Wilo BM User manual

Wilo-BM, BM-B, BM-S
Pioneering for You
2 103 933-Ed.06 / 2016-08-Wilo
de Einbau- und Betriebsanleitung
en Installation and operating instructions
fr Notice de montage et de mise en service
es Instrucciones de instalación y funcionamiento
el  Οδηγίεςεγκατάστασηςκαιλειτουργίας

Fig.1:
1a 1b 1c

English
Installation and operating instructions Wilo-BM, BM-B, BM-S 17
Installation and operating instructions
1 General
About this document The language of the original operating instructions is German. All
other languages of these instructions are translations of the original
operating instructions.
These installation and operating instructions are an integral part of
the product. They must be kept readily available at the place where
the product is installed. Strict adherence to these instructions is a
precondition for the proper use and correct operation of the product.
The installation and operating instructions correspond to the relevant
version of the product and the underlying safety regulations and
standards valid at the time of going to print.
EC declaration of conformity:
A copy of the EC declaration of conformity is a component of these
operating instructions.
If a technical modification is made on the designs named there with-
out our agreement or the declarations made in the installation and
operating instructions on the safety of the product/personnel are not
observed, this declaration loses its validity.
2Safety These operating instructions contain basic information which must
be adhered to during installation, operation and maintenance. For this
reason, these operating instructions must, without fail, be read by the
service technician and the responsible specialist/operator before
installation and commissioning.
It is not only the general safety instructions listed under the main
point “safety” that must be adhered to but also the special safety
instructions with danger symbols included under the following main
points.
2.1 Indication of instructions in the
operating instructions
Symbols General danger symbol
Danger from electrical voltage
NOTE
Signal words DANGER!
Acutely dangerous situation
Non-observance results in death or the most serious of injuries.
WARNING!
The user can suffer (serious) injuries. “Warning” implies that (seri-
ous) injury to persons is probable if this information is disregarded.
CAUTION!
There is a risk of damaging the product/unit. “Caution” implies that
damage to the product is likely if this information is disregarded.
NOTE:
Useful information on handling the product. It draws attention to
possible problems.

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18 WILO SE 08/2016
Information applied directly to the product, such as:
• Arrows indicating the direction of rotation,
• Identification for fluid connections,
• Rating plates and
• Warning stickers,
must be strictly complied with and kept in a fully legible condition.
2.2 Personnel qualifications The installation, operating and maintenance personnel must have the
appropriate qualifications for this work. The area of accountability,
responsibility and personnel monitoring are to be ensured by the
operator. If the personnel are not in possession of the necessary
knowledge, they are to be trained and instructed. This can be accom-
plished if necessary by the manufacturer of the product at the request
of the operator.
2.3 Danger in the event of non-
observance of the safety
instructions
Non-observance of the safety instructions can result in risk of injury
to persons and damage to the product/unit as well as environmental
hazards. Non-observance of the safety instructions results in the loss
of any claims to damages.
In particular, lack of care may lead to problems such as:
• Danger to persons from electrical, mechanical and bacteriological
influences.
• Pollution of the environment due to leakage of hazardous materials
• Damage to property
• Failure of important product/unit functions
• Failure of required maintenance and repair procedures
2.4 Safety consciousness on the job The safety instructions included in these installation and operating
instructions, the existing national regulations on accident prevention
together with any internal working, operating and safety regulations
of the operator are to be complied with.
2.5 Safety instructions for the operator This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of expe-
rience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible
for their safety.
Children should be supervised to ensure that they do not play with the
appliance.
• If hot or cold components on the product/unit cause hazards, meas-
ures must be taken by the customer to prevent them from being
touched.
• Guards which prevent moving components (such as the coupling)
from being touched must not be removed whilst the product is in
operation.
• Leakages (e.g. from a shaft seal) of hazardous fluids (e.g. explosive,
toxic or hot) must be led away so that no danger to persons or to the
environment arises. National statutory provisions are to be observed.
• Danger from electrical current must be eliminated. Local directives or
general directives [e.g. IEC, VDE etc.] and local power supply compa-
nies must be adhered to.
2.6 Safety instructions for installation
and maintenance work
The operator must ensure that all installation and maintenance work is
carried out by authorised and qualified personnel, who are sufficiently
informed from their own detailed study of the operating instructions.
Work on the product/unit must only be carried out when at a stand-
still. It is mandatory that the procedure described in the installation
and operating instructions for shutting down the product/unit be
complied with.

English
Installation and operating instructions Wilo-BM, BM-B, BM-S 19
Immediately on conclusion of the work, all safety and protective
devices must be put back in position and/or recommissioned.
2.7 Unauthorised modification and
manufacture of spare parts
Unauthorised modification and manufacture of spare parts will put
the safety of the product/personnel at risk and invalidate the state-
ments on safety made by the manufacturer.
Modifications to the product are only permissible after consultation
with the manufacturer. Original spare parts and accessories author-
ised by the manufacturer ensure safety. The use of other parts can
nullify the liability from the results of the usage.
2.8 Improper use The operating safety of the supplied product is only guaranteed when
used properly in accordance with the section in the operating instruc-
tions titled “Intended use”. The limit values must on no account fall
under or exceed those specified in the catalogue/data sheet.
3 Transport and interim storage
3.1 Shipping The pump is delivered from the factory packaged in a cardboard box
or secured to a pallet and protected against dust and moisture.
Transport inspection On arrival, inspect the pump immediately for any transport damage. If
damage is found, the necessary procedure involving the forwarding
agent must be taken within the specified period.
Storage Before installation, the pump must be kept dry, frost-free and pro-
tected from mechanical damage.
CAUTION! Risk of damage due to incorrect packaging!
If the pump is transported again at a later time, it must be packaged
so that it cannot be damaged during transport.
• Use the original packaging for this, or select equivalent packaging.
3.2 Transport for installation/removal
purposes
WARNING! Risk of personal injury!
Improper transport can lead to personal injury.
• The pump must be transported using approved load-bearing
equipment (e.g. block and tackle, crane, etc.). This must be secured
to the pump flanges and, if necessary, to the external diameter of
the motor (protection against slipping is required!).
• To lift with a crane, the pump must be supported by suitable belts,
as shown. Place loops around the pump which tighten from the
pump's own weight.
• The transport eyes on the motor are only for guiding while bearing
the load (See Fig. 2).
• The transport eyes on the motor are only for transporting the
motor, and are not approved for transporting the complete pump.
WARNING! Risk of injury due to the weight of the pump!
The pump itself and the parts of pump can be extremely heavy.
Falling parts pose a risk of cuts, crush injuries, bruises or impacts,
which may lead to death.
• Always use suitable lifting equipment and secure parts against fall-
ing.
• Never stand underneath a suspended load.
• Make sure the pump is securely positioned and is stable during
storage and transport as well as prior to all installation and other
assembly work.
Fig.2: Transporting the pump

English
20 WILO SE 08/2016
4 Intended use
Purpose Glanded pumps in the BM series, BM-B series and BM-S series are
intended for use as circulation pumps in building services.
Fields of application They may be used for:
• Hot water heating systems
• Cooling and cold water circulation systems
• Industrial circulation systems
• Heat carrier circuits
Restrictions The pumps are exclusively intended for installation and operation in
enclosed rooms. Typical installation locations are technical rooms
within the building with other domestic installations. No provision has
been made for direct installation of the device in rooms used for other
purposes (residential and work rooms). The following is not permit-
ted:
• Outdoor installation and operation outdoors
CAUTION! Risk of property damage!
Unpermitted substances in the fluid can destroy the pump. Abra-
sive solids (e.g. sand) increase pump wear.
Pumps without an Ex certificate are not suitable for use in poten-
tially explosive areas.
• The correct use of the pump/installation also includes following
these instructions.
• Any other use is considered to be incorrect use.
5 Product information
5.1 Type key The type key consists of the following elements:
Example: BM 50/170-7,5/2
BM In-line pump
BM-B Bronze version
BM-S Stainless steel version
50 Nominal diameter of the pipe connection [mm]
/170 Nominal diameter of the impeller [mm]
-7,5 Nominal power of the motor [kW]
/2 2- pole motor

English
Installation and operating instructions Wilo-BM, BM-B, BM-S 21
5.2 Technical data
When ordering spare parts be sure to state all the information given
on the pump and motor type plates.
Fluids If water/glycol mixtures with up to 40% glycol (or fluids with a differ-
ent velocity to pure water) are used, the pump data must be corrected
to match the higher viscosity, regardless of the percentage mixture
relationship and the fluid temperature. The motor power must also be
adjusted if necessary. Only use brand-name goods with corrosion
protection inhibitors and observe the manufacturer's instructions.
• The fluid must be sediment-free.
• Wilo's approval must be obtained for use of other media.
NOTE
Always read and follow the material safety data sheet for the fluid
being pumped!
5.3 Scope of delivery • Monobloc pump
• Installation and operating instructions
Property Value Remarks
Speed 2900, 1450 rpm
Nominal diameters DN 2900 rpm: 32-80
1450 rpm: 32-125
Pipe and pressure measurement connections Flange PN 10 EN 1092-2
Permissible min./max. fluid temperature -10 °C to +90 °C, +120 °C on request Depending on fluid
Ambient temperature min./max. 0 °C to +40 °C Lower or higher ambient
temperature on request
Max. admissible operating pressure 10 bar
Insulation class F
Protection class 55
Approved fluids Heating water according to VDI 2035
Cooling/cold water
Water/glycol mixture with glycol up to
40% vol. at max. +30 °C fluid tempera-
ture
Other fluids on request
Standard version
Standard version
Standard version
Electrical connection 3~400 V, 50 Hz
3~230 V, 50 Hz, up to 3 kW incl.
3~230 V, 50 Hz, from 4 kW
3~440 - 480 V, 60 Hz
Standard version
Alternative application for
standard version (no addi-
tional charge)
Special version or auxiliary
equipment (at additional
charge)
PTC thermistor sensor Special version or auxiliary
equipment (at additional
charge)
Speed control Control devices (Wilo CC/SC system) Standard version

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22 WILO SE 08/2016
5.4 Accessories Accessories must be ordered separately:
• PTC thermistor tripping unit for switch cabinet installation
5.5 Expected noise emission
(as orientation)
6Descriptionandfunction
Description of the product All pumps described here are compact construction, single-stage
low-pressure centrifugal pumps. The motor is connected to the pump
with a one-piece shaft. The pumps can be installed both directly as a
pipe installation pump in a sufficiently anchored pipe or placed on a
foundation base.
In conjunction with a control device (Wilo-CC/SC system), the flow
rate of the pumps can also be continuously controlled. This allows
optimisation of the pump output for the demands of the installation
and economically efficient pump operation.
The pump housing has a block design, i.e. the suction and pressure
side flanges are arranged at 90° to each other. All pump housings are
provided with pump bases. Mounting on a foundation base is recom-
mended for nominal motor powers of 5.5 kW and higher.
7 Installation and electrical
connection
Safety DANGER! Danger of death!
Incorrect installation and improper electrical connections can
result in a risk of fatal injury.
• Have the electrical connections established by approved electri-
cians only, in compliance with the applicable regulations.
• Accident prevention regulations must be observed!
• In the case of insulated systems, only the pump housing may be
insulated, not the lantern and motor.
CAUTION! Risk of property damage!
Danger of damage due to incorrect handling.
• Have the pump installed by qualified personnel only.
• When pumping out of a tank, ensure that the liquid level is always
high enough above the suction port of the pump so that the pump
never runs dry. The minimum intake pressure must be observed.
7.1 Installation • A settling section must be provided before and after the pump, in the
form of a straight pipe. The length of this settling section should be at
least 5 x DN of the pump flange (See Fig. 3). This measure serves to
avoid flow cavitation.
Sound pressure level pA [dB] *)
*. Spatial mean value of sound pressure levels on a square plate at a distance of 1 m from
the surface of the motor.
Motor power Pump with motor
PN[kW] 1450 min –1 2900 min –1
≤4,00 64 70
5,50 - 18,5 66 75
22,0 - 37,0 70 77

English
Installation and operating instructions Wilo-BM, BM-B, BM-S 23
• The pump should only be installed after completion of all welding and
soldering work and, if necessary, flushing of the pipe system. Dirt can
prevent the pump, and especially the mechanical shaft seal, from
functioning properly.
• The standard pumps must be protected from the weather and
installed in a frost and dust-free, well-ventilated and non-explosive
environment.
• Install the pump in an easily accessible location in order to make later
inspection, maintenance work or replacement as easy as possible.
• A hook or a lug with sufficient bearing capacity should be installed
vertically over the pump (for total weight of the pump: see catalogue/
data sheet). This is to allow hoisting gear or similar aids to be attached
during maintenance or repair work on the pump.
• Lift the pump using permitted load-bearing equipment (see section
3).
• Minimum axial distance between a wall and the fan cover of the
motor: Free dismantling dimension of min. 250 mm + Ø of the fan
cover.
• Shut-off devices must be installed without fail in front of and behind
the pump in order to avoid the entire system being drained when the
pump is inspected or exchanged.
• If there is a danger of return flow, a non-return valve must be used.
• Pipes and pumps should be installed in a stress-free condition. The
pipes must be fixed in such a way that the pump is not supporting the
weight of the pipes.
• The vent plugs should always point upwards.
Any installation position is allowed except for “motor facing down”.
The motor terminal box must not face downward. If necessary, the
motor or motor impeller unit can be rotated once the necessary hous-
ing has been loosened.
CAUTION! Risk of property damage!
Danger of damage due to incorrect handling.
• When rotating, take care not to damage the housing seal.
7.2 Electrical connection
Safety DANGER! Risk of fatal injury!
A fatal shock may occur if the electrical connection is not made
correctly.
• Only allow the electrical connection to be made by an electrician
approved by the local electricity supplier and in accordance with
the local regulations in force.
• Observe the installation and operating instructions for the acces-
sories!
Preparation/Notes • Electrical connections must run [in accordance with VDE 0730/Part 1]
via a fixed connection line equipped with a connector device or all-
pole switch with at least 3 mm contact opening width.
• In order to ensure drip protection and the strain relief on the threaded
cable connection, use connection lines with a sufficient outer diame-
ter. Position the threaded cable connection or lay the cables accord-
ingly to ensure that no drips can run into the terminal box.
• A sufficiently heat-resistant connection line must be used when the
pumps are utilised in systems with water temperatures above 90 °C.
• The connection line is to be laid in such a way that it cannot under any
circumstances come into contact with the pipe and/or the pump and
motor housing.
• Check the current type and voltage of the mains connection.
• Observe the data on the name plate of the motor.
Fig. 3: Settling section before and after the
pump
r
5 x DN
d s
r §2,5 · (d - 2s)