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User Manual: Pump 537324 2 Grundfos Magna3 Owners Manual

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GRUNDFOS DATA BOOKLET

MAGNA3
Circulator pumps
60 Hz

MAGNA3

Table of contents

1.

2.

3.
4.
5.

6.

7.

8.

9.

2

Product introduction

3

Features and benefits
Applications

3
3

Performance range

4

MAGNA3
MAGNA3 D single-head operation
MAGNA3 D twin-head operation

4
5
6

Product range

7

Pump selection

7

Identification

9

Type key

9

Construction

10

Sectional drawing
Mechanical construction
Motor and electronic controller
Pump connections
Surface treatment

10
11
11
11
11

Operating conditions

12

Pumped liquids
General recommendations
Temperatures
Pressures
Differential pressure and temperature sensor

12
12
12
12
13

Installation

14

Mechanical installation
Electrical installation

14
14

Functions

19

System application
Functions
Operating modes
Control modes
Additional features for control modes
Setting values for control modes
Additional operating modes for multi-pump setup
Readings and settings on the pump
Communication

19
26
27
27
30
32
33
33
36

Guide to performance curves

40

Curve conditions
QR code on pump nameplate

40
41

10. Performance curves and technical data
MAGNA3 32-60 F (N)
MAGNA3 32-100 F (N)
MAGNA3 40-80 F (N)
MAGNA3 40-120 F (N)
MAGNA3 40-180 F (N)
MAGNA3 50-80 F (N)
MAGNA3 50-150 F (N)
MAGNA3 65-120 F (N)
MAGNA3 65-150 F (N)
MAGNA3 D 65-150 F
MAGNA3 80-100 F
MAGNA3 D 80-100 F
MAGNA3 100-120 F
MAGNA3 D 100-120 F
Technical data

11. Accessories

42
42
43
44
45
46
47
48
49
50
51
52
53
53
55
56

57

Insulating for air-conditioning and cooling systems 57
CIM modules
57
Grundfos GO Remote
58

12. Further product information
WebCAPS
WinCAPS
GO CAPS

59
59
60
61

MAGNA3

1

TM05 7660 1413

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
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

AUTOADAPT.
FLOWADAPT 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.

Product introduction

1. Product introduction
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
Data
Max. flow rate, Q
Max. head, H
Max. system pressure
Liquid temperature

MAGNA3 (N)
Single-head pumps

MAGNA3 D
Twin-head pumps

346 gpm (78.5 m3/h) 570 gpm (150 m3/h)
60 ft (18 m)
175 psi (12 bar) (1.2 MPa)
+14 to +230 °F (-10 to +110 °C)

3

MAGNA3

2
Performance range

2. Performance range
MAGNA3
H
[m]

H
[ft]

MAGNA3

60
40-180

50
65-150
50-150

40
100-120

65-120

40-120

10
9

30

8

80-100
32-100

7
6

20
40-80

5

32-60

15

50-80

4
12
3

10
8

6
10

15

20

30

40

50

60

70 80

100

150

200

300

400

Q [US GPM]
3

Fig. 2

4

4

5

Performance range, MAGNA3

6

7

8

9 10

20

30

40

50

60

Q [m³/h]

TM05 7654 1413

2

MAGNA3

2

H
[m]

H
[ft]

Performance range

MAGNA3 D single-head operation
MAGNA3 D

50
65-150

40
100-120

10
9
8

30
80-100

25

7
6

20

5
15
4

10
10

15

20

30

40

50

60

70 80

100

150

200

300

400

Q [US GPM]
3

Fig. 3

4

5

6

7

8

9 10

20

30

40

50

60

Q [m³/h]

TM05 7655 1413

12

Performance range, MAGNA3 D single-head operation

5

MAGNA3

2
Performance range

MAGNA3 D twin-head operation
H
[m]

H
[ft]

MAGNA3 D

50
65-150

40
100-120

10
9
8

30
80-100

25

7
6

20

5
15
4

10
10

15

20

30

40

60

80

100

150

200

300

400

600

800

Q [US GPM]
3

Fig. 4

6

4

5

6

7

8 9 10

Performance range, MAGNA3 D twin-head operation

20

30

40

50

60 70 80

100

Q [m³/h]

TM05 3938 1812

12

MAGNA3

3

Cast iron

Stainless steel (N)

Single-head pump

Page reference

32-60 F (N)
32-100 F (N)
40-80 F (N)
40-120 F (N)
40-180 F (N)
50-80 F (N)
50-150 F (N)
65-120 F (N)
65-150 F (N)
80-100 F (N)
100-120 F (N)

MAGNA3 D 65-150 F
MAGNA3 D 80-100 F
MAGNA3 D 100-120 F

208-230 V

115 V

98126820
98126824

208-230 V
98126822
98126826

98126800
98126804
98126808
98126812
98126816
98124696
-

98126828
98126832
98126836
98126840
98126844
98126848
98126852
98126856
98126860

98126802
98126806
98126810
98126814
98126818
98124702
-

98126830
98126834
98126838
98126842
98126846
98126850
98126854
98126858
98126862

42
43
44
45
46
47
48
49
50
52
54

-

98126863
98126864
98126865

-

-

51
53
55

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.

H
Duty point

Q

Fig. 5

TM02 2040 3301

115 V
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3

Product range

3. Product range

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.

7

MAGNA3

3
Communication

• AUTOADAPT (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.
• FLOWADAPT, 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.

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.

TM05 2710 1112

Product range

Control modes

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.
H
[m]
8
6

2
0

0

5

10

15

20

25

30

P1
[W]
400
200
0

Fig. 6

8

Grundfos WebCAPS tool

35

40 Q [m³/h]

TM05 8778 2713

4

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.

MAGNA3

4
Identification

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]

9

MAGNA3

5
Construction

5. Construction

TM05 2319 0312

Sectional drawing

MAGNA3

Fig. 8

Material specification
Pos.

Component

Material

1

Outer bearing ring

Aluminium oxide

2

Control box

Polycarbonate

3

Stator 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)

2

3

4

5

TM05 3035 0812

1

Sensor

Fig. 9

10

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

MAGNA3

5
Construction

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
Black

NCS40-50R
NCS9000

11

MAGNA3

6
Operating conditions

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

12

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)

Temperatures
Liquid temperature
Application

Temperature range

General

+14 to +230 °F (-10 to +110 °C)
+150 °F (Up to +65 °C)
recommended

Domestic hot water systems

Ambient temperature
Ambient conditions
Ambient temperature during
operation
Ambient temperature during
storage and transport
Relative air humidity

+32 to +140 °F (0 to +40 °C)
-40 to +158 °F (-40 to +70 °C)
Maximum 95 %

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.
Liquid temperature
MAGNA3
DN

[167 °F (75 °C)]

[203 °F (95 °C)]

[230 °F (110 °C)]

Inlet pressure [psi (bar)]
32-60/100
40-80
40-120/
150/180
50-80
50-150
65-120
65-150
80-100
100-120

1.5 (0.10)
1.5 (0.10)

5.0 (0.35)
7.3 (0.50)

14.5 (1.0)
16.0 (1.1)

1.5 (0.10)

5.8 (0.40)

14.5 (1.0)

1.5
2.9
1.5
5.8
7.3
7.3

1.5 (0.10)
8.7 (0.60)
7.3 (0.50)
11.6 (0.80)
13.1 (0.90)
13.1 (0.90)

10.2
17.4
16.0
17.4
21.8
21.8

(0.10)
(0.20)
(0.10)
(0.40)
(0.50)
(0.50)

(0.7)
(1.2)
(1.1)
(1.2)
(1.5)
(1.5)

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).

MAGNA3

6
Operating conditions

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.

13

MAGNA3

7
Installation

7. Installation
Mechanical installation

Insulating shells

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.

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.

TM05 2866 0712

Electrical installation

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 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

http://GRUNDFOS.COM/MANUAL-MAGNA3
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).

14

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.

MAGNA3

7

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:

Symbol

Installation

Additional protection

Description
High-sensitivity ELCB, type A, according to
IEC 60775
High-sensitivity ELCB, type B, according to
IEC 60775

Examples of connections
Supply connection
External switch

ELCB

TM03 2397 0312

Fuse
(min. 10 A, time lag)

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

Analog input

IN

24V

Vcc

signal
sensor

M
A

M
I S/S

NC NO

C

NC NO

C

L

N

Mains connection

Alarm
Operation

On/off timer

TM05 2673 3812

Start/stop

Fig. 12 Example of connections in the control box

15

MAGNA3

7
Installation

Digital inputs

Min. curve

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.

Normal duty

Q
H
Min. curve

Q

M
I S/S

Relay outputs

TM05 3343 1212

M
A

H

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.

NC N0

C

Contact symbol

TM05 3343 1212

Fig. 13 Digital input in control box
Function

M
A
M
I
S/S

Max. curve
Min. curve

Fig. 14 Relay output in control box

Start/Stop
Frame connection

Contact symbol

Function

NC
NO
C

Normally closed
Normally open
Common

External start/stop
The pump can be started or stopped via the digital
input.
Start/stop

S/S

The functions of the signal relays are as shown in the
table below:
Signal relay Alarm signal

H
Normal duty

1 2
3
NC NO C

1 2 3
NC NO C

Q
S/S

H
Stop

Q

1 2 3
NC NO C

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

1 2
3
NC NO C

1 2 3
NC NO C

Max. curve
1 2 3
NC NO C

H
Normal duty

1

3

Max. curve

Q

16

2

1NC NO
2 C3
NC NO C

H

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

Q
M
A

Activated:
• The pump has registered a fault.

Signal relay Ready signal

External forced max. or min curve

M
A

Not activated:
• The power supply has been switched off.
• The pump has not registered a fault.

1 2 3
NC NO C

Not activated:
• The pump is not running.

Activated:
• The pump is running.

MAGNA3

7
1

24V

IN

Vcc

Signal

2

TM05 2947 1212

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.

Installation

Analog input for external sensor

Vcc

TM05 3221 1112

IN

24V

signal
sensor

In order to optimize the pump performance, external
sensors can advantageously be used in the following
cases:
Sensor type

Heat energy meter
Constant temperature
Constant pressure remote

Temperature sensor
Temperature sensor (external)
Pressure sensor (external)

Pos.

Sensor type
Differential pressure transmitter,
Grundfos type DPI V.2
1/2" connection and 4-20 mA signal.
Relative pressure transmitter,
combined pressure and temperature sensor, Grundfos
type RPI/T G 1/2" connection and 4-20 mA signal.

1

Fig. 15 Analog input for external sensor or control

Function/control mode

Fig. 17 Examples of external sensors

2

For further details, see section Guide to performance
curves, page 40.

BMS
PLC
24V

TM05 2888 0612

- +

TM06 0882 1114

Sensor

Sensor

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

Fig. 16 Wiring, analog input
PIN

Description

IN

Analog input

24 V

24 V supply to external sensor

Load
150 Ω (4-20 mA signal)
78k Ω (0-10 V signal)
Max. 22 mA

Ground for external sensor

17

MAGNA3

7
Installation

Electrical connection for external sensor
2
1

TM04 7156 1610

4
3

Fig. 19 Example electrical connections for external sensor

*
*

18

PIN

1

2

3

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

Common ground for both pressure and temperature signal.
Power supply (screened cable): SELV or PELV.

MAGNA3

8
Functions

8. Functions
System application
Heating systems

M

M

M

M

TM05 2155 1312

M

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

Description

1

Main pumps

A

Boiler

2
3

Air handler heating coils

B

Hot water circulation

C

Cold water

4

Mixing loops

D

Radiators

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.

E

Fan coils

Air handler heating coils

F

Underfloor heating

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

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).

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.

19

MAGNA3

8
Functions

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.

20

MAGNA3

8

TM05 2156 1312

Functions

Cooling systems

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

1
2
3
4
5

Description
Primary and secondary pumps
Air handler cooling coils
Heat recovery system
Cooling tower
Mixing loops

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.

21

MAGNA3

8
Functions

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.

22

MAGNA3

8
Functions

Solar heating systems

TM05 3421 1312

M

M

Fig. 22 Functional drawing of a solar heating system

Main pumps

Main pump

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.

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.

Ground source heat pump systems (GSHP)

1

TM05 3422 1312

Installation and commissioning

Fig. 23 Ground source heat pump system in a commercial
building
Pos.

Description

1

Heat pump

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.

23

MAGNA3

8
Functions

Selection of control mode
System application
Select this control mode
Recommended for most heating systems, especially in systems with relatively large
AUTOADAPT
pressure losses in the distribution pipes. See description under proportional
H
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,
Q
which reduces operating costs and increases comfort.
The FLOWADAPT control mode is a combination of AUTO ADAPT 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.
FLOWADAPT
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
H
90 % Q max
each loop.
Benefits:
Hfac
• 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
Hauto_min
mode without the use of pump throttling valves.
Q
• When the flow is set lower than the balancing valve setting, the pump will ramp
Q fac
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.
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
Proportional pressure
– strongly throttled pipe balancing valves
H
– differential pressure regulators
– large pressure losses in those parts of the system through which the total
H
quantity of water flows (for example boiler, heat exchanger and distribution pipe
up to the first branching).
H
2
• Primary circuit pumps in systems with large pressure losses in the primary circuit.
Q
• Air-conditioning systems with
– heat exchangers (fan coils)
– cooling ceilings
– cooling surfaces.
In systems with relatively small pressure losses in the distribution pipes.
• Two-pipe heating systems with thermostatic valves and
Constant pressure
– dimensioned for natural circulation
H
– 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.
Q
• One-pipe heating systems with thermostatic valves or pipe balancing valves.
• Primary circuit pumps in systems with small pressure losses in the primary circuit.
set

set

24

MAGNA3

Functions

System application
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.

8
Select this control mode
Constant temperature
H

Q

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
H

Δt

Q

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.
In systems with pumps operating in parallel.
The multi-pump function enables the control of single-head pumps connected in
parallel (two pumps) and twin-head pumps without the use of external controllers.
The pumps in a multi-pump system communicate with each other via the wireless
GENIair connection.

Constant curve
H

Q

"Assist" menu
Multi-pump setup

25

MAGNA3

8
Functions

Functions
Page
Operating modes
Normal (control modes enabled)
Stop
Min. curve
Max. curve

27
27
27
27

Control modes
AUTOADAPT (factory setting)
FLOWADAPT
Proportional pressure
Constant pressure
Constant temperature
Differential temperature
Constant curve

27
28
28
28
29
29
29

Additional features for control modes
FLOWLIMIT
Automatic Night Setback

30
31

Additional operating modes for multi-pump setup
Alternating operation
Back-up operation
Cascade operation

33
33
33

Readings and settings on the pump
Control panel and display
Operating status
Pump performance
Warning and alarm
Heat energy meter
Work log history
Input for external sensor
Grundfos Eye (status indicator)

33
35
35
35
35
35
36
36

Communication
Wireless Grundfos GO Remote
Wireless GENIair connection
Pump information to BMS via CIM modules
Digital inputs
Relay outputs
Analog input
Bus via GENIbus
Bus via LonWorks
Bus via PROFIBUS DP
Bus via Modbus RTU
Bus via BACnet MS/TP
Grundfos Remote Management

26

36
37
37
36
36
36
38
38
38
38
38
38

MAGNA3

8

Operating modes

Functions

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.

Min.

Q

TM05 2446 5111

Max.

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.

H

Hset1

Hfac
A1
Hauto_min

A3

A2

Hset2

Q

TM05 2452 1312

H

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.
A1:
A2:
A3:
Hset1:
Hset2:
Hfac:
Hauto_min:

Original duty point.
Lower registered head on the max. curve.
New duty point after AUTOADAPT control.
Original setpoint setting.
New setpoint after AUTOADAPT control.
See page 32.
A fixed value of 1.5 m.

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.

27

MAGNA3

8
Functions

FLOWADAPT

Proportional pressure

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.

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.

H

TM05 2685 1212

Hset
2

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.

H

Q
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.

H

Hfac

Hauto_min

Q fac

Q

TM05 3334 1312

Q

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.

Fig. 29 Constant pressure control

TM05 2449 0312

90 % Q max
Setting range

28

TM05 2448 1212

Hset

MAGNA3

8

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.

Functions

Differential temperature

tF
TM05 8235 2113

t
tR
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. 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.

H

Q

TM05 2451 5111

TM05 8798 5113

H

Fig. 33 Constant temperature control

The inverse control for cooling application is available
from model B.
Temperature sensor

Q

TM05 2451 5111

Δt

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.).

tF

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.

tR

TM05 2615 0312

Fig. 31 Differential temperature

Fig. 34 Pump with external sensor

29

MAGNA3

8
Functions

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.).

TM05 2616 0312

tF

tR
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 %.

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
H

90 % Q max

H

Q
Fig. 36 Constant curve duty

Limited max. curve

70

%

50

%

30

90%

n.

Q
Speed setting from 0 to 100 %

Fig. 37 Power and pressure limitations influencing the
max. curve

30

TM05 4266 2212

%

Mi

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.

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.

H

Q
Q limit

TM05 2445 1312

TM05 2446 5111

Setting range

MAGNA3

8

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.

H

Normal proportional pressure
duty point
FLOWLIMIT duty point

Hset
2

Q

TM05 2543 0412

Hset

Fig. 39 Proportional pressure control with FLOWLIMIT

Hset

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.

Normal constant pressure
duty point

FLOWLIMIT duty point

Q

TM05 2544 0312

H

Functions

Automatic Night Setback

Fig. 40 Constant pressure control with FLOWLIMIT

H

Normal constant curve
duty point

Q

TM05 2542 0412

FLOWLIMIT duty point

Fig. 41 Constant curve with FLOWLIMIT

31

MAGNA3

8
Functions

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.

Pump type

MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3
MAGNA3

32-60 F (N)
32-100 F (N)
40-80 F (N)
40-120 F (N)
40-180 F (N)
50-80 F (N)
50-150 F (N)
65-120 F (N)

MAGNA3 (D) 65-150 F (N)*
MAGNA3 (D) 80-100 F (N)*
MAGNA3 (D) 100-120 F (N)*

AUTOADAPT
Hfac

Qmax
3

FLOWADAPT / FLOWLIMIT
Qfac

Qmin 25 %
3

3

Qmax 90 %

[ft (m)]

[gpm (m /h)]

[gpm (m /h)]

[gpm (m /h)]

[gpm (m3/h)]

11.5 (3.5)
18.1 (5.5)
14.8 (4.5)
21.3 (6.5)
31.2 (9.5)
14.8 (4.5)
26.2 (8.0)
21.3 (6.5)

48.5 (11.0)
57.3 (13.0)
94.7 (21.5)
112.2 (25.5)
125.4 (28.5)
129.8 (29.5)
165.0 (37.5)
209.0 (47.5)

26.0 (5.9)
29.5 (6.7)
57.2 (13)
70.4 (16)
66.0 (15)
74.8 (17)
88.0 (20)
132.0 (30)

12.4 (2.8)
14.6 (3.3)
23.8 (5.4)
28.2 (6.4)
31.2 (7.1)
32.6 (7.4)
41.4 (9.4)
52.4 (11.9)

43.6 (9.9)
51.6 (11.7)
85.4 (19.4)
101.2 (23)
113.1 (25.7)
117.0 (26.6)
148.7 (33.8)
188.3 (42.8)

26.2 (8.0)
18.0 (5.5)
21.3 (6.5)

248.6 (56.5)
297.0 (67.5)
345.4 (78.5)

176.0 (40)
206.8 (47)
250.8 (57)

62.0 (14.1)
74.4 (16.9)
86.2 (19.6)

224.0 (50.9)
267.5 (60.8)
311.1 (70.7)

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.

32

MAGNA3

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.

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".

Functions

Additional operating modes for
multi-pump setup

8

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.

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.

TM05 3820 1612

Back-up operation

Fig. 42 Control panel
Button

Function
Goes to the "Home" menu.
Returns to the previous action.
Navigates between main menus, displays and
digits.
When the menu is changed, the display will always
show the top display of the new menu.
Navigates between submenus.
Saves changed values, resets alarms and expands
the value field.

33

MAGNA3

8
Functions

Factory setting

"Status" menu

The pumps have been factory-set to AUTOADAPT
without Automatic Night Setback.

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.

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

Status

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. 44 "Status" menu

Home

"Settings" menu

Settings

Fig. 43 "Home" 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
• FLOWLIMIT
• Automatic Night Setback
• Relay outputs
• Setpoint influence
• Bus communication
• General settings.

Fig. 45 "Settings" menu

34

MAGNA3

"Assist" menu

Heat energy meter

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.

"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.

Functions

8

kWh

tR

TM05 5367 3612

tF

Assist

Fig. 47 MAGNA3 with built-in heat energy meter

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.

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.

"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.

Work log history

Warning and alarm

Fig. 48 Example of "Work log history"

35

MAGNA3

8
Functions

Input for external sensor

Communication

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).

The MAGNA3 enables communication via the
following:
• wireless Grundfos GO Remote
• fieldbus communication via CIM modules
• digital inputs
• relay outputs
• analog input.

Grundfos Eye

Grundfos GO Remote

TM05 3825 1712

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. 50 Grundfos GO Remote

TM05 3810 1612

http://GRUNDFOS.COM/MANUAL-MAGNA3

Fig. 49 Grundfos Eye

36

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.

MAGNA3

Wireless GENIair

Grundfos Remote Management

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.

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

CIM modules

Functions

8

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.

37

MAGNA3

8
Functions

Available CIM modules
Module

Fieldbus protocol

Description

Functions

GENIbus

The CIM 050 is a Grundfos communication
The CIM 050 has terminals for the GENIbus
interface module used for communication
connection.
with a GENIbus network.

LonWorks

The CIM 100 has terminals for the LonWorks
connection.
The CIM 100 is a Grundfos communication Two LEDs are used to indicate the actual status
interface module used for communication
of the CIM 100 communication.
with a LonWorks network.
One LED is used for indication of correct
connection to the pump, and the other is used to
indicate LonWorks communication status.

PROFIBUS DP

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 CIM 150 is a Grundfos communication
the PROFIBUS DP address.
interface module used for communication
Two LEDs are used to indicate the actual status
with a PROFIBUS network.
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.

Modbus RTU

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.
The CIM 200 is a Grundfos communication
Two hexadecimal rotary switches are used to set
interface module used for communication
the Modbus address.
with a Modbus RTU network.
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.

GSM/GPRS

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
The CIM 250 is a Grundfos communication
for indication of correct connection to the pump,
interface module used for GSM/GPRS
and the other is used to indicate GSM/GPRS
communication.
communication status.
The CIM 250 is used to communicate via a
Note: The SIM card is not supplied with the CIM
GSM network.
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.

TM05 3812 1612

CIM 050

TM05 3813 1612

CIM 100

TM05 3814 1612

CIM 150

TM05 3815 1612

CIM 200

TM05 4432 2212

CIM 250

38

MAGNA3

Module

Fieldbus protocol

Description

Grundfos Remote
Management

With the CIM 270 you have wireless access to
your account anywhere, anytime when you have
The CIM 270 is a Grundfos GSM/GPRS
an internet connection, for example via a
modem used for communication with a
smartphone, tablet PC, laptop or computer.
Grundfos Remote Management system.
Warnings and alarms can be sent by e-mail or
It requires a GSM antenna, a SIM card and SMS to your mobile phone or computer. You will
a contract with Grundfos.
get a complete status overview of the entire GRM
system. It allows you to plan maintenance and
service based on actual operating data.

BACnet MS/TP

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.
The CIM 300 is a Grundfos communication
Two hexadecimal rotary switches are used to set
interface module used for communication
the BACnet address.
with a BACnet MS/TP network.
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.

Ethernet

The CIM 500 supports various industrial Ethernet
protocols. The CIM 500 is configured via the
The CIM 500 is a Grundfos communication
built-in web server, using a standard web browser
interface module used for data
on a PC.
transmission between an industrial
See the specific functional profile on the
Ethernet network and a Grundfos product.
DVD-ROM supplied with the Grundfos CIM
module.

Functions

8
Functions

TM05 4432 2212

CIM 270

TM05 3815 1612

CIM 300

TM05 8825 2713

CIM 500

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

39

MAGNA3

9
Guide to performance curves

9. Guide to performance curves

90
80
70
60
50
40
30
20
10
0

Typical
Typical
circulator
circulator
pump
pump

EuP
EuP
2013
2013

EuP
EuP
2015
2015

MAGNA3
EuP
EuP
MAGNA3
benchmark
benchmark
level
level

TM05 3935 1712

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.

100

EEI = 0.17

Fig. 52 Energy efficiency index (EEI)

Index

EEI = 0.20

TM05 2682 0412

in class
class
in

EEI = 0.23

BEST
BEST

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.

labelled
EEI = 0.27

Symbols used on the following pages

Fig. 53 Old energy label

labelled

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.

TM05 3936 1712

Curve conditions

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.

40

MAGNA3

9
Guide to performance curves

QR code on pump nameplate

TM05 2683 0412

For more information about the new energy directive,
please visit:

TM05 3826 1712

TM05 2683 0412

http://energy.Grundfos.com

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.

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.

41

10

Performance curves and technical data

MAGNA3

Performance curves and technical data

10. Performance curves and technical data
MAGNA3 32-60 F (N)
p
[psi]

H
[ft]
24

10

p
[psi]

Proportional pressure

10
MAX

20

8

1 x 115-230 V, 50/60 Hz

AUTOADAPT

8

16

H
[ft]
24

Constant pressure
MAGNA3 32-60 F (N)

MAX

20
16

6

6
12

12
4

8

2

4

0

MIN

0
0

5

10

15

20

25

30

8

2

4

0

0

Q [US GPM]

P1
[W]
140

MIN

0

5

10

15

20

25

30

Q [US GPM]

P1
[W]
140

120

120

MAX

100

MAX

100
m

80

5

2

60

5

80

m

m
1m

60

40

40

20

20

MIN

0

MIN

TM06 0657 0714

4

0
0
0

5

10

15

2

20

25

4

30

6

Q [US GPM]

0

8

0

Q [m³/h]

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

5

10
2

15

20

25

4

6

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

30

Q [US GPM]
8

Q [m³/h]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.18

The pump incorporates overload protection.
Gross weights [lbs (kg)]

Ship. vol. [ft3 (m3)]

12.3 (5.5)

14.4 (6.5)

0.46 (0.014)

TM06 0734 0814

Net weights [lbs (kg)]

Pump type

MAGNA3 32-60 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

42

Performance curves and technical data

MAGNA3 32-100 F (N)

12
10
8

35

p
[psi]
16

MAX

AUTOADAPT

30

14
12

25

10

20

8

35

25
20

15

6

15

4

10

4

10

2

5

2

5

0

0

0

0

0
P1
[W]
200
180
160
140
120
100
80
60
40
20
0

5

10

15

20 25

30 35

40 Q [US GPM]

2

m

9m

MIN

0
0
Speed

I1/1 [A] 115 V

Min.
Max.

5

10

15

2

20 25
4

MIN

0

8

10 Q [m³/h]

0

0.29

9.7

0.09

9

1.61

178.3

1.47

180

25 30

35 40 Q [US GPM]

MIN

0

I1/1 [A] 230 V

20

1m

40 Q [US GPM]

P1 [W] 115 V

10 15

MAX

30 35

6

5

P1
[W]
200
180
160
140
120
100
80
60
40
20
0

MAX

MAGNA3 32-100 F (N)

MAX

30

6

MIN

Constant pressure

H
[ft]
40

5

10 15
2

20
4

6

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

P1 [W] 230 V

25 30

TM06 0659 0714

14

Proportional pressure

H
[ft]
40

m

16

1 x 115-230 V, 50/60 Hz

9

p
[psi]

10
Performance curves and technical data

MAGNA3

35 40 Q [US GPM]
8

10 Q [m³/h]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.18

The pump incorporates overload protection.
Gross weights [lbs (kg)]

Ship. vol. [ft3 (m3)]

12.3 (5.5)

14.4 (6.5)

0.46 (0.014)

TM06 0734 0814

Net weights [lbs (kg)]

Pump type

MAGNA3 32-100 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

43

Performance curves and technical data

MAGNA3

Performance curves and technical data

MAGNA3 40-80 F (N)
p
[psi]

H
[ft]
32

12

28

10

24

1 x 115 & 208-230 V, 50/60 Hz

Proportional pressure

p
[psi]

H
[ft]
32

12

28

10

24

MAX
AUTOADAPT

20

8

8

16

6

6

12

4

4

8

2

4

0

0

MIN

0

10

20

30

40

50

60

Constant pressure

20
16
12
8

2

4

0

0

MIN

Q [US GPM]

0

P1
[W]
300

MAGNA3 40-80 F (N)

MAX

10

20

30

MAX

50

60

Q [US GPM]

40

50

60

Q [US GPM]

MAX

250

250

200

200

150

150

100

100

50

50
MIN

0

Speed

40

P1
[W]
300

0

10

0

2

I1/1 [A] 115 V

20
4

30

40

6

MIN

0

8

10

50

60

12

14

Q [US GPM]

0

10

16 Q [m³/h]

0

2

P1 [W] 115 V

I1/1 [A] 230 V

Min.

0.3

16

0.19

16

2.45

276

1.20

265

4

30
6

8

10

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

P1 [W] 230 V

Max.

20

12

14

TM05 8103 1214

10

16 Q [m³/h]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.19

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)

B2

H3
H6

L5
L1

B1

H1

D4
D3
D2
D1

TM05 7651 1413

D5

B4

H4

B7

B6

H2

Pump type

MAGNA3 40-80 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

44

Performance curves and technical data

MAGNA3 40-120 F (N)
H
[ft]
45

18
16
14
12
10
8
6
4
2
0

40

1 x 115 & 208-230 V, 50/60 Hz

Proportional pressure
MAX
AUTOADAPT

35
30
25
20
15
10
5

MIN

0
0

10 20

P1
[W]
500
450
400
350
300
250
200
150
100
50
0

30

40 50

60 70

p
[psi]

H
[ft]
45

18
16
14
12
10
8
6
4
2
0

40

2

2

4

6

40 50
8

60 70

30
25
20
15
10
5
MIN

0
0

m

10
m

0

30

MAGNA3 40-120 F (N)

10

20 30

P1
[W]
500
450
400
350
300
250
200
150
100
50
0

MIN

10 20

MAX

35

80 Q [US GPM]

MAX

0

Constant pressure

10

1m

MIN

10

20 30

10 12 14 16 18 20 Q [m³/h]

0

2

4

P1 [W] 115 V

I1/1 [A] 230 V

Min.

0.26

16

0.19

16

Max.

3.88

442

1.95

440

70 80 Q [US GPM]

MAX

0

I1/1 [A] 115 V

50 60

m

80 Q [US GPM]

Speed

40

TM05 8104 1214

p
[psi]

10
Performance curves and technical data

MAGNA3

6

40
8

50 60

10 12 14 16 18 20 Q [m³/h]

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

P1 [W] 230 V

70 80 Q [US GPM]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.18

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)

B2

H3
H6

L5
L1

B1

H1

D4
D3
D2
D1

TM05 7651 1413

D5

B4

H4

B7

B6

H2

Pump type

MAGNA3 40-120 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

45

Performance curves and technical data

MAGNA3

Performance curves and technical data

MAGNA3 40-180 F (N)
p
[psi]
30

H
[ft]
70

25

60

1 x 115 & 208-230 V, 50/60 Hz

Proportional pressure

MAX
AUTOADAPT

50

20

p
[psi]
30

H
[ft]
70

25

60

20

40
15

10

20

5

10

0

0

MAGNA3 40-180 F (N)

MAX

50
40

15

30

10

Constant pressure

MIN

0

10 20 30 40 50 60 70 80

30
20

5

10

0

0

Q [US GPM]

MIN

0

P1
[W]
700

10 20 30 40 50 60 70 80

Q [US GPM]

P1
[W]
700
MAX

600

MAX

600

500

500

400

400

300

300

200

200

100

100
MIN

0

10 20 30 40 50 60 70 80

0

2

4

6

MIN

0

0

Q [US GPM]

0

10 20 30 40 50 60 70 80

8 10 12 14 16 18 20 22 Q [m³/h]

0

2

P1 [W] 115 V

Speed

I1/1 [A] 115 V

I1/1 [A] 230 V

Min.

0.26

16

0.18

16

Max.

5.39

614

2.68

607

TM05 8105 1214

10

4

6

8 10 12 14 16 18 20 22 Q [m³/h]

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

P1 [W] 230 V

Q [US GPM]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.18

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)
B2

H3
H6

L5
L1

B1

H1

D4
D3
D2
D1

TM05 7651 1413

D5

B4

H4

B7

B6

H2

Pump type

MAGNA3 40-180 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

46

Performance curves and technical data

MAGNA3 50-80 F (N)
H
[ft]
32

12

28

10

24

8
6
4

1 x 115 & 208-230 V, 50/60 Hz

Proportional pressure

MAX
AUTOADAPT

p
[psi]

H
[ft]
32

12

28

10

24

20

4

0

0

12

4

8

2

16

6

12

MIN

8

2

4

0

0

0 10 20 30 40 50 60 70 80 90 100 Q [US GPM]
P1
[W]
400

MAGNA3 50-80 F (N)

MAX

20

8

16

Constant pressure

MIN

0 10 20 30 40 50 60 70 80 90 100 Q [US GPM]
P1
[W]
400

350

350

MAX

300

300

250

250

200

200

150

150

100

100

50

MAX

50

MIN

0

MIN

TM05 8106 1214

p
[psi]

10
Performance curves and technical data

MAGNA3

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

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

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

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

Speed

I1/1 [A] 115 V

P1 [W] 115 V

I1/1 [A] 230 V

P1 [W] 230 V

Min.

0.31

Max.

2.81

18.5

0.22

18.5

318

1.46

325

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.18

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)

B2

H3
H6

TM05 7652 1413

D1

D2

D3

D4

L5
L1

B1

H1

ØD5

B4
B6

H4

B7

H2

Pump type

MAGNA3 50-80 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

47

Performance curves and technical data

MAGNA3

Performance curves and technical data

MAGNA3 50-150 F (N)
p
[psi]
20
16
12
8
4
0

H
[ft]
55
50
45
40
35
30
25
20
15
10
5
0

1 x 115 & 208-230 V, 50/60 Hz
p
[psi]

Proportional pressure

H
[ft]
55
50
45
40
35
30
25
20
15
10
5
0

MAX
AUTOADAPT

20
16
12
8
4

MIN

0
P1
[W]
700

20

40

60

0
80

100 120

Q [US GPM]

Constant pressure
MAX

MIN

0
P1
[W]
700

MAX

600

600

500

500

400

400

300

300

200

200

100

MAGNA3 50-150 F (N)

20

40

60

80

100 120

Q [US GPM]

80

100 120

Q [US GPM]

MAX

100
MIN

0
0

20

0

5

40

60

10

15

Speed

I1/1 [A] 115 V

P1 [W] 115 V

Min.

0.31

Max.

5.54

MIN

0
80

100 120

20

25

30

Q [US GPM]

0

20

Q [m³/h]

0

5

I1/1 [A] 230 V

P1 [W] 230 V

18.5

0.23

18.5

630

2.78

630

TM05 8107 1214

10

40

60

10

15

20

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

25

30

Q [m³/h]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.17

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)

B2

H3
H6

TM05 7652 1413

D1

D2

D3

D4

L5
L1

B1

H1

ØD5

B4
B6

H4

B7

H2

Pump type

MAGNA3 50-150 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

48

Performance curves and technical data

MAGNA3 65-120 F (N)

16
12
8

H
[ft]
45

1 x 115 & 208-230 V, 50/60 Hz
p
[psi]

Proportional pressure
MAX

40

AUTOADAPT

35

16

30

12

25
20

8

15
4

Constant pressure
MAX

40

MAGNA3 65-120 F (N)

35
30
25
20
15

10

4

5
0

H
[ft]
45

10
5

MIN

0
0

20 40

60

0

MIN

0

80 100 120 140 160Q [US GPM]

0

P1
[W]
900

20

40 60

80 100 120 140

Q [US GPM]

P1
[W]
900

800

800

MAX

700

700

600

600

500

500

400

400

300

300

200

200

100

100

MIN

0
0
0

20 40
5

60

10

15

20

I1/1 [A] 115 V

P1 [W] 115 V

Min.

0.36

Max.

6.67

MIN

0

80 100 120 140 160Q [US GPM]

Speed

MAX

25

30

35

40 Q [m³/h]

I1/1 [A] 230 V

P1 [W] 230 V

20.5

0.18

20.5

772

3.38

769

0

20

0

5

40 60
10

80 100 120 140

15

20

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

25

30

TM05 8108 1214

p
[psi]

10
Performance curves and technical data

MAGNA3

Q [US GPM]
35

40 Q [m³/h]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.17

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)

B2

H3
H6

TM05 7652 1413

D1

D2

D3

D4

L5
L1

B1

H1

ØD5

B4
B6

H4

B7

H2

Pump type

MAGNA3 65-120 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

49

Performance curves and technical data

MAGNA3

Performance curves and technical data

MAGNA3 65-150 F (N)
p
[psi]

H
[ft]
55
50
45
40
35
30
25
20
15
10
5
0

20
16
12
8
4
0

1 x 208-230 V, 50/60 Hz
p
[psi]

Proportional pressure

H
[ft]
55
50
45
40
35
30
25
20
15
10
5
0

MAX
AUTOADAPT

20
16
12
8
4

MIN

0

0 20 40 60 80 100 120 140 160 180 Q [US GPM]

Constant pressure
MAX

MAGNA3 65-150 F (N)

MIN

0 20 40 60 80 100 120 140 160 180 Q [US GPM]

P1
[W]
1600

P1
[W]
1600

1400

1400

MAX

1200

1000

1000

13

m

1200

800

2

600

MAX
m
13

800

m

600

400

1m

400

200

200
MIN

0

MIN

0

0 20 40 60 80 100 120 140 160 180 Q [US GPM]

0 20 40 60 80 100 120 140 160 180 Q [US GPM]

0

0

5

10 15 20 25 30 35 40 45

Speed

P1 [W]

Q [m³/h]

Min.

29

0.30

Max.

1301

5.68

5

10 15 20 25 30 35 40 45

System pressure:
Liquid temperature:
Also available with:
Specific EEI:

I1/1 [A]

TM05 8109 1214

10

Q [m³/h]

Max. 175 psi (12 bar)
14 to 230 °F (-10 °C to +110 °C)
Stainless-steel pump housing, type N
0.17

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)

B2

H3
H6

TM05 7652 1413

D1

D2

D3

D4

L5
L1

B1

H1

ØD5

B4
B6

H4

B7

H2

Pump type

MAGNA3 65-150 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

50

Performance curves and technical data

MAGNA3 D 65-150 F
H
[ft]
55
50
45
40
35
30
25
20
15
10
5
0

20
16
12
8
4
0

1 x 208-230 V, 50/60 Hz
p
[psi]

Proportional pressure

H
[ft]
55
50
45
40
35
30
25
20
15
10
5
0

MAX
AUTOADAPT

20
16
12
8
4

MIN

0

0

20 40 60 80 100 120 140 160

P1
[W]
1400

Q [US GPM]

Constant pressure
MAX

MAGNA3 D 65-150 F

0 40 80 120 160 200 240 280 320 360 Q [US GPM]
P1
[W]
2800

MAX

1200

2400

1000

2000

800

1600

600

1200

400

800

200

Constant Pressure Cascade

MAX

400
MIN

0
0

0

20 40 60 80 100 120 140 160

0

5

10

15

TM05 8112 1214

p
[psi]

20

25

10
Performance curves and technical data

MAGNA3

30

35

Q [US GPM]
40

Q [m³/h]

Speed

P1 [W]

I1/1 [A]

Min.

29

0.30

Max.

1301

5.68

0 40 80 120 160 200 240 280 320 360 Q [US GPM]
0

10 20 30 40 50 60 70 80 90

Q [m³/h]

System pressure:
Max. 175 psi (12 bar)
Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)
Specific EEI:
0.17

The pump incorporates overload protection.
Gross weights [lbs (kg)]

Ship. vol. [ft3 (m3)]

98 (44.6)

118 (53.7)

2.12 (0.06)

TM05 2205 2214

Net weights [lbs (kg)]

Pump type

MAGNA3 D 65-150 F

Dimensions [in (mm)]
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)

For product numbers, see page 7.

51

Performance curves and technical data

MAGNA3

Performance curves and technical data

MAGNA3 80-100 F
p
[psi]
16

H
[ft]
40

1 x 208-230 V, 50/60 Hz

16

MAX

35

AUTOADAPT

30

12

p
[psi]

Proportional pressure

12

25
20

8

8

15

MAGNA3 80-100 F

MAX

35
30
25
20

4

10

5
0

Constant pressure

15

10

4

H
[ft]
40

5
MIN

0
0

40

80

0

120

160

200

MIN

0

Q [US GPM]

0

P1
[W]
1200

40

80

120

160

200

Q [US GPM]

160

200

Q [US GPM]

P1
[W]
1200
MAX

1000

MAX

1000

800

800

600

600

400

400

200

200
MIN

0
0
0

40

80

10

20

Speed

MIN

0

120

160

30

200

40

Q [US GPM]

0

40

Q [m³/h]

0

10

50

P1 [W]

Min.

31

0.32

1041

4.60

80

120

20

30

40

50

Q [m³/h]

System pressure:
Max. 175 psi (12 bar)
Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)
Specific EEI:
0.17

I1/1 [A]

Max.

TM05 8110 1214

10

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)

B2

H3
H6

TM05 7652 1413

D1

D2

D3

D4

L5
L1

B1

H1

ØD5

B4
B6

H4

B7

H2

Pump type

MAGNA3 80-100 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

52

Performance curves and technical data

MAGNA3 D 80-100 F
p
[psi]
16

1 x 208-230 V, 50/60 Hz

Proportional pressure

H
[ft]
40
35

p
[psi]
16

MAX

AUTOADAPT

30

12

12

25
20

8

8

15

35

MAGNA3 D 80-100 F

MAX

30
25
20

4

10

5
0

Constant pressure

H
[ft]
40

15

10

4

10
Performance curves and technical data

MAGNA3

5
MIN

0
0

40

80

0

120

160

200

0

Q [US GPM]

0

P1
[W]
1200

100

200

300

400

P1
[W]
2400

500 Q [US GPM]

Constant Pressure Cascade

MAX

1000

2000

800

1600

600

1200

400

800
400
MIN

0
0
0

40

80

10

0

120

20

Speed

TM05 8113 1913

200

MAX

160

30

200

40

P1 [W]

50

Q [US GPM]

0

100

Q [m³/h]

0

20

Min.

32

0.32

1052

4.62

40

300
60

400
80

100

500 Q [US GPM]
120

Q [m³/h]

System pressure:
Max. 175 psi (12 bar)
Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)
Specific EEI:
0.17

I1/1 [A]

Max.

200

The pump incorporates overload protection.
Gross weights [lbs (kg)]

Ship. vol. [ft3 (m3)]

114 (51.6)

140 (63.4)

2.47 (0.07)

TM05 2205 2214

Net weights [lbs (kg)]

Pump type

MAGNA3 D 80-100 F

Dimensions [in (mm)]
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)

For product numbers, see page 7.

53

Performance curves and technical data

MAGNA3

Performance curves and technical data

MAGNA3 100-120 F
p
[psi]

H
[ft]
45

p
[psi]

Proportional pressure
MAX

40

16

1 x 208-230 V, 50/60 Hz

AUTOADAPT

35

16

30

12

12

25
20

8

8

15

MAX

40

MAGNA3 100-120 F

35
30
25
20

4

10

5
0

Constant pressure

15

10

4

H
[ft]
45

5
MIN

0
0

40

80

0

120 160 200 240

Q [US GPM]

P1
[W]
1800

MIN

0
0

40

80

120 160 200 240

Q [US GPM]

P1
[W]
1800
MAX

1600

MAX

1600

1400

1400

1200

1200

1000

1000

800

800

600

600

400

400

200

200
MIN

0
0

40

0

10

80
20

Speed

MIN

0

120 160 200 240
30

40

50

Q [US GPM]

0

40

Q [m³/h]

0

10

60

P1 [W]

Min.

31

0.32

1576

6.97

80

120 160 200 240

20

30

40

50

Q [US GPM]
60

Q [m³/h]

System pressure:
Max. 175 psi (12 bar)
Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)
Specific EEI:
0.17

I1/1 [A]

Max.

TM05 8111 1214

10

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)
B2

D5

H3
H6

B4

H4

B7

B6

H2

Pump type

MAGNA3 100-120 F (N)

Dimensions [in (mm)]
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)

For product numbers, see page 7.

54

TM05 7650 1413

L5
L1

B1

D4
D3
D2
D1

H1

Performance curves and technical data

MAGNA3 D 100-120 F

16
12
8

1 x 208-230 V, 50/60 Hz

Proportional pressure

H
[ft]
45

p
[psi]

MAX

40

AUTOADAPT

35
30
20

30
25
20

8

15

10

10

4

5
0

MAGNA3 D 100-120 F

35

15
4

MAX

40

16
12

25

Constant pressure

H
[ft]
45

5

MIN

0
0

40

80

0

120 160 200 240

0

Q [US GPM]

P1
[W]
1800

0

100

200

300

400

P1
[W]
3600
MAX

1600

2800

1200

2400

1000

2000

800

1600

600

1200

400

800

0

40

0

10

Speed

80

MAX

0

120 160 200 240

20

Constant Pressure Cascade

400

MIN

0

Q [US GPM]

3200

1400

200

500

TM05 8121 1913

p
[psi]

10
Performance curves and technical data

MAGNA3

30

40

50

60

P1 [W]

Q [US GPM]

0

100

Q [m³/h]

0

20

Min.

35

0.35

1582

6.98

40

300
60

400
80

500

Q [US GPM]

100 120 140 Q [m³/h]

System pressure:
Max. 175 psi (12 bar)
Liquid temperature: 14 to 230 °F (-10 °C to +110 °C)
Specific EEI:
0.17

I1/1 [A]

Max.

200

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)

TM05 7701 1214

D4
D3
D2
D1

D5

Pump type

MAGNA3 D 100-120 F

Dimensions [in (mm)]
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)

For product numbers, see page 7.

55

10

Performance curves and technical data

MAGNA3

Performance curves and technical data

Technical data
Electrical data
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
External potential-free contact.
Contact load: 5 V, 10 mA.
Screened cable.
Loop resistance: Maximum 130 Ω.
4-20 mA (load: 150 Ω).
0-10 VDC (load: > 10 kΩ).
Internal potential-free changeover contact.
Maximum load: 250 V, 2 A, AC1.
Minimum load: 5 VDC, 20 mA.
Screened cable, depending on signal level.
Grundfos Communication Interface Modules (add-on CIM modules) for
• GENIbus
• LonWorks
• Profibus DP
• Modbus RTU
• BACnet MS/TP
• Grundfos Remote Management.
Ileakage < 3.5 mA.
The leakage currents are measured in accordance with EN 60335-1.

Two digital inputs

Analog input

Two relay outputs

Bus input

Earth leakage current
EMC

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

cos φ

The 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 data
≤ 43 dB(A)

Sound pressure level

External sensors
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
G1/2 - 1/4" NPT

98477669
98477668

Sensor

Pressure
transmitter

Type

Measuring range
[psi]

Measuring range
[bar]

Transmitter output
[mA]

Power supply
[VDC]

Process
connection

Product number

RPI

0-9
0-15
0-25
0-35

(0 - 0.6)
(0 - 1.0)
(0 - 1.6)
(0 - 2.5)

4 to 20

12-to 30

G 1/2

97748907
97748908
97748909
97748910

Adapters
Adapter
Adapter for 1/4" NPT
Adapter for 1/4" NPT

98344015
98255244

Blanking flange*

*

56

Blanking flange

Product number

All pumps

98159372

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.

MAGNA3

11

Insulating for air-conditioning and
cooling systems

Accessories

11. Accessories
Location of CIM module

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.

The CIM module is fitted behind the front cover. See
fig. 58.
For installation, see separate installation and operating
instructions.

TM05 2874 0412

http://GRUNDFOS.COM/MANUAL-MAGNA3

Fig. 57 Fitting the insulating shells to a MAGNA3 pump

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:
Module

Fieldbus protocol

CIM
CIM
CIM
CIM
CIM

GENIbus
LonWorks
Profibus DP
Modbus RTU
BACnet MS/TP

050
100
150
200
300

TM05 2914 1112

CIM modules

Fig. 58 Location of CIM module

Product number
96824631
96824797
96824793
96824796
96893770

For further information about data communication via
CIM modules, see the CIM documentation available in
WebCAPS.

57

MAGNA3

11
MI 301

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:
Mobile interface

Product number

Grundfos MI 202
Grundfos MI 204
Grundfos MI 301

98046376
98424092
98046408

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.

TM05 3887 1612

Accessories

Grundfos GO Remote

Fig. 60 MI 301

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.

Supplied with the product:
• Grundfos MI 301
• sleeve
• battery charger
• quick guide.
Supported units
Make

Model

Apple

iPod touch 4G
iPhone 4, 4S
iPod touch 5G
iPhone 5, 5C, 5S

MI 202 and MI 204

MI 202

Fig. 59 MI 202 and MI 204

Supplied with the product:
• Grundfos MI 202 or 204
• sleeve
• quick guide
• charger cable.

58

MI 204

TM05 3887 1612 - TM05 7704 1513

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).

HTC

Samsung
LG

Operating
system

MI
202

MI
204

MI
301

iOS 5.0 or
later

●
●
-

●
●

●
●
●
●

iOS 6.0 or
later

Desire S

Android 2.3.3
or later

-

-

●

Sensation
Galaxy S II

Android 2.3.4
or later

-

-

●
●

-

-

●

-

-

●

Galaxy Nexus
Google Nexus 4

Android 4.0 or
later
Android 4.2 or
later

Note: Similar Android and iOS-based devices may
work as well, but are not supported by Grundfos.

MAGNA3

12
Further product information

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.

59

MAGNA3

12
Further product information

Sizing

0

1

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
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.
Fig. 61 WinCAPS DVD

60

MAGNA3

12
Further product information

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.

61

62

63

© Copyright Grundfos Holding A/S

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

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.

98439208 0414
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