Working Temperature; Electrical Connection; Setting And Operation - EBARA Ego Manual De Instrucciones

Motor protection: the pump is provided with a draining
labyrinth inside the electromotor casting; do not insulate
the pump as this can cause serious damage.
Ego (ER) -/40
Speed/ Regulated Unregulated
pressure mode mode
curve [W]
I 5-25
GB
II
7-25 17
III
10-25 25
6.2 LIMITS OF USE
The allowed maximum pressure in the system is 1 MPa
(10 bar).
The minimum pressure at suction shall be:
- 0.05 bar for medium at 50°C
- 0.40 bar for medium at 80°C
Relative humidity of the air: max 95%

WORKING TEMPERATURE

Water (medium)
5-95°C
Working outside of recommended conditions
can shorten life time and nullify the warranty.
7. INSTALLATION, DISMANTLING
AND TRANSPORT
7.1 GENERAL ARRANGEMENT FOR INSTALLATION
• The pump must be mounted with electromotor shaft
in horizontal position (fig. 3.1). Allowed and forbidden
positions are shown in fig. 3.2
• The arrow on pump plate shows direction of medium
flow
• If there is not enough space for electric connection,
control box can be rotated by 90° (allowed positions
are shown in fig. 3.3): rotate the motor as shown in fig.
3.4, 3.5 and 3.6. Before rotating the motor, the pump
must be emptied of fluid.
7.2 DISMANTLING
In order to handle and dismantle the electropump you should:
a) Take off the power supply.
b) Lift the electropump with suitable means according to
its weight and dimensions
7.4. TRANSPORT
The electropump is packed in a carton or, depending on
its weight and dimensions, it is fixed on a wooden pallet;
however, transport does not present many difficulties.
In any case, check the total weight imprinted on the box.
8.

ELECTRICAL CONNECTION

8.1. PROTECTIVE DEVICES
• ALL THE CONNECTIONS MUST BE EXECUTED
ACCORDING TO THE LAW BY A QUALIFIED TECHNICIAN.
• ALL THE ELECTRICAL MASSES MUST BE CONNECTED
TO THE EARTH OF THE PLANT ACCORDING TO
THE ELECTRICAL STANDARDS IN FORCE IN YOUR
COUNTRY: THE INSTALLER SHALL BE THE SOLE
6
Ego (ER) -/60 Ego (ER) -/80
Regulated Unregulated Regulated
mode mode mode
[W] [W] [W] [W]
8 7-50 16 10-75
10-50 34 12-75
12-50 50 15-75
Ambient Temperature
0-40°C
RESPONSIBLE FOR IT.
• FOR THE THREE-PHASE AND SINGLE-PHASE TYPES,
WE RECOMMEND INSTALLING A HIGH SENSITIVE
DIFFERENTIAL SWITCH (0.03 A).
After installing the unit check again the feeding cable
following the CABLE CONNECTION instructions and
connect it to the control panel (1) that must be fitted,
Unregulated
mode
according to the actual rules, with:
[W]
• An omnipolar device for switching-off/separation of
25
50
• A protection against short circuits (Am fuse) and
75
• Possible devices against: lack of phases, electric
IMPORTANT: ALL THE ELECTRIC MASSES MUST
BE CONNECTED TO THE EARTH OF THE PLANT.
8.2. CABLE CONNECTION
• Connect the mains supply cable to the connector present
inside the terminal box, as shown on fig. 3.7
• The electrical connection of the pump to the mains (230V,
50 Hz) must be carried out with suitable standardised
connecting cord
• When connecting the mains cable ensure it never comes
in contact with the casing of the device, due to the high
temperatures of the casing.
Electrical connection of ER module
(for Ego ER versions)
• The signal conductor for control signal 0-10 V should be
led through a small gland along the hydraulic housing on
the electric fuse box. The conductor should be temperature
resistant at a temperature of >85°C. The polarity of the
signal conductor is not relevant. See fig. 3.7
9. USE AND RUNNING
• Before the startup, the pump must be filled with fluid
and vented (fig. 3.8)
• Pumps Ego (ER) -/40, -/60 and -/80 do not need to be
manually vented, as this occurs automatically when the
hydraulic system is being ventilated during the start-
up. The air in the pump generates noise. After a short
working period noise should disappear.
• For a proper functioning, a minimum pressure at suction
must be guaranteed (see LIMIT OF USE)
During its running, it is normal for the pump to
heat up, or to be heated by the pumped fluid - to
prevent from risk of burns, it should therefore
not be touched!
• The permitted operating area around the pump is
determined by the diagram in these instructions.

10. SETTING AND OPERATION

10.1 OPERATION MODES
• Pump settings can be changed with the button on
electric box top. It is possible to choose between the
following operating modes:
a) "Proportional differential pressure" (∆pv – regulated
mode): in this mode the button pulsates and the
duration of the pulse interval shortens along with
the flow decreasing.
the net (minimum opening contacts 3 mm).
magnetothermics, rated in compliance with the
current plate.
dissipations, lack of water, atmospheric discharges
and functioning-failure indicators.