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User Manual: Pump 537324 2 Grundfos Magna3 Owners Manual

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Page Count: 64

GRUNDFOS DATA BOOKLET

MAGNA3

Circulator pumps

60 Hz

Table of contents

2

MAGNA3

1. Product introduction 3

Features and benefits 3

Applications 3

2. Performance range 4

MAGNA3 4

MAGNA3 D single-head operation 5

MAGNA3 D twin-head operation 6

3. Product range 7

Pump selection 7

4. Identification 9

Type key 9

5. Construction 10

Sectional drawing 10

Mechanical construction 11

Motor and electronic controller 11

Pump connections 11

Surface treatment 11

6. Operating conditions 12

Pumped liquids 12

General recommendations 12

Temperatures 12

Pressures 12

Differential pressure and temperature sensor 13

7. Installation 14

Mechanical installation 14

Electrical installation 14

8. Functions 19

System application 19

Functions 26

Operating modes 27

Control modes 27

Additional features for control modes 30

Setting values for control modes 32

Additional operating modes for multi-pump setup 33

Readings and settings on the pump 33

Communication 36

9. Guide to performance curves 40

Curve conditions 40

QR code on pump nameplate 41

10. Performance curves and technical data 42

MAGNA3 32-60 F (N) 42

MAGNA3 32-100 F (N) 43

MAGNA3 40-80 F (N) 44

MAGNA3 40-120 F (N) 45

MAGNA3 40-180 F (N) 46

MAGNA3 50-80 F (N) 47

MAGNA3 50-150 F (N) 48

MAGNA3 65-120 F (N) 49

MAGNA3 65-150 F (N) 50

MAGNA3 D 65-150 F 51

MAGNA3 80-100 F 52

MAGNA3 D 80-100 F 53

MAGNA3 100-120 F 53

MAGNA3 D 100-120 F 55

Technical data 56

11. Accessories 57

Insulating for air-conditioning and cooling systems 57

CIM modules 57

Grundfos GO Remote 58

12. Further product information 59

WebCAPS 59

WinCAPS 60

GO CAPS 61

Product introduction

MAGNA3 1

3

1. Product introduction

The Grundfos MAGNA3 circulator pumps are designed

for circulating liquids in the following systems:

• heating systems

• air-conditioning and cooling systems

• domestic hot water systems

• ground source heat pump systems

• solar heating systems.

Fig. 1 MAGNA3 pump ranges

Features and benefits

Features

•AUTO

ADAPT.

•FLOW

ADAPT and FLOWLIMIT.

• Intuitive user interface with TFT display.

• Proportional pressure control.

• Constant pressure control.

• Constant temperature control.

• Built-in Grundfos differential pressure and

temperature sensor.

• Constant curve duty.

• Max. or min. curve duty.

• Automatic Night Setback.

• Internal motor protection.

• Heat energy meter.

• Work log history.

• Insulating shells supplied with single-head pumps

for heating systems.

• Large temperature range where the liquid

temperature and the ambient temperature are

independent of each other.

Benefits

• Unparalleled energy efficiency.

• Safe selection.

• Simple installation.

• Maintenance free.

• Guided installation.

• Simple assisted troubleshooting.

• Easy system optimization.

• Multi-pump function.

• External control and monitoring enabled via add-on

modules.

• No external motor protection required.

• The complete range is available for a maximum

system pressure of 175 psi (12 bar).

Applications

Heating systems

• Main pump.

• Mixing loops.

• Domestic hot water.

• Heating surfaces.

• Air-conditioning surfaces.

The MAGNA3 circulator pumps are designed for

circulating liquids in systems with variable flows where

it is desirable to optimize the setting of the pump duty

point, thus reducing energy costs.

The pump is especially suitable for installation in

existing systems where the differential pressure across

the pump is too high in periods with reduced flow

demand.

The pump is also suitable for new systems where

automatic adjustment of pump head to actual flow

demand is desired, without using expensive bypass

valves or similar components.

Furthermore, the pump is suitable for systems with hot

water priority as an external signal can immediately

force the pump to operate according to the max. curve,

for example in solar heating systems.

Duty range

TM05 7660 1413

Data MAGNA3 (N)

Single-head pumps MAGNA3 D

Twin-head pumps

Max. flow rate, Q 346 gpm (78.5 m3/h) 570 gpm (150 m3/h)

Max. head, H 60 ft (18 m)

Max. system pressure 175 psi (12 bar) (1.2 MPa)

Liquid temperature +14 to +230 °F (-10 to +110 °C)

Performance range

MAGNA3

2

4

2. Performance range

MAGNA3

Fig. 2 Performance range, MAGNA3

TM05 7654 1413

10 15 20 30 40 50 60 70 80 100 150 200 300 400

Q [US GPM]

6

8

10

12

15

20

30

40

50

60

[ft]

H

3 4 5 6 7 8 9 1010 20 30 40 50 60

Q [m³/h]

2

3

4

5

6

7

8

9

1010

[m]

H

MAGNA3

65-120

50-150

40-120

50-80

40-80

40-180

32-100

32-60

65-150

100-120

80-100

Performance range

MAGNA3 2

5

MAGNA3 D single-head operation

Fig. 3 Performance range, MAGNA3 D single-head operation

TM05 7655 1413

10 15 20 30 40 50 60 70 80 100 150 200 300 400

Q [US GPM]

10

12

15

20

25

30

40

50

[ft]

H

3 4 5 6 7 8 9 1010 20 30 40 50 60

Q [m³/h]

4

5

6

7

8

9

1010

[m]

H

MAGNA3 D

65-150

100-120

80-100

Performance range

MAGNA3

2

6

MAGNA3 D twin-head operation

Fig. 4 Performance range, MAGNA3 D twin-head operation

TM05 3938 1812

10 15 20 30 40 60 80 100100 150 200 300 400 600 800

Q [US GPM]

10

12

15

20

25

30

40

50

[ft]

H

3 4 5 6 7 8 9 1010 20 30 40 50 60 70 80 100100

Q [m³/h]

4

5

6

7

8

9

1010

[m]

H

MAGNA3 D

65-150

100-120

80-100

Product range

MAGNA3 3

7

3. Product range

Pump selection

Frequently, pumps are selected based on a maximum

flow and pressure loss in a system as well as peak

efficiency of the pump. For circulators in variable

demand systems such as a heating system where the

heat load varies with the season and time of day it is

more optimal to select a pump for this varying demand

rather than one specific duty point.

The MAGNA3 has been optimized for variable demand

systems. For variable loads, when possible it is most

ideal to size and select the pump such that the

maximum flow and pressure required is on the right

hand side of the pump performance curve.

This enables the pump to have higher efficiency at

partial load and allows the pumps to slow down more

at these partial loads yielding significant energy

savings.

Pump size

The system characteristic is used together with the

pump’s performance curve for sizing and correct pump

selection.

The selection of pump size should be based on the

following:

• required maximum flow

• maximum pressure loss in the system.

Refer to the system characteristics to determine the

duty point. See fig. 5.

Fig. 5 System characteristic

Operating conditions

When selecting a pump, always verify the operating

conditions are fulfilled. Refer to section Guide to

performance curves on page 40 for:

• liquid quality and temperature

• ambient conditions

• minimum inlet pressure

• maximum operating pressure.

Single-head pump Cast iron Stainless steel (N) Page reference

115 V 208-230 V 115 V 208-230 V

MAGNA3 32-60 F (N) 98126820 98126822 42

MAGNA3 32-100 F (N) 98126824 98126826 43

MAGNA3 40-80 F (N) 98126800 98126828 98126802 98126830 44

MAGNA3 40-120 F (N) 98126804 98126832 98126806 98126834 45

MAGNA3 40-180 F (N) 98126808 98126836 98126810 98126838 46

MAGNA3 50-80 F (N) 98126812 98126840 98126814 98126842 47

MAGNA3 50-150 F (N) 98126816 98126844 98126818 98126846 48

MAGNA3 65-120 F (N) 98124696 98126848 98124702 98126850 49

MAGNA3 65-150 F (N) - 98126852 - 98126854 50

MAGNA3 80-100 F (N) - 98126856 - 98126858 52

MAGNA3 100-120 F (N) - 98126860 - 98126862 54

MAGNA3 D 65-150 F - 98126863 - - 51

MAGNA3 D 80-100 F - 98126864 - - 53

MAGNA3 D 100-120 F - 98126865 - - 55

TM02 2040 3301

Q

Duty point

H

Product range

MAGNA3

3

8

Control modes

•AUTO

ADAPT (factory setting): Is suitable for most

installations. Auto adapt is proportional pressure

control where the pump sets and adapts its own set

point based on maximum system conditions.

•FLOW

ADAPT, FLOWLIMIT: in systems where a flow

limitation is required.

• Proportional pressure control in systems with

considerable pressure loss variation in relation to

large flow variations; i.e. if more than 50 % of

pressure loss is due to friction loss in the pipe

system.

• Constant pressure control in systems with

insignificant pressure loss variation in relation to

large flow variations; i.e. if less than 50 % of

pressure loss is due to friction loss in the pipe

system

• Constant temperature control in heating systems

with a fixed system characteristic, for example

domestic hot water systems.

• Constant curve duty.

Determination of precise setpoint

To determine precise setpoint for proportional pressure

control, consult WebCAPS (www.grundfos.us/

WebCAPS). See fig. 6.

The desired proportional pressure setpoint can be

determined by selecting the duty point on the pump

curve. In the upper right hand corner, the setpoint can

be read.

In order to see the setpoint, in CAPS on the product

detail page, select:

Options>Curve settings>Curve types>Check local

control>Proportional pressure.

Fig. 6 Grundfos WebCAPS tool

Communication

The Grundfos CIM modules (CIM = Communication

Interface Module) enable the MAGNA3 to connect to

standard fieldbus networks, offering substantial

benefits:

• complete process control and monitoring

• modular design, prepared for future requirements

• based on standard functional profiles

• simple configuration and easy installation

• open communication standards

• reading warning and alarm indications.

For further details, see section CIM modules on

page 37.

Fig. 7 Example of typical building management system

(BMS)

Note: A gateway is a device that facilitates the transfer

of data between two different networks based on

different communication protocols.

TM05 8778 2713

[m]

H

2

4

6

8

0

0 5 10 15 20 25 30 35 40

200

400

0

[W]

P1

Q [m³/h]

TM05 2710 1112

Identification

MAGNA3 4

9

4. Identification

Type key

Code Example MAGNA3 (D) 100 -120 (F) (N) 360

Type range

MAGNA3

D

Single-head pump

Twin-head pump

Nominal diameter (DN) of suction and discharge ports [mm]

Maximum head [dm]

F

Pipe connection

Flange

N

Pump housing material

Cast iron

Stainless steel

Port-to-port length [mm]

Construction

MAGNA3

5

10

5. Construction

Sectional drawing

Fig. 8 MAGNA3

Material specification

Fig. 9 Sensor

TM05 2319 0312

Pos. Component Material

1 Outer bearing ring Aluminium oxide

2 Control box Polycarbonate

3Stator housing Aluminium

O-rings EPDM

4 Thrust bearing Aluminium oxide/carbon

5 Bearing plate Stainless steel (304)

6 Neck ring Stainless steel (304)

7 Impeller PES

8 Pump housing Cast iron/stainless steel (316)

9 Rotor can PPS

10 Shaft Stainless steel (316L)

TM05 3035 0812

Pos. Component Material

1 Sealing cap EPDM

2 Housing PPS

3 Printed-circuit board -

4 Cover snap-on PA/TPV

5 Bracket for sensor Stainless steel

1

2

345

Construction

MAGNA3 5

11

Mechanical construction

The MAGNA3 is of the canned-rotor type, i.e. pump

and motor form an integral unit without shaft seal and

with only two gaskets for sealing. The bearings are

lubricated by the pumped liquid.

The pump is characterized by the following:

• controller integrated in the control box

• control panel on the control box

• control box prepared for optional CIM modules

• built-in differential pressure and temperature sensor

• cast-iron or stainless-steel pump housing

• twin-head versions

• no external motor protection required

• insulating shells supplied with single-head pumps

for heating systems.

Motor and electronic controller

The MAGNA3 incorporates a 4-pole synchronous,

permanent magnet motor (PM motor). This motor type

is characterized by higher efficiency than a

conventional asynchronous squirrel cage motor.

The pump speed is controlled by an integrated variable

frequency drive.

A differential pressure and temperature sensor is

incorporated in the pump.

Pump connections

See individual product pages.

Surface treatment

The pump housing and pump head are electrocoated

to improve the corrosion resistance.

Electrocoating includes:

• alkaline cleaning

• pretreatment with zinc phosphate coating

• cathodic electrocoating (epoxy)

• curing of paint film at +392 to +482 °F (+200 to +250

°C).

Color

Color codes for the pump:

Color Code

Red NCS40-50R

Black NCS9000

Operating conditions

MAGNA3

6

12

6. Operating conditions

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 +149 °F (+65 °C) to

eliminate the risk of lime precipitation.

The MAGNA3 pumps can be used for pumping

water/glycol mixtures up to 50 %.

Example of a water/ethylene glycol mixture:

Maximum viscosity: 50 cSt ~ 50 % water / 50 %

ethylene glycol mixture at +14 °F (-10 °C).

The pump is controlled by 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.

General recommendations

Temperatures

Liquid temperature

Ambient temperature

Pressures

Maximum operating pressure

175 psi (12 bar).

Minimum inlet pressure

The following relative minimum pressure must be

available at the pump inlet during operation to avoid

cavitation noise and damage to the pump bearings.

The values in the table below apply to single-head

pumps and twin-head pumps in single-head operation.

In the case of twin-head operation, the required

relative inlet pressure must be increased by 1.45 psi

(0.1 bar) compared to the stated values for single-head

pumps or twin-head pumps in single-head operation.

Note: Actual inlet pressure plus pump pressure

against a closed valve must be lower than the

maximum permissible system pressure.

The relative minimum inlet pressures apply to pumps

installed up to 984 ft (300 m) above sea level. For

altitudes above 984 ft (300 m), the required relative

inlet pressure must be increased by 1.45 psi per 330 ft

(0.1 bar / 0.01 MPa per 100 m) altitude. The MAGNA3

pump is only approved for an altitude of 6560 ft

(2000 m).

Water in heating

systems Water quality according to local standards

Domestic hot water Degree of hardness up to 14 °dH

Water containing

glycol Maximum viscosity = 50 cSt ~ 50 % water /

50 % ethylene glycol at +14 °F (-10 °C)

Application Temperature range

General +14 to +230 °F (-10 to +110 °C)

Domestic hot water systems +150 °F (Up to +65 °C)

recommended

Ambient conditions

Ambient temperature during

operation +32 to +140 °F (0 to +40 °C)

Ambient temperature during

storage and transport -40 to +158 °F (-40 to +70 °C)

Relative air humidity Maximum 95 %

MAGNA3

DN

Liquid temperature

[167 °F (75 °C)] [203 °F (95 °C)] [230 °F (110 °C)]

Inlet pressure [psi (bar)]

32-60/100 1.5 (0.10) 5.0 (0.35) 14.5 (1.0)

40-80 1.5 (0.10) 7.3 (0.50) 16.0 (1.1)

40-120/

150/180 1.5 (0.10) 5.8 (0.40) 14.5 (1.0)

50-80 1.5 (0.10) 1.5 (0.10) 10.2 (0.7)

50-150 2.9 (0.20) 8.7 (0.60) 17.4 (1.2)

65-120 1.5 (0.10) 7.3 (0.50) 16.0 (1.1)

65-150 5.8 (0.40) 11.6 (0.80) 17.4 (1.2)

80-100 7.3 (0.50) 13.1 (0.90) 21.8 (1.5)

100-120 7.3 (0.50) 13.1 (0.90) 21.8 (1.5)

Operating conditions

MAGNA3 6

13

Differential pressure and

temperature sensor

The MAGNA3 incorporates a differential pressure and

temperature sensor. The sensor is located in the pump

housing in a channel between the suction and

discharge ports. The sensors of twin-head pumps are

connected to the same channel and the pumps

therefore register the same differential pressure and

temperature.

Via a cable, the sensor sends an electrical signal for

the differential pressure across the pump and for the

liquid temperature to the controller in the control box.

In case of missing sensor signal, the pump will run at

maximum speed. When the fault has been corrected,

the pump will continue operating according to the

parameters set.

The differential pressure and temperature sensor

offers substantial benefits:

• direct feedback on the pump display

• complete pump control

• measurement of the pump workload for precise and

optimum control resulting in higher energy

efficiency.

Installation

MAGNA3

7

14

7. Installation

Mechanical installation

The MAGNA3 is designed for indoor installation.

The pump must be installed with horizontal motor

shaft.

The pump may be installed in horizontal as well as

vertical pipes.

Fig. 10 Installation positions

Arrows on the pump housing indicate the liquid flow

direction through the pump.

The control box must be in horizontal position with the

Grundfos logo in vertical position. See fig. 10.

This is described in the installation and operating

instructions.

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).

Insulating shells

The insulating shells supplied with single-head

MAGNA3 pumps are for heating systems and should

be fitted as part of the installation.

Insulating shells for air-conditioning and cooling

systems are available as an accessory.

For cooling systems, see section Insulating for

air-conditioning and cooling systems, page 57.

Note: Insulating shells are not available for twin-head

pumps.

Electrical installation

The electrical connection and protection should be

carried out in accordance with local regulations.

• The pump must be connected to an external mains

switch.

• The pump must always be correctly earthed.

• The pump requires no external motor protection.

• The pump incorporates thermal protection against

slow overloading and blocking.

• When switched on via the power supply, the pump

will start pumping after approx. 5 seconds.

Note: The number of starts and stops via the power

supply must not exceed four times per hour.

The pump has a digital input that can be used for

external control of start/stop without switching the

power supply on/off.

The pump mains connection must be made as shown

in the diagrams on the following pages.

Cables

Use screened cables for external on/off switch, digital

input, sensor and setpoint signals.

• All cables used must be heat-resistant up to at least

+185 °F (+85 °C).

• All cables used must be installed in accordance with

EN 60204-1 and EN 50174-2:2000.

TM05 2866 0712

http://GRUNDFOS.COM/MANUAL-MAGNA3

Installation

MAGNA3 7

15

Additional protection

If the pump is connected to an electric installation

where an earth leakage circuit breaker (ELCB) is used

as an additional protection, this circuit breaker must

trip when earth fault currents with DC content

(pulsating DC) occur.

The earth leakage circuit breaker must be marked with

the first or both of the symbols as shown:

Examples of connections

Supply connection

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

As a minimum, a 10 A time-lag fuse must be installed

due to the start-up power of the MAGNA3.

Connection to external controllers

Fig. 12 Example of connections in the control box

Symbol Description

High-sensitivity ELCB, type A, according to

IEC 60775

High-sensitivity ELCB, type B, according to

IEC 60775

TM03 2397 0312

External switch

Fuse

(min. 10 A, time lag)

ELCB

TM05 2673 3812

NC NO C NC NO C

NL

S/S

M

I

M

A

signal

sensor

Vcc

24V IN

Mains connection

Alarm

Operation

Start/stop On/off timer

Analog input

Installation

MAGNA3

7

16

Digital inputs

The digital input can be used for external control of

start/stop or forced max. or min. curve.

Note: If no external on/off switch is connected, the

jumper between terminals Start/Stop (S/S) and frame

( ) should be maintained. This connection is the

factory setting.

Fig. 13 Digital input in control box

External start/stop

The pump can be started or stopped via the digital

input.

External forced max. or min curve

The pump can be forced to operate on the max. or min.

curve via the digital input.

Relay outputs

The pump has 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.

Fig. 14 Relay output in control box

The functions of the signal relays are as shown in the

table below:

TM05 3343 1212

Contact symbol Function

M

AMax. curve

M

IMin. curve

S/S Start/Stop

Frame connection

Start/stop

Normal duty

Stop

Max. curve

Normal duty

Max. curve

S/S

M

I

M

A

S/S

Q

H

S/S

Q

H

M

A

Q

H

M

A

Q

H

Min. curve

Normal duty

Min. curve

TM05 3343 1212

Contact symbol Function

NC Normally closed

NO Normally open

CCommon

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.

Q

H

Q

H

NC N0 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

132

NC NO C

132

NC NO C

12 3

NC NO C

Installation

MAGNA3 7

17

Analog input for external sensor

The analog input can be used for the connection of an

external sensor for measuring temperature, pressure,

flow or other parameter.

The analog input can also be used for an external

signal for the control from a BMS system or similar

control system.

The electrical signal for the input can be 0-10 VDC or

4-20 mA.

The selection of electrical signal (0-10 V or 4-20 mA)

can be changed on the control panel or with the

Grundfos GO Remote.

Fig. 15 Analog input for external sensor or control

In order to optimize the pump performance, external

sensors can advantageously be used in the following

cases:

Fig. 16 Wiring, analog input

Fig. 17 Examples of external sensors

For further details, see section Guide to performance

curves, page 40.

Fig. 18 Example of external signal for the control via BMS

or PLC

TM05 3221 1112

Function/control mode Sensor type

Heat energy meter Temperature sensor

Constant temperature Temperature sensor (external)

Constant pressure remote Pressure sensor (external)

TM06 0882 1114

PIN Description Load

IN Analog input 150 Ω (4-20 mA signal)

78k Ω (0-10 V signal)

24 V 24 V supply to external sensor Max. 22 mA

Ground for external sensor

signal

sensor

Vcc

24V

I

N

-+

Sensor

Sensor

TM05 2947 1212

Pos. Sensor type

1

Differential pressure transmitter,

Grundfos type DPI V.2

1/2" connection and 4-20 mA signal.

2

Relative pressure transmitter,

combined pressure and temperature sensor, Grundfos

type RPI/T G 1/2" connection and 4-20 mA signal.

TM05 2888 0612

24V

IN

Vcc Signal

1

2

24V

BMS

PLC

Installation

MAGNA3

7

18

Electrical connection for external sensor

Fig. 19 Example electrical connections for external sensor

* Common ground for both pressure and temperature signal.

* Power supply (screened cable): SELV or PELV.

TM04 7156 1610

PIN 123 4

Wire color Brown Grey Blue Black

Output

4 to 20 mA + not used - not used

Output

2 x 0 to 10 V +Pressure

signal -* Temperature

signal

1

3

4

2

Functions

MAGNA3 8

19

8. Functions

System application

Heating systems

Fig. 20 Functional drawing of a heating system in a commercial building

Main pumps

Due to variations in the heat demand and water flow

rate, we always recommend to use speed-controlled

MAGNA3 pumps in a heating system, either

single-head pumps connected in parallel or twin-head

pumps. Single-head pumps connected in parallel have

several advantages. In alternating operation, each

pump is sized for 100 % flow. In this operating mode,

the second pump functions as back-up for higher

reliability. As the pumps alternate, an equal number of

operating hours is ensured. Cascade operation of

pumps connected in parallel meets demands in

high-flow systems with low differential temperature

(Δt), and 50 % back-up is ensured at the same time.

The twin-head pump saves installation time and costs.

By speed-controlling all pumps, it is possible to obtain

maximum energy saving as the pumps will run at their

best efficiency point (BEP).

In a variable-flow system, we recommend to control

main pumps in proportional pressure or AUTOADAPT

mode with a differential pressure sensor in the flow

pipe with the lowest pressure. This ensures maximum

energy saving.

By using the FLOWADAPT function to ensure correct

balancing of the system, the need for pump throttling

valves can be reduced significantly.

The built-in heat energy meter allows monitoring of the

heat energy consumption in the system for pure

optimisation purposes.

Air handler heating coils

The performance of heating surfaces is controlled by

the heating-water temperature and flow. For this

purpose, we recommend to install variable-flow mixing

loops at the heating surfaces. A speed-controlled

mixing-loop pump is ideal for adaptation to the varying

load in a heating surface. In this case, the MAGNA3

will have full authority, making external pump throttling

valves superfluous.

Domestic hot water

For domestic hot water circulation, the constant

temperature control mode will ensure a constant

temperature in the recirculation pipe, without the use

of separate thermostatic valves, thus obtaining the

maximum comfort.

TM05 2155 1312

M M

M

M

M

Pos. Description

Main pumps

ABoiler

Air handler heating coils

Domestic hot water

BHot water circulation

CCold water

Mixing loops

DRadiators

EFan coils

FUnderfloor heating

1

2

3

4

Functions

MAGNA3

8

20

Mixing loops

Due to variations in use, flow temperature and heat

demand in different parts of the building, the heating

system should be divided into zones controlled by

independent mixing loops. Due to the flow variations, a

speed-controlled mixing-loop pump will have the

authority in the system. This will help obtain a better

hydraulic balance in the total system. Speed control of

the pump via selection of a control mode, depending

on system application, ensures maximum energy

saving. See section Selection of control mode, page

24.

Advantages of using mixing loops:

• Reduced excessive differential pressure in the

system and hereby reduced risk of overflow.

• Increased control ability as the loop is provided with

the exact flow and temperature demand.

Functions

MAGNA3 8

21

Cooling systems

Fig. 21 Functional drawing of a cooling system in a commercial building

Primary and secondary pumps

Due to variations in the cooling demand and water flow

rate, we recommend to use speed-controlled MAGNA3

pumps in a cooling system, either single-head pumps

connected in parallel or twin-head pumps. Single-head

pumps connected in parallel have several advantages.

In alternating operation, each pump is sized for 100 %

flow. In this operating mode, the second pump

functions as back-up for higher reliability. As the

pumps alternate, an equal number of operating hours

is ensured. Cascade operation of pumps connected in

parallel meets demands in high-flow systems with low

differential temperature (Δt), and 50 % back-up is

ensured at the same time.

The twin-head pump saves installation time and costs.

By speed-controlling all pumps, it is possible to obtain

maximum energy saving as the pumps will run at their

best efficiency point (BEP).

In a variable-flow system, we recommend to control

secondary pumps in proportional pressure or

AUTOADAPT mode with a differential pressure sensor

in the flow pipe with the lowest pressure. This ensures

maximum energy saving.

The built-in heat energy meter allows monitoring of the

heat energy consumption in the system.

Air handler cooling coils

The performance of cooling surfaces is controlled by

the cooling-water temperature and flow. For this

purpose, we recommend to install variable-flow mixing

loops at the cooling surfaces. A speed-controlled

mixing-loop pump is ideal for adaptation to the varying

load in a cooling surface. In this case, the MAGNA3

will have full authority, making external pump throttling

valves superfluous. The FLOWLIMIT ensures that the

rated flow is never exceeded.

Heat recovery system

The heat recovery system is of paramount importance

for the overall energy efficiency of an air-conditioning

or cooling system. Pumps used for this purpose should

be controlled by a setpoint from the building

management system. Due to high load and

temperature variations in the system, it is important to

use variable-speed pumps in a heat recovery system.

Cooling tower

Due to chiller load variations and changes in the

temperature and moisture of the ambient air, the

cooling-tower flow rate is continuously changing. In

order to achieve maximum energy saving,

cooling-tower pumps have to be able to adapt to these

varying conditions. The pumps are controlled by a

temperature setpoint which is measured at the chiller’s

condenser. In this system, the MAGNA3 will have full

authority, making pump throttling valves superfluous.

The FLOWLIMIT ensures that the rated flow is never

exceeded.

TM05 2156 1312

Pos. Description

Primary and secondary pumps

Air handler cooling coils

Heat recovery system

Cooling tower

Mixing loops

1

2

3

4

5

Functions

MAGNA3

8

22

Mixing loops

Due to the risk of condensation, the flow temperature

through a cooling ceiling or floor must never be lower

than the dew point temperature of the indoor air. The

dew point temperature is varying due to variations in

indoor moisture load and outdoor thermal conditions.

The result is that the cooling-water setpoint has to be

controlled. A mixing loop is ideal for obtaining the

correct temperature in order to adapt to the varying

setpoint.

Due to continuous cooling-load variations in the

building cooling zones, the cooling performance in

cooling ceilings and floors is controlled by motor

valves via zone control units, and a speed-controlled

mixing-loop pump should always be used.

Functions

MAGNA3 8

23

Solar heating systems

Fig. 22 Functional drawing of a solar heating system

Main pumps

Solar heating systems operate with very low flows

compared to other heating systems, however, with

relatively large pressure losses. With a conventional

circulator pump, the flow must be minimized with a

valve resulting in a significantly higher power

consumption. To achieve major reductions in power

consumption, the MAGNA3 is optimized with the

FLOWADAPT / FLOWLIMIT control mode for operation

specifically under these conditions.

Ground source heat pump systems (GSHP)

Fig. 23 Ground source heat pump system in a commercial

building

Main pump

The MAGNA3 is optimized for operation as circulator

pump in a closed-loop pipe system which is buried in

the ground and filled with a mixture of water and

antifreeze. The MAGNA3 is therefore ideal for large

ground source heat pump systems for commercial

buildings.

The MAGNA3 is designed for pumping liquids down to

+14 °F (-10 °C). It can cope with all known antifreeze

compositions.

It is very important that all components are highly

energy-efficient. No other circulator pump performs

better in GSHP systems than the MAGNA3 with the

FLOWADAPT / FLOWLIMIT control mode.

Use the benefit of the inputs/outputs of the MAGNA3 to

control the pump together with the heat pump.

Installation and commissioning

When installing MAGNA3, no external pressure sensor

or motor protection is required. Installation is simple

thanks to the built-in differential pressure and

temperature sensor, which enables proportional

pressure control without the installation of a sensor in

the system.

In systems where a differential pressure is desired at a

certain point of the system, an external pressure

sensor must be installed.

Pump selection is based on required flow and

calculated pressure losses. We recommend not to

oversize the pump as it will lead to unnecessarily high

energy consumption.

The MAGNA3 features the FLOWLIMIT function. In

circuits where the MAGNA3 has full authority, the need

for external pump throttling valves is reduced. The

FLOWLIMIT ensures that the rated flow is never

exceeded.

TM05 3421 1312

M

M

TM05 3422 1312

Pos. Description

Heat pump

1

1

Functions

MAGNA3

8

24

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:

• 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.

•Note: The pump cannot reduce the flow on the suction side, but is able to control

that the flow on the discharge side is at least the same as on the suction side. This

is due to the fact that the pump has no built-in valve.

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

– 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

– 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

H

Q

H

Q

Qmax

90 %

Hauto_min

H

fac

Qfac

H

Q

Hset

Hset

2

H

Q

Functions

MAGNA3 8

25

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

Select this control mode if the pump performance is to be controlled according to a

differential temperature in the system where the pump is installed.

This control mode requires two temperature sensors, either the internal temperature

sensor together with an external sensor or two external sensors.

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

H

Q

H

Q

Δt

H

Q

Functions

MAGNA3

8

26

Functions

Page

Operating modes

Normal (control modes enabled) 27

Stop 27

Min. curve 27

Max. curve 27

Control modes

AUTOADAPT (factory setting) 27

FLOWADAPT 28

Proportional pressure 28

Constant pressure 28

Constant temperature 29

Differential temperature 29

Constant curve 29

Additional features for control modes

FLOWLIMIT 30

Automatic Night Setback 31

Additional operating modes for multi-pump setup

Alternating operation 33

Back-up operation 33

Cascade operation 33

Readings and settings on the pump

Control panel and display 33

Operating status 35

Pump performance 35

Warning and alarm 35

Heat energy meter 35

Work log history 35

Input for external sensor 36

Grundfos Eye (status indicator) 36

Communication

Wireless Grundfos GO Remote 36

Wireless GENIair connection 37

Pump information to BMS via CIM modules 37

Digital inputs 36

Relay outputs 36

Analog input 36

Bus via GENIbus 38

Bus via LonWorks 38

Bus via PROFIBUS DP 38

Bus via Modbus RTU 38

Bus via BACnet MS/TP 38

Grundfos Remote Management 38

Functions

MAGNA3 8

27

Operating modes

Fig. 24 Max. or min. curves

Normal: The pump runs according to the selected

control mode.

Note: The control mode and setpoint can be selected

even if the pump is not running in "Normal" 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.

The operating modes can be selected directly by use

of the built-in digital inputs. See section Digital inputs,

page 16.

Control modes

Factory setting

The pumps have been factory-set to AUTOADAPT

without Automatic Night Setback.

The setpoint has been factory-set. See section Setting

values for control modes, page 32.

The factory setting is suitable for most installations.

Note: When switched on via the power supply, the

pump will start in AUTOADAPT after approx. 5 seconds.

If the buttons on the 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.

AUTOADAPT

Recommended for most heating systems.

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.

Fig. 25 AUTOADAPT control

Note: Manual setting of the setpoint is not possible.

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. 25.

When the pump registers a lower head on the max.

curve, A2, the AUTOADAPT function automatically

selects a correspondingly lower control curve, Hset2.

If the valves in the system close, the pump adjusts 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.

TM05 2446 5111

H

Q

Max.

Min.

TM05 2452 1312

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: See page 32.

Hauto_min: A fixed value of 1.5 m.

H

Q

H

auto_min

H

fac

A

1

A

3

A

2

H

set1

H

set2

Functions

MAGNA3

8

28

FLOWADAPT

The typical pump selection is based on required flow

and calculated pressure losses. The pump is typically

oversized by 30 to 40 % to ensure that it can overcome

the pressure losses in the system. Under these

conditions, the full benefit of AUTOADAPT cannot be

obtained.

To adjust the maximum flow of this "oversized" pump,

balancing valves are built into the circuit to increase

the resistance and thus reduce the flow. The

FLOWADAPT function reduces the need for a pump

throttling valve.

Note: This function cannot eliminate the need for

balancing valves in heating systems.

Fig. 26 Reduced need for a pump throttling valve

The FLOWADAPT control mode combines a control

mode and a function:

• The pump is running AUTOADAPT.

• The flow will never exceed a selected FLOWLIMIT

value, which reduces the need for a pump throttling

valve connected in series with the pump.

Fig. 27 FLOWADAPT control

When FLOWADAPT is selected, the pump will run

AUTOADAPT and ensure that the flow never exceeds

the entered FLOWLIMIT value.

The factory setting of the FLOWADAPT is the flow

where the AUTOADAPT factory setting meets the max.

curve. See fig. 27 and section Selection of control

mode, page 24.

Proportional pressure

This control mode is used in systems with relatively

large pressure losses in the distribution pipes. The

head of the pump will increase proportionally to the

flow in the system to compensate for the large

pressure losses in the distribution pipes. The setpoint

can be set with an accuracy of 0.1 meter.

The head against a closed valve is half the setpoint

Hset.

Fig. 28 Proportional pressure control

Constant pressure

We recommend this control mode in systems with

relatively small pressure losses.

The pump head is kept constant, independent of the

flow in the system.

Fig. 29 Constant pressure control

TM05 2685 1212TM05 3334 1312

H

Q

Q

max

90 %

H

auto_min

H

fac

Q

fac

Setting range

TM05 2448 1212TM05 2449 0312

H

Q

Hset

Hset

2

H

Q

Functions

MAGNA3 8

29

Differential temperature

The differential-temperature control mode is available

from model B which will be released in 2014. The

production code is stated on the nameplate. See fig.

30.

Fig. 30 Production code on nameplate

This control mode ensures a constant differential

temperature drop across heating and cooling systems.

In this control mode, the pump will maintain a constant

differential temperature between the pump and the

external sensor. See fig. 31 and fig. 32.

Fig. 31 Differential temperature

Temperature sensor

If the pump is installed in the flow pipe, the internal

temperature sensor can be used. 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.). See fig. 32.

Fig. 32 Differential temperature

Constant temperature

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 is relevant.

Fig. 33 Constant temperature control

The inverse control for cooling application is available

from model B.

Temperature sensor

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

temperature sensor must be installed in the return pipe

of the system. See fig. 34. The sensor must be

installed as close as possible to the consumer

(radiator, heat exchanger, etc.).

Fig. 34 Pump with external sensor

TM05 8798 5113

TM05 2451 5111

H

Q

Δt

TM05 8235 2113TM05 2451 5111 TM05 2615 0312

tF

t

t

R

H

Q

tF

tR

Functions

MAGNA3

8

30

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.).

Fig. 35 Pump with internal sensor

Constant curve

The pump can be set to operate according to a

constant curve, like an uncontrolled pump. See fig. 36.

The desired speed can be set in % of maximum speed

in the range from 25 to 100 %.

Fig. 36 Constant curve duty

Note: If the pump speed is set in the range between

minimum and maximum, the power and pressure are

limited when the pump is running on the max. curve.

This means that the maximum performance can be

achieved at a speed lower than 100 %. See fig. 37.

Fig. 37 Power and pressure limitations influencing the

max. curve

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.

These two operating modes can be selected via the

digital inputs.

Additional features for control

modes

The MAGNA3 offers additional features for the control

modes to meet specific demands.

FLOWLIMIT

Fig. 38 FLOWLIMIT

The setting range for the FLOWLIMIT is 0 to 90 % of the

Qmax of the pump.

Note: Do not set the FLOWLIMIT lower than the

dimensioned duty point.

The FLOWLIMIT function offers the possibility of limiting

the maximum flow delivered by the pump.

The FLOWLIMIT function can be enabled when the

pump is in one of the following control modes:

• proportional pressure

• constant pressure

• constant temperature

• constant curve.

In the flow range between 0 and Qmax, the pump will

run according to the selected control mode.

TM05 2616 0312TM05 2446 5111TM05 4266 2212

tF

tR

H

Q

H

Q

Min.

30%

50%

70%

90%

Limited max. curve

Speed setting from 0 to 100 %

TM05 2445 1312

H

Q

Q

max

Q

limit

90 %

Setting range

Functions

MAGNA3 8

31

When Qmax is reached, the FLOWLIMIT function will

reduce the pump speed to ensure that the flow never

exceeds the FLOWLIMIT set, no matter if the system

requires a higher flow due to a reduced resistance in

the system. See fig. 39, 40 or 41.

Fig. 39 Proportional pressure control with FLOWLIMIT

Fig. 40 Constant pressure control with FLOWLIMIT

Fig. 41 Constant curve with FLOWLIMIT

Automatic Night Setback

Once Automatic Night Setback has been enabled, the

pump automatically changes between normal duty and

night setback (duty at low performance).

When Automatic Night Setback has been enabled, the

pump will run on the min. curve.

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 (10 to 15

°C) within approx. two hours. The temperature drop

must be at least 1.8 °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 (10 °C).

Note: Automatic Night Setback cannot be enabled

when the pump is in constant curve mode.

TM05 2543 0412TM05 2544 0312TM05 2542 0412

H

Q

2

H

set

H

set

Normal proportional pressure

duty point

FLOWLIMIT duty point

H

Q

H

set

Normal constant pressure

duty point

FLOWLIMIT duty point

H

Q

Normal constant curve

duty point

FLOWLIMIT duty point

Functions

MAGNA3

8

32

Setting values for control modes

The setting values for FLOWADAPT and FLOWLIMIT are indicated as percent of Qmax, but the value has to be entered

in m3/h in the "Settings" menu.

The duty ranges for proportional pressure and constant pressure control appear from the individual data sheet.

Constant curve duty: 0 to 100 % speed.

* Stainless steel version available for single head unit only.

Pump type

AUTOADAPT

Hfac Qmax

FLOWADAPT / FLOWLIMIT

Qfac Qmin 25 % Qmax 90 %

[ft (m)] [gpm (m3/h)] [gpm (m3/h)] [gpm (m3/h)] [gpm (m3/h)]

MAGNA3 32-60 F (N) 11.5 (3.5) 48.5 (11.0) 26.0 (5.9) 12.4 (2.8) 43.6 (9.9)

MAGNA3 32-100 F (N) 18.1 (5.5) 57.3 (13.0) 29.5 (6.7) 14.6 (3.3) 51.6 (11.7)

MAGNA3 40-80 F (N) 14.8 (4.5) 94.7 (21.5) 57.2 (13) 23.8 (5.4) 85.4 (19.4)

MAGNA3 40-120 F (N) 21.3 (6.5) 112.2 (25.5) 70.4 (16) 28.2 (6.4) 101.2 (23)

MAGNA3 40-180 F (N) 31.2 (9.5) 125.4 (28.5) 66.0 (15) 31.2 (7.1) 113.1 (25.7)

MAGNA3 50-80 F (N) 14.8 (4.5) 129.8 (29.5) 74.8 (17) 32.6 (7.4) 117.0 (26.6)

MAGNA3 50-150 F (N) 26.2 (8.0) 165.0 (37.5) 88.0 (20) 41.4 (9.4) 148.7 (33.8)

MAGNA3 65-120 F (N) 21.3 (6.5) 209.0 (47.5) 132.0 (30) 52.4 (11.9) 188.3 (42.8)

MAGNA3 (D) 65-150 F (N)* 26.2 (8.0) 248.6 (56.5) 176.0 (40) 62.0 (14.1) 224.0 (50.9)

MAGNA3 (D) 80-100 F (N)* 18.0 (5.5) 297.0 (67.5) 206.8 (47) 74.4 (16.9) 267.5 (60.8)

MAGNA3 (D) 100-120 F (N)* 21.3 (6.5) 345.4 (78.5) 250.8 (57) 86.2 (19.6) 311.1 (70.7)

Functions

MAGNA3 8

33

Additional operating modes for

multi-pump setup

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.

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 equal size and type. Each pump

requires a non-return valve in series with the pump.

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 equal size and type. Each pump

requires a non-return valve in series with the pump.

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.

The back-up of a twin-head pump will start at 90 % and

stop at 30 % performance when operating in constant

pressure mode.

It can be advantageous to choose a twin-head pump,

as the back-up pump will start for a short period in

peak-load situations. If an oversized single-head pump

is chosen, it may run outside its best efficiency range

most of the time.

All pumps in operation will run at equal speed. Pump

changeover is automatic and depends on speed,

operating hours and fault.

Pump system:

• Twin-head pump.

• Two single-head pumps connected in parallel. The

pumps must be of equal size and type. Each pump

requires a non-return valve in series with the pump.

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

"Constant curve".

Readings and settings on the pump

Control panel and display

The MAGNA3 pump features a 4" TFT display with

intuitive and user-friendly interface. The control panel

has self-explanatory push-buttons made of high-quality

silicone for precise navigation in the menu structure.

The control panel is designed to give the user quick

and easy access to pump and performance data on

site.

When the pump is started up for the first time, the user

is presented with a start-up guide enabling easy

setting of the pump. Additionally, the "Assist" menu

can guide the user through the various settings of the

pump.

Fig. 42 Control panel

TM05 3820 1612

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.

Functions

MAGNA3

8

34

Factory setting

The pumps have been factory-set to AUTOADAPT

without Automatic Night Setback.

Start-up guide

The start-up guide is used for the general settings of

the pump. The start-up guide is started the first time

the pump is connected to the power supply.

Note: If there has been no user action after pump

start-up, the pump will automatically leave the start-up

guide after 15 minutes with the language set to

English.

The start-up guide can be run again in the "Settings"

menu. If the start-up guide is run again, all previous

settings will be lost.

"Home" menu

This menu gives an overview of up to four user-defined

parameters or a graphical illustration of a Q/H

performance curve.

This menu offers the following (factory setting):

• Shortcut to Control mode settings

• Shortcut to Setpoint settings

•Flow rate

•Head.

Fig. 43 "Home" menu

"Status" menu

This menu shows the status of the pump and system

as well as warnings and alarms.

Note: No settings can be made in this menu.

This menu offers the following:

•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.

Fig. 44 "Status" menu

"Settings" menu

This menu gives access to all setting parameters. A

detailed setting of the pump can be made in this 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.

Fig. 45 "Settings" menu

Home

StatusSettings

Functions

MAGNA3 8

35

"Assist" menu

The "Assist" menu guides the user through the setting

of the pump. In each submenu, the user is presented

with a guide that assists throughout the setting.

This menu offers the following:

• Step-by-step instructions in how to set up the pump.

• A short description of the six control modes and

recommended applications.

• Assistance in fault correction.

Submenus:

•Assisted pump setup

•Setting of date and time

•Multi-pump setup

•Setup, analog input

•Description of control mode

•Assisted fault advice.

Fig. 46 "Assist" menu

Operating status

"Operating status" shows the current operating mode

and the selected control mode, if any.

Pump performance

"Pump performance" offers the following:

• Q/H graph showing current duty point, flow, head,

power and liquid temperature.

• "Resulting setpoint" shows the setpoint set on the

pump, the external influence and the resulting

setpoint.

• Liquid temperature.

• Speed.

• Operating hours.

Warning and alarm

"Warning and alarm" offers the following:

• Actual warning or alarm, if any.

• Information about when the warning/alarm occurred

and disappeared and about corrective actions.

• Warning and alarm logs.

Heat energy meter

"Heat energy meter" is a monitoring function which

makes it possible to track the heat energy distribution

and consumption within a system. This prevents

excessive energy costs caused by system imbalances.

The internal sensor has an accuracy of ± 1 % in the

general working area. In the "critical" working areas,

the measurement can vary by 10 %. This is one of the

reasons why the heat energy value cannot be used for

billing purposes. However, the value is perfect for

simple optimisation purposes.

The pump requires a temperature sensor in the flow

pipe or return pipe. This temperature sensor is not

supplied with the pump.

Fig. 47 MAGNA3 with built-in heat energy meter

Note: MAGNA3 incorporates a calculator for flow and

flow-pipe temperature.

Work log history

"Work log history" offers the following:

• Every duty point and the operating conditions are

tracked and stored in the pump.

• The 3D work log and duty curve (over time) provide

instant overviews of historical pump performance

and operating conditions.

• The perfect tool for pump optimisation, replacement

and fault finding.

Fig. 48 Example of "Work log history"

Assist

TM05 5367 3612

Work log history

t

kWh

F

t

R

Functions

MAGNA3

8

36

Input for external sensor

An external differential pressure sensor can be used to

control the flow in the system to obtain the externally

set pressure, which results in following benefits:

• Minimises operating costs.

• Prevents valve noise.

• Ensures comfort (enough pressure).

Grundfos Eye

The Grundfos Eye at the top of the control panel is a

pump status indicator light providing information about

the pump operating status.

The indicator light will flash in different sequences and

provide information about the following:

• power on/off

• pump warnings

• pump alarms

• remote control.

The function of the Grundfos Eye is described in detail

in the installation and operating instructions.

Fig. 49 Grundfos Eye

Communication

The MAGNA3 enables communication via the

following:

• wireless Grundfos GO Remote

• fieldbus communication via CIM modules

• digital inputs

• relay outputs

• analog input.

Grundfos GO Remote

Fig. 50 Grundfos GO Remote

The MAGNA3 is designed for wireless communication

with the Grundfos GO Remote.

For more details, see section Grundfos GO Remote,

page 58.

The Grundfos GO Remote offers additional

possibilities of setting and status displays for the

pump.

The Grundfos GO Remote can be used for the

following functions:

• 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.

• Displaying relevant documentation.

http://GRUNDFOS.COM/MANUAL-MAGNA3

TM05 3810 1612

TM05 3825 1712

Functions

MAGNA3 8

37

Wireless GENIair

The pump is designed for multi-pump connection via

the wireless GENIair connection.

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 Multi-pump function.

• Grundfos GO Remote.

See section Grundfos GO Remote.

CIM modules

Fig. 51 Grundfos CIM modules

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 (Building Management System) or

SCADA system.

The CIM module communicates via fieldbus protocols.

See section Available CIM modules, page 38.

Connection to network

The pump can be connected to a LON network via the

wireless GENIair connection or by fitting a CIM

module. Other types of network connections are also

possible. Contact Grundfos for further information on

how to connect to your network.

Grundfos Remote Management

Grundfos Remote Management is an easy-to-install,

low-cost solution for wireless monitoring and

management of Grundfos products. It is based on a

centrally hosted database and a web server with

wireless data collection via GSM/GPRS modem. The

system only requires an internet connection, a web

browser, a GRM modem and an antenna as well as a

contract with Grundfos allowing you to monitor and

manage Grundfos pump systems.

You have wireless access to your account anywhere,

anytime when you have an internet connection, for

example via a smartphone, tablet PC, laptop or

computer. Warnings and alarms can be sent by email

or SMS to your mobile phone or computer.

For CIM communication interface module and GSM

antennas, see section Grundfos Remote Management,

page 57.

TM05 3811 1612

Functions

MAGNA3

8

38

Available CIM modules

Module Fieldbus protocol Description Functions

CIM 050

TM05 3812 1612

GENIbus

The CIM 050 is a Grundfos communication

interface module used for communication

with a GENIbus network.

The CIM 050 has terminals for the GENIbus

connection.

CIM 100

TM05 3813 1612

LonWorks

The CIM 100 is a Grundfos communication

interface module used for communication

with a LonWorks network.

The CIM 100 has terminals for the LonWorks

connection.

Two LEDs are used to indicate the actual status

of the CIM 100 communication.

One LED is used for indication of correct

connection to the pump, and the other is used to

indicate LonWorks communication status.

CIM 150

TM05 3814 1612

PROFIBUS DP

The CIM 150 is a Grundfos communication

interface module used for communication

with a PROFIBUS network.

The CIM 150 has terminals for the PROFIBUS

DP connection.

DIP switches are used to set line termination.

Two hexadecimal rotary switches are used to set

the PROFIBUS DP address.

Two LEDs are used to indicate the actual status

of the CIM 150 communication.

One LED is used for indication of correct

connection to the pump, and the other is used to

indicate PROFIBUS communication status.

CIM 200

TM05 3815 1612

Modbus RTU

The CIM 200 is a Grundfos communication

interface module used for communication

with a Modbus RTU network.

The CIM 200 has terminals for the Modbus

connection.

DIP switches are used to select parity and stop

bits, to select transmission speed and to set line

termination.

Two hexadecimal rotary switches are used to set

the Modbus address.

Two LEDs are used to indicate the actual status

of the CIM 200 communication.

One LED is used for indication of correct

connection to the pump, and the other is used to

indicate Modbus communication status.

CIM 250

TM05 4432 2212

GSM/GPRS

The CIM 250 is a Grundfos communication

interface module used for GSM/GPRS

communication.

The CIM 250 is used to communicate via a

GSM network.

The CIM 250 has a SIM-card slot and an SMA

connection to the GSM antenna.

The CIM 250 also has an internal backup battery.

Two LEDs are used to indicate the actual status

of the CIM 250 communication. One LED is used

for indication of correct connection to the pump,

and the other is used to indicate GSM/GPRS

communication status.

Note: The SIM card is not supplied with the CIM

250. The SIM card from the service provider must

support data/fax service to use call service from

PC Tool or SCADA. The SIM card from the

service provider must support GPRS service to

use Ethernet service from PC Tool or SCADA.

Functions

MAGNA3 8

39

For product numbers, see section CIM modules, page 57.

CIM 270

TM05 4432 2212

Grundfos Remote

Management

The CIM 270 is a Grundfos GSM/GPRS

modem used for communication with a

Grundfos Remote Management system.

It requires a GSM antenna, a SIM card and

a contract with Grundfos.

With the CIM 270 you have wireless access to

your account anywhere, anytime when you have

an internet connection, for example via a

smartphone, tablet PC, laptop or computer.

Warnings and alarms can be sent by e-mail or

SMS to your mobile phone or computer. You will

get a complete status overview of the entire GRM

system. It allows you to plan maintenance and

service based on actual operating data.

CIM 300

TM05 3815 1612

BACnet MS/TP

The CIM 300 is a Grundfos communication

interface module used for communication

with a BACnet MS/TP network.

The CIM 300 has terminals for the BACnet

MS/TP connection.

DIP switches are used to set transmission speed

and line termination and to select the custom

Device Object Instance Number.

Two hexadecimal rotary switches are used to set

the BACnet address.

Two LEDs are used to indicate the actual status

of the CIM 300 communication.

One LED is used for indication of correct

connection to the pump, and the other is used to

indicate BACnet communication status.

CIM 500

TM05 8825 2713

Ethernet

The CIM 500 is a Grundfos communication

interface module used for data

transmission between an industrial

Ethernet network and a Grundfos product.

The CIM 500 supports various industrial Ethernet

protocols. The CIM 500 is configured via the

built-in web server, using a standard web browser

on a PC.

See the specific functional profile on the

DVD-ROM supplied with the Grundfos CIM

module.

Module Fieldbus protocol Description Functions

Guide to performance curves

MAGNA3

9

40

9. Guide to performance curves

Curve conditions

The guidelines below apply to the performance curves

on pages 42 to 55:

• Test liquid: airless water.

• The curves apply to a density of ρ = 61.38 lb/ft3

(983.2 kg/m3) and a liquid temperature of 140 °F

(+60 °C).

• All curves show average values and should not be

used as guarantee curves. If a specific minimum

performance is required, individual measurements

must be made.

• The curves apply to a kinematic viscosity of  =

0.474 mm2/s (0.474 cSt).

• Reference supply voltage: 1 x 230 V, 50 Hz.

• EEI obtained according to EN 16297.

Note: Within the MAGNA3 performance range, the

constant pressure and proportional pressure curves

can be set in steps of 0.1 m head on the control panel

or with the Grundfos GO Remote.

Symbols used on the following pages

Fig. 52 Energy efficiency index (EEI)

The MAGNA3 is energy-optimized and complies with

the EuP Directive (Commission Regulation (EC) No

641/2009) which will be effective as from 1 January

2013.

For MAGNA3 pumps, the average energy efficiency

index (EEI) is 0.18 with values down to 0.17,

categorized as best in class.

Fig. 53 Old energy label

From 1 January 2013, the old A to G energy label will

be replaced by the new energy efficiency index (EEI).

Only the best of today’s A-labelled circulator pumps

will meet the new requirements.

The MAGNA3 with its AUTOADAPT function is the

preferred choice for large heating systems and a true

efficiency frontrunner.

Figure 54 shows the energy consumption index for a

typical circulator pump compared to the various EEI

limits.

Fig. 54 Energy consumption index

With an energy efficiency index (EEI) well below the

EuP benchmark level. With AUTOADAPT the savings

can be as much as 85 %, compared to a typical

circulator pump and thus a remarkably fast return on

investment. This means, of course, that the MAGNA3

more than meets the standards of the EuP legislation.

TM05 2682 0412

BEST

in class

BEST

in class

TM05 3936 1712TM05 3935 1712

Index

10

0

20

30

40

50

80

60

90

70

100

Typical

circulator

pump

EuP

2013

EuP

2015

EuP

benchmark

level

MAGNA3

labelled

labelled

EEI = 0.27

EEI = 0.23

EEI = 0.20

EEI = 0.17

Typical

circulator

pump

EuP

2013

EuP

2015

EuP

benchmark

level

MAGNA3

Guide to performance curves

MAGNA3 9

41

For more information about the new energy directive,

please visit:

Fig. 55 Grundfos blueflux®

The Grundfos blueflux® label is your guarantee that

the MAGNA3 incorporates the most energy-efficient

motor currently available. Grundfos blueflux® motors

are designed to cut the power consumption by up to 60

% and thus reduce CO2 emissions and operating

costs.

QR code on pump nameplate

Fig. 56 QR code on pump nameplate

With the Grundfos GO Remote or a smartphone, it is

possible to get the following information about the

MAGNA3:

• product photo

• pump performance curves

• dimensional sketches

• wiring diagram

• quotation text

• technical data

• service parts list

• PDF files, such as data booklet and installation and

operating instructions.

TM05 2683 0412

http://energy.Grundfos.com

TM05 2683 0412

TM05 3826 1712

Performance curves and technical data

10

42

MAGNA3Performance curves and technical data

10. Performance curves and technical data

MAGNA3 32-60 F (N) 1 x 115-230 V, 50/60 Hz

For product numbers, see page 7.

TM06 0657 0714

0 5 10 15 20 25 30 Q [US GPM]

0

4

8

12

16

20

24

[ft]

H

0

2

4

6

8

10

[psi]

p

MAX

MIN

AUTOADAPT

0 5 10 15 20 25 30 Q [US GPM]

0

20

40

60

80

100

120

140

[W]

P1

0 2 4 6 8 Q [m³/h]

MAX

MIN

2m

5m

0 5 10 15 20 25 30 Q [US GPM]

0

4

8

12

16

20

24

[ft]

H

0

2

4

6

8

10

[psi]

p

MAGNA3 32-60 F (N)

MAX

MIN

0 5 10 15 20 25 30 Q [US GPM]

0

20

40

60

80

100

120

140

[W]

P1

0 2 4 6 8 Q [m³/h]

MAX

MIN

1m

5m

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.28 8.5 0.09 9

Max. 1.01 107.7 0.91 110

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

12.3 (5.5) 14.4 (6.5) 0.46 (0.014)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.18

TM06 0734 0814

Pump type Dimensions [in (mm)]

MAGNA3 32-60 F (N)

L1 L5 L6 B1 B2 B4 B6 B7 D1

6.50 (165) 6.23 (158) 6.62 (168) 2.29 (58) 4.38 (111) 2.72 (69) 4.18 (106) 4.18 (106) 1.26 (32)

D2 D3 D4 D5 H1 H2 H3 H4

1.82 (46) 2.29 (58) 3.15 (80) 0.46 (11.5) 2.13 (54) 7.37 (187) 2.49 (241) 2.76 (70)

Performance curves and technical data

10

43

MAGNA3 Performance curves and technical data

MAGNA3 32-100 F (N) 1 x 115-230 V, 50/60 Hz

For product numbers, see page 7.

TM06 0659 0714

0 5 10 15 20 25 30 35 40 Q [US GPM]

0

5

10

15

20

25

30

35

40

[ft]

H

0

2

4

6

8

10

12

14

16

[psi]

p

MAX

MIN

AUTOADAPT

0 5 10 15 20 25 30 35 40 Q [US GPM]

0

20

40

60

80

100

120

140

160

180

200

[W]

P1

0 2 4 6 8 10 Q [m³/h]

MAX

MIN

2 m

9m

0 5 10 15 20 25 30 35 40 Q [US GPM]

0

5

10

15

20

25

30

35

40

[ft]

H

0

2

4

6

8

10

12

14

16

[psi]

p

MAGNA3 32-100 F (N)

MAX

MIN

0 5 10 15 20 25 30 35 40 Q [US GPM]

0

20

40

60

80

100

120

140

160

180

200

[W]

P1

0 2 4 6 8 10 Q [m³/h]

MAX

MIN

1m

9m

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.29 9.7 0.09 9

Max. 1.61 178.3 1.47 180

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

12.3 (5.5) 14.4 (6.5) 0.46 (0.014)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.18

TM06 0734 0814

Pump type Dimensions [in (mm)]

MAGNA3 32-100 F (N)

L1 L5 L6 B1 B2 B4 B6 B7 D1

6.50 (165) 6.23 (158) 6.62 (168) 2.29 (58) 4.38 (111) 2.72 (69) 4.18 (106) 4.18 (106) 1.26 (32)

D2 D3 D4 D5 H1 H2 H3 H4

1.82 (46) 2.29 (58) 3.15 (80) 0.46 (11.5) 2.13 (54) 7.37 (187) 2.49 (241) 2.76 (70)

Performance curves and technical data

10

44

MAGNA3Performance curves and technical data

MAGNA3 40-80 F (N) 1 x 115 & 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8103 1214

0 10 20 30 40 50 60 Q [US GPM]

0

4

8

12

16

20

24

28

32

[ft]

H

0

2

4

6

8

10

12

[psi]

p

MAX

MIN

AUTOADAPT

0 10 20 30 40 50 60 Q [US GPM]

0

50

100

150

200

250

300

[W]

P1

0 2 4 6 8 10 12 14 16 Q [m³/h]

MAX

MIN

0 10 20 30 40 50 60 Q [US GPM]

0

4

8

12

16

20

24

28

32

[ft]

H

0

2

4

6

8

10

12

[psi]

p

MAGNA3 40-80 F (N)

MAX

MIN

0 10 20 30 40 50 60 Q [US GPM]

0

50

100

150

200

250

300

[W]

P1

0 2 4 6 8 10 12 14 16 Q [m³/h]

MAX

MIN

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.3 16 0.19 16

Max. 2.45 276 1.20 265

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

35 (15.9) 41 (18.7) 1.41 (0.04)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.19

TM05 7651 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D4

D3

D2

D1

D5

Pump type Dimensions [in (mm)]

MAGNA3 40-80 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

8.5 (216) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 4.37 (111) 4.37 (111) 1.57 (40) 1.93 (49)

D3 D4 D5 H1 H2 H3 H4 H6

2.4 (60) 3.15 (80) 0.5 (12.8) - 11.97 (304) - 2.76 (70) 1.97 (50)

Performance curves and technical data

10

45

MAGNA3 Performance curves and technical data

MAGNA3 40-120 F (N) 1 x 115 & 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8104 1214

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

2

4

6

8

10

12

14

16

18

[psi]

p

MAX

MIN

AUTOADAPT

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

50

100

150

200

250

300

350

400

450

500

[W]

P1

0 2 4 6 8 10 12 14 16 18 20 Q [m³/h]

MAX

MIN

2 m

10m

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

2

4

6

8

10

12

14

16

18

[psi]

p

MAGNA3 40-120 F (N)

MAX

MIN

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

50

100

150

200

250

300

350

400

450

500

[W]

P1

0 2 4 6 8 10 12 14 16 18 20 Q [m³/h]

MAX

MIN

1m

10m

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.26 16 0.19 16

Max. 3.88 442 1.95 440

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

35 (15.9) 41 (18.7) 1.41 (0.04)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.18

TM05 7651 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D4

D3

D2

D1

D5

Pump type Dimensions [in (mm)]

MAGNA3 40-120 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

8.5 (216) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 4.37 (111) 4.37 (111) 1.57 (40) 1.93 (49)

D3 D4 D5 H1 H2 H3 H4 H6

2.4 (60) 3.15 (80) 0.5 (12.8) - 11.97 (304) - 2.76 (70) 1.97 (50)

Performance curves and technical data

10

46

MAGNA3Performance curves and technical data

MAGNA3 40-180 F (N) 1 x 115 & 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8105 1214

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

10

20

30

40

50

60

70

[ft]

H

0

5

10

15

20

25

30

[psi]

p

MAX

MIN

AUTOADAPT

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

100

200

300

400

500

600

700

[W]

P1

0 2 4 6 8 10 12 14 16 18 20 22 Q [m³/h]

MAX

MIN

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

10

20

30

40

50

60

70

[ft]

H

0

5

10

15

20

25

30

[psi]

p

MAGNA3 40-180 F (N)

MAX

MIN

0 10 20 30 40 50 60 70 80 Q [US GPM]

0

100

200

300

400

500

600

700

[W]

P1

0 2 4 6 8 10 12 14 16 18 20 22 Q [m³/h]

MAX

MIN

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.26 16 0.18 16

Max. 5.39 614 2.68 607

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

35 (15.9) 41 (18.7) 1.41 (0.04)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.18

TM05 7651 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D4

D3

D2

D1

D5

Pump type Dimensions [in (mm)]

MAGNA3 40-180 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

8.5 (216) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 4.37 (111) 4.37 (111) 1.57 (40) 1.93 (49)

D3 D4 D5 H1 H2 H3 H4 H6

2.4 (61) 3.15 (80) 0.5 (12.8) - 11.97 (304) - 2.76 (70) 1.97 (50)

Performance curves and technical data

10

47

MAGNA3 Performance curves and technical data

MAGNA3 50-80 F (N) 1 x 115 & 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8106 1214

0 10 20 30 40 50 60 70 80 90 100 Q [US GPM]

0

4

8

12

16

20

24

28

32

[ft]

H

0

2

4

6

8

10

12

[psi]

p

MAX

MIN

AUTOADAPT

0 10 20 30 40 50 60 70 80 90 100 Q [US GPM]

0

50

100

150

200

250

300

350

400

[W]

P1

0 2 4 6 8 10 12 14 16 18 20 22 24 26Q [m³/h]

MAX

MIN

0 10 20 30 40 50 60 70 80 90 100 Q [US GPM]

0

4

8

12

16

20

24

28

32

[ft]

H

0

2

4

6

8

10

12

[psi]

p

MAGNA3 50-80 F (N)

MAX

MIN

0 10 20 30 40 50 60 70 80 90 100 Q [US GPM]

0

50

100

150

200

250

300

350

400

[W]

P1

0 2 4 6 8 10 12 14 16 18 20 22 24 26Q [m³/h]

MAX

MIN

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.31 18.5 0.22 18.5

Max. 2.81 318 1.46 325

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

37 (17.0) 45 (20.4) 1.77 (0.05)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.18

TM05 7652 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D1

D2

D3

D4

ØD5

Pump type Dimensions [in (mm)]

MAGNA3 50-80 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

9.45 (240) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 5 (127) 5 (127) 1.97 (50) 3.90 (99)

D3 D4 D5 H1 H2 H3 H4 H6

4.33/4.92 (110/125) 6.5 (165) 0.55/0.75 (14/19) 2.8 (71) 12.05 (306) 14.84 (377) 3.82 (97) 2.05 (52)

Performance curves and technical data

10

48

MAGNA3Performance curves and technical data

MAGNA3 50-150 F (N) 1 x 115 & 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8107 1214

0 20 40 60 80 100 120 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

50

55

[ft]

H

0

4

8

12

16

20

[psi]

p

MAX

MIN

AUTOADAPT

0 20 40 60 80 100 120 Q [US GPM]

0

100

200

300

400

500

600

700

[W]

P1

0 5 10 15 20 25 30 Q [m³/h]

MAX

MIN

0 20 40 60 80 100 120 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

50

55

[ft]

H

0

4

8

12

16

20

[psi]

p

MAGNA3 50-150 F (N)

MAX

MIN

0 20 40 60 80 100 120 Q [US GPM]

0

100

200

300

400

500

600

700

[W]

P1

0 5 10 15 20 25 30 Q [m³/h]

MAX

MIN

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.31 18.5 0.23 18.5

Max. 5.54 630 2.78 630

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

40 (18.3) 49 (22.0) 1.77 (0.05)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.17

TM05 7652 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D1

D2

D3

D4

ØD5

Pump type Dimensions [in (mm)]

MAGNA3 50-150 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

11.02 (280) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 5 (127) 5 (127) 1.97 (50) 3.90 (99)

D3 D4 D5 H1 H2 H3 H4 H6

4.33/4.92 (110/125) 6.5 (165) 0.55/0.75 (14/19) 2.83 (72) 12.05 (306) 14.9 (378) 3.82 (97) 2.05 (52)

Performance curves and technical data

10

49

MAGNA3 Performance curves and technical data

MAGNA3 65-120 F (N) 1 x 115 & 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8108 1214

0 20 40 60 80 100 120 140 160Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

4

8

12

16

[psi]

p

MAX

MIN

AUTOADAPT

0 20 40 60 80 100 120 140 160Q [US GPM]

0

100

200

300

400

500

600

700

800

900

[W]

P1

0 5 10 15 20 25 30 35 40 Q [m³/h]

MAX

MIN

0 20 40 60 80 100 120 140 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

4

8

12

16

[psi]

p

MAGNA3 65-120 F (N)

MAX

MIN

0 20 40 60 80 100 120 140 Q [US GPM]

0

100

200

300

400

500

600

700

800

900

[W]

P1

0 5 10 15 20 25 30 35 40 Q [m³/h]

MAX

MIN

Proportional pressure Constant pressure

Speed I1/1 [A] 115 V P1 [W] 115 V I1/1 [A] 230 V P1 [W] 230 V

Min. 0.36 20.5 0.18 20.5

Max. 6.67 772 3.38 769

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

46 (21.0) 54 (24.7) 2.12 (0.06)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.17

TM05 7652 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D1

D2

D3

D4

ØD5

Pump type Dimensions [in (mm)]

MAGNA3 65-120 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

13.4 (340) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 5.24 (133) 5.24 (133) 2.56 (65) 4.65 (118)

D3 D4 D5 H1 H2 H3 H4 H6

5.0/5.51 (127/140) 7.28 (185) 0.63/0.75 (16/19) 2.91 (74) 12.28 (312) 15.2 (386) 3.7 (94) 2.32 (59)

Performance curves and technical data

10

50

MAGNA3Performance curves and technical data

MAGNA3 65-150 F (N) 1 x 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8109 1214

0 20 40 60 80 100 120140 160180 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

50

55

[ft]

H

0

4

8

12

16

20

[psi]

p

MAX

MIN

AUTOADAPT

0 20 40 60 80 100 120140 160180 Q [US GPM]

0

200

400

600

800

1000

1200

1400

1600

[W]

P1

0 5 10 15 20 25 30 35 40 45 Q [m³/h]

MAX

MIN

2m

13m

0 20 40 60 80 100120 140 160180 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

50

55

[ft]

H

0

4

8

12

16

20

[psi]

p

MAGNA3 65-150 F (N)

MAX

MIN

0 20 40 60 80 100120 140 160180 Q [US GPM]

0

200

400

600

800

1000

1200

1400

1600

[W]

P1

0 5 10 15 20 25 30 35 40 45 Q [m³/h]

MAX

MIN

1m

13m

Proportional pressure Constant pressure

Speed P1 [W] I1/1 [A]

Min. 29 0.30

Max. 1301 5.68

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

53 (24.0) 61 (27.8) 2.12 (0.06)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Also available with: Stainless-steel pump housing, type N

Specific EEI: 0.17

TM05 7652 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D1

D2

D3

D4

ØD5

Pump type Dimensions [in (mm)]

MAGNA3 65-150 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

13.4 (340) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 5.24 (133) 5.24 (133) 2.56 (65) 4.65 (118)

D3 D4 D5 H1 H2 H3 H4 H6

5.0/5.51 (127/140) 7.28 (185) 0.63/0.75 (16/19) 2.91 (74) 12.28 (312) 15.2 (386) 3.7 (94) 2.32 (59)

Performance curves and technical data

10

51

MAGNA3 Performance curves and technical data

MAGNA3 D 65-150 F 1 x 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8112 1214

0 20 40 60 80 100 120 140 160 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

50

55

[ft]

H

0

4

8

12

16

20

[psi]

p

MAX

MIN

AUTOADAPT

0 20 40 60 80 100 120 140 160 Q [US GPM]

0

200

400

600

800

1000

1200

1400

[W]

P1

0 5 10 15 20 25 30 35 40 Q [m³/h]

MAX

MIN

0 40 80 120160 200240 280320 360 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

50

55

[ft]

H

0

4

8

12

16

20

[psi]

p

MAGNA3 D 65-150 F

MAX

Constant Pressure Cascade

0 40 80 120160 200240 280320 360 Q [US GPM]

0

400

800

1200

1600

2000

2400

2800

[W]

P1

0 10 20 30 40 50 60 70 80 90 Q [m³/h]

MAX

Proportional pressure Constant pressure

Speed P1 [W] I1/1 [A]

Min. 29 0.30

Max. 1301 5.68

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

98 (44.6) 118 (53.7) 2.12 (0.06)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Specific EEI: 0.17

TM05 2205 2214

Pump type Dimensions [in (mm)]

MAGNA3 D 65-150 F

L1 L2 L3 L4 L5 B1 B3 B4 B5

13.4 (340) 8.58 (218) 3.62 (92) 3.62 (92) 8.03 (204) 3.31 (84) 20.55 (522) 8.98 (228) 11.57 (294)

D1 D2 D3 D4 D5 D5 (2) M M1 H1

2.56 (65) 4.69 (119) 5.12/5.71 (130/145) 7.28 (185) 0.55 (14) 0.75 (19) M12 Rp 1/4 3.03 (77)

Performance curves and technical data

10

52

MAGNA3Performance curves and technical data

MAGNA3 80-100 F 1 x 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8110 1214

0 40 80 120 160 200 Q [US GPM]

0

5

10

15

20

25

30

35

40

[ft]

H

0

4

8

12

16

[psi]

p

MAX

MIN

AUTOADAPT

0 40 80 120 160 200 Q [US GPM]

0

200

400

600

800

1000

1200

[W]

P1

0 10 20 30 40 50 Q [m³/h]

MAX

MIN

0 40 80 120 160 200 Q [US GPM]

0

5

10

15

20

25

30

35

40

[ft]

H

0

4

8

12

16

[psi]

p

MAGNA3 80-100 F

MAX

MIN

0 40 80 120 160 200 Q [US GPM]

0

200

400

600

800

1000

1200

[W]

P1

0 10 20 30 40 50 Q [m³/h]

MAX

MIN

Proportional pressure Constant pressure

Speed P1 [W] I1/1 [A]

Min. 31 0.32

Max. 1041 4.60

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

63 (28.8) 72 (32.6) 2.47 (0.07)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Specific EEI: 0.17

TM05 7652 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D1

D2

D3

D4

ØD5

Pump type Dimensions [in (mm)]

MAGNA3 80-100 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

14.17 (360) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 6.42 (163) 6.42 (163) 3.15 (80) 5.2 (132)

D3 D4 D5 H1 H2 H3 H4 H6

5.91 (150) 7.87 (200) 0.75 (19) 3.7 (94) 12.52 (318) 16.22 (412) 4.53 (115) 2.6 (66)

Performance curves and technical data

10

53

MAGNA3 Performance curves and technical data

MAGNA3 D 80-100 F 1 x 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8113 1913

0 40 80 120 160 200 Q [US GPM]

0

5

10

15

20

25

30

35

40

[ft]

H

0

4

8

12

16

[psi]

p

MAX

MIN

AUTOADAPT

0 40 80 120 160 200 Q [US GPM]

0

200

400

600

800

1000

1200

[W]

P1

0 10 20 30 40 50 Q [m³/h]

MAX

MIN

0 100 200 300 400 500 Q [US GPM]

0

5

10

15

20

25

30

35

40

[ft]

H

0

4

8

12

16

[psi]

p

MAGNA3 D 80-100 F

MAX

Constant Pressure Cascade

0 100 200 300 400 500 Q [US GPM]

0

400

800

1200

1600

2000

2400

[W]

P1

0 20 40 60 80 100 120 Q [m³/h]

MAX

Proportional pressure Constant pressure

Speed P1 [W] I1/1 [A]

Min. 32 0.32

Max. 1052 4.62

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

114 (51.6) 140 (63.4) 2.47 (0.07)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Specific EEI: 0.17

TM05 2205 2214

Pump type Dimensions [in (mm)]

MAGNA3 D 80-100 F

L1 L2 L3 L4 L5 B1 B3 B4 B5

14.17 (360) 8.58 (218) 4.02 (102) 4.02 (102) 8.03 (204) 3.31 (84) 21.18 (538) 9.61 (244) 11.57 (294)

D1 D2 D3 D3 (2) D4 D5 M M1 H1

3.15 (80) 5.04 (128) 5.91 (150) 6.30 (160) 7.87 (200) 0.75 (19) M12 Rp 1/4 3.82 (97)

Performance curves and technical data

10

54

MAGNA3Performance curves and technical data

MAGNA3 100-120 F 1 x 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8111 1214

0 40 80 120 160 200 240 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

4

8

12

16

[psi]

p

MAX

MIN

AUTOADAPT

0 40 80 120 160 200 240 Q [US GPM]

0

200

400

600

800

1000

1200

1400

1600

1800

[W]

P1

0 10 20 30 40 50 60 Q [m³/h]

MAX

MIN

0 40 80 120 160 200 240 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

4

8

12

16

[psi]

p

MAGNA3 100-120 F

MAX

MIN

0 40 80 120 160 200 240 Q [US GPM]

0

200

400

600

800

1000

1200

1400

1600

1800

[W]

P1

0 10 20 30 40 50 60 Q [m³/h]

MAX

MIN

Proportional pressure Constant pressure

Speed P1 [W] I1/1 [A]

Min. 31 0.32

Max. 1576 6.97

The pump incorporates overload protection.

Net weights [lbs (kg)\ Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

73 (33.1) 82 (37.0) 3.53 (0.1)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Specific EEI: 0.17

TM05 7650 1413

B2

L5

L1

B7

B4

B6

H3

H1 H6

H4 H2

B1

D4

D3

D2

D1

D5

Pump type Dimensions [in (mm)]

MAGNA3 100-120 F (N)

L1 L5 B1 B2 B4 B6 B7 D1 D2

17.72 (450) 8.03 (204) 3.31 (84) 6.46 (164) 2.87 (73) 7.01 (178) 7.01 (178) 3.94 (100) 6.14 (156)

D3 D4 D5 H1 H2 H3 H4 H6

7.52 (191) 8.66 (220) 0.75 (19) 4.02 (102) 12.99 (330) 17.01 (432) 4.72 (120) 3.11 (79)

Performance curves and technical data

10

55

MAGNA3 Performance curves and technical data

MAGNA3 D 100-120 F 1 x 208-230 V, 50/60 Hz

For product numbers, see page 7.

TM05 8121 1913

0 40 80 120 160 200 240 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

4

8

12

16

[psi]

p

MAX

MIN

AUTOADAPT

0 40 80 120 160 200 240 Q [US GPM]

0

200

400

600

800

1000

1200

1400

1600

1800

[W]

P1

0 10 20 30 40 50 60 Q [m³/h]

MAX

MIN

0 100 200 300 400 500 Q [US GPM]

0

5

10

15

20

25

30

35

40

45

[ft]

H

0

4

8

12

16

[psi]

p

MAGNA3 D 100-120 F

MAX

Constant Pressure Cascade

0 100 200 300 400 500 Q [US GPM]

0

400

800

1200

1600

2000

2400

2800

3200

3600

[W]

P1

0 20 40 60 80 100 120 140 Q [m³/h]

MAX

Proportional pressure Constant pressure

Speed P1 [W] I1/1 [A]

Min. 35 0.35

Max. 1582 6.98

The pump incorporates overload protection.

Net weights [lbs (kg)] Gross weights [lbs (kg)] Ship. vol. [ft3 (m3)]

133 (60.4) 161 (72.8) 3.53 (0.1)

System pressure: Max. 175 psi (12 bar)

Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)

Specific EEI: 0.17

TM05 7701 1214

D4

D3

D2

D1

D5

Pump type Dimensions [in (mm)]

MAGNA3 D 100-120 F

L1 L2 L3 L4 L5 B1 B3 B4 B5

17.72 (450) 9.57 (243) 5.79 (147) 5.79 (147) 8.03 (204) 3.31 (84) 21.69 (551) 9.92 (252) 11.77 (299)

D1 D2 D3 D4 D5 M M1 H1 H2

3.94 (100) 6.3 (160) 6.69 (170) 8.66 (220) 0.75 (19) M12 Rp 1/4 4.06 (103) 12.99 (330)

Performance curves and technical data

10

56

MAGNA3Performance curves and technical data

Technical data

Electrical data

Sound pressure data

External sensors

Adapters

Blanking flange*

* A blanking flange is used to blank off the opening when one of the

pumps of a twin-head pump is removed for service to enable

uninterrupted operation of the other pump.

Pump type MAGNA3 (D)

Enclosure class Type 2

Insulation class F.

Supply voltage 1 x 115 V ± 10 %, 50/60 Hz, PE; 1 x 208-230 V ± 10 %, 50/60 Hz, PE

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: > 10 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.

Bus input

Grundfos Communication Interface Modules (add-on CIM modules) for

•GENIbus

• LonWorks

•Profibus DP

•Modbus RTU

• BACnet MS/TP

• Grundfos Remote Management.

Earth leakage current Ileakage < 3.5 mA.

The leakage currents are measured in accordance with EN 60335-1.

EMC EN 55014-1:2006, EN 55014-2:1998, EN 61800-3-3:2008 and EN 61000-3-2:2006.

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

Consumption then 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.

4 W, when pump is stopped and no activity.

Sound pressure level ≤ 43 dB(A)

Sensor Type Measuring range

[°F (°C)] Power supply

[VDC] Transmitter output

[V] Process connection Product

number

Delta T sensor RPI/T +32 to +248 °F

(0 to +120 °C) 11 to 30 0 - 10 V G1/2 - 1/2" NPT 98477669

G1/2 - 1/4" NPT 98477668

Sensor Type Measuring range

[psi] Measuring range

[bar] Transmitter output

[mA] Power supply

[VDC] Process

connection Product number

Pressure

transmitter RPI

0-9 (0 - 0.6)

4 to 20 12-to 30 G 1/2

97748907

0-15 (0 - 1.0) 97748908

0-25 (0 - 1.6) 97748909

0-35 (0 - 2.5) 97748910

Adapter

Adapter for 1/4" NPT 98344015

Adapter for 1/4" NPT 98255244

Blanking flange Product number

All pumps 98159372

Accessories

MAGNA3 11

57

11. Accessories

Insulating for air-conditioning and

cooling systems

For cooling applications, if the supplied insulation shell

is to be used then a silicon sealant must be liberally

applied to the inside of the insulation shell to ensure all

air gaps are eliminated between the shell and pump

housing to prevent condensation inside the shell.

Fig. 57 Fitting the insulating shells to a MAGNA3 pump

CIM modules

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:

For further information about data communication via

CIM modules, see the CIM documentation available in

WebCAPS.

Location of CIM module

The CIM module is fitted behind the front cover. See

fig. 58.

For installation, see separate installation and operating

instructions.

Fig. 58 Location of CIM module

TM05 2874 0412

Module Fieldbus protocol Product number

CIM 050 GENIbus 96824631

CIM 100 LonWorks 96824797

CIM 150 Profibus DP 96824793

CIM 200 Modbus RTU 96824796

CIM 300 BACnet MS/TP 96893770

http://GRUNDFOS.COM/MANUAL-MAGNA3

TM05 2914 1112

Accessories

MAGNA3

11

58

Grundfos GO Remote

The pump is designed for wireless communication with

the Grundfos GO Remote app which communicates

with the pump via radio communication.

Note: 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

App Store and Android market.

The Grundfos GO Remote app must be used in

conjunction with one of the following Mobile Interface

devices:

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.

For function and connection to the pump, see separate

installation and operating instructions for the desired

type of Grundfos GO Remote setup.

Mobile interface

The available mobile interface devices are described

in the following.

MI 202 and MI 204

The MI 202 and MI 204 are add-on modules with

built-in infrared and radio communication. The MI 202

can be used in conjunction with Apple devices with

30-pin connector (iPhone 4, 4S and iPod touch 4G).

The MI 204 can be used in conjunction with Apple

devices with lightning connector (iPhone 5, 5C, 5S and

iPod touch 5G).

Fig. 59 MI 202 and MI 204

Supplied with the product:

• Grundfos MI 202 or 204

•sleeve

• quick guide

• charger cable.

MI 301

The MI 301 is a module with built-in infrared and radio

communication. The MI 301 must be used in

conjunction with an Android or iOS-based Smartphone

with a Bluetooth connection. The MI 301 has a

rechargeable Li-ion battery that must be charged

separately.

Fig. 60 MI 301

Supplied with the product:

• Grundfos MI 301

• sleeve

• battery charger

• quick guide.

Supported units

Note: Similar Android and iOS-based devices may

work as well, but are not supported by Grundfos.

Mobile interface Product number

Grundfos MI 202 98046376

Grundfos MI 204 98424092

Grundfos MI 301 98046408

TM05 3887 1612 - TM05 7704 1513

MI 202 MI 204

TM05 3887 1612

Make Model Operating

system MI

202 MI

204 MI

301

Apple

iPod touch 4G iOS 5.0 or

later

●-●

iPhone 4, 4S ●-●

iPod touch 5G iOS 6.0 or

later

-●●

iPhone 5, 5C, 5S - ●●

HTC Desire S Android 2.3.3

or later --●

Sensation Android 2.3.4

or later

--●

Samsung

Galaxy S II - - ●

Galaxy Nexus Android 4.0 or

later --●

LG Google Nexus 4 Android 4.2 or

later --●

Further product information

MAGNA3 12

59

12. Further product information

WebCAPS

WebCAPS is a Web-based Computer Aided Product

Selection program available on www.grundfos.us.

WebCAPS contains detailed information on more than

220,000 Grundfos products in more than

30 languages.

Information in WebCAPS is divided into six sections:

• catalog

• literature

• service

• sizing

• replacement

• cad drawings.

Catalog

Based on fields of application and pump types, this section

contains the following:

• technical data

• curves (QH, Eff, P1, P2, etc.) which can be adapted to the

density and viscosity of the pumped liquid and show the

number of pumps in operation

• product photos

• dimensional drawings

• wiring diagrams

• quotation texts, etc.

Literature

This section contains all the latest documents of a given pump,

such as

• data booklets

• installation and operating instructions

• service documentation, such as service kit catalog and service

kit instructions

• quick guides

• product brochures.

Service

This section contains an easy-to-use interactive service catalog.

Here you can find and identify service parts of both existing and

discontinued Grundfos pumps.

Furthermore, the section contains service videos showing you

how to replace service parts.

Further product information

MAGNA3

12

60

WinCAPS

Fig. 61 WinCAPS DVD

Sizing

This section is based on different fields of application and

installation examples and gives easy step-by-step instructions in

how to size a product:

• Select the most suitable and efficient pump for your

installation.

• Carry out advanced calculations based on energy,

consumption, payback periods, load profiles, life cycle costs,

etc.

• Analyze your selected pump via the built-in life cycle cost tool.

• Determine the flow velocity in wastewater applications, etc.

Replacement

In this section you find a guide to selecting and comparing

replacement data of an installed pump in order to replace the

pump with a more efficient Grundfos pump.

The section contains replacement data of a wide range of pumps

produced by other manufacturers than Grundfos.

Based on an easy step-by-step guide, you can compare

Grundfos pumps with the one you have installed on your site.

When you have specified the installed pump, the guide will

suggest a number of Grundfos pumps which can improve both

comfort and efficiency.

CAD drawings

In this section, it is possible to download 2-dimensional (2D) and

3-dimensional (3D) CAD drawings of most Grundfos pumps.

These formats are available in WebCAPS:

2-dimensional drawings:

• .dxf, wireframe drawings

• .dwg, wireframe drawings.

3-dimensional drawings:

• .dwg, wireframe drawings (without surfaces)

• .stp, solid drawings (with surfaces)

• .eprt, E-drawings.

WinCAPS is a Windows-based Computer Aided

Product Selection program containing detailed

information on more than 220,000 Grundfos products

in more than 30 languages.

The program contains the same features and

functions as WebCAPS, but is an ideal solution if no

internet connection is available.

WinCAPS is available on DVD and updated once a

year.

01

Further product information

MAGNA3 12

61

Grundfos GO

Mobile solution for professionals on the GO!

Grundfos GO is the mobile tool box for professional users on the go. It is the most comprehensive platform for mobile

pump control and pump selection including sizing, replacement and documentation. It offers intuitive, handheld

assistance and access to Grundfos online tools, and it saves valuable time for reporting and data collection.

GET IT ON

Subject to alterations.

62

63

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

98439208 0414

ECM: 1131616

Grundfos Kansas City

17100 West 118th Terrace

Olathe, Kansas 66061

Phone: 913-227-3400

Fax: 913-227-3500

www.grundfos.us

Grundfos Canada

2941 Brighton Road

Oakville, Ontario L6H 6C9 Canada

Phone: +1-905-829-9533

Fax: +1-905-829-9512

www.grundfos.ca

Grundfos México

Boulevard TLC No. 15

Parque Industrial Stiva Aeropuerto

C.P. 66600 Apodaca, N.L. Mexico

Phone: 011-52-81-8144 4000

Fax: 011-52-81-8144 4010

www.grundfos.mx