Grundfos CRK Series User manual

CRK, MTR
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

3
Table of contents
CRK, MTR
English (GB)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Български (BG)
Упътване за монтаж иексплоатация. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Čeština (CZ)
Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Dansk (DK)
Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Eesti (EE)
Paigaldus- ja kasutusjuhend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Español (ES)
Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 85
Suomi (FI)
Asennus- ja käyttöohjeet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Français (FR)
Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Hrvatski (HR)
Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Magyar (HU)
Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Italiano (IT)
Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Lietuviškai (LT)
Įrengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Latviešu (LV)
Uzstādīšanas un ekspluatācijas instrukcija. . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Nederlands (NL)
Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Polski (PL)
Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Português (PT)
Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Table of contents
4
CRK, MTR
Română (RO)
Instrucţiuni de instalare şi utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Srpski (RS)
Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Svenska (SE)
Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Slovensko (SI)
Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Slovenčina (SK)
Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Türkçe (TR)
Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Українська (UA)
Інструкції змонтажу та експлуатації . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
中文 (CN)
安装和使用说明书 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
日本語 (JP)
取扱説明書 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .348
한국어 (KO)
설치 및 작동 지침 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .361
Bosanski (BS)
Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
繁體中文 (TW)
安裝操作手冊 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402
Руководство по эксплуатации ЕАС . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

English (GB)
5
English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions
describe Grundfos CRK and MTR pumps.
Sections 1-4 give the information necessary to be
able to unpack, install and start up the product in a
safe way.
Sections 5-11 give important information about the
product, as well as information on service, fault
finding and disposal of the product.
CONTENTS
Page
1. General information
1.1 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
The hazard statements are structured in the
following way:
1. General information 5
1.1 Hazard statements 5
1.2 Notes 6
2. Receiving the product 6
2.1 Lifting the product 6
3. Installing the product 7
3.1 Mechanical installation 7
3.2 Pump location 7
3.3 Electrical connection 8
4. Starting up the product 9
4.1 Before starting the product 9
4.2 Starting the product 9
5. Product introduction 10
5.1 Applications 10
5.2 Pumped liquids 10
5.3 Identification 10
6. Technical data 12
6.1 Ambient temperature 12
6.2 Maximum permissible operating pressure
and liquid temperature for the shaft seal 12
6.3 Minimum flow rate 13
6.4 Electrical data 13
6.5 Maximum number of starts 13
7. Sound pressure level 13
8. Servicing the product 14
8.1 Maintaining the product 14
8.2 Filters 15
8.3 Periodic checks 15
8.4 Coupling adjustment 15
8.5 Contaminated products 15
8.6 Service documentation 15
9. Taking the product out of operation 15
9.1 Taking the product permanently out of
operation 15
10. Fault finding the product 16
11. Disposing of the product 17
Read this document before installing the
product. Installation and operation must
comply with local regulations and accepted
codes of good practice.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or
moderate personal injury.
SIGNAL WORD
Description of hazard
• Consequence of ignoring the warning.
• Action to avoid the hazard.

English (GB)
6
1.2 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
2. Receiving the product
2.1 Lifting the product
When lifting the entire product with motor, follow
these instructions:
• Pump with motor sizes 0.37 - 5.5 kW:
Lift the pump in the motor flange by means of
straps or the like.
• Pump with motor sizes 7.5 - 22 kW:
Lift the pump by means of the motor eyebolts.
• Pump with motor sizes 30-45 kW:
Lift the pump by means of the lifting brackets on
the motor flange.
Fig. 1 Lifting points
In case of pumps with other motors than MG or
Siemens, we recommend that you lift the pump by
means of the straps in the motor flange.
Observe these instructions for explosion-
proof products.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.
0.37 - 5.5 kW 7.5 - 22 kW
TM04 0339 0608 TM04 0341 0608
30-45 kW 55-75 kW
TM05 9564 4113

English (GB)
7
3. Installing the product
3.1 Mechanical installation
3.2 Pump location
The pump is designed for tank mounting in vertical
and horizontal position. However, only MTR version
H and MTRE version H are suitable for horizontal
mounting.
The pump is positioned in a hole cut into the tank
and is secured to the tank by four hexagon head
screws through the holes in the mounting flange.
Fig. 2 Vertical and horizontal installation
On horizontally installed MTR, MTRE pumps with
motors from 5.5 kW and up the motors have feet and
must be supported.
Fig. 3 Horizontally installed MTR with foot
Fig. 4 Vertical installation
Mounting flange dimensions:
WARNING
Moving parts
Death or serious personal injury
• Tighten the coupling screws to the
correct torque.
• Install the coupling guards securely to
the pump with the screws intended for
this purpose.
CAUTION
Hot surface
Minor or moderate personal injury
• The pump must be installed so that
persons cannot accidentally come into
contact with the hot surface of the
motor.
TM01 4990 1399TM04 5755 3809
For horizontally mounted pumps ensure a
sufficient sealing between pump flange
and tank. A sealing gasket will usually
suffice.
Before changing shaft seals for
horizontally mounted pumps, drain the
tank.
Vertical Horizontal
MTR 32, 45 and 64 pumps can only be
installed in vertical position.
TM02 8042 4503
Pump type D1 D2 D3 L C X
CRK 2, 4 140 160 180 100 Rp 1 1/4
G 1 1/4 ∅7.5
MTR 1s, 1,
3, 5, 8 140 160 180 100 Rp 1 1/4 G 1 1/4 ∅9.5
MTR 10,
15, 20 200 225 250 125 Rp 2 G 2 ∅9
MTR 32 190 220 250 150 DN 65 ∅12
MTR 45,
64 240 265 290 165 DN 80 ∅12
D1
D2
D3
4 x X
C
L

English (GB)
8
3.2.1 Inlet conditions
The bottom of the pump strainer must be at least 25
mm above the bottom of the tank.
The pumps are designed to provide full performance
down to a level of A mm above the bottom of the
strainer.
At a liquid level between A and B mm above the
bottom of the strainer, the built-in priming screw will
protect the pump against dry running.
MTR 32, 45 and 64 pumps have no priming screw.
Fig. 5 CRK 2, 4 and MTR 1s, 1, 3, 5, 8
Fig. 6 MTR 10, 15, 20
Fig. 7 MTR 32, 45, 64
3.3 Electrical connection
The electrical connection must be carried out by an
authorized electrician in accordance with local
regulations.
The electrical connection must be carried out as
shown in the wiring diagram inside the terminal box
cover.
The operating voltage and frequency are marked on
the pump nameplate. Please make sure that the
motor is suitable for the power supply on which it will
be used.
Single-phase Grundfos motors incorporate a thermal
switch and require no additional motor protection.
Pump type A [mm] B [mm]
CRK 2, 4 and MTR 1s, 1, 3, 5 41 28
MTR 10, 15, 20 50 25
MTR 32, 45, 64 70 -
TM07 2800 4118TM05 7224 0813
A
B
25 mm
B
A
25 mm
TM05 7225 0813
WARNING
Electric shock
Death or serious personal injury
• Before starting any work on the
product, make sure that the power
supply has been switched off and that
it cannot be accidentally switched on.
• Connect the pump to an external main
switch close to the pump and to a
motor-protective circuit breaker or a
CUE frequency converter. Make sure
that you can lock the main switch in
OFF position (isolated). Type and
requirements as specified in EN
60204-1, 5.3.2.
A
25 mm

English (GB)
9
Three-phase motors must be connected to a motor-
protective circuit breaker.
The terminal box can be turned to four positions, in
90 ° steps. See fig. 8.
1. If necessary, remove the coupling guards. Do not
remove the coupling.
2. Remove the bolts securing the motor to the
pump.
3. Turn the motor to the required position.
4. Replace and tighten the bolts.
5. Replace the coupling guards.
Fig. 8 Terminal box positions
3.3.1 Frequency converter operation
Motors supplied by Grundfos
All three-phase motors supplied by Grundfos can be
connected to a frequency converter.
Depending on the frequency converter type, this may
cause increased acoustic noise from the motor.
Furthermore, it may cause the motor to be exposed
to detrimental voltage peaks.
We recommend to protect all other motors against
voltage peaks higher than 850 V.
The above disturbances, i.e. both increased acoustic
noise and detrimental voltage peaks, can be
eliminated by fitting an LC filter between the
frequency converter and the motor.
For further information, please contact the frequency
converter or motor supplier.
Other motor makes
If other motors makes than those supplied by
Grundfos are used, contact Grundfos or the motor
manufacturer.
4. Starting up the product
4.1 Before starting the product
• Make sure that all pipe connections are tight.
• Make sure that the pump is partly filled with liquid
(partly submerged).
• Make sure that the strainer is not blocked by
impurities.
4.2 Starting the product
1. Close the isolating valve on the outlet side of the
pump.
2. If the pump is fitted with an vent valve, this valve
must be opened. See fig. 9.
Fig. 9 Position of the vent valve
3. See the correct direction of rotation of the pump
on the motor fan cover or on the coupling guard.
When seen from the top, the pump must rotate
counterclockwise.
4. Start the pump and check the direction of
rotation.
5. Open the outlet pipe isolating valve a little.
6. If the pump is fitted with an vent valve, this valve
must be closed when a steady flow of liquid runs
out of it.
7. Completely open the outlet pipe isolating valve.
The pump has now been vented and is ready for
operation.
TM00 4257 3296
Grundfos motors, types MG 71 and MG 80
as well as MG 90 (1.5 kW, 2-pole), for
supply voltages up to and including 440 V
(see motor nameplate), must be protected
against voltage peaks higher than 650 V
(peak value) between the supply terminals.
0˚
90˚
180˚
270˚
WARNING
Too high pressure and leakage
Death or serious personal injury
• Do not run the pump against a closed
outlet valve for more than approx. 5
minutes.
TM01 6428 2399
Vent valve

English (GB)
10
5. Product introduction
5.1 Applications
The Grundfos pumps, types CRK and MTR, are tank
mounted multistage centrifugal pumps designed for
the following applications:
• liquid transfer in machine tools
• condensate transfer
• liquid transfer in industrial washing machines
• pressure boosting of cold or hot clean liquids
• similar applications.
5.2 Pumped liquids
Thin, non-explosive liquids, not containing fibres.
The liquid must not attack the pump materials
chemically.
When pumping liquids with a density and/or viscosity
higher than that of water, use motors with
correspondingly higher outputs, if required.
MTR version A pumps have a cast iron pump head.
In MTR version I and CRK version I pumps all parts
in contact with the pumped liquid are of stainless
steel EN/DIN 1.4301 or better.
5.3 Identification
5.3.1 Nameplate for CRK and MTR
Fig. 1 Example of nameplate
5.3.2 Type key for CRK
*See fig. 2.
Fig. 2 Number of chambers / impellers
TM05 5279 3912
Pos. Description
1 Type designation
2 Model
3 Product number
4 Place of production
5 Production year and week (YYWW)
6 P2, 50 Hz
7 Head against closed valve
8 Head at rated flow rate
9
Direction of rotation
CCW: Counterclockwise
CW: Clockwise
Type MTR10-6/3 A-W-A-HUUV
Model A 96889995 P1 1019
f 50 Hz 1.1P2 kW
30.3 mmin H
max 2853n
Q10 m /h H 22.7 m
CCWbar/ C25/90
Made in Hungary
p
max /t max
Serial No. 0001
MEI 0.70 p
°
Ș
3
-1
DK-8850 Bjerringbro, Denmark
--.-
12 3 4 5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 20
10 Country of production
11 Approval marks
12 Frequency
13 Speed
14 Rated flow rate
15 Maximum pressure and temperature
16
The number of the copy of the technical
file kept at KEMA (stated if the pump is
ATEX classified)
17 The serial number of the pump (stated if
the pump is ATEX classified)
18 ATEX category (stated if the pump is
ATEX classified)
19 Minimum efficiency index
20 Hydraulic pump efficiency
Example CRK E 4 - 160 / 2 -x -x -x -xxxx
Pump type
Pump with integrated
frequency control
Rated flow rate [m3/h]
Number of chambers*x 10
Number of impellers*
Code for pump version
Code for pipe connection
Code for materials
Code for shaft seal and rubber pump parts
TM01 4991 1299
Pos. Description
Number of
impellers
Number of
chambers

English (GB)
11
5.3.3 Type key for MTR, MTRE
Example MTR E 32 (s) -2 /1 -1 -A -F -A -H UU V
Pump type
Pump with integrated frequency control
Rated flow rate [m3/h]
All impellers with reduced diameter (applies only to MTR 1s)
Number of chambers, see fig. 2
Number of impellers, see fig. 2
Number of impellers with reduced diameter
Pump version
ABasicversion
B Oversize motor
C Inlet pipe
E Pump with certificate/approval
F 120 °C version
H Horizontal version
J Pump with different max. speed
P Undersize motor
T Double oversize
X Special version
Pipe connection
F DIN flange
G ANSI flange
J JIS flange
M Square flange with internal thread
W Internal thread
WB NPT internal thread
X Special version
Materials
ABasicversion
I Wetted parts EN/DIN 1.4301 / AISI 304
X Special version
Shaft seal
H Balanced cartridge seal
Q Silicon carbide
U Tungsten carbide
B Carbon
E EPDM
FFXM
KFFKM
VFKM

English (GB)
12
6. Technical data
* Applies to pump version F.
6.1 Ambient temperature
If the ambient temperature exceeds the above
temperature values or the pump is installed at an
altitude exceeding the above altitude values, the
motor must not be fully loaded due to the risk of
overheating. Overheating may result from excessive
ambient temperatures or the low density and
consequently low cooling effect of the air.
In such cases, it may be necessary to use a motor
with a higher rated output.
Fig. 3 Relationship between motor output (P2)
and ambient temperature/altitude
Example: A pump with a 1.1 kW IE2 MG motor: If
this pump is installed 4750 m above sea level, the
motor must not be loaded more than 88 % of rated
output. At an ambient temperature of 75 °C, the
motor must not be loaded more that 78 % of rated
output. If the pump is installed 4750 m above sea
level at an ambient temperature of 75 °C, the motor
must not be loaded more than 88 % ×78 % = 68.6 %
of rated output.
6.2 Maximum permissible operating
pressure and liquid temperature for the
shaft seal
Fig. 4 MTR 1s to 64
Pump type CRK MTR
Minimum liquid temperature [°C] -10 -10
Maximum liquid temperature [°C] +90 +90
(120*)
Maximum operating pressure [bar] 25 25
Enclosure class IP55 IP55
Motor power [kW] Motor make Motor efficiency class Max. ambient temperature at full load [°C] Max. altitude above sea level [m] Pos. in output curve in fig.
0.06 - 0.18 Siemens - +40 1000 1
0.25 - 0.55 MG - +40 1000 1
0.75 MG IE2 +60 3500 2
1.1 - 22 MG IE2 +60 3500 2
30-45 Siemens IE2 +55 2750 3
TM04 4914 2209
TM02 7854 4303
20 25 30 35 40 45 50 55 60 65 70 75 80
50
60
70
80
90
100
[%]
P2
1
2
3
t[°C]
1000 2250 3500 4750 m
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110
0
5
10
15
20
25
30
35
p [bar]
HUUE / HUUV
t [°C]

English (GB)
13
6.3 Minimum flow rate
Due to the risk of overheating, the pump must not be
used at flows below the minimum flow rate.
The curve below shows the minimum flow rate as a
percentage of the nominal flow rate in relation to the
liquid temperature.
Fig. 5 Minimum flow rate in relation to
temperature
6.4 Electrical data
See motor nameplate.
6.5 Maximum number of starts
7. Sound pressure level
The table below shows airborne noise emitted by
CRK and MTR pumps with motors fitted by
Grundfos.
TM04 5693 3809
Motor size
[kW]
Recommended maximum
number of starts per hour
0.06 - 0.18 100
0.25 - 2.2 250
3-4 100
5.5 - 11 50
15-22 40
30-45 8
40 50 60 70 80 90 100 110 120
t [°C]
0
10
20
30
Qmin
[%]
Motor
[kW] 50 Hz 60 Hz
0.37 50 55
0.55 50 53
0.75 50 54
1.1 52 57
1.5 54 59
2.2 54 59
3.0 55 60
4.0 62 66
5.5 60 65
7.5 60 65
11 60 65
15 60 65
18.5 60 65
22 66 70
30 71 75
37 71 75
45 71 75
LpA [dB(A)]

English (GB)
14
8. Servicing the product 8.1 Maintaining the product
Pump bearings and shaft seal are maintenance-free.
8.1.1 Motor bearings
Motors not fitted with grease nipples are
maintenance-free.
Motors fitted with grease nipples should be
lubricated with a high-temperature, lithium-based
grease. See the instructions on the fan cover.
In the case of seasonal operation (motor is idle for
more than 6 months of the year), we recommend to
grease the motor when the pump is taken out of
operation.
Depending on the ambient temperature, the motor
bearings must be replaced or lubricated according to
the table below. The table applies to 2-pole motors.
The number of operating hours stated for bearing
replacement are guidelines only.
Intervals for 4-pole motors are twice as long as those
for 2-pole motors.
If the ambient temperature is lower than 40 °C,
bearings must be replaced/lubricated at the intervals
mentioned under 40 °C.
WARNING
Electric shock
Death or serious personal injury
• Before starting any work on the
product, make sure that the power
supply has been switched off and that
it cannot be accidentally switched on.
WARNING
Moving parts
Death or serious personal injury
• Tighten the coupling screws to the
correct torque.
• Install the coupling guards securely to
the pump with the screws intended for
this purpose.
CAUTION
Corrosive liquids
Death or serious personal injury
• Wear personal protective equipment.
CAUTION
Toxic liquids
Death or serious personal injury
• Wear personal protective equipment.
CAUTION
Hot or cold liquid
Minor or moderate personal injury
• Wear personal protective equipment.
CAUTION
Hot or cold surface
Minor or moderate personal injury
• Make sure that no one can
accidentally come into contact with hot
or cold surfaces.
Motor
size
[kW]
Bearing replacement interval
[operating hours]
40 °C 45 °C 50 °C 55 °C 60 °C
0.37 - 0.75 18000 - - - -
1.1 - 7.5 20000 15500 12500 10000 7500
Motor
size
[kW]
Lubrication interval
[operating hours]
40 °C 45 °C 50 °C 55 °C 60 °C
11 - 18.5 4500 3400 2500 1700 1100
22 4000 3100 2300 1500 1000
30-55 4000 3000 2000 1500 -
75 2000 1500 1000 500 -

English (GB)
15
8.2 Filters
Chip trays, filters, etc. must be cleaned at regular
intervals to ensure a correct flow of liquid.
8.3 Periodic checks
At regular intervals, depending on the conditions and
time of operation, the following checks must be
made:
• Check the quantity of liquid and operating
pressure.
• Check that there are no leaks.
• Check that the motor is not overheating.
• Check the tripping function of the motor-
protective circuit breaker.
• Check that all controls are operating
satisfactorily.
If the above checks do not reveal any abnormal
operating details, no further checks are necessary.
Should any faults be found, check the symptoms
according to section 10. Fault finding the product.
8.4 Coupling adjustment
For adjustment of coupling in CRK and MTR 1s to
20, see page 400.
For adjustment of coupling in MTR 32, 45, 64, see
page 401.
8.5 Contaminated products
The product will be classified as contaminated if it
has been used for a liquid which is injurious to health
or toxic.
If you request Grundfos to service the product,
contact Grundfos with details about the liquid before
returning the product for service. Otherwise,
Grundfos can refuse to accept the product for
service.
Any application for service must include details
about the liquid.
Clean the product in the best possible way before
you return it.
Costs of returning the product are to be paid by the
customer.
8.6 Service documentation
Service documents and service kits are available in
Grundfos Product Center (http://product-
selection.grundfos.com).
9. Taking the product out of operation
9.1 Taking the product permanently out of
operation
The product will be classified as contaminated if it
has been used for a liquid which is injurious to health
or toxic.
CAUTION
Corrosive liquids
Death or serious personal injury
• Wear personal protective equipment.
CAUTION
Toxic liquids
Death or serious personal injury
• Wear personal protective equipment.
CAUTION
Hot or cold liquid
Minor or moderate personal injury
• Wear personal protective equipment.
CAUTION
Hot or cold surface
Minor or moderate personal injury
• Make sure that no one can
accidentally come into contact with hot
or cold surfaces.

English (GB)
16
10. Fault finding the product
WARNING
Electric shock
Death or serious personal injury
• Before starting any work on the
product, make sure that the power
supply has been switched off and that
it cannot be accidentally switched on.
WARNING
Moving parts
Death or serious personal injury
• Tighten the coupling screws to the
correct torque.
• Install the coupling guards securely to
the pump with the screws intended for
this purpose.
CAUTION
Corrosive liquids
Death or serious personal injury
• Wear personal protective equipment.
CAUTION
Toxic liquids
Death or serious personal injury
• Wear personal protective equipment.
CAUTION
Hot or cold liquid
Minor or moderate personal injury
• Wear personal protective equipment.
CAUTION
Hot or cold surface
Minor or moderate personal injury
• Make sure that no one can
accidentally come into contact with hot
or cold surfaces.
Fault Cause Remedy
1. Motor does not run
when started.
a) Power supply failure. Connect the power supply.
b) Fuses are blown. Replace fuses.
c) Motor-protective circuit breaker has
tripped.
Reactivate the motor-protective
circuit breaker.
d) Thermal protection has tripped. Reactivate the thermal protection.
e) Main contacts in motor-protective
circuit breaker are not making contact
or the coil is faulty.
Replace contacts or magnetic coil.
f) Control circuit is defective. Repair the control circuit.
g) Motor is defective. Replace the motor.
2. Motor-protective
circuit breaker trips
immediately when
power supply is
switched on.
a) One fuse blown/automatic circuit
breaker has tripped.
Replace fuse/cut in the circuit
breaker.
b) Contacts in motor-protective circuit
breaker are faulty.
Replace motor-protective circuit
breaker contacts.
c) Cable connection is loose or faulty. Fasten or replace the cable
connection.
d) Motor winding is defective. Replace the motor.
e) Pump mechanically blocked. Remove the mechanical blocking of
the pump.
f) Motor-protective circuit breaker
overload setting is too low.
Set the motor-protective circuit
breaker correctly.
3. Motor-protective-
circuit breaker trips
occasionally.
a) Motor-protective circuit breaker
overload setting is too low.
Set the motor-protective circuit
breaker correctly.
b) Low voltage at peak times. Reestablish constant power supply.
4. Motor-protective-
circuit breaker has
not tripped but the
pump does not run.
a) Check 1 a), b), d), e) and f).

English (GB)
17
11. Disposing of the product
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.
3. See also end-of-life information at
www.grundfos.com/product-recycling.
5. Pump runs but
gives no liquid or
pump performance
is not constant.
a) Pump strainer partly blocked by
impurities. Clean the strainer.
b) Liquid level in tank too low. Increase the liquid level.
c) Pump draws in air. Check the inlet conditions.
6. Leakage in shaft
seal.
a) Shaft seal is defective. Replace the shaft seal.
7. Noise. a) Cavitation. Check the inlet conditions.
b) Pump does not rotate freely (frictional
resistance) because of incorrect
pump shaft position.
Adjust the pump shaft.
c) Frequency converter operation. See section Motors supplied by
Grundfos.
Fault Cause Remedy
1. Motor does not run
when started.
a) Power supply failure. Connect the power supply.
b) Fuses are blown. Replace fuses.
c) Motor-protective circuit breaker has
tripped.
Reactivate the motor-protective
circuit breaker.
d) Thermal protection has tripped. Reactivate the thermal protection.
e) Main contacts in motor-protective
circuit breaker are not making contact
or the coil is faulty.
Replace contacts or magnetic coil.
f) Control circuit is defective. Repair the control circuit.
g) Motor is defective. Replace the motor.

Български (BG)
18
Български (BG) Упътване за монтаж иексплоатация
Превод на оригиналната английска версия
Настоящите инструкции за монтаж и
експлоатация описват помпи Grundfos CRK и
MTR.
Раздели 1-4 дават нужната информация за
разопаковане, монтаж иначален пуск на продукта
по безопасен начин.
Раздели 5-11 дават важна информация за
продукта, както иза сервиза, откриването на
неизправности ибракуването на продукта.
СЪДЪРЖАНИЕ
Стр.
1. Обща информация
1.1 Предупредителни текстове за
опасност
Винструкциите за монтаж иексплоатация,
инструкциите за безопасност исервизните
инструкции на Grundfos може да се появяват
символите ипредупредителните текстове за
опасност по-долу.
Предупредителните текстове за опасност са
структурирани по следния начин:
1. Обща информация 18
1.1 Предупредителни текстове за опасност 18
1.2 Бележки 19
2. Получаване на продукта 19
2.1 Повдигане на продукта 19
3. Инсталиране на продукта 20
3.1 Механичен монтаж 20
3.2 Местоположение на помпата 20
3.3 Електрическо свързване 21
4. Стартиране на продукта 22
4.1 Преди стартиране на продукта 22
4.2 Стартиране на продукта 22
5. Продуктова информация 23
5.1 Приложения 23
5.2 Работни течности 23
5.3 Идентификация 23
6. Технически данни 26
6.1 Околна температура 26
6.2 Максимално допустимо работно
налягане итемпература на течността
за уплътнението на вала 26
6.3 Минимален дебит 27
6.4 Електрически данни 27
6.5 Максимален брой стартирания 27
7. Ниво на звуково налягане 27
8. Сервизно обслужване на продукта 28
8.1 Поддръжка на продукта 28
8.2 Филтри 29
8.3 Периодични проверки 29
8.4 Настройка на съединението 29
8.5 Замърсени продукти 29
8.6 Сервизна документация 29
9. Извеждане на продукта от
експлоатация 29
9.1 Окончателно извеждане на продукта от
експлоатация 29
10. Откриване на неизправности в
продукта 30
11. Бракуване на продукта 31
Преди инсталиране прочетете този
документ. Монтажът иексплоатацията
трябва да отговарят на местната
нормативна уредба иутвърдените
правила за добра практика.
ОПАСНОСТ
Обозначава опасна ситуация, която
може да доведе до смърт или тежки
наранявания.
ПРЕДУПРЕЖДЕНИЕ
Обозначава опасна ситуация, която
може да доведе до смърт или тежки
наранявания.
ВНИМАНИЕ
Обозначава опасна ситуация, която
може да доведе до смърт или тежки
наранявания.
СИГНАЛИЗИРАЩА ДУМА
Описание на опасността
Последствия от пренебрегването на
предупреждението.
-Действия за предотвратяване на
опасността.

Български (BG)
19
1.2 Бележки
Винструкциите за монтаж иексплоатация,
инструкциите за безопасност исервизните
инструкции на Grundfos може да се появяват
символите ибележките по-долу.
2. Получаване на продукта
2.1 Повдигане на продукта
Когато повдигате целия продукт сдвигателя,
следвайте описаните по-долу инструкции:
•Помпа смощност на двигателя 0,37 - 5,5 kW:
Вдигнете помпата спомощта на въжета,
прикрепени към фланеца на двигателя.
•Помпа смощност на двигателя 7,5 - 22 kW:
Вдигнете помпата, като използвате халките за
повдигане на двигателя.
•Помпа смощност на двигателя 30-45 kW:
Вдигнете помпата, като използвате скобите за
повдигане на фланеца на двигателя.
Фиг. 1 Точки за повдигане
Вслучай на помпи сдруги двигатели, които не са
MG или Siemens, ви препоръчваме да повдигате
помпата спомощта на въжета, прикрепени към
фланеца на двигателя.
Съблюдавайте тези инструкции при
работа свзривобезопасни продукти.
Син или сив кръг сбял графичен символ
обозначава, че за избягване на
опасността трябва да се предприеме
действие.
Червен или сив кръг сдиагонална
лента, обикновено счерен графичен
символ, обозначава, че определено
действие трябва да не се предприема
или да бъде преустановено.
Неспазването на тези инструкции може
да доведе до неизправност или повреда
на оборудването.
Съвети ипрепоръки, които улесняват
работата.
0,37 - 5,5 kW 7,5 - 22 kW
TM04 0339 0608 TM04 0341 0608
30-45 kW 55-75 kW
TM05 9564 4113

Български (BG)
20
3. Инсталиране на продукта
3.1 Механичен монтаж
3.2 Местоположение на помпата
Помпата епредназначена за вертикален и
хоризонтален монтаж към резервоар. За
хоризонтален монтаж обаче са подходящи само
MTR версия H иMTRE версия H.
Помпата се монтира вотвор, изрязан в
резервоара, исе закрепва към него спомощта на
четири винта сшестостенна глава през отворите
вмонтажния фланец.
Фиг. 2 Монтаж във вертикално и
хоризонтално положение
При MTR, MTRE помпи, монтирани в
хоризонтално положение, сдвигатели от 5,5 kW
нагоре, двигателите имат крачета итрябва да им
се осигури опора.
Фиг. 3 Хоризонтално монтирани MTR с
краче
Фиг. 4 Вертикален монтаж
Размери на монтажните фланци
ПРЕДУПРЕЖДЕНИЕ
Движещи се части
Смърт или тежки наранявания
-Затегнете свързващите винтове до
правилния въртящ момент.
-Монтирайте предпазните щитове на
съединението здраво към помпата с
предвидените за целта винтове.
ВНИМАНИЕ
Гореща повърхност
Може да доведе до леки или средни
наранявания
-Помпата трябва да се монтира така,
че за хората да няма риск от случаен
допир до горещата повърхност на
двигателя.
TM01 4990 1399TM04 5755 3809
Вертикално Хоризонтално
За помпи, монтирани вхоризонтално
положение, осигурете достатъчно
уплътнение между фланеца на помпата
ирезервоара. Обикновено едостатъчна
уплътняваща гарнитура.
Преди да смените уплътненията на
вала за хоризонтално монтирани помпи,
изпразнете резервоара.
Помпи MTR 32, 45 и64 могат да се
монтират само вертикално.
TM02 8042 4503
Тип на
помпата D1 D2 D3 L C X
CRK 2, 4 140 160 180 100 Rp 1 1/4
G 1 1/4 ∅7,5
MTR 1s, 1,
3, 5, 8 140 160 180 100 Rp 1 1/4 G 1 1/4 ∅9,5
MTR 10,
15, 20 200 225 250 125 Rp 2 G 2 ∅9
MTR 32 190 220 250 150 DN 65 ∅12
MTR 45,
64 240 265 290 165 DN 80 ∅12
D1
D2
D3
4 x X
C
L