EBARA MR - Setting and Operation; Maintenance and Repair; Troubleshooting

7
GB
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
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.
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
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
14. TROUBLESHOOTING
FAULT CAUSE REMEDY
PUMP FAILS TO START
Suppy failure
Check fuses and possible loose electrical
connections
Pump blocked due to furred
bearings
Change over to maximum speed for a short
period
Impurities in the pump Dismantle and clean the pump
NOISE IN THE SYSTEM
Pump flow setting is too high Change over to a lower speed
Air in the system Vent the system
NOISE IN THE PUMP Inlet pressure too low
Increase the inlet pressure or check the air
volume in the expansions tank (if installed)
Manuale_MR - 7 lingue.indd 7 21/07/14 17.44