Grundfos MAGNA3 25-100 (N) Bedienungsanleitung

GRUNDFOS INSTRUCTIONS

MAGNA3

Installation and operating instructions

Table of contents

MAGNA3

English (US)

Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Español (ES)

Instrucciones de instalación y funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Français (FR)

Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

English (US)

English (US) Installation and operating instructions

Original installation and operating instructions.

CONTENTS

Page

1. Limited warranty 5

2. Symbols used in this document 5

3. General information 6

3.1 Applications 6

3.2 Pumped liquids 6

3.3 Operating conditions 7

3.4 Frost protection 7

3.5 Insulating shells 7

3.6 Non-return valve 7

3.7 Nameplate 8

3.8 Radio communication 9

3.9 Tools 9

4. Mechanical installation 9

4.1 Installing the pump 9

4.2 Positioning 10

4.3 Control box positions 10

4.4 Changing the control box position 11

5. Electrical installation 12

5.1 Supply voltage 12

5.2 Connection to the power supply 13

5.3 Connection diagram 14

5.4 Connection to external controllers 14

5.5 Input/output communication 15

5.6 Priority of settings 17

6. First start-up 18

7. Settings 19

7.1 Overview of settings 19

8. Menu overview 20

9. Control panel 21

10. Menu structure 21

11. "Home" menu 21

12. "Status" menu 22

13. "Settings" menu 22

13.1 Setpoint 22

13.2 Operating mode 23

13.3 Control mode 23

13.4 FLOWLIMIT 27

13.5 Automatic Night Setback 27

13.6 Relay outputs 28

13.7 Setpoint influence 28

13.8 Bus communication 29

13.9 General settings 29

14. "Assist" menu 33

14.1 Assisted pump setup 33

14.2 Setting of date and time 33

14.3 Multi-pump setup 33

14.4 Setup, analog input 33

14.5 Description of control mode 33

14.6 Assisted fault advice 33

14.7 Wireless GENIair 33

14.8 Multi-pump function 33

15. Selection of control mode 34

16. Fault finding 36

16.1 Grundfos Eye operating indications 36

16.2 Signalling communication with remote control 36

16.3 Fault finding 37

17. Sensor 38

17.1 Sensor specifications 38

18. Accessories 39

18.1 Grundfos GO Remote 39

18.2 Communication 39

18.3 Fitting the CIM module 40

19. Technical data 41

20. Disposal 41

Warning

Prior to installation, read these installation and

operating instructions. Installation and operation

must comply with local regulations and accepted

codes of good practice.

Warning

The use of this product requires experience with

and knowledge of the product.

Persons with reduced physical, sensory or

mental capabilities must not use this product,

unless they are under supervision or have been

instructed in the use of the product by a person

responsible for their safety.

Children must not use or play with this product.

English (US)

1. Limited warranty

Products manufactured by GRUNDFOS PUMPS CORPORATION

(Grundfos) are warranted to the original user only to be free of

defects in material and workmanship for a period of 24 months

from date of installation, but not more than 30 months from date

of manufacture. Grundfos' liability under this warranty shall be

limited to repairing or replacing at Grundfos' option, without

charge, F.O.B. Grundfos' factory or authorized service station,

any product of Grundfos' manufacture. Grundfos will not be liable

for any costs of removal, installation, transportation, or any other

charges which may arise in connection with a warranty claim.

Products which are sold but not manufactured by Grundfos are

subject to the warranty provided by the manufacturer of said

products and not by Grundfos' warranty. Grundfos will not be

liable for damage or wear to products caused by abnormal

operating conditions, accident, abuse, misuse, unauthorized

alteration or repair, or if the product was not installed in

accordance with Grundfos' printed installation and operating

instructions.

To obtain service under this warranty, the defective product must

be returned to the distributor or dealer of Grundfos' products from

which it was purchased together with proof of purchase and

installation date, failure date, and supporting installation data.

Unless otherwise provided, the distributor or dealer will contact

Grundfos or an authorized service station for instructions.

Any defective product to be returned to Grundfos or a service

station must be sent freight prepaid; documentation supporting

the warranty claim and/or a Return Material Authorization must

be included if so instructed.

GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR

CONSEQUENTIAL DAMAGES, LOSSES, OR EXPENSES

ARISING FROM INSTALLATION, USE, OR ANY OTHER

CAUSES. THERE ARE NO EXPRESS OR IMPLIED

WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS

FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND

THOSE WARRANTIES DESCRIBED OR REFERRED TO

ABOVE.

Some jurisdictions do not allow the exclusion or limitation of

incidental or consequential damages and some jurisdictions do

not allow limit actions on how long implied warranties may last.

Therefore, the above limitations or exclusions may not apply to

you. This warranty gives you specific legal rights and you may

also have other rights which vary from jurisdiction to jurisdiction.

2. Symbols used in this document

Warning

If these safety instructions are not observed,

it may result in personal injury.

Warning

If these instructions are not observed, it may lead

to electric shock with consequent risk of serious

personal injury or death.

Warning

The surface of the product may be so hot that

it may cause burns or personal injury.

Warning

Risk of dropping objects which may cause

personal injury.

Warning

Escaping vapor involves the risk of personal

injury.

Caution

If these safety instructions are not observed,

it may result in malfunction or damage to the

equipment.

Note

Notes or instructions that make the job easier

and ensure safe operation.

English (US)

3. General information

The Grundfos MAGNA3 is a complete range of circulator pumps

with integrated controller enabling adjustment of pump

performance to the actual system requirements. In many

systems, this will reduce the power consumption considerably,

reduce noise from thermostatic radiator valves and similar fittings

and improve the control of the system.

The desired head can be set on the pump control panel.

3.1 Applications

The Grundfos MAGNA3 is designed for circulating liquids in the

following systems:

• heating systems

• domestic hot-water systems

• air-conditioning and cooling systems.

The pump can also be used in the following systems:

• ground source heat pump systems

• solar-heating systems.

3.2 Pumped liquids

The pump is suitable for thin, clean, non-aggressive and

non-explosive liquids, not containing solid particles or fibers that

may attack the pump mechanically or chemically.

In heating systems, the water should meet the requirements of

accepted standards on water quality in heating systems.

In domestic hot-water systems, we recommend to use MAGNA3

pumps only for water with a degree of hardness lower than

approx. 14 °dH.

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

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

precipitation.

Fig. 1 Pumped liquids

3.2.1 Glycol

The pump can be used for pumping water/ethylene glycol

mixtures up to 50 %.

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

mixture at +14 °F (-10 °C).

The pump has a power-limiting function that protects against

overload.

The pumping of glycol mixtures will affect the max. curve and

reduce the performance, depending on the water/ethylene glycol

mixture and the liquid temperature.

To prevent the ethylene glycol mixture from degrading, avoid

temperatures exceeding the rated liquid temperature and

minimize the operating time at high temperatures.

It is important to clean and flush the system before the ethylene

glycol mixture is added.

To prevent corrosion or lime precipitation, check and maintain the

ethylene glycol mixture regularly. If further dilution of the supplied

ethylene glycol is required, follow the glycol supplier's

instructions.

Warning

Do not use the pump for flammable liquids, such

as diesel oil and gasoline.

Warning

Do not use the pump for aggressive liquids, such

as acids and sea water.

TM05 2857 0612

Max. 95 % RH

Enclosure Type 2

Note

Additives with a density and/or kinematic

viscosity higher than those/that of water will

reduce the hydraulic performance.

English (US)

3.3 Operating conditions

Fig. 2 Operating conditions

3.3.1 Liquid temperature

See fig. 2, pos. 1.

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

Domestic hot-water systems:

• Up to +150 °F (+65 °C).

3.3.2 System pressure

See fig. 2, pos. 2.

The maximum permissible system pressure is stated on the pump

nameplate.

3.3.3 Ambient temperature

See fig. 2, pos. 3.

+32 °F to +104 °F (0 °C to +40 °C).

The control box is air-cooled. Therefore, it is important that the

maximum permissible ambient temperature is not exceeded

during operation.

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

3.3.4 Sound pressure level

See fig. 2, pos. 4.

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

3.3.5 Approvals

• Conforms to ANSI/UL Standard 778.

• Certified to CAN/CSA Standard C22.2 No. 108.

• The protective earth (ground) symbol identifies any

terminal which is intended for connection to an external

conductor for protection against electric shock in case of a

fault, or the terminal of a protective earth (ground) electrode.

3.4 Frost protection

3.5 Insulating shells

Insulating shells are available for single-head pumps only.

The heat loss from the pump and pipework can be reduced by

insulating the pump housing and the pipework. See fig. 3 and

fig. 10.

• Insulating shells for pumps in heating systems are supplied

with the pump; see fig. 3.

• For pumps in air-conditioning and cooling systems (down to

+14 ° (-10 °C)) it is required to apply a silicon sealant to the

internal contours of the shell in order to eliminate any air gaps

and prevent condensation between the insulation shell and

pump housing. Alternatively, the pump can also be insulated

manually in accordance with standard insulating requirements

for heating and cooling systems (fig. 10).

The fitting of insulating shells will increase the pump dimensions.

Fig. 3 Fitting insulating shells to the pump

3.6 Non-return valve

If a non-return valve is fitted in the pipe system (fig. 4), it must be

ensured that the set minimum discharge pressure of the pump is

always higher than the closing pressure of the valve. This is

especially important in proportional-pressure control mode

(reduced head at low flow). The closing pressure of a single

non-return valve is accounted for in the pump settings as the

minimum head delivered is 5 ft (1.5 m).

Fig. 4 Non-return valve

TM05 7662 1413

Caution

If the pump is not used during periods of frost,

necessary steps must be taken to prevent frost

bursts.

Note

Additives with a density and/or kinematic

viscosity higher than those/that of water will

reduce the hydraulic performance.

Min./Max.

+14 °F - 230 °F

(-10 °C - +110 °C)

175 psi (12 bar)

+32 to +104 °F

(0 to +40 °C)

< 43 dB(A)

Note

Limit the heat loss from the pump housing and

pipework.

TM05 2859 0612

Caution

Do not insulate the control box or cover the

control panel.

TM05 3055 0912

English (US)

3.7 Nameplate

The pump nameplate provides the following information:

Fig. 5 Example of nameplate

TM05 6381 4612

RISQUE DE CHOC ELECTRIQUE. HORS DES EQUIPEMENT AVANT ENLEVEMENT DE LA COUVERTURE ET D’ENTRENTIEN. POUR

LE RECCORDEMENT D’ALIMENTATION, EMPLOYEZ DES FILS QUI RESISTENT AU MOINS A 90 °C UTILISEZ UNIQUEMENT DES

CONDUCTEURS DE CUIVRE. POUR RE’DUIRE LES RISQUES DE CHOC E’LECTRIQUE, CONSULTES LE MANUEL D’INSTRUCTIONS

POUR UNE INSTALLATION CORRECTE. EMPLOYER UNIQUEMENT A L’INTERIEUR.

TYPE 2

BOITIER DE TYPE 2

THERMALLY PROTECTED

Nonsubmersible Pump

RISK OF ELECTRIC SHOCK. DE-ENERGIZE EQUIPMENT BEFORE REMOVAL OF COVER & SERVICING. FOR SUPPLY

CONNECTION USE COPPER WIRE SUITABLE FOR 90 °C OR EQUIVALENT. THIS PUMP HAS NOT BEEN INVESTIGATED FOR USE

IN SWIMMING POOL OR MARINE AREAS. TO REDUCE THE RISK OF ELECTRIC SHOCK, SEE INSTRUCTION MANUAL FOR

PROPER INSTALLATION; ACCEPTABLE FOR INDOOR USE ONLY.

PSI

For use with maximum 230° F water

Contains FCC ID: OG3-RADIOM01-2G4

Pos. Description

1 Product name

2 Model

3 Production code (year and week)

4 Serial number

5 Product number

6 Enclosure type

7 Energy Efficiency Index (EEI)

8 Part (according to EEI)

9 TF-class

10 Minimum current [A]

11 Maximum current [A]

12 Minimum power [W]

13 Maximum power [W]

14 Maximum pressure

15 Voltage [V] and frequency [Hz]

16 QR (Quick Response) code

17 Approvals (nameplate)

18 Assembled in USA

English (US)

3.8 Radio communication

The wireless radio in this product is class B.

Intended use

This product incorporates a radio for remote control.

The product can communicate with the Grundfos Go Remote and

with other MAGNA3 pumps of the same type via the built-in radio.

Only Grundfos-approved external antennae may be connected to

this product, and only by a Grundfos-approved installer.

3.9 Tools

Fig. 6 Recommended tools

4. Mechanical installation

4.1 Installing the pump

The MAGNA3 is designed for indoor installation.

The pump must be installed in such a way that it is not stressed

by the pipework.

The pump may be suspended direct in the pipes, provided that

the pipework can support the pump.

Twin-head pumps are prepared for installation on a mounting

bracket or base plate.

To ensure adequate cooling of motor and electronics, the

following must be observed:

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

ensured.

• The temperature of the ambient air must not exceed +104 °F

(+40 °C).

TM05 6472 4712

Pos. Tool Size

1 Screwdriver, straight slot 1.2 x 8.0 mm

2 Screwdriver, straight slot 0.6 x 3.5 mm

3 Screwdriver, torx bit TX20

4 Hexagon key 5.0 mm

5 Open end wrench Depending on PN size

6 Wire cutter

7Pipewrench

1.2 x 8.0 TX200.6 x 3.5 5.0

1234

567

Warning

Observe local regulations setting limits for

manual lifting or handling.

Step Action Illustration

Arrows on the pump housing

indicate the liquid flow direction

through the pump. The liquid

flow direction can be horizontal

or vertical, depending on the

control box position.

TM05 2862 0612

Close the isolating valves and

make sure that the system is not

pressurized during the

installation of the pump.

TM05 2863 0612

3Mount the pump with gaskets in

the pipework.

TM05 2864 0612

Fit bolts and nuts. Use the right

size of bolts according to system

pressure.

TM05 2865 0612

English (US)

4.2 Positioning

Always install the pump with horizontal motor shaft.

• Pump installed correctly in a vertical pipe. See fig. 7, pos. A.

• Pump installed correctly in a horizontal pipe. See fig. 7, pos. B.

• Do not install the pump with vertical motor shaft. See fig. 7,

pos. C and D.

Fig. 7 Pump installed with horizontal motor shaft

4.3 Control box positions

To ensure adequate cooling, the control box must be in horizontal

position with the Grundfos logo in vertical position. See fig. 8.

Fig. 8 Pump with control box in horizontal position

If the pump head is removed before the pump is installed in the

pipework, pay special attention when fitting the pump head to the

pump housing:

1. Gently lower the pump head with rotor shaft and impeller into

the pump housing.

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

of the pump head are in contact before the clamp is tightened.

See fig. 9.

Fig. 9 Fitting the pump head to the pump housing

TM05 2866 0712

TM05 2915 0612TM05 5837 4112

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