Grundfos BMST Series User manual

BMS
BMS hs, BMST, BMSX
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

Declaration of conformity
2
Declaration of conformity
GB: EC declaration of conformity
We, Grundfos, declare under our sole responsibility that the product
BMS, to which this declaration relates, is in conformity with these Council
directives on the approximation of the laws of the EC member states:
— Machinery Directive (2006/42/EC).
Standard used: EN 809:2009.
— EMC Directive (2004/108/EC).
Standards used: EN 61000-6-2:2005, EN 61000-6-3:2007.
This EC declaration of conformity is only valid when published as part of
the Grundfos installation and operating instructions (publication number
98567337 1013).
DK: EF-overensstemmelseserklæring
Vi, Grundfos, erklærer under ansvar at produktet BMS som denne
erklæring omhandler, er i overensstemmelse med disse af Rådets
direktiver om indbyrdes tilnærmelse til EF-medlemsstaternes lovgivning:
— Maskindirektivet (2006/42/EF).
Anvendt standard: EN 809:2009.
— EMC-direktivet (2004/108/EF).
Anvendte standarder: EN 61000-6-2:2005, EN 61000-6-3:2007.
Denne EF-overensstemmelseserklæring er kun gyldig når den publiceres
som en del af Grundfos-monterings- og driftsinstruktionen (publikations-
nummer 98567337 1013).
Bjerringbro, 10th May 2010
Jan Strandgaard
Technical Director
Grundfos Holding A/S
Poul Due Jensens Vej 7
8850 Bjerringbro, Denmark
Person authorised to compile technical file and
empowered to sign the EC declaration of conformity.

English (GB)
3
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
2. Product introduction
Grundfos BMS, BMST and BMSX booster systems are designed
for desalination of seawater or brackish water in reverse osmosis
systems, the so-called SWRO systems (SWRO = Sea Water
Reverse Osmosis). The design of the systems ensure high
energy recovery.
2.1 Delivery and handling
2.1.1 Delivery
The pumps are supplied from the factory in proper packing in
which they should remain until installation.
2.1.2 Frost protection
If the pumps have to be stored, the location must be frost-free.
1. Symbols used in this document 3
2. Product introduction 3
2.1 Delivery and handling 3
2.2 Nameplate 4
2.3 Commissioning 4
2.4 Pumped liquids 4
2.5 Filtration 4
2.6 Flushing and salinity 4
2.7 Foundation 4
3. Before installation 5
3.1 Reading guide 5
4. Mechanical installation 5
4.1 BMS hs pump 5
4.2 BMST system 8
4.3 BMSX system 10
5. Electrical installation 11
5.1 BMS hs pump 11
5.2 BMS hp pump 11
5.3 BMST system 11
5.4 BMSX system 11
6. Commissioning 11
6.1 BMS hs system 11
6.2 BMST system 12
6.3 BMSX system 13
6.4 Low-pressure flow control 15
7. Shutdown 15
7.1 BMS hs system 15
7.2 BMST system 16
7.3 BMSX system 16
7.4 Flushing 17
8. Operation 17
8.1 Motor bearings 17
9. Periods of inactivity 17
9.1 Startup after a period of inactivity 17
10. Fault finding 18
10.1 BMS hs and BMST 18
10.2 BM hp 19
10.3 Pressure exchanger 20
11. Checking the motor and cable 21
12. Technical data 22
13. Disposal 22
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
If these safety instructions are not observed,
it may result in personal injury.
Caution
If these safety instructions are not observed,
it may result in malfunction or damage to the
equipment.
Warning
The sound pressure level is so high that hearing
protection must be used.
Note
Notes or instructions that make the job easier
and ensure safe operation.
Caution
During delivery and storage, the pumps must
never be preserved with glycerine or similar
liquids which are aggressive to the pump
materials.

English (GB)
4
2.2 Nameplate
Fig. 1 Nameplate
2.3 Commissioning
Commissioning of BMSX booster systems must be carried out by
certified Grundfos employees to ensure long and trouble-free
operation.
Commissioning includes onsite training of the people who will be
responsible for maintaining and monitoring the system.
2.4 Pumped liquids
Thin, non-explosive liquids, not containing solid particles or
fibres. The liquid must not chemically attack the pump materials.
In case of doubt, contact Grundfos.
The pumps must never operate with water/liquid containing
substances which would remove the surface tension, e.g. soap.
If this type of detergent is used to clean the system, the water/
liquid must be led around the pumps via a bypass.
2.5 Filtration
BMS hs, BMST: The raw water must be filtered to maximum
30 microns.
BMSX: The raw water must be filtered to maximum 10 microns.
Fig. 2 Filtration
2.6 Flushing and salinity
When the booster system is stopped, it is very important to flush
the system according to these guidelines.
See also the flush procedure in section 9.1.1 Frequency of starts
and stops.
2.7 Foundation
The foundation must be constructed to safely support the booster
system or pump(s) under all conditions. The pump and motor
must be installed at the same level.
The foundation must be strong enough to support the weight of
the both units.
2.7.1 Vibration dampening
The vibration dampeners supplied with the BMS hs pump must be
used.
TM05 9242 3613
Pos. Description
1 Type designation
2
Model designation:
• generation
• product number
• production code (ddmmyy).
3 Rated flow rate
4 Rated head
5 Rated speed
6 Minimum and maximum inlet pressure
7 Maximum discharge pressure
8 Minimum and maximum liquid temperature
9 Net weight of booster module
10 Minimum efficiency index
11 Country of origin
12 CE mark
13 TR mark
Note
If this requirement is not met, the warranty will be
invalidated.
Warning
The pumps must not be used for pumping
flammable or combustible liquids such as diesel
oil, petrol or similar liquids.
N/A
1
2
3
4
5
6
7
8
9
10
11 12 13
TM05 8862 2813
Pos. Description
1 Raw-water feed pump
2 Pressure gauge (raw water)
3 Low-pressure switch
4Flowmeter
5 Pressure gauge (fresh-water pump)
6 Fresh-water flush pump
Pump type Filter
[micron absolute]
BMS hs 30
BM hp 30
BMST 30
Pressure exchanger 10
Pump type Fresh water pmin
[bar]
Max. salinity
[ppm TDS] Flush time [min.]
BMS hs 2 1000 5-10
BM hp 2 1000 5-10
BMST 2 1000 5-10
Pressure
exchanger 2 1000 5-10
1
2
3
4
5
6
Filter

English (GB)
5
3. Before installation
1. Check that the pump has not been damaged during
transportation.
2. Check that the type designation corresponds to the order.
See the pump nameplate.
3. Compare the motor voltage and frequency details on the
motor and frequency converter nameplates with the power
supply available.
3.1 Reading guide
Select system/pump type.
4. Mechanical installation
4.1 BMS hs pump
The pump can be mounted directly on the floor or on a base
frame (accessory).
Fig. 3 BMS hs pump
4.1.1 Location
To ensure sufficient cooling of the motor, a free space of minimum
100 mm behind the motor (NDE) is required.
4.1.2 Lifting and handling the motor
Use all lifting eyes when lifting the motor, and lower it down
slowly.
Fig. 4 Example of how to lift the motor
The positions of the lifting eyes and the minimum dimensions of
the lifting bars are shown below.
Fig. 5 Dimensions of lifting equipment
System/
pump Step Action Section
BMS hs
1Mechanical
installation 4.1 BMS hs pump.
2Electrical
installation 5.1 BMS hs pump.
3 Commissioning 6.1 BMS hs system.
BMST
1Mechanical
installation 4.2 BMST system.
2Electrical
installation 5.3 BMST system.
3 Commissioning 6.2 BMST system.
BMSX
1Mechanical
installation 4.3 BMSX system.
2Electrical
installation 5.4 BMSX system.
3 Commissioning 6.3 BMSX system.
TM05 9569 4113
Warning
Observe local regulations concerning limits for
manual lifting or handling.
Warning
Use all lifting eyes on the motor, and make sure
that the crane is suitable for the job. Use certified
and approved lifting equipment. See nameplate.
TM05 9235 3613TM05 9556 3913
Horizontal position
Motor
type A [mm] e [mm] H [mm] ∅t [mm]
200 260 260 165 25
225 300 150
Caution
If these instructions are not followed, there is a
risk of warping or crushing some equipment
such as the terminal box, cover or drip cover.

English (GB)
6
4.1.3 Motor installation
The motor must be level. If there is a gap between the foundation
and motor, use a spirit level, a feeler gauge and shims to level the
motor. Then secure the motor by means of suitable bolts
depending on the foundation.
Direction of rotation
Connect the power supply (see section 5. Electrical installation)
and check the direction of rotation. The direction of rotation must
correspond to the direction under normal operation. See the
installation and operating instructions for the motor.
4.1.4 Lifting and handling the pump
Hoist the pump into place, and lower it down slowly.
Fig. 6 Example of how to lift the pump
Make the pump fit the motor flange. Fit the pump support foot
delivered with the product. Lower the pump until the support foot
reaches the floor.
4.1.5 Alignment of motor and pump
Align the motor and pump before you tighten the bolts. To ensure
correct installation, follow this procedure:
Caution
Use vibration dampers.
Warning
The electrical installation should be carried out
by an authorised person in accordance with local
regulations.
TM05 9236 3613
Step Description Picture
1
Fit all four bolts for
motor and pump
connection.
Do not tighten the
bolts yet.
TM05 9234 3613
2
Adjust the gap by
means of a feeler
gauge or similar tool.
Tighten one bolt by
hand.
TM05 9232 3613
3
Adjust the gap 180 °
opposite the bolt you
just tightened.
Do not tighten the
bolt. Move the pump
to adjust the gap.
TM05 9251 3613
4
Move the pump, and
adjust the gap by
means of the feeler
gauge. Tighten the
bolt by hand. If the
inlet pipe has to be
turned, see section
4.1.6 Position of the
inlet pipe.
TM05 9345 3613
5
When the gap has
been adjusted, cross-
tighten all bolts to
33 Nm.
TM05 9346 3613
6
Fasten the support
foot to the
foundation.
TM05 9345 3613
Caution
The support foot must not impose any tension on
the pump!

English (GB)
7
4.1.6 Position of the inlet pipe
If you want to change the position of the pipe, follow this
procedure.
4.1.7 Flushing the system
4.1.8 Pipe connection
Both the inlet and the discharge pipe are fitted with clamp liners
for Victaulic couplings and must be supported close to the end of
the pipe.
Fig. 7 Pipe support
When fitting the couplings, it is important to allow a gap of 3.5 mm
between the two pipes. See fig. 8.
Fig. 8 Gap between pipes
Step Description Picture
1Remove M10 bolts.
Loosen M12 bolts.
TM05 9347 3613
2Mark up the pump
sleeve and union nut.
TM05 9573 4013
3
Turn the inlet pipe to
the needed position,
and make sure the
union nut follows.
TM05 9343 3613
4 Check the marking.
TM05 9342 3613
5
Fit all bolts again.
Tighten all bolts to
33 Nm.
TM05 9343 3613
6
Fasten the support
foot to the
foundation.
TM05 9345 3613
Caution
To avoid impurities in the pump, flush the pipes
before you connect the pump inlet and discharge
pipes.
TM05 9230 3613
Caution
Avoid stress in the pipe system.
TM05 9344 3613
Service connector

English (GB)
8
Discharge pipe
In order to facilitate service of the pump and motor, it is important
that the delivered service connector is built into the system.
1. Fit the two rubber parts.
2. Install the service connector.
Fig. 9 Position of rubber parts
3. Move the two rubber parts over the service connector.
Fig. 10 Position of service connector and rubber parts
4. Fit the Victaulic couplings and tighten the bolts to 33 Nm.
Fig. 11 Victaulic couplings
If installing a BMS hs pump, you are now ready for electrical
installation. See section 5.1 BMS hs pump.
If building a BMST system, see section 4.2.2 Lifting and handling
the BMT pump.
If building a BMSX system, see section 4.3.2 Installation of BM hp
pump.
4.2 BMST system
A BMST system is built by using a BMS hs as primary pump and
a BMT as secondary pump. The BMT pump is driven by the high-
pressure concentrate from the membrane and used as feed pump
for the primary BMS hs pump.
Fig. 12 BMST system
Fig. 13 BMT pump
4.2.1 BMS hs pump installation
See section 4.1 BMS hs pump.
4.2.2 Lifting and handling the BMT pump
1. Hoist the pump into place, and lower it down slowly.
2. Install and secure the pump.
3. Support the pump close to the turbine, using the bracket
behind the turbine housing.
4. Use a clamp or similar device at the other end. See the
example in fig. 12.
4.2.3 BMT pump installation
The BMT pump must be level. If there is a gap between the
foundation/frame and the BMT pump, use a spirit level, a feeler
gauge and shims to level the pump. Then secure the pump by
means of suitable bolts depending on the foundation/frame.
4.2.4 Flushing the system
TM05 9339 3613TM05 9340 3613TM05 9341 3613
TM05 9334 3613TM05 9350 3613
Caution
Use vibration dampers.
Caution
To avoid impurities in the pump, flush the pipes
before you connect the pump inlet and discharge
pipes.

English (GB)
9
4.2.5 Inlet and discharge pipes (BMT and BMS hs pump)
The inlet and discharge pipes are fitted with clamp liners for
Victaulic couplings.
To ensure correct installation, follow this procedure.
The concentrate from the turbine must be able to flow freely to a
drain under all operating conditions. The minimum height above
the water level in the drain must be 300 mm. The tube from the
turbine to the drain must have the same diameter in its entire
length. The drain must be larger than the tube and open so that
the concentrate, a mixture of air and water (foam), can escape
freely.
Fig. 14 Drain from Pelton turbine
4.2.6 Pipe connection
Both the inlet and the discharge pipe must be supported close to
the end of the pipe.
Fig. 15 Horizontal and vertical support of pipes
When fitting the couplings, it is important to allow a gap of 3.5 mm
between the two pipes. See fig. 16.
Fig. 16 Position of clamp liners
Step Description Picture
1
The turbine is driven
by the high-pressure
concentrate from the
membrane.
Connect the high-
pressure outlet to the
BMT pump’s turbine
inlet.
TM05 9334 3613
2Connect the BMT
pump inlet.
TM05 9375 3613
3
Connect the BMT
pump and BMS hs
pump.
TM05 9336 3613
4
Connect the hose
(∅300) to the outlet
of the turbine housing
with a strap. Lead the
hose to a drain tank,
drain channel or a
similar drain. Fit the
end of the hose
above the highest
possible water level
in the drain. The hose
should be supported.
TM05 9337 3613
TM05 9474 5107
Caution
The concentrate outlet must be free under all
operating conditions.
Caution
If a discharge pipe is connected to the
concentrate outlet, this pipe must have an air
outlet.
TM05 9230 3613
Caution
Avoid stress in the pipe system.
TM05 9344 3613
Min. 300 mm
Min. 30°
Service connector

English (GB)
10
4.3 BMSX system
A BMSX system is built by using a BMS hs pump as high-
pressure pump and a BM hp pump as booster pump.
The pressure exchanger is installed in order to recover energy
from the high-pressure concentrate.
Fig. 17 BMSX system
4.3.1 Installation of BMS hs pump
See section 4.1 BMS hs pump.
4.3.2 Installation of BM hp pump
See the installation and operating instructions for Grundfos BM
and BM hp.
4.3.3 Pressure exchanger
Fig. 18 Pressure exchanger
Lifting and handling the pressure exchanger
Use suitable straps when lifting the unit. Carefully hoist the
pressure exchanger into place, and lower it down. Secure the
unit(s) to a frame, and ensure a stress-free installation.
4.3.4 Flushing the system
4.3.5 Pipe connection
Low-pressure and high-pressure inlet and discharge pipes are
fitted with clamp liners for Victaulic couplings. See the pipe
location on the unit.
Both the inlet and the discharge pipes must be supported close to
the end of the pipes.
Fig. 19 Horizontal and vertical support of pipes
When fitting the couplings, it is important to allow a gap of 3.5 mm
between the two pipes.
TM05 9569 4113 - TM05 9571 4113 - TM05 9570 4113 - Gr0559Gr-1015354
Warning
Observe local regulations concerning limits for
manual lifting or handling.
Warning
Make sure the crane is suitable for the job.
Use certified and approved lifting equipment.
See nameplate.
Caution
To avoid impurities in the pump, flush the pipes
before you connect the pump inlet and discharge
pipes.
TM05 9348 3613
Caution
Avoid stress in the pipe system.