Technical And Building Features; Working Temperature; Installation, Dismantling And Transport; Electrical Connection - EBARA MR Instructions D'emploi Et D'entretien

6. TECHNICAL AND BUILDING FEATURES

6.1 TECHNICAL DATA (MR (D), MR B, MR S)
Supply voltage: 230V, 50Hz
Protection class: IP44
Insulation class: H
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.
6.2 LIMITS OF USE
The allowed maximum pressure in the system is 1 MPa
GB (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
- 1.08 bar for medium at 110°C
Relative humidity of the air: max 95%

WORKING TEMPERATURE

Series / Model
MR (D)
MR B
MR S (momentary peak of 140°C
allowed, for max 5 minutes)
Working outside of recommended conditions
can shorten life time and nullify the warranty.
Fluid temperature and maximum ambient temperature
should be related as follows:
Water Temperature
110 °C
100 °C
90 °C
80 °C
7. INSTALLATION, DISMANTLING
AND TRANSPORT
7.1 GENERAL ARRANGEMENT FOR INSTALLATION
• The pump must be mounted with electromotor shaft
in horizontal position. Allowed and forbidden positions
are shown in diagrams below (fig. 1, 2, A1)
• 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°: rotate the motor
as shown diagrams below (Fig. A2-A3-A4) and check
allowed position. 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
6
Ambient
Water (medium)
Temperature
-10 +110°C
+5 +65°C
0-40°C
-10 +110°C
Maximum Ambient
Temperature
35 °C
50 °C
60 °C
70 °C
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
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,
according to the actual rules, with:
• An omnipolar device for switching-off/separation of
the net (minimum opening contacts 3 mm).
• A protection against short circuits (Am fuse) and
magnetothermics, rated in compliance with the
current plate.
• Possible devices against: lack of phases, electric
dissipations, lack of water, atmospheric discharges
and functioning-failure indicators.
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 diagrams below
(fig. 4)
• 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.

9. USE AND RUNNING

• Before the startup, the pump must be filled with fluid
and vented (see Fig. 7-8-9)
• 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.