537341 3 Grundfos Magna3 Installation And Instructions User Manual

User Manual: Pump 537341 3 Grundfos Magna3 Installation And Instructions

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English (US)

GRUNDFOS INSTRUCTIONS

MAGNA3

Installation and operating instructions

English (US)

English (US) Installation and operating instructions

Original installation and operating instructions.

CONTENTS

Page

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 war-

ranty 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 juris-

dictions do not allow limit actions on how long implied warranties

may last. Therefore, the above limitations or exclusions may not

1. Limited warranty 2

2. Symbols used in this document 3

3. General information 3

3.1 Applications 3

3.2 Pumped liquids 3

3.3 Operating conditions 4

3.4 Frost protection 4

3.5 Insulating shells 4

3.6 Non-return valve 4

3.7 Nameplate 5

3.8 Radio communication 6

3.9 Tools 6

4. Mechanical installation 6

4.1 Installing the pump 6

4.2 Positioning 7

4.3 Control box positions 7

4.4 Changing the control box position 8

5. Electrical installation 9

5.1 Supply voltage 9

5.2 Connection to the power supply 9

5.3 Connection diagram 11

5.4 Connection to external controllers 11

5.5 Input/output communication 11

5.6 Priority of settings 14

6. First start-up 15

7. Settings 16

7.1 Overview of settings 16

8. Menu overview 17

9. Control panel 18

10. Menu structure 18

11. "Home" menu 18

12. "Status" menu 18

13. "Settings" menu 19

13.1 Setpoint 19

13.2 Operating mode 19

13.3 Control mode 20

13.4 FLOWLIMIT 23

13.5 Automatic Night Setback 23

13.6 Relay outputs 23

13.7 Setpoint influence 24

13.8 Bus communication 25

13.9 General settings 25

14. "Assist" menu 27

14.1 Assisted pump setup 27

14.2 Setting of date and time 27

14.3 Multi-pump setup 27

14.4 Setup, analog input 27

14.5 Description of control mode 27

14.6 Assisted fault advice 27

14.7 Wireless GENIair 27

14.8 Multi-pump function 28

15. Selection of control mode 29

16. Fault finding 31

16.1 Grundfos Eye operating indications 31

16.2 Signalling communication with remote control 31

16.3 Fault finding 32

17. Sensor 33

17.1 Sensor specifications 33

18. Accessories 34

18.1 Grundfos GO Remote 34

18.2 Communication 34

18.3 Fitting the CIM module 35

19. Technical data 36

20. Disposal 36

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.

English (US)

apply to you. This warranty gives you specific legal rights and you

may also have other rights which vary from jurisdiction to jurisdic-

tion.

2. Symbols used in this document

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

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

Notes or instructions that make the job easier

and ensure safe operation.

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

Note

Additives with a density and/or kinematic

viscosity higher than those/that of water will

reduce the hydraulic performance.

Max. 95 % RH

Enclosure Type 2

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 electrical 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

Min./Max.

+14 °F – 230 °F

(-10 °C – +110 °C)

175 psi (12 bar)

+32 to +104 °F

(0 to +40 °C)

<43 dB(A)

Caution

If the pump is not used during periods of frost,

necessary steps must be taken to prevent frost

bursts.

Note

Additives with a density and/or kinematic

viscosity higher than those/that of water will

reduce the hydraulic performance.

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)

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)

9TF-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

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

7Pipe wrench

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

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

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

Fit bolts and nuts. Use the right

size of bolts according to system

pressure.

TM05 2865 0612

English (US)

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

TM05 2915 0612TM05 5837 4112

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

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

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

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

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

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

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

Twin-head pump.

Position the clamps so that the

gaps point towards the arrows.

They can be in position

3 or 9 o’clock.

TM05 2917 0612 - TM05 2873 0612

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

Fit and tighten the screw

holding the clamp to minimum

6 ± 0.7 ft-lbs

(8 ± 1 Nm).

TM05 2872 0612

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.

English (US)

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.

5.2 Connection to the power supply

Warning

Never make any connections in the pump control

box unless the electricity 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

Interrupt (GFCI) is used as additional protection,

this circuit breaker must trip out when ground

fault currents with DC content (pulsating DC)

occur.

Note

The number of starts and stops via the power

supply must not exceed four times per hour.

Step Action Illustration

Remove the front

cover from the

control box.

TM05 2875 0612

Locate the power

supply plug and

conduit adapter in

the box supplied

with the pump.

TM05 2876 0612

Connect the

conduit adapter to

the control box.

TM05 2877 0612

Pull the power

supply cable

through the

conduit adapter

and thread on

conduit.

TM05 2878 0612

Strip the cable

conductors as

illustrated.

TM05 5534 3812

Connect the cable

conductors to the

power supply plug.

L - L or L1

Ground - Ground

N - N or L2

TM05 2880 0612

English (US)

Fig. 10 Insulation of pump housing and pipework

Insert the power

supply plug into

the male plug in

the pump control

box.

TM05 2881 0612

Tighten the

conduit adapter.

Refit the front

cover.

TM05 2882 0612

TM05 5549 3812

English (US)

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.

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.

TM03 2397 0312

External switch

Fuse

(min. 10 A, time lag)

ELCB

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

NC NO C

S/S

24V

Vcc Signal

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

All cables used must be heat-resistant up to

+185 °F (+85 °C).

English (US)

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:

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 maintain ed.

This connection is the factory setting.

Fig. 14 Digital input

External start/stop

The pump can be started or stopped via the digital input.

TM05 3338 1212

Contact symbol Function

NC Normally closed

NO Normally open

C Common

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.

NC NO C NC NO C

Alarm

Operation

Relay 1 Relay 2

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

TM05 3339 1212

Contact symbol Function

Max. curve

100 % speed

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

On/off timer

Start/stop

S/S

English (US)

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.

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

Max. curve

Normal duty

Max. curve

Min. curve

Normal duty

Min. curve

TM05 3221 0612

signal

sensor

Vcc

24V

signal

sensor

Vcc

24V

TM05 2948 0612TM05 2947 1212TM05 2888 0612

signal

sensor

Vcc

24V

Vcc Signal

24V

BMS

PLC

English (US)

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.

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)

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

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

Pump display at first start-up.

After a few seconds, the pump display will change to the

start-up guide.

TM05 2885 0612

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

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

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 FLOWLIMIT

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)

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 FLOWLIMIT function Date only

Resulting setpoint Set FLOWLIMIT 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

English (US)

9. Control panel

Fig. 19 Control panel

10. Menu structure

The pump incorporates a start-up guide which is started at the

first start-up. After the start-up guide, the four main menus will

appear in the display. See section 6. First start-up.

1. Home

This menu shows up to four user-defined parameters with

shortcuts or a graphical illustration of a Q/H performance curve.

See section 11. "

Home

" menu.

2. Status

This menu shows the status of the pump and system as well as

warnings and alarms. See section 12. "

Status

" menu.

3. Settings

This menu gives access to all setting parameters. A detailed

setting of the pump can be made in this menu.

See section 13. "

Settings

" menu.

4. Assist

This menu enables assisted pump setup, provides a short

description of the control modes and offers fault advice.

See section 14. "

Assist

" menu.

11. "Home" menu

Navigation

Home

Press to go to the "Home" menu.

"Home" menu (factory setting)

• Shortcut to control mode settings

• Shortcut to setpoint settings

•Flow rate

•Head.

Navigate in the display with or and change between the two

shortcuts with or .

The "Home" display can be defined by the user.

See section 13.9.6

Define Home display

12. "Status" menu

Navigation

Home > Status

Press and go to the "Status" menu with .

"Status" menu

This menu offers the following status information:

•Operating status

•Pump performance

•Power and energy consumption

•Warning and alarm

•Heat energy meter

•Work log

•Fitted modules

•Date and time

•Pump identification

•Multi-pump system.

Navigate between submenus with or .

Warning

At high liquid temperatures, the pump housing

may be so hot that only the control panel should

be touched to avoid burns.

TM05 7642 1313

Button Function

Goes to the "Home" menu.

Returns to the previous action.

Navigates between main menus, displays and

digits.

When the menu is changed, the display will always

show the top display of the new menu.

Navigates between submenus.

Saves changed values, resets alarms and expands

the value field.

Note

No settings can be made in this menu.

TM05 7929 1613

2.1.0.0.0.0 Status

English (US)

13. "Settings" menu

Navigation

Home > Settings

Press and go to the "Settings" menu with .

"Settings" menu

This menu offers the following setting options:

•Setpoint

•Operating mode

•Control mode

•FLOW

LIMIT

•Automatic Night Setback

•Relay outputs

•Setpoint influence

•Bus communication

•General settings.

Navigate between submenus with or .

13.1 Setpoint

Navigation

Home > Settings > Setpoint

Setpoint

Set the setpoint so that it matches the system.

Setting:

1. Press [OK] to start the setting.

2. Select digit with and and adjust with or .

3. Press [OK] to save.

A too high setting may result in noise in the system whereas a too

low setting may result in insufficient heating or cooling in the

system.

13.2 Operating mode

Navigation

Home > Settings > Operating mode

Operating mode

•Normal (control mode)

•Stop

•Min. (min. curve)

•Max. (max. curve).

Setting:

1. Select operating mode with or .

2. Press [OK] to save.

The pump can be set to operate according to the max. or min.

curve, like an uncontrolled pump. See fig. 20.

Fig. 20 Max. and min. curves

•Normal: The pump runs according to the selected control

mode.

•Stop: The pump stops.

•Min.: The min. curve mode can be used in periods in which a

minimum flow is required.

This operating mode is for instance suitable for manual night

setback if Automatic Night Setback is not desired.

•Max.: The max. curve mode can be used in periods in which a

maximum flow is required.

This operating mode is for instance suitable for hot-water

priority.

3.1.0.0.0.0 Settings

TM05 7925 1613

Control mode Measuring unit

Proportional pressure m, ft

Constant pressure m, ft

Constant temperature °C, °F, K

Constant curve %

3.1.2.0.0.0 Operating mode

TM05 2446 5111

Max.

Min.

English (US)

13.3 Control mode

Navigation

Home > Settings > Control mode

Control mode

•AUTO

ADAPT

•FLOW

ADAPT

•Prop. press. (proportional pressure)

•Const. press. (constant pressure)

•Const. temp.(constant temperature)

•Constant curve.

Setting:

1. Select control mode with or .

2. Press [OK] to enable.

The setpoint for all control modes, except AUTOADAPT and

FLOWADAPT, can be changed in the "Setpoint" submenu under

"Settings" when the desired control mode has been selected.

All control modes, except "Constant curve", can be combined with

Automatic Night Setback. See section 13.5

Automatic Night

Setback

The FLOWLIMIT function can also be combined with the last four

control modes mentioned above. See section 13.4 FLOWLIMIT.

13.3.1 AUTOADAPT

The AUTOADAPT control mode continuously adapts the pump

performance according to the actual system characteristic.

Fig. 21 AUTOADAPT

When the AUTOADAPT control mode has been enabled, the pump

will start with the factory setting, Hfac = Hset1, corresponding to

approx. 55 % of its maximum head, and then adjust its

performance to A1. See fig. 21.

When the pump registers a lower head on the max. curve, A2, the

AUTOADAPT function will automatically select a correspondingly

lower control curve, Hset2. If the valves in the system close, the

pump will adjust its performance to A3.

The AUTOADAPT control mode is a form of proportional-pressure

control where the control curves have a fixed origin, Hauto_min.

The AUTOADAPT control mode has been developed specifically

for heating systems and is not recommended for air-conditioning

and cooling systems.

To reset AUTOADAPT, see section 13.9.8

Return to factory

settings

13.3.2 FLOWADAPT

When FLOWADAPT is selected, the pump will run AUTOADAPT and

ensure that the flow never exceeds the entered FLOWLIMIT value.

The setting range for the FLOWLIMIT is 25 to 90 % of the Qmax of

the pump.

The factory setting of the FLOWLIMIT is the flow where the

AUTOADAPT factory setting meets the max. curve. See fig. 22.

Fig. 22 FLOWADAPT

13.3.3 Proportional pressure

The pump head is reduced at decreasing water demand and

increased at rising water demand. See fig. 23.

The setpoint can be set within the range from 1 meter (3.28 ft) to

approx. 1 meter (3.28 ft) below the maximum head, depending on

pump type.

Fig. 23 Proportional pressure

3.1.3.0.0.0 Control mode

Note

The operating mode must be set to "

Normal

before a control mode can be enabled.

Note

Manual setting of the setpoint is not possible.

TM05 2452 1312

auto_min

fac

set1

set2

A1: Original duty point.

A2: Lower registered head on the max. curve.

A3: New duty point after AUTOADAPT control.

Hset1: Original setpoint setting.

Hset2: New setpoint after AUTOADAPT control.

Hfac.: MAGNA3 xx-60: 11.4 ft (3.5 m)

MAGNA3 xx-80: 14.7 ft (4.5 m)

MAGNA3 xx-100: 18 ft (5.5 m)

MAGNA3 xx-120: 21.3 ft (6.5 m)

MAGNA3 xx-150: 26.2 ft (8.0 m)

MAGNA3 xx-180: 31.1 ft (9.5 m).

Hauto_min: A fixed value of 4.9 ft (1.5 m).

TM05 3334 1212 TM05 2448 1212

max

25 % 90 %

auto_min

fac

Setting range

Hset

English (US)

13.3.4 Constant pressure

The pump maintains a constant pressure, irrespective of water

demand. See fig. 24.

Fig. 24 Constant pressure

13.3.5 Constant temperature

This control mode ensures a constant temperature. Constant

temperature is a comfort control mode that can be used in

domestic hot-water systems to control the flow to maintain a fixed

temperature in the system. See fig. 25. When this control mode is

used, no balancing valves must be installed in the system.

If the pump is installed in the return pipe of the system, the

internal temperature sensor can be used. In this case, the pump

must be installed as close as possible to the consumer (radiator,

heat exchanger, etc.).

If the pump is installed in the flow pipe, an external temperature

sensor must be installed in the return pipe of the system. The

sensor must be installed as close as possible to the consumer

(radiator, heat exchanger, etc.).

The constant-temperature control mode also reduces the risk of

bacterial growth (for example Legionella) in the system.

It is possible to set the sensor range:

• min. +14 °F (-10 °C)

• max. +266 °F (+130 °C).

Fig. 25 Constant temperature

13.3.6 Differential temperature

This control mode ensures a constant differential temperature drop

across a heating system.

The pump should be installed in the flow pipe so the built-in sensor

measures the fluid temperature going out to the load. An external

temperature sensor must be installed in the system to measure the

fluid temperature returning from the heating load. In this mode, the

pump will maintain a constant temperature. See fig. 20. and 21.

differential between the pump and the external sensor.

Fig. 26 Differential temperature

Fig. 27 Differential temperature

See table, fig. 28.

TM05 2449 0312

Note

To ensure that the pump is able to control, we

recommend to set the sensor range between

+3 °F and +257 °F (-5 and +125 °C).

TM05 2451 5111

TM05

Note

Changing Kp and Ti values are only possible with

Grundfos GO.

Note

Changing the Kp and Ti values will affect all

control modes. If the Control Mode is to be

changed back to another mode you must set the

Kp and Ti values back to default values. For all

other modes the default values are Kp=0.5,

Ti=0.5.

Δt

English (US)

The table shows the suggested controller settings:

Fig. 28 Table, suggested controller settings

1. Heating systems are systems in which an increase in pump

performance will result in a rise in temperature at the sensor.

2. Cooling systems are systems in which an increase in pump

performance will result in a drop in temperature at the sensor.

L1 = Distance in [m] between pump and sensor.

L2 = Distance in [m] between heat exchanger and sensor.

How to set the PI controller

For most applications, the factory setting of the controller

constants Kp and Ti will ensure optimum pump operation.

However, in some applications an adjustment of the controller

may be needed.

Proceed as follows:

1. Increase the gain (Kp) until the motor becomes unstable.

Instability can be seen by observing if the measured value

starts to fluctuate. Furthermore, instability is audible as the

motor starts hunting up and down.

Some systems, such as temperature controls, are

slow-reacting, meaning that it may be several minutes before

the motor becomes unstable.

2. Set the gain (Kp) to half the value of the value which made the

motor unstable. This is the correct setting of the gain.

3. Reduce the integral time (Ti) until the motor becomes

unstable.

4. Set the integral time (Ti) to twice the value which made the

motor unstable. This is the correct setting of the integral time.

General rules of thumb:

• If the controller is too slow-reacting, increase Kp.

• If the controller is hunting or unstable, dampen the system by

reducing Kp or increasing Ti.

13.3.7 Constant curve

The pump can be set to operate according to a constant curve,

like an uncontrolled pump. See fig. 29.

The desired speed can be set in % of maximum speed in the

range from 25 to 100 %.

Fig. 29 Constant curve

Fig. 30 Power and pressure limitations influencing the max.

curve

System/application

Heating

system1)

Cooling

system2)

0.5 - 0.5 10 + 5L2

0.5 10 + 5L2

0.5 - 0.5 30 + 5L2

L2 [m]

Δt

L2 [m]

TM05 2446 0312

Note

Depending on the system characteristic and the

duty point, the 100 % setting may be slightly

smaller than the pump’s actual max. curve even

though the display shows 100 %. This is due to

power and pressure limitations built into the

pump. The deviation varies according to pump

type and pressure loss in the pipes.

TM05 3041 1212

H [%]

Q [m

/h]

100 %

Max. curve

Limited

max. curve

Actual duty point

English (US)

13.4 FLOWLIMIT

Navigation

Home > Settings > FLOWLIMIT

FLOWLIMIT

•Enable FLOWLIMIT function

•Set FLOWLIMIT.

Setting:

1. To enable the function, select "Active" with or and press

[OK].

2. To set the FLOWLIMIT, press [OK] to start the setting.

3. Select digit with and and adjust with or .

4. Press [OK] to save.

Fig. 31 FLOWLIMIT

The FLOWLIMIT function can be combined with the following

control modes:

•Prop. press.

•Const. press.

•Const. temp.

•Constant curve.

A flow-limiting function ensures that the flow never exceeds the

entered FLOWLIMIT value.

The setting range for FLOWLIMIT is 25 to 90 % of the Qmax of the

pump.

The factory setting of the FLOWLIMIT is the flow where the

AUTOADAPT factory setting meets the max. curve. See fig. 22.

13.5 Automatic Night Setback

Navigation

Home > Settings > Automatic Night Setback

Automatic Night Setback

To enable the function, select "Active" with or and press

[OK].

Once Automatic Night Setback has been enabled, the pump

automatically changes between normal duty and night setback

(duty at low performance).

Changeover between normal duty and night setback depends on

the flow-pipe temperature.

The pump automatically changes over to night setback when the

built-in sensor registers a flow-pipe temperature drop of more

than +18 to +27 °F (-8 to -3 °C) within approx. two hours. The

temperature drop must be at least 0.18 °F/min (0.1 °C/min).

Changeover to normal duty takes place without a time lag when

the temperature has increased by approx. +18 °F (-8 °C).

13.6 Relay outputs

Navigation

Home > Settings > Relay outputs

Relay outputs

•Relay output 1

•Relay output 2.

The relay outputs can be set to the following:

•Not active

•Ready

•Alarm

•Operation.

The pump incorporates two signal relays, terminals 1, 2 and 3, for

a potential-free alarm signal, ready signal and operating signal.

For further information, see section 5.5.1 Relay outputs.

Set the function of the signal relays, alarm signal (factory setting),

ready signal and operating signal, on the pump control panel.

The output, terminals 1, 2 and 3, is electrically separated from the

rest of the controller.

3.1.5.0.0.0 FLOWLIMIT

TM05 2445 1212

max

limit

25 % 90 %

Setting range

3.1.6.0.0.0 Automatic Night Setback

Note

Automatic Night Setback cannot be enabled

when the pump is in constant-curve mode.

3.1.12.0.0.0 Relay outputs

English (US)

The signal relay is operated as follows:

•Not active

The signal relay is deactivated.

•Ready

The signal relay is active when the pump is running or has

been set to stop, but is ready to run.

•Alarm

The signal relay is activated together with the red indicator

light on the pump.

•Operation

The signal relay is activated together with the green indicator

light on the pump.

13.7 Setpoint influence

Navigation

Home > Settings > Setpoint influence

Setpoint influence

•External setpoint function

•Temperature influence.

13.7.1 External setpoint function

The external setpoint function is an external 0-10 V or 4-20 mA

signal that will control the pump speed in a range from 0 to 100 %

in a linear function. See fig. 32.

Fig. 32 External setpoint function, 0-10 V

13.7.2 Temperature influence

When this function is enabled in proportional- or

constant-pressure control mode, the setpoint for head will be

reduced according to the liquid temperature.

Temperature influence can be set to function at liquid

temperatures below +176 °F or +122 °F (80 °C or 50 °C). These

temperature limits are called Tmax.. The setpoint is reduced in

relation to the head set (= 100 %) according to the characteristics

below.

Fig. 33 Temperature influence

In the above example, Tmax. = +176 °F (+80 °C) has been

selected.

The actual liquid temperature Tactual causes the setpoint for head

to be reduced from 100 % to Hactual.

The temperature influence function requires the following:

• Proportional-pressure, constant-pressure or constant-curve

control mode.

• Pump installed in flow pipe.

• System with flow-pipe temperature control.

Temperature influence is suitable for the following systems:

• Systems with variable flows (for example two-pipe heating

systems) in which the enabling of the temperature influence

function will ensure a further reduction of the pump

performance in periods with small heating demands and

consequently a reduced flow-pipe temperature.

• Systems with almost constant flows (for example one-pipe

heating systems and underfloor heating systems), in which

variable heating demands cannot be registered as changes in

the head as is the case with two-pipe heating systems. In such

systems, the pump performance can only be adjusted by

enabling the temperature influence function.

Selection of Tmax.

In systems with a dimensioned flow-pipe temperature of:

• up to and including +131 °F (+55 °C),

select Tmax. = +122 °F (+50 °C)

• above +131 °F (+55 °C), select Tmax. = +176 °F (80 °C).

3.1.15.0.0.0 Setpoint influence

Range

4-20 mA [0-100 %]

0-10 V [0-100 %]

Control

0-20 % (e.g. 0-2 V) Setpoint = Min.

20-100 % (e.g. 2-10 V) Setpoint = Min. ↔ setpoint

Note

Before the "

External setpoint function

" can be

enabled, the analog input must be set to

External setpoint influence

" via the "

Assist

" menu.

See section 5.5.3 Analog input.

TM05 3219 1212

rpm

Min.

Max.

TM05 7946 1613

Note

The temperature influence function cannot be

used in air-conditioning and cooling systems.

T [°F]

30 %

68 122 176

T [°C]

20 50 80

100 %

Hactual

Tactual

English (US)

13.8 Bus communication

13.8.1 Pump number

Navigation

Home > Settings > Bus communication > Pump number

Pump number

A unique number can be allocated to the pump. This makes it

possible to distinguish between pumps in connection with bus

communication.

13.9 General settings

13.9.1 Language

Navigation

Home > Settings > General settings > Language

Language

The display can be shown in any of the following languages:

GB, BG, CZ, DK, DE, EE, GR, ES, FR, HR, IT, LV, LT, HU, NL,

UA, PL, PT, RU, RO, SK, SI, RS, FI, SE, TR, CN, JP or KO.

Measuring units are automatically changed according to selected

language.

Setting:

1. Select language with and .

2. Press [OK] to enable.

13.9.2 Set date and time

Navigation

Home > Settings > General settings > Set date and time

Set date and time

•Select date format

•Set date

•Select time format

•Set time.

Set the real-time clock in this menu.

Select date format

•YYYY-MM-DD

•DD-MM-YYYY

•MM-DD-YYYY.

Setting:

1. Select "Set date".

2. Press [OK] to start the setting.

3. Select digit with and and adjust with or .

4. Press [OK] to save.

Select time format

•HH:MM 24-hour clock

•HH:MM am/pm 12-hour clock.

Setting:

1. Select "Set time".

2. Press [OK] to start the setting.

3. Select digit with and and adjust with or .

4. Press [OK] to save.

13.9.3 Units

Navigation

Home > Settings > General settings > Units

Units

•SI or US units

• Customized units.

Select whether the display should shows SI or US units or select

the desired units for the parameters below.

•Pressure

•Differential pressure

•Head

•Level

•Flow rate

•Volume

•Temperature

•Differential temp.

•Power

•Energy.

Setting:

1. Select parameter and press [OK].

2. Select unit with or .

3. Press [OK] to enable.

If "SI or US units" is selected, the customized units will be reset.

3.1.18.1.0.0 Pump number

TM05 7947 1613

3.1.19.2.0.0 Set date and time

3.1.19.3.0.0 Units

English (US)

13.9.4 Enable/disable settings

Navigation

Home > Settings > General settings > Enable/disable settings

Enable/disable settings

In this display, the possibility of making settings can be disabled

for protective reasons.

Select "Disable" with or and press [OK].

The pump will now be locked for settings. Only the "Home"

display will be available.

To unlock the pump and allow settings, press and

simultaneously for at least 5 seconds.

13.9.5 Delete history

Navigation

Home > Settings > General settings > Delete history

Delete history

•Delete work log

•Delete heat energy data

•Delete energy consumption.

It is possible to delete data from the pump, for example if the

pump is moved to another system or if new data are required due

to changes to the system.

Setting:

1. Select the relevant submenu and press [OK].

2. Select "Yes" with or and press [OK] or press to

cancel.

13.9.6 Define Home display

Navigation

Home > Settings > General settings > Define Home display

Define Home display

•Select Home display type

•Define Home display contents.

The "Home" display can be set to show up to four user-defined

parameters or a graphical illustration of a performance curve.

Select Home display type

1. Select "List of data" or "Graphical illustration" with or .

2. Press [OK] to save.

To specify the contents, go to "Define Home display contents".

Define Home display contents

1. To set "List of data", press [OK] to start the setting.

A list of parameters will appear in the display.

2. Select or deselect with [OK].

Up to four parameters can be selected.

The selected parameters will be shown as illustrated below.

The arrow icon indicates that the parameter links to the "Settings"

menu and works as a shortcut for quick settings.

1. To set "Graphical illustration", press [OK] to start the setting.

2. Select the desired curve and press [OK] to save.

13.9.7 Display brightness

Navigation

Home > Settings > General settings > Display brightness

Brightness

1. Press [OK] to start the setting.

2. Set brightness with and .

3. Press [OK] to save.

3.1.19.4.0.0 Enable/disable settings3.1.19.5.0.0 Delete history3.1.19.6.0.0 Define Home display

TM05 7929 1613

3.1.19.7.1.0 Brightness

English (US)

13.9.8 Return to factory settings

Navigation

Home > Settings > General settings > Return to factory settings

Return to factory settings

It is possible to recall the factory settings and overwrite the

current settings. All user settings in the "Settings" and "Assist"

menus will be set back to the factory settings. This also includes

language, units, possible setup of analog input, multi-pump

function, etc.

To overwrite the current settings with the factory settings, select

"Yes" with or and press [OK].

13.9.9 Run start-up guide

Navigation

Home > Settings > General settings > Run start-up guide

Run start-up guide

It is possible to run the start-up guide again. The start-up guide

will guide the user through the general settings of the pump, such

as language, date and time.

To run the start-up guide, select "Yes" with or and press

[OK].

14. "Assist" menu

Navigation

Home > Assist

Press and go to the "Assist" menu with .

"Assist" menu

This menu offers the following:

•Assisted pump setup

•Setting of date and time

•Multi-pump setup

•Setup, analog input

•Description of control mode

•Assisted fault advice.

The "Assist" menu guides the user through the setting of the

pump. In each submenu, the user is presented with a guide that

helps throughout the setting.

14.1 Assisted pump setup

This submenu is a step-by-step guide to complete pump setup,

starting with a presentation of the control modes and ending with

the setpoint setting.

14.2 Setting of date and time

See section 13.9.2

Set date and time

14.3 Multi-pump setup

This submenu assists the user in setting up a multi-pump system.

See section 14.8 Multi-pump function.

14.4 Setup, analog input

This submenu assists the user in setting up the analog input.

14.5 Description of control mode

This submenu gives a short description of each control mode.

14.6 Assisted fault advice

This submenu provides information about faults and corrective

actions.

14.7 Wireless GENIair

The pump is designed for multi-pump connection via the wireless

GENIair connection or wired via a bus system

(Building Management System).

The built-in wireless GENIair module enables communication

between pumps and with the Grundfos Go Remote without the

use of add-on modules:

• Multi-pump function.

See section 14.8 Multi-pump function.

• Grundfos GO Remote.

See section 18.1 Grundfos GO Remote.

3.1.19.10.1.0 Return to factory settings3.1.19.11.0.0 Run start-up guide

Assist

English (US)

14.8 Multi-pump function

The multi-pump function enables the control of single-head

pumps connected in parallel and twin-head pumps without the

use of external controllers. The pumps in a multi-pump system

communicate with each other via the wireless GENIair

connection.

A multi-pump system is set up via a selected pump, i.e. the

master pump (first selected pump). All Grundfos pumps with a

wireless GENIair connection can be connected to the multi-pump

system.

The multi-pump functions are described in the following sections.

14.8.1 Alternating operation

Only one pump is operating at a time. The change from one pump

to the other depends on time or energy. If a pump fails, the other

pump will take over automatically.

Pump system:

• Twin-head pump.

• Two single-head pumps connected in parallel. The pumps

must be of same type and size. Each pump requires a

non-return valve in series with the pump.

14.8.2 Back-up operation

One pump is operating continuously. The back-up pump is

operated at intervals to prevent seizing up. If the duty pump stops

due to a fault, the back-up pump will start automatically.

Pump system:

• Twin-head pump.

• Two single-head pumps connected in parallel. The pumps

must be of same type and size. Each pump requires a

non-return valve in series with the pump.

14.8.3 Cascade operation

Cascade operation ensures that the pump performance is

automatically adapted to the consumption by switching pumps on

or off. The system thus runs as energy-efficiently as possible with

a constant pressure and a limited number of pumps.

All pumps in operation will run at equal speed. Pump changeover

is automatic and depends on energy, operating hours and fault.

Pump system:

• Twin-head pump.

• Two single-head pumps connected in parallel. The pumps

must be of same type and size. Each pump requires a

non-return valve in series with the pump.

• The control mode must be set to "Const. press." or "Constant

curve".

English (US)

15. Selection of control mode

System application Select this control

mode

Recommended for most heating systems, especially in systems with relatively large pressure losses in the

distribution pipes. See description under proportional pressure.

In replacement situations where the proportional-pressure duty point is unknown.

The duty point has to be within the AUTOADAPT operating range. During operation, the pump automatically

makes the necessary adjustment to the actual system characteristic.

This setting ensures minimum energy consumption and noise level from valves, which reduces operating costs

and increases comfort.

AUTOADAPT

The FLOWADAPT control mode is a combination of AUTOADAPT and FLOWLIMIT.

This control mode is suitable for systems where a maximum flow limit, FLOWLIMIT, is desired. The pump

continuously monitors and adjusts the flow, thus ensuring that the selected FLOWLIMIT is not exceeded.

Main pumps in boiler applications where a steady flow through the boiler is required. No extra energy is used for

pumping too much liquid into the system.

In systems with mixing loops, the control mode can be used to control the flow in each loop.

Benefits:

• Enough water for all loops at peak load conditions if each loop has been set to the right maximum flow.

• The dimensioned flow for each zone (required heat energy) is determined by the flow from the pump.

This value can be set precisely in the FLOWADAPT control mode without the use of pump throttling valves.

• When the flow is set lower than the balancing valve setting, the pump will ramp down instead of losing energy

by pumping against a balancing valve.

• Cooling surfaces in air-conditioning systems can operate at high pressure and low flow.

FLOWADAPT

In systems with relatively large pressure losses in the distribution pipes and in air-conditioning and cooling systems.

• Two-pipe heating systems with thermostatic valves and

– a dimensioned pump head higher than 13 ft (4 meters)

– very long distribution pipes

– strongly throttled pipe balancing valves

– differential-pressure regulators

– large pressure losses in those parts of the system through which the total quantity of water flows

(for example boiler, heat exchanger and distribution pipe up to the first branching).

• Primary circuit pumps in systems with large pressure losses in the primary circuit.

• Air-conditioning systems with

– heat exchangers (fan coils)

– cooling ceilings

– cooling surfaces.

Proportional

pressure

In systems with relatively small pressure losses in the distribution pipes.

• Two-pipe heating systems with thermostatic valves and

– a dimensioned pump head lower than 6.5 ft (2 meters)

– dimensioned for natural circulation

– small pressure losses in those parts of the system through which the total quantity of water flows

(for example boiler, heat exchanger and distribution pipe up to the first branching) or

– modified to a high differential temperature between flow pipe and return pipe (for example district heating).

• Underfloor heating systems with thermostatic valves.

• One-pipe heating systems with thermostatic valves or pipe balancing valves.

• Primary circuit pumps in systems with small pressure losses in the primary circuit.

Constant pressure

In heating systems with a fixed system characteristic, for example domestic hot-water systems, the control of the

pump according to a constant return-pipe temperature may be relevant.

FLOWLIMIT can be used with advantage to control the maximum circulation flow.

Constant

temperature

set

English (US)

In a heating system where a constant temperature drop across the system is desired, constant differential

temperature can be used.

Differential

temperature

If an external controller is installed, the pump is able to change from one constant curve to another, depending

on the value of the external signal.

The pump can also be set to operate according to the max. or min. curve, like an uncontrolled pump:

• The max. curve mode can be used in periods in which a maximum flow is required. This operating mode is for

instance suitable for hot-water priority.

• The min. curve mode can be used in periods in which a minimum flow is required. This operating mode is for

instance suitable for manual night setback if Automatic Night Setback is not desired.

Constant curve

In systems with pumps operating in parallel.

The multi-pump function enables the control of single-head pumps connected in parallel (two pumps) and

twin-head pumps without the use of external controllers. The pumps in a multi-pump system communicate with

each other via the wireless GENIair connection.

"Assist" menu

"Multi-pump setup"

System application Select this control

mode

ΔT

English (US)

16. Fault finding

16.1 Grundfos Eye operating indications

16.2 Signalling communication with remote control

The centre indicator light in the Grundfos Eye will indicate communication with the Grundfos GO Remote.

The table below describes the desired function of the center indicator light.

Warning

Before dismantling the pump, drain the system or close the isolating valve on either side of the pump. The pumped

liquid may be scalding hot and under high pressure.

Grundfos Eye Indication Cause

No lights on. Power off.

Pump not running.

Two opposite green indicator lights running in the

direction of rotation of the pump.

Power on.

Pump running.

Two opposite green indicator lights permanently

on.

Power on.

Pump not running.

One yellow indicator light running in the direction

of rotation of the pump.

Warning.

Pump running.

One yellow indicator light permanently on. Warning.

Pump stopped.

Two opposite red indicator lights flashing

simultaneously.

Alarm.

Pump stopped.

One green indicator light in the middle

permanently on (in addition to another

indication).

Remote-controlled.

The pump is currently being accessed by the

Grundfos GO Remote.

Case Description Signalling by the centre indicator light

Wink

The pump in question is highlighted in the Grundfos GO Remote display.

To inform the user of the location of the highlighted pump, the center

indicator light will flash four or five times once to signal "I am here".

Four or five quick flashes once to signal

"I am here".

Push me

The pump in question is selected/opened in the Grundfos GO Remote

menu. The pump will signal "Push me" to ask the user to select the

pump/allow the pump to exchange data with the Grundfos GO Remote.

The indicator light will flash continuously until a pop-up window asks the

user to press [OK] to allow communication with the Grundfos GO Remote.

Flashing continuously with 50 % duty

cycle.

I am connected

The indicator light is signalling that the pump is connected to

Grundfos GO Remote. The indicator light is permanently on as long as the

pump is selected in the Grundfos GO Remote.

Indicator light permanently on.

English (US)

16.3 Fault finding

A fault indication can be reset in one of the following ways:

• When the fault cause has been eliminated, the pump will

revert to normal duty.

• If the fault disappears by itself, the fault indication will

automatically be reset.

• The fault cause will be stored in the pump alarm log.

Warning and alarm codes Fault Automatic reset

and restart? Corrective actions

Pump communication fault (10)

Alarm

Communication fault between

different parts of the

electronics.

Yes Replace the pump, or call GRUNDFOS

SERVICE for assistance.

Forced pumping (29)

Alarm

Other pumps or sources force

flow through the pump even if

the pump is stopped.

Yes

Check the system for defective non-return valves

and replace, if necessary.

Check the system for correct position of

non-return valves, etc.

Undervoltage (40, 75)

Alarm

Supply voltage to the pump

too low. Yes Check that the power supply is within the

specified range.

Blocked pump (51)

Alarm The pump is blocked. No

Dismantle the pump, and remove any foreign

matter or impurities preventing the pump from

rotating.

Dry running (57)

Alarm

No water at the pump inlet or

the water contains too much

air.

Prime and vent the pump before a new start-up.

Check that the pump is operating correctly. If not,

replace the pump, or call GRUNDFOS SERVICE

for assistance.

Internal fault (72, 84, 155, 157)

Warning/alarm

Internal fault in the pump

electronics. Yes Replace the pump, or call GRUNDFOS

SERVICE for assistance.

Overvoltage (74)

Alarm

Supply voltage to the pump

too high. Yes Check that the power supply is within the

specified range.

Internal sensor fault (88)

Warning

The pump is receiving a signal

from the internal sensor which

is outside the normal range.

Yes

Check that the plug and cable are connected

correctly in the sensor. The sensor is located on

the back of the pump housing.

Replace the sensor, or call GRUNDFOS

SERVICE for assistance.

External sensor fault (93)

Warning

The pump is receiving a signal

from the external sensor which

is outside the normal range.

Yes

Does the electrical signal set (0-10 V or 4-20 mA)

match the sensor output signal?

If not, change the setting of the analog input, or

replace the sensor with one that matches the

setup.

Check the sensor cable for damage.

Check the cable connection at the pump and at

the sensor. Correct the connection, if required.

The sensor has been removed, but the analog

input has not been disabled.

Replace the sensor, or call GRUNDFOS

SERVICE for assistance.

Caution

If the power supply cable is damaged, it must be replaced by the manufacturer, the manufacturer’s service partner or

a similarly qualified person.

English (US)

17. Sensor

Fig. 34 Correct position of sensor

During maintenance and replacement of the sensor, it is

important that the sealing cap is fitted correctly on the sensor

housing.

Tighten the screw holding the clamp to 3.7 ft-lbs (5 Nm).

17.1 Sensor specifications

17.1.1 Pressure

* Full scale.

17.1.2 Temperature

TM05 3036 0812

Nose downwards

5 Nm

Warning

Before replacing the sensor, make sure that the

pump is stopped and that the system is not

pressurized.

Maximum differential pressure

during operation 29 psi / 2 bar / 0.2 MPa

Accuracy

+32 to +185 °F (0 to +85 °C) 2 % *

Accuracy

+14 to +32 °F and +185 to +266 °F

(-10 to 0 °C and +85 to +130 °C)

3 % *

Temperature range during operation +14 to +266 °F

(-10 to +130 °C)

Accuracy ± 5.6 °F

(± 2 °C)

English (US)

18. Accessories

18.1 Grundfos GO Remote

The MAGNA3 is designed for wireless communication with the

Grundfos GO Remote app. The Grundfos GO Remote app

communicates with the pump via radio communication

(wireless GENIair).

The Grundfos GO Remote app is available from Apple AppStore

and Android market.

The Grundfos GO Remote concept replaces the Grundfos R100

remote control. This means that all products supported by the

R100 are supported by the Grundfos GO Remote.

The Grundfos GO Remote can be used for the following:

• Reading of operating data.

• Reading of warning and alarm indications.

• Setting of control mode.

• Setting of setpoint.

• Selection of external setpoint signal.

• Allocation of pump number making it possible to distinguish

between pumps that are connected via Grundfos GENIbus.

• Selection of function for digital input.

• Generation of reports (PDF).

• Assist function.

• Multi-pump setup.

• Display of relevant documentation.

For function and connection to the pump, see separate

installation and operating instructions for the desired type of

Grundfos GO Remote setup.

18.2 Communication

The pump can communicate via the wireless GENIair connection

or a CIM module.

This enables the pump to communicate with other pumps and

with different types of network solutions.

The Grundfos CIM modules (CIM = Communication Interface

Module) enable the pump to connect to standard fieldbus

networks.

Fig. 35 Building management system (BMS) with four pumps

connected in parallel

A CIM module is an add-on communication interface module.

The CIM module enables data transmission between the pump

and an external system, for example a BMS or SCADA system.

The CIM module communicates via fieldbus protocols.

The following CIM modules are available:

18.2.1 Reuse of CIM modules

A CIM module in a CIU unit used together with

GRUNDFOS MAGNA can be reused in MAGNA3.

The CIM module has to be re-configured before it is used in a

MAGNA3 pump. Contact your nearest Grundfos company.

Fig. 36 Reuse of CIM module

Note

The radio communication between the pump and

the Grundfos GO Remote is encrypted to protect

against misuse.

TM05 2710 0612

Note

A gateway is a device that facilitates the transfer

of data between two different networks based on

different communication protocols.

Module Fieldbus protocol Product number

CIM 050 GENIbus 96236335

CIM 100 LONworks 96753735

CIM 150 Profibus DP 96753081

CIM 200 Modbus RTU 96753082

CIM 300 BACnet MS/TP 96893769

TM05 2911 1312

English (US)

18.3 Fitting the CIM module

Warning

Before fitting the module, switch off the power supply. Make sure that the power supply cannot be accidentally

switched on.

Step Action Illustration

1 Remove the front cover from the control box.

TM05 2875 0912

2 Fit the CIM module as illustrated and click it on.

TM05 2914 1112

3Fit and tighten the screw holding the CIM module and

secure the earth connection.

TM05 2912 1112

For connection to fieldbus networks, see separate

installation and operating instructions for the desired

CIM module.

TM05 2913 1112

English (US)

19. Technical data

Supply voltage

See Pump Nameplate for Rated Supply Voltage:

1 x 115 V ± 10 %, 50/60 Hz, PE.

1 x 208-230 V ± 10 %, 50/60 Hz, PE.

Motor protection

The pump requires no external motor protection.

Enclosure class

Enclosure Type 2.

Insulation class

Relative air humidity

Maximum 95 %.

Ambient temperature

+32 °F to +104 °F (0 °C to +40 °C).

During transport: -40 °F to +158 °F (-40 °C to +70 °C).

Temperature class

TF110 (EN 60335-2-51).

Liquid temperature

Continuously: +14 °F to +230 °F (-10 °C to +110 °C).

Stainless-steel pumps in domestic hot-water systems:

In domestic hot-water systems, we recommend to keep the liquid

temperature below +150 °F (+65 °C) to eliminate the risk of lime

precipitation.

System pressure

The maximum permissible system pressure is stated on the pump

nameplate:

175 psi (12 bar).

Inlet pressure

Recommended inlet pressures:

Single-head pumps:

• Min. 1.5 psi / 0.10 bar / 0.01 MPa at +167 °F (+75 °C)

• Min. 5 psi / 0.35 bar / 0.035 MPa at +203 °F (+95 °C)

• Min. 9.5 psi / 0.65 bar / 0.065 MPa at +230 °F (+110 °C).

Twin-head pumps:

• Min. 13 psi / 0.90 bar / 0.09 MPa at +167 °F (+75 °C)

• Min. 17.5 psi / 1.20 bar / 0.12 MPa at +203 °F (+95 °C)

• Min. 22 psi / 1.50 bar / 0.15 MPa at +230 °F (+110 °C).

EMC (electromagnetic compatibility)

EN 55014-1:2006, EN 55014-2:1998, EN 61800-3-3:2008 and

EN 61000-3-2:2006.

Sound pressure level

The sound pressure level of the pump is lower than 43 dB(A).

Leakage current

The pump mains filter will cause a discharge current to earth

during operation. Ileakage < 3.5 mA.

Consumption when the pump is stopped

1 to 10 W, depending on activity, i.e. reading the display, use of

Grundfos GO Remote, interaction with modules, etc.

Input/output communication

cos φ

The MAGNA3 has a built-in active PFC (Power Factor Correction)

which gives a cos φ from 0.98 to 0.99, i.e. very close to 1.

20. Disposal

This product has been designed with focus on the disposal and

recycling of materials. The following disposal values apply to all

variants of Grundfos MAGNA3 pumps:

• minimum 85 % recycling

• maximum 10 % incineration

• maximum 5 % depositing.

Values in percent of total weight.

This product or parts of it must be disposed of in an

environmentally sound way according to local regulations.

Subject to alterations.

Two digital inputs

External potential-free contact.

Contact load: 5 V, 10 mA.

Screened cable.

Loop resistance: Maximum 130 Ω.

Analog input 4-20 mA (load: 150 Ω).

0-10 VDC (load: 78 kΩ).

Two relay outputs

Internal potential-free changeover contact.

Maximum load: 250 V, 2 A, AC1.

Minimum load: 5 VDC, 20 mA.

Screened cable, depending on signal level.

Grundfos companies

USA

GRUNDFOS Pumps Corporation

17100 West 118th Terrace

Olathe, Kansas 66061

Phone: +1-913-227-3400

Telefax: +1-913-227-3500

Canada

GRUNDFOS Canada Inc.

2941 Brighton Road

Oakville, Ontario

L6H 6C9

Phone: +1-905 829 9533

Telefax: +1-905 829 9512

México

Bombas GRUNDFOS de México S.A. de C.V.

Boulevard TLC No. 15

Parque Industrial Stiva

Aeropuerto

Apodaca, N.L.C.P. 66600

Phone: +52-81-8144 4000

Telefax: +52-81-8144 4010

www.grundfos.us

L-MAG-TL-09

98459408 0513

ECM: 1112321

The name Grundfos, the Grundfos logo, and be think innovate are registered trademarks owned by Grundfos Holding A/S or Grundfos A/S, Denmark. All rights reserved worldwide. © Copyright Grundfos Holding A/S

www.grundfos.com

537341 3 Grundfos Magna3 Installation And Instructions User Manual

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