Grundfos BME User manual

BME, BMET
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

Table of contents
3
BME, BMET
English (GB)
Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Dansk (DK)
Monterings- og driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Español (ES)
Instrucciones de instalación y funcionamiento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Français (FR)
Notice d'installation et de fonctionnement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
 (GR)
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Italiano (IT)
Istruzioni di installazione e funzionamento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Türkçe (TR)
Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
(AR)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Appendix 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Declaration of conformity 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

English (GB)
4
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
1. Symbols used in this document 4
2. General information 5
2.1 Pumped liquids 5
2.2 Preparation 5
3. Installation 6
3.1 Hose for turbine 6
4. Pipe connection 7
4.1 Inlet and discharge pipes 7
5. Electrical connection 7
6. Motor protection 7
6.1 Thermistor 7
6.2 Setting of motor starter 7
6.3 Generator operation 7
6.4 Monitoring of oil lubrication system 8
7. Before starting the booster module 8
8. Startup 8
8.1 BME 8
8.2 BMET 9
8.3 Operation settings 9
9. Liquid filling, venting and checking of direction of
rotation 9
10. Checking of operation 9
11. Pulleys and V-belts 10
11.1 Inspection of pulleys 10
12. Replacement of V-belts 10
13. V-belt tension 10
14. Using the tension tester 11
15. Recommended V-belt tension 12
15.1 V-belt tension, 50 Hz 12
15.2 V-belt tension, 60 Hz 13
16. Oil lubrication system 14
16.1 Oil change 14
16.2 Type of lubricating oil 14
17. Motor bearings 14
18. Shut-down procedure 15
19. Periods of inactivity 15
19.1 Preservation of pulleys and belts 15
19.2 Startup after a period of inactivity 15
19.3 Removal of preservative before restarting 15
19.4 Flushing of the modules 15
20. Frequency of starts and stops 15
21. Fault finding 16
22. Checking of motor and cable 17
23. Technical data 17
24. Disposal 17
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.
Note
Notes or instructions that make the job easier
and ensure safe operation.

English (GB)
5
2. General information
Grundfos booster modules BME and BMET are supplied from the
factory in boxes in which they should remain until they are to be
installed. The modules are ready for installation.
2.1 Pumped liquids
Thin, non-explosive liquids, not containing solid particles or
fibres. The liquid must not chemically attack the booster module
materials. In case of doubt, contact Grundfos.
We recommend that you filter the raw water to maximum 30
microns.
The booster modules must never operate with water/liquid
containing substances which would remove the surface tension,
e.g. soap. If this type of detergent is used for cleaning of the
system, the water/liquid must be led around the modules via a
bypass.
Fig. 1 BME booster module
Fig. 2 BMET booster module
2.2 Preparation
Before installation, the following checks should be made:
1. Check for transport damages
Make sure that the module has not been damaged during
transportation.
2. Type of booster module
Check that the type designation corresponds to order. See
module nameplate.
3. Power supply
The motor voltage and frequency details given on the
nameplate should be compared with the actual power supply
available.
4. V-belt
Check that the V-belt has been tightened. See section 13. V-
belt tension.
5. Lubrication
See section 17. Motor bearings.
6. Oil level
Check the oil level. See section 6.4 Monitoring of oil
lubrication system.
Note: During periods of inactivity, the oil container may be
empty. Check the oil level after 5 minutes of operation.
Warning
The booster modules must not be used for the
pumping of inflammable liquids such as diesel
oil, petrol or similar liquids.
Caution
During transportation and storage, the booster
modules must never be preserved with glycerine
or similar liquids which are aggressive to the
booster module materials.
Gr6721Gr6720

English (GB)
6
3. Installation
The booster module can be mounted directly on the floor or on a
base frame. The module is adjusted by means of the four
adjustable feet.
The inlet and discharge ports of the booster modules are shown
in figs 3and 4. Pipes are connected by means of Victaulic clamp
couplings.
The BMET booster module also has a PJE clamp coupling on the
concentrate inlet and a connection (300) for a hose for the
concentrate outlet.
3.1 Hose for turbine
On BMET systems, the hose (300) is fastened to the outlet of
the turbine housing with a strap. The hose is led to a drain tank,
drain channel or a similar drain.
The end of the hose should always be mounted above the highest
possible water level in the drain. The hose should be supported.
See fig. 4.
Fig. 3 BME booster module
Fig. 4 BMET booster module
If the module is to be fastened, the following procedure is
recommended:
Fig. 5 Concrete foundation
Fig. 6 Steel floor
The nuts must be tightened during transportation. See fig. 7.
Fig. 7 Tightened nuts
Caution
The concentrate outlet must be kept free under
all operating conditions.
Caution
If a discharge pipe is connected to the
concentrate outlet, this pipe must have an air
inlet.
TM02 6241 0103TM02 6242 0103
Discharge
Adjustable feet ± 10 mm Base frame
Inlet
Adjustable feet ± 10 mm Base frame
Inlet
Concentrate outlet
Concentrate
inlet Min.
∅450
Discharge
Note
Fasten the module with four foundation bolts.
The base frame has additional holes for this
purpose. The bolts can be secured to a concrete
foundation or welded onto a steel floor. See
figures 5and 6.
Note
Prior to startup, the nuts should be slackened.
See fig. 5concrete foundation and fig. 6steel
floor. The nuts must be counter-locked.
TM01 1061 0203TM01 1064 0203TM01 1062 0203
Base frame
Base frame
Base frame
Nuts

English (GB)
7
4. Pipe connection
4.1 Inlet and discharge pipes
The booster modules are fitted with clamp liners for Victaulic
clamp couplings on the inlet and discharge sides. Position the
clamp liners as shown in fig. 8.
Fig. 8 Positioning of clamp liners
5. Electrical connection
The electrical connection must be carried out by an authorised
electrician in accordance with local regulations and the diagrams
for the motor protection, starter and monitoring devices used. See
fig. 9. The electrical connections are made in the terminal box.
Fig. 9 Wiring diagram
The required voltage quality measured at the motor terminals is ±
5 % of the rated voltage during continuous operation.
There must be voltage symmetry, i.e. approximately same
difference of voltage between the individual phases. See section
22. Checking of motor and cable, point 1.
The motor is wound for star-delta starting.
The following starting methods can be used:
• star-delta starting
• soft starter
• frequency converter.
The maximum permissible run-up changeover time for star-delta
starting is 2 seconds for motors up to and including 90 kW and 4
seconds for motors of 110 to 160 kW.
When starting up via a soft starter or frequency converter, the
run-up time from 0 to 30 Hz should not exceed 6 seconds.
The run-out time from 30 to 0 Hz should not exceed 6 seconds.
During frequency converter operation, it is not advisable to run
the motor at a frequency higher than the rated frequency (50 or
60 Hz). See motor nameplate.
6. Motor protection
The motor must be connected to an effective motor starter (MV)
and an external amplifier relay (FR). See fig. 9. This protects the
motor against damage from voltage drop, phase failure, quick and
slow overloading and a locked rotor.
In power supply systems where undervoltage and variations in
phase symmetry may occur, a phase failure relay should be
connected. See section 22. Checking of motor and cable.
6.1 Thermistor
Before starting up the system, the thermistors must be connected
to terminals T1 and T2 on the terminal block. See fig. 9. The
thermistors protect the motor windings against thermal overload.
6.2 Setting of motor starter
For cold motors, the tripping time for the motor starter must be
less than 10 seconds at 5 times the rated current of the motor.
To ensure the best protection of the motor, the setting of the
motor starter should be carried out as follows:
1. Set the starter overload to the rated current (I1/1) of the motor.
2. Start the booster module and let it run for half an hour at
normal performance.
3. Slowly grade down the scale indicator until the motor starter
trips.
4. Increase the overload setting by 5 %, but not higher than the
rated current (I1/1).
For motors wound for star-delta starting, the starter overload unit
should be set as described above, but the maximum setting must
not exceed the following:
Starter overload setting = Rated current (I1/1) x 0.58.
6.3 Generator operation
Motor-driven generators for standard motors are often available
according to standard conditions, e.g.
• maximum height above sea level: 150 metres
• maximum air intake temperature: 30 °C
• maximum air humidity: 60 %.
Caution
Avoid any stress in the pipe system.
TM01 1066 3597
Warning
Before starting work on the booster module,
make sure that the power supply has been
switched off and that it cannot be accidentally
switched on.
The booster module must be connected to an
external mains switch.
The booster module must be earthed.
TM02 5975 4502
Pipe system Clamp liners Booster module
3.5 mm
MV
98 96
A2 T2 T1
K1
S1
KH2
95
A1 H1
3UN2 100-0 C
N
3M
K1
NL3L2L1
FR

English (GB)
8
6.4 Monitoring of oil lubrication system
The oil lubrication system is monitored by a level switch
positioned as shown in fig. 10. The electrical connection to 0-250
V (with a maximum 10 A back-up fuse) is made in the terminal
box.
Fig. 10 Oil lubrication system
7. Before starting the booster module
Check the following:
1. Oil level. See section 6.4 Monitoring of oil lubrication system.
2. Belt tension. See section 13. V-belt tension.
3. Greasing. See section 17. Motor bearings.
4. Power supply in accordance with nameplate.
5. Free movability.
Rotate the motor and pump shafts manually by means of the
V-belt.
6. Pipework according to the diagrams in figs 11 and 12.
7. Slacken the foundation bolt nuts.
8. BMET: Free discharge for the concentrate.
Connection of concentrate hose. See fig. 4.
8. Startup
We recommend that you open the discharge valve 1/4 when
starting the booster module.
8.1 BME
To start up a BME booster module, proceed as follows:
1. Start the feed pump and check that the inlet pressure of the
booster module is higher than 1.0 bar (10 metres head) and
lower than 30.0 bar (300 metres head).
2. Vent the booster module. See section 9. Liquid filling, venting
and checking of direction of rotation.
3. Start the high-pressure pump.
Check that the oil level in the oil container stabilises between
minimum and maximum.
4. Check the direction of rotation as described in section
9. Liquid filling, venting and checking of direction of rotation.
5. Set the discharge pressure of the booster module to the
desired value.
6. Check that the inlet pressure of the booster module is higher
than 1.0 bar (10 metres head) and lower than 30.0 bar (300
metres head).
The booster module is now ready for operation.
Fig. 11 BME booster system
Note
During periods of inactivity, the oil container may
be empty. Check the oil level after 5 minutes of
operation. If necessary, refill the oil container.
TM01 1411 4497
Level switch
Max. oil level
Min. oil level
Terminal box
TM01 1084 3697
Air escape valve
High-pressure switch
RO filter
Permeate
High-pressure pump
Low-pressure
switch
Feed pump
Raw-water
supply
Pressure
regulating
valve
Concentrate
(brine)

English (GB)
9
8.2 BMET
Sound pressure level: Up to 105 dB(A)
To start up a BMET booster module, proceed as follows:
1. Start the feed pump and check that the inlet pressure of the
booster module is higher than 2.0 bar (20 metres head) and
lower than 5.0 bar (50 metres head).
2. Vent the booster module. See section 9. Liquid filling, venting
and checking of direction of rotation.
The module is fully vented when liquid runs out of the air
escape valve.
3. Start the high-pressure pump.
Check that the oil level in the oil container stabilises between
minimum and maximum.
4. Check the direction of rotation as described in section
9. Liquid filling, venting and checking of direction of rotation.
5. Set the discharge pressure of the booster module to the
desired value.
6. Check that the inlet pressure of the booster module is higher
than 2.0 bar (20 metres head) and lower than 5.0 bar (50
metres head).
The booster module is now ready for operation.
Fig. 12 BMET booster system
8.3 Operation settings
The flow and discharge pressure of the booster module should
always be kept within the ranges for which it was originally
designed. See "Technical specification" supplied with the system.
If the system requires flows and pressures outside the design
range, changes are possible. Please contact Grundfos.
9. Liquid filling, venting and checking of
direction of rotation
Procedure:
1. Open the valve on the inlet side of the module. The module is
normally primed by the pressure from the feed pump.
2. Open the air escape valve on the discharge side of the
module.
3. Continue the filling procedure until water runs out of the air
escape valve. See figures 11 and 12.
4. If the system is fitted with an isolating valve on the discharge
side of the high-pressure pump, open this valve approx. 1/4.
5. Start the module (for 1 sec. only) and check the direction of
rotation. The correct direction of rotation is indicated on the
cover of the V-belt screen. If necessary, interchange two
phases to the motor.
The direction of rotation of the turbine-driven pump is always
correct.
10. Checking of operation
Check the following at suitable intervals:
• Flow and pressure.
• Current consumption.
• Lubricating oil level.
• Whether the oil container contains water (the lubricating oil
should be changed every 2,000 operating hours or every 6
months, whichever comes first).
• Whether the motor ball bearings are being greased (check that
excessive grease can escape through the drain hole in
bearing cover).
• Whether the bearings are worn.
• Whether the V-belts are tightened correctly.
Check every 6 months. See section 13. V-belt tension.
• Whether the shaft seal is leaky.
The drain hole underneath the pulley must be free from
deposits. Flush with clean fresh water, if required.
The shaft seal is lubricated by the pumped liquid. Small
quantities of liquid are therefore drained via the drain hole.
• Whether the noise level has changed.
We recommend that you write the operating data into the log
book supplied with the system. These data can be useful for
maintenance purpose.
Warning
The sound pressure level is so high that hearing
protection must be used.
TM01 1085 3697
High-pressure switch
Air escape valve RO filter
High-pressure pump
Turbine pump
Low-pressure
switch
Feed pump
Raw-water
supply
Permeate
Turbine
Concentrate
(brine)

English (GB)
10
11. Pulleys and V-belts
11.1 Inspection of pulleys
Inspect the pulley grooves for wear. See fig. 13. Belt life will be
reduced if the grooves are worn.
Fig. 13 Examples of new and worn pulley grooves
Use, for instance, pulley gauges to determine whether the
grooves are worn. See fig. 14.
The motor pulley groove is 38 ° and the pump pulley groove is
34 °.
Fig. 14 Use of pulley gauges
A torch may be useful when inspecting the grooves. Do not be
misled by shiny grooves. Grooves that are shiny are often
polished because of heavy wear. Inspect the pulley grooves for
corrosion or pitting. If corroded or pitted surfaces are found, the
pulley should be replaced.
Checking and correcting pulley alignment
Misaligned pulleys will accelerate wear of belts and pulley
grooves.
Check the alignment by placing a steel straightedge across the
pulley faces so that it touches all four contact points. See fig. 15.
Correct the alignment, if required.
Fig. 15 Correct alignment
12. Replacement of V-belts
Procedure:
1. Remove oil and impurities from the pulley grooves.
2. Place the V-belts loosely in the pulley grooves without using
force or tools of any kind.
3. Adjust the V-belt tension to the value stated in section
15. Recommended V-belt tension.
13. V-belt tension
Correct belt tension is decisive for long and trouble-free operation
of the transmission unit.
This section refers to section 15. Recommended V-belt tension.
1. Move the motor towards or away from the pump until the
correct tension has been obtained, i.e. between Tmin.-Tmax..
2. Rotate the motor and pump shafts a few times by means of
the V-belt before checking the Tmin.-Tmax. value.
3. Adjust the V-belt tension to the value stated.
4. Check the V-belt tension after 1 to 4 hours of operation at full
load.
5. Adjust the V-belt tension to the value stated.
6. The belt tension should be checked regularly according to the
recommended values.
The belt tension can be measured through a hole in the protective
guard.
V-belts and pulleys must be checked every 6 months.
We recommend that you replace the V-belts once a year.
TM03 4742 2706TM03 5330 3306
Caution
Worn pulleys must be replaced to ensure trouble-
free operation.
TM03 5831 4006
Worn V-belt and pulley groove
Wear
New V-belt and pulley groove
Pulley gauges
Caution
All V-belts must be replaced by new belts.

English (GB)
11
14. Using the tension tester
The tension tester supplied with the BME and BMET should be
used as described below.
The use of the tension tester is illustrated in figs 16, 17 and 18.
The position numbers in this section refer to fig. 16.
1. Rotate the motor and pump shafts a few times before
checking the belt tension.
2. Reset the pointer, pos. 1, and place the tension tester on the
belt between the pulleys, pos. 4.
3. Use only one finger to operate the tension tester, pos. 2.
4. Gently press the tension tester until a "click" indicates that the
tester has been activated.
5. Remove the tester from the belt and read the tension
measured, pos. 3.
6. Adjust the V-belt tension to the value stated in section
15. Recommended V-belt tension.
Fig. 16 Tension tester
Fig. 17 Using the tension tester
Fig. 18 Reading the tension tester
Caution
Rotate the motor and pump shafts after each
tension adjustment.
TM03 4749 2606
1
2
3
4
TM03 8109 0107TM03 8110 0107

English (GB)
12
15. Recommended V-belt tension
15.1 V-belt tension, 50 Hz
The table below shows the recommended tension of V-belts for BME and BMET:
* V-belt tension within the first hour of operation.
** V-belt tension after more than one hour of operation.
V-belt tension, 50 Hz
Diameter of
pulley
[mm] Number
of V-belts
Belt
length
V-belt tension
[N]
Diameter of
pulley
[mm] Number
of V-belts
Belt
length
V-belt tension
[N]
Motor Pump [mm] New belts*
Tmin.-Tmax.
Check**
Tmin.-Tmax. Motor Pump [mm] New belts*
Tmin.-Tmax.
Check**
Tmin.-Tmax.
160 kW, 50 Hz, 400 V, 2976 min-1 55 kW, 50 Hz, 400 V, 2960 min-1
300
150 9
1650 900-1000 650-700 300
150 4
1500 800-900 600-700280 1600
800-900
280
265
600-700
265
1400 700-800
250
1550
250
500-600
236 236
224 224
132 kW, 50 Hz, 400 V, 2977 min-1 212
1320 600-700
300
150 8
1650 850-900 650-700 200
280 1600 800-900
600-700
190
265 45 kW, 50 Hz, 400 V, 2970 min-1
250
1550
300
150 3
1500 800-900
600-700
236
700-800
280
1400224 265
700-800
212 1500 250
110 kW, 50 Hz, 400 V, 2979 min-1 236
1320
300
150
6
1650 900-1000 700-800 224
500-600
280 1600 800-900 650-700 212
265 200 1250
250
1550
190
236
8 700-800
37 kW, 50 Hz, 400 V, 2955 min-1
224 500-600 300
150 3
1400 800-900 600-700
212 1500 280
90 kW, 50 Hz, 400 V, 2970 min-1 265
1320 700-800
300
150 6
1550 800-900
600-700
250
500-600
280 236
265
1500
700-800
224
1250 600-700
250 212
236
500-600
200 400-500
224 1450 190
212 30 kW, 50 Hz, 400 V, 2955 min-1
200 1400 300
150 2
1400 800-900
600-700
190 280
700-800
75 kW, 50 Hz, 400 V, 2974 min-1 265
1320
300
150 5
1550 800-900
600-700
250
280 236
500-600
265
1500
700-800
224
1250
250 212
236
500-600
200
224 1450 190
212
200 1400
190

English (GB)
13
15.2 V-belt tension, 60 Hz
The table below shows the recommended tension of V-belts for BME and BMET:
* V-belt tension within the first hour of operation.
** V-belt tension after more than one hour of operation.
V-belt tension, 60 Hz
Diameter of
pulley
[mm] Number
of V-belts
Belt
length
V-belt tension
[N]
Diameter of
pulley
[mm] Number
of V-belts
Belt
length
V-belt tension
[N]
Motor Pump [mm] New belts*
Tmin.-Tmax.
Check**
Tmin.-Tmax. Motor Pump [mm] New belts*
Tmin.-Tmax.
Check**
Tmin.-Tmax.
150 kW, 60 Hz, 440 V, 3572 min-1 52 kW, 60 Hz, 440 V, 3564 min-1
250
150 9 1550 850-900
650-700
250
150 4
1400
800-900
600-700
236 800-900 236
1320
224 1500 224
125 kW, 60 Hz, 440 V, 3575 min-1 212
250
150 8
1550 850-900 650-700 200
1250 700-800 236
800-900
600-700
190
224
1500
180 5 600-700 500-600
212 43 kW, 60 Hz, 440 V, 3546 min-1
200
700-800
250
150 3
1320 800-900
600-700
190 1450 236
180 224
1250 700-800
103 kW, 60 Hz, 440 V, 3564 min-1 212
250
150
61500 900-1000 700-800 200
236
1450
800-900 650-700 190 500-600
224
8
700-800
35 kW, 60 Hz, 440 V, 3546 min-1
212
500-600
250
150
2 1320 900-1000 700-800
200
1400
236 800-900 600-700
190 600-700 224
3 1250
700-800
180 212
500-60086 kW, 60 Hz, 440 V, 3568 min-1 200 600-700
250
150
51500 800-900 650-700 190
236
1450 600-700 224
6 700-800
212
500-600
200
1400190
180
63 kW, 60 Hz, 440 V, 3568 min-1
250
150 4
1450
800-900
600-700
236 1400
224
212
1320
200 700-800
190
180 5 600-700 500-600

English (GB)
14
16. Oil lubrication system
The BME and BMET booster modules have an oil lubrication
system for the two ball bearings in the pulley head.
During operation, there must be a continuous flow of oil to the oil
container. Check the flow by looking into the container, see fig.
19.
Fig. 19 Oil lubrication system
16.1 Oil change
The hydraulic oil should be changed every 2000 operating hours
or every 6 months, whichever comes first. Total quantity of oil:
Approx. 1.5 litres.
During operation, the oil must be changed as follows:
1. Switch off the level switch in the oil container or establish a
time delay of approx. 10 minutes.
2. Open the drain valve. See fig. 19. Oil will now run out of the oil
drain pipe.
3. Close the drain valve when the oil container is almost empty.
4. Fill in new oil up to the maximum level mark on the oil
container.
5. Open the drain valve.
6. Close the drain valve when the oil container is almost empty.
7. Fill in oil up to the maximum level mark on the oil container.
8. Open the drain valve.
9. Close the drain valve when the oil container is almost empty.
10. Fill in oil up to the maximum level mark on the oil container.
Approx. 1.5 litres of hydraulic oil has now been filled into the
container.
11. Check the oil level after 1 to 2 hours of operation and refill, if
required.
The oil has now been changed.
If the oil lubrication system has been dismantled during
repair, the system must be filled as follows:
1. Check that the drain valve is closed. See fig. 19.
2. Fill new oil into the oil container, approx. 0.5 litres, and wait
approx. 10 minutes until the oil level has fallen.
3. Fill in oil up to the maximum level mark on the oil container.
4. Start up the booster module.
The oil level in the oil container will now fall.
5. During operation, fill in oil up to the maximum level mark on
the oil container.
6. Check the oil level after 1 to 2 hours of operation and refill, if
required.
During operation, the oil level in the container must lie
between the minimum and maximum marks.
During inactivity, the oil level in the container may fall below
the minimum mark.
The oil lubrication system is now filled with oil.
16.2 Type of lubricating oil
The oil system is factory-filled with hydraulic oil, type Mobil DTE
24.
Other types of hydraulic oil with a viscosity of 32 can be used.
17. Motor bearings
Under optimum operating conditions, the operating life of the
motor ball bearings is approx. 20,000 operating hours. After that
period, the bearings must be replaced. The new ball bearings
must be filled with grease.
BME and BMET booster modules are factory-fitted with a manual
motor bearing greasing system. For greasing intervals, etc., see
motor nameplate or the installation and operating instructions
supplied with the motor.
TM01 1410 4497
Terminal box
Oil container
Max. oil level
Min. oil level
Pulley head
Oil cooler
Drain valve Oil drain pipe

English (GB)
15
18. Shut-down procedure
See section 19. Periods of inactivity for precautions to be taken
when shutting down the system. These precautions must be
taken to protect the system and ensure long life of all the system
components.
Procedure
See fig. 11 or 12.
1. Stop the BME pump (high-pressure pump).
2. Wait for 5 seconds to ensure water supply while the BME
pump is being shut down.
3. Stop the feed pump.
19. Periods of inactivity
In the case of periods of inactivity, various precautions must be
taken to protect the system.
The precautions to be taken if the system is to be inactive for a
certain period appear in the table:
* Use the same solution that is used to preserve the
membranes.
19.1 Preservation of pulleys and belts
When the belts have been removed, lubricate the pulleys with an
anti-corrosive lubricating oil.
The belts must be kept at a temperature not exceeding 30 °C and
at a relative air humidity not exceeding 70 %.
The belts must not be exposed to direct sunlight.
19.2 Startup after a period of inactivity
The precautions to be taken if the system has been inactive for a
certain period appear in the table:
19.3 Removal of preservative before restarting
Before restarting the system, remove the preservative with a
suitable solvent. The pulleys must be completely free from oil
before the belt is refitted.
19.4 Flushing of the modules
The booster pumps must be stopped while the system is flushed.
The booster modules can be flushed through in or against the
flow direction. See fig. 20 or 21.
Flush the system through with fresh water for approx. 10 minutes
or until the salinity is below 500 ppm. The pressure during
flushing must be minimum 2 bar. The flushing must be continued
until the modules are completely filled with clean fresh water.
Fig. 20 BME booster module - flow direction when flushing
Fig. 21 BMET booster module - flow direction when flushing
20. Frequency of starts and stops
Minimum 1 per year is recommended.
Maximum 5 per hour.
Maximum 20 per day.
Action
30 minutes 1 month 3 months 6 months
Flushing. See section
19.4 Flushing of the modules xxxx
Fill the modules with fresh water x x x x
Preserve the pump* x x x
Slacken and remove the V-belts.
Preserve the pulleys against
corrosion. See section
19.1 Preservation of pulleys and
belts
xxx
Rotate pump and motor shafts
manually once a month xx
Caution
The normal stop procedure must be followed
step by step.
Action
1 month 3 months 6 months
Remove preservative from the pulleys.
See section 19.3 Removal of
preservative before restarting
xxx
Check the V-belts x x x
Mount the V-belts and adjust the tension
according to the values in section
15. Recommended V-belt tension
xxx
Caution
The normal startup procedure must be followed
step by step. For greasing of motor bearings, see
section 17. Motor bearings.
Caution
If the flushing takes more than 10 minutes, the
flow must be reduced to maximum 10 % of the
rated flow.
Caution
The booster modules must be filled with clean
fresh water during periods of inactivity.
Caution
To flush the pulley head of the BME pump, start
the pump for 30 seconds to allow the fresh water
to enter into the pulley head.
Caution
The distributing pipe for nozzles must also be
flushed through.
TM01 1386 0403TM01 1387 0403

English (GB)
16
21. Fault finding
Warning
Before starting work on the booster module, make sure that the power supply has been switched off and that it
cannot be accidentally switched on.
Fault Possible cause Remedy
1. The booster module
starts/stops
occasionally during
operation.
a) No water supply.
The low-pressure switch has cut out.
Check that the low-pressure switch functions normally
and is adjusted correctly. Check that the minimum inlet
pressure is correct. If not, check the feed pump. See
section 8. Startup.
b) The lubricating oil level is too low. Check that the oil level switch functions normally. If it is
OK, check the oil system for leakage. See section
16. Oil lubrication system.
2. The booster module
stops during operation.
a) The fuses are blown. After a cut-out, the cause of a possible short-circuit
must be found.
If the fuses are blown, check whether the motor starter
has been set correctly or is faulty.
If the fuses are hot when they are replaced, check that
the load of the individual phases does not exceed the
motor current during operation. Identify the cause of the
load.
If the fuses are not hot immediately after the cut-out, the
cause of a possible short-circuit must be identified.
Possible fuses in the control circuit must be checked
and defective fuses must be replaced.
b) The motor starter overload unit has tripped. Reset the starter overload. See also sections
5. Electrical connection, 6. Motor protection and
7. Before starting the booster module.
c) The magnetic coil of motor starter/contactor
is defective (not cutting in). Replace the coil. Check the coil voltage.
d) The control circuit has cut out or is defective. Check the control circuit and the contacts in the
monitoring devices (low-pressure switch, flow switch,
etc.).
e) The motor/supply cable is defective. Check motor and cable. See section 6.2 Setting of
motor starter.
3. The booster module
runs, but gives no
water or develops any
pressure.
a) No or insufficient water supply at the module
inlet.
Check that the inlet pressure during operation is at least
1 bar for BME and 2 bar for BMET. See sections
8.1 BME and 8.2 BMET.
Restart the booster module as described in section
8. Startup.
Check the function of the feed pump.
b) The piping system, pump or nozzle is
choked up. Check the piping system, pump and nozzle.
c) The pre-filter is choked up. Clean the pre-filter.
4. The booster module
runs at reduced
capacity.
a) Wrong direction of rotation. See section 9. Liquid filling, venting and checking of
direction of rotation.
b) The valves on the discharge side are partly
closed or blocked. Check the valves.
c) The discharge pipe is partly blocked by
impurities.
Clean or replace the discharge pipe. Measure the
discharge pressure and compare the value with the
calculated data. See "Technical specification", supplied
with the system.
d) The pump is partly blocked by impurities. Pull the pump out of the sleeve. Dismantle, clean and
check the pump and module. Replace any defective
parts.
e) The pump is defective. Pull the pump out of the sleeve. Dismantle, clean and
check the pump and module. Replace any defective
parts.
f) The pre-filter is choked up. Clean the pre-filter.

English (GB)
17
22. Checking of motor and cable
23. Technical data
See motor and module nameplates.
24. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Subject to alterations.
1. Supply voltage
TM00 1371 3597
Measure the voltage between the phases with
a voltmeter.
Connect the voltmeter to the terminals in the
motor starter.
The voltage should, when the motor is loaded, be
within ± 5 % of the rated voltage. The motor may burn
if there are larger variations in voltage.
If the voltage is constantly too high or too low, the
motor must be replaced by one corresponding to the
supply voltage.
Large variations in the supply voltage indicate poor
power supply, and the module should be stopped until
the defect has been found.
Resetting of the motor starter may be necessary.
2. Current consumption
TM00 1372 3597
Measure the current of each phase while the
module is operating at a constant discharge
pressure (if possible at the capacity where the
motor is most heavily loaded).
For normal operating current, see the
"Technical specification".
The difference between the current of the phase with
the highest amp consumption and the one with the
lowest amp consumption must not exceed 10 % of the
lowest amp consumption.
If so, or if the current exceeds the full-load current,
check these possible faults:
• A damaged pump is causing the motor to be
overloaded. Pull the pump out of the sleeve for
overhaul.
• The motor windings are short-circuited or partly
disjointed.
• Too high or too low supply voltage.
• Poor connection in leads. Weak cables.
Points 3 and 4: Measurement not needed if supply voltage and current consumption are normal.
3. Winding resistance
TM00 1373 3597
Remove the phase leads from the terminal
box.
Measure the winding resistance as shown on
the drawing.
The highest value must not exceed the lowest value by
more than 5 %.
If the deviation is higher, and the supply cable is OK,
the motor should be overhauled.
4. Insulation resistance
TM00 1374 3597
Remove the phase leads from the terminal
box.
Measure the insulation resistance from each
phase to earth (frame).
(Make sure that the earth connection is made
carefully.)
The insulation resistance for a new, cleaned or
repaired motor must be approx. 10 MΩmeasured to
earth.
For a given motor the critical insulation resistance
(Rcrit) can be calculated as follows:
Rcrit = UN[kV] x 0.5 [MΩ/kV].
If the measured insulation resistance is lower than
Rcrit, the motor must be overhauled.

Deutsch (DE)
18
Deutsch (DE) Montage- und Betriebsanleitung
Übersetzung des englischen Originaldokuments.
INHALTSVERZEICHNIS
Seite
1. Verwendete Symbole
1. Verwendete Symbole 18
2. Allgemeines 19
2.1 Fördermedien 19
2.2 Montagevorbereitung 19
3. Montage 20
3.1 Abflussschlauch für die Turbine 20
4. Rohrleitungsanschlüsse 21
4.1 Zulauf- und Druckanschlüsse 21
5. Elektrischer Anschluss 21
6. Motorschutz 21
6.1 Thermistor 21
6.2 Einstellung des Motorschutzschalters (Überstromaus-
löser) 21
6.3 Generatorbetrieb 21
6.4 Überwachung des Schmierölsystems 22
7. Vor der Inbetriebnahme des Druckmoduls 22
8. Inbetriebnahme 22
8.1 BME 22
8.2 BMET 23
8.3 Betriebsgrenzen 23
9. Füllen, Entlüften und Drehrichtungsprüfung 23
10. Betriebswerteprüfung 23
11. Riemenscheiben und Keilriemen 24
11.1 Riemenscheiben überprüfen 24
12. Keilriemen austauschen 24
13. Keilriemenspannung 24
14. Verwenden des Prüfgerätes 25
15. Empfohlene Keilriemenspannung 26
15.1 Keilriemenspannung, 50 Hz 26
15.2 Keilriemenspannung, 60 Hz 27
16. Schmierölsystem 28
16.1 Ölwechsel 28
16.2 Schmieröltyp 28
17. Motorlager 28
18. Außerbetriebnahme 29
19. Stillstandszeiten 29
19.1 Riemenscheiben und Keilriemen konservieren 29
19.2 Wiederinbetriebnahme nach längerem Stillstand 29
19.3 Entfernen der Konservierung vor der Wiederinbetrieb-
nahme 29
19.4 Spülen der Druckmodule 29
20. Schalthäufigkeit 29
21. Störungsübersicht 30
22. Motor- und Kabelkontrolle 31
23. Technische Daten 31
24. Entsorgung 31
Warnung
Lesen Sie diese Montage- und Betriebsanleitung vor
der Montage. Montage und Betrieb müssen nach den
örtlichen Vorschriften und den anerkannten Regeln
der Technik erfolgen.
Warnung
Die in dieser Montage- und Betriebsanleitung
enthaltenen Sicherheitshinweise, die bei Nicht-
beachtung Gefährdungen für Personen hervorrufen
können, sind mit dem allgemeinen
Gefahrensymbol "Sicherheitszeichen nach
DIN 4844-W00" besonders gekennzeichnet.
Achtung
Dieses Symbol finden Sie bei Sicherheitshinweisen,
deren Nichtbeachtung Gefahren für die Maschine
und deren Funktionen hervorrufen kann.
Hinweis
Hier stehen Ratschläge oder Hinweise, die das
Arbeiten erleichtern und für einen sicheren Betrieb
sorgen.

Deutsch (DE)
19
2. Allgemeines
Grundfos Druckmodule BME und BMET werden installationsfertig
in Kisten geliefert, in denen sie bis zur Montage verbleiben soll-
ten.
2.1 Fördermedien
Dünnflüssige, nicht-explosive Medien ohne feste oder langfase-
rige Bestandteile. Das Fördermedium darf die Werkstoffe des
Moduls nicht chemisch angreifen. In Zweifelsfällen nehmen Sie
bitte Verbindung mit Grundfos auf.
Es empfiehlt sich, das Rohwasser bis auf max. 30 Mikron zu filt-
rieren.
Die Druckmodule dürfen nie mit Medien betrieben werden, die
Stoffe enthalten, durch die die Oberflächenspannung des Medi-
ums entfernt werden könnte, z.B. Seife. Bei der Verwendung sol-
cher Mittel, z.B. für die Reinigung der Anlage, muss das Medium
über eine Umlaufleitung um das Modul herumgeführt werden.
Abb. 1 Druckmodul BME
Abb. 2 Druckmodul BMET
2.2 Montagevorbereitung
Vor der Montage sind folgende Punkte zu prüfen:
1. Transportschäden
Das Druckmodul auf Transportschäden prüfen.
2. Druckmodultyp
Prüfen, ob die Typenbezeichnung mit der des Auftrages über-
einstimmt, siehe Leistungsschild des Moduls.
3. Versorgungsspannung
Prüfen, ob die auf dem Leistungsschild angegebenen elektri-
schen Daten mit denen der bauseits vorhandenen Stromver-
sorgung übereinstimmen.
4. Keilriemen
Prüfen, ob der Keilriemen korrekt gespannt ist, siehe
Abschnitt 13. Keilriemenspannung.
5. Fettschmierung
Siehe Abschnitt 17. Motorlager.
6. Schmierölstand
Schmierölstand prüfen, siehe Abschnitt 6.4 Überwachung des
Schmierölsystems.
Warnung
Die Druckmodule dürfen nicht zur Förderung von feu-
ergefährlichen Medien wie z.B. Dieselöl und Benzin
eingesetzt werden.
Achtung
Während des Transports und der Lagerung dürfen
die Module nicht mit Glyzerin oder ähnlichen Medien
behandelt werden. Diese Medien greifen die Werk-
stoffe des Moduls chemisch an.
Gr6721Gr6720
Hinweis
Bei Stillstand kann der Ölbehälter leer sein. Schmier-
ölstand nach 5 Minuten Betrieb prüfen.

Deutsch (DE)
20
3. Montage
Das Druckmodul kann direkt auf dem Boden aufgestellt oder auf
einem Grundrahmen montiert werden. Das Modul ist durch die
vier verstellbaren Füße auszurichten.
Die Zulauf- und Druckstutzen der Module gehen aus den Abbil-
dungen 3und 4hervor. Die Rohrleitungen werden durch Victau-
lic-Schalenkupplungen verbunden.
Das Druckmodul BMET hat auch an dem Konzentratzulauf einen
PJE-Anschluss. Der Konzentrataustritt ist für den Anschluss
eines Schlauches (300 mm) vorbereitet.
3.1 Abflussschlauch für die Turbine
Bei BMET Anlagen wird der Schlauch (300 mm) für den Kon-
zentratablauf mit Schlauchband am Turbinengehäuse befestigt.
Das Konzentrat wird dann in einen Sammelbehälter, Abflusskanal
oder anderen Abfluss geleitet.
Das Schlauchende muss sich immer über dem höchsten Wasser-
stand befinden. Der Schlauch muss bauseits abgefangen wer-
den, siehe Abb. 4.
Abb. 3 Druckmodul BME
Abb. 4 Druckmodul BMET
Falls das Druckmodul befestigt werden soll, ist folgende Vorge-
hensweise zu beachten:
Abb. 5 Betonfundament
Abb. 6 Stahlboden
Die Muttern müssen während des Transports fest angezogen
sein, siehe Abb. 7.
Abb. 7 Muttern angezogen
Achtung
Unabhängig von den Betriebsbedingungen darf der
Konzentratablauf nie verhindert werden.
Achtung
Falls eine Druckleitung an den Konzentrataustritt
angeschlossen wird, muss diese Leitung mit einem
Lufteintritt versehen sein.
TM02 6241 0103TM02 6242 0103
Zulauf
Druck-
stutzen
Justierfüße ± 10 mm Grundrahmen
Min.
450
Zulauf
Konzentrat-
zulauf
Druck-
stutzen
Konzentrataustritt
Justierfüße ± 10 mm Grundrahmen
Hinweis
Das Modul ist mit vier Fundamentbolzen zu befesti-
gen. Dazu sind im Grundrahmen Bohrungen vorhan-
den. Die Bolzen können sowohl im Betonfundament
befestigt als auch auf einem Stahlboden ange-
schweißt werden, siehe Abb. 5und 6.
Hinweis
Vor der Inbetriebnahme des Druckmoduls müssen
die Muttern der Fundamentbolzen gelöst werden,
siehe Abb. 5Betonfundament und Abb. 6Stahlbo-
den. Die Muttern müssen gekontert werden.
TM01 1061 0203TM01 1064 0203TM01 1062 0203
Grundrahmen
Grundrahmen
Grundrahmen
Muttern