Grundfos MAGNA1 25-60 N, MAGNA1 25-40 N, MAGNA1 25-80 N, MAGNA1 25-100 N, MAGNA1 25-120 N Installation And Operating Instructions Manual

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New MAGNA1

Model C

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

English (GB) Installation and operating instructions

English (GB)

Original installation and operating instructions

These installation and operating instructions describe New MAGNA1 model C.

Sections 1-5 give the information necessary to be able to unpack, install and start up the product in a safe way.

Sections 6-11 give important information about the product, as well as information on service, fault finding and disposal of the product.

CONTENTS

Page

1. General information

1.1 Hazard statements

1.2 Notes

1.3 Symbols on the product

2. Receiving the product

2.1 Inspecting the product

2.2 Scope of delivery

2.3 Lifting the product

3. Installing the product

3.1 Location

3.2 Tools

3.3 Insulating shells

3.4 Mechanical installation

3.5 Electrical connection

4. Starting up the product

4.1 Single-head pump

4.2 Twin-head pump

4.3 Pairing and unpairing twin-head pumps

5. Handling and storing the product

6. Product introduction

6.1 Product description

6.2 Intended use

6.3 Pumped liquids

6.4 Identification

6.5 Radio communication

6.6 Non-return valve

6.7 Closed valve operation

6.8 Accessories

7. Control functions

7.1 Proportional-pressure curve (PP1, PP2 or PP3)

7.2 Constant-pressure curve (CP1, CP2 or CP3)

7.3 Constant curve (I, II or III)

7.4 Overview of the control functions

7.5 Selecting control function

8. Setting the product

8.1 Operating panel

8.2 Setting the control function

8.3 Connecting the pump to Grundfos GO Remote

8.4 Communication, control and monitoring

9. Fault finding the product

9.1 Grundfos Eye operating status

9.2 Resetting a fault indication

9.3 Reading out warning and alarm codes in Grundfos GO Remote

9.4 Fault finding table

9.5 Warning 77, twin-head pump

10. Technical data

11. Disposing of the product

15 16 16

17 17 17 18 18 18 19 19

20 20 20 21 22

23 23 25 27

28 29

29 30 31

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.

Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

1. General information

1.1 Hazard statements

The symbols and hazard statements below may appear in

Grundfos installation and operating instructions, safety

instructions and service instructions.

3 3 4

5 5 5 6

The text accompanying the three hazard symbols DANGER, WARNING and CAUTION is structured in the following way:

The hazard statements are structured in the following way:

DANGER

Indicates a hazardous situation which, if not avoided, will result in death or serious personal injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or serious personal injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or moderate personal injury.

SIGNAL WORD

Description of hazard

Consequence of ignoring the warning.

- Action to avoid the hazard.

Read this document and the quick guide before installing the product. Installation and operation must comply with local regulations and accepted codes of good practice.

1.2 Notes

8Nm!

The symbols and notes below may appear in Grundfos installation and operating instructions, safety instructions and service instructions.

Observe these instructions for explosion-proof products.

A blue or grey circle with a white graphical symbol indicates that an action must be taken.

A red or grey circle with a diagonal bar, possibly with a black graphical symbol, indicates that an action must not be taken or must be stopped.

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

2. Receiving the product

2.1 Inspecting the product

Check that the product is in accordance with the order. Check that the voltage and frequency of the product match the

voltage and frequency of the installation site. See section

6.4.1 Nameplate.

Pumps tested with water containing anticorrosive additives are taped on the inlet and outlet ports to prevent residual test water from leaking into the packaging. Remove the tape before installing the pump.

2.2 Scope of delivery

2.2.1 Plug-connected single-head pump

English (GB)

Tips and advice that make the work easier.

1.3 Symbols on the product

Check the position of the clamp before you tighten the clamp. Incorrect position of the clamp will cause leakage from the pump and damage the hydraulic parts in the pump head.

Fit and tighten the screw holding the clamp to 8 Nm ± 1 Nm.

Do not apply more torque than specified even though water is dripping from the clamp. The condensed water is most likely coming from the drain hole under the clamp.

TM05 5508 3016TM06 7222 3016

Fig. 1 Plug-connected single-head pump

The box contains the following items:

• MAGNA1 pump

• insulating shells

•gaskets

•quick guide

• safety instructions

• one ALPHA plug.

2.2.2 Plug-connected twin-head pump

Fig. 2 Plug-connected twin-head pump

The box contains the following items:

• MAGNA1 pump

•gaskets

•quick guide

• safety instructions

• two ALPHA plugs.

2.2.3 Terminal-connected single-head pump

English (GB)

Fig. 3 Terminal-connected single-head pump

The box contains the following items:

• MAGNA1 pump

• insulating shells

•gaskets

• quick guide

• safety instructions

• box with terminal and cable glands.

2.2.4 Terminal-connected twin-head pump

2.3 Lifting the product

Observe local regulations concerning limits for manual lifting or handling.

Always lift directly on the pump head or the cooling fins when handling the pump. See fig. 5.

For large pumps, it may be necessary to use lifting equipment. Position the lifting straps as illustrated in fig. 5.

TM06 7223 3016TM06 6741 3016

Fig. 4 Terminal-connected twin-head pump

The box contains the following items:

• MAGNA1 pump

•gaskets

• quick guide

• safety instructions

• two boxes with terminal and cable glands.

TM05 5819 3016

Fig. 5 Correct lifting of the pump

Do not lift the pump head by the control box, i.e. the red area of the pump. See fig. 6.

TM06 7219 3016

Fig. 6 Incorrect lifting of the pump

3. Installing the product

0.6 x 3.5

5.0

1.2 x 8.0

TX20

TX10

3.1 Location

The pump is designed for indoor installation. Always install the pump in an dry environment where it will not be

exposed to drops or splashes, for example water, from surrounding equipment or structures.

As the pump contains stainless-steel parts, it is important that it is not installed directly in environments, such as:

Indoor swimming pools where the pump would be exposed to the ambient environment of the pool.

Locations with direct and continuous exposure to a marine atmosphere.

In rooms where hydrochloric acid (HCl) can form acidic aerosols escaping from, for example, open tanks or frequently opened or vented containers.

The above applications do not disqualify for installation of MAGNA1. However, it is important that the pump is not installed directly in these environments.

To ensure adequate cooling of the motor and electronics, observe the following requirements:

• Position the pump in such a way that sufficient cooling is ensured.

• The ambient temperature must not exceed 40 °C.

3.2 Tools

3.3 Insulating shells

Insulating shells limit the heat loss from the pump housing and pipes. Insulating shells are available for single-head pumps only.

3.3.1 Heating systems

Insulating shells increase the pump dimensions.

Insulating shells for pumps in heating systems are factory-fitted with the pump. Remove the insulating shells before you install the pump. See fig. 8.

Fig. 8 Removing insulating shells from the pump

English (GB)

TM05 5512 3016

Fig. 7 Recommended tools

3.3.2 Cooling systems

Insulating shells for pumps in air-conditioning and cooling systems, down to -10 °C, are available as accessories and must be ordered separately. See section 6.8.2 Insulating kits for

air-conditioning and cooling systems.

3.3.3 Insulating the pump

As an alternative to insulating shells, you can insulate the pump housing and pipes as illustrated in fig. 9.

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

TM05 6472 4712

Pos. Tool Size

1 Screwdriver, straight slot 0.6 x 3.5 mm 2 Screwdriver, straight slot 1.2 x 8.0 mm 3 Screwdriver, torx bit TX10 4 Screwdriver, torx bit TX20 5 Hexagon key 5.0 mm 6 Side cutter 7 Open-end spanner Depending on DN size

TM05 5549 3016

Fig. 9 Insulation of the pump housing and pipe

3.4 Mechanical installation

English (GB)

Install the pump so that it is not stressed by the pipes. For maximum permissible forces and moments from pipe connections acting on the pump flanges, see page 40.

You can suspend the pump directly in the pipes, provided that the pipes support the pump.

Twin-head pumps are prepared for installation on a mounting bracket or base plate.

Step Action Illustration

Arrows on the pump housing indicate the liquid flow direction through the pump. The liquid flow direction can be horizontal or

vertical, depending on the control-box position.

Close the isolating valves and make sure

that the system is not pressurised during installation of the pump.

TM05 5513 3812

3 Mount the pump with gaskets in the pipes.

Flanged version: Fit the bolts, washers and nuts. Use the correct size of bolts according to the system

pressure. For further information about torques, see page 40.

TM06 8040 0317

TM05 5515 3812

TM05 5516 3816 TM05 5517 3812

3.4.1 Pump positions

A B

C D

Always install the pump with horizontal motor shaft.

• Pump installed correctly in a vertical pipe. See fig. 10, pos. A.

• Pump installed correctly in a horizontal pipe. See fig. 10, pos. B.

• Do not install the pump with vertical motor shaft. See fig. 10, pos. C and D.

Fig. 10 Pump installed with horizontal motor shaft

3.4.2 Control box positions

To ensure adequate cooling, make sure that the control box is in horizontal position with the Grundfos logo in vertical position. See fig. 11.

English (GB)

TM05 5518 3016

TM05 5522 3016

Fig. 11 Pump with the control box in horizontal position

Twin-head pumps installed in horizontal pipes can be fitted with an automatic vent, Rp 1/4" thread, in the upper part of the pump housing if no venting valve is installed in the system. See fig. 12.

Fig. 12 Automatic vent

TM05 6062 3016

3.4.3 Pump head position

English (GB)

If you remove the pump head before installing the pump in the pipes, pay special attention when fitting the pump head to the pump housing:

1. Visually check that the floating ring in the sealing system is

centred. See figs 13 and 14.

2. Gently lower the pump head with the rotor shaft and impeller

into the pump housing.

3. Make sure that the contact face of the pump housing and that

of the pump head are in contact before you tighten the clamp. See fig. 15.

Fig. 13 Correctly centred sealing system

Check the position of the clamp before you tighten it. Incorrect position of the clamp will cause leakage from the pump and damage the hydraulic parts in the pump head. See fig. 15.

TM05 5837 3016

Fig. 15 Fitting the pump head to the pump housing

TM05 6650 3016TM05 6651 3016

Fig. 14 Incorrectly centred sealing system

3.4.4 Changing the control box position

8Nm!

5.0

8 Nm5.0

The warning symbol on the clamp holding the pump head and pump housing together indicates that there is a risk of personal injury. See specific warnings below.

CAUTION

Pressurised system

Minor or moderate personal injury

- Pay special attention to any escaping vapour when loosening the clamp.

CAUTION

Crushing of feet

Minor or moderate personal injury

- Do not drop the pump head when loosening the clamp.

Fit and tighten the screw holding the clamp to 8 Nm ± 1 Nm. Do not apply more torque than specified even though water is dripping from the clamp. The condensed water is most likely coming from the drain hole under the clamp.

Step Action Illustration

Due to the drain hole in the stator housing, position

the gap of the clamp as shown in step 4a or 4b.

Single-head pump:

Position the clamp so that the gap points towards the

arrow. It can be in position 3, 6, 9 or 12 o'clock.

English (GB)

TM05 2870 3016

Check the position of the clamp before you tighten the clamp. Incorrect position of the clamp will cause leakage from the pump and damage the hydraulic parts in the pump head.

Step Action Illustration

Loosen the screw in the clamp that holds the pump head and pump housing together. If you loosen the

screw too much, the pump head will be completely disconnected from the pump housing.

Carefully, turn the pump head to the desired position. If the pump head is

stuck, loosen it with a light blow of a rubber mallet.

Place the control box in horizontal position so that the Grundfos logo is in

vertical position. The motor shaft must be in horizontal position.

TM05 2918 3016

Twin-head pump:

Position the clamps so that the gaps point towards the

arrows. They can be in position 3, 6, 9 or 12 o'clock.

TM05 2917 3016

Fit and tighten the screw holding the clamp to 8 ± 1 Nm.

TM05 2867 3016

Do not retighten

the screw if condensed water is dripping from the clamp.

TM05 2872 3016

Fit the insulating

TM05 5526 3016

shells. Insulating shells for pumps in

air-conditioning and cooling systems must be ordered separately.

TM05 5529 3016

TM05 5527 3016

3.5 Electrical connection

English (GB)

Carry out the electrical connection and protection according to local regulations.

Check that the supply voltage and frequency correspond to the values stated on the nameplate.

WARNING

Electric shock

Death or serious personal injury

- Lock the main switch in position 0. Type and requirements as specified in EN 60204-1, 5.3.2.

WARNING

Electric shock

Death or serious personal injury

- Connect the pump to an external main switch with a minimum contact gap of 3 mm in all poles.

- Use earthing or neutralisation for protection against indirect contact.

- If the pump is connected to an electric installation where an electrical circuit breaker, that is a voltage sensing ELCB, residual-current device RCD or residual-current circuit device RCCB, is used as an additional protection, this circuit breaker must be marked with the first or both of the symbols shown below:

• Make sure that the pump is connected to an external main switch.

• The pump requires no external motor protection.

• The motor incorporates thermal protection against slow overloading and blocking.

• When switched on via the power supply, the pump starts after approximately 5 seconds.

3.5.1 Supply voltage

1 x 230 V ± 10 %, 50/60 Hz, PE. The voltage tolerances are intended for mains-voltage variations.

Do not use the voltage tolerances for running pumps at other voltages than those stated on the nameplate.

3.5.2 Wiring diagrams

External switch

Fuse

RCD/RCCB

External switch

Fuse

RCD/RCCB

CNC S/S

S/S CNC

Fig. 16 Example of a plug-connected motor with a main switch, backup fuse and additional protection

Fig. 17 Example of a mains-connected motor with a main switch, backup fuse and additional protection

English (GB)

TM05 5277 3016

TM06 8503 0817

Fig. 18 Connection to external control

Pos. Description

1 Plug-connected versions 2 Terminal-connected versions

WARNING

Electric shock

Minor or moderate personal injury

- Separate wires connected to supply terminals, outputs NC, C and start-stop input from each other and from the supply by means of reinforced insulation.

TM06 9106 4517 - TM06 8060 0717

Make sure that the fuse is dimensioned according to the nameplate and local regulations.

Connect all cables in accordance with local regulations.

Make sure that all cables are heat-resistant up to 75 °C.

Install all cables in accordance with EN 60204-1 and EN 50174-2:2000.

3.5.3 Connection to the power supply, plug-connected

17 mm

12 mm

7 mm

Ø 5.5 - 10 mm

Max. 1.5 mm

Click

x 3

Max 0.8 x 4

English (GB)

versions

Step Action Illustration

Fit the cable gland and plug cover to the cable. Strip the

cable conductors as illustrated.

Connect the cable

conductors to the power supply plug.

Bend the cable with the cable

conductors pointing upwards.

TM05 5538 3216

Disassembling the plug

Step Action Illustration

TM05 5539 3812

TM05 5540 3812

Insert the power supply plug into the male plug in the pump control box.

TM07 1417 1618

Loosen the cable gland and remove it from the plug.

TM05 5545 3812

Pull off the plug cover while pressing on both sides.

Pull out the conductor guide

plate and throw it away.

Click the plug

cover onto the power supply plug.

Screw the cable

gland onto the power supply plug.

TM05 5546 3812

Loosen the cable

TM05 5541 3812

conductors one by one by pressing a

screwdriver gently into the terminal clip.

TM05 5547 3812

TM05 5542 3812

The plug has now been removed

from the power supply plug.

TM05 5543 3812

TM05 5548 3812

3.5.4 Connection to the power supply, terminal-connected

1 x 230 V

7 mm

20 mm

7 mm

25 mm

Min. Ø 7 mm

Max. Ø 14 mm

version

Step Action Illustration

Remove the front cover from the control box.

Do not remove the screws from the cover.

Locate the power supply plug and cable gland in the

small cardboard box supplied with the pump.

Connect the

cable gland to the control box.

Connect the cable conductors to

English (GB)

the power supply plug.

TM05 5530 3016

TM06 8053 0717

Insert the power supply plug into

the male plug in the control box.

TM06 8049 0717

TM06 8054 0717

Tighten the cable gland.

Refit the front cover.

TM06 8050 0717

Pull the power

cable through the cable gland.

Strip the cable

conductors as illustrated.

TM06 8061 0717

TM06 8051 0717

TM06 8052 0717

3.5.5 Connecting the digital input 3.5.6 Connecting the fault relay output

English (GB)

Step Action Illustration

Remove the front cover from the control box.

Do not remove the screws from the cover.

Locate the digital

input terminal connector.

Pull the cable through a cable gland, M16, and connect the cable conductors to the digital input terminal connector.

See section

8.4.1 Digital input (Start/Stop) for

instructions on how to connect the cable to the terminal.

Step Action Illustration

Remove the front cover from the control box.

Do not remove the screws from the cover.

TM05 5530 3016

Locate the fault

relay output cover and remove it.

Pull the cable

TM06 8017 8517 0817

through a cable gland, M16, and connect the cable conductors to the fault relay output terminal connector.

See section

8.4.2 Fault relay output for

instructions on how to connect the cable to the terminal.

TM06 8516 0817

TM05 5530 3016

TM06 8056 0817

TM06 8057 0817

Refit the front

cover to the control box.

Refit the fault

relay output cover.

TM06 8058 0717

TM06 8059 0717

Refit the front

cover to the control box.

TM06 8059 0717

4. Starting up the product

1 x 230 V ± 10 % ׽ϝ0/60 Hz

1 / On

0 / Off

4.1 Single-head pump

In order to protect the electronics, the number of starts and stops must not exceed four times per hour.

Do not start the pump until the system has been filled with liquid and vented. Furthermore, the required minimum inlet pressure must be available at the pump inlet. See section 10. Technical

data.

The pump is self-venting through the system, and the system must be vented at the highest point.

Step Action Illustration

English (GB)

Switch on the power supply to the pump. The pump starts after approximately 5 seconds.

2 Operating panel at first startup.

The pump has been factory-set to the intermediate proportional-pressure curve.

Select the control mode according to the system application by pressing the button . See section

7. Control functions and 8. Setting the product.

TM07 0033 3917

TM05 5551 3016

4.2 Twin-head pump

5 sec.

English (GB)

4.3.2 Unpairing

Step Action Illustration

Make sure that both pump heads are powered on.

The pumps are paired from factory. When switching on the power supply, the heads will establish connection, which is indicated by a green light in the centre of Grundfos Eye. Please allow approximately 5 seconds for this to happen.

If one of the pump heads is turned off, the pump with power will show a yellow indicator light, warning 77, see section 9. Fault

finding the product. In that case, power up the switched off pump.

Once both pumps are on, the pumps will establish connection and the warning deactivates.

See sections 8.4.1 Digital input (Start/Stop), 8.4.2 Fault relay

output and 8.4.3 Twin-head pump function for additional

twin-head pump setup options.

4.3 Pairing and unpairing twin-head pumps

The pumps are paired from factory, however, it can be useful to know how to pair the system e.g. for service purposes.

The pumps can also be unpaired.

When you have paired the pumps, you must wait 10 seconds before unpairing.

4.3.1 Pairing

The master pump head is the one from which you initiate the pairing.

Push and hold the button on any of the two pump

heads for 5 seconds.

The light in the centre of Grundfos Eye will disappear.

The system has been deactivated.

TM06 8521 1017

TM06 8522 1017

Step Action Illustration

Push and hold the button on the pump you wish to assign as the master pump for 5

seconds. The centre of Grundfos Eye on both pumps will begin to flash.

Push the button on the other pump

to assign this as the slave pump.

The centre of both Grundfos Eye indicator lights are alight and

constant. The two pumps are now paired.

TM06 8524 1017

TM06 8525 1017

TM06 8527 1017

5. Handling and storing the product

Max. 95 % RH IPX4D

If the pump is not used during periods of frost, add antifreeze or let the pump run in regular intervals to prevent frost bursts.

Observe local regulations concerning limits for manual lifting or handling.

Always lift directly on the pump head or the cooling fins when handling the pump. For large pumps, it may be necessary to use lifting equipment. See section 2.3 Lifting the product.

6. Product introduction

6.1 Product description

Grundfos MAGNA1 is a complete range of circulator pumps with integrated controller enabling adjustment of pump performance to the actual system requirements. In many systems, this reduces the power consumption considerably, reduces noise from thermostatic radiator valves and similar fittings and improves the control of the system.

You can set the desired head on the operating panel.

6.2 Intended use

The pump is designed for circulating liquids in the following systems:

• heating systems

• domestic hot-water systems

• air-conditioning and cooling systems. You can also use the pump in the following systems:

• ground-source heat-pump systems

• solar-heating systems.

6.3.1 Glycol

You can use the pump for pumping water-ethylene-glycol mixtures up to 50 %.

Example of a water-ethylene-glycol mixture: Maximum viscosity: 50 cSt ~ 50 % water and 50 % glycol mixture

at -10 °C. The pump has a power-limiting function that protects it against

overload. The pumping of glycol mixtures affects the maximum curve and

reduces the performance, depending on the water-ethylene-glycol mixture and the liquid temperature.

To prevent the glycol mixture from degrading, avoid temperatures exceeding the rated liquid temperature and minimise the operating time at high temperatures.

Clean and flush the system before you add the glycol mixture. To prevent corrosion or lime precipitation, maintain the glycol

mixture regularly. If further dilution of the supplied glycol is required, follow the glycol supplier's instructions.

Additives with a density or kinematic viscosity higher than water reduces the hydraulic performance.

English (GB)

6.3 Pumped liquids

The pump is suitable for thin, clean, non-aggressive and non-explosive liquids, not containing solid particles or fibres that may attack the pump mechanically or chemically.

In heating systems, the water must meet the requirements of accepted standards on water quality in heating systems, for example the German standard VDI 2035.

The pump is also suitable for domestic hot-water systems.

We strongly recommend that you use stainless-steel pumps in domestic hot-water applications to avoid corrosion.

In domestic hot-water systems, we recommend that you use the pump only for water with a degree of hardness lower than approximately 14 °dH.

In domestic hot-water systems, we recommend that you keep the liquid temperature below 65 °C to eliminate the risk of lime precipitation.

TM06 8055 0717

Fig. 19 Pumped liquids

Observe local regulations regarding pump-housing material.

Do not pump aggressive liquids.

Do not pump flammable, combustible or explosive liquids.

6.4 Identification

English (GB)

6.4.1 Nameplate

Fig. 20 Example of a nameplate

Pos. Description

1 Product name 2 Model 3 Production code, PC, year and week* 4 Serial number 5 Product number 6 Country of manufacture 7 Enclosure class 8 Energy Efficiency Index, EEI

9 Part, according to EEI 10 Temperature class 11 Minimum current [A] 12 Maximum current [A] 13 Minimum power [W] 14 Maximum power [W] 15 Maximum system pressure 16 Voltage [V] and frequency [Hz] 17 QR code 18 CE mark and approvals 19 Manufacturer's name and address

* Example of production code: 1326. The pump was produced in

week 26, 2013.

6.4.2 Type key

Code Example MAGNA1 D 80 -120 (F) (N) 360

Type range

MAGNA1

D Twin-head pump

Nominal diameter (DN) of inlet and outlet ports [mm]

TM05 5561 3812

Maximum head [dm]

Pipe connection

Threaded Flange

Pump housing material

Cast iron Stainless steel

Port-to-port length [mm]

6.5 Radio communication

MAGNA1 single-head pumps are designed for infrared communication (IR) with Grundfos GO Remote, while MAGNA1 twin-head pumps can also communicate via radio.

6.6 Non-return valve

If a non-return valve is fitted in the pipe system, ensure that the set minimum outlet pressure of the pump is always higher than the closing pressure of the valve. See fig. 22. This is especially important in proportional-pressure control mode with reduced head at a low flow rate.

Fig. 22 Non-return valve

TM05 3055 0912

Fig. 21 Production code on the packaging

TM06 6692 2216

6.7 Closed valve operation

MAGNA1 pumps can operate at any speed against a closed valve for several days without damage to the pump. However, Grundfos recommends to operate at the lowest possible speed curve to minimize energy losses. There are no minimum flow requirements.

Do not close inlet and outlet valves simultaneously, always keep one open when the pump is running.

Media- and ambient temperatures must never exceed the specified temperature range.

6.8 Accessories

6.8.1 Insulating shells for heating systems

Insulating shells are available for single-head pumps only and are supplied with the pump.

Insulating shells increase the pump dimensions.

6.8.2 Insulating kits for air-conditioning and cooling systems

Insulating shells for pumps in air-conditioning and cooling systems, down to -10 °C, are available as accessories and must be ordered separately. A kit consists of two shells made of polyurethane and a self-adhesive seal to ensure tight assembly.

Insulating shells increase the pump dimensions. The dimensions of the insulating shells for pumps in air-conditioning and cooling systems differ from those of the insulating shells for pumps in heating systems.

Pump type Product number

MAGNA1 25-40/60/80/100/120 (N) 98538852 MAGNA1 32-40/60/80/100/120 (N) 98538853 MAGNA1 32-40/60/80/100 F (N) 98538854 MAGNA1 32-120 F (N) 98164595 MAGNA1 40-40/60 F (N) 98538855 MAGNA1 40-80/100 F (N) 98164597 MAGNA1 40-120/150/180 F (N) 98164598 MAGNA1 50-60/80 F (N) 98164599 MAGNA1 50-100/120/150/180 F (N) 98164600 MAGNA1 65-40/60/80/100/120/150 F (N) 98538839 MAGNA1 80-60/80/100/120 F 98538851 MAGNA1 100-40/60/80/100/120 F 98164611

6.8.3 Blanking flanges

A blanking flange is used to blank off the opening when one of the pump heads of a twin-head pump is removed for service to enable uninterrupted operation of the other pump.

Fig. 23 Position of a blanking flange

Pump type Product number

MAGNA1 D 25-40/60/80/100/120 MAGNA1 D 32-40/60/80/100 (F) MAGNA1 D 40-40/60 F

MAGNA1 D 32-120 F MAGNA1 D 40-80/100/120/150/180 F MAGNA1 D 50-60/80/100/120/150/180 F MAGNA1 D 65-40/60/80/100/120/150 F MAGNA1 D 80-60/80/100/120 F MAGNA1 D 100-40/60/80/100/120 F

6.8.4 Counterflanges

Counterflange kits consist of two flanges, two gaskets and bolts and nuts, making it possible to install the pump in any pipes. See New MAGNA1 model C data booklet, Accessories section, for the right dimension and product number.

98159373

98159372

English (GB)

TM06 8518 0817

The insulating kit also fits stainless-steel versions (N).

6.8.5 Grundfos GO Remote

PP3

PP2

PP1

CP3

CP2

CP1

English (GB)

MAGNA1 single-head pumps are designed for infrared communication (IR) with Grundfos GO Remote, while MAGNA1 twin-head pumps can also communicate via radio.

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

In order to communicate with Grundfos GO Remote via infrared, you need an add-on module. Two variants are available as described in the following.

MI 204

MI 204 is an add-on module with built-in infrared and radio communication. You can use MI 204 in conjunction with an Apple iPhone or iPod with Lightning connector.

Fig. 24 MI 204

Supplied with the product:

• Grundfos MI 204

• sleeve

• quick guide

• charger cable.

MI 301

MI 301 is a module with built-in infrared and radio communication. Use MI 301 in conjunction with an Android or iOS-based smart device with a Bluetooth connection. MI 301 has a rechargeable Li-ion battery and must be charged separately.

7. Control functions

Factory setting: Intermediate proportional-pressure curve, referred to as PP2.

7.1 Proportional-pressure curve (PP1, PP2 or PP3)

Proportional-pressure control adjusts the pump performance to the actual flow rate demand in the system, but the pump performance follows the selected performance curve, PP1, PP2 or PP3. See fig. 26 where PP2 has been selected.

Fig. 26 Three proportional-pressure curves and settings

TM05 7704 1513TM05 3890 1712

The selection of the right proportional-pressure setting depends on the characteristics of the system in question and the actual flow rate demand.

For further information, see section 7.4 Overview of the control

functions and 7.5 Selecting control function.

7.2 Constant-pressure curve (CP1, CP2 or CP3)

Constant-pressure control adjusts the pump performance to the actual flow rate demand in the system, but the pump performance follows the selected performance curve, CP1, CP2 or CP3. See fig. 27 where CP1 has been selected.

TM05 5555 3812TM05 5556 3812TM05 5557 3812

Fig. 27 Three constant-pressure curves and settings

Fig. 25 MI 301

The selection of the right constant-pressure setting depends on the characteristics of the system in question and the actual flow

Supplied with the product:

• Grundfos MI 301

• battery charger

• quick guide.

Product numbers

Grundfos GO variant Product number

Grundfos MI 204 98424092

rate demand. For further information, see section 7.4 Overview of the control

functions and 7.5 Selecting control function.

7.3 Constant curve (I, II or III)

At constant-curve operation, the pump runs at a constant speed, independently of the actual flow rate demand in the system. The pump performance follows the selected performance curve, I, II or III. See fig. 28 where II has been selected.

Grundfos MI 301 98046408

Together with the Grundfos GO module, you will need to download the Grundfos GO Remote app, which is available in Apple App Store and Google Play.

For function and connection to the pump, see the separate installation and operating instructions for the desired type of Grundfos GO setup.

Fig. 28 Three constant-curve settings

The selection of the right constant-curve setting depends on the characteristics of the system in question.

For further information, see section 7.4 Overview of the control

functions and 7.5 Selecting control function.

7.4 Overview of the control functions

III

PP3

CP3

CP2

PP1

CP1

PP2

English (GB)

Fig. 29 Control function in relation to system requirements

Setting Pump curve Function

PP1

PP2

PP3

CP1

CP2

CP3

III Speed III

II Speed II

I Speed I

Lowest proportional-pressure curve

Intermediate proportional-pressure curve

Highest proportional-pressure curve

Lowest constant-pressure curve

Intermediate constant-pressure curve

Highest constant-pressure curve

The duty point of the pump will move up or down on the lowest proportional-pressure curve, depending on the flow rate demand. The head is reduced at falling flow rate demand and increased at rising flow rate demand.

The duty point of the pump will move up or down on the intermediate proportional-pressure curve, depending on the flow rate demand. The head is reduced at falling flow rate demand and increased at rising flow rate demand.

The duty point of the pump will move up or down on the highest proportional-pressure curve, depending on the flow rate demand. The head is reduced at falling flow rate demand and increased at rising flow rate demand.

The duty point of the pump will move out or in on the lowest constant-pressure curve, depending on the flow rate demand in the system. The head is kept constant, irrespective of the flow rate demand.

The duty point of the pump will move out or in on the intermediate constant-pressure curve, depending on the flow rate demand in the system. The head is kept constant, irrespective of the flow rate demand.

The duty point of the pump will move out or in on the highest constant-pressure curve, depending on the flow rate demand in the system. The head is kept constant, irrespective of the flow rate demand.

The pump runs on a constant curve which means that it runs at a constant speed. At speed III, the pump is set to run on the maximum curve under all operating conditions. You obtain quick venting of the pump by setting the pump to speed III for a short period.

The pump runs on a constant curve which means that it runs at a constant speed. At speed II, the pump is set to run on the intermediate curve under all operating conditions.

The pump runs on a constant curve which means that it runs at a constant speed. At speed I, the pump is set to run on the minimum curve under all operating conditions.

TM05 2778 3617

7.5 Selecting control function

English (GB)

System application Select this control mode

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 the following: – very long distribution pipes – strongly throttled pipe-balancing valves – differential-pressure regulators – large pressure losses in those parts of the system through which the total quantity of water flows, for

example a boiler, a heat exchanger and a distribution pipe up to the first branching.

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

• Air-conditioning systems with the following: – heat exchangers, fan coils – cooling ceilings – cooling surfaces.

Systems with relatively small pressure losses in the distribution pipes.

• Two-pipe heating systems with thermostatic valves and the following: – dimensioning for natural circulation – small pressure losses in those parts of the system through which the total quantity of water flows,

for example a boiler, a heat exchanger and a distribution pipe up to the first branching or modified to a high differential temperature between the flow pipe and the return pipe, for example district heating.

• Underfloor heating systems with thermostatic valves.

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

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

Operation according to the maximum or minimum curve, like an uncontrolled pump:

• Use the maximum-curve mode in periods in which a maximum flow rate is required. This operating mode is for instance suitable for hot-water priority in domestic hot-water systems.

• Use the minimum-curve mode in periods in which a minimum flow rate is required.

Proportional pressure

Constant pressure

Constant curve

8. Setting the product

8.1 Operating panel

CAUTION

Hot surface

Minor or moderate personal injury

- To avoid burns only touch the operating panel.

Fig. 30 Operating panel

8.2 Setting the control function

The pump has nine control functions, see section 7. Control

functions. Select the control function by pressing the push-button

on the operating panel, see fig. 30, pos. 5. The control function is indicated by eight different light fields in the display.

Button

presses

TM06 9078 3617

Active light fields Description

Intermediate proportional-pressure curve, referred to as PP2, factory setting

Highest proportional-pressure curve, referred to as PP3

Lowest constant-pressure curve, referred to as CP1

Intermediate constant-pressure curve, referred to as CP2

Highest constant-pressure curve, referred to as CP3

Constant curve III

English (GB)

The operating panel on the pump comprises the following:

Pos. Description

Infrared receiver for Grundfos GO.

Plug-connected versions. Grundfos Eye.

See section 9.1 Grundfos Eye operating status. Infrared receiver for Grundfos GO.

Terminal-connected versions. LEDs indicate the control function.

See section 8.2 Setting the control function.

5 Push-button for selection of a control function.

Constant curve II

Constant curve I

Lowest proportional-pressure curve, referred to as PP1

8.2.1 Adjusting the proportional pressure using Grundfos GO

English (GB)

Remote

The setpoint of the proportional-pressure curve can be adjusted using Grundfos GO Remote.

Adjusting the proportional pressure is only possible in proportional pressure mode.

Step Action Illustration

Choose "Settings" in the Grundfos GO

Remote dashboard.

Step Action Illustration

Use the arrows on the top right of the screen, or slide the setpoint

indicator up and down to adjust the setpoint. Press "OK".

When the pump receives the setpoint from Grundfos GO Remote, the proportional-pre

ssure symbol on the pump lights

TM06 8584 0817

up - none of the level indicators lights up.

For instructions on how to connect the pump to Grundfos GO Remote, see section 8.3 Connecting the pump to Grundfos GO

Remote.

TM06 8582 0817

Choose "Setpoint" in the

"Settings" menu.

TM06 8583 0817

8.3 Connecting the pump to Grundfos GO Remote

Plug-connected versions

Terminal-connected

versions

Min. 30 cm

Max. 15 °

MAGNA1 single-head pumps are designed for infrared communication (IR) with Grundfos GO Remote, while MAGNA1 twin-head pumps can also communicate via radio.

Before connecting to Grundfos GO Remote

To use Grundfos GO Remote together with MAGNA1 make sure to have the following ready:

• For IR communication: A Grundfos GO add-on module, which is available as an accessory. See section 6.8.5 Grundfos GO

Remote. See the separate installation and operating

instructions for the desired type of Grundfos GO setup.

• The Grundfos GO Remote app downloaded to your smart device. Grundfos GO Remote is available in Apple App Store and Google Play.

Connecting to Grundfos GO Remote

To connect to Grundfos GO Remote, do as follows:

1. For IR communication: Establish a connection between the

Grundfos GO add-on module and your smart device. See the separate installation and operating instructions.

2. Open the Grundfos GO Remote app and select either IR or

radio communication depending on the pump type and chosen communication method. Make sure to point Grundfos GO at the receiver placed left or right to Grundfos Eye depending on your pump model. See fig. 31.

8.3.1 Using Grundfos GO Remote

English (GB)

TM06 8584 0817

Fig. 32 Grundfos GO Remote dashboard

Pos. Description

1 Information about the connected product.

Grundfos Eye reflecting the current operating status of

the pump. In a multipump system: Icon indicating if Grundfos GO

is connected to the master or slave pump.

When connected to a single pump: The field is empty. 4 The actual, measured head (pressure). 5 The power consumption of the pump.

Main menu. See section 8.3.2 "Status" menu, 6

8.3.3 "Settings" menu and 8.3.4 "Alarms and warnings"

menu.

"Disconnect": Disconnects Grundfos GO from the

TM06 9081 3617TM06 7653 0718

pump.

"Refresh": Retrieves current data from the pump. 7

"Reports": Wizard creating a report with the pump's

current operating status and settings.

"Help": Guides you through the app.

When using Grundfos GO in a multipump setup and choosing "system view", Grundfos Eye, pos. 2, fig.

32, will indicate the system's operating status and not

the status of the pump itself. See section

9.1.1 Multipump system operating indications.

Fig. 31 Establishing a connection between Grundfos GO and

MAGNA1 via infrared communication

8.3.2 "Status" menu

English (GB)

The "Status" menu gives an overview of the pump's current operating status. To access the menu, connect the pump to Grundfos GO. See section 4.3 Pairing and unpairing twin-head

pumps, and choose the "Status" menu from the dashboard.

8.3.3 "Settings" menu

The "Settings" menu allows you to:

• Adjust the proportional pressure, see section 8.2.1 Adjusting

the proportional pressure using Grundfos GO Remote for

instructions.

• Configure the Warning 77 relay setting, see section

9.5.1 Activating and deactivating the fault relay for

instructions.

Fig. 33 "Status" menu

Pos. Description

The accumulated energy consumption. This cannot be

reset. The amount of time the product has been operating.

This is an accumulated value that cannot be reset. The total number of times the pump has been started

since installation.

status menu 1 - status menu 2

Fig. 34 "Settings" menu

8.3.4 "Alarms and warnings" menu

This menu lets you read out alarm codes and text. A log history of previous alarms and warnings is also available.

Fig. 35 "Alarms and warnings" menu with alarm

TM06 8583 0817

Alarm_Warning

For more information on warnings and alarms, see section

9. Fault finding the product.

You can also reach the menu by tapping Grundfos Eye on the dashboard, see pos. 2, fig. 32.

8.4 Communication, control and monitoring

S/S

XXXXXXXXXXXXXXXXXXXXXXXX

P/N: XXXXXXXX S/N: XXXXXXXX PC: XXXX Model: X

IP XXX TF XXX

Grundfos Holding A/S, DK - 8850 Bjerringbro, Denmark

((,;;;3DUW;

Made in Germany

0LQ

0D[

;;;

;;

XXXX

XXXX;;;

I1 [A] P

1 [W] MPa

NC C

MAGNA1 enables external control and monitoring via the Start/Stop input, see section 8.4.1 Digital input (Start/Stop), and the fault relay output, see section 8.4.2 Fault relay output, on both single and twin-head pumps. In addition, the wireless communication feature in twin-head pumps lets you use the pump without an external controller, see section 8.4.3 Twin-head pump

function.

8.4.1 Digital input (Start/Stop)

To use the digital input, connect the control wires to terminals Start/Stop (S/S) and frame ( ).

If no external on and off switch is connected, maintain the jumper between terminals Start/Stop (S/S) and frame ( ).This connection is the factory setting.

Fig. 36 Digital input in the control box

A: Plug-connected versions B: Terminal-connected versions

Contact symbol Function

S/S Start/Stop

Frame connection

Cable shield

Digital input on twin-head pumps

The Start/Stop input operates on system level, meaning that if the master pump head receives a stop signal, the system stops.

As a main rule the digital input is only effective on the master, which is why it is important to know which pump is assigned as the master, see fig. 37.

Fig. 37 Identifying the master pump head on the nameplate

For redundancy purposes, the digital input can be used concurrent on the slave pump head. However, as long as the master is powered up, the input on the slave will be ignored. In the event of power loss on the master, the digital input of the slave will take over. When the master pump head is back on, the master takes over and controls the slave.

8.4.2 Fault relay output

It is possible to use the relay output as part of a control strategy

TM06 9107 4617 - TM06 9080 3617

or for monitoring. For example, if the pump experiences a fault, the fault relay sends a signal to the controller, which will subsequently trigger further events depending on your chosen strategy. In order to use the fault relay output, follow the instructions in fig. 38.

The relay can be used for outputs up to 250 V and 2 A. Factory settings of the relay:

English (GB)

TM06 8063 0817TM06 9107 4617

Plug-connected versions, pos. A, fig. 36: When using a shielded cable, connect the shield in

the frame terminal ( ) together with the frame connection cord.

Start/Stop

Normal duty

Stop

For instructions on how to connect to the Start/Stop input, see section 3.5.5 Connecting the digital input.

Contact symbol Function

NC Normally closed

C Common

The functions of the fault relay are as shown in the table:

Fault relay Alarm signal

Not activated:

• The power supply has been switched off.

• The pump has not registered a fault.

Activated:

• The pump has registered a fault or there is a wirebreak.

Fig. 38 Fault relay output table

For instructions on how to connect to the fault relay output, see section 3.5.6 Connecting the fault relay output.

Fault relay output in twin-head pumps

The fault relay output on each pump head operates independently, meaning that if a fault occurs in one of the pumps its respective relay is triggered.

8.4.3 Twin-head pump function

English (GB)

The twin-head pump function allows you to use twin-head pumps without an external controller, as the two pump heads communicate via wireless connection.

Operating mode

The pumps are operating in alternating mode, meaning that only one pump is running at a time. The two pumps change from one pump to the other every 24 hours with a tolerance of ± 0,5 % per day.

To control the twin-head pump via the digital Start/Stop input, see section 8.4.1 Digital input (Start/Stop).

To monitor the twin-head pump via the fault relay output, see section 3.5.6 Connecting the fault relay output.

9. Fault finding the product

9.1 Grundfos Eye operating status

Grundfos Eye is on when you switch on the power supply. Grundfos Eye is an indicator light providing information about the

actual pump status. A fault is indicated by a yellow or red indicator light in Grundfos Eye on the operating panel and in Grundfos GO Remote.

The indicator light flashes in different sequences and provides information about the following:

Grundfos Eye Indication Cause Operational state

No lights are on. The power is off. The pump is not running.

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

Two opposite green indicator lights are permanently on.

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

One yellow indicator light is permanently on.

Two opposite red indicator lights flashing simultaneously.

If the pump impeller is rotated, for example when filling the pump with water, sufficient energy may be generated to light up the operating panel even if the power supply has been switched off.

The power is on. The pump is running.

The power is on. The pump has stopped.

Warning. See section 9. Fault

finding the product.

Warning. See section 9. Fault

finding the product.

Alarm. See section 9. Fault

finding the product.

The pump is running.

The pump has stopped.

9.1.1 Multipump system operating indications

When connecting Grundfos GO Remote to a multipump setup and choosing "system view", Grundfos GO Remote will indicate the system's operating status and not the status of the pump itself. Therefore the indicator light in Grundfos GO Remote might differ from the indicator light shown on the pump's operating panel. See the table below.

Grundfos Eye, master pump

Green Green Green Green or yellow Yellow or red Yellow Yellow or red Green or yellow Yellow Red Red Red

Grundfos Eye, slave pump

Grundfos Eye, Grundfos GO Remote

9.2 Resetting a fault indication

To reset a fault indication, eliminate the fault cause, see section

9.4 Fault finding table, and reset the pump by pressing the button

on the pump. If the pump does not revert to normal duty, the fault cause is not eliminated.

If the fault disappears by itself, the fault indication is automatically reset.

A fault can also be reset by using Grundfos GO Remote. See section 9.3 Reading out warning and alarm codes in Grundfos

GO Remote.

CAUTION

Pressurised system

Minor or moderate personal injury

- Before dismantling the pump, drain the system or close the isolating valve on either side of the pump. The pumped liquid may be scalding hot and under high pressure.

WARNING

Electric shock

Death or serious personal injury

- Switch off the power supply for at least 3 minutes before you start any work on the product. Lock the main switch in position 0. Type and requirements as specified in EN 60204-1, 5.3.2.

WARNING

Electric shock

Death or serious personal injury

- Make sure that other pumps or sources do not force flow through the pump even if the pump is stopped.

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

9.3 Reading out warning and alarm codes in Grundfos GO Remote

To read out alarm codes and text, connect the pump to Grundfos GO Remote and navigate to the "Alarms and warnings" menu. Grundfos Eye in the dashboard indicates the warning or alarm.

Step Action Illustration

A. Select the "Alarms and warnings" menu from the dashboard,

B. You can also reach the menu by tapping Grundfos Eye.

The "Alarms and warnings" menu shows the current alarm code and text. A log history of previous alarms and warnings is also available.

When the fault is corrected, reset the alarm by pressing the "Reset alarm" button.

When connecting Grundfos GO to one of the pumps of a twin-head pump, Grundfos GO reads out alarm codes and texts for that pump. If you want to see alarms and warnings for the other pump, connect to this instead.

An overview of warnings and alarms is also available in section

9.4 Fault finding table.

For instructions on how to connect the pump to Grundfos GO, see section 8.3 Connecting the pump to Grundfos GO Remote.

English (GB)

Dashboard_With_Alarm

Alarm_Warning

9.4 Fault finding table

English (GB)

Warning and alarm codes

"Pump communication fault" (10) Alarm

"Forced pumping" (29) Alarm

"Undervoltage" (40, 75) Alarm

"Blocked pump" (51) Alarm

High motor temperature (64) Alarm

Internal fault (72 and

155) Alarm

"Overvoltage" (74) Alarm

Comm. fault, twin-head pump (77) Warning

Internal fault (84 and

85) Warning

Fault

Communication fault between different parts of the electronics.

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

The supply voltage to the pump is too low.

The pump is blocked. Yes

The temperature in the stator windings is too high.

Internal fault in the pump electronics. Irregularities in the voltage supply can cause alarm 72.

The supply voltage to the pump is too high.

The communication between pump heads was disturbed or broken.

Fault in the pump electronics. - Contact Grundfos Service, or replace the pump.

Automatic reset

and restart?

Yes

No Contact Grundfos Service, or replace the pump.

Yes

Corrective actions

Replace the pump, or contact Grundfos Service. Check if the pump is running in turbine operation. See code (29) "Forced pumping".

Switch off the pump on the main switch. If the light in Grundfos Eye is on, the pump is running in forced-pumping mode. Check the system for defective non-return valves and replace the valves, if necessary. Check the system for correct position of non-return valves.

Make sure that the power supply is within the specified range.

Dismantle the pump, and remove any foreign matter or impurities preventing the pump from rotating. Check the water quality to eliminate the risk of lime precipitation.

There might be turbine flow in the application that forces a flow through the pump. Contact Grundfos Service, or replace the pump.

Make sure that the power supply is within the specified range.

Make sure that the second pump head is powered on or connected to the power supply.

9.5 Warning 77, twin-head pump

A yellow Grundfos Eye in a twin-head pump system often means that the two heads have lost connection to each other, warning

77. This is often intermittent and caused by external disturbance, or because one of the heads has lost power.

The warning is shown immediately and triggers the fault relay after one hour. If communication is re-established, the warning is automatically reset.

9.5.1 Activating and deactivating the fault relay

It is possible to choose whether warning 77 should trigger the fault relay or not. This is done in Grundfos GO. For instructions on how to connect the pump to Grundfos GO, see section

8.3 Connecting the pump to Grundfos GO Remote.

Step Action Illustration

Choose "Settings" in the Grundfos GO

Remote dashboard.

Step Action Illustration

By default the fault relay setting is activated. To disable the

setting, choose "Do not activate relay". Press "OK".

English (GB)

MAGNA1_warning77

Choose

"Warning 77 relay settings".

TM06 8584 0817

TM06 8583 0817

10. Technical data

English (GB)

Supply voltage

1 x 230 V ± 10 %, 50/60 Hz, PE.

Motor protection

The pump requires no external motor protection.

Enclosure class

IPX4D (EN 60529).

Insulation class

Relative humidity

Maximum 95 %.

Ambient temperature

0 to 40 °C. During transport: -40 to +70 °C.

Temperature class

TF110 (EN 60335-2-51).

Liquid temperature

Continuously: -10 to +110 °C. Stainless steel pumps in domestic hot-water systems: In domestic hot-water systems, we recommend that you keep the

liquid temperature below 65 °C to eliminate the risk of lime precipitation.

Maximum system pressure

The actual inlet pressure and the pump pressure against a closed valve must be lower than the maximum permissible system pressure.

The maximum permissible system pressure is stated on the pump nameplate:

PN 6: 6 bar or 0.6 MPa PN 10: 10 bar or 1.0 MPa PN 16: 16 bar or 1.6 MPa.

Test pressure

The pumps can withstand test pressures as indicated in EN 60335-2-51.

• PN 6: 7.2 bar

• PN 10: 12 bar

• PN 6/10: 12 bar

• PN 16: 19.2 bar. During normal operation, do not use the pump at higher

pressures than those stated on the nameplate. See fig. 20. The pressure test has been made with water containing

anti-corrosive additives at a temperature of 20 °C.

Minimum inlet pressure

The following relative minimum inlet 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

Single-head pumps DN

25-40/60/80/100/120 0.10 / 0.01 0.35 / 0.035 1.0 / 0.10 32-40/60/80/100/120 0.10 / 0.01 0.35 / 0.035 1.0 / 0.10 32-120 F 0.10 / 0.01 0.20 / 0.020 0.7 / 0.07 40-40/60 F 0.10 / 0.01 0.35 / 0.035 1.0 / 0.10 40-80/100/120/150/180 F 0.10 / 0.01 0.50 / 0.05 1.0 / 0.10 50-60/80 F 0.10 / 0.01 0.40 / 0.04 1.0 / 0.10 50-100/120 F 0.10 / 0.01 0.50 / 0.05 1.0 / 0.10 50-150/180 F 0.70 / 0.07 1.20 / 0.12 1.7 / 0.17 65-40/60/80/100/120/150 F 0.70 / 0.07 1.20 / 0.12 1.7 / 0.17 80-60/80/100/120 F 0.50 / 0.05 1.00 / 0.10 1.5 / 0.15 100-40/60/80/100/120 F 0.70 / 0.07 1.20 / 0.12 1.7 / 0.17

In the case of twin-head operation, increase the required relative inlet pressure by 0.1 bar or 0.01 MPa compared to the stated values for single-head pumps or twin-head pumps in single-head operation.

The relative minimum inlet pressures apply to pumps installed up to 300 metres above sea level. For altitudes above 300 metres, increase the required relative inlet pressure by 0.01 bar or 0.001 MPa per 100 metres altitude. The pump is only approved for an altitude of maximum 2000 metres above sea level.

Sound pressure level

The sound pressure level of the pump is dependent on the power consumption. Levels are determined in accordance with ISO 3745 and ISO 11203, method Q2.

Pump size Max. dB(A)

25-40/60/80/100/120 32-40/60/80/100/120 40-40/60 50-40

32-120 F 40-80/100 50-60/80 65-40/60 80-40

40-120/150/180 50-100/120/150/180 65-80/100/120 80-60/80 100-40/60

65-150 80-100/120 100-80/100/120

Leakage current

The mains filter will cause a leakage current to earth during operation. The leakage current is less than 3.5 mA.

Power factor

The terminal-connected versions have a built-in active power-factor correction which gives a cos φ from 0.98 to 0.99.

The plug-connected versions have a built-in passive power-factor correction with coil and resistors which ensure that the current drawn from the grid is in phase with the voltage and that the current is approximately sinusoidal which gives a cos φ from 0.55 to 0.98.

75 °C 95 °C 110 °C

Inlet pressure

[bar] / [MPa]

11. Disposing of the product

This product has been designed with focus on the disposal and recycling of materials. The following average disposal values apply to all variants of MAGNA1 pumps:

• 85 % recycling

• 10 % incineration

• 5 % depositing. Dispose of this product or parts of it in an environmentally sound

way according to local regulations. See also end-of-life information on

www.grundfos.com/product-recycling.

WARNING

Magnetic field

Death or serious personal injury

- Persons with pacemakers disassembling this product must exercise care when handling the magnetic materials embedded in the rotor.

English (GB)

Appendix

B3 H3

B5 B4H2

Appendix 1

1. Dimensions, threaded versions

Fig. 1 Single-head pump dimensions, threaded version

TM06 9948 3717

Pump type

Dimensions [mm] [inch]

L1 L5 L6 B1 B2 B4 B6 B7 H1 H2 H3 H4 D1 G

MAGNA1 25-40 (N) 180 158 190 58 111 69 90 113 54 142 196 71 25 1 1/2 MAGNA1 25-60 (N) 180 158 190 58 111 69 90 113 54 142 196 71 25 1 1/2 MAGNA1 25-80 (N) 180 158 190 58 111 69 90 113 54 142 196 71 25 1 1/2 MAGNA1 25-100 (N) 180 158 190 58 111 69 90 113 54 142 196 71 25 1 1/2 MAGNA1 25-120 (N) 180 158 190 58 111 69 90 113 54 142 196 71 25 1 1/2 MAGNA1 32-40 (N) 180 158 190 58 111 69 90 113 54 142 196 71 32 2 MAGNA1 32-60 (N) 180 158 190 58 111 69 90 113 54 142 196 71 32 2 MAGNA1 32-80 (N) 180 158 190 58 111 69 90 113 54 142 196 71 32 2 MAGNA1 32-100 (N) 180 158 190 58 111 69 90 113 54 142 196 71 32 2 MAGNA1 32-120 (N) 180 158 190 58 111 69 90 113 54 142 196 71 32 2

Fig. 2 Twin-head pump dimensions, threaded version

TM07 0068 4117

2. Dimensions, flanged versions

H1 H2

H4B4

B6 B7

Pump type

Dimensions [mm] [inch]

L1 L5 L7 B1 B3 B4 B5 H1 H2 H3 D1 G M3

MAGNA1 D 32-40 180 158 35 58 400 179 221 54 142 196 32 2 1/4 MAGNA1 D 32-60 180 158 35 58 400 179 221 54 142 196 32 2 1/4 MAGNA1 D 32-80 180 158 35 58 400 179 221 54 142 196 32 2 1/4 MAGNA1 D 32-100 180 158 35 58 400 179 221 54 142 196 32 2 1/4

Fig. 3 Single-head pump dimensions, plug-connected versions, flanged version

Appendix

TM07 0067 4117

Pump type

Dimensions [mm]

L1 L5 L6 B1 B2 B4 B6 B7 H1 H2 H3 H4 D1 D2 D3 D4 D5

MAGNA1 32-40 F (N) 220 158 220 58 111 69 100 110 65 142 207 82 32 76 90/100 140 14/19 MAGNA1 32-60 F (N) 220 158 220 58 111 69 100 110 65 142 207 82 32 76 90/100 140 14/19 MAGNA1 32-80 F (N) 220 158 220 58 111 69 100 110 65 142 207 82 32 76 90/100 140 14/19 MAGNA1 32-100 F (N) 220 158 220 58 111 69 100 110 65 142 207 82 32 76 90/100 140 14/19 MAGNA1 40-40 F (N) 220 158 220 58 111 69 105 105 65 156 221 83 40 84 100/110 150 14/19 MAGNA1 40-60 F (N) 220 158 220 58 111 69 105 105 65 156 221 83 40 84 100/110 150 14/19

Appendix

B6 B7

PN 6

PN 10/16

Fig. 4 Single-head pump dimensions, terminal-connected versions, flanged version

TM05 5276 3512

Pump type

Dimensions [mm]

L1 L5 L6 B1 B2 B4 B6 B7 H1 H2 H3 H4 D1 D2 D3 D4 D5

MAGNA1 32-120 F (N) 220 204 216 84 164 73 106 116 65 301 366 86 32 76 90/100 140 14/19 MAGNA1 40-80 F (N) 220 204 220 84 164 73 106 128 65 304 369 83 40 84 100/110 150 14/19 MAGNA1 40-100 F (N) 220 204 220 84 164 73 106 128 65 304 369 83 40 84 100/110 150 14/19 MAGNA1 40-120 F (N) 250 204 220 84 164 73 106 128 65 304 369 83 40 84 100/110 150 14/19 MAGNA1 40-150 F (N) 250 204 220 84 164 73 106 128 65 304 369 83 40 84 100/110 150 14/19 MAGNA1 40-180 F (N) 250 204 220 84 164 73 106 128 65 304 369 83 40 84 100/110 150 14/19 MAGNA1 50-60 F (N) 240 204 240 84 164 73 127 127 71 304 374 97 50 102 110/125 165 14/19 MAGNA1 50-80 F (N) 240 204 240 84 164 73 127 127 71 304 374 97 50 102 110/125 165 14/19 MAGNA1 50-100 F (N) 280 204 240 84 164 73 127 127 72 304 376 97 50 102 110/125 165 14/19 MAGNA1 50-120 F (N) 280 204 240 84 164 73 127 127 72 304 376 97 50 102 110/125 165 14/19 MAGNA1 50-150 F (N) 280 204 240 84 164 73 127 127 72 304 376 97 50 102 110/125 165 14/19 MAGNA1 50-180 F (N) 280 204 240 84 164 73 127 127 72 304 376 97 50 102 110/125 165 14/19 MAGNA1 65-40 F (N) 340 204 296 84 164 73 133 133 74 312 386 94 65 119 130/145 185 14/19 MAGNA1 65-60 F (N) 340 204 296 84 164 73 133 133 74 312 386 94 65 119 130/145 185 14/19 MAGNA1 65-80 F (N) 340 204 296 84 164 73 133 133 74 312 386 94 65 119 130/145 185 14/19 MAGNA1 65-100 F (N) 340 204 296 84 164 73 133 133 74 312 386 94 65 119 130/145 185 14/19 MAGNA1 65-120 F (N) 340 204 296 84 164 73 133 133 74 312 386 94 65 119 130/145 185 14/19 MAGNA1 65-150 F (N) 340 204 296 84 164 73 133 133 74 312 386 94 65 119 130/145 185 14/19 MAGNA1 80-60 F 360 204 310 84 164 73 163 163 96 318 413 115 80 128 150/160 200 19 MAGNA1 80-80 F 360 204 310 84 164 73 163 163 96 318 413 115 80 128 150/160 200 19 MAGNA1 80-100 F 360 204 310 84 164 73 163 163 96 318 413 115 80 128 150/160 200 19 MAGNA1 80-120 F 360 204 310 84 164 73 163 163 96 318 413 115 80 128 150/160 200 19 MAGNA1 100-40 F 450 204 396 84 164 73 178 178 103 330 433 120 100 160 170 220 19 MAGNA1 100-60 F 450 204 396 84 164 73 178 178 103 330 433 120 100 160 170 220 19 MAGNA1 100-80 F 450 204 396 84 164 73 178 178 103 330 433 120 100 160 170 220 19 MAGNA1 100-100 F 450 204 396 84 164 73 178 178 103 330 433 120 100 160 170 220 19 MAGNA1 100-120 F 450 204 396 84 164 73 178 178 103 330 433 120 100 160 170 220 19

Fig. 5 Twin-head pump dimensions, plug-connected versions, flanged version

B6 B6

L2L3

B3 H1 B5 B4H2

Appendix

TM07 0069 4117

Pump type

MAGNA1 D 32-40 F

MAGNA1 D 32-60 F

MAGNA1 D 32-80 F

MAGNA1 D 40-40 F

MAGNA1 D 40-60 F

MAGNA1 D 40-80 F

Dimensions [mm]

L1 L2 L3 L4 L5 L7 B1 B3 B4 B5 B6 B7 H1 H2 H3 D1 D2 D3 D4 D5 M

220 73 120 85 158 35 58 400 179 221 130 260 69 142 211 32 76 90/100 140 14/19 12

220 53 140 60 158 15 58 452 211 241 130 260 76 156 232 40 84 100/110 150 14/19 12

220 53 140 60 204 15 84 502 210 294 130 260 76 303 379 40 84 100/110 150 14/19 12

Appendix

Fig. 6 Twin-head pump dimensions, terminal-connected versions, flanged version

TM05 5275 3512

Pump type

MAGNA1 D 32-120 F

MAGNA1 D 40-80 F

MAGNA1 D 40-100 F

MAGNA1 D 40-120 F

MAGNA1 D 40-150 F

MAGNA1 D 40-180 F

MAGNA1 D 50-40 F

MAGNA1 D 50-60 F

MAGNA1 D 50-80 F

MAGNA1 D 50-100 F

MAGNA1 D 50-120 F

MAGNA1 D 50-150 F

MAGNA1 D 50-180 F

MAGNA1 D 65-40 F

MAGNA1 D 65-60 F

MAGNA1 D 65-80 F

MAGNA1 D 65-100 F

MAGNA1 D 65-120 F

MAGNA1 D 65-150 F

MAGNA1 D 80-40 F

MAGNA1 D 80-60 F

MAGNA1 D 80-80 F

Dimensions [mm]

L1 L2 L3 L4 L5 L7 B1 B3 B4 B5 B6 B7 H1 H2 H3 D1 D2 D3 D4 D5 M

220 97 90 50 204 50 84 502 210 294 130 260 68 300 368 32 76 90/100 140 14/19 12

220 53 140 60 204 15 84 502 210 294 130 260 76 303 379 40 84 100/110 150 14/19 12

250 58 155 75 204 0 84 512 220 294 130 260 69 303 372 40 84 100/110 150 14/19 12

240 48 160 45 204 45 84 515 221 294 130 260 75 304 379 50 102 110/125 165 14/19 12

280 175 75 75 204 0 84 517 223 294 130 260 75 304 379 50 102 110/125 165 14/19 12

340 218 92 92 204 0 84 522 228 294 130 260 77 312 389 65 119 130/145 185 14/19 12

360 218 102 102 204 0 84 538 244 294 130 260 97 318 415 80 128 150/160 200 19 12

Pump type

MAGNA1 D 80-100 F

MAGNA1 D 80-120 F

MAGNA1 D 100-40 F

MAGNA1 D 100-60 F

MAGNA1 D 100-80 F

MAGNA1 D 100-100 F

MAGNA1 D 100-120 F

Dimensions [mm]

L1 L2 L3 L4 L5 L7 B1 B3 B4 B5 B6 B7 H1 H2 H3 D1 D2 D3 D4 D5 M

360 218 102 102 204 0 84 538 244 294 130 260 97 318 415 80 128 150/160 200 19 12

450 243 147 147 204 0 84 551 252 299 135 270 103 330 434 100 160 170 220 19 12

M3: Rp 1/4 for a vent valve is available on all twinhead pumps.

Appendix

3. Forces and moments

Maximum permissible forces and moments from the pipe connections acting on the pump flanges are indicated in fig 7.

Fig. 7 Forces and moments from the pipe connections acting on the pump flanges

TM05 5639 4012

Force

[N]

Diameter DN Fy Fz Fx ΣFb My Mz Mx ΣMb

25* 350 425 375 650 300 350 450 650 32* 425 525 450 825 375 425 550 800 40 500 625 550 975 450 525 650 950 50 675 825 750 1300 500 575 700 1025 65 850 1050 925 1650 550 600 750 1100 80 1025 1250 1125 1975 575 650 800 1175 100 1350 1675 1500 2625 625 725 875 1300

* The values also apply to pumps with threaded connection.

The above values apply to cast-iron versions. For stainless-steel versions, the values can be multiplied by two according to the ISO 5199 standard.

Moment

[Nm]

4. Tightening torques for bolts

Recommended tightening torques for bolts used in flanged connections:

Bolt dimension Torque

M12 27 Nm M16 66 Nm

Argentina

Bombas GRUNDFOS de Argentina S.A. Ruta Panamericana km. 37.500 Centro Industrial Garin 1619 Garín Pcia. de B.A. Phone: +54-3327 414 444 Telefax: +54-3327 45 3190

Australia

GRUNDFOS Pumps Pty. Ltd. P.O. Box 2040 Regency Park South Australia 5942 Phone: +61-8-8461-4611 Telefax: +61-8-8340 0155

Austria

GRUNDFOS Pumpen Vertrieb Ges.m.b.H. Grundfosstraße 2 A-5082 Grödig/Salzburg Tel.: +43-6246-883-0 Telefax: +43-6246-883-30

Belgium

N.V. GRUNDFOS Bellux S.A. Boomsesteenweg 81-83 B-2630 Aartselaar Tél.: +32-3-870 7300 Télécopie: +32-3-870 7301

Belarus

Представительство ГРУНДФОС в Минске 220125, Минск ул. Шафарнянская, 11, оф. 56, БЦ «Порт» Тел.: +7 (375 17) 286 39 72/73 Факс: +7 (375 17) 286 39 71

E-mail: minsk@grundfos.com

Bosnia and Herzegovina

GRUNDFOS Sarajevo Zmaja od Bosne 7-7A, BH-71000 Sarajevo Phone: +387 33 592 480 Telefax: +387 33 590 465 www.ba.grundfos.com e-mail: grundfos@bih.net.ba

Brazil

BOMBAS GRUNDFOS DO BRASIL Av. Humberto de Alencar Castelo Branco, 630 CEP 09850 - 300 São Bernardo do Campo - SP Phone: +55-11 4393 5533 Telefax: +55-11 4343 5015

Bulgaria

Grundfos Bulgaria EOOD Slatina District Iztochna Tangenta street no. 100 BG - 1592 Sofia Tel. +359 2 49 22 200 Fax. +359 2 49 22 201 email: bulgaria@grundfos.bg

Canada

GRUNDFOS Canada Inc. 2941 Brighton Road Oakville, Ontario L6H 6C9 Phone: +1-905 829 9533 Telefax: +1-905 829 9512

China

GRUNDFOS Pumps (Shanghai) Co. Ltd. 10F The Hub, No. 33 Suhong Road Minhang District Shanghai 201106 PRC Phone: +86 21 612 252 22 Telefax: +86 21 612 253 33

COLOMBIA

GRUNDFOS Colombia S.A.S. Km 1.5 vía Siberia-Cota Conj. Potrero Chico, Parque Empresarial Arcos de Cota Bod. 1A. Cota, Cundinamarca Phone: +57(1)-2913444 Telefax: +57(1)-8764586

Croatia

GRUNDFOS CROATIA d.o.o. Buzinski prilaz 38, Buzin HR-10010 Zagreb Phone: +385 1 6595 400 Telefax: +385 1 6595 499 www.hr.grundfos.com

GRUNDFOS Sales Czechia and Slovakia s.r.o.

Čajkovského 21 779 00 Olomouc Phone: +420-585-716 111

Denmark

GRUNDFOS DK A/S Martin Bachs Vej 3 DK-8850 Bjerringbro Tlf.: +45-87 50 50 50 Telefax: +45-87 50 51 51 E-mail: info_GDK@grundfos.com www.grundfos.com/DK

Estonia

GRUNDFOS Pumps Eesti OÜ Peterburi tee 92G 11415 Tallinn Tel: + 372 606 1690 Fax: + 372 606 1691

Finland

OY GRUNDFOS Pumput AB Trukkikuja 1 FI-01360 Vantaa Phone: +358-(0) 207 889 500

France

Pompes GRUNDFOS Distribution S.A. Parc d’Activités de Chesnes 57, rue de Malacombe F-38290 St. Quentin Fallavier (Lyon) Tél.: +33-4 74 82 15 15 Télécopie: +33-4 74 94 10 51

Germany

GRUNDFOS GMBH Schlüterstr. 33 40699 Erkrath Tel.: +49-(0) 211 929 69-0 Telefax: +49-(0) 211 929 69-3799 e-mail: infoservice@grundfos.de Service in Deutschland: e-mail: kundendienst@grundfos.de

Greece

GRUNDFOS Hellas A.E.B.E. 20th km. Athinon-Markopoulou Av. P.O. B ox 7 1 GR-19002 Peania Phone: +0030-210-66 83 400 Telefax: +0030-210-66 46 273

Hong Kong

GRUNDFOS Pumps (Hong Kong) Ltd. Unit 1, Ground floor Siu Wai Industrial Centre 29-33 Wing Hong Street & 68 King Lam Street, Cheung Sha Wan Kowloon Phone: +852-27861706 / 27861741 Telefax: +852-27858664

Hungary

GRUNDFOS Hungária Kft. Tópark u. 8 H-2045 Törökbálint, Phone: +36-23 511 110 Telefax: +36-23 511 111

India

GRUNDFOS Pumps India Private Limited 118 Old Mahabalipuram Road Thoraipakkam Chennai 600 096 Phone: +91-44 2496 6800

Indonesia

PT. GRUNDFOS POMPA Graha Intirub Lt. 2 & 3 Jln. Cililitan Besar No.454. Makasar, Jakarta Timur ID-Jakarta 13650 Phone: +62 21-469-51900 Telefax: +62 21-460 6910 / 460 6901

Ireland

GRUNDFOS (Ireland) Ltd. Unit A, Merrywell Business Park Ballymount Road Lower Dublin 12 Phone: +353-1-4089 800 Telefax: +353-1-4089 830

Italy

GRUNDFOS Pompe Italia S.r.l. Via Gran Sasso 4 I-20060 Truccazzano (Milano) Tel.: +39-02-95838112 Telefax: +39-02-95309290 / 95838461

Japan

GRUNDFOS Pumps K.K. 1-2-3, Shin-Miyakoda, Kita-ku, Hamamatsu 431-2103 Japan Phone: +81 53 428 4760 Telefax: +81 53 428 5005

Korea

GRUNDFOS Pumps Korea Ltd. 6th Floor, Aju Building 679-5 Yeoksam-dong, Kangnam-ku, 135-916 Seoul, Korea Phone: +82-2-5317 600 Telefax: +82-2-5633 725

Latvia

SIA GRUNDFOS Pumps Latvia Deglava biznesa centrs Augusta Deglava ielā 60, LV-1035, Rīga, Tālr.: + 371 714 9640, 7 149 641 Fakss: + 371 914 9646

Lithuania

GRUNDFOS Pumps UAB Smolensko g. 6 LT-03201 Vilnius Tel: + 370 52 395 430 Fax: + 370 52 395 431

Malaysia

GRUNDFOS Pumps Sdn. Bhd. 7 Jalan Peguam U1/25 Glenmarie Industrial Park 40150 Shah Alam Selangor Phone: +60-3-5569 2922 Telefax: +60-3-5569 2866

Mexico

Bombas GRUNDFOS de México S.A. de C.V. Boulevard TLC No. 15 Parque Industrial Stiva Aeropuerto Apodaca, N.L. 66600 Phone: +52-81-8144 4000 Telefax: +52-81-8144 4010

Netherlands

GRUNDFOS Netherlands Velu we zo om 35 1326 AE Almere Postbus 22015 1302 CA ALMERE Tel.: +31-88-478 6336 Telefax: +31-88-478 6332 E-mail: info_gnl@grundfos.com

New Zealand

GRUNDFOS Pumps NZ Ltd. 17 Beatrice Tinsley Crescent North Harbour Industrial Estate Albany, Auckland Phone: +64-9-415 3240 Telefax: +64-9-415 3250

Norway

GRUNDFOS Pumper A/S Strømsveien 344 Postboks 235, Leirdal N-1011 Oslo Tlf.: +47-22 90 47 00 Telefax: +47-22 32 21 50

Poland

GRUNDFOS Pompy Sp. z o.o. ul. Klonowa 23 Baranowo k. Poznania PL-62-081 Przeźmierowo Tel: (+48-61) 650 13 00 Fax: (+48-61) 650 13 50

Portugal

Bombas GRUNDFOS Portugal, S.A. Rua Calvet de Magalhães, 241 Apartado 1079 P-2770-153 Paço de Arcos Tel.: +351-21-440 76 00 Telefax: +351-21-440 76 90

Romania

GRUNDFOS Pompe România SRL Bd. Biruintei, nr 103 Pantelimon county Ilfov Phone: +40 21 200 4100 Telefax: +40 21 200 4101 E-mail: romania@grundfos.ro

Russia

ООО Грундф ос Россия ул. Школьная, 39-41 Москва, RU-109544, Russia Тел. (+7) 495 564-88-00 (495) 737-30-00 Факс (+7) 495 564 8811

E-mail grundfos.moscow@grundfos.com

Serbia

Grundfos Srbija d.o.o. Omladinskih brigada 90b 11070 Novi Beograd Phone: +381 11 2258 740 Telefax: +381 11 2281 769 www.rs.grundfos.com

Singapore

GRUNDFOS (Singapore) Pte. Ltd. 25 Jalan Tukang Singapore 619264 Phone: +65-6681 9688 Telefax: +65-6681 9689

Slovakia

GRUNDFOS s.r.o. Prievozská 4D 821 09 BRATISLAVA Phona: +421 2 5020 1426 sk.grundfos.com

Slovenia

GRUNDFOS LJUBLJANA, d.o.o. Leskoškova 9e, 1122 Ljubljana Phone: +386 (0) 1 568 06 10 Telefax: +386 (0)1 568 06 19 E-mail: tehnika-si@grundfos.com

South Africa

GRUNDFOS (PTY) LTD Corner Mountjoy and George Allen Roads Wilbart Ext. 2 Bedfordview 2008 Phone: (+27) 11 579 4800 Fax: (+27) 11 455 6066 E-mail: lsmart@grundfos.com

Spain

Bombas GRUNDFOS España S.A. Camino de la Fuentecilla, s/n E-28110 Algete (Madrid) Tel.: +34-91-848 8800 Telefax: +34-91-628 0465

Sweden

GRUNDFOS AB Box 333 (Lunnagårdsgatan 6) 431 24 Mölndal Tel.: +46 31 332 23 000 Telefax: +46 31 331 94 60

Switzerland

GRUNDFOS Pumpen AG Bruggacherstrasse 10 CH-8117 Fällanden/ZH Tel.: +41-44-806 8111 Telefax: +41-44-806 8115

Taiwan

GRUNDFOS Pumps (Taiwan) Ltd. 7 Floor, 219 Min-Chuan Road Taichung, Taiwan, R.O.C. Phone: +886-4-2305 0868 Telefax: +886-4-2305 0878

Thailand

GRUNDFOS (Thailand) Ltd. 92 Chaloem Phrakiat Rama 9 Road, Dokmai, Pravej, Bangkok 10250 Phone: +66-2-725 8999 Telefax: +66-2-725 8998

Turkey

GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Gebze Organize Sanayi Bölgesi Ihsan dede Caddesi,

2. yol 200. Sokak No. 204 41490 Gebze/ Kocaeli Phone: +90 - 262-679 7979 Telefax: +90 - 262-679 7905 E-mail: satis@grundfos.com

Ukraine

Бізнес Центр Європа Столичне шосе, 103 м. Київ, 03131, Україна Телефон: (+38 044) 237 04 00 Факс.: (+38 044) 237 04 01

E-mail: ukraine@grundfos.com

United Arab Emirates

GRUNDFOS Gulf Distribution P.O. Box 16768 Jebel Ali Free Zone Dubai Phone: +971 4 8815 166 Telefax: +971 4 8815 136

United Kingdom

GRUNDFOS Pumps Ltd. Grovebury Road Leighton Buzzard/Beds. LU7 4TL Phone: +44-1525-850000 Telefax: +44-1525-850011

U.S.A.

GRUNDFOS Pumps Corporation 17100 West 118th Terrace Olathe, Kansas 66061 Phone: +1-913-227-3400 Telefax: +1-913-227-3500

Uzbekistan

Grundfos Tashkent, Uzbekistan The Representative Office of Grundfos Kazakhstan in Uzbekistan 38a, Oybek street, Tashkent Телефон: (+998) 71 150 3290 / 71 150 3291 Факс: (+998) 71 150 3292

Addresses Revised 14.03.2018

Grundfos companies

99209952 0618

ECM: 1226130

www.grundfos.com

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

Grundfos MAGNA1 25-60 N, MAGNA1 25-40 N, MAGNA1 25-80 N, MAGNA1 25-100 N, MAGNA1 25-120 N Installation And Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

English (GB)

1.1 Hazard statements

1. General information

1.2 Notes

2. Receiving the product

2.1 Inspecting the product

2.2 Scope of delivery

2.2.1 Plug-connected single-head pump

1.3 Symbols on the product

2.2.2 Plug-connected twin-head pump

2.2.3 Terminal-connected single-head pump

2.2.4 Terminal-connected twin-head pump

2.3 Lifting the product

3. Installing the product

3.1 Location

3.2 Tools

3.3 Insulating shells

3.3.1 Heating systems

3.3.2 Cooling systems

3.3.3 Insulating the pump

3.4 Mechanical installation

3.4.1 Pump positions

3.4.2 Control box positions

3.4.3 Pump head position

3.4.4 Changing the control box position

3.5 Electrical connection

3.5.1 Supply voltage

3.5.2 Wiring diagrams

3.5.5 Connecting the digital input 3.5.6 Connecting the fault relay output

4. Starting up the product

4.1 Single-head pump

4.2 Twin-head pump

4.3.2 Unpairing

4.3 Pairing and unpairing twin-head pumps

4.3.1 Pairing

5. Handling and storing the product

6. Product introduction

6.1 Product description

6.2 Intended use

6.3.1 Glycol

6.3 Pumped liquids

6.4 Identification

6.4.1 Nameplate

6.4.2 Type key

6.5 Radio communication

6.6 Non-return valve

6.7 Closed valve operation

6.8 Accessories

6.8.1 Insulating shells for heating systems

6.8.2 Insulating kits for air-conditioning and cooling systems

6.8.3 Blanking flanges

6.8.4 Counterflanges

6.8.5 Grundfos GO Remote

7. Control functions

7.1 Proportional-pressure curve (PP1, PP2 or PP3)

7.2 Constant-pressure curve (CP1, CP2 or CP3)

7.3 Constant curve (I, II or III)

7.4 Overview of the control functions

7.5 Selecting control function

8. Setting the product

8.1 Operating panel

8.2 Setting the control function

8.3 Connecting the pump to Grundfos GO Remote

8.3.1 Using Grundfos GO Remote

8.3.2 "Status" menu

8.3.3 "Settings" menu

8.3.4 "Alarms and warnings" menu

8.4 Communication, control and monitoring

8.4.1 Digital input (Start/Stop)

8.4.2 Fault relay output

8.4.3 Twin-head pump function

9. Fault finding the product

9.1 Grundfos Eye operating status

9.1.1 Multipump system operating indications

9.2 Resetting a fault indication

9.3 Reading out warning and alarm codes in Grundfos GO Remote