Grundfos MAGNA3 User Manual

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MAGNA3

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

English (US)

English (US) Installation and operating instructions

Original installation and operating instructions.

CONTENTS

1. Limited warranty

2. Symbols used in this document

3. General information

3.1 Applications

3.2 Pumped liquids

3.3 Operating conditions

3.4 Frost protection

3.5 Insulating shells

3.6 Non-return valve

3.7 Nameplate

3.8 Radio communication

3.9 Tools

4. Mechanical installation

4.1 Installing the pump

4.2 Positioning

4.3 Control box positions

4.4 Changing the control box position

5. Electrical installation

5.1 Supply voltage

5.2 Connection to the power supply

5.3 Connection diagram

5.4 Connection to external controllers

5.5 Input/output communication

5.6 Priority of settings

6. First start-up

7. Settings

7.1 Overview of settings

8. Menu overview

9. Control panel

10. Menu structure

11. "Home" menu

12. "Status" menu

13. "Settings" menu

13.1 Setpoint

13.2 Operating mode

13.3 Control mode

13.4 FLOW

13.5 Automatic Night Setback

13.6 Relay outputs

13.7 Setpoint influence

13.8 Bus communication

13.9 General settings

14. "Assist" menu

14.1 Assisted pump setup

14.2 Setting of date and time

14.3 Multi-pump setup

14.4 Setup, analog input

14.5 Description of control mode

14.6 Assisted fault advice

14.7 Wireless GENIair

14.8 Multi-pump function

15. Selection of control mode

16. Fault finding

16.1 Grundfos Eye operating indications

16.2 Signalling communication with remote control

16.3 Fault finding

17. Sensor

17.1 Sensor specifications

LIMIT

Page

11 11 11 14

19 19 20 23 23 23 24 25 25

27 27 27 27 27 27 27 28

31 31 32

18. Accessories

18.1 Grundfos GO Remote

18.2 Communication

18.3 Fitting the CIM module

19. Technical data

20. Disposal

3 3 4 4 4 4 5 6 6

6 7 7 8

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 Grun dfos' 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

Warnin g Prior to installation, read these installation and

operating instructions. Installation and operation must comply with local regulations and accepted codes of good practice.

Warnin g 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.

34 34 35

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

Caution

Note

Max. 95 % RH Enclosure Type 2

may also have other rights which vary from jurisdiction to jurisdiction.

2. Symbols used in this document

Warnin g If these safety instructions are not observed,

it may result in personal injury.

Warnin g If these instructions are not observed, it may lead

to electric shock with consequent risk of serious personal injury or death.

Warnin g The surface of the product may be so hot that it

may cause burns or personal injury.

Warnin g Risk of dropping objects which may cause

personal injury.

Warnin g Escaping vapor involves the risk of personal

injury.

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.

Warnin g Do not use the pump for flammable liquids, such

as diesel oil and gasoline.

Warnin g Do not use the pump for aggressive liquids, such

as acids and sea water.

English (US)

If these safety instructions are not observed, it may result in malfunction or damage to the equipment.

Notes or instructions that make the job easier and ensure safe operation.

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.

TM05 2857 0612

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.

Additives with a density and/or kinematic viscosity higher than those/that of water will reduce the hydraulic performance.

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.

English (US)

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

Note

Caution

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

If the pump is not used during periods of frost, necessary steps must be taken to prevent frost bursts.

Additives with a density and/or kinematic viscosity higher than those/that of water will reduce the hydraulic performance.

3.5 Insulating shells

Insulating shells are available for single-head pumps only.

Limit the heat loss from the pump housing and pipework.

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.

TM05 7662 1413

• 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

Do not insulate the control box or cover the control panel.

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).

TM05 2859 0612

TM05 3055 0912

Fig. 4 Non-return valve

3.7 Nameplate

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

The pump nameplate provides the following information:

Fig. 5 Example of nameplate

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)

TM05 6381 4612

English (US)

1.2 x 8.0 TX200.6 x 3.5 5.0

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

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).

Warnin g Observe local regulations setting limits for

manual lifting or handling.

Fig. 6 Recommended tools

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

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 6472 4712

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

Mount 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

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.

English (US)

TM05 2866 0712

TM05 2915 0612TM05 5837 4112

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 clam p is tightened. See fig. 9.

Fig. 9 Fitting the pump head to the pump housing

English (US)

Caution

4.4 Changing the control box position

Warnin g The warning symbol on the clamp holding the

pump head and pump housing together indicates that there is a risk of personal injury. See s pecific warnings below.

Warnin g When loosening the clamp, do not drop the pump

head.

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

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.

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.

Position the control box in horizontal position so that the Grundfos logo is in vertical

position. The motor shaft must be horizontal.

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 2867 0612

TM05 2868 0612

TM05 2869 0612

TM05 2870 0612

Twin-head pump. Position the clamps so that the gaps point towards the arrows.

They can be in position 3 or 9 o’clock.

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.

Fit and tighten the screw holding the clamp to minimum

6 ± 0.7 ft-lbs (8 ± 1 Nm).

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 2917 0612 - TM05 2873 0612

TM05 2897 1912

TM05 2872 0612

TM05 2874 0412

Single-head pump. Position the clamp so that the gap points towards the arrow.

It can be in position 3 or 9 o’clock.

If insulating the pump manually, do not insulate the control box or cover the control panel.

TM05 2918 0612 - TM05 2871 0612

5. Electrical installation

Note

5.2 Connection to the power supply

Step Action Illustration

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.

Warnin g Never make any connections in the pump control

box unless the electricity supply has been switched off for at least 5 minutes.

Warnin g 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.

• 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.

The number of starts and stops via the power supply must not exceed four times per hour.

Remove the front

cover from the control box.

Locate the power supply plug and conduit adapter in

the box supplied with the pump.

Connect the

conduit adapter to the control box.

Pull the power supply cable through the

conduit adapter and thread on conduit.

English (US)

TM05 2875 0612

TM05 2876 0612

TM05 2877 0612

TM05 2878 0612

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.

Strip the cable

conductors as illustrated.

Connect the cable conductors to the power supply plug.

L - L or L1 Ground - Ground N - N or L2

TM05 5534 3812

TM05 2880 0612

English (US)

Insert the power supply plug into the male plug in

the pump control box.

Tighten the conduit adapter.

Refit the front cover.

TM05 2881 0612

TM05 2882 0612

Fig. 10 Insulation of pump housing and pipework

TM05 5549 3812

5.3 Connection diagram

External switch

Fuse

(min. 10 A, time lag)

ELCB

Note

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

M A

24V

Vcc

Signal

Vcc

Signal

Note

Fig. 11 Example of typical connection, 1 x 230 V ± 10 %, 50/60 Hz

All cables used must be connected in accordance with local regulations.

5.4 Connection to external controllers

English (US)

TM03 2397 0312

Fig. 12 Connection diagram

Warnin g 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.

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.

All cables used must be heat-resistant up to +185 °F (+85 °C).

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.

TM05 2901 1912 - TM05 3343 1212

English (US)

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

S/S

On/off timer

Start/stop

S/S

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

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.

TM05 3338 1212

Contact symbol Function

NC Normally closed NO Normally open

C Common

The functions of the signal relays appear from the table below:

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.

Fig. 14 Digital input

Contact symbol Function

M A

Max. curve

100 % speed

Min. curve

25 % speed

S/S Start/Stop

Frame connection

External start/stop

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

Start/stop

Normal duty

Note: Factory setting with

jumper between S/S and .

TM05 3339 1212

Activated:

• The pump is running.

Stop

External forced max. or min. curve

signal

sensor

Vcc

24V

signal

sensor

Vcc

24V

signal

sensor

Vcc

24V

Vcc

Signal

24V

BMS

PLC

The pump can be forced to operate on the max. or min. curve via the digital input.

Max. curve

Normal duty

Max. curve

Min. curve

Normal duty

Min. curve

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.

English (US)

TM05 2948 0612TM05 2947 1212TM05 2888 0612

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

TM05 3221 0612

Fig. 15 Analog input for external sensor, 0-10 V

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.

Possible settings

Priority

1 Stop 2 Max. curve 3Stop 4Stop 5Max. curve 6Min. curve 7Start 8Max. curve

9Min. curve 10 Min. curve 11 Start

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.

Pump control

panel or

Grundfos GO

Remote

External

signals

Bus signal

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 AUTO

after approx. 5 seconds.

ADAPT

English (US)

TM05 2884 0612

After a few seconds, the pump display will change to the start-up guide.

Pump display at first start-up.

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 AUTO For additional settings, see section 7.

Settings

ADAPT

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 Operating mode See section 13.2

• Normal

• Stop

• Min.

• Max.

Control mode See section 13.3

•AUTO

•FLOW

• 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.

FLOW

LIMIT

• Set FLOWLIMIT

Automatic Night Setback See section 13.5

• Not active

• Active

Relay outputs See section 13.6

• Relay output 1

• Relay output 2

Setpoint influence See section 13.7

• External setpoint function See section 13.7.1

• Temperature influence See section 13.7.2

Bus communication See section 13.8

• Pump number See section 13.8.1

General settings See section 13.9

• Language See section 13.9.1

• Set date and time See section 13.9.2

• Units See section 13.9.3

• Enable/disable settings See section 13.9.4

• Delete history See section 13.9.5

• Define Home display See section 13.9.6

• Display brightness See section 13.9.7

• Return to factory settings See section 13.9.8

• Run start-up guide See section 13.9.9

ADAPT

See section 13.3.1 AUTO See section 13.3.2 FLOW

See section 13.4 FLOW

Setpoint

Operating mode

Control mode

ADAPT

LIMIT

Automatic Night Setback

Relay outputs

Setpoint influence

External setpoint function

Temperature influence

Bus communication

Pump number

General settings

Language

Set date and time

Units

Enable/disable settings

Delete history

Define Home display

Display brightness

Return to factory settings

Run start-up guide

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 FLOW

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 AUTO

Power consumption Not active FLOW

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

LIMIT

Brightness

Return to factory settings

Run start-up guide

Date format, date and time

ADAPT

English (US)

Note

9. Control panel

Warnin g At high liquid temperatures, the pump housing

may be so hot that only the control panel should be touched to avoid burns.

Fig. 19 Control panel

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.

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

TM05 7642 1313

shortcuts with or . The "Home" display can be defined by the user.

See section 13.9.6

Define Home display

12. "Status" menu

TM05 7929 1613

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. "

2. Status

This menu shows the status of the pump and system as well as warnings and alarms. See section 12. "

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. "

Home

" menu.

Status

" menu.

No settings can be made in this menu.

Settings

" menu.

2.1.0.0.0.0 Status

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 .

13. "Settings" menu

Max.

Min.

13.2 Operating mode

English (US)

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

3.1.0.0.0.0 Settings

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

3.1.2.0.0.0 Operating mode

TM05 2446 5111

• Normal: The pump runs according to the selected control mode.

TM05 7925 1613

• Stop: The pump stops.

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 .

• 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. 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.

Control mode Measuring unit

Proportional pressure m, ft Constant pressure m, ft Constant temperature °C, °F, K Constant curve %

English (US)

Note

auto_min

fac

set1

set2

max

25 %

90 %

auto_min

fac

Setting range

set

13.3 Control mode

Navigation

Home > Settings > Control mode

Control mode

•AUTO

•FLOW

• 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 AUTO

FLOW "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

Setback

The FLOW control modes mentioned above. See section 13.4 FLOW

13.3.1 AUTO

The AUTO performance according to the actual system characteristic.

ADAPT

The operating mode must be set to " before a control mode can be enabled.

, can be changed in the "Setpoint" submenu under

ADAPT

Automatic Night

function can also be combined with the last four

LIMIT

ADAPT

control mode continuously adapts the pump

ADAPT

Manual setting of the setpoint is not possible.

Normal

and

LIMIT

A1: Original duty point.

: Lower registered head on the max. curve.

: New duty point after AUTO

: Original setpoint setting.

set1

: New setpoint after AUTO

set2

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

fac.

MAGNA3 xx-80: 14.7 ft (4.5 m)

ADAPT

control.

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)

3.1.3.0.0.0 Control mode

auto_min

The AUTO

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

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

control mode is a form of proportional-pressure

ADAPT

control where the control curves have a fixed origin, H The AUTO

for heating systems and is not recommended for air-conditioning

control mode has been developed specifically

ADAPT

and cooling systems. To reset AU TO

settings

13.3.2 FLOW

When FLOW ensure that the flow never exceeds the entered FLOW

The setting range for the FLOW

, see section 13.9.8

ADAPT

is selected, the pump will run AUTO

ADAPT

is 25 to 90 % of the Q

LIMIT

Return to factory

the pump. The factory setting of the FLOW

AUTO

Fig. 22 FLOW

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

ADAPT

is the flow where the

LIMIT

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 o n pump type.

auto_min

ADAPT

value.

LIMIT

max

and

TM05 3334 1212 TM05 2448 1212

TM05 2452 1312

Fig. 21 AUTO

When the AUTO

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

When the pump registers a lower head on the max. curve, A AUTO lower control curve, H pump will adjust its performance to A

ADAPT

function will automatically select a correspondingly

will start with the factory setting, H

ADAPT

control mode has been enabled, the pump

ADAPT

. See fig. 21.

set2

. If the valves in the system close, the

= H

fac

, corresponding to

set1

, the

Fig. 23 Proportional pressure

13.3.4 Constant pressure

Note

Δt

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).

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).

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.

TM05 2449 0312

Fig. 26 Differential temperature

Fig. 27 Differential temperature

Changing Kp and Ti values are only possible with Grundfos GO.

English (US)

TM05 2451 5111

TM05

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.

See table, fig. 28.

TM05 2451 5111

Fig. 25 Constant temperature

English (US)

[m]

Δt

L2 [m]

Note

H [%]

Q [m

/h]

100 %

Max. curve

Limited

max. curve

Actual duty point

The table shows the suggested controller settings:

System/application

Heating

system

Cooling

system

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 %.

0.5 - 0.5 10 + 5L

0.5 10 + 5L

0.5 - 0.5 30 + 5L

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.

= Distance in [m] between pump and sensor.

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

How to set the PI controller

For most applications, the factory setting of the controller constants K

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 (K Instability can be seen by observing if the measured value

) until the motor becomes unstable.

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

3. Reduce the integral time (T

) to half the value of the value which made the

) until the motor becomes

unstable.

4. Set the integral time (T motor unstable. This is the correct setting of the integral time.

) to twice the value which made the

General rules of thumb:

• If the controller is too slow-reacting, increase K

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

or increasing Ti.

TM05 2446 0312

Fig. 29 Constant curve

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

Fig. 30 Power and pressure limitations influencing the max.

curve

13.4 FLOW

max

limit

25 %

90 %

Setting range

Note

LIMIT

13.5 Automatic Night Setback

English (US)

LIMIT

Navigation

Home > Settings > FLOW

FLOW

LIMIT

• Enable FLOWLIMIT function

• Set FLOWLIMIT.

Setting:

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

[OK].

2. To set the FLOW

, press [OK] to start the setting.

LIMIT

3. Select digit with and and adjust with or .

4. Press [OK] to save.

3.1.5.0.0.0 FLOW

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

3.1.6.0.0.0 Automatic Night Setback

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).

Automatic Night Setback cannot be enabled when the pump is in constant-curve mode.

13.6 Relay outputs

TM05 2445 1212

Fig. 31 FLOW

The FLOW control modes:

• Prop. press.

• Const. press.

• Const. temp.

• Constant curve.

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

The setting range for FLOW pump.

The factory setting of the FLOW AUTO

ADAPT

LIMIT

function can be combined with the following

LIMIT

value.

LIMIT

is 25 to 90 % of the Q

LIMIT

is the flow where the

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

LIMIT

max

of the

3.1.12.0.0.0 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.

English (US)

Note

rpm

Min.

Max.

Note

T [°F]

30 %

68 122 176

T [°C]

20 50 80

100 %

actual

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

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

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.

Before the " enabled, the analog input must be set to "

External setpoint influence

See section 5.5.3 Analog input.

External setpoint function

" via the "

" can be

Assist

" menu.

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

. The setpoint is reduced in

max.

below.

3.1.15.0.0.0 Setpoint influence

Fig. 33 Temperature influence

In the above example, T selected.

= +176 °F (+80 °C) has been

max.

The actual liquid temperature T to be reduced from 100 % to H

causes the setpoint for head

actual

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 T

max.

In systems with a dimensioned flow-pipe temperature of:

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

• above +131 °F (+55 °C), select T

= +122 °F (+50 °C)

max.

= +176 °F (80 °C).

max.

The temperature influence function cannot be used in air-conditioning and cooling systems.

TM05 7946 1613

Fig. 32 External setpoint function, 0-10 V

TM05 3219 1212

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

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".

3.1.18.1.0.0 Pump number

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

English (US)

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

TM05 7947 1613

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].

3.1.19.2.0.0 Set date and time

2. Select unit with or .

3. Press [OK] to enable.

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

3.1.19.3.0.0 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 > 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".

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

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.

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

TM05 7929 1613

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

3.1.19.7.1.0 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.

13.9.8 Return to factory settings

14. "Assist" menu

English (US)

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 t he pump , su ch as language, date and time.

To run the start-up guide, select "Yes" with or and press [OK].

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

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.

Assist

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.

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 stop s 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".

15. Selection of control mode

set

System application

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 AUTO

makes the necessary adjustment to the actual system characteristic.

operating range. During operation, the pump automatically

ADAPT

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

The FLOW This control mode is suitable for systems where a maximum flow limit, FLOW

continuously monitors and adjusts the flow, thus ensuring that the selected FLOW

control mode is a combination of AUTO

ADAPT

and FLOW

LIMIT

, is desired. The pump

LIMIT

is not exceeded.

LIMIT

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 FLOW

control mode without the use of pump throttling valves.

ADAPT

• 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.

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.

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.

In heating systems with a fixed system characteristic, for example d omestic h ot-water systems, the control of the pump according to a constant return-pipe temperature may be relevant.

FLOW

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

LIMIT

Select this control

mode

AUTO

ADAPT

FLOW

ADAPT

Proportional

pressure

Constant pressure

Constant

temperature

English (US)

ΔT

System application

In a heating system where a constant temperature drop across the system is desired, constant differential temperature can be used.

Select this control

mode

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 operat in g mod e is fo r 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.

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.

Constant curve

"Assist" menu

"Multi-pump setup"

16. Fault finding

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.

16.1 Grundfos Eye operating indications

Grundfos Eye Indication Cause

English (US)

No lights on.

Two opposite green indicator light s running in the direction of rotation of the pump.

Two opposite green indicator lights permanently on.

One yellow indicator light running in the direction of rotation of the pump.

One yellow indicator light permanently on.

Two opposite red indicator lights flashing simultaneously.

Power off. Pump not running.

Power on. Pump running.

Power on. Pump not running.

Warning. Pump running.

Warning. Pump stopped.

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.

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.

Case Description Signalling by the centre indicator light

Four or five quick flashes once to signal "I am here".

Flashing continuously with 50 % duty cycle.

Indicator light permanently on.

Wink

Push me

I am connected

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".

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.

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.

English (US)

Caution

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

Pump communication fault (10) Alarm

Forced pumping (29) Alarm

Undervoltage (40, 75) Alarm

Blocked pump (51) Alarm

Dry running (57) Alarm

Internal fault (72, 84, 155, 157) Warning/alarm

Overvoltage (74) Alarm

Internal sensor fault (88) Warning

External sensor fault (93) Warning

Communication fault between different parts of the electronics.

Other pumps or sources force flow through the pump even if the pump is stopped.

Supply voltage to the pump too low.

The pump is blocked. No

No water at the pump inlet or the water contains too much air.

Internal fault in the pump electronics.

Supply voltage to the pump too high.

The pump is receiving a signal from the internal sensor which is outside the normal range.

The pump is receiving a signal from the external sensor which is outside the normal range.

Automatic reset

and restart?

Yes

Corrective actions

Replace the pump, or call GRUNDFOS SERVICE for assistance.

Check the system for defective non-return valves and replace, if necessary. Check the system for correct position of non-return valves, etc.

Check that the power supply is within the specified range.

Dismantle the pump, and remove any foreign matter or impurities preventing the pump from rotating.

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.

Replace the pump, or call GRUNDFOS SERVICE for assistance.

Check that the power supply is within the specified range.

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.

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.

If the power supply cable is damaged, it must be replaced by the manufacturer, the manufacturer’s service partner or a similarly qualified person.

17. Sensor

Nose downwards

5 Nm

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).

Warnin g Before replacing the sensor, make sure that the

pump is stopped and that the system is not pressurized.

English (US)

TM05 3036 0812

17.1 Sensor specifications

17.1.1 Pressure

Maximum differential pressure during operation

Accuracy +32 to +185 °F (0 to +85 °C)

Accuracy +14 to +32 °F and +185 to +266 °F (-10 to 0 °C and +85 to +130 °C)

* Full scale.

17.1.2 Temperature

Temperature range during operation

Accuracy

29 psi / 2 bar / 0.2 MPa

2 % *

3 % *

+14 to +266 °F

(-10 to +130 °C)

± 5.6 °F (± 2 °C)

English (US)

Note

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 radio communication between the pump and the Grundfos GO Remote is encrypted to protect against misuse.

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.

TM05 2710 0612

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.

A gateway is a device that facilitates the transfer of data between two different networks based on different communication protocols.

The following CIM modules are available:

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

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.

TM05 2911 1312

Fig. 36 Reuse of CIM module

18.3 Fitting the CIM module

Warnin g 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.

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

English (US)

TM05 2875 0912

TM05 2914 1112

Fit 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. I

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.

leakage

< 3.5 mA.

Input/output communication

External potential-free contact.

Two digital inputs

Analog input

Two relay outputs

cos φ

The MAGNA3 has a built-in active PFC (Power Factor Correctio n) which gives a cos φ from 0.98 to 0.99, i.e. very close to 1.

Contact load: 5 V, 10 mA. Screened cable. Loop resistance: Maximum 130 Ω.

4-20 mA (load: 150 Ω). 0-10 VDC (load: 78 kΩ).

Internal potential-free changeover contact. Maximum load: 250 V, 2 A, AC1. Minimum load: 5 VDC, 20 mA. Screened cable, depending on signal level.

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.

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

Grundfos companies

L-MAG-TL-09

98459408 0513

ECM: 1112321

www.grundfos.com

www.grundfos.us

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

Grundfos MAGNA3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. Limited warranty

2. Symbols used in this document

3. General information

3.1 Applications

3.2.1 Glycol

3.2 Pumped liquids

3.3 Operating conditions

3.3.1 Liquid temperature

3.3.2 System pressure

3.3.3 Ambient temperature

3.3.4 Sound pressure level

3.3.5 Approvals

3.4 Frost protection

3.5 Insulating shells

3.6 Non-return valve

3.7 Nameplate

3.8 Radio communication

3.9 Tools

4. Mechanical installation

4.1 Installing the pump

4.2 Positioning

4.3 Control box positions

4.4 Changing the control box position

5. Electrical installation

5.2 Connection to the power supply

5.1 Supply voltage

5.3 Connection diagram

5.4 Connection to external controllers

5.5 Input/output communication

5.5.1 Relay outputs

5.5.2 Digital inputs

5.5.3 Analog input

5.6 Priority of settings

6. First start-up

7. Settings

7.1 Overview of settings

8. Menu overview

9. Control panel

11. "Home" menu

12. "Status" menu

10. Menu structure

13. "Settings" menu

13.2 Operating mode

13.1 Setpoint

13.3 Control mode

13.3.3 Proportional pressure

13.3.4 Constant pressure

13.3.5 Constant temperature

13.3.6 Differential temperature

13.3.7 Constant curve

13.5 Automatic Night Setback

13.6 Relay outputs

13.7 Setpoint influence

13.7.1 External setpoint function

13.7.2 Temperature influence

13.8 Bus communication

13.8.1 Pump number

13.9 General settings

13.9.1 Language

13.9.3 Units

13.9.2 Set date and time

13.9.4 Enable/disable settings

13.9.5 Delete history

13.9.6 Define Home display

13.9.7 Display brightness

13.9.8 Return to factory settings

14. "Assist" menu

13.9.9 Run start-up guide

14.1 Assisted pump setup

14.2 Setting of date and time

14.3 Multi-pump setup

14.4 Setup, analog input

14.5 Description of control mode

14.6 Assisted fault advice

14.7 Wireless GENIair

14.8 Multi-pump function