Grundfos MAGNA3 25-100 (N) User manual

GRUNDFOS INSTRUCTIONS
MAGNA3
Installation and operating instructions

2

3
Table of contents
MAGNA3
English (US)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Español (ES)
Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Français (FR)
Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

English (US)
4
English (US) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Limited warranty 5
2. Symbols used in this document 5
3. General information 6
3.1 Applications 6
3.2 Pumped liquids 6
3.3 Operating conditions 7
3.4 Frost protection 7
3.5 Insulating shells 7
3.6 Non-return valve 7
3.7 Nameplate 8
3.8 Radio communication 9
3.9 Tools 9
4. Mechanical installation 9
4.1 Installing the pump 9
4.2 Positioning 10
4.3 Control box positions 10
4.4 Changing the control box position 11
5. Electrical installation 12
5.1 Supply voltage 12
5.2 Connection to the power supply 13
5.3 Connection diagram 14
5.4 Connection to external controllers 14
5.5 Input/output communication 15
5.6 Priority of settings 17
6. First start-up 18
7. Settings 19
7.1 Overview of settings 19
8. Menu overview 20
9. Control panel 21
10. Menu structure 21
11. "Home" menu 21
12. "Status" menu 22
13. "Settings" menu 22
13.1 Setpoint 22
13.2 Operating mode 23
13.3 Control mode 23
13.4 FLOWLIMIT 27
13.5 Automatic Night Setback 27
13.6 Relay outputs 28
13.7 Setpoint influence 28
13.8 Bus communication 29
13.9 General settings 29
14. "Assist" menu 33
14.1 Assisted pump setup 33
14.2 Setting of date and time 33
14.3 Multi-pump setup 33
14.4 Setup, analog input 33
14.5 Description of control mode 33
14.6 Assisted fault advice 33
14.7 Wireless GENIair 33
14.8 Multi-pump function 33
15. Selection of control mode 34
16. Fault finding 36
16.1 Grundfos Eye operating indications 36
16.2 Signalling communication with remote control 36
16.3 Fault finding 37
17. Sensor 38
17.1 Sensor specifications 38
18. Accessories 39
18.1 Grundfos GO Remote 39
18.2 Communication 39
18.3 Fitting the CIM module 40
19. Technical data 41
20. Disposal 41
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.

5
English (US)
1. Limited warranty
Products manufactured by GRUNDFOS PUMPS CORPORATION
(Grundfos) are warranted to the original user only to be free of
defects in material and workmanship for a period of 24 months
from date of installation, but not more than 30 months from date
of manufacture. Grundfos' liability under this warranty shall be
limited to repairing or replacing at Grundfos' option, without
charge, F.O.B. Grundfos' factory or authorized service station,
any product of Grundfos' manufacture. Grundfos will not be liable
for any costs of removal, installation, transportation, or any other
charges which may arise in connection with a warranty claim.
Products which are sold but not manufactured by Grundfos are
subject to the warranty provided by the manufacturer of said
products and not by Grundfos' warranty. Grundfos will not be
liable for damage or wear to products caused by abnormal
operating conditions, accident, abuse, misuse, unauthorized
alteration or repair, or if the product was not installed in
accordance with Grundfos' printed installation and operating
instructions.
To obtain service under this warranty, the defective product must
be returned to the distributor or dealer of Grundfos' products from
which it was purchased together with proof of purchase and
installation date, failure date, and supporting installation data.
Unless otherwise provided, the distributor or dealer will contact
Grundfos or an authorized service station for instructions.
Any defective product to be returned to Grundfos or a service
station must be sent freight prepaid; documentation supporting
the warranty claim and/or a Return Material Authorization must
be included if so instructed.
GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES, LOSSES, OR EXPENSES
ARISING FROM INSTALLATION, USE, OR ANY OTHER
CAUSES. THERE ARE NO EXPRESS OR IMPLIED
WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND
THOSE WARRANTIES DESCRIBED OR REFERRED TO
ABOVE.
Some jurisdictions do not allow the exclusion or limitation of
incidental or consequential damages and some jurisdictions do
not allow limit actions on how long implied warranties may last.
Therefore, the above limitations or exclusions may not apply to
you. This warranty gives you specific legal rights and you may
also have other rights which vary from jurisdiction to jurisdiction.
2. Symbols used in this document
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.
Warning
Risk of dropping objects which may cause
personal injury.
Warning
Escaping vapor involves the risk of personal
injury.
Caution
If these safety instructions are not observed,
it may result in malfunction or damage to the
equipment.
Note
Note
Notes or instructions that make the job easier
and ensure safe operation.

English (US)
6
3. General information
The Grundfos MAGNA3 is a complete range of circulator pumps
with integrated controller enabling adjustment of pump
performance to the actual system requirements. In many
systems, this will reduce the power consumption considerably,
reduce noise from thermostatic radiator valves and similar fittings
and improve the control of the system.
The desired head can be set on the pump control panel.
3.1 Applications
The Grundfos MAGNA3 is designed for circulating liquids in the
following systems:
• heating systems
• domestic hot-water systems
• air-conditioning and cooling systems.
The pump can also be used in the following systems:
• ground source heat pump systems
• solar-heating systems.
3.2 Pumped liquids
The pump is suitable for thin, clean, non-aggressive and
non-explosive liquids, not containing solid particles or fibers that
may attack the pump mechanically or chemically.
In heating systems, the water should meet the requirements of
accepted standards on water quality in heating systems.
In domestic hot-water systems, we recommend to use MAGNA3
pumps only for water with a degree of hardness lower than
approx. 14 °dH.
In domestic hot-water systems, we recommend to keep the liquid
temperature below 150 °F (+65 °C) to eliminate the risk of lime
precipitation.
Fig. 1 Pumped liquids
3.2.1 Glycol
The pump can be used for pumping water/ethylene glycol
mixtures up to 50 %.
Maximum viscosity: 50 cSt ~ 50 % water / 50 % ethylene glycol
mixture at +14 °F (-10 °C).
The pump has a power-limiting function that protects against
overload.
The pumping of glycol mixtures will affect the max. curve and
reduce the performance, depending on the water/ethylene glycol
mixture and the liquid temperature.
To prevent the ethylene glycol mixture from degrading, avoid
temperatures exceeding the rated liquid temperature and
minimize the operating time at high temperatures.
It is important to clean and flush the system before the ethylene
glycol mixture is added.
To prevent corrosion or lime precipitation, check and maintain the
ethylene glycol mixture regularly. If further dilution of the supplied
ethylene glycol is required, follow the glycol supplier's
instructions.
Warning
Do not use the pump for flammable liquids, such
as diesel oil and gasoline.
Warning
Do not use the pump for aggressive liquids, such
as acids and sea water.
TM05 2857 0612
Max. 95 % RH
Enclosure Type 2
Note
Note
Additives with a density and/or kinematic
viscosity higher than those/that of water will
reduce the hydraulic performance.

7
English (US)
3.3 Operating conditions
Fig. 2 Operating conditions
3.3.1 Liquid temperature
See fig. 2, pos. 1.
Continuously: +14 °F to +230 °F (-10 °C to +110 °C).
Domestic hot-water systems:
• Up to +150 °F (+65 °C).
3.3.2 System pressure
See fig. 2, pos. 2.
The maximum permissible system pressure is stated on the pump
nameplate.
3.3.3 Ambient temperature
See fig. 2, pos. 3.
+32 °F to +104 °F (0 °C to +40 °C).
The control box is air-cooled. Therefore, it is important that the
maximum permissible ambient temperature is not exceeded
during operation.
During transport: -40 °F to +158 °F (-40 °C to +70 °C).
3.3.4 Sound pressure level
See fig. 2, pos. 4.
The sound pressure level of the pump is lower than 43 dB(A).
3.3.5 Approvals
• Conforms to ANSI/UL Standard 778.
• Certified to CAN/CSA Standard C22.2 No. 108.
• The protective earth (ground) symbol identifies any
terminal which is intended for connection to an external
conductor for protection against electric shock in case of a
fault, or the terminal of a protective earth (ground) electrode.
3.4 Frost protection
3.5 Insulating shells
Insulating shells are available for single-head pumps only.
The heat loss from the pump and pipework can be reduced by
insulating the pump housing and the pipework. See fig. 3 and
fig. 10.
• Insulating shells for pumps in heating systems are supplied
with the pump; see fig. 3.
• For pumps in air-conditioning and cooling systems (down to
+14 ° (-10 °C)) it is required to apply a silicon sealant to the
internal contours of the shell in order to eliminate any air gaps
and prevent condensation between the insulation shell and
pump housing. Alternatively, the pump can also be insulated
manually in accordance with standard insulating requirements
for heating and cooling systems (fig. 10).
The fitting of insulating shells will increase the pump dimensions.
Fig. 3 Fitting insulating shells to the pump
3.6 Non-return valve
If a non-return valve is fitted in the pipe system (fig. 4), it must be
ensured that the set minimum discharge pressure of the pump is
always higher than the closing pressure of the valve. This is
especially important in proportional-pressure control mode
(reduced head at low flow). The closing pressure of a single
non-return valve is accounted for in the pump settings as the
minimum head delivered is 5 ft (1.5 m).
Fig. 4 Non-return valve
TM05 7662 1413
Caution
If the pump is not used during periods of frost,
necessary steps must be taken to prevent frost
bursts.
Note
Note
Additives with a density and/or kinematic
viscosity higher than those/that of water will
reduce the hydraulic performance.
Min./Max.
+14 °F - 230 °F
(-10 °C - +110 °C)
175 psi (12 bar)
1
2
3
4
+32 to +104 °F
(0 to +40 °C)
< 43 dB(A)
Note
Note
Limit the heat loss from the pump housing and
pipework.
TM05 2859 0612
Caution
Do not insulate the control box or cover the
control panel.
TM05 3055 0912

English (US)
8
3.7 Nameplate
The pump nameplate provides the following information:
Fig. 5 Example of nameplate
TM05 6381 4612
RISQUE DE CHOC ELECTRIQUE. HORS DES EQUIPEMENT AVANT ENLEVEMENT DE LA COUVERTURE ET D’ENTRENTIEN. POUR
LE RECCORDEMENT D’ALIMENTATION, EMPLOYEZ DES FILS QUI RESISTENT AU MOINS A 90 °C UTILISEZ UNIQUEMENT DES
CONDUCTEURS DE CUIVRE. POUR RE’DUIRE LES RISQUES DE CHOC E’LECTRIQUE, CONSULTES LE MANUEL D’INSTRUCTIONS
POUR UNE INSTALLATION CORRECTE. EMPLOYER UNIQUEMENT A L’INTERIEUR.
TYPE 2
BOITIER DE TYPE 2
THERMALLY PROTECTED
Nonsubmersible Pump
RISK OF ELECTRIC SHOCK. DE-ENERGIZE EQUIPMENT BEFORE REMOVAL OF COVER & SERVICING. FOR SUPPLY
CONNECTION USE COPPER WIRE SUITABLE FOR 90 °C OR EQUIVALENT. THIS PUMP HAS NOT BEEN INVESTIGATED FOR USE
IN SWIMMING POOL OR MARINE AREAS. TO REDUCE THE RISK OF ELECTRIC SHOCK, SEE INSTRUCTION MANUAL FOR
PROPER INSTALLATION; ACCEPTABLE FOR INDOOR USE ONLY.
PSI
For use with maximum 230° F water
Contains FCC ID: OG3-RADIOM01-2G4
Pos. Description
1 Product name
2 Model
3 Production code (year and week)
4 Serial number
5 Product number
6 Enclosure type
7 Energy Efficiency Index (EEI)
8 Part (according to EEI)
9 TF-class
10 Minimum current [A]
11 Maximum current [A]
12 Minimum power [W]
13 Maximum power [W]
14 Maximum pressure
15 Voltage [V] and frequency [Hz]
16 QR (Quick Response) code
17 Approvals (nameplate)
18 Assembled in USA

9
English (US)
3.8 Radio communication
The wireless radio in this product is class B.
Intended use
This product incorporates a radio for remote control.
The product can communicate with the Grundfos Go Remote and
with other MAGNA3 pumps of the same type via the built-in radio.
Only Grundfos-approved external antennae may be connected to
this product, and only by a Grundfos-approved installer.
3.9 Tools
Fig. 6 Recommended tools
4. Mechanical installation
4.1 Installing the pump
The MAGNA3 is designed for indoor installation.
The pump must be installed in such a way that it is not stressed
by the pipework.
The pump may be suspended direct in the pipes, provided that
the pipework can support the pump.
Twin-head pumps are prepared for installation on a mounting
bracket or base plate.
To ensure adequate cooling of motor and electronics, the
following must be observed:
• Position the pump in such a way that sufficient cooling is
ensured.
• The temperature of the ambient air must not exceed +104 °F
(+40 °C).
TM05 6472 4712
Pos. Tool Size
1 Screwdriver, straight slot 1.2 x 8.0 mm
2 Screwdriver, straight slot 0.6 x 3.5 mm
3 Screwdriver, torx bit TX20
4 Hexagon key 5.0 mm
5 Open end wrench Depending on PN size
6 Wire cutter
7Pipewrench
1.2 x 8.0 TX200.6 x 3.5 5.0
1234
567
Warning
Observe local regulations setting limits for
manual lifting or handling.
Step Action Illustration
1
Arrows on the pump housing
indicate the liquid flow direction
through the pump. The liquid
flow direction can be horizontal
or vertical, depending on the
control box position.
TM05 2862 0612
2
Close the isolating valves and
make sure that the system is not
pressurized during the
installation of the pump.
TM05 2863 0612
3Mount the pump with gaskets in
the pipework.
TM05 2864 0612
4
Fit bolts and nuts. Use the right
size of bolts according to system
pressure.
TM05 2865 0612

English (US)
10
4.2 Positioning
Always install the pump with horizontal motor shaft.
• Pump installed correctly in a vertical pipe. See fig. 7, pos. A.
• Pump installed correctly in a horizontal pipe. See fig. 7, pos. B.
• Do not install the pump with vertical motor shaft. See fig. 7,
pos. C and D.
Fig. 7 Pump installed with horizontal motor shaft
4.3 Control box positions
To ensure adequate cooling, the control box must be in horizontal
position with the Grundfos logo in vertical position. See fig. 8.
Fig. 8 Pump with control box in horizontal position
If the pump head is removed before the pump is installed in the
pipework, pay special attention when fitting the pump head to the
pump housing:
1. Gently lower the pump head with rotor shaft and impeller into
the pump housing.
2. Make sure that the contact face of the pump housing and that
of the pump head are in contact before the clamp is tightened.
See fig. 9.
Fig. 9 Fitting the pump head to the pump housing
TM05 2866 0712
AB
CD
TM05 2915 0612TM05 5837 4112

11
English (US)
4.4 Changing the control box position
Warning
The warning symbol on the clamp holding the
pump head and pump housing together indicates
that there is a risk of personal injury. See specific
warnings below.
Warning
When loosening the clamp, do not drop the pump
head.
Warning
Risk of escaping vapor.
Step Action Illustration
1
Loosen the screw in the clamp
holding the pump head and
pump housing together.
Warning: If the screw is
loosened too much, the pump
head will be completely
disconnected from the pump
housing.
TM05 2867 0612
2
Carefully rotate the pump head
to the desired position.
If the pump head is stuck,
loosen it with a light blow of a
rubber mallet.
TM05 2868 0612
3
Position the control box in
horizontal position so that the
Grundfos logo is in vertical
position. The motor shaft must
be horizontal.
TM05 2869 0612
4
Due to the drain hole in the
stator housing, position the gap
of the clamp as shown in step
4a, 4b, 4c or 4d.
TM05 2870 0612
4a
Single-head pump.
Position the clamp so that the
gap points towards the arrow.
It can be in position 3 or
9 o’clock.
TM05 2918 0612 - TM05 2871 0612
4b
Single-head pump.
Note: The gap of the clamp can
also be in position 6 o’clock for
the following pump sizes:
• MAGNA3 65-XX
• MAGNA3 80-XX
• MAGNA3 100-XX.
TM05 2899 1912
4c
Twin-head pump.
Position the clamps so that the
gaps point towards the arrows.
They can be in position 3 or
9o’clock.
TM05 2917 0612 - TM05 2873 0612
4d
Twin-head pump.
Note: The gap of the clamp can
also be in position 6 o’clock for
the following pump sizes:
• MAGNA3 65-XX
• MAGNA3 80-XX
• MAGNA3 100-XX.
TM05 2897 1912
6
Fit and tighten the screw
holding the clamp to minimum
6 ± 0.7 ft-lbs (8 ± 1 Nm).
TM05 2872 0612
7
Fit the insulating shells.
Note: For air conditioning and
cooling systems a silicone
sealant must be applied inside
the insulation shell to eliminate
all air gaps and prevent
condensation between the
pump housing and insulation
shell. Alternatively, the pump
may be insulated manually in
accordance with standard
insulation practices for cooling
applications.
TM05 2874 0412
Caution
If insulating the pump manually, do not insulate
the control box or cover the control panel.
Step Action Illustration

English (US)
12
5. Electrical installation
Carry out the electrical connection and protection according to
local regulations.
Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
• If rigid conduit is to be used, the hub must be connected to the
conduit system before it is connected to the terminal box of the
pump.
• The pump must be connected to an external mains switch.
• The pump requires no external motor protection.
• The motor incorporates thermal protection against slow
overloading and blocking.
• When switched on via the power supply, the pump will start
pumping after approx. 5 seconds.
5.1 Supply voltage
1 x 115 V ± 10 %, 50/60 Hz, PE.
1 x 208-230 V ± 10 %, 50/60 Hz, PE.
See pump nameplate for rated supply voltage
The voltage tolerances are intended for mains voltage variations.
They should not be used for running pumps at other voltages than
those stated on the nameplate.
Warning
Never make any connections in the pump control
box unless the power supply has been switched
off for at least 5 minutes.
Warning
The pump must be connected to an external
mains switch with a contact separation of at least
1/8 inch (3 mm) in each pole.
The ground terminal of the pump must be earth
ground. Grounding or neutralization can be used
for protection against indirect contact.
If the pump is connected to an electric
installation where a Ground Fault Circuit
Interrupter (GFCI) is used as additional
protection, this circuit interrupter must trip out
when ground fault currents with DC content
(pulsating DC) occur.
Note
Note
The number of starts and stops via the power
supply must not exceed four times per hour.

13
English (US)
5.2 Connection to the power supply
Fig. 10 Insulation of pump housing and pipework
Step Action Illustration
1
Remove the front
cover from the
control box.
TM05 2875 0612
2
Locate the power
supply plug and
conduit adapter in
the box supplied
with the pump.
TM05 2876 0612
3
Connect the
conduit adapter to
the control box.
TM05 2877 0612
4
Pull the power
supply cable
through the
conduit adapter.
TM05 2878 0612
5
Strip the cable
conductors as
illustrated.
TM05 5534 3812
6
Connect the cable
conductors to the
power supply plug.
L - L or L1
Ground - Ground
N - N or L2
TM05 2880 0612
7
Insert the power
supply plug into
the male plug in
the pump control
box.
TM05 2881 0612
8
Tighten the
conduit adapter.
Refit the front
cover.
TM05 2882 0612
TM05 5549 3812
Step Action Illustration

English (US)
14
5.3 Connection diagram
Fig. 11 Example of typical connection, 1 x 230 V ± 10 %, 50/60 Hz
5.4 Connection to external controllers
Fig. 12 Connection diagram
Concerning demands on signal wires and signal transmitters,
see section 19. Technical data.
Use screened cables for external on/off switch, digital input,
sensor and setpoint signals.
TM03 2397 0312
External switch
Fuse
(min. 10 A, time lag)
GFCI
Note
Note
All cables used must be connected in
accordance with local regulations.
TM05 2901 1912 - TM05 3343 1212
Max.
250 V AC
2 A AC1
Min.
5 V DC
20 mA
Max.
24 V DC
22 mA
0 - 10 V DC
4 - 20 mA
I
NC N0 C
S/S
M
I
M
A
IN
24V
Vcc Signal
Vcc Signal
3
2
1
Warning
Wires connected to supply terminals, outputs
NC, NO, C and start/stop input must be separated
from each other and from the supply by
reinforced insulation.
Note
Note
All cables used must be heat-resistant up to
+185 °F (+85 °C).

15
English (US)
5.5 Input/output communication
• Relay outputs
Alarm, ready and operating indication via signal relay.
• Digital input
– Start/Stop (S/S)
– Min. curve (MI)
– Max. curve (MA).
• Analog input
0-10 V or 4-20 mA control signal.
To be used for external control of the pump or as sensor input
for the control of the external setpoint.
The 24 V supply from pump to sensor is optional and is
normally used when an external supply is not available.
5.5.1 Relay outputs
See fig. 12, pos. 1.
The pump incorporates two signal relays with a potential-free
changeover contact for external fault indication.
The function of the signal relay can be set to "Alarm", "Ready" or
"Operation" on the pump control panel or with the Grundfos GO
Remote.
The relays can be used for outputs up to 250 V and 2 A.
Fig. 13 Relay output
The functions of the signal relays appear from the table below:
TM05 3338 1212
Contact symbol Function
NC Normally closed
NO Normally open
C Common
NC NO C NC NO C
Alarm
Operation
Relay 1 Relay 2
Signal relay Alarm signal
Not activated:
• The power supply has been switched off.
• The pump has not registered a fault.
Activated:
• The pump has registered a fault.
Signal relay Ready signal
Not activated:
• The pump has registered a fault and is
unable to run.
Activated:
• The pump has been set to stop, but is ready
to run.
• The pump is running.
Signal relay Operating signal
Not activated:
• The pump is not running.
Activated:
• The pump is running.
132
NC NO C
132
NC NO C
12 3
NC NO C
132
NC NO C
132
NC NO C
12 3
NC NO C
132
NC NO C
132
NC NO C
12 3
NC NO C

English (US)
16
5.5.2 Digital inputs
See fig. 12, pos. 2.
The digital input can be used for external control of start/stop or
forced max. or min. curve.
If no external on/off switch is connected, the jumper between
terminals Start/Stop (S/S) and frame ( ) should be maintained.
This connection is the factory setting.
Fig. 14 Digital input
External start/stop
The pump can be started or stopped via the digital input.
External forced max. or min. curve
The pump can be forced to operate on the max. or min. curve via
the digital input.
Select the function of the digital input on the pump control panel
or with the Grundfos GO Remote.
5.5.3 Analog input
See fig. 12, pos. 3.
The analog input can be used for the connection of an external
sensor for measuring temperature, pressure, flow or other
parameter. See fig. 17.
It is possible to use sensor types with 0-10 V or 4-20 mA signal.
The analog input can also be used for an external signal for the
control from a BMS system or similar control system. See fig. 18.
• When the input is used for the heat energy meter, a
temperature sensor must be installed in the return pipe.
• If the pump is installed in the return pipe of the system, the
sensor must be installed in the flow pipe.
• If the constant-temperature control mode has been enabled
and the pump is installed in the flow pipe of the system, the
sensor must be installed in the return pipe.
• If the pump is installed in the return pipe of the system, the
built-in temperature sensor can be used.
TM05 3339 1212
Contact symbol Function
M
A
Max. curve
100 % speed
M
I
Min. curve
25 % speed
S/S Start/Stop
Frame connection
Start/stop
Normal duty
Note: Factory setting with
jumper between S/S and .
Stop
S/S
M
I
M
A
On/off timer
Start/stop
S/S
Q
H
S/S
Q
H
Max. curve
Normal duty
Max. curve
Min. curve
Normal duty
Min. curve
M
A
Q
H
M
A
Q
H
M
I
Q
H
M
I
Q
H

17
English (US)
The selection of sensor type (0-10 V or 4-20 mA) can be changed
on the pump control panel or with the Grundfos GO Remote.
Fig. 15 Analog input for external sensor, 0-10 V
Fig. 16 Analog input for external sensor, 4-20 mA
Fig. 17 Examples of external sensors
Fig. 18 Examples of external signal for the control via
BMS/PLC
5.6 Priority of settings
The external forced-control signals will influence the settings
available on the pump control panel or with the Grundfos GO
Remote. However, the pump can always be set to max. curve
duty or to stop on the pump control panel or with the Grundfos
GO Remote.
If two or more functions are enabled at the same time, the pump
will operate according to the setting with the highest priority.
The priority of the settings is as shown in the table below.
Example: If the pump has been forced to stop via an external
signal, the pump control panel or the Grundfos GO Remote can
only set the pump to max. curve.
As illustrated in the table, the pump does not react to external
signals (max. curve and min. curve) when it is controlled via bus.
For further details, please contact Grundfos.
TM05 3221 0612TM05 2948 0612TM05 2947 1212TM05 2888 0612
signal
sensor
Vcc
24V
I N
signal
sensor
Vcc
24V
I N
signal
sensor
Vcc
I
24V
I N
24V IN
Vcc Signal
24V
BMS
PLC
Priority
Possible settings
Pump control
panel or
Grundfos GO
Remote
External
signals Bus signal
1 Stop
2 Max. curve
3Stop
4Stop
5Max.curve
6Min.curve
7Start
8Max.curve
9Min.curve
10 Min. curve
11 Start

English (US)
18
6. First start-up
Do not start the pump until the system has been filled with liquid
and vented. Furthermore, the required minimum inlet pressure
must be available at the pump inlet. See section 19. Technical
data.
The system cannot be vented through the pump. The pump is
self-venting.
Step Action Illustration
1
Switch on the power supply to the pump.
Note: When switched on, the pump will start in
AUTOADAPT after approx. 5 seconds.
TM05 2884 0612
2
Pump display at first start-up.
After a few seconds, the pump display will change to the
start-up guide.
TM05 2885 0612
3
The start-up guide will guide you through the general
settings of the pump, such as language, date and time.
If the buttons on the pump control panel are not touched
for 15 minutes, the display will go into sleep mode.
When a button is touched, the "Home" display will appear.
TM05 2886 0612
4
When the general settings have been made, select the
desired control mode or let the pump run in AUTOADAPT.
For additional settings, see section 7.
Settings .
TM05 2887 0612

19
English (US)
7. Settings
7.1 Overview of settings
All settings can be made on the pump control panel or with the Grundfos GO Remote.
Menu Submenu Further information
Setpoint See section 13.1
Setpoint .
Operating mode See section 13.2
Operating mode .
•Normal
•Stop
•Min.
•Max.
Control mode See section 13.3
Control mode .
•AUTO
ADAPT See section 13.3.1 AUTOADAPT.
•FLOW
ADAPT See section 13.3.2 FLOWADAPT.
•Prop. press. See section 13.3.3 Proportional pressure.
•Const. press. See section 13.3.4 Constant pressure.
•Const. temp. See section 13.3.5 Constant temperature.
• Differential temperature See section 13.3.6 Differential temperature.
•Constant curve See section 13.3.7 Constant curve.
FLOWLIMIT See section 13.4 FLOWLIMIT.
•Set FLOW
LIMIT
Automatic Night Setback See section 13.5 Automatic Night Setback .
•Not active
•Active
Relay outputs See section 13.6
Relay outputs .
•Relay output 1
•Relay output 2
Setpoint influence See section 13.7
Setpoint influence .
•External setpoint function See section 13.7.1
External setpoint function .
•Temperature influence See section 13.7.2
Temperature influence .
Bus communication See section 13.8
Bus communication .
•Pump number See section 13.8.1
Pump number .
General settings See section 13.9
General settings .
•Language See section 13.9.1
Language .
•Set date and time See section 13.9.2
Set date and time .
•Units See section 13.9.3
Units .
•Enable/disable settings See section 13.9.4
Enable/disable settings .
•Delete history See section 13.9.5
Delete history .
•Define Home display See section 13.9.6
Define Home display .
•Display brightness See section 13.9.7
Display brightness .
•Return to factory settings See section 13.9.8
Return to factory settings .
•Run start-up guide See section 13.9.9
Run start-up guide .

English (US)
20
8. Menu overview
Status Settings Assist
Operating status Setpoint Assisted pump setup
Operating mode, from Operating mode Setting of pump
Control mode Control mode Setting of date and time
Pump performance FLOWLIMIT Date format, date and time
Max. curve and duty point Enable FLOW
LIMIT
function Date only
Resulting setpoint Set FLOW
LIMIT
Time only
Liquid temperature Automatic Night Setback Multi-pump setup
Speed Relay outputs Setup, analog input
Operating hours Relay output 1 Description of control mode
Power and energy consumption Relay output 2 AUTOADAPT
Power consumption Not active FLOWADAPT
Energy consumption Ready Prop. press.
Warning and alarm Alarm Const. press.
Actual warning or alarm Operation Const. temp.
Warning log Setpoint influence Differential temperature
Warning log 1 to 5 External setpoint function Constant curve
Alarm log Temperature influence Assisted fault advice
Alarm log 1 to 5 Bus communication Blocked pump
Heat energy meter Pump number Pump communication fault
Heat power General settings Internal fault
Heat energy Language Internal sensor fault
Flow rate Set date and time Dry running
Volume Select date format Forced pumping
Hours counter Set date Undervoltage
Temperature 1 Select time format Overvoltage
Temperature 2 Set time External sensor fault
Differential temp. Units
Work log SI or US units
Operating hours Customized units
Trend data Pressure
Duty point over time Differential pressure
3D showing (Q, H, t) Head
3D showing (Q, T, t) Level
3D showing (Q, P, t) Flow rate
3D showing (T, P, t) Volume
Fitted modules Temperature
Date and time Differential temp.
Date Power
Time Energy
Pump identification Enable/disable settings
Multi-pump system Delete history
Operating status Delete work log
Operating mode, from Delete heat energy data
Control mode Delete energy consumption
System performance Define Home display
Duty point Select Home display type
Resulting setpoint List of data
System identification Graphical illustration
Power and energy consumption Define Home display contents
Power consumption List of data
Energy consumption Graphical illustration
Other pump 1, multi-pump sys. Display brightness
Brightness
Return to factory settings
Run start-up guide