Iriondo MB User manual

Instructions manual
Electropumps

Construcciones Mecánicas Iriondo S.A.
[email protected]
Table of Contents
1. General information ........................................................................................................................................2
1.1. User information......................................................................................................................................2
1.2. Instructions..............................................................................................................................................2
1.3. Warranty .................................................................................................................................................2
2. Description of the electropumps ...................................................................................................................2
2.1. General description.................................................................................................................................2
2.2. Proper use of the electropump ...............................................................................................................3
2.3. Misuse of the electropump......................................................................................................................3
3. Safety instructions..........................................................................................................................................3
3.1. General information ................................................................................................................................3
4. Transport, storage and installation ...............................................................................................................4
4.1. Transport.................................................................................................................................................4
4.2. Storage ...................................................................................................................................................4
4.3. Installation...............................................................................................................................................4
4.3.1 Installing pipes......................................................................................................................................4
4.3.2 Installation in the tank...........................................................................................................................4
5. Commissioning ...............................................................................................................................................5
5.1. Observations before commissioning.......................................................................................................5
6. Maintenance and repair ..................................................................................................................................5
7. Spare parts.......................................................................................................................................................6
7.1. Part order................................................................................................................................................6
7.2. Factory repair..........................................................................................................................................6
7.3. Parts view ...............................................................................................................................................6
8. Appendix..........................................................................................................................................................6
8.1. Disposing of the electropump .................................................................................................................6
8.2. Loss of motor power. ..............................................................................................................................6
8.3. Loss of pressure. ....................................................................................................................................6
EC Declaration of Conformity ..................................................................................................................................7
1. General information
1.1. User information
This operating manual includes important instructions
on how to use the electropump correctly and safely. It
is therefore essential that the technician in charge of
installing it reads and understands these instructions
before commissioning. These instructions must also
be kept safe and available for consultation in the place
of operation at all times.
The manual does not include legislation, rules and
regulations in the country where the electropump is
sold. The technician is in charge of ensuring
compliance with these regulations.
If you have any questions, please keep the details
shown on the electropump's nameplate to hand:
model, motor power and serial number.
1.2. Instructions
This electropump should only be used in accordance
with its original specifications and the instructions
manual.
The manufacturer is not liable for any injury or
damage caused by improper use.
1.3. Warranty
See the general sale terms and conditions to apply
the electropump's warranty.
The warranty includes the replacement or repair, free
of charge, of all defective parts acknowledged by the
manufacturer. This would be cancelled in the following
cases:
- If use does not comply with the instructions
described in this manual (see 2.2.).
- In the event of any modification or manipulation
of the electropump or its parts without the
manufacturer's authorisation.
- In the event of lack of maintenance.
2. Description of the electropumps
2.1. General description
The electropumps consist of an asynchronous three-
phase motor and a centrifugal or peripheral pump,
forming a compact unit.
We offer a wide range of electropumps in accordance
with their field of use, all of which are described
below.

Instructions manual
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3
MB Electropump
Open impeller vertical immersion centrifugal electropump.
Motor power between 0,08 –1,10 kW.
Flow rates between 30 - 200 l/min.
Working pressure between 2 - 30 metres.
Allows dry working.
BC Electropump
Closed impeller vertical immersion centrifugal electropump.
Motor power between 0,75 –7,50 kW.
Flow rates between 100 - 1200 l/min.
Working pressure between 5 - 40 metres.
Allows dry working.
BCT Electropump
Vertical immersion centrifugal electropump for decanting.
Motor power between 1,50 –2,20 kW.
Flow rates between 100 - 600 l/min.
Working pressure between 2 - 15 metres.
Allows dry working.
BCM Electropump
Multicellular immersion centrifugal electropump.
Motor power between 1,10 –4,00 kW.
Flow rates between 40 - 150 l/min.
Working pressure between 20 - 110 metres.
Fitted with mechanical seal.
BCM-2 Electropump
Multicellular immersion centrifugal electropump.
Motor power between 2,20 –11,00 kW.
Flow rates between 40 - 300 l/min.
Working pressure between 20 - 240 metres.
Fitted with mechanical seal.
EBP Electropump
Multicellular immersion peripheral electropump.
Motor power between 0,55 –4,00 kW.
Flow rates between 10 - 80 l/min.
Working pressure between 5 - 140 metres.
2.2. Proper use of the electropump
C.M.I. electropumps are designed to work with clean,
non-corrosive, explosive or flammable liquids, without
any abrasive parts that will attack their materials.
It is very important that the liquid to be pumped is
within the following values;
Cooling emulsion, cutting oil or
cooling oil.
Kinematic
viscosity
1 –40 mm²/s
Temperature
0 –80 °C
Please ask us if the liquid conditions are different to
those in the table.
2.3. Misuse of the electropump
Any use other than that described in point 2.2. or that
exceeds the mentioned limits will be considered non-
compliant and will not be covered by the warranty.
3. Safety instructions
3.1. General information
All safety regulations and laws in the country and/or
company where the pumps will be used must be
followed.
The following symbols will be used in this manual to
draw your attention to hazards.
CAUTION! Danger of injury.
Mechanical hazard warning.
CAUTION! Danger of injury.
Electrical hazard warning.
INFORMATION
Indications and warnings for correct handling.
-It is essential that the technician in charge of
installing it reads and understands these
instructions before commissioning. These
instructions must also be kept safe and available
for consultation in the place of operation at all
times.

Construcciones Mecánicas Iriondo S.A.
[email protected]
-Do not remove or modify the electropump plates.
The arrow showing turning direction must be kept
clearly legible at all times.
-Electrical equipment must only be installed and
maintained by a qualified electrician.
-The electropump is designed to work in
ventilated places protected from the weather,
remembering that the maximum ambient
temperature without loss of power in the electric
motor is 40 °C.
4. Transport, storage and installation
The electropumps are packaged in specially made
boxes to guarantee optimal shipping conditions. The
heaviest, bulkiest electropumps are mounted on a
pallet for easier transport.
Check that the packaging has not been
damaged during shipping.
Loading other goods on top is not allowed.
4.1. Transport
The motor eyebolts are designed to carry only the
weight of the motor. Only lift the electropump with
lifting and loading equipment that is in a perfect
condition and can withstand the load.
4.2. Storage
The electropump must be stored in an environment
which is dry, with constant temperature, is well
ventilated and free of vibrations, even during short
storage periods.
The bearings must be relubricated or replaced after
long periods of storage (over 2 years).
4.3. Installation
The customer must ensure that the electropump's
installation site is suitable. The environment where it
is installed must comply with the requirements set out
in section 3.1. General information.
Installing and commissioning in areas with a
potentially explosive atmosphere is strictly forbidden
unless the electropump is ATEX certified.
4.3.1 Installing pipes
Perfect operation of the electropump depends directly
and largely on proper assembly, both in terms of
suction and delivery.
It is essential to ensure the pump's suction inlet is
completely clean and free when installing.
-Suction
In immersion pumps, the pump vacates the liquid from
the submerged part. It is therefore necessary to
ensure that the impeller (or the lowest one, if several
are fitted) is completely covered when starting up the
pump. Once the pump has started up, this generates
a suction capacity corresponding to the NPSH level in
each case.
The models with a threaded lower cover include the
option to fix a pipe in order to extend suction beyond
the pump's physical limit, reaching the bottom of the
tank whenever necessary. The pump can be started
up beyond its impeller limit position if a foot valve is
applied to the bottom of this pipe.
If the aim is for the pump to completely empty the
tank, a pipe can be added in order to reach the end.
-Delivery
It is very important for the delivery pipe's diameter to
match the diameter of the pump's outlet. Shut-off
should be as close as possible to the end of the circuit
if we want to keep the pump's pressure and flow
characteristics as stable as possible.
Apart from installing a pressure gauge, fitting a shut-
off valve is recommended in order to regulate flow and
pressure.
4.3.2 Installation in the tank
Always respect the maximum and
minimum liquid levels.
Leaving a minimum distance of 20-50 mm between
the bottom of the tank and the suction inlet is
recommended, depending on the volume of flow that
the pump can decant.
A proportional filtering system should be fitted if the
liquid to be pumped contains a lot of solid particles or
these particles are large in size.
4.3.3 Electrical installation
The electrical connection must be completed by a
qualified company or person, always following local
regulations.
Good electrical installation is vital to electropump
operation, making it essential to check that the line
section from the machine’s electrical equipment
through to the pump motor is enough to maintain the
voltage required by the motor without any oscillations.
The electropump must also be installed with suitable
thermal protection and a magnetothermic switch to
ensure it stops in the event of overload or phase
failure.
There must be no foreign bodies, dirt or
moisture in the junction box. Hermetically
seal the junction box to prevent the ingress of
water and dust, but without blocking the
unused cable inputs.
The connection must comply with the following layout
in both triangle and star configuration, depending on
whether the motor pump connection is three-phase
type:
-Checking turning direction
The motor's turning direction must match the arrow
direction on the motor hood. To check, turn on and off
quickly (not exceeding 10 seconds).
If turning direction is incorrect, change either of the
two phases L1, L2 or L3 in the motor's terminal box.

Instructions manual
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5
5. Commissioning
5.1. Observations before commissioning
Make sure the requirements below are met before
starting up for the first time.
1. The motor's electrical connection is correct and
meets all safety requirements.
2. There is sufficient liquid level in the tank.
3. The suction mouth is clean and all sealing
devices are open in the suction part.
4. The pump shaft turns freely.
Pay special attention to the following points:
-The temperature of the liquid must never exceed
that specified.
- To avoid an excessive temperature increase in the
motor, the motor starting frequency should not
exceed the following reference figures.
Motor power [kW]
Maximum starting frequency
per hour
Up to 3,00
20
From 4,00 to 11,00
15
-To avoid overloading the motor, the viscosity of
the liquid must match the data shown in the
specifications (see point 2.2.).
The electropump must be turned off
immediately if any shaft vibrations,
noise, leaks, etc. are observed.
6. Maintenance and repair
The electropump must be monitored carefully during
operation, paying particular attention to the following
points.
The electropump must turn without any
vibrations, jerks or strange noises.
Allowing the electropump to work without liquid is
not recommended, although most can do so
without any problems since they do not have
mechanical seals.
BCM, BCM-2 and EBP-7 Type electropumps,
since they are fitted with a sliding mechanical
seal, must always work with refrigerant liquid; if
there is any risk of a lack of refrigerant liquid, a
level probe must be fitted in the tank in order to
shut down the electropump whenever the liquid
drops below a preset level. Pumps fitted with a
mechanical seal must always turn in the direction
indicated by the arrow on the motor, in order to
prevent damage to the spring.
Regularly check that current consumption does
not exceed the value shown on the nameplate.
Check that the thermal relay is set to 125% of the
consumption shown on the nameplate.
Renew the grease in the bearings every 5000
operating hours, removing the remaining grease,
cleaning, and introducing new lithium grease.
The most common causes of failure or malfunction
are detailed below, as well as their solutions.
Problem
Possible cause
Solution
The motor doesn't turn.
No power to the motor.
Check the condition of the electrical
equipment that supplies the motor.
The electropump works
but does not deliver any
flow.
Insufficient minimum liquid level.
Fill the tank with refrigerant liquid until the
indicated minimum level is exceeded.
Suction mouth and/or internal organs of
the electropump blocked.
Make sure the suction inlet is clean.
Take down the electropump and clean the
impeller and other elements where there is
dirt or solid particles.
Excessive total pressure height.
Review and check the geometric heights,
pipe runs, bends and other accessories in
the facility.
The motor turns in the opposite direction
to the arrow.
Interchange 2 of the 3 motor power phases.
The multicellular
electropump doesn't
deliver enough pressure.
Impellers in bad condition or obstructed.
Take down the pump and check the condition
of the impellers and diffusers. Changing
them, if they are in a poor condition.
Strange noise or vibration
in the shaft.
Wear in the electropump’s internal parts.
Take down the pump and check the fitting of
the worn parts, changing them if necessary.
Pump leaks.
Poor watertight integrity.
Meticulously check the watertight integrity of
the pump's seals and the joints to other
sleeves and accessories. Replace any seals
in a poor condition.

Construcciones Mecánicas Iriondo S.A.
[email protected]
Problem
Possible cause
Solution
The electropump loses liquid through
the seal.
Monitor the degree of dirt in the refrigerant
liquid. Liquids with solid particles in
suspension can easily scratch and wear the
faces of the mechanical seal.
Never turn the electropump without
refrigerant liquid.
A certain loss of liquid in the bottom is normal
in some models (those which allow work
without liquid), since they do not have sealing
joints.
7. Spare parts
7.1. Part order
The following information must be provided when
ordering spare parts for the electropump
-Electropump model.
-Motor details such as voltage and working
frequency.
-References of the parts to be replaced and their
quantities.
The electropump model is shown on the nameplate on
the motor's fan cover.
This information makes it easier for us to deliver the
right spare parts for your electropump.
7.2. Factory repair
Whenever the pump is returned to the factory for
repair or modification, be sure to include precise
information about all the faults observed and details of
the fluid pumped in the electropump.
7.3. Parts view
See the exploded view sheet. Ask your supplier if you
don't have one.
8. Appendix
8.1. Disposing of the electropump
The electropump must be disposed of in accordance
with local rules and regulations when it is so damaged
or deteriorated that it cannot be repaired.
The procedure to be followed would be as follows:
-Before disposing of the machine: collect the pump
fluid and dispose of it separately according to
local regulations.
- Separate the plastic and rubber parts, and deliver
them to a specialist centre for treatment.
-Scrap the metal parts.
Electropump components must not be disposed of
into the environment.
8.2. Loss of motor power.
The motors installed in C.M.I. electropumps are
suitable for working within the characteristic curves of
each model.
Motor power is calculated to work at sea level with an
ambient temperature of 20°C. This may be reduced at
temperatures above 40°C or at an altitude above 1000
m due to low air density.
8.3. Loss of pressure.
Flow resistance is calculated in the following table:
Accessory
GAS
1’’
1
¼’’
1
½’’
2’’
2
½’’
3’'
Equivalent pipe length [m]
45° bend
0,2
0,2
0,4
0,4
0,6
0,6
90° bend
0,4
0,6
0,9
1,1
1,3
1,5
90° gentle
bend
0,4
0,4
0,4
0,6
0,9
1,1
Check
valve
1,1
1,5
1,9
2,4
3,0
3,4
The table is validated with Hazen-Williams coefficient
C=100 (cast iron pipe). For steel pipes, multiply the
values by 1,41. For stainless steel, copper and cast
iron coated pipes, multiply the values by 1,8.

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7
EC Declaration of Conformity
The company Construcciones Mecánicas Iriondo S.A., holder of VAT number A-20076857, located in
Mendarozabal, 15 - 20850 Mendaro (Gipuzkoa), declares that it is solely liable for the following elements
manufactured by it:
MB, BC, BCT, BCM, BCM-2 and EBP type ELECTROPUMPS
Comply with the following directives:
2006/42/EC Council Directive on Machinery Safety.
2006/95/EC Council Directive on Low Voltage.
2004/108/EC Directive on Electromagnetic Compatibility.
2005/32/EC Council Directive on Ecodesign for Electric Motors. .
The following standards were checked to ensure compliance with the safety requirements set out in EC directives.
EN ISO 12100-1
EN ISO 12100-2
EN 61000-6-2
EN 61000-6-3
EN 809
EN 60034-1
EN ISO 14121-1
Starting up these electropumps before the machine they will be part of has been declared compliant with the
provisions of the Machinery Safety Directive is forbidden.
Pay attention to the instructions and specifications in the pump's installation manual before and during
commissioning and also in subsequent maintenance.
The EC Declaration of Conformity was issued in/on:
Mendaro, 22nd July 2019
Ignacio Iriondo Saint-Gerons
Technical Director
Construcciones Mecánicas Iriondo S.A.

[email protected]
Construcciones Mecánicas Iriondo S.A.
B° Mendarozabal 15
20850 Mendaro (Gipuzkoa)
Tel.: [phone]
Fax: [phone]
This document may be subject to change without notice.