magneto-thermal overload cutout or an
electricity meter with thermal cutout, set at the rate current indicated on the data plate.
The electric motor of the motor pumps runs clockwise (side motor view). To verify if the sense is correct, it is
necessary to control, upon starting up, the reactions of the motor pump. If the recoil of the motor pump is
counterclockwise, the rotation of the motor is correct and vice versa, if the recoil is clockwise, it is necessary to
exchange two of the three phases. We point out that the inverted sense of rotation does not guarantee the hydraulic
performances indicated in the catalog.
Chap.5 – MAINTENANCE AND TROUBLESHOOTING
In normal conditions, MINIVORT, SOM and SOMVORT motor pumps do not require maintenance. Hydraulic parts
require only occasional cleaning.
All the assembly operations must be carried out with motor
DANGER
Risk of electrical generator set disconnected from the power grid.
discharge.
Protect the motor pump and all tubes against frost and bad weather
WARNING
conditions.
Check that, at the minimum level, the float circuit breaker stops
WARNING
the motor pump.
WARNING
Check that, while oscillating, the float is not obstructed.
Check that the voltage and frequency indicated on the data plate
WARNING
correspond to those of the available power grid.
DANGER
The technician must check that the power supply is provided with
Risk of electrical
an efficient ground installation which conforms with the regulations
discharge.
in force.
DANGER It is necessary to check that the power supply is equipped with
Risk of electrical
differential circuit breaker with
discharge.
(DIN VDE 0100T739)
DANGER
Before performing any maintenance operations, shut off the motor
Risk of electrical
pump voltage.
discharge.
5
GB
Δ Δ Δ Δ Δ
=30 ma high sensitivity