EBARA Motor Driven Pump User Manual

EBARA Motor Driven Pump User Manual

INTRODUCTION

This instruction manual is made up of two parts: PART 1 which contains general information regarding all our production and PART 2 which con-tains specific information regarding the motor-driven pump that you have purchased. The two booklets are complementary to each other, there-fore make sure that you have both of them. Follow the instructions given in these booklets in order to obtain optimum return and operation from your motor-driven pump. If any other information is necessary, please contact the nearest authorised retailer. If the booklets contain contrasting information, keep to what is indicated in PART 2 (product specifications).

THE REPRODUCTION, EVEN PARTIAL, OF THE ILLUSTRATIONS AND/OR TEXT HEREIN IS FORBIDDEN.

The following symbols are used throughout the instruction booklets:

WARNING!
Risk of damaging the pump or the system

Risk of injuring people or damaging things

Risks of an electrical nature

MANUFACTURER IDENTIFICATION DATA

MANUFACTURER DATA EBARA PUMPS EUROPE S.p.A.

Registered office:
Via Campo Sportiva, 30 – 38023 CLES (TN) ITALY Telephone: 0463/660411 – Telefax: 0463/422782

Assistance Service:
e-mail: tcs@ebaraeurope.com
Tel. +39 0444 706968

MOTOR-DRIVEN PUMPS

See FIG. 6:
for motor-driven surface pumps
for submersible motor-driven pumps
For product type. see PART 2.

GUARANTEE AND TECHNICAL ASSISTANCE

THE GUARANTEE IS RENDERED NULL AND VOID IF THE IN-STRUCTIONS GIVEN IN THIS BOOKLET ARE NOT ADHERED TO AND/OR IF ANYONE OTHER THAN PERSONNEL FROM OUR HELP CENTRES INTERVENES ON THE MOTOR-DRIVEN PUMP. IN THESE CASES, THE MANUFACTURER IS RELIEVED FROM ALL RESPONSIBILITY REGARDING INJURY TO PEOPLE AND SUBSEQUENT DAMAGE TO ADJACENT ITEMS ANDIOR THE MO-TOR-DRIVEN PUMP ITSELF.

Once you have received the motor-driven pump, make sure that the packag-ing is not broken or seriously damaged. If it is, immediately inform the person who delivered it. After extracting the motor pump from its packaging, make sure that it was not damaged during transportation. If it has been, inform the retailer within 8 days from delivery. Check the motor-driven pump plate to ensure that the indicated characteristics are those requested by you.
The following parts, being normally subject to wear, have a limited guarantee:

• bearings
• mechanical seals
• grommets
• capacitors

If a fault that is not listed in the “TROUBLESHOOTING” table (chapter 10.1.) occurs, please contact the nearest authorised retailer.

GENERAL SAFETY WARNINGS

Before starting the motor-driven pump, the user must follow the operations indicated in this manual (PART 1 and PART 2), and apply them each time the motor-driven pump is used or when maintenance is carried out on it.

PREVENTIVE MEASURES TO BE TAKEN BY THE USER

Users must observe the accident prevention regula-tions that are in force in their countries at the hme. They must also pay attention to the motor-driven pump characteristics (see “TECHNICAL DATA” in PART 2). Always wear protective gloves when handling the pump or performing maintenance.

While repairing or carrying out maintenance on the motor-driven pump, disconnect the electric supply. Doing this avoids accidental starting, which could injure people and/or cause damage.

The device can be used by children aged above 8 years and by persons with reduced physical, sensory or mental abilities, or who lack adequate experience and knowledge of the product, provided that they are supervised or have been adequately instructed on its safe use and the relevant risks involved. Children must not play with the device. Cleaning and mainte-nance to be carried out by the user must not be effect-ed by unsupervised children.
Any maintenance, installation or handling carried out on the motor-driven pump while it is still being pow-ered can seriously injure, or even kill, people.
When starting the motor-driven pump, users must en-sure that their feet are not bare or, worse, immersed in water. They must also ensure that their hands are not wet.
Users must not operate or carry out any work on the motor-driven pump that is not permitted in this manual.

Stop operation in case pump is in failure. Operation of broken pumps can cause injury or damage property.
Do not touch the pump when the liquid handled is hot water. Bums may result from high temperatures.
Do not touch the motor. The motor’s surfaces will be hot, and you could get bumed if you touch them.
Do not touch the rotating parts such as the spindle, shaft couplings, V-pulleys, etc. while the pump is run-ning. Since these parts rotate at high speed, doing so could result in injury.
Do not touch the live parts when the power is on. There is a risk of electric shock.

IMPORTANT PROTECTIONS AND CAUTIONS

All motor-driven pumps are designed in such a way that all moving parts are made safe by using guards.

The manufacturer declines any responsibility in the event of damages caused by the removal of said protections.

Each conductor or powered part is electrically insula-ted with regards to earth. Extra security is also added by connecting the accessible conducting parts to an earth conductor. This ensures that accessible parts cannot become dangerous should the main insula-tion become faulty.

RESIDUAL RISKS FOR SURFACE PUMPS
Residual risks include the following:

a) The possibility of coming into contact (even if not accidentally) with the motor’s cooling fan by inserting thin objects (e.g. screwdrivers, sbcks and similar) through the fan cover holes.
b) For single-phase pumps, possible start-up without notice due to au-tomatic rearm of the motor protection device, following the latter’s intervention due to motor overheating.

TECHNICAL-PRODUCTION CHARACTERISTICS

The motor-driven pump you have purchased has been designed and manufactured in compliance with the following directives:

• MECHANICAL HAZARDS (Annex I Machinery Directive): – UNI EN ISO 12100
• ELECTRICAL HAZARDS (Annex I Machinery Directive): – UNI EN ISO 12100 – CEI EN 60204-1
• VARIOUS RISKS (Enclosure I Machines Directive): – 2006142/EC – Enclosure I

The electrical components and relative circuits installed on the mo-tor-driven pumps are in accordance with the CEI EN 60204-1 Directive.

INSTALLATION AND DISMANTLING, TRANSPORT AND STORAGE

WARNING!

INSTALLATION MUST BE CARRIED OUT BY A QUALIFIED ENGINEER.

GENERAL INSTALLATION PRECAUTIONS

a) Use metal or lipid plastic pipes in order to avoid their yielding because of the depression created at suction;
b) support and align pipes so that they do not put any stress co the pump;
c) avoid throttlings caused by bending suction and delivery hoses:
d) seal any piping connections: air infiltration in the suction pipe negatively affects pump operation;
e) we recommend that a non-return valve and a gate are installed on the delivery pipe at the motor-driven pump outlet;
f) fix the piping to the reservoir or to any faced parts so that it is not support-ed by the pump;
g) do not use a lot of bends (goosenecks) and valves;
h) on SURFACE PUMPS installed above head, the suction pipe should be fitted with a tot valve and filter in order to prevent foreign matter from entering and its end should be immersed at a depth that is at least twice the diameter of the pipe; its distance from the bottom of the reservoir should also be one and a half times its diameter. For suctions longer than 4 metres use an oversized pipe (1/4″ wider at suction for improved efficiency).

INSTALLATION

a) Position the pump on a flat surface that is as close as possible to the water source. Leave enough space around the pump to allow safe use and maintenance. A free space of at least 100 mm must be kept in front of the cooling fan of surface pumps in all cases;
b) lower submersible pumps using a rope fixed to the handle and hooks provided; c) use pipes of suitable diameters (see PART 2) fitted with threaded sleeves that must be screwed onto the pump suction and delivery un-ions or its threaded munterfianges;
d) SURFACE PUMPS cannot be moved or used in the open except as stated in PART 2;
e) for specific instructions, consult the chapter PREPARING FOR USE in PART 2.

DISMANTLING

The following must be done when moving or dismantling the motor pump:

a) disconnect the Stitt supply;
b) remove the delivery and suction pipes (where present) if too long or bulky;
c) if present, unscrew the screws that secure the motor-driven pump to its supporting surface;
d) if present, hold the power cable;
e) lift the motor-driven pump using equipment suitable to the pump weight and dimensions (refer to the plate).

TRANSPORTATION

The motor-driven pump is packed in a carton or can be fixed to a wooden pallet, if pump weight and dimensions allow it. Transportation should not, in any case, present any particular problems. Verify the total weight stamped on the box.

STORAGE

a) The product must be stored in a covered and dry place, far away from heat sources and protected against dirt and vibrations.
b) Protect the product against damp conditions, heat sources and me-chanical damage.
c) Do not place heavy objects on the packaging.
d) The product must be stored at an ambient temperature between +5°C and +40°C (41°F — 104°F) with a relative humidity of 60%.

ELECTRICAL CONNECTION

ELECTRICAL CONNECTION MUST BE CARRIED OUT BY A QUALIFIED ENGINEER.
IT IS ADVISABLE TO INSTALL A HIGH INTENSITY DIFFER-ENTIAL SWITCH (0.03 A) ON BOTH THE THREEPHASE AND SINGLE PHASE VERSIONS.

WARNING!

Motor-driven pumps not equipped with a plug must be powered by connecting them permanently to the elec-trical cabinet equipped with a switch, fuses and thermal cut-out calibrated to the pump’s absorbed current
The mains must be reliably earthed, according to the electrical regulations in force in the user’s country: this is the installer’s responsibility.
If the motor-driven pump is supplied without a power cable, use a cable that complies with the regulations in force and the necessary section ac-cording to length, power and mains voltage.
If present, the plug of the single phase version must be connected to the mains far from sprays, water jets or rain and it must be accessible.
The three phase version does not have an internal motor protector, therefore overload protection must be provided by the user.

MOTOR-DRIVEN SURFACE PUMPS
WHILE CONNECTING, MAKE SURE THAT BOTH THE TERMINAL BOARD AND THE MOTOR DO NOT GET WET.

• Connection of the single phase versions must be made on the basis of whether thermoamperometric protection “P’ is internal (FIG. 1) or external (FIG. 2).
• For threephase versions, after connecting the star (FIG. 3) or triangle (FIG. 4) cable to the terminal board, looking at the pump from the motor side, check that the cooling fan turns in the same way as the arum on the label applied on the fan cover. If it is incorrect, swap two of the three wires over on the motor’s terminal strip.
• For applications with inverter use a cable length <25 meters. SUBMERSIBLE MOTOR-DRIVEN PUMPS
• In single phase versions, plug the unit into the socket.
• For threephase versions (FIG. 5), check that the motor turns in a dock-wise direction looking at the pump from the top, proceed as follows: with the motor-driven pump not yet secured to the system, connect the power cable to the terminal board and switch on briefly; the pump shall start with a kick in an anti-clockwise direction, seen from the top of the pump. If the direction is wrong (clockwise), invert two of the three wires in the terminal board of the electrical panel.

FIG. 7 shows the standard voltages shown on the plate with their respec-tive tolerances.

ADJUSTMENTS AND RECORDINGS

In pumps fitted with a float, adjust the length of the float cable with regards to the minimum and maximum value of the water (see PART 2).

Check that the system automatisms do not require a number of start-ups higher than the number shown in FIG. 8 for surface pumps and in PART 2 for submersible pumps.

USE AND STARTING

NEVER ALLOW THE MOTOR-DRIVEN PUMP TO OPERATE WITH-OUT WATER. DOING SO CAN SERIOUSLY DAMAGE THE INTERNAL COMPONENTS.

GENERAL WARNINGS

a) Our surface pumps are designed to operate at a temperature no higher than 40°C and a level no higher than 1000 metres;
b) our motor-driven pumps cannot be used in swimming pools or similar plants;
c) prolonged motor pump operation with the delivery pipe closed can cause damage;
d) Avoid switching the motor pump on and off more than 50,000 times a year. If operate the pump on and off more than 50,000 times per year, the pump Re may be shortened and there is a risk of premature failure. Regarding the maximum number per hour, please refer also Chapter 8;
e) during power cuts, it is advisable to disconnect the power to the pum;
f) Select the pump so that it will operate close to the best efficiency point, at least between minimum and maximum rated flow rate.

STARTING

a) Start the pump two or three times to check system conditions;
b) restrict the delivery to cause a rapid pressure increase for a few times;
c) make sure that the noise, vibration, pressure and electrical voltage lev- els are normal. 9.3.

STOPPING

a) Gradually interrupt water circulation in the delivery section to avoid overpressure in the piping and pump caused by water hammering;
b) Cut off the power supply.

MAINTENANCE AND REPAIRS

We recommend periodically checking that the pump is working correctly; pay particular attention to any abnormal noise or vibration and, for surface pumps, any mechanical seal leaks. The main and most common special maintenance operations are generally as follows:

• replacement of mechanical seals
• replacement of grommets
• replacement of bearings
• replacement of capacitors.

When the SURFACE pump remains inactive for a long period, it should be emptied completety, removing the discharge and fling caps, washed carefully with dean water then emptied. Do not leave water deposits inside. This operation must always be carried out whenever there is a chance of frost in order to avoid the breakdown of the pump components. If the power cord needs changing on submersible pumps, this must be done by an assistance centre only

TROUBLESHOOTING

THE PUMP DOES NOT WORK
The motor turns| Float sticking| Check that the float reaches the level ON
Thermal protection activated (single phase)| It reactivates automatically (single phase only)
Incotrect electrical connection| Check the terminal board and the electrical panel
Automatic switch triggered or fuses blown| Reset the switch or replace the fuses and verify the cause
No electricity| Check the electrical supply meter
Plug not inserted| Check the connection to the power supply
THE PUMP DOES NOT WORK The motor turns| Decrease in the line voltage| Wait for voltage to return to normal
Suction filter f hole blocked| Clean the fitter / hole
Foot valve blocked| Clean the valve and check its operation
Pump not primed| Prime the pump Check any delivery non-retum valves Check the liquid level
Pressure too low| Restrict the delivery gate
THE PUMP WORKS with a reduced flow rate| System undersized| Re-examine the system
System dirty| Clean the piping, valves, fitters
Water level too low| Switch off the pump or immerse the foot valve
Incorrect rotational direction (threephase only)| Invert the two phases
 Incorrect supply voltage| Supply the pump with the voltage indicated on the ate
Leaks from piping| Check the joints
Pressure too high| Recheck the system
THE PUMP STOPS AFTER WORKING FOR BRIEF PERIODS Thermal protection intervention| Liquid temperature too high| The temperature ex-ceeds the technical limits of the pump
Internal fault| Contact the nearest retailer
THE PUMP STOPS AFTER WORKING FOR BRIEF PERIODS Pressure applications| The difference between maximum and min-imum pressure is minimal| Increase the difference between the two pressures
THE PUMP DOES Maximum NOT STOP pressure applications| Maximum Pressure too high| Set maximum pressure at a lower value
THE PUMP VIBRATES Or is too noisy du-ring operation| Flow rate too high| Reduce the flow rate
Cavitation| Contact the nearest retailer
Irregular piping| Fix in a better way
Noisy bearing| Contact the nearest retailer
Foreign bodies sliding along the motor fan| Remove the foreign bodies
Incorrect priming| Bleed the pump and/or fill it again

DISPOSAL

This product falls within the scope of Directive 2012/19/EU regarding the management of electrical and electronic equipment waste (WEEE). Electronic- electrical equipment must not be disposed of with domestic waste as it is made of various materials that can be recycled at the appropriate facilities. Inquiries should be made through the municipal au-thorities regarding the location of the ecological platforms that receive products for disposal and their subsequent correct recycling.
Furthermore, it is worth remembering that, upon purchase of an equi-valent appliance, shops are obliged to collect the product for disposal free of charge.
This product is not potentially dangerous for human health and the environment, since it does not contain harmful substances as per Dir-ective 2011/65/EU (RoHS), yet if abandoned in the environment it has a negative impact on the ecosystem.
Read the instructions carefully before using the appliance for the first time. It is recommended that you do not use this product for any pur-pose other than that for which it was intended; there is danger of elec-tric shock if used improperly.
The crossed-out bin symbol found on the appliance label indicates the compliance of this product with the regulations regarding electrical and electronic equipment waste.
Abandoning the appliance in the environment or its illegal disposal is punishable by law. Specific cases are, however, indicated in the “DIS-POSAL” chapter in PART 2.
This symbol on the pump means that it cannot be disposed of with household waste.

SUPPLIED TECHNICAL DOCUMENTATION

DRAWING SHOWING THE ELECTRICAL CONNECTIONS OF A SINGLE PHASE MOTOR-DRIVEN PUMP

See FIG. 1-2

DRAWINGS SHOWING THE ELECTRICAL CONNECTIONS OF A THREEPHASE PUMP

See FIG. 3-4-5

EXAMPLE OF A PLATE

See FIG. 6.1-6.2 (The manufacturer reserves the right to modify it).

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