Grundfos CMBE User manual
CMBE
With drinking-water approved tank
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
CMBE
English (GB)
Installation and operating instructions ..................................4
Deutsch (DE)
Montage- und Betriebsanleitung .....................................24
Français (FR)
Notice d'installation et de fonctionnement...............................45
Italiano (IT)
Istruzioni di installazione e funzionamento ..............................65
Nederlands (NL)
Installatie- en bedieningsinstructies ...................................85
EU declaration of conformity .....................................105
UK declaration of conformity.....................................108
3
Table of contents
English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ............. 5
1.1 Hazard statements .............. 5
1.2 Notes ..................... 5
2. Safety instructions ............. 6
3. Product introduction ............ 8
3.1 Intended use ................. 8
3.2 Pumped liquids ................ 9
3.3 System sizing ................. 9
4. Mechanical installation ........... 9
4.1 Mounting the tank ............... 9
4.2 Adjusting the diaphragm tank pressure . ..10
4.3 Installation altitude ..............10
5. Electrical connection ............10
5.1 Cable requirements ..............11
5.2 Standard functional module, FM 200.....11
6. Startup ....................15
6.1 Flushing the system..............15
6.2 Supplement to quick guide ..........15
6.3 Priming and venting the product .......15
6.4 Starting up the booster system ........16
6.5 Shaft seal run-in................16
7. Control functions ..............16
7.1 Constant pressure ..............16
7.2 Dry-running protection ............16
7.3 Inlet pressure protection ...........17
8. Setting the product .............18
8.1 Operating panel ................18
8.2 Setpoint setting ................18
8.3 Start/stop of pump ..............18
8.4 Resetting of fault indications .........18
9. Servicing the product ............19
9.1 Cable requirements ..............19
9.2 Megging ....................19
10. Taking the product out of operation ....19
11. Fault finding .................20
11.1 Pump is not running..............20
11.2 Pump is not running..............20
11.3 Pump performance is unstable ........21
11.4 Pump runs backwards when switched off ..21
12. Technical data ................22
12.1 Operating conditions .............22
12.2 Supply voltage ................22
12.3 Overload protection ..............22
12.4 Cable requirements ..............22
13. Further product information ........23
14. Disposing of the product ..........23
15. Document quality feedback ........23
4
English (GB)
1. General information
This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and
understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not
be made by children without supervision.
Read this document before you install the
product. Installation and operation must
comply with local regulations and accepted
codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
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.
The hazard statements are structured in the following
way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
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.
5
English (GB)
2. Safety instructions
Mechanical installation
DANGER
Electric shock
Death or serious personal injury
‐In case of an insulation fault, the fault
current may be a DC or pulsating DC.
Observe national legislation about
requirements for and selection of
Residual Current Device (RCD) when
installing the product.
WARNING
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product. Make
sure that the power supply cannot be
switched on accidentally.
WARNING
Hot liquid
Death or serious personal injury
‐To avoid leakage do not overtighten
the pipe connections.
CAUTION
Sharp element
Minor or moderate personal injury
‐Wear personal protective equipment.
CAUTION
Crushing of feet
Minor or moderate personal injury
‐Wear safety shoes when moving the
product.
‐Use lifting equipment.
CAUTION
Back injury
Minor or moderate personal injury
‐Use lifting equipment.
Electrical connection
DANGER
Electric shock
Death or serious personal injury
‐In case of an insulation fault, the fault
current may be a DC or pulsating
DC.Observe national legislation about
requirements for and selection of
Residual Current Device (RCD) when
installing the product.
WARNING
Electric shock
Death or serious personal injury
‐Carry out the electrical connection in
accordance with local regulations.
WARNING
Electric shock
Death or serious personal injury
‐Check that the power plug delivered
with the product is in compliance with
local regulations.
‐The protective earth of the power outlet
must be connected to the protective
earth of the product. The plug must
therefore have the same PE
connection system as the power outlet.
If not, use a suitable adapter if allowed
by local regulations.
‐Provide protection against indirect
contact in accordance with local
regulations.
‐Make sure all earth connections are
established correctly before switching
on the power supply.
‐The user or the installer is responsible
for correct earthing and protection
according to local regulations.
‐The installer is responsible for potential
compensation.
‐Work must be carried out according
to IEC 60204-1:2016.
WARNING
Electric shock
Death or serious personal injury
‐A supply disconnecting device made
according to EN 60204-1 5.3.2 must be
provided with means permitting it to be
locked in the OFF (isolated) position.
This device must also be installed in a
position according to EN 60204-1,
5.3.4.
WARNING
Electric shock
Death or serious personal injury
‐Power cables without a plug must be
connected to a supply disconnecting
device incorporated in the fixed wiring
according to local regulations.
Cable requirements
6
English (GB)
WARNING
Electric shock
Death or serious personal injury
‐Comply with local regulations as to
cable cross-sections.
Connection terminals for inputs and outputs
DANGER
Electric shock
Death or serious personal injury
‐Make sure that the wires to be
connected to the connection groups
below are separated from each other
by reinforced insulation in their entire
lengths.
Startup
WARNING
Hot liquid
Death or serious personal injury
‐If the temperature is higher than 50 °C,
use gloves and glasses when venting
the pump to avoid risk of scalding.
WARNING
Biological hazard
Death or serious personal injury
‐Flush the pump with clean water
before first use.
Flushing the system
DANGER
Contaminated drinking water
Death or serious personal injury
‐Flush the system before starting it or
after a standstill period.
Servicing the product
DANGER
Electric shock
Death or serious personal injury
‐Switch off the power supply to the
product including the power supply for
the signal relays. Wait at least 5
minutes before you make any
connections in the terminal box.Make
sure that the power supply cannot be
switched on accidentally.
DANGER
Magnetic field
Death or serious personal injury
‐Persons with pacemaker must not
handle the motor or rotor.
WARNING
Pressurised system
Death or serious personal injury
‐Depressurise the system before you
start any work on the product. The
pumped liquid may be scalding hot and
under high pressure.
‐Drain the system or close the isolating
valves on either side of the pump.
WARNING
Biological hazard
Death or serious personal injury
‐When servicing the product, only use
Grundfos original spare parts.
Cable requirements
WARNING
Electric shock
Death or serious personal injury
‐Comply with local regulations as to
cable cross-sections.
Taking the product out of operation
WARNING
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product. Make
sure that the power supply cannot be
switched on accidentally.
WARNING
Pressurised system
Death or serious personal injury
‐Depressurise the system before you
start any work on the product. The
pumped liquid may be scalding hot and
under high pressure.
‐Drain the system or close the isolating
valves on either side of the pump.
Fault finding
WARNING
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product.Make
sure that the power supply cannot be
switched on accidentally.
7
English (GB)
WARNING
Pressurised system
Death or serious personal injury
‐Depressurise the system before you
start any work on the product. The
pumped liquid may be scalding hot and
under high pressure.
‐Drain the system or close the isolating
valves on either side of the pump.
WARNING
Biological hazard
Death or serious personal injury
‐When servicing the product, only use
Grundfos original spare parts.
Cable requirements
DANGER
Electric shock
Death or serious personal injury
‐Comply with local regulations as to
cable cross-sections.
‐Use the recommended fuse size.
3. Product introduction
TM084222
CMBE is a high-efficiency compact booster suitable
for clean water supply and pressure boosting in
domestic and light commercial applications. It
keeps a constant pressure via the integrated speed
control.
3.1 Intended use
The product has been evaluated for use in indoor
installations with:
• clean water
• drinking water.
Only use the product according to the
specifications stated in these installation
and operating instructions.
Check local regulations.
8
English (GB)
3.2 Pumped liquids
The product is suitable for pumping clean, thin, non-
aggressive, non-toxic and non-explosive liquids
without solid particles or fibres.
If the water contains sand, gravel or other
debris, there is a risk of pump blockage
and pump damage.
Please install a filter on the inlet side or
apply a floating strainer to protect the
pump.
3.3 System sizing
The system in which the CME Booster is
incorporated must be designed for the
maximum pump pressure.
The pump is by default set to not stop until it reaches
its maximum pressure.
4. Mechanical installation
DANGER
Electric shock
Death or serious personal injury
‐In case of an insulation fault, the fault
current may be a DC or pulsating DC.
Observe national legislation about
requirements for and selection of
Residual Current Device (RCD) when
installing the product.
WARNING
Electric shock
Death or serious personal injury
‐Switch off the power supply before you
start any work on the product. Make
sure that the power supply cannot be
switched on accidentally.
WARNING
Hot liquid
Death or serious personal injury
‐To avoid leakage do not overtighten
the pipe connections.
CAUTION
Sharp element
Minor or moderate personal injury
‐Wear personal protective equipment.
CAUTION
Crushing of feet
Minor or moderate personal injury
‐Wear safety shoes when moving the
product.
‐Use lifting equipment.
CAUTION
Back injury
Minor or moderate personal injury
‐Use lifting equipment.
4.1 Mounting the tank
1. Apply drinking-water approved sealant tape to the
thread of the tank.
2. Screw the tank on the pump.
3. Check the system for leakages.
4. Check the precharge pressure.
Related information
4.2 Adjusting the diaphragm tank pressure
9
English (GB)
4.2 Adjusting the diaphragm tank pressure
1. Check the precharge pressure in the diaphragm
tank. The correct precharge pressure is 0.7 times
the required outlet pressure (setpoint).
Measure the precharge pressure while
the system is pressureless.
2. Adjust the precharge pressure. Always use
nitrogen gas to refill the tanks.
Related information
4.1 Mounting the tank
9. Servicing the product
4.3 Installation altitude
The installation altitude is the height above sea level
of the installation site.
• Products installed up to 1000 m above sea level
can be loaded 100 %.
• The motors can be installed up to 3500 m above
sea level.
Motors installed more than 1000 m above
sea level must not be fully loaded due to
the low density and consequent low
cooling effect of the air.
The motor output power (P2) in relation to the altitude
above sea level is shown in the graph below.
0
60
80
90
70
100
500 1000 1500 2000 2500 3000 3500 X
P2 [%]
TM055243
Derating of motor output (P2) in relation to altitude
above sea level
Pos. Description
x Altitude [m]
Related information
12.1.4 Ambient temperature during operation
5. Electrical connection
DANGER
Electric shock
Death or serious personal injury
‐In case of an insulation fault, the fault
current may be a DC or pulsating
DC.Observe national legislation about
requirements for and selection of
Residual Current Device (RCD) when
installing the product.
WARNING
Electric shock
Death or serious personal injury
‐Carry out the electrical connection in
accordance with local regulations.
WARNING
Electric shock
Death or serious personal injury
‐Check that the power plug delivered
with the product is in compliance with
local regulations.
‐The protective earth of the power outlet
must be connected to the protective
earth of the product. The plug must
therefore have the same PE
connection system as the power outlet.
If not, use a suitable adapter if allowed
by local regulations.
‐Provide protection against indirect
contact in accordance with local
regulations.
‐Make sure all earth connections are
established correctly before switching
on the power supply.
‐The user or the installer is responsible
for correct earthing and protection
according to local regulations.
‐The installer is responsible for potential
compensation.
‐Work must be carried out according
to IEC 60204-1:2016.
WARNING
Electric shock
Death or serious personal injury
‐A supply disconnecting device made
according to EN 60204-1 5.3.2 must be
provided with means permitting it to be
locked in the OFF (isolated) position.
This device must also be installed in a
position according to EN 60204-1,
5.3.4.
10
English (GB)
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