Grundfos CM User manual

CM
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
Installation and operating instructions
http://net.grundfos.com/qr/i/95121197

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Table of contents
CM
English (GB)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
 (BG)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
eština (CZ)
Montážní a provozní návod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Deutsch (DE)
Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Dansk (DK)
Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Eesti (EE)
Paigaldus- ja kasutusjuhend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Español (ES)
Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . 79
Suomi (FI)
Asennus- ja käyttöohjeet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Français (FR)
Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
 (GR)
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Hrvatski (HR)
Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Magyar (HU)
Telepítési és üzemeltetési utasítás. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Italiano (IT)
Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Lietuviškai (LT)
rengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Latviešu (LV)
Uzstdšanas un ekspluatcijas instrukcija. . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Nederlands (NL)
Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Polski (PL)
Instrukcja montau i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Português (PT)
Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Table of contents
4
CM
Român(RO)
Instruciuni de instalare i utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Srpski (RS)
Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Svenska (SE)
Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Slovensko (SI)
Navodila za montažo in obratovanje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Slovenina (SK)
Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Türkçe (TR)
Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
 (UA)
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
中文 (CN)
安装和使用说明书. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
日本語(JP)
取扱説明書 .........................................................331
한국어 (KO)
설치 및 작동 지침 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343
Bahasa Indonesia (ID)
Petunjuk pengoperasian dan pemasangan . . . . . . . . . . . . . . . . . . . . . . . . . . 355
(AR)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

English (GB)
5
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 5
2. Introduction 6
3. Delivery and handling 6
4. Applications 6
5. Identification 6
5.1 Nameplates for pump 6
5.2 Nameplate for motor 7
6. Mechanical installation 7
6.1 Installation of pump 7
6.2 Pipework 8
6.3 Alternative connection positions 9
6.4 Terminal box positions 9
6.5 Avoiding condensation in the motor 9
7. Electrical installation 10
7.1 Power supply cable 10
7.2 Motor protection 10
7.3 Electrical connection 10
7.4 Frequency converter operation 10
8. Startup 11
8.1 Non-self-priming pumps 11
8.2 Self-priming pumps 11
8.3 Checking the direction of rotation 12
9. Maintenance 12
9.1 Frost protection 12
9.2 Cleaning 12
10. Service 13
11. Technical data 13
11.1 Enclosure class 13
11.2 Sound pressure level 13
11.3 Ambient temperature 13
11.4 Maximum system pressure and
permissible liquid temperature 14
11.5 Minimum inlet pressure 14
11.6 Maximum inlet pressure 14
12. Fault finding 15
13. Further product information 16
13.1 Service documentation 16
14. Disposal 16
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
The use of this product requires
experience with and knowledge of the
product.
Persons with reduced physical, sensory or
mental capabilities must not use this
product, unless they are under supervision
or have been instructed in the use of the
product by a person responsible for their
safety.
Children must not use or play with this
product.
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)
6
2. Introduction
This manual describes the installation and operation
of Grundfos CM pumps.
3. Delivery and handling
The pumps are delivered from factory in a packaging
specially designed for manual transport or transport
by forklift truck or a similar vehicle.
4. Applications
The pumps are horizontal, multistage centrifugal
pumps designed for pumping of clean, thin and
non-flammable liquids, not containing solid particles
or fibres that may attack the pump mechanically or
chemically.
5. Identification
5.1 Nameplates for pump
The pump name plates are positioned on the motor
fan cover or terminal box.
5.1.1 Nameplate with pump data
The data and information on the pump nameplate
are described in the table below. See the nameplate
in fig. 1on page 380.
5.1.2 Nameplate with approval marks
The data and information on the pump nameplate
are described in the table below. See the nameplate
in fig. 2on page 380.
Note
In order to ensure safe transport, we
recommend that you transport the pumps
with suitable lifting tools.
Warning
The pump must not be used for the
transfer of flammable or toxic liquids.
Pos. Description
1 Pump type
2 Pump model
3 Maximum ambient temperature
4 Temperature class
5 Minimum efficiency index
6 Maximum system pressure
7 Maximum liquid temperature
8 Hydraulic efficiency at best efficiency point
9 Insulation class
10 Motor protection
11 Rated flow
12 Head at rated flow
13 Maximum head
Pos. Description
1CEmark
2 EAC mark
3 PSE mark
4 cULus mark
5ULmark
6 cURus mark
7 Company name and address
8 Country of manufacture

English (GB)
7
5.2 Nameplate for motor
The motor name plate is positioned on the motor
cooling fins.
The data and information on the motor nameplate
are described in the table below. See the nameplate
in fig. 3on page 380.
6. Mechanical installation
Before installing the pump, check that the pump type
and parts are as ordered.
6.1 Installation of pump
Install the pump on a plane surface using the
mounting holes in the motor base plate and a
minimum of four bolts. Tighten each of the four bolts
to a torque of 10 Nm.
Install the pump so that air locks are avoided in the
pump housing and pipework.
Figure 1and the table below show the permissible
pump positions.
Fig. 1 Pump positions
●Mounting in this position is allowed.
Install the pump so that inspection, maintenance and
service can easily be performed.
Install the pump in a well-ventilated location.
Pos. Description
1 Capacitor size and voltage
2 50 Hz motor efficiency at rated work point
3 50 Hz power factor
4 50 Hz output power in kW
5 Frequency
6 Number of phases
7 50 Hz output power in hp
8 50 Hz maximum current
9 50 Hz full-load current
10 50 Hz rated voltage
11 Motor type
12 50 Hz rated speed
13 Frequency
14 60 Hz output power in kW
15 NEMA enclosure class
16 60 Hz output power in hp
17 60 Hz power factor
18 60 Hz motor efficiency at rated work point
19 Part number
20 Factory code
21 Production date (year and week)
22 Country of origin
23 60 Hz rated voltage
24 60 Hz full-load current
25 60 Hz maximum current
26 60 Hz rated speed
27 IEC duty cycle
28 Number of poles
29 IEC enclosure class
30 Insulation class
31 NEMA enclosure type
32 Motor duty class
33 Maximum ambient temperature
34 NEMA locked-rotor code
35 NEMA design class
37 CC122B mark
38 CE mark
39 cURus mark
Warning
When pumping hot or cold liquids, make
sure that persons cannot accidentally
come into contact with hot or cold
surfaces.
TM05 6389 4712
Pump
position
Non-self-priming
pumps
Self-priming
pumps
1- -
2-
3-
4
5- -
6
Up
Floor

English (GB)
8
6.2 Pipework
We recommend that you fit isolating valves on either
side of the pump. It is thus not necessary to drain the
system if the pump needs service.
If the pump is installed above the liquid level, a
non-return valve must be fitted in the suction pipe
below the liquid level. See fig. 4.
If the pump is to be used for pumping rainwater or
well water, we recommend that you fit a filter to the
inlet of the suction pipe.
The pump must not be stressed by the pipework.
Install the pipes according to the design
requirements given in EN ISO 13480-3:2012.
Tolerances must comply with EN ISO 13920:1996,
class C.
The pipework must be correctly sized taking due
account of the pump inlet pressure.
Install the pipes so that air locks are avoided,
especially on the suction side of the pump. See fig.
2.
Fig. 2 Pipework
6.2.1 Pipe connection (non-self-priming pumps)
Fig. 3 Suction and discharge ports
6.2.2 Pipe connection (self-priming pumps)
The pump must be installed correctly to ensure that it
can self-prime.
Take the following precautions:
See fig. 4.
• The minimum height from the centre of the
suction port to the first tapping point (H1) must be
observed.
If a pressure manager is installed in the system,
H1is the height from the centre of the pump
suction port to the pressure manager.
Minimum heights appear from the table below.
• The suction pipe must be at least 0.5 metres
below the liquid level (H3).
We recommend that you install a filling plug in the
discharge pipe. This facilitates liquid filling before
startup. See fig. 4, pos. A.
Note
Self-priming pumps:
We recommend an opening pressure of
the non-return valve which is lower than
0.05 bar. Otherwise the additional
resistance will reduce the suction
capability of the pump.
TM04 0338 0608
Caution
Take care not to damage the pump when
connecting the suction and discharge
pipes.
Torque: 50-60 Nm. The stated torque must
not be exceeded.
TM04 0358 1008
Note
For optimum suction capability, the pump
must be located near the well or tank to
ensure that the suction pipe is as short as
possible. This will reduce the self-priming
time, especially in the case of a high
suction lift.
Discharge port
Suction port

English (GB)
9
Fig. 4 Recommended pipework for a
self-priming pump
6.3 Alternative connection positions
The pump is available with various connection
positions on special request. See fig. 5.
Fig. 5 Alternative connection positions
6.4 Terminal box positions
The pump is available with various terminal box
positions on special request. See fig. 6.
Fig. 6 Terminal box positions
6.5 Avoiding condensation in the motor
If the liquid temperature falls below the ambient
temperature, condensation may form in the motor
during standstill. Condensation can occur in moist
surroundings or areas with high humidity.
In such cases, use a motor suitable for condensing
environments such as an IPX5 motor available from
Grundfos.
Alternatively, open the bottom drain hole in the motor
flange by removing the plug. See fig. 7. This reduces
the motor enclosure class to IPX5.
Fig. 7 Motor drain plug
The open drain hole helps prevent condensation in
the motor as it makes the motor self-venting and
allows water and humid air to escape.
When you install the pump outdoors, provide the
motor with a cover to avoid condensation. See fig. 8.
Fig. 8 Examples of covers (not supplied by
Grundfos)
TM05 8415 2313
Suction lift
(H2)
[m]
Minimum height
(H1)
[m]
40.2
50.35
60.5
70.6
80.7
TM03 8709 1008
Note
Self-priming pumps:
These pumps are only available with the
discharge port pointing upwards, i.e. in the
same direction as the filling hole.
H 3
H 2
H 1
H 1
A
TM04 0357 1008TM06 3860 1015
Pos. Description
1 Motor drain plug
TM05 3496 3512
1

English (GB)
10
7. Electrical installation
Carry out the electrical connection according to local
regulations.
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
7.1 Power supply cable
In order to comply with the EN 60335-1 standard, the
power supply cable must as minimum be rated for an
operating temperature of 105 °C (221 °F).
7.2 Motor protection
Single-phase motors, 1 x 115 / 230 V, 60 Hz
These motors do not incorporate motor protection
and must be connected to a motor-protective circuit
breaker which can be manually reset.
Set the motor-protective circuit breaker to maximum
1.15 x I1/1.
Other single-phase motors
These motors have built-in current- and
temperature-dependent motor protection in
accordance with IEC 60034-11 and require no further
motor protection. The motor protection is of the TP
211 type which reacts to both slow- and quick-rising
temperatures. The motor protection is automatically
reset.
Three-phase motors up to 3 kW
These motors must be connected to a
motor-protective circuit breaker which can be
manually reset.
Set the motor-protective circuit breaker to maximum
1.15 times full-load current.
Three-phase motors of 3 kW and up
These motors have built-in thermistors (PTC)*. The
thermistors are designed according to DIN 44082.
The motor protection is of the TP 211 type which
reacts to both slow- and quick-rising temperatures.
* Applies only to motors for the following supply
voltages:
• 3 x 200 V / 346 V, 50 Hz
• 3 x 200-220 V / 346-380 V, 60 Hz
• 3 x 220-240 V / 380-415 V, 50 Hz.
Motors for other supply voltages must be connected
to a motor-protective circuit breaker as described for
three-phase motors up to 3 kW.
7.3 Electrical connection
Carry out the electrical connection as shown in the
diagram inside the terminal box cover.
Fig. 9 Wiring diagram
7.4 Frequency converter operation
You can connect three-phase motors 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.
* MG 71- and MG 80-based motors with phase
insulation are available on request.
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 supplier or Grundfos.
Warning
The electrical connection must be carried
out in accordance with local regulations.
Before starting work on the pump, switch
off the power supply. Make sure that the
power supply cannot be accidentally
switched on.
The pump must be connected to an
external all-pole mains switch according to
local regulations.
The product must be earthed and
protected against indirect contact in
accordance with local regulations.
Wires connected to supply terminals, must
be separated from each other and from the
supply by reinforced insulation.
TM03 8781 1008
Caution
MG 71- and MG 80-based motors have no
phase insulation* and must therefore be
protected against voltage peaks higher
than 650 V (peak value) between the
supply terminals.
Note
Self-priming pumps only:
If the pump is connected to a frequency
converter, operation at low speed may
cause the internal recirculation valve to
open. This will result in a drop in pressure
and flow.