Technical-Production Characteristics; Installation, Dismantling And Transport; General Installation Precautions; Electrical Connection - EBARA OPTIMA Série Manuel D'utilisation Et D'entretien

6. TECHNICAL-PRODUCTION CHARACTERISTICS

The motor-driven pump you have purchased has been designed
and manufactured in compliance with the following directives:
• MECHANICAL RISKS (Enclosure I Machines Directive):
- UNI EN ISO 12100-1 and UNI EN ISO 12100-2
• ELECTRICAL RISKS (Enclosure I Machines Directive):
- UNI EN ISO 12100-1 and UNI EN ISO 12100-2
- CEI EN 60204-1
• VARIOUS RISKS (Enclosure I Machines Directive):
- 2006/42/EC – Enclosure I
The electrical components and relative circuits installed on the
motor-driven pumps are in accordance with the CEI EN 60204-
1 Directive.

7. INSTALLATION, DISMANTLING AND TRANSPORT

WARNING!
INSTALLATION MUST BE CARRIED OUT BY A
QUALIFIED ENGINEER.

7.1. GENERAL INSTALLATION PRECAUTIONS

a) Use metal or rigid plastic pipes in order to avoid their yielding
because of the depression created at suction;
b) support and align pipes so that they do not put any stress on
the pump;
c) avoid throttlings caused by bending suction and delivery
hoses;
d) seal any piping connections: air infi ltration in the suction
pipe negatively affects pump operation;
e) we recommend that a non-return valve and a gate are in-
stalled on the delivery pipe at the motor-driven pump outlet;
f) fi x the piping to the reservoir or to any fi xed parts so that it is
not supported by the pump;
g) do not use a lot of bends (goosenecks) and valves;
h) on SURFACE PUMPS installed above head, the suction pipe
should be fi tted with a foot valve and fi lter in order to pre-
vent foreign matter from entering and its end should be im-
mersed at a depth that is at least twice the diameter of the
pipe; its distance from the bottom of the reservoir should
also be one and a half times its diameter.
For suctions longer than 4 metres use an oversized pipe
(1/4" wider at suction for improved effi ciency).
7.2. INSTALLATION
a) Position the pump on a fl at surface that is as close as pos-
sible to the water source. Leave enough space around the
pump to allow safe use and maintenance. A free space of
at least 100 mm must be kept in front of the cooling fan of
surface pumps in all cases;
b) lower submersible pumps using a rope fi xed to the handle
and hooks provided;
c) use pipes of suitable diameters (see PART 2) fi tted with
threaded sleeves that must be screwed onto the pump suc-
tion and delivery unions or its threaded counterfl anges;
d) SURFACE PUMPS cannot be moved or used in the open ex-
cept as stated in PART 2;
e) for specifi c instructions, consult the chapter "PREPARING
FOR USE" in PART 2.
7.3. DISMANTLING
The following must be done when moving or dismantling the
motor pump:
a) disconnect the electric supply;
b) remove the delivery and suction pipes (where present) if too
long or bulky;
c) if present, unscrew the screws that secure the motor-driven
pump to its supporting surface;
d) if present, hold the power cable;
e) lift the motor-driven pump using equipment suitable to the
pump weight and dimensions (refer to the plate).
7.4. TRANSPORTATION
The motor-driven pump is packed in a carton or can be fi xed
to a wooden pallet, if pump weight and dimensions allow it.
Transportation should not, in any case, present any particular
problems.
Verify the total weight stamped on the box.

8. ELECTRICAL CONNECTION

− ELECTRICAL CONNECTION MUST BE CARRIED OUT BY A
QUALIFIED ENGINEER.
− IT IS ADVISABLE TO INSTALL A HIGH INTENSITY DIFFER-
ENTIAL SWITCH (0.03 A) ON BOTH THE THREEPHASE AND
SINGLE PHASE VERSIONS.
WARNING!
We recommend that power is supplied to the motor-driv-
en pump using an electric panel equipped with switch,
fuses and a thermal switch calibrated to the current ab-
sorbed by the motor-driven pump.
The mains must be reliably earthed, according to the
electrical regulations in force in the user's country: this is
the installer's responsibility.
If the motor-driven pump is supplied without a power cable, use
a cable that complies with the regulations in force and the nec-
essary section according to length, power and mains voltage.
If present, the plug of the single phase version must be
connected to the mains far from sprays, water jets or rain
and it must be accessible.
The three phase version does not have an internal motor
protector, therefore overload protection must be provided
by the user.

MOTOR-DRIVEN SURFACE PUMPS

WHILE CONNECTING, MAKE SURE THAT BOTH THE TERMINAL
BOARD AND THE MOTOR DO NOT GET WET.
– Connection of the single phase versions must be made on
the basis of whether thermoamperometric protection "P" is
internal (FIG. 1) or external (FIG. 2).
– For threephase versions, after connecting the star (FIG. 3) or
triangle (FIG. 4) cable to the terminal board, looking at the
pump from the motor side, check that the cooling fan turns
in the same way as the arrow on the label applied on the fan
cover. If it is incorrect, swap two of the three wires over on
the motor's terminal strip.
SUBMERSIBLE MOTOR-DRIVEN PUMPS
– In single phase versions, plug the unit into the socket.
– For threephase versions (FIG. 5), check that the motor turns
in a clockwise direction looking at the pump from the top,
proceed as follows: with the motor-driven pump not yet se-
cured to the system, connect the power cable to the termi-
nal board and switch on briefl y; the pump shall start with a
kick in an anti-clockwise direction, seen from the top of the
pump. If the direction is wrong (clockwise), invert two of the
three wires in the terminal board of the electrical panel.
FIG. 7 shows the standard voltages shown on the plate with
their respective tolerances.
8.1. ADJUSTMENTS AND RECORDINGS
In pumps fi tted with a fl oat, adjust the length of the fl oat cable
with regards to the minimum and maximum value of the water
(see PART 2).
Check that the system automatisms do not require a number
of start-ups higher than the number shown in FIG. 8 for surface
pumps and in PART 2 for submersible pumps.
GB
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