Grundfos CRK Series, CRK 8, CRK 16, MTR Series, CRK 2 Installation And Operating Instructions Manual

CRK, MTR

Installation and operating instructions
Montage- und Betriebsanleitung
Notice d’installation et d’entretien
Istruzioni di installazione e funzionamento
Instrucciones de instalación y funcionamiento
Instruções de instalação e funcionamento

√‰ЛБ›В˜ ВБО·Щ¿ЫЩ·ЫЛ˜ О·И ПВИЩФ˘ÚÁ›·˜

Installatie- en bedieningsinstructies
Monterings- och driftsinstruktion
Asennus- ja käyttöohjeet
Monterings- og driftsinstruktion

GRUNDFOS INSTRUCTIONS

We Grundfos declare under our sole responsibility that the products
CRK and MTR, to which this declaration relates, are in conformity

with the Council Directives on the approximation of the laws of the
EC Member States relating to

– Machinery (98/37/EC).

– Electromagnetic compatibility (89/336/EEC).

– Electrical equipment designed for use within certain voltage

Nous Grundfos déclarons sous notre seule responsabilité que les
produits CRK et MTR auxquels se réfère cette déclaration sont con-
formes aux Directives du Conseil concernant le rapprochement des
législations des Etats membres CE relatives à

– Machines (98/37/CE).

– Compatibilité électromagnétique (89/336/CEE).

– Matériel électrique destiné à employer dans certaines limites de

Nosotros Grundfos declaramos bajo nuestra única responsabilidad
que los productos CRK y MTR a los cuales se refiere esta declara­ción son conformes con las Directivas del Consejo relativas a la
aproximación de las legislaciones de los Estados Miembros de la CE
sobre

– Máquinas (98/37/CE).

– Compatibilidad electromagnética (89/336/CEE).

– Material eléctrico destinado a utilizarse con determinadas lími-

∂Ì›˜ Ë Grundfos ‰ЛПТУФ˘МВ МВ ·рФОПВИЫЩИО¿ ‰ИО‹ М·˜ В˘ı‡ÓË
fiÙÈ Ù· ðÚÔÈfiÓÙ· CRK Î·È MTR Û˘ММФЪКТУФУЩ·И МВ ЩЛУ √‰ËÁ›· ÙÔ˘

™˘Ì‚Ô˘Ï›Ô˘ Вр› ЩЛ˜ Ы‡БОПИЫЛ˜ ЩˆУ УfiÌˆÓ ÙˆÓ ∫Ú·ÙÒÓ MÂÏÒÓ Ù˘
∂˘Úˆð·È΋˜ ∂ÓˆÛ˘ Û ۯ¤ÛË Ì ٷ

– ªË¯·Ó‹Ì·Ù· (98/37/EC).

– ∏ПВОЩЪФМ·БУЛЩИО‹ Ы˘Ì‚·ÙfiÙËÙ· (89/336/EEC).

– ∏ПВОЩЪИО¤˜ Ы˘Û΢¤˜ ۯ‰ȷṲ̂Ó˜ ÁÈ¿ ¯Ú‹ÛË ÂÓÙfi˜

Vi Grundfos försäkrar under ansvar, att produkterna CRK och MTR,
som omfattas av denna försäkran, är i överensstämmelse med
Rådets Direktiv om inbördes närmande till EU-medlemsstaternas
lagstiftning, avseende

– Maskinell utrustning (98/37/EC).

– Elektromagnetisk kompatibilitet (89/336/EC).

– Elektrisk material avsedd för användning inom vissa spännings-

Vi Grundfos erklærer under ansvar, at produkterne CRK og MTR,
som denne erklæring omhandler, er i overensstemmelse med
Rådets direktiver om indbyrdes tilnærmelse til EF medlemsstaternes
lovgivning om

– Maskiner (98/37/EF).

– Elektromagnetisk kompatibilitet (89/336/EØF).

– Elektrisk materiel bestemt til anvendelse inden for visse

Declaration of Conformity

Standard used: EN ISO 12100.

Standards used: EN 61 000-6-2 and EN 61 000-6-3.

limits (73/23/EEC) [95].
Standards used: EN 60 335-1 and EN 60 335-2-51.

Déclaration de Conformité

Standard utilisé: EN ISO 12100.

Standards utilisés: EN 61 000-6-2 et EN 61 000-6-3.

tension (73/23/CEE) [95].
Standards utilisés: EN 60 335-1 et EN 60 335-2-51.

Declaración de Conformidad

Norma aplicada: EN ISO 12100.

Normas aplicadas: EN 61 000-6-2 y EN 61 000-6-3.

tes de tensión (73/23/CEE) [95].
Normas aplicadas: EN 60 335-1 y EN 60 335-2-51.

¢‹ÏˆÛË ™˘ÌÌfiÚʈÛ˘

¶ÚfiÙ˘ðÔ ðÔ˘ ¯ЪЛЫИМФрФИ‹ıËÎÂ: EN ISO 12100.

¶ÚfiÙ˘ð· ðÔ˘ ¯ЪЛЫИМФрФИ‹ıËηÓ: EN 61 000-6-2 ηÈ
EN 61 000-6-3.

ФЪИЫМ¤УˆУ ФЪ›ˆУ ЛПВОЩЪИО‹˜ Щ¿ЫЛ˜ (73/23/EEC) [95].
¶ЪfiÙ˘ð· ðÔ˘ ¯ЪЛЫИМФрФИ‹ıËηÓ: EN 60 335-1 ηÈ
EN 60 335-2-51.

Försäkran om överensstämmelse

Använd standard: EN ISO 12100.

Använda standarder: EN 61 000-6-2 och EN 61 000-6-3.

gränser (73/23/EC) [95].
Använda standarder: EN 60 335-1 och EN 60 335-2-51.

Overensstemmelseserklæring

Anvendt standard: EN ISO 12100.

Anvendte standarder: EN 61 000-6-2 og EN 61 000-6-3.

spændingsgrænser (73/23/EØF) [95].
Anvendte standarder: EN 60 335-1 og EN 60 335-2-51.

Wir Grundfos erklären in alleiniger Verantwortung, daß die Pro­dukte CRK und MTR, auf die sich diese Erklärung bezieht, mit den
folgenden Richtlinien des Rates zur Angleichung der Rechtsvor­schriften der EG-Mitgliedstaaten übereinstimmen:

– Maschinen (98/37/EG).

Norm, die verwendet wurde: EN ISO 12100.

– Elektromagnetische Verträglichkeit (89/336/EWG).

Normen, die verwendet wurden: EN 61 000-6-2 und
EN 61 000-6-3.

– Elektrische Betriebsmittel zur Verwendung innerhalb bestimmter

Spannungsgrenzen (73/23/EWG) [95].
Normen, die verwendet wurden: EN 60 335-1 und
EN 60 335-2-51.

Noi Grundfos dichiariamo sotto la nostra esclusiva responsabilità
che i prodotti CRK e MTR ai quali questa dichiarazione se riferisce
sono conformi alle Direttive del Consiglio concernente il
ravvicinamento delle legislazioni degli Stati membri CE relative a

– Macchine (98/37/CE).

Standard usato: EN ISO 12100.

– Compatibilità elettromagnetica (89/336/CEE).

Standard usati: EN 61 000-6-2 e EN 61 000-6-3.

– Materiale elettrico destinato ad essere utilizzato entro certi limiti

di tensione (73/23/CEE) [95].
Standard usati: EN 60 335-1 e EN 60 335-2-51.

Nós Grundfos declaramos sob nossa única responsabilidade que
os produtos CRK e MTR aos quais se refere esta declaração estão
em conformidade com as Directivas do Conselho das Comunidades
Europeias relativas à aproximação das legislações dos Estados
Membros respeitantes à

– Máquinas (98/37/CE).

Norma utilizada: EN ISO 12100.

– Compatibilidade electromagnética (89/336/CEE).

Normas utilizadas: EN 61 000-6-2 e EN 61 000-6-3.

– Material eléctrico destinado a ser utilizado dentro de certos limi-

tes de tensão (73/23/CEE) [95].
Normas utilizadas: EN 60 335-1 e EN 60 335-2-51.

Wij Grundfos verklaren geheel onder eigen verantwoordelijkheid
dat de produkten CRK en MTR waarop deze verklaring betrekking
heeft in overeenstemming zijn met de Richtlijnen van de Raad
inzake de onderlinge aanpassing van de wetgevingen van de Lid­Staten betreffende

– Machines (98/37/EG).

Norm: EN ISO 12100.

– Elektromagnetische compatibiliteit (89/336/EEG).

Normen: EN 61 000-6-2 en EN 61 000-6-3.

– Elektrisch materiaal bestemd voor gebruik binnen bepaalde

spanningsgrenzen (73/23/EEG) [95].
Normen: EN 60 335-1 en EN 60 335-2-51.

Me Grundfos vakuutamme yksin vastuullisesti, että tuotteet CRK ja
MTR, jota tämä vakuutus koskee, noudattavat direktiivejä jotka käsit­televät EY:n jäsenvaltioiden koneellisia laitteita koskevien lakien
yhdenmukaisuutta seur.:

– Koneet (98/37/EY).

Käytetty standardi: EN ISO 12100.

– Elektromagneettinen vastaavuus (89/336/EY).

Käytetyt standardit: EN 61 000-6-2 ja EN 61 000-6-3.

– Määrättyjen jänniterajoitusten puitteissa käytettävät sähköiset

laitteet (73/23/EY) [95].
Käytetyt standardit: EN 60 335-1 ja EN 60 335-2-51.

Bjerringbro, 1st July 2004

Konformitätserklärung

Dichiarazione di Conformità

Declaração de Conformidade

Overeenkomstigheidsverklaring

Vastaavuusvakuutus

Jan Strandgaard

Technical Manager

CRK, MTR

Installation and
operating instructions

Montage- und
Betriebsanleitung

Notice d’installation
et d’entretien

Istruzioni di installazione
e funzionamento

Instrucciones de instalación
y funcionamiento

Instruções de instalação
e funcionamento

√‰ЛБ›В˜ ВБО·Щ¿ЫЩ·ЫЛ˜
О·И ПВИЩФ˘ÚÁ›·˜

Page 4

Seite 10

Page 18

Pag. 25

Pág. 31

Pág. 38

™ÂÏ›‰· 45

Installatie- en
bedieningsinstructies

Monterings- och
driftsinstruktion

Asennus- ja
käyttöohjeet

Monterings- og
driftsinstruktion

Pag. 52

Sida 59

Sivu 65

Side 71

3

CONTENTS

Page

1. Handling 4

2. Applications 4

2.1 Pumped liquids 4

3. Type designation 4

3.1 Pump key for CRK 4

3.2 Pump key for MTR 5

4. Technical data 5

4.1 Ambient temperature 5

4.2 Maximum permissible operating pressure
and liquid temperature for the shaft seal 5

4.3 Minimum flow rate 5

4.4 Electrical data 5

4.5 Frequency of starts and stops 5

5. Installation 5

5.1 Pump location 5

5.2 Suction conditions 6

6. Electrical connection 7

6.1 Frequency converter operation 7

7. Start-up 7

8. Maintenance 8

8.1 Lubrication 8

8.2 Filters 8

8.3 Periodic checks 8

9. Service 8

9.1 Service kits 8

9.2 Coupling adjustment 8

10. Sound pressure level 8

11. Disposal 8

12. Fault finding chart 9

Before beginning installation procedures,
these installation and operating instruc­tions should be studied carefully. The in­stallation and operation should also be in
accordance with local regulations and ac
cepted codes of good practice.

1. Handling

The motors of the CRK 2 to 16 and MTR

to 64 pumps are supplied with lifting

1s
eyes which must not be used for lifting the
entire pump.

When the entire pump is to be lifted, observe the fol­lowing:

• CRK 2 to 16 and MTR 1s to 64 pumps fitted with

Grundfos MG motors should be lifted in the pump
head by means of straps or the like.

• CRK 16 and MTR 15 to 64 fitted with Siemens mo-

tors of 15 kW and up should be lifted by means of
the lifting devices fitted to the motor.

• For other motor makes than those mentioned

above, it is recommended to lift the pump in the
pump head by means of straps.

2. Applications

The Grundfos pumps, types CRK and MTR, are
multistage centrifugal pumps designed for pumping
liquids for machine tools, condensate transfer, liquid
transfer in industrial washing machines and similar
applications.

The pump must not be used for the trans­fer of inflammable liquids such as diesel oil
and petrol.

2.1 Pumped liquids

Thin, non-explosive liquids, not containing fibres.
The liquid must not attack the pump materials chem
ically.

When pumping liquids with a density and/or viscosity
higher than that of water, motors with correspond
ingly higher outputs must be used, if required.

MTR

MTR pumps are used for liquid transfer in machine
tools and in all systems where a tank mounted pump
is required.

For liquid transfer, circulation and pressure boosting
of cold or hot clean liquids.

MTRI (CRKI)

In systems where all parts in contact with the liquid
must be made of high-grade stainless steel, MTRI
and CRKI pumps must be used.

3. Type designation

The standard range of pumps encompasses com­plete impeller in chamber combinations. On request,
other lengths, against duty combinations, can be
supplied by fitting empty intermediate chambers in
stead of standard chambers with impellers.

The pump key on the pump nameplate indicates the
number of chambers and impellers fitted to the

­pump.

3.1 Pump key for CRK

Example CRK 4 - 160 / 2 -x -x -x -xxxx

Pump range

Nominal flow rate in m³/h

Number of stages x 10

Number of impellers

Code for pump version

Code for pipework connection

Code for materials

Code for shaft seal and rubber pump parts

-

-

-

4

3.2 Pump key for MTR

Example MTR 32- 2 /1 -1 -x -x -x -xxxx

Pump range

Nominal flow rate in m³/h

Number of stages

Number of impellers (is only
used if the pump has fewer
impellers than chambers)

Number of impellers with reduced
diameter (MTR 32, 45, 64 only)

Code for pump version

Code for pipework connection

Code for materials

Code for shaft seal

4. Technical data

Pump type CRK MTR

Minimum liquid temperature [°C] –10 –10

Maximum liquid temperature [°C] +90 +90

Maximum operating pressure
[bar]

Enclosure class IP 54

4.1 Ambient temperature

Maximum +40°C.
If the ambient temperature exceeds +40°C or if the

motor is located 1000 metres above sea level, the
motor output (P2) must be reduced due to the low
density and consequently low cooling effect of the
air. In such cases, it may be necessary to use a mo
tor with a higher rated output.

P2
[%]

100

90

80

70

60

50

20 25 30 35 40 45 50 55 60 65 70 75 80

1000 2250 3500 m

Fig. 1 CRK 2 to 16

Example:

Figure 1 shows that P2 must be reduced to 88%
when the pump is installed 3500 metres above sea
level. At an ambient temperature of 70°C, P2 must
be reduced to 78% of the rated output.

25 25

IP 54
IP 55

t [°C]

4.2 Maximum permissible operating pres­sure and liquid temperature for the
shaft seal

p [bar]

35
30

25

20

15

10

5

0

-20 -10 0 10 20 30 40 50 60 70 80 90 100 110

HUUE / HUUV

Fig. 2 MTR 1s to 64

4.3 Minimum flow rate

Due to the risk of overheating, the pump should 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.

Qmin

[%]

15

10

5

0

40 50 60 70 80 90 100 110

Fig. 3 Minimum flow rates

­Note: The pump must never operate against a

closed discharge valve.

4.4 Electrical data

See motor nameplate.

4.5 Frequency of starts and stops

Motors up to 11 kW: Maximum 300 times per hour.
Other motors: Maximum 200 times per hour.

5. Installation

TM00 2189 1598

5.1 Pump location

The pump is designed for tank mounting in vertical
position. The pump is positioned in a hole cut into
the cover of the tank (upper side) and is secured to
the tank by four hexagon head screws through the
holes in the mounting flange. It is recommended to fit
a sealing gasket between the pump flange and tank.

The pump must be installed so that per­sons cannot accidentally come into con­tact with the hot surface of the motor.

t [°C]

t [°C]

TM02 7854 4303TM02 7853 4303

5

If the pump is to be installed horizontally, the drain
hole of the motor stool must be fitted with a plug and
four closed nuts with O-rings must be fitted to the
straps.

Closed nut

Fig. 4 Horizontal installation

Note: MTR 32, 45 and 64 pumps can only be in-

stalled in vertical position.

Drain plug

4 x X

5.2 Suction 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.

Note: MTR 32, 45 and 64 pumps have no priming
screw.

Pump type A [mm] B [mm]

CRK 2, 4 and
MTR 1s, 1, 3, 5

CRK 8, 16 and
MTR 10, 15, 20

TM02 8043 4503TM02 8042 4503

MTR 32, 45, 64 70 –

41 28

50 25

A

B

25 mm

Fig. 6 CRK 2, 4 and MTR 1s, 1, 3, 5

TM00 4841 3897TM00 4842 3897TM01 4335 5298

D1
D2
D3

L

C

Fig. 5 Vertical installation

Pump mounting flange dimensions:

Pump type D1 D2 D3 L C X

CRK 2, 4 140 160 180 100

MTR 1s, 1, 3, 5 140 160 180 100

CRK 8, 16 and
MTR 10, 15, 20

MTR 32 190 220 250 150 DN 65 ø12

MTR 45, 64 240 265 290 165 DN 80 ø12

6

200 225 250 125 Rp 2 ø9

Rp
1¼

Rp
1¼

ø7.5

ø9

A

B

25 mm

Fig. 7 CRK 8, 16 and MTR 10, 15, 20

25 mm

Fig. 8 MTR 32, 45, 64

A

6. Electrical connection

The electrical connection should be carried out by an
authorized electrician in accordance with local regu
lations.

Before removing the terminal box cover
and before any removal/dismantling of the
pump, make sure that the electricity supply
has been switched off.

The pump must be connected to an exter­nal mains switch with a minimum contact
gap of 3 mm in all poles.

The operating voltage and frequency are marked on
the pump nameplate. Please make sure that the mo
tor is suitable for the electricity supply on which it will
be used.

Single-phase Grundfos motors incorporate a ther­mal switch and require no additional motor protec­tion.

Three-phase motors must be connected to a motor
starter.

The terminal box can be turned to four positions, in
90° steps, see fig.

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.

The electrical connection should be carried out as
shown in the diagram inside the terminal box cover.

9:

0˚

The above disturbances, i.e. both increased acoustic
noise and detrimental voltage peaks, can be elimi
nated 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 than those supplied by
Grundfos:

Please contact Grundfos or the motor manufacturer.

7. Start-up

-

Before starting the pump, make sure:

• that all pipe connections are tight.

• that the pump body is par tly filled with liquid

• that the strainer is not blocked by impurities.

Start the pump as follows:

1. Close the isolating valve on the discharge side of

2. If the pump is fitted with a vent valve, this valve

Pay attention to the direction of the vent
hole and take care to ensure that the es
caping water does not cause injury to per­sons or damage to the motor or other
components.

(partly submerged).

the pump.

must be opened, see fig.

10.

-

-

270˚

180˚

90˚

Fig. 9 Terminal box positions

6.1 Frequency converter operation

Motors supplied by Grundfos:

All three-phase motors supplied by Grundfos can be
connected to a frequency converter.

Dependent on the frequency converter type, this may
cause increased acoustic noise from the motor. Fur
thermore, it may cause the motor to be exposed to
detrimental voltage peaks.

Note: Grundfos motors types MG 71 and MG 80 as
well as MG 90 (1.5 kW, 2-pole), all for supply volt
ages 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.

It is recommended to protect all other motors against
voltage peaks higher than 850 V.

-

Vent valve

Fig. 10

TM00 4257 2294

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 should rotate
counter-clockwise.

4. Start the pump and check the direction of rota­tion.

5. Open the discharge isolating valve a little.

6. If the pump is fitted with a vent valve, this valve

-

must be closed when a steady stream of liquid
runs out of it.

7. Completely open the discharge isolating valve.

The pump has now been vented and is ready for op­eration.

Note: The pump is not allowed to run against a
closed discharge valve for more than approx. 5 min
utes as this will cause an increase in temperature/
formation of steam in the pump which may cause
damage to the pump.

TM01 6428 2399

-

7

8. Maintenance

Before starting work on the pump, make
sure that all power supplies to the pump
have been switched off and that they can
not be accidentally switched on.

Pumps installed in accordance with these instruc­tions require very little maintenance.

8.1 Lubrication

The mechanical shaft seal is self-adjusting and has
wear-resistant seal rings which are lubricated and
cooled by the pumped liquid.

The pump bearings are also lubricated by the
pumped liquid. The motor ball bearings are grease
packed and sealed for life. No further lubrication is
necessary.

Pumps from 4 kW and up have angular contact bear­ings.

If the pump is to be drained for a long period of inac­tivity, remove one of the coupling guards to inject a
few drops of silicone oil on the shaft between the
pump head and the coupling. This will prevent the
shaft seal faces from sticking.

Motor bearings:

Motors which are 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.

8.2 Filters

Chip trays, filters, etc. should 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 should 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 of the motor starter.

• 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
with section

12. Fault finding chart.

9. Service

Note: If a pump has been used for a liquid which is

injurious to health or toxic, the pump will be classi
fied as contaminated.

If Grundfos is requested to service the pump, Grund­fos must be contacted with details about the pumped
liquid, etc. before the pump is returned for service.
Otherwise Grundfos can refuse to accept the pump
for service.

-

Possible costs of returning the pump are paid by the
customer.

However, any application for service (no matter to
whom it may be made) must include details about

­the pumped liquid if the pump has been used for liq

uids which are injurious to health or toxic.

9.1 Service kits

Service kits for CRK and MTR, see
www.Grundfos.com (WebGOLD), WinCAPS or
Service Kit Catalogue.

9.2 Coupling adjustment

For adjustment of coupling in CRK and MTR

to 20, see fig. F, page 77.

1s
For adjustment of coupling in MTR 32, 45, 64,

fig. G, page 78.

see

10. Sound pressure level

Motor

[kW]

0.37 <70 <70

0.55 <70 <70

0.75 <70 <70

1.1 <70 <70

1.5 <70 71

2.2 <70 71

3.0 <70 71

4.0 73 71

5.5 73 78

7.5 73 78

11 80 84

15 72 77

18.5 72 77

22 70 75

30 70 84

LpA [dB(A)]

50 Hz 60 Hz

11. Disposal

Disposal of this product must be carried out accord­ing to the following guidelines:

1. Use the local public or private waste collection

service.

2. In case such waste collection service does not

exist or cannot handle the materials used in the
product, please deliver the product or any haz
ardous materials from it to your nearest Grundfos
company or service workshop.

-

-

8

12. Fault finding chart

Before starting work on the pump, make sure that the electricity supply has been switched off and
that it cannot be accidentally switched on.

Fault Cause Remedy

1. Motor does not
run when started.

2. Motor starter over­load trips out im­mediately when
supply is switched
on.

3. Motor starter over­load trips out oc­casionally.

4. Motor starter has
not tripped out but
the pump does not
run.

5. Pump runs but
gives no liquid or
pump capacity is
not constant.

6. Leakage in shaft
seal.

7. Noise. a) Cavitation occurs in the pump. Check the suction conditions.

a) Supply failure. Connect the electricity supply.

b) Fuses are blown. Replace fuses.

c) Motor starter overload has tripped out. Reactivate the motor protection.

d) Thermal protection has tripped out. Reactivate the thermal protection.

e) Main contacts in motor starter are not

making contact or the coil is faulty.

f) Control circuit is defective. Repair the control circuit.

g) Motor is defective. Replace the motor.

a) One fuse/automatic circuit breaker is

blown.

b) Contacts in motor starter overload are

faulty.

c) Cable connection is loose or faulty. Fasten or replace the cable connec-

d) Motor winding is defective. Replace the motor.

e) Pump mechanically blocked. Remove the mechanical blocking of

f) Overload setting is too low. Set the motor starter correctly.

a) Overload setting is too low. Set the motor starter correctly.

b) Low voltage at peak times. Check the electricity supply.

a) Supply failure. Connect the electricity supply.

b) Fuses are blown. Replace fuses.

c) Thermal protection has tripped out. Reactivate the thermal protection.

d) Main contacts in motor starter are not

making contact or the coil is faulty.

a) Pump strainer partly blocked by impu-

rities.

b) Liquid level in tank too low. Increase the liquid level.

c) Pump draws in air. Check the suction conditions.

a) Shaft seal is defective. Replace the shaft seal.

b) Pump does not rotate freely (frictional

resistance) because of incorrect pump
shaft position.

c) Frequency converter operation. See section 6.1 Frequency converter

Replace contacts or magnetic coil.

Cut in the fuse.

Replace motor starter contacts.

tion.

the pump.

Replace contacts or magnetic coil.

Clean the strainer.

Adjust the pump shaft.

operation.

Subject to alterations.

9

CRK and MTR 1s to 20

TM02 8050 4503

M6 - 13 Nm
M8 - 31 Nm
M10 - 62 Nm

M5 - 2.5 Nm

x

0.5x

TM02 8052 4503

TM02 8051 4503

TM02 7420 3403

77

MTR 32, 45, 64

1

1.7 mm

2

MTR 32

M10 x 25 62 Nm

TM01 9785 3100

MTR 45
MTR 64

TM01 9786 3100

78

TM01 9788 3100

Denmark

GRUNDFOS DK A/S
Poul Due Jensens Vej 7A
DK-8850 Bjerringbro
Tlf.: [phone]
Telefax: [phone]
E-mail: [e-mail]
www.grundfos.com/DK

Argentina

Bombas GRUNDFOS de Argen­tina S.A.
Ruta Panamericana km. 37.500
Lote 34A
1619 - Garin
Pcia. de Buenos Aires
Phone: [phone]
Telefax: [phone]

Australia

GRUNDFOS Pumps Pty. Ltd.
P.O. Box 2040
Regency Park
South Australia 5942
Phone: [phone]
Telefax: [phone]

Austria

GRUNDFOS Pumpen Vertrieb
Ges.m.b.H.
Grundfosstraße 2
A-5082 Grödig/Salzburg
Tel.: [phone]
Telefax: [phone]

Belgium

N.V. GRUNDFOS Bellux S.A.
Boomsesteenweg 81-83
B-2630 Aartselaar
Tél.: [phone]
Télécopie: [phone]

Brazil

GRUNDFOS do Brasil Ltda.
Rua Tomazina 106
CEP 83325 - 040
Pinhais - PR
Phone: [phone]
Telefax: [phone]

Canada

GRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Phone: [phone]
Telefax: [phone]

China

GRUNDFOS Pumps (Shanghai)
Co. Ltd.
22 Floor, Xin Hua Lian Building
755-775 Huai Hai Rd, (M)
Shanghai 200020
PRC
Phone: [phone]
Telefax: [phone]

Czech Republic

GRUNDFOS s.r.o.
Cajkovského 21
779 00 Olomouc
Phone: [phone]
Telefax: [phone]

Finland

OY GRUNDFOS Pumput AB
Mestarintie 11
Piispankylä
FIN-01730 Vantaa (Helsinki)
Phone: [phone]
Telefax: [phone]

France

Pompes GRUNDFOS Distribu­tion S.A.
Parc d’Activités de Chesnes
57, rue de Malacombe
F-38290 St. Quentin Fallavier
(Lyon)
Tél.: [phone]
Télécopie: [phone]

Germany

GRUNDFOS GMBH
Schlüterstr. 33
40699 Erkrath
Tel.: [phone]
Telefax: [phone]
e-mail: [e-mail]
Service in Deutschland:
e-mail: kundendienst@grund­fos.de

Greece

GRUNDFOS Hellas A.E.B.E.
20th km. Athinon-Markopoulou
Av.
P. O . B ox 71
GR-19002 Peania
Phone: [phone]
Telefax: +0030-210-66 46 273

Hong Kong

GRUNDFOS Pumps (Hong
Kong) Ltd.
Unit 1, Ground floor
Siu Wai Industrial Centre
29-33 Wing Hong Street &
68 King Lam Street, Cheung Sha
Wan
Kowloon
Phone: [phone]/
27861741
Telefax: [phone]

Hungary

GRUNDFOS Hungária Kft.
Park u. 8
H-2045 Törökbálint,
Phone: [phone]
Telefax: [phone]

India

GRUNDFOS Pumps India Pri­vate Limited
Flat A, Ground Floor
61/62 Chamiers Aptmt
Chamiers Road
Chennai 600 028
Phone: [phone]
Telefax: [phone]

Indonesia

PT GRUNDFOS Pompa
Jl. Rawa Sumur III, Blok III/CC-1
Kawasan Industri, Pulogadung
Jakarta 13930
Phone: [phone]
Telefax: [phone]/460
6901

Ireland

GRUNDFOS (Ireland) Ltd.
Unit 34, Stillorgan Industrial Park
Blackrock
County Dublin
Phone: [phone]
Telefax: [phone]

Italy

GRUNDFOS Pompe Italia S.r.l.
Via Gran Sasso 4
I-20060 Truccazzano (Milano)
Tel.: [phone]
Telefax: [phone]/
95838461

Japan

GRUNDFOS Pumps K.K.
1-2-3, Shin Miyakoda
Hamamatsu City
Shizuoka pref. 431-21
Phone: [phone]
Telefax: [phone]

Korea

GRUNDFOS Pumps Korea Ltd.
6th Floor, Aju Building 679-5
Yeoksam-dong, Kangnam-ku,
135-916
Seoul Korea
Phone: [phone]
Telefax: [phone]

Malaysia

GRUNDFOS Pumps Sdn. Bhd.
7 Jalan Peguam U1/25
Glenmarie Industrial Park
40150 Shah Alam
Selangor
Phone: [phone]
Telefax: [phone]

Mexico

Bombas GRUNDFOS de Mexico
S.A. de C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aerop­uerto
Apodaca, N.L. 66600
Mexico
Phone: [phone]
Telefax: [phone]

Netherlands

GRUNDFOS Nederland B.V.
Postbus 104
NL-1380 AC Weesp
Tel.: [phone]
Telefax: [phone]/492299

New Zealand

GRUNDFOS Pumps NZ Ltd.
17 Beatrice Tinsley Crescent
North Harbour Industrial Estate
Albany, Auckland
Phone: [phone]
Telefax: [phone]

Norway

GRUNDFOS Pumper A/S
Strømsveien 344
Postboks 235, Leirdal
N-1011 Oslo
Tlf.: [phone]
Telefax: [phone]

Poland

GRUNDFOS Pompy Sp. z o.o.
ul. Klonowa 23
Baranowo k. Poznania
PL-62-081 Przezmierowo
Phone: [phone]
Telefax: [phone]

Portugal

Bombas GRUNDFOS Portugal,
S.A.
Rua Calvet de Magalhães, 241
Apartado 1079
P-2770-153 Paço de Arcos
Tel.: [phone]
Telefax: [phone]

Russia

OOO GRUNDFOS
Shkolnaya 39
RUS-109544 Moscow
Phone: [phone], +7­095 737 30 00
Telefax: [phone], +7­095 737 75 36
e-mail: grundfos.mos­[e-mail]

Singapore

GRUNDFOS (Singapore) Pte.
Ltd.
24 Tuas West Road
Jurong Town
Singapore 638381
Phone: [phone]
Telefax: [phone]

Spain

Bombas GRUNDFOS España
S.A.
Camino de la Fuentecilla, s/n
E-28110 Algete (Madrid)
Tel.: [phone]
Telefax: [phone]

Sweden

GRUNDFOS AB
Box 63, Angeredsvinkeln 9
S-424 22 Angered
Tel.: [phone]
Telefax: [phone]

Switzerland

GRUNDFOS Pumpen AG
Bruggacherstrasse 10
CH-8117 Fällanden/ZH
Tel.: [phone]
Telefax: [phone]

Tai wan

GRUNDFOS Pumps (Taiwan)
Ltd.
14, Min-Yu Road
Tunglo Industrial Park
Tunglo, Miao-Li County
Tai wa n , R. O.C .
Phone: [phone]
Telefax: [phone]

Thailand

GRUNDFOS (Thailand) Ltd.
947/168 Moo 12, Bangna-Trad
Rd., K.M. 3,
Bangna, Phrakanong
Bangkok 10260
Phone: [phone] ... 91
Telefax: [phone] ... 6

Tur key

GRUNDFOS POMPA SAN. ve
TIC. LTD. STI
Bulgurlu Caddesi no. 32
TR-81190 Üsküdar Istanbul
Phone: +90 - 216-4280 306
Telefax: +90 - 216-3279 988

United Arab Emirates

GRUNDFOS Gulf Distribution
P.O. Box 16768
Jebel Ali Free Zone
Dubai
Phone: [phone]
Telefax: [phone]

United Kingdom

GRUNDFOS Pumps Ltd.
Grovebury Road
Leighton Buzzard/Beds. LU7 8TL
Phone: [phone]
Telefax: [phone]

U.S.A .

GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: [phone]
Telefax: [phone]

Addresses revised 12.08.2004

Being responsible is our foundation

Thinking ahead makes it possible

Innovation is the essence

96496966 0904

Repl. 96496966 0104

www.grundfos.com

30