EBARA MR - Technical and Building Features; Installation, Dismantling and Transport; Electrical Connection; Use and Running

6
GB
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
(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 Water (medium)
Ambient
Temperature
MR (D) -10 +110°C
0-40°C
MR B +5 +65°C
MR S
-10 +110°C
(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
Maximum Ambient
Temperature
110 °C 35 °C
100 °C 50 °C
90 °C 60 °C
80 °C 70 °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
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lledwithuid
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.
Manuale_MR - 7 lingue.indd 6 21/07/14 17.44