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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Čeština (CZ)
Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Español (ES)
Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 40
Français (FR)
Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Italiano (IT)
Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Polski (PL)
Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Русский (RU)
Паспорт, Руководство по монтажу иэксплуатации . . . . . . . . . . . . . . . . . . . 88
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

English (GB)
4
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Symbols used in this document
2. Handling
When the entire pump is to be lifted, observe the
following:
• CRK and MTR pumps fitted with a Grundfos MG
motor up to 0.75 kW should be lifted in the pump
head by means of straps or the like.
• CRK and MTR pumps fitted with a Grundfos MG
motor from 1.1 to 22 kW must be lifted by means
of the lifting eyes.
• For other motor makes than those mentioned
above, we recommend to lift the pump in the
pump head by means of straps.
1. Symbols used in this document 4
2. Handling 4
3. Applications 5
3.1 Pumped liquids 5
4. Identification 5
4.1 Nameplate for CRK and MTR 5
4.2 Type key for CRK 6
4.3 Type key for MTR, MTRE 7
5. Technical data 8
5.1 Ambient temperature 8
5.2 Maximum permissible operating pressure
and liquid temperature for the shaft seal 8
5.3 Minimum flow rate 9
5.4 Electrical data 9
5.5 Maximum number of starts 9
6. Installation 9
6.1 Pump location 9
6.2 Suction conditions 10
7. Electrical connection 11
7.1 Frequency converter operation 11
7.2 Other motor makes 11
8. Start-up 12
8.1 Before starting the pump 12
8.2 Starting the pump 12
9. Maintenance 12
9.1 Filters 13
9.2 Periodic checks 13
10. Service 13
10.1 Service kits 13
10.2 Coupling adjustment 13
11. Sound pressure level 13
12. Fault finding 14
13. Disposal 15
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.
Warning
If these instructions are not observed, it
may lead to electric shock with consequent
risk of serious personal injury or death.
Warning
The surface of the product may be so hot
that it may cause burns or 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
3. 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.
3.1 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.
4. Identification
4.1 Nameplate for CRK and MTR
Fig. 1 Example of nameplate
Warning
Do not use the pump for flammable liquids,
such as diesel oil and petrol.
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: Counter-clockwise
CW: Clockwise
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
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

English (GB)
6
4.2 Type key for CRK
*) See fig. 2.
Fig. 2 Number of chambers / impellers
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 pipework connection
Code for materials
Code for shaft seal and rubber pump parts
TM01 4991 1299
Number of
impellers
Number of
chambers

English (GB)
7
4.3 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 Suction 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)
8
5. Technical data
* Applies to pump version F
5.1 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 % x 78 % = 68.6 %
of rated output.
5.2 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. 3
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)
9
5.3 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.
Fig. 5 Minimum flow rate in relation to
temperature
Note: The pump must never operate against a
closed discharge valve.
5.4 Electrical data
See motor nameplate.
5.5 Maximum number of starts
6. Installation
6.1 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. 6 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. 7 Horizontally installed MTR with foot
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
[%]
Warning
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
Caution
For horizontally mounted pumps ensure a
sufficient sealing between pump flange
and tank. A sealing gasket will usually
suffice.
Caution
Before changing shaft seals for
horizontally mounted pumps, drain the
tank.
Caution
MTR 32, 45 and 64 pumps can only be
installed in vertical position.
Vertical Horizontal

English (GB)
10
Fig. 8 Vertical installation
Mounting flange dimensions:
6.2 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.
Fig. 9 CRK 2, 4 and MTR 1s, 1, 3, 5
Fig. 10 MTR 10, 15, 20
Fig. 11 MTR 32, 45, 64
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, 5 140 160 180 100 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
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 -
D1
D2
D3
4 x X
C
L
TM05 7223 0813TM05 7224 0813TM05 7225 0813
BA
25 mm
B
A
25 mm
A
25 mm