EN
VAL_SC Rev24 - Operating Instructions
Page 9 / 32
the use of individual protection devices suitable for
described activities.
During ordinary and extraordinary maintenance
interventions, safety gloves are required.
Signal
individual protection device
HAND PROTECTION
(gloves for protection against chemical,
thermal and mechanical risks).
5. TRANSPORTATION AND HANDLING
The product is packed to maintain the content intact.
During transportation avoid to stack excessive weights.
Ensure that during the transportation the box cannot
move.
It is not necessary to use any special vehicle to
transport the packaged device.
The transport vehicles must comply, for the weight and
dimensions, with the chosen product (see technical
catalogue dimensions and weights).
5.1. Handling
Handle with care, the packages must not receive
impacts.
Avoid to impact onto the package materials that could
damage the pump.
If the weight exceeds 25 Kg the package must be
handled by two person at the same time.
6. INSTALLATION
6.1. Dimensions
For the dimensions of the device (see technical
catalogue).
6.2. Ambient requirements and installation site
dimensions
The customer has to prepare the installation site in
order to guarantee the right installation and in order to
fulill the device requirements (electrical supply, etc...).
The place where the device will be installed must fulill
the requirements in the paragraph 3.2.
It's Absolutely forbidden to install the machine in an
environment with potentially explosive atmosphere.
6.3. Unpacking
i
Inspect the device in order to check any
damages which may have occurred during
transportation.
Package material, once removed, must be discarded/
recycled according to local laws of the destination
country.
6.4. Installation
Minimum dimensions of installation pit: 0,6x0,6 m.
Minimum and maximum immersion depth within the
marks on the pump column.
The pump must be installed vertically, with the pump
casing submerged in the liquid handled and with the
motor in a well ventilated location, protected from the
weather.
The motor is not submersible.
Make sure all necessary precautionary
measures are taken to avoid minor or serious
accidents which may be caused by toxic
exhalation at the site of installation.
The internal diameter of the delivery pipe must never
be smaller than the diameter of the pump port.
If slime deposits are expected to form at the bottom of
the installation pit, a support must be provided to keep
the pump raised.
Secure pump and delivery pipe to suitable rests.
6.5. Electrical connection
OFF
Electrical connection must be carried out only
by a qualiied electrician in accordance with
local regulations.
Follow all safety standards.
The unit must be properly earthed (grounded).
Connect the earthing (grounding) conductor to the
terminal with the
marking.
Compare the frequency and mains voltage with the
name-plate data and connect the supply conductors
to the terminals in accordance with the appropriate
diagram inside the terminal box cover.
ATTENTION: never allow washers or other
metal parts to fall into the internal cable
opening between the terminal box and
stator.
If this occurs, dismantle the motor to
recover the object which has fallen inside.
Place the power supply cable and all electrical
components above the top grade level of the sump.
If the terminal box is provided with an inlet gland, use
a lexible power supply cord of the H07 RN-Ftype with
section of cable not less than (par. 12.3 TAB 1).
If the terminal box is provided with an inlet bushing,
connect the power supply cord through a conduit.
For use in swimming pools (not when persons are in
the pool), garden ponds and similar places,
a residual
current device
with IΔN not exceeding 30 mA must be
installed in the supply circuit.
Install a
device for disconnection from the mains
(switch) with a contact separation of at least 3 mm in
all poles.
With a three-phase motor install an overload protection
device with curve D appropriate for the rated current
of the pump.
Single-phase
VALM
,
SCM
, are supplied with a
capacitor connected to the terminals and (for 220-240
V - 50 Hz) with an incorporated thermal protector.
Float switch supplied only on demand:
- for single-phase units, connected to the terminals in
the terminal box;
- for three-phase units, to be connected to the control
panel.
When the water level is not under direct visible control,
install a loat switch or an automatic control system
with electrodes
to protect the pump against dry run-
ning.
7. STARTUP AND OPERATION
7.1.
Preliminary checks before start-up of the
pump
Do not start-up the device in case of damaged parts.
7.2. First starting
OFF
ATTENTION: never run the pump dry.
Start the pump only when immersed in the liquid within
the minimum and maximum depth marks on the pump
column.
Before starting, check that the shaft turns by hand. For
this purpose use the screwdriver notch on the shaft
end on the ventilation side.
With a three-phase motor check that the rotation
is in the clockwise direction as seen from the motor
fan side; otherwise disconnect electrical power and
