Marina-Speroni ECM Notice D'instructions page 6

PROFESSIONAL SUBMERSIBLE PUMPS
5.2. POSITIONING
ATTENTION
The pump must only be installed and con-
nected to the electrical mains by competent
technical personnel.
The pump may be installed only after suitable, simple
checks have been made:
1) Before proceeding to any manoeuvre, make sure that
the pump is not connected to the electrical mains.
2) For three-phase motors, check for the correct rotor
rotation direction, as described in section 5.3.
3) The pumps can be installed for either mobile use
and in a fixed position.
VALVE
OPTIMAL
POSITION
5.3. ELECTRICAL HOOKUP AND ROTATION
DIRECTION CHECK
The connection of the pump to the
electrical mains must be carried out by
specialised personnel and in compliance
with the regulations in force.
ATTENTION: When making the electrical hookup,
first connect the yellow-green cable to earth, then
the other cables as described in section 5.4
"Electrical connections"; when disconnecting, on
the other hand, the yellow-green cable must be
the last one to be disconnected. Check that the
voltage and frequency shown on the rating plate
on the pump correspond to those of the power
supply line and that the pump does not absorb
more current than the maximum deliverable. Pay
special attention to the condition of the cables!
Before installing the pump, make sure that the
cables are not damaged in any way; the free ends
of the cables must be protected against possible
infiltration of water or moisture, especially during
installation.
The pump must be equipped with a thermal
cutoff device appropriate to the electrical cha-
racteristics shown on the identification plate.
Section 5.4 "Electrical connections" shows the
overall diagram for the electrical connection of the
pump.
Before proceeding to the three-phase electrical
connection it is necessary to check the rotation
direction, above all at the moment of the first startup
of the pump and whenever the installation changes.
An incorrect rotation direction causes a significant
reduction in the flow rate and will damage the
pump.
To check the rotation direction, proceed as follows:
– First of all, follow the instructions given in section
1 "General safety instructions" to the letter.
– Lay the pump on one side and release it.
– Make a temporary connection, first connecting the
yellow-green cable to earth and then connecting
the power cables to the remote switch.
– Make sure that no damage can be caused to
personnel by the effect of the rotation; keep persons
and objects out of the range of action of the pump
(at least one metre away).
– Do not bring your hands or other body parts near
the outlet or the inlet mouth.
MAXIMUM
– Start up the pump for a few seconds.
WATER LEVEL
– Observe the rotor from the inlet mouth and check
to make sure that the rotation direction is anti-
MINIMUM
clockwise.
WATER LEVEL
If the rotation direction is not correct, invert the two
phase cables of the power supply and then try again.
Once the rotation direction has been established,
MARK the correct connection position of the cables,
remove the temporary connection and position the
pump in its final location.
5.4. ELECTRICAL CONNECTIONS
to the letter.
Single-phase electrical hookup
For the single-phase pumps, which have a Shuko
plug, the hookup is made by inserting the plug into
the current socket. (See wiring diagram, picture 1).
Wiring diagram
SEM-PRM-CUTTY SINGLE-PHASE SUBMERSIBLE PUMPS
1 - COMMON
2 - RUN
3 - START
C - CONDENSER
T - THERMAL
5
The electrical connections must only be
made by qualified personnel, following
all the international rules of installation
POWER CABLE
1 - BLACK L1
T
2 - BLUE or GREY L2
3 - BROWN C
4 - YELLOW-GREEN
picture 1