Setting And Operation; Maintenance And Repair; Troubleshooting - EBARA MR Operating And Maintenance Manual

10. SETTING AND OPERATION

10.1 OPERATION MODES
• Pump speed can be changed by means of a rotary
button on the terminal box: rotate it to the left for the
minimum speed and to the right for the maximum speed
• Speed level is indicated on the terminal box (I, II, II)
• Maximum speed can be used to achieve maximum
performance (pressure and flow), but consider that flow
noise may occure with throttled thermostatic valves;
select proper speed according to the characteristics
of the hydraulic system
• MR (D) and MR B pumps allow a selection between 3
speed levels
• MR S pumps allow a selection between 2 speed levels
only

14. TROUBLESHOOTING

FAULT
PUMP FAILS TO START
NOISE IN THE SYSTEM
NOISE IN THE PUMP
15. DECLARATION OF CONFORMITY
The company EBARA PUMPS EUROPE S.p.A. declares
under its own responsibility that its MR products are in
conformity:
2006/42/EC (MD), 2004/108/EC (EMC),
2006/95/EC (LVD), EN 809,
EN 60 335-1, EN 60 335-2-51,
EN 61000-6-3, EN 61000-6-1
CAUSE
Suppy failure
Pump blocked due to furred
bearings
Impurities in the pump
Pump flow setting is too high
Air in the system
Inlet pressure too low

11. MAINTENANCE AND REPAIR

Often control the plant trying to eliminate the disturbing causes
such as sand, lime, etc. Keep efficient the parts exposed
to damages (valves, filters, detectors and protections). For
interventions always call qualified technicians.
In case of long rests provide to often start the electropump.
Any replacement of the feeding cable as well as all other
maintenance operations must be performed only by the
assistance centre.
12. DEMOLITION
When demolishing the electropumps, follow strictly the
regulations in force in your country.
The user is responsible for disposing the equipment by
delivering it to a collecting point for recycling and disposal
of electrical equipment.
For further information about the collecting points of
equipment, contact your local authority for waste disposal,
or the shop where you purchased your product.
13. TECHNICAL DOCUMENTATION ATTACHED
Installation diagram.
REMEDY
Check fuses and possible loose electrical
connections
Change over to maximum speed for a short
period
Dismantle and clean the pump
Change over to a lower speed
Vent the system
Increase the inlet pressure or check the air
volume in the expansions tank (if installed)
Mr. SHU NAGATA
Managing Director
Date: Jan. 30, 2013
EBARA Pumps Europe S.p.A.
Via Pacinotti, 32 - 36040 Brendola (Vicenza) - Italy
Tel. +39 0444 706811 - Fax +39 0444 405811
www.ebaraeurope.com
GB
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