Grundfos ALPHA2 25-40 130, ALPHA2 25-40 N 130, ALPHA2 25-50 130, ALPHA2 25-50 N 130, ALPHA2 25-60 N 130 Installation And Operating Instructions Manual

ALPHA2/ALPHA3

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

English (GB) Installation and operating instructions

English (GB)

Original installation and operating instructions

CONTENTS

These installation and operating instructions describe ALPHAx.
Sections 1-6 give the information necessary to be able to unpack,

install and start up the product in a safe way.
Sections 6-17 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 Target group

1.2 Symbols used in this document

1.3 Other important notes

2. Receiving the product

2.1 Inspecting the product

2.2 Scope of delivery

3. Installing the product

3.1 Mechanical installation

3.2 Control box positions

3.3 Control box positions, ALPHA SOLAR

3.4 Insulating the pump housing

4. Electrical installation

4.1 Assembling the plug

4.2 Disassembling the plug

4.3 Electrical installation, ALPHA SOLAR

4.4 Power supply connection, ALPHA SOLAR

4.5 Control signal connection, ALPHA SOLAR

5. Starting up the product

5.1 Before startup

5.2 Venting the pump

5.3 Venting the heating system

5.4 First startup

6. Product introduction

6.1 Product description

6.2 Applications

6.3 Pumped liquids

6.4 Identification

7. Control functions

7.1 Elements on the control panel

7.2 Display

7.3 Light fields indicating the pump setting

7.4 Light field indicating the status of automatic night
setback

7.5 Button for enabling or disabling of automatic night
setback

7.6 Button for selection of pump setting

7.7 Control modes

7.8 Pump performance

7.9 Bypass valve

8. Operating the product

8.1 Using automatic night setback

8.2 Function of automatic night setback

8.3 Setting manual summer mode

8.4 Dry-running protection

8.5 ALPHA Reader

8.6 High-torque start

9. Fault finding

10. Technical data and installation dimensions

10.1 Technical data

10.2 Dimensions, ALPHAx XX-40, XX-50, XX-60, XX-80

10.3 Dimensions, ALPHAx 25-40 A, 25-60 A

11. Performance curves

11.1 Guide to performance curves

11.2 Curve conditions

11.3 Performance curves, ALPHAx XX-40 (N)

11.4 Performance curves, ALPHAx XX-50 (N)

10

10
10
11
11

13

13
13
13

13

13
14
14
16
17

17

17
18
18
18
18
18

19

20

20
21
22

23

23
23
24
25

11.5 Performance curves, ALPHAx XX-60 (N)

11.6 Performance curves, ALPHAx 25-40 A

11.7 Performance curves, ALPHAx 25-60 A

11.8 Performance curves, ALPHAx XX-80 (N)

12. Accessories

12.1 Unions and valve kits

12.2 Insulating shells

12.3 ALPHA plugs

13. ALPHA SOLAR

13.1 Product introduction

13.2 Application

13.3 Product description

13.4 Operating the product

2

2
3
3

3

3
3

4

4
4
5
6

6

7
8
8
8
8

9

9
9
9
9

13.5 Setting by means of the control panel

13.6 Operating status

13.7 Alarm status

13.8 Operating status

13.9 Fault finding the product

14. External PWM control mode and signals

15. Digital solar-circuit controller

16. Technical data

17. Disposing of the product

1. General information

1.1 Target group

Prior to installation, read this document and the quick
guide. Installation and operation must comply with
local regulations and accepted codes of good
practice.

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.

26
27
28
29

30

30
30
31

31

31
31
31
31
31
31
31
32
32

33

33

33

35

2

1.2 Symbols used in this document

1.2.1 Warnings against hazards involving risk of death or personal injury

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.

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

SIGNAL WORD

Description of hazard

Consequence of ignoring the warning.

- Action to avoid the hazard.

1.3 Other important notes

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

English (GB)

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.

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

2. Receiving the product

2.1 Inspecting the product

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

voltage and frequency of the installation site. See section

6.4.1 Nameplate.

2.2 Scope of delivery

The box contains the following items:

• ALPHAx pump

• ALPHA plug

• insulating shells

• two gaskets

• quick guide.
ALPHA SOLAR is delivered without insulating shells but with a

plug designed for ALPHA SOLAR.

3

3. Installing the product

English (GB)

3.1 Mechanical installation

3.1.1 Mounting the product

The arrows on the pump housing indicate the flow direction
through the pump. See fig. 1, pos. A.

See section 10.2 Dimensions, ALPHAx XX-40, XX-50, XX-60,

XX-80 or section 10.3 Dimensions, ALPHAx 25-40 A, 25-60 A.

1. Fit the two gaskets when you mount the pump in the pipe. See
fig. 1, pos. B.

2. Install the pump with a horizontal motor shaft. See fig. 1, pos.
C. See also section 3.2 Control box positions.

3. Tighten the fittings.

3.2 Control box positions

TM05 2919 0912TM05 3146 0912

Fig. 2 Control box positions

Always install the pump with a horizontal motor shaft.

• Pump installed correctly in a vertical pipe. See fig. 2, pos. A.

• Pump installed correctly in a horizontal pipe. See fig. 2, pos. B.

• Do not install the pump with a vertical motor shaft. See fig. 2,

pos. C and D.

3.2.1 Positioning of the control box in heating and domestic

hot-water systems

You can position the control box in position 3, 6 and 9 o'clock.
See fig. 4.

Fig. 1 Mounting ALPHAx

4

Fig. 3 Control box positions, heating and domestic hot-water

TM05 3057 0612

systems

3.2.2 Positioning the control box in air-conditioning and cold-water systems

Position the control box with the plug pointing downwards. See
fig. 4.

CAUTION

Hot surface

Minor or moderate personal injury.

- Position the pump so that persons cannot
accidentally come into contact with hot surfaces.

Fig. 4 Control box position, air-conditioning and cold-water

systems

3.2.3 Changing the control box position

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.

If you change the position of the control box, fill the
system with the liquid to be pumped or open the
isolating valves.

TM05 3151 1212TM05 3147 1212

1. Remove the four screws.

2. Turn the pump head to the desired position.

3. Insert and cross-tighten the screws.

3.3 Control box positions, ALPHA SOLAR

English (GB)

Fig. 5 Changing the control box position

You can turn the control box in steps of 90 °.

TM06 5636 5115TM06 5831 0616

Fig. 6 Control box positions, ALPHA SOLAR

Always install the pump with horizontal motor shaft. Position the
control box in position 9 o'clock. See fig. 7.

Fig. 7 Position of the ALPHA SOLAR control box

You can turn the control box in steps of 90 °.

5

3.4 Insulating the pump housing

English (GB)

4. Electrical installation

Fig. 9 Electrical connection

DANGER

Electric shock

Death or serious personal injury

- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.

Fig. 8 Insulating the pump housing

You can reduce the heat loss from the pump and pipe by
insulating the pump housing and the pipe with the insulating
shells supplied with the pump. See fig. 8.

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

3.4.1 Air-conditioning and cold-water systems

Use the insulating shells in air-conditioning and cold-water
systems as well.

The insulating shells for air-conditioning and cooling systems are
available as accessories. You can order the insulating shells
separately. See section 12. Accessories.

TM05 3058 0912

Carry out the electrical connection and protection in accordance
with local regulations.

• The motor requires no external motor protection.

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

6.4.1 Nameplate.

• Connect the pump to the power supply with the plug supplied
with the pump. See steps 1 to 7.

DANGER

Electric shock

Death or serious personal injury

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

6

4.1 Assembling the plug

Max. 1.5 mm

2

12 mm

∅5.5 - 10 mm

7 mm

17 mm

Step Action Illustration

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

1

the cable
conductors as
illustrated.

Connect the cable
conductors to the

2

power supply
plug.

Step Action Illustration

Screw the cable
gland onto the

6

power supply
plug.

TM05 5538 3812

Insert the power
supply plug into
the male plug in

7

the pump control
box.

English (GB)

TM05 5543 3812

Bend the cable
with the cable

3

conductors
pointing upwards.

Pull out the
conductor guide

4

plate and throw it
away.

TM05 5539 3812

TM05 5540 3812

TM05 5541 3812

TM05 3058 0912

5

Click the plug
cover onto the
power supply
plug.

TM05 5542 3812

7

4.2 Disassembling the plug

0

1

1 x 230 V ± 10 % ∽ 50/60 Hz

PWM =

Power =

English (GB)

Step Action Illustration

Loosen the cable

1

gland and remove
it from the plug.

Pull off the plug
cover while

2

pressing on both
sides.

Add the conductor
guide plate to
loosen all three
cable conductors
at the same time.
If the guide plate
is missing, then

3

loosen the cable
conductors one by
one by pressing a
screwdriver gently
into the terminal
clip.

4.3 Electrical installation, ALPHA SOLAR

TM05 5545 3812

Fig. 11 Control box connections

4.4 Power supply connection, ALPHA SOLAR

Connect the pump to the power supply with the TE Superseal
power plug.

DANGER

Electric shock

TM05 5546 3812

Death or serious personal injury

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

4.5 Control signal connection, ALPHA SOLAR

If you do not need the signal connection, cover it with a blanking
plug. See fig. 11.

You can control the pump with a low-voltage PWM (pulse-width
modulation) signal.

The PWM signal is a method for generating an analog signal
using a digital source.

The control signal connection has three conductors: signal input,
signal output and signal reference. Connect the cable to the

TM05 5547 3812

control box with a TE Mini Superseal plug. The signal cable can
be supplied with the pump as an accessory.

TM06 5819 0216

The plug has now
been removed

4

from the power
supply plug.

Fig. 10 Starting up the pump

TM05 5548 3812

TM05 3058 0912

8

5. Starting up the product

10 Min.

1

2

40 180

A

40440

18

10 Min.

2

1

3

5.1 Before startup

Do not start the pump until the system has been filled with liquid
and vented. Make sure that the required minimum inlet pressure
is available at the pump inlet.

See sections 3. Installing the product and 10. Technical data and

installation dimensions.

5.2 Venting the pump

5.3 Venting the heating system

English (GB)

Fig. 12 Venting the pump

The pump is self-venting. You do not have to vent the pump
before startup.

Air in the pump may cause noise. This noise ceases when the
pump has run for a few minutes.

You obtain quick venting of the pump by setting the pump to
speed III for a short period. How fast the pump is vented depends
on the system size and design.

When you have vented the pump, i.e. when the noise has
ceased, set the pump according to the recommendations. See
section 7. Control functions.

You cannot vent the system through the pump. See section

5.3 Venting the heating system.

The pump must not run dry.

Fig. 13 Venting of the heating system

Vent the heating system as follows:

• via an air vent valve installed above the pump (1)

• via a pump housing with air separator (2).
In heating systems that often contain much air, we recommend

that you install pumps with pump housing with air separator, i.e.
ALPHAx XX-XX A.

TM05 3075 0912

When the heating system has been filled with liquid, do as
follows:

1. Open the air vent valve.

2. Set the pump to speed III.

3. Let the pump run for a short period

4. Set the pump according to the recommendations. See section

7. Control functions.

Repeat the procedure, if necessary.

The pump must not run dry.

5.4 First startup

• The light in the control panel shows that the power supply has
been switched on. See fig. 10.

• Factory setting: AUTO

ADAPT

.

TM03 8931 2707

9

6. Product introduction

1

2

3

Max. 95 %RH

IPX4D

Min./Max.
+2 C / +110

Max. 1.0 MPa
(10 bar)

4

5

6

7

°°

Min./Max.
0 C / +40

< 43 db(A)

°°

English (GB)

6.1 Product description

TM06 45820 2515TM06 1716 2614

Fig. 15 Model type on the packaging

TM05 3055 0912TM05 3056 0912

ALPHA2/ALPHA3, referred to as ALPHAx in the following, is a
complete range of circulator pumps.

6.1.1 Model type

These installation and operating instructions cover ALPHA2
model B, C and D, and ALPHA3. The model type is stated on the
packaging and nameplate. See figures 15 and 16.

Fig. 14 Pumped liquids, warnings and operating conditions

Fig. 16 Model type on the nameplate

6.2 Applications

The ALPHAx circulator pump is designed for the circulation of
water in heating systems, domestic hot-water systems as well as
air-conditioning and cold-water systems.

Cold-water systems are defined as systems where the ambient
temperature is higher than the temperature of the pumped liquid.

ALPHAx is the best choice for the following systems:

• underfloor heating systems

• one-pipe systems

• two-pipe systems.

ALPHAx is suitable for the following:

• Systems with constant or variable flows where you want to
optimise the setting of the pump duty point.

• Systems with variable flow-pipe temperature.

• Systems where you want automatic night setback.

• Balancing of domestic heating systems.

10

6.3 Pumped liquids

1

8

9

7

6

5

4

3

2

10

15

16

14

13

12

11

AUTO

ADAPT

ALPHA 2 25-60 180

For more information about the pumped liquids, warnings and
operating conditions, see fig. 14.

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 suitable for the following liquids:

• Thin, clean, non-aggressive and non-explosive liquids, not
containing solid particles or fibres.

• Cooling liquids, not containing mineral oil.

• Domestic hot water
Maximum: 14 °dH
Maximum: 65 °C
Maximum peak: 70 °C.
For water with a higher degree of hardness, we recommend
that you use a direct-coupled TPE pump.

• Softened water.

The kinematic viscosity of water is 1 mm
pump is used for a liquid with a higher viscosity, the hydraulic
performance of the pump will be reduced.

Example: 50 % glycol at 20 °C means a viscosity of approx. 10

2

mm

/s (10 cSt) and a reduction of the pump performance by

approx. 15 %.
Do not use additives that can or will disturb the functionality of the

pump.
When selecting a pump, take the viscosity of the pumped liquid

into consideration.

CAUTION

Flammable material

Minor or moderate personal injury.

- Do not use the pump for flammable liquids, such
as diesel oil and petrol.

WARNING

Biological hazard

Death or serious personal injury.

- In domestic hot-water systems, the temperature of
the pumped liquid must always be above 50 °C
due to the risk of legionella.

WARNING

Biological hazard

Death or serious personal injury.

- In domestic hot-water systems, the pump is
permanently connected to the mains water.
Therefore, do not connect the pump by a hose.

CAUTION

Corrosive substance

Minor or moderate personal injury.

- Do not use the pump for aggressive liquids, such
as acids and seawater.

2

/s (1 cSt) at 20 °C. If the

6.4 Identification

6.4.1 Nameplate

Fig. 17 Nameplate

Pos. Description

1 Pump type

Rated current [A]:

2

• Min.: Minimum current [A]

• Max.: Maximum current [A]

3 CE mark and approvals

EEI: Energy Efficiency Index
Part 1: Indicating whether the pump is tested in
accordance with the following:

4

Part 2: Stand-alone product
Part 3: Integrated product according to EN

16297-1:2012 and EN 16297-2:2012.
5 Voltage [V]
6 Product number
7 Serial number
8 Model
9 Country of origin

Input power P1 [W]:

10

• Min.: Minimum input power P1 [W]

• Max.: Maximum input power P1 [W]
11 Maximum system pressure [MPa]
12 Enclosure class
13 Temperature class

Production code:

14

• 1st and 2nd figures: year

• 3rd and 4th figures: week
15 Frequency [Hz]
16 QR code

English (GB)

TM05 3079 0912

11

The table below shows the ALPHAx models with built-in functions.

English (GB)

Functions/features

AUTO

ADAPT

Proportional pressure ●●●●
Constant pressure ●●●●
Constant curve ●●●●
Automatic night setback ●●●●
Manual summer mode ●●●
Dry-running protection ●●
ALPHA Reader ●
High-torque start ●●
ALPHAx XX-40 ●●●●
ALPHAx XX-50 ●●●●
ALPHAx XX-60 ●●●●
ALPHAx XX-80 ●●●

6.4.2 Type key

Example ALPHAx 25 -40 N 180

Pump type
Blank: Standard version
L: Limited version

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

Maximum head [dm]
Blank: Cast-iron pump housing

A: Pump housing with air separator
N: Stainless-steel pump housing

Port-to-port length [mm]

Model B

2012

●●●●

Model C

2015

Model D

2015

ALPHA3 model A

2015

12

7. Control functions

1

2

3

4

5

6

7

7.1 Elements on the control panel

Button

presses

0

Active light fields Description

factory setting

AUTO

ADAPT

Fig. 18 Control panel

Pos. Description

Display showing the actual power consumption in

1

watt or the actual flow in m

3

/h.

Nine light fields indicating the pump setting.

2

See section 7.3 Light fields indicating the pump

setting.

Light field indicating the status of automatic night

3

setback.
Button for enabling or disabling of automatic night

4

setback and manual summer mode.

5 Button for selection of pump setting.

Button for selection of parameter to be shown in the

6

display, i.e. actual power consumption in watt or
actual flow in m

3

/h.

7 Connectivity symbol.

7.2 Display

The display (1) is on when you have switched on the power
supply.

The display shows the actual pump power consumption in watt
(integer) or the actual flow in m

3

/h in steps of 0.1 m3/h during

operation.
Faults preventing the pump from operating properly, for example

a blocked rotor, are indicated in the display by fault codes. See
section 9. Fault finding.

If a fault is indicated, correct the fault and reset the pump by
switching the power supply off and on.

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

7.3 Light fields indicating the pump setting

The pump has ten optional performance settings which you can
select with the button (5). See fig. 18.

The pump setting is indicated by nine light fields in the display.
See fig. 19.

1

Lowest
proportional-pressure
curve, PP1

2

Intermediate
proportional-pressure
curve, PP2

3

Highest
proportional-pressure
curve, PP3

4

Lowest
constant-pressure curve,
CP1

TM05 3060 0912

5

Intermediate
constant-pressure curve,
CP2

6

Highest
constant-pressure curve,
CP3

7

8

9

10

Constant curve/constant
speed III

Constant curve/constant
speed II

Constant curve/constant
speed I

AUTO

ADAPT

For information about the function of the settings, see section

9. Fault finding.

7.4 Light field indicating the status of automatic night setback

Light in shows that automatic night setback is active. See fig.

18, pos. 3. See also section 7.5 Button for en ablin g or disa bling

of automatic night setback.

7.5 Button for enabling or disabling of automatic night setback

The button enables and disables automatic night setback. See
fig. 18, pos. 4.

Automatic night setback is only relevant for heating systems
prepared for this function. See section 9. Fault finding.

The light field is on when automatic night setback is
active. See fig. 18, pos. 3.

Factory setting: automatic night setback is not active.
If you have set the pump to speed I, II or III, you cannot select

automatic night setback.

English (GB)

Fig. 19 Nine light fields

TM05 3061 0912

13

7.6 Button for selection of pump setting

Q

H

PP3

PP2

PP1

Q

H

H

Q

H

CP3

CP2

CP1

English (GB)

Every time you press the button , the pump setting is changed.
See fig. 18, pos. 5.

A cycle is ten button presses. See section 7.3 Light fields

indicating the pump setting .

7.7 Control modes

7.7.1 Pump setting for two-pipe heating systems

Fig. 20 Selection of pump setting for system type

Factory setting: AUTO
Recommended and alternative pump settings according to fig.

20:

Heating

system

Two-pipe

system

Recommended Alternative

AUTO

* See section 11.1 Guide to performance curves.

ADAPT

function adjusts the pump performance to the

ADAPT

AUTO

The AUTO
actual heat demand in the system. As the performance is
adjusted gradually, we recommend that you leave the pump in the
AUTO

mode at least one week before changing the pump

ADAPT

setting.
If the power supply fails or is disconnected, the pump stores the

AUTO
automatic adjustment when the power supply has been restored.

setting in an internal memory and resumes the

ADAPT

Proportional-pressure curve, PP1, PP2 or PP3

Proportional-pressure control adjusts the pump performance to
the actual heat demand in the system, but the pump performance
follows the selected performance curve, PP1, PP2 or PP3. See
fig. 21 where PP2 has been selected. For further information, see
section 11.1 Guide to performance curves.

ADAPT

ADAPT

.

Pump setting

*

Proportional-pressure

curve, PP1, PP2 or PP3*

Fig. 21 Three proportional-pressure curves/settings

The selection of the proportional-pressure setting depends on the
characteristics of the heating system and the actual heat
demand.

7.7.2 Pump setting for one-pipe heating systems

TM05 3063 0912

Q

Fig. 22 Selection of pump setting for system type

Factory setting: AUTO

ADAPT

.

Recommended and alternative pump settings according to fig.

22:

Heating

system

One-pipe

system

Recommended Alternative

Constant

curve/constant

speed, I, II or III*

Pump setting

Constant-pressure curve

CP1, CP2 or CP3*

* See section 11.1 Guide to performance curves.

AUTO

ADAPT

See section 7.7.1 Pump setting for two-pipe heating systems.

Constant-pressure curve, CP1, CP2 or CP3

Constant-pressure control adjusts the pump performance to the
actual heat demand in the system, but the pump performance
follows the selected performance curve, CP1, CP2 or CP3. See
fig. 23 where CP1 has been selected. For further information, see
section 11.1 Guide to performance curves.

TM05 3064 0912TM05 3065 0912

TM05 3066 0912

Fig. 23 Three constant-pressure curves and settings

The selection of the constant-pressure setting depends on the
characteristics of the heating system and the actual heat
demand.

14

7.7.3 Pump setting for underfloor heating systems

Q

H

Q

H

CP3

CP2

CP1

Q

H

Q

H

7.7.4 Pump setting for domestic hot-water systems

English (GB)

Fig. 24 Selection of pump setting for system type

Factory setting: AUTO

ADAPT

.

Recommended and alternative pump settings according to fig.

24:

Pump setting

System type

Recommended Alternative

Underfloor

heating

Constant-pressure

curve, CP1, CP2 or

CP3*

Constant curve/constant

speed, I, II or III

* See section 11.1 Guide to performance curves.

AUTO

ADAPT

See section 7.7.1 Pump setting for two-pipe heating systems.

Constant-pressure curve, CP1, CP2 or CP3

The constant-pressure control adjusts the flow to the actual heat
demand in the system keeping a constant pressure at the same
time. The pump performance follows the selected performance
curve, CP1, CP2 or CP3. See fig. 25 where CP1 has been
selected. For further information, see section 11.1 Guide to

performance curves.

TM05 3067 0912

Fig. 26 Selection of pump setting for system type

Factory setting: AUTO

ADAPT

.

Recommended and alternative pump settings according to fig.

26:

Pump setting

System type

Recommended Alternative

Domestic hot

water

Constant curve/constant

speed, I, II or III

Constant-pressure

curve, CP1, CP2 or

* See section 11.1 Guide to performance curves.

Constant curve/constant speed, I, II or III

At constant-curve/constant-speed operation, the pump runs at a
constant speed, independent of the actual flow demand in the
system. The pump performance follows the selected performance
curve, I, II or III. See fig. 27 where II has been selected. For
further information, see section 11.1 Guide to performance

curves.

TM05 3068 0912

CP3*

TM05 3068 0912

Fig. 27 Three constant curve/constant speed settings

TM05 3066 0912

Fig. 25 Three constant-pressure curves or settings

The selection of the constant-pressure setting depends on the
characteristics of the heating system and the actual heat
demand.

The selection of the constant-curve/constant-speed setting
depends on the characteristics of the heating system and the
number of taps likely to be opened at the same time.

7.7.5 Changing from recommended to alternative pump

setting

Heating systems are relatively slow systems that cannot be set to
the optimum operation within minutes or hours.

If the recommended pump setting does not give the desired
distribution of heat in the rooms of the house, change the pump
setting to the shown alternative.

15

7.8 Pump performance

III

II

I

H

PP3

CP3

CP2

PP1

CP1

PP2

English (GB)

Relation between pump setting and pump performance
Figure 28 shows the relation between pump setting and pump

performance by means of curves. See also section

11. Performance curves.

Fig. 28 Pump setting in relation to pump performance

Setting Pump curve Function

AUTO
factory
setting

PP1

PP2

PP3

CP1

CP2

CP3

ADAPT

Highest to lowest
proportional-pressure
curve

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 AUTO
within a defined performance range. See fig. 28.

• Adjusting the pump performance to the size of the system.

• Adjusting the pump performance to the variations in load over time.
In AUTO
The duty point of the pump will move up or down on the lowest proportional-pressure curve,

depending on the heat demand. See fig. 28.
The head is reduced at falling heat demand and increased at rising heat demand.

The duty point of the pump will move up or down on the intermediate proportional-pressure
curve, depending on the heat demand. See fig. 28.
The head is reduced at falling heat demand and increased at rising heat demand.

The duty point of the pump will move up or down on the highest proportional-pressure curve,
depending on the heat demand. See fig. 28.
The head is reduced at falling heat demand and increased at rising heat demand.

The duty point of the pump will move out or in on the lowest constant-pressure curve, depending
on the heat demand in the system. See fig. 28.
The head is kept constant, irrespective of the heat demand.

The duty point of the pump will move out or in on the intermediate constant-pressure curve,
depending on the heat demand in the system. See fig. 28.
The head is kept constant, irrespective of the heat demand.

The duty point of the pump will move out or in on the highest constant-pressure curve, depending
on the heat demand in the system. See fig. 28.
The head is kept constant, irrespective of the heat demand.

ADAPT

ADAPT

The pump runs on a constant curve which means that it runs at a constant speed.
In speed III, the pump is set to run on the maximum curve under all operating conditions. See fig.

III Speed III

28.

You obtain quick venting of the pump by setting the pump to speed III for a short period. See
section 5.2 Venting the pump.

The pump runs on a constant curve which means that it runs at a constant speed.

II Speed II

In speed II, the pump is set to run on the intermediate curve under all operating conditions. See
fig. 28.

The pump runs on a constant curve which means that it runs at a constant speed.

I Speed I

In speed I, the pump is set to run on the minimum curve under all operating conditions. See fig.

28.

The pump changes to the curve for automatic night setback, i.e. absolute minimum performance

Automatic night
setback or manual
summer mode

and power consumption, provided that certain conditions are met. In manual summer mode, the
pump is stopped to save energy and only the electronics are running. To avoid liming and
blocking of the pump, the pump is started frequently in a short period. See section 9. Fault

finding.

function enables the pump to control the pump performance automatically

, the pump is set to proportional-pressure control.

TM05 2771 0512

16

7.9 Bypass valve

ALP

AUTO

BYPASS

1

2

Q

min.

3

3

A

8. Operating the product

8.1 Using automatic night setback

English (GB)

HA2 L

TM061251 2014

Fig. 30 Automatic night setback activated

Do not use automatic night setback when the pump
is installed in the return pipe of the heating system.

TM05 3076 0912

If you select speed I, II or III, automatic night setback is disabled.

Fig. 29 Systems with bypass valve

The purpose of the bypass valve is to ensure that the heat from
the boiler can be distributed when all valves in the
underfloor-heating circuits and/or thermostatic radiator valves are
closed.

System elements:

• bypass valve

• flowmeter, pos. A.
The minimum flow must be available when all valves are closed.
The pump setting depends on the type of bypass valve used, i.e.

manually operated or thermostatically controlled.

7.9.1 Setting the bypass valve

7.9.2 Manually operated

1. Adjust the bypass valve with the pump in setting I (speed I).

2. Observe the minimum flow of the system. See the
manufacturer's instructions.

3. After setting the bypass valve, set the pump according to

7. Control functions.

7.9.3 Automatically operated, thermostatically controlled

1. Adjust the bypass valve with the pump in setting I (speed I).

2. Observe the minimum flow for the system. Consult the
manufacturer's instructions.

After adjusting the bypass valve, set the pump to the lowest or
highest constant-pressure curve. For further information about
pump settings in relation to performance curves, see section

9. Fault finding.

You do not have to re-enable automatic night setback if the power
supply has been switched off.

If the power supply is switched off when the pump is running on
the curve for automatic night setback, the pump starts in normal
operation. See section 9. Fault finding.

The pump changes back to the curve for automatic night setback
when the condition for automatic night setback is fulfilled again.
See section 8.2 Function of automatic night setback.

If there is insufficient heat in the heating system, check whether
automatic night setback has been enabled. If yes, disable the
function.

To ensure the optimum function of automatic night setback, the
following conditions must be fulfilled:

• The pump must be installed in the flow pipe. See fig. 30, pos.
A.

• The boiler must incorporate automatic control of the liquid
temperature.

Enable automatic night setback by pressing . See section

7.5 Button for enabling or disabling of automatic night setback.

Light in means that automatic night setback is active.

17

8.2 Function of automatic night setback

English (GB)

Once you have enabled automatic night setback, the pump
automatically changes between normal duty and automatic night
setback. See section 9. Fault finding.

Changeover between normal duty and automatic night setback
depends on the flow-pipe temperature.

The pump automatically changes over to automatic night setback
when a flow-pipe temperature drop of more than 10 to 15 °C
within approx. two hours is registered. The temperature drop
must be at least 0.1 °C/min.

Changeover to normal duty takes place without a time lag when
the flow-pipe temperature has increased by approx. 10 °C.

8.3 Setting manual summer mode

Manual summer mode is available from model C.
In manual summer mode, the pump is stopped to save energy

and only the electronics are running. To avoid liming and blocking
of the pump, the pump is started frequently in a short period. This
is an alternative to shutting down the pump if there is a risk of
lime deposit.

8.5 ALPHA Reader

You can use this device to balance the radiators in a heating
system in a fast and safe way.

ALPHA Reader provides safe readout of internal data from the
pump. The data are transmitted to a handheld device. See fig. 32.

There is a risk of lime deposit in case of a long
standstill period.

In manual summer mode, the pump starts frequently at low speed
to avoid blocking the rotor. The display is turned off.

If any alarms occur during manual summer mode, no alarms will
be shown. When manual summer mode is deactivated again, only
the actual alarms will be displayed.

If the automatic night setback mode is enabled before setting the
manual summer mode, the pump will return to automatic night
setback mode after manual summer mode.

8.3.1 Activating manual summer mode

Activate the manual summer mode by pressing the automatic
night setback button 3 to 10 seconds. See fig. 30. The green light
field flashes quickly. After a short while the display turns off and
the green light field flashes slowly.

Fig. 31 Automatic night setback button

8.3.2 Deactivating manual summer mode

Deactivate the manual summer mode by pressing any of the
buttons. Then the pump returns to the previous mode and setting.

8.4 Dry-running protection

The dry-running protection protects the pump against dry running
during start and normal operation. See section 9. Fault finding.

During first startup and in case of dry-run, the pump will operate
for 30 minutes before displaying the error code E4.

Fig. 32 ALPHA Reader

Activating and deactivating the ALPHA Reader mode

If you press [W/m

3

/h] and holds it for 3 seconds, ALPHA
Reader is either activated or deactivated, depending on the
previous state.

When ALPHA Reader is active, the AUTONight indicator light
flashes rapidly, indicating activity.

You can activate and deactivate the ALPHA Reader mode in all
pump modes.

For further information, see the ALPHA Reader documentation in
Grundfos Product Center on www.grundfos.com.

8.6 High-torque start

If the shaft is blocked and you cannot start the pump, the display
indicates the alarm "E1 - "- -"", with a delay of 20 minutes.

The pump attempts to restart until the pump is powered off.
During the start attempts, the pump vibrates due to the

high-torque load.

TM05 3149

TM06 4452 2315

18

9. Fault finding

DANGER

Electric shock

Death or serious personal injury

- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.

CAUTION

Pressurised system

Minor or moderate personal injury

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

Fault Control panel Cause Remedy

1. The pump does not
run.

2. Noise in the system. Shows a number. a) Air in the system. Vent the system.

3. Noise in the pump. Shows a number. a) Air in the pump. Let the pump run. The pump vents itself

4. Insufficient heat. Shows a number. a) The pump performance is too low. Increase the suction head.

Light off. a) One fuse in the installation is blown. Replace the fuse.

Cut in the circuit breaker.

the specified range.

the pipe system. Reset the error by
pressing any button or switch off the
power supply.

See section 5.3 Venting the heating

system.

over time.
See section 5.2 Venting the pump.

air volume in the expansion tank, if
installed.

Changes between "- -"
and "E 1".

Changes between "- -"
and "E 2".

Changes between "- -"
and "E 3".

Changes between "- -"
and "E 4".

b) The current-operated or

voltage-operated circuit breaker has

tripped.
c) The pump is defective. Replace the pump.
a) The rotor is blocked. Remove the impurities.

a) Insufficient supply voltage. Check that the supply voltage falls within

a) Electrical fault. Replace the pump.

a) Dry-running protection. Make sure that there is sufficient liquid in

b) The flow is too high. Reduce the suction head.

b) The inlet pressure is too low. Increase the inlet pressure, or check the

English (GB)

19

10. Technical data and installation dimensions

English (GB)

10.1 Technical data

Supply voltage 1 x 230 V ± 10 %, 50/60 Hz, PE
Motor protection The pump requires no external motor protection.
Enclosure class IPX4D
Insulation class F
Relative humidity Maximum 95 % RH
System pressure Maximum 1.0 MPa, 10 bar, 102 m head

Liquid temperature Minimum inlet pressure

Inlet pressure

EMC (electromagnetic
compatibility)

Sound pressure level The sound pressure level of the pump is lower than 43 dB(A).
Ambient temperature 0-40 °C
Temperature class TF110 to CEN 335-2-51
Surface temperature The maximum surface temperature will not exceed 125 °C.
Liquid temperature 2-110 °C
Power consumption in

manual summer mode

Specific EEI values

To avoid condensation in the control box and stator, the liquid
temperature must always be higher than the ambient
temperature.

≤ 75 °C 0.005 MPa, 0.05 bar, 0.5 m head
90 °C 0.028 MPa, 0.28 bar, 2.8 m head
110 °C 0.108 MPa, 1.08 bar, 10.8 m head
EMC Directive: 2004/108/EC.

Standards used: EN 55014-1:2006 and EN 55014-2:1997.

< 0.8 watt

ALPHAx XX-40: EEI ≤ 0.15
ALPHAx XX-50: EEI ≤ 0.16
ALPHAx XX-60: EEI ≤ 0.17
ALPHAx XX-80: EEI ≤ 0.18
ALPHAx XX-40 A: EEI ≤ 0.18
ALPHAx XX-60 A: EEI ≤ 0.20

Ambient

temperature

[°C]

02110
10 10 110
20 20 110
30 30 110
35 35 90
40 40 70

WARNING

Biological hazard

Death or serious personal injury.

- In domestic hot-water systems, we recommend
that you keep the liquid temperature below 65 °C
to eliminate the risk of lime precipitation. The
temperature of the pumped liquid must always be
above 50 °C due to the risk of legionella.
Recommended boiler temperature: 60 °C

If the temperature of the pumped liquid is lower than
the ambient temperature, make sure that the pump is
installed with the pump head and plug in position 6
o'clock.

Liquid temperature

Min.

[°C]

Max.

[°C]

20

10.2 Dimensions, ALPHAx XX-40, XX-50, XX-60, XX-80

Dimensional sketches and table of dimensions.

Fig. 33 ALPHAx XX-40, XX-50, XX-60

English (GB)

TM05 2364 5011

Pump type

L1 B1 B2 B3 B4 H1 H2 H3 G

ALPHAx 15-40 130 130 60.5 60.5 44.5 44.5 35.8 103.5 52 1
ALPHAx 15-50 130 130 60.5 60.5 44.5 44.5 35.8 103.5 52 1*
ALPHAx 15-60 130 130 60.5 60.5 44.5 44.5 35.8 103.5 52 1*
ALPHAx 15-80 130 130 60.5 60.5 44.5 44.5 35.8 103.5 52 1*
ALPHAx 25-40 130 130 60.5 60.5 44.5 44.5 35.8 103.5 52 1 1/2
ALPHAx 25-40 N 130 130 60.5 60.5 44.5 44.5 36.8 103.5 52 1 1/2
ALPHAx 25-50 130 130 60.5 60.5 44.5 44.5 35.8 103.5 52 1 1/2
ALPHAx 25-50 N 130 130 60.5 60.5 44.5 44.5 36.8 103.5 52 1 1/2
ALPHAx 25-60 130 130 60.5 60.5 44.5 44.5 35.8 103.5 52 1 1/2
ALPHAx 25-60 N 130 130 60.5 60.5 44.5 44.5 36.8 103.5 52 1 1/2
ALPHAx 25-80 130 130 60.5 60.5 44.5 44.5 36.8 103.5 52 1 1/2
ALPHAx 25-80 N 130 130 60.5 60.5 44.5 44.5 36.8 103.5 52 1 1/2
ALPHAx 25-40 180 180 60.5 60.5 44.5 44.5 35.9 103.5 52 1 1/2
ALPHAx 25-40 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 1 1/2
ALPHAx 25-50 180 180 60.5 60.5 44.5 44.5 35.9 103.5 52 1 1/2
ALPHAx 25-50 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 1 1/2
ALPHAx 25-60 180 180 60.5 60.5 44.5 44.5 35.9 103.5 52 1 1/2
ALPHAx 25-60 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 1 1/2
ALPHAx 25-80 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 1 1/2
ALPHAx 25-80 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 1 1/2
ALPHAx 32-40 180 180 60.5 60.5 44.5 44.5 35.9 103.5 52 2
ALPHAx 32-40 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 2
ALPHAx 32-50 180 180 60.5 60.5 44.5 44.5 35.9 103.5 52 2
ALPHAx 32-50 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 2
ALPHAx 32-60 180 180 60.5 60.5 44.5 44.5 35.9 103.5 52 2
ALPHAx 32-60 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 2
ALPHAx 32-80 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 2
ALPHAx 32-80 N 180 180 60.5 60.5 44.5 44.5 36.9 103.5 52 2

* UK version: G 1 1/2.

Dimensions

21

10.3 Dimensions, ALPHAx 25-40 A, 25-60 A

English (GB)

Dimensional sketches and table of dimensions.

Fig. 34 ALPHAx 25-40 A, 25-60 A

TM05 2574 0212

Pump type

L1 B1 B2 B3 B4 H1 H2 H3 G

ALPHAx 25-40 A 180 180 63.5 98 32 63 50 124 81 1 1/2

ALPHAx 25-60 A 180 180 63.5 98 32 63 50 124 81 1 1/2

Dimensions

22

11. Performance curves

III

II

I

Q

P1

H

III

II

I

PP3

CP3

CP2

PP1

CP1

PP2

11.1 Guide to performance curves

Each pump setting has its own performance curve. However,
AUTO

A power curve, P1, belongs to each performance curve. The
power curve shows the pump power consumption in watt at a
given performance curve.

The P1 value corresponds to the value that you can read from the
pump display. See fig. 35.

covers a performance range.

ADAPT

English (GB)

Fig. 35 Performance curves in relation to pump setting

Setting Pump curve

AUTO

ADAPT

factory setting
PP1 Lowest proportional-pressure curve
PP2 Intermediate proportional-pressure curve
PP3 Highest proportional-pressure curve
CP1 Lowest constant-pressure curve
CP2 Intermediate constant-pressure curve
CP3 Highest constant-pressure curve

Setpoint within the marked area

III Constant curve/constant speed III
II Constant curve/constant speed II
I Constant curve/constant speed I

Curve for automatic night setback/manual
summer mode

For further information about pump settings, see these sections:

7. Control functions

11.2 Curve conditions

The guidelines below apply to the performance curves on the
following pages:

• Test liquid: airless water.

• The curves apply to a density of 83.2 kg/m
temperature of 60 °C.

• All curves show average values and must not be used as
guarantee curves. If a specific minimum performance is
required, individual measurements must be made.

• The curves for speeds I, II and III are marked.

• The curves apply to a kinematic viscosity of 0.474 mm
(0.474 cSt).

• The conversion between head H [m] and pressure p [kPa] has
been made for water with a density of 1000 kg/m
with other densities, for example hot water, the outlet pressure
is proportional to the density.

• Curves obtained according to EN 16297.

3

and a liquid

2

/s

3

. For liquids

TM05 2578 0312

23

11.3 Performance curves, ALPHAx XX-40 (N)

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4

Q [m³/h]

0

1

2

3

4

[m]

H

III

II

I

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4

Q [m³/h]

0

5

10

15

20

[W]

P1

III

II

I

PP1

CP1

PP2

CP2

PP3

CP3

English (GB)

Fig. 36 ALPHAx XX-40

Setting

AUTO

ADAPT

Min. 30.04

Max. 18 0.18

P1

[W]

3-18 0.04 - 0.18

I

1/1

[A]

TM05 1672 4111

24

11.4 Performance curves, ALPHAx XX-50 (N)

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8

Q [m³/h]

0

1

2

3

4

5

[m]

H

III

II

I

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8

Q [m³/h]

0

5

10

15

20

25

[W]

P1

III

II

I

PP1

CP1

PP3

CP3

CP2

PP2

English (GB)

Fig. 37 ALPHAx XX-50

Setting

AUTO

ADAPT

Min. 30.04

Max. 26 0.24

P1

[W]

3-26 0.04 - 0.24

I

1/1

[A]

TM05 1673 4111

25

11.5 Performance curves, ALPHAx XX-60 (N)

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0

Q [m³/h]

0

1

2

3

4

5

6

III

II

I

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0

Q [m³/h]

0

5

10

15

20

25

30

35

[W]

P1

III

II

I

H

[m]

PP1

CP1

CP3

CP2

PP2

PP3

English (GB)

Fig. 38 ALPHAx XX-60

Setting

AUTO

ADAPT

Min. 30.04

Max. 34 0.32

P1

[W]

3-34 0.04 - 0.32

I

1/1

[A]

TM05 1674 4111

26

11.6 Performance curves, ALPHAx 25-40 A

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Q [m³/h]

0

1

2

3

4

[m]

H

III

II

I

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Q [m³/h]

0

5

10

15

20

[W]

P1

III

II

I

PP1

CP1

CP3

CP2

PP2

PP3

English (GB)

Fig. 39 ALPHAx 25-40 A

Setting

AUTO

ADAPT

Min. 30.04

Max. 18 0.18

P1

[W]

3-18 0.04 - 0.18

I

1/1

[A]

TM05 2016 4211

27

11.7 Performance curves, ALPHAx 25-60 A

1.00.80.60.40.20.0

Q [m³/h]

2.82.62.4

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8

Q [m³/h]

0

1

2

3

4

5

6

[m]

H

III

II

I

1.2 1.4 1.6 1.8 2.0 2.2

0

5

10

15

20

25

30

35

[W]

P1

III

II

I

PP1

CP1

CP3

CP2

PP2

PP3

English (GB)

Fig. 40 ALPHAx 25-60 A

Setting

AUTO

ADAPT

Min. 30.04

Max. 34 0.32

P1

[W]

3-34 0.04 - 0.32

I

1/1

[A]

TM05 2017 4211

28

11.8 Performance curves, ALPHAx XX-80 (N)

PP1

CP1

PP2

CP2

PP3

CP3

English (GB)

Fig. 41 ALPHAx 25-60 A

Setting

AUTO

ADAPT

Min. 30.04

Max. 50 0.44

P1

[W]

3-50 0.04 - 0.44

I

1/1

[A]

TM061285 2114

29

12. Accessories

Rp

R

Rp

mm
mm

R

Rp

Rc

G

English (GB)

12.1 Unions and valve kits

Product numbers, unions

ALPHAx

15-xx*

15-xx N*

25-xx

25-xx N 529971 529972 519805 519806 505539 519808 519809 529977 529978 529979

G 1 1/2

32-xx

32-xx N 509971 ● 529995

3/4 1 1 1/4 1 1 1/4 3/4 1 1 1/4 ∅22 ∅28 ∅15 ∅18 ∅22 ∅28 ∅42

Connection

G 1

529921 529922 529821 529925 529924

G 2

509921 509922

* When ordering for UK versions, use product numbers for 25-xx (G 1 1/2).

● Available on request.

G-threads have a cylindrical form in accordance with the EN-ISO
228-1 standard. R-threads have a conical form in accordance
with the ISO 7-1 standard. In the case of a thread of size 1 1/2",
the threads are specified as G 1 1/2 or R 1 1/2. You can only
screw male G-threads (cylindrical) into female G-threads. You
can screw male R-threads (conical) into female G- or R-threads.
See fig. 42.

12.2 Insulating shells

The pump is supplied with two insulating shells. Type A pumps
with air-separating chamber are not supplied with insulating
shells. However, you can order insulating shells as an accessory.
See table below.

The insulation thickness of the insulating shells corresponds to
the nominal diameter of the pump.

The insulating shells, which are tailored to the individual pump
type, enclose the entire pump housing. The insulating shells are
easy to fit around the pump. See fig. 43.

Pump type Product number Available

ALPHAx XX-XX 130 98091786 spare part
ALPHAx XX-XX 180 98091787 spare part
ALPHAx XX-XX A 505822 accessory

TM06 5867 0216

Fig. 42 G-threads and R-threads

TM06 5822 0216

Fig. 43 Insulating shells

30

12.3 ALPHA plugs

123

Push button LEDs

Fig. 44 ALPHA plugs

Pos. Description

ALPHA straight plug,

1

standard plug connector,
complete

ALPHA angle plug, standard

2

angle plug connection,
complete

ALPHA plug, 90 ° bend to the

3

left, including 4 m cable
ALPHA plug, 90 ° bend to the

left, including 1 m cable and

*

integrated NTC protection
resistor

* This special cable with an active built-in NTC protection

circuit, reduces possible inrush currents. To be used in case of
for instance poor quality of relay components that are
sensitive to inrush current.

Product
number

98284561 spare part

98610291 accessory

96884669 accessory

97844632 accessory

Available

13.2 Application

The new ALPHA SOLAR pump is designed to be integrated in all
kinds of solar systems with either matched-flow or constant-flow
rate.

13.3 Product description

High-efficiency ECM pumps, such as ALPHA SOLAR, must not
be speed-controlled by means of an external speed controller

TM06 5823 0216

which varies or pulses the supply voltage. You can control the
speed with a low-voltage PWM signal from a solar controller to
optimise the solar harvesting and temperature of the system. As a
result, the power consumption of the pump is reduced
considerably.

If no PWM signal is available, you can set the pump to constant
speed, only switched on and off by the controller.

13.4 Operating the product

13.5 Setting by means of the control panel

The user interface is designed with a single push button, one
red/green LED and four yellow LEDs.

.

English (GB)

ALPHA SOLAR cables and plugs can be delivered
on request.

13. ALPHA SOLAR

13.1 Product introduction

TM06 0535 0414

Fig. 46 User interface with one push button and five LEDs

The user interface shows the following:

• operating status

• alarm status

• settings view, after pressing the button.

13.6 Operating status

During operation, the display shows the actual operating status or
the alarm status.

13.7 Alarm status

If the circulator has detected one or more alarms, the red/green
LED switches from green to red. When an alarm is active, the
LEDs indicate the alarm type as defined in the table below. If
multiple alarms are active at the same time, the LEDs only show
the error with the highest priority. The priority is defined by the
sequence of the table.

When there is no active alarm anymore, the user interface
switches back to operating status.

Fig. 45 ALPHA SOLAR pump

TM06 5816 0216

31

13.8 Operating status

14.5 m

14.5 m

7.5 m

7.5 m

PWM C PROFILE SOLAR

CONSTANT CURVE 1

CONSTANT CURVE 2

CONSTANT CURVE 3

CONSTANT CURVE 4

PWM C PROFILE SOLAR

8.5 m

6.5 m

5.5 m

4.5 m

10.5 m6.5 m

ON

230 V

No.2

5 mm

<160 V

ON

230 V

ON

English (GB)

The LEDs indicate the actual operating status or alarm status.
This circulator pump is either for internal control with

constant-curve control or external PWM-signal control with profile
C. See fig. 47.

Fig. 47 Operating mode

PWM can only operate if you have set the pump to PWM mode.
Press the button five times until only the green LED is on. When
you connect the PWM cable, the yellow LEDs are on and you can
control the pump via the PWM signal. See fig. 47.

TM06 5817 0216

13.9 Fault finding the product

The alarm status is indicated by the LEDs.

Fault Description

The rotor is blocked. Deblock
the rotor.

The supply voltage is low. Make
sure that there is sufficient
voltage supply to the pump.

Electrical error. Replace the
pump and send the pump to the
nearest Grundfos service
centre.

DANGER

Electric shock

Death or serious personal injury

- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.

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.

32

14. External PWM control mode and signals

Max.

PWM input signal [%]

Speed

PWM can only operate when the pump is in curve 4 operation.

PWM profile C input signal

At high PWM-signal percentages (duty cycles), a hysteresis
prevents the circulator pump from starting and stopping if the
input signal fluctuates around the shifting point. At low
PWM-signal percentages, the circulator speed is high for safety
reasons. In case of a cable breakage in a solar system, the
circulator pumps will continue to run at maximum speed to
transfer heat from the primary heat exchanger.

Fig. 48 PWM input profile C

15. Digital solar-circuit controller

To replace UPS SOLAR with a new ALPHA SOLAR pump which
fulfils the EuP norm, we offer two solutions:

• Replace the SOLAR controller with a controller suitable for
high-efficiency pumps.

• Keep the old controller and use the pump with phase control.
Use a converter, SIKON HE, which can convert the phase
control to a PWM signal.

When you use SIKON HE, you can replace the conventional
230-V UPS solar pumps by Grundfos ALPHA SOLAR pumps
without having to change the controller to a high-efficiency pump
controller. The function of the performance control of the pump is
maintained.

TM04 9985 0311

English (GB)

PWM input signal

[%]

≤ 10 Maximum speed: max.
> 10 / ≤ 84 Variable speed: min. to max.
> 84 / ≤ 91 Minimum speed: nominal speed

> 91/95 Hysteresis area: on/off

> 95 / ≤ 100 Standby mode: off

Pump status

Fig. 49 Digital solar circuit controller

For further information about the controller, see www.prozeda.de.

16. Technical data

System pressure Maximum 1.0 MPa (10 bar)

Minimum inlet pressure

Maximum liquid
temperature

Enclosure class IPX4D

Motor protection No external protection needed

Approvals and
markings

Water-propylene glycol
mixture

0.05 MPa (0.50 bar) at a liquid
temperature of 95 °C

2-110 °C at an ambient temperature
of 70 °C

2-130 °C at an ambient temperature
of 60 °C

VDE, CE

Maximum water-propylene glycol
mixture is 50 %.
Note: The water-propylene glycol
mixture reduces the performance due
to higher viscosity.

TM065809 0216

33

ALPHA SOLAR xx-75 130/180

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

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



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

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         

4>OV@

               

4>PñK@











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3

EEI ≤ 0.20 Part 3
P

L,avg

≤ 20 W

Setting Max. head

nom

Curve 1 4.5 m
Curve 2 5.5 m
Curve 3 6.5 m
Curve 4 7.5 m

Setting Max. P

1 nom

Curve 1 19 W
Curve 2 28 W
Curve 3 35 W
Curve 4 45 W

B1 B2

H2H1

L3

English (GB)

Fig. 50 Performance curve

Note: PWM speed curves on request.

Electrical data, 1 x 230 V, 50 Hz Settings

Speed P

Min. 2* 0.04 1 - - 4
Max. 45 0.48

* Only in minimum PWM speed operation

[W] I

1

[A] PWM C PP CP CC

1/1

TM06 3658 0815

H3

L1

Pump type

ALPHA SOLAR 15-75 130 130 90 72 45 36 92 128 G 1 1.8
ALPHA SOLAR 25-75 130 130 90 72 45 36 92 128 G 1 1/2 1.9
ALPHA SOLAR 25-75 180 180 90 72 45 36 92 128 G 1 1/2 2.0

34

TM06 6493 1516

Dimensions [mm]

L1 L3 B1 B2 H1 H2 H3

TM06 5636 5115

Connections Weight [kg]

ALPHA SOLAR xx-145 130/180

              

4>PñK@

















>P@

+















>N3D@

S

        

4>OV@

              

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EEI ≤ 0.20 Part 3
P

L,avg

≤ 25 W

Setting Max. head

nom

Curve 1 6.5 m
Curve 2 8.5 m
Curve 3 10.5 m
Curve 4 14.5 m

Setting Max. P

1 nom

Curve 1 39 W
Curve 2 45 W
Curve 3 52 W
Curve 4 60 W

B1 B2

H2H1

L3

Note: PWM speed curves on request.

Electrical data, 1 x 230 V, 50 Hz Settings

Speed P

[W] I

1

[A] PWM C PP CP CC

1/1

Min. 2* 0.04 1 - - 4
Max. 60 0.58

* Only in minimum PWM speed operation

English (GB)

TM06 3652 0815

H3

L1

Pump type

ALPHA SOLAR 25-145 180 180 90 72 45 25 103 128 G 1 1/2 2.0

17. 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 ALPHAx pumps:

• 92 % recycling

• 3 % incineration

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

way according to local regulations.
For further information, see the end-of-life information at

www.grundfos.com.

TM06 6493 1516

Dimensions [mm]

L1 L3 B1 B2 H1 H2 H3

Subject to alterations.

TM06 5636 5115

Connections Weight [kg]

35

Declaration of conformity

Declaration of conformity 1

GB: EC declaration of conformity

We, Grundfos, declare under our sole responsibility that the product
Grundfos ALPHA2/ALPHA3, to which this declaration relates, is in
conformity with these Council directives on the approximation of the laws
of the EC member states:

CZ: ES prohlášení o shodě

My firma Grundfos prohlašujeme na svou plnou odpovědnost, že výrobek
Grundfos ALPHA2/ALPHA3/ALPHA3, na nějž se toto prohlášení
vztahuje, je v souladu s ustanoveními směrnice Rady pro sblížení
právních předpisů členských států Evropského společenství v oblastech:

DK: EF-overensstemmelseserklæring

Vi, Grundfos, erklærer under ansvar at produktet Grundfos
ALPHA2/ALPHA3/ALPHA3 som denne erklæring omhandler, er i
overensstemmelse med disse af Rådets direktiver om indbyrdes
tilnærmelse til EF-medlemsstaternes lovgivning:

ES: Declaración CE de conformidad

Nosotros, Grundfos, declaramos bajo nuestra propia responsabilidad
que el producto Grundfos ALPHA2/ALPHA3, al cual se refiere esta
declaración, está conforme con las Directivas del Consejo en la
aproximación de las leyes de los Estados Miembros del EM:

FR: Déclaration de conformité CE

Nous, Grundfos, déclarons sous notre seule responsabilité, que
le produit Grundfos ALPHA2/ALPHA3, auquel se réfère cette déclaration,
est conforme aux Directives du Conseil concernant le rapprochement
des législations des Etats membres CE relatives aux normes énoncées
ci-dessous :

HR: EZ izjava o usklađenosti

Mi, Grundfos, izjavljujemo pod vlastitom odgovornošću da je proizvod
Grundfos ALPHA2/ALPHA3, na koji se ova izjava odnosi, u skladu s
direktivama ovog Vijeća o usklađivanju zakona država članica EU:

IT: Dichiarazione di conformità CE

Grundfos dichiara sotto la sua esclusiva responsabilità che il prodotto
Grundfos ALPHA2/ALPHA3, al quale si riferisce questa dichiarazione, è
conforme alle seguenti direttive del Consiglio riguardanti il
riavvicinamento delle legislazioni degli Stati membri CE:

LV: EK atbilstības deklarācija

Sabiedrība GRUNDFOS ar pilnu atbildību dara zināmu, ka produkts
Grundfos ALPHA2/ALPHA3, uz kuru attiecas šis paziņojums, atbilst
šādām Padomes direktīvām par tuvināšanos EK dalībvalstu
likumdošanas normām:

PL: Deklaracja zgodności WE

My, Grundfos, oświadczamy z pełną odpowiedzialnością, że nasze
wyroby Grundfos ALPHA2/ALPHA3, których deklaracja niniejsza
dotyczy, są zgodne z następującymi wytycznymi Rady d/s ujednolicenia
przepisów prawnych krajów członkowskich WE:

RO: Declaraţie de conformitate CE

Noi, Grundfos, declarăm pe propria răspundere că produsele Grundfos
ALPHA2/ALPHA3, la care se referă această declaraţie, sunt în
conformitate cu aceste Directive de Consiliu asupra armonizării legilor
Statelor Membre CE:

SE: EG-försäkran om överensstämmelse

Vi, Grundfos, försäkrar under ansvar att produkten Grundfos
ALPHA2/ALPHA3, som omfattas av denna försäkran, är i
överensstämmelse med rådets direktiv om inbördes närmande till
EU-medlemsstaternas lagstiftning, avseende:

SK: Prehlásenie o konformite ES

My firma Grundfos prehlasujeme na svoju plnú zodpovednost',
že výrobok Grundfos ALPHA2/ALPHA3, na ktorý sa toto prehlásenie
vzt'ahuje, je v súlade s ustanovením smernice Rady pre zblíženie
právnych predpisov členských štátov Európskeho spoločenstva v
oblastiach:

KZ: EO сəйкестік туралы мəлімдеме

Біз, Grundfos компаниясы, барлық жауапкершілікпен, осы
мəлімдемеге қатысты болатын Grundfos ALPHA2/ALPHA3 бұйымы
ЕО мүше елдерінің заң шығарушы жарлықтарын үндестіру туралы
мына Еуроодақ кеңесінің жарлықтарына сəйкес келетіндігін
мəлімдейміз:

BG: EC декларация за съответствие

Ние, фирма Grundfos, заявяваме с пълна отговорност, че продукта
Grundfos ALPHA2/ALPHA3/ALPHA3, за който се отнася настоящата

декларация, отговаря на следните указания на Съвета за
уеднаквяване на правните разпоредби на държавите членки на ЕС:

DE: EG-Konformitätserklärung

Wir, Grundfos, erklären in alleiniger Verantwortung, dass das Produkt
Grundfos ALPHA2/ALPHA3/ALPHA3, auf das sich diese Erklärung
bezieht, mit den folgenden Richtlinien des Rates zur Angleichung der
Rechtsvorschriften der EU-Mitgliedsstaaten übereinstimmt:

EE: EL vastavusdeklaratsioon

Meie, Grundfos, deklareerime enda ainuvastutusel, et toode Grundfos
ALPHA2/ALPHA3/ALPHA3, mille kohta käesolev juhend käib, on
vastavuses EÜ Nõukogu direktiividega EMÜ liikmesriikide seaduste
ühitamise kohta, mis käsitlevad:

FI: EY-vaatimustenmukaisuusvakuutus

Me, Grundfos, vakuutamme omalla vastuullamme, että tuote Grundfos
ALPHA2/ALPHA3, jota tämä vakuutus koskee, on EY:n jäsenvaltioiden
lainsäädännön yhdenmukaistamiseen tähtäävien Euroopan neuvoston
direktiivien vaatimusten mukainen seuraavasti:

GR: ∆ήλωση συμμόρφωσης EC

Εμείς, η Grundfos, δηλώνουμε με αποκλειστικά δική μας ευθύνη ότι τα
προϊόντα Grundfos ALPHA2/ALPHA3, στα οποία αναφέρεται η παρούσα
δήλωση, συμμορφώνονται με τις εξής Οδηγίες του Συμβουλίου περί
προσέγγισης των νομοθεσιών των κρατών μελών της ΕΕ:

HU: EK megfelelőségi nyilatkozat

Mi, a Grundfos, egyedüli felelősséggel kijelentjük, hogy a Grundfos
ALPHA2/ALPHA3 termék, amelyre jelen nyilatkozik vonatkozik, megfelel
az Európai Unió tagállamainak jogi irányelveit összehangoló tanács
alábbi előírásainak:

LT: EB atitikties deklaracija

Mes, Grundfos, su visa atsakomybe pareiškiame, kad gaminys Grundfos
ALPHA2/ALPHA3, kuriam skirta ši deklaracija, atitinka šias Tarybos
Direktyvas dėl Europos Ekonominės Bendrijos šalių narių įstatymų
suderinimo:

NL: EC overeenkomstigheidsverklaring

Wij, Grundfos, verklaren geheel onder eigen verantwoordelijkheid dat
het product Grundfos ALPHA2/ALPHA3 waarop deze verklaring
betrekking heeft, in overeenstemming is met de Richtlijnen van de Raad
in zake de onderlinge aanpassing van de wetgeving van de EG lidstaten
betreffende:

PT: Declaração de conformidade CE

A Grundfos declara sob sua única responsabilidade que o produto
Grundfos ALPHA2/ALPHA3, ao qual diz respeito esta declaração, está
em conformidade com as seguintes Directivas do Conselho sobre a
aproximação das legislações dos Estados Membros da CE:

RS: EC deklaracija o usaglašenosti

Mi, Grundfos, izjavljujemo pod vlastitom odgovornošću da je proizvod
Grundfos ALPHA2/ALPHA3, na koji se ova izjava odnosi, u skladu sa
direktivama Saveta za usklađivanje zakona država članica EU:

SI: ES izjava o skladnosti

V Grundfosu s polno odgovornostjo izjavljamo, da so naši izdelki
Grundfos ALPHA2/ALPHA3, na katere se ta izjava nanaša, v skladu z
naslednjimi direktivami Sveta o približevanju zakonodaje za
izenačevanje pravnih predpisov držav članic ES:

UA: Декларація відповідності ЄС

Компанія Grundfos заявляє про свою виключну відповідальність
за те, що продукт Grundfos ALPHA2/ALPHA3, на який поширюється
дана декларація, відповідає таким рекомендаціям Ради з уніфікації
правових норм країн - членів ЄС:

36

Low Voltage Directive (2014/35/EU)
Standard used:

• EN 60335-1:2012/AC:2014

• EN 60335-2-51:2003/A1:2008/A2:2012

EMC Directive (2014/30/EU)
Standards used:

• EN 55014-1:2006/A1:2009

• EN 55014-2:1997/A1:2001/A2:2008

Ecodesign Directive (2009/125/EC)
Circulator pumps: Commission Regulation No 641/2009 and

622/2012
Standards used:

• EN 16297-1:2012

• EN 16297-2:2012

• EN 16297-3:2012

Bjerringbro, 20st of April 2016

Svend Aage Kaae
Technical Director

Grundfos Holding A/S

Poul Due Jensens Vej 7

8850 Bjerringbro, Denmark

Person authorised to compile the technical file and

empowered to sign the EC declaration of conformity.

Declaration of conformity

37

38

Argentina

Bombas GRUNDFOS de Argentina S.A.
Ruta Panamericana km. 37.500 Centro
Industrial Garin
1619 Garín Pcia. de B.A.
Phone: [phone]
Telefax: [phone]

Australia

GRUNDFOS Pumps Pty. Ltd.
P.O. Box 2040
Regency Park
South Australia 5942
Phone: [phone]
Telefax: [phone]

Austria

GRUNDFOS Pumpen Vertrieb Ges.m.b.H.
Grundfosstraße 2
A-5082 Grödig/Salzburg
Tel.: [phone]
Telefax: [phone]

Belgium

N.V. GRUNDFOS Bellux S.A.
Boomsesteenweg 81-83
B-2630 Aartselaar
Tél.: [phone]
Télécopie: [phone]

Belarus

Представительство ГРУНДФОС в
Минске
220125, Минск
ул. Шафарнянская, 11, оф. 56, БЦ
«Порт»
Тел.: [phone]
Факс: [phone]

E-mail: [e-mail]

Bosna and Herzegovina

GRUNDFOS Sarajevo
Zmaja od Bosne 7-7A,
BH-71000 Sarajevo
Phone: [phone]
Telefax: [phone]
www.ba.grundfos.com
e-mail: [e-mail]

Brazil

BOMBAS GRUNDFOS DO BRASIL
Av. Humberto de Alencar Castelo Branco,
630
CEP 09850 - 300
São Bernardo do Campo - SP
Phone: [phone]
Telefax: [phone]

Bulgaria

Grundfos Bulgaria EOOD
Slatina District
Iztochna Tangenta street no. 100
BG - 1592 Sofia
Tel. [phone]
Fax. [phone]
email: [e-mail]

Canada

GRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Phone: [phone]
Telefax: [phone]

China

GRUNDFOS Pumps (Shanghai) Co. Ltd.
10F The Hub, No. 33 Suhong Road
Minhang District
Shanghai 201106
PRC
Phone: [phone]
Telefax: [phone]

Croatia

GRUNDFOS CROATIA d.o.o.
Buzinski prilaz 38, Buzin
HR-10010 Zagreb
Phone: [phone]
Telefax: [phone]
www.hr.grundfos.com

Czech Republic

GRUNDFOS s.r.o.
Čajkovského 21
779 00 Olomouc
Phone: [phone]
Telefax: [phone]

Denmark

GRUNDFOS DK A/S
Martin Bachs Vej 3
DK-8850 Bjerringbro
Tlf.: [phone]
Telefax: [phone]
E-mail: [e-mail]
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: [phone]
Telefax: [phone]

France

Pompes GRUNDFOS Distribution S.A.
Parc d’Activités de Chesnes
57, rue de Malacombe
F-38290 St. Quentin Fallavier (Lyon)
Tél.: [phone]
Télécopie: [phone]

Germany

GRUNDFOS GMBH
Schlüterstr. 33
40699 Erkrath
Tel.: [phone]
Telefax: [phone]
e-mail: [e-mail]
Service in Deutschland:
e-mail: [e-mail]

Greece

GRUNDFOS Hellas A.E.B.E.
20th km. Athinon-Markopoulou Av.
P.O . B o x 7 1
GR-19002 Peania
Phone: [phone]
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: [phone]
Telefax: [phone]

Hungary

GRUNDFOS Hungária Kft.
Park u. 8
H-2045 Törökbálint,
Phone: [phone]
Telefax: [phone]

India

GRUNDFOS Pumps India Private Limited
118 Old Mahabalipuram Road
Thoraipakkam
Chennai 600 096
Phone: [phone]

Indonesia

PT. GRUNDFOS POMPA
Graha Intirub Lt. 2 & 3
Jln. Cililitan Besar No.454. Makasar,
Jakarta Timur
ID-Jakarta 13650
Phone: [phone]
Telefax: [phone] / 460 6901

Ireland

GRUNDFOS (Ireland) Ltd.
Unit A, Merrywell Business Park
Ballymount Road Lower
Dublin 12
Phone: [phone]
Telefax: [phone]

Italy

GRUNDFOS Pompe Italia S.r.l.
Via Gran Sasso 4
I-20060 Truccazzano (Milano)
Tel.: [phone]
Telefax: [phone] / 95838461

Japan

GRUNDFOS Pumps K.K.
1-2-3, Shin-Miyakoda, Kita-ku,
Hamamatsu
431-2103 Japan
Phone: [phone]
Telefax: [phone]

Korea

GRUNDFOS Pumps Korea Ltd.
6th Floor, Aju Building 679-5
Yeoksam-dong, Kangnam-ku, 135-916
Seoul, Korea
Phone: [phone]
Telefax: [phone]

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: [phone]
Telefax: [phone]

Mexico

Bombas GRUNDFOS de México S.A. de
C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
Apodaca, N.L. 66600
Phone: [phone]
Telefax: [phone]

Netherlands

GRUNDFOS Netherlands
Velu we zo om 35
1326 AE Almere
Postbus 22015
1302 CA ALMERE
Tel.: [phone]
Telefax: [phone]
E-mail: [e-mail]

New Zealand

GRUNDFOS Pumps NZ Ltd.
17 Beatrice Tinsley Crescent
North Harbour Industrial Estate
Albany, Auckland
Phone: [phone]
Telefax: [phone]

Norway

GRUNDFOS Pumper A/S
Strømsveien 344
Postboks 235, Leirdal
N-1011 Oslo
Tlf.: [phone]
Telefax: [phone]

Poland

GRUNDFOS Pompy Sp. z o.o.
ul. Klonowa 23
Baranowo k. Poznania
PL-62-081 Przeźmierowo
Tel: [phone]
Fax: [phone]

Portugal

Bombas GRUNDFOS Portugal, S.A.
Rua Calvet de Magalhães, 241
Apartado 1079
P-2770-153 Paço de Arcos
Tel.: [phone]
Telefax: [phone]

Romania

GRUNDFOS Pompe România SRL
Bd. Biruintei, nr 103
Pantelimon county Ilfov
Phone: [phone]
Telefax: [phone]
E-mail: [e-mail]

Russia

ООО Грундф ос Россия
109544, г. Москва, ул. Школьная, 39-41,

стр. 1
Тел. [phone] [phone]
Факс [phone]

E-mail [e-mail]

Serbia

Grundfos Srbija d.o.o.
Omladinskih brigada 90b
11070 Novi Beograd
Phone: [phone]
Telefax: [phone]
www.rs.grundfos.com

Singapore

GRUNDFOS (Singapore) Pte. Ltd.
25 Jalan Tukang
Singapore 619264
Phone: [phone]
Telefax: [phone]

Slovakia

GRUNDFOS s.r.o.
Prievozská 4D
821 09 BRATISLAVA
Phona: [phone]
sk.grundfos.com

Slovenia

GRUNDFOS LJUBLJANA, d.o.o.
Leskoškova 9e, 1122 Ljubljana
Phone: [phone]
Telefax: [phone]
E-mail: [e-mail]

South Africa

GRUNDFOS (PTY) LTD
Corner Mountjoy and George Allen Roads
Wilbart Ext. 2
Bedfordview 2008
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

Spain

Bombas GRUNDFOS España S.A.
Camino de la Fuentecilla, s/n
E-28110 Algete (Madrid)
Tel.: [phone]
Telefax: [phone]

Sweden

GRUNDFOS AB
Box 333 (Lunnagårdsgatan 6)
431 24 Mölndal
Tel.: [phone]
Telefax: [phone]

Switzerland

GRUNDFOS Pumpen AG
Bruggacherstrasse 10
CH-8117 Fällanden/ZH
Tel.: [phone]
Telefax: [phone]

Taiwan

GRUNDFOS Pumps (Taiwan) Ltd.
7 Floor, 219 Min-Chuan Road
Taichung, Taiwan, R.O.C.
Phone: [phone]
Telefax: [phone]

Thailand

GRUNDFOS (Thailand) Ltd.
92 Chaloem Phrakiat Rama 9 Road,
Dokmai, Pravej, Bangkok 10250
Phone: [phone]
Telefax: [phone]

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: [e-mail]

Ukraine

Бізнес Центр Європа
Столичне шосе, 103
м. Київ, 03131, Україна
Телефон : [phone]
Факс.: [phone]

E-mail: [e-mail]

United Arab Emirates

GRUNDFOS Gulf Distribution
P.O. Box 16768
Jebel Ali Free Zone
Dubai
Phone: [phone]
Telefax: [phone]

United Kingdom

GRUNDFOS Pumps Ltd.
Grovebury Road
Leighton Buzzard/Beds. LU7 4TL
Phone: [phone]
Telefax: [phone]

U.S.A.

GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: [phone]
Telefax: [phone]

Uzbekistan

Grundfos Tashkent, Uzbekistan The
Representative Office of Grundfos
Kazakhstan in Uzbekistan
38a, Oybek street, Tashkent
Телефон: [phone] / 71 150
3291
Факс: [phone]

Addresses Revised 01.07.2016

Grundfos companies

98092353 0716

ECM: 1188108

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