Grundfos ALPHA1 B Installation And Operating Instructions Manual

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ALPHA1

Model B

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Page 2

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions

These installation and operating instructions describe ALPHA1 model B.

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

Sections 6-12 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 Hazard statements

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

The hazard statements are structured in the following way:

1. General information

1.1 Target group

1.2 Hazard statements

1.3 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 Positioning the pump

3.3 Control box positions

3.4 Insulating the pump housing

4. Electrical installation

4.1 Assembling the plug

4.2 Dismantling the plug

5. Starting up the product

5.1 Before startup

5.2 First startup

5.3 Venting the pump

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 operating panel

7.2 Display

7.3 Light fields indicating the pump setting

7.4 Button for selection of pump setting

7.5 Control modes

7.6 Pump performance

8. Fault finding the product

9. Technical data

9.1 Data and operating conditions

9.2 Dimensions

10. Performance curves

10.1 Guide to performance curves

10.2 Curve conditions

10.3 Performance curves, ALPHA1, XX-40 (N)

10.4 Performance curves, ALPHA1, XX-50 (N)

10.5 Performance curves, ALPHA1, XX-60 (N), XX-50/60

10.6 Performance curves, ALPHA1, XX-80 (N)

11. Accessories

11. 1 U nio ns

11.2 Insulating shells

11.3 ALPHA plugs

12. Disposing of the product

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.

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.

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.

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English (GB)

1.3 Notes

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

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 the

voltage and frequency of the installation site. See section

6.4.1 Nameplate.

2.2 Scope of delivery

The box contains the following items:

• ALPHA1 pump

• ALPHA plug

• insulating shells

• two gaskets

• quick guide.

3. Installing the product

3.1 Mechanical installation

3.1.1 Mounting the product

Fig. 1 Mounting the product

The arrows on the pump housing indicate the flow direction through the pump. See fig. 1 (A).

1. Fit the two gaskets when you mount the pump in the pipe. See fig. 1 (B).

2. Install the pump with a horizontal motor shaft. See fig. 1 (C). See also section 3.3 Control box positions.

3. Tighten the fittings.

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.

Tips and advice that make the work easier.

TM 07 1193 111 8

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English (GB)

3.2 Positioning the pump

Fig. 2 Control box positions

Always install the pump with a horizontal motor shaft.

• Pump installed correctly in a vertical pipe. See fig. 2 (A).

• Pump installed correctly in a horizontal pipe. See fig. 2 (B).

• Do not install the pump with a vertical motor shaft. See fig. 2 (C and D).

3.3 Control box positions

3.3.1 Positioning of the control box in heating and domestic

hot-water systems

You can position the control box so that the plug is positioned at 3, 6 and 9 o'clock. See fig. 3.

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

systems

3.3.2 Positioning the control box in air-conditioning and

cold-water systems

Position the control box so that the plug is pointing downwards. See fig. 4.

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

systems

3.3.3 Changing the control box position

Fig. 5 Changing the control box position

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

1. Remove the four screws.

2. Turn the pump head to the desired position.

3. Insert and cross-tighten the screws.

TM06 9089 4317TM06 9090 4317TM06 9091 4317

WARNING

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.

CAUTION

Hot surface

Minor or moderate personal injury

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

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

TM06 9092 4317

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English (GB)

3.4 Insulating the pump housing

Fig. 6 Insulating the pump housing

You can reduce the heat loss from the pump by insulating the pump housing with the insulating shells supplied with the pump. See fig. 6.

4. Electrical installation

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.

TM06 9093 4317

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

WARNING

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.

WARNING

Electric shock

Death or serious personal injury

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

WARNING

Electric shock

Death or serious personal injury

- If national legislation requires a Residual-Current Device (RCD) or equivalent in the electrical installation, or if the pump is connected to an electrical installation where an RCD is used as an additional protection, this must be type A or better, due to the nature of the pulsating DC leakage current. The RCD must be marked with the symbol shown below;

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English (GB)

4.1 Assembling the plug

4.2 Dismantling the plug

Step Action Illustration

Fit the cable gland and plug cover to the cable. Strip the cable conductors as illustrated.

TM05 5538 3812

Connect the cable conductors to the power supply plug.

TM05 5539 3812

Bend the cable with the cable conductors pointing upwards.

TM05 5540 3812

Pull out the conductor guide plate and throw it away.

TM05 5541 3812

Click the plug cover onto the power supply plug.

TM05 5542 3812

Screw the cable gland onto the power supply plug.

TM05 5543 3812

0.5 - 1.5 mm

12 mm

∅5.5 - 10 mm

7 mm

17 mm

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

TM 07 1194 111 8

Step Action Illustration

Loosen the cable gland and remove it from the plug.

TM05 5545 3812

Pull off the plug cover while pressing on both sides.

TM05 5546 3812

Add the conductor guide plate to loosen all three cable conductors at the same time. If the guide plate is missing, then loosen the cable conductors one by one by pressing a screwdriver gently into the terminal clip.

TM05 5547 3812

The plug has now been removed from the power supply plug.

TM05 5548 3812

Step Action Illustration

Page 7

English (GB)

5. Starting up the product

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 section 9. Technical data. For instructions on how to vent the system, see section 5.3 Venting

the pump.

5.2 First startup

After installing the product, see section 3. Installing the product, turn on the power supply. The light in the operating panel shows that the power supply has been switched on. See fig. 7.

The pump is factory set to intermediate proportional-pressure curve, PP2.

Fig. 7 Starting the pump

5.3 Venting the pump

Fig. 8 Venting the pump

The pump is self-venting through the system. 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. 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

6. Product introduction.

TM06 9094 4317

1 x 230 V ± 10 % ∽ 50/60 Hz

0/O

1/On

TM06 9104 4317

The pump must not run dry.

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English (GB)

6. Product introduction

6.1 Product description

Fig. 9 Pumped liquids, warnings and operating conditions

ALPHA1 pumps are a complete range of circulator pumps.

6.1.1 Model type

These installation and operating instructions cover ALPHA1 model B. The model type is stated on the packaging and nameplate. See figs 10 and 11.

Fig. 10 Model type on the packaging

Fig. 11 Model type on the nameplate

6.2 Applications

The 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. The pump is the best choice for the following systems:

• underfloor heating systems

• one-pipe systems

• two-pipe systems. The pump is suitable for the following:

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

• Systems with variable flow-pipe temperature.

TM06 9095 4317TM06 9106 4317

TM06 9103 4317

Page 9

English (GB)

6.3 Pumped liquids

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

/s (1 cSt) at 20 °C. If the 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 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. For more information about the pumped liquids, warnings and

operating conditions, see fig. 9.

6.4 Identification

6.4.1 Nameplate

Fig. 12 Nameplate

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 according to local legislation.

CAUTION

Corrosive substance

Minor or moderate personal injury

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

TM07 0628 1118

Pos. Description

1 Minimum rated current [A] 2 Maximum rated current [A] 3 CE mark and approvals 4 EEI: Energy Efficiency Index 5 Voltage [V] 6 Product number 7 Serial number 8 Pump model

9 Country of origin 10 Frequency [Hz] 11 Da ta ma trix c ode 12 Grundfos address

Production code:

• 1st and 2nd figures: year

• 3rd and 4th figures: week 14 Temperature class 15 Enclosure class 16 Part, according to EEI

Crossed-out wheeled bin according to EN

50419:2006 18 Maximum system pressure [MPa] 19 Maximum input power P1 [W] 20 Minimum input power P1 [W] 21 Product type

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Page 10

English (GB)

6.4.2 Type key

7. Control functions

7.1 Elements on the operating panel

Fig. 13 Operating panel

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. 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 nine performance settings which you can select with the button. See fig. 13 (5).

The pump setting is indicated by nine light fields in the display. See fig. 14.

Fig. 14 Nine light fields

For information about the function of the settings, see section

7.5 Control modes.

7.4 Button for selection of pump setting

Every time you press the button , the pump setting is changed. See fig. 13 (5).

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

indicating the pump setting.

Example ALPHA1 25 -40 N 180

Pump type [ ]: Standard version

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

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

N: Stainless-steel pump housing Port-to-port length [mm]

TM06 9101 4317

Pos. Description

1 Display showing the actual power consumption in watt.

Light fields indicating the pump setting. See section 7.3 Light fields indicating the pump setting.

3 Button for selection of pump setting.

TM06 9100 4317

Button

presses

Active light

fields

Description

Factory setting

Intermediate proportional-pressure curve, PP2

Highest proportional-pressure curve, PP3

Lowest constant-pressure curve, CP1

Intermediate constant-pressure curve, CP2

Highest constant-pressure curve, CP3

Constant curve/constant speed III

Constant curve/constant speed II

Constant curve/constant speed I

Lowest proportional-pressure curve, PP1

POWER

Page 11

English (GB)

7.5 Control modes

7.5.1 Pump setting for two-pipe heating systems

Fig. 15 Selection of pump setting for system type

Recommended and alternative pump settings according to fig.

15:

* See section 10.1 Guide to performance curves.

Proportional-pressure curve, PP1, PP2 or PP3

Proportional-pressure control adjusts the pump performance to the actual heat demand in the system. The pump performance follows the selected performance curve, PP1, PP2 or PP3. See fig. 16 where PP2 has been selected. For further information, see section 10.1 Guide to performance curves.

Fig. 16 Three proportional-pressure curves and settings

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

7.5.2 Pump setting for one-pipe heating systems

Fig. 17 Selection of pump setting for system type

Recommended and alternative pump settings according to fig.

17:

* See section 10.1 Guide to performance curves.

Constant-pressure curve, CP1, CP2 or CP3

The constant-pressure control adjusts the flow rate 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. 18 where CP1 has been selected. For further information, see section 10.1 Guide to

performance curves.

Fig. 18 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.

TM06 9102 4317

Heating system

Pump setting

Recommended Alternative

Two-pipe

system

Proportional-pressure

curve, PP1, PP2 or

PP3*

Constant-pressure

curve, CP1, CP2 or

CP3*

TM07 0086 4117

PP3

PP2

PP1

TM06 9099 4317

Heating

system

Pump setting

Recommended Alternative

One-pipe

system

Constant-pressure

curve, CP1, CP2 or

CP3*

Constant curve/constant

speed, I, II or III*

TM07 0087 4117

CP3

CP2

CP1

Page 12

English (GB)

7.5.3 Pump setting for underfloor heating systems

Fig. 19 Selection of pump setting for system type

Recommended and alternative pump settings according to fig.

19:

* See section 10.1 Guide to performance curves.

Constant-pressure curve, CP1, CP2 or CP3

The constant-pressure control adjusts the flow rate 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. 20 where CP1 has been selected. For further information, see section 10.1 Guide to

performance curves.

Fig. 20 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.

7.5.4 Pump setting for domestic hot-water systems

Fig. 21 Selection of pump setting for system type

Recommended and alternative pump settings according to fig.

21:

* See section 10.1 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, independently of the actual flow rate demand in the system. The pump performance follows the selected performance curve, I, II or III. See fig. 22 where II has been selected. For further information, see section 10.1 Guide to

performance curves.

Fig. 22 Three constant-curve and constant-speed settings

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

7.5.5 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.

TM06 9098 4317

System type

Pump setting

Recommended Alternative

Underfloor

heating

Constant-pressure

curve, CP1, CP2 or

CP3*

Constant curve/constant

speed, I, II or III

TM07 0087 4117

CP3

CP2

CP1

TM05 3068 0912

System type

Pump setting

Recommended Alternative

Domestic hot

water

Constant curve/constant

speed, I, II or III

Constant-pressure

curve, CP1, CP2 or

CP3*

TM05 3068 0912

Page 13

English (GB)

7.6 Pump performance

Relation between pump setting and pump performance. Figure 23 shows the relation between pump setting and pump

performance by means of curves. See also section

10. Performance curves.

Fig. 23 Pump setting in relation to pump performance

TM05 2771 2817

Setting Pump curve Function

PP1

Lowest proportional-pressure curve

The duty point of the pump will move up or down on the lowest proportional-pressure curve, depending on the heat demand. See fig. 23. The head is reduced at falling heat demand and increased at rising heat demand.

PP2

Intermediate proportional-pressure curve

The duty point of the pump will move up or down on the intermediate proportional-pressure curve, depending on the heat demand. See fig. 23. The head is reduced at falling heat demand and increased at rising heat demand.

PP3

Highest proportional-pressure curve

The duty point of the pump will move up or down on the highest proportional-pressure curve, depending on the heat demand. See fig. 23. The head is reduced at falling heat demand and increased at rising heat demand.

CP1

Lowest constant-pressure curve

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. 23. The head is kept constant, irrespective of the heat demand.

CP2

Intermediate constant-pressure curve

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. 23. The head is kept constant, irrespective of the heat demand.

CP3

Highest constant-pressure curve

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. 23. The head is kept constant, irrespective of the heat demand.

III Speed III

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.

23.

You obtain quick venting of the pump by setting the pump to speed III for a short period. See section 5.3 Venting the pump.

II Speed II

The pump runs on a constant curve which means that it runs at a constant speed. In speed II, the pump is set to run on the intermediate curve under all operating conditions. See fig. 23.

I Speed I

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

23.

III

PP3

CP3

CP2

PP1

CP1

PP2

Page 14

English (GB)

8. Fault finding the product

High-torque start

If the shaft is blocked and you cannot start the pump, the display indicates the alarm "E 1 - "- -"", 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.

WARNING

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.

WARNING

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 Operating panel Cause Remedy

1. The pump does not run.

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

b) The current-operated or

voltage-operated circuit breaker has tripped.

Cut in the circuit breaker.

c) The pump is defective. Replace the pump.

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

a) The rotor is blocked.

Remove the impurities.

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

a) Insufficient supply voltage. Make sure that the supply voltage falls

within the specified range.

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

a) Electrical fault.

Replace the pump.

2. Noise in the system. No warning is indicated

on the display.

a) Air in the system. Vent the system.

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

3. Noise in the pump. No warning is indicated

on the display.

a) Air in the pump. Let the pump run. The pump vents itself

over time. See section 5.3 Venting the pump.

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

sure that the air volume in the expansion tank is sufficient, if installed.

4. Insufficient heat. No warning is indicated

on the display.

a) The pump performance is too low. Change the pump setting to increase the

pump performance. See 7.5.5 Changing

from recommended to alternative pump setting.

Page 15

English (GB)

9. Technical data

9.1 Data and operating conditions

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

Supply voltage 1 x 230 V ± 10 %, 50 or 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

Inlet pressure

Liquid temperature Minimum inlet pressure

≤ 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 (electromagnetic compatibility)

EMC Directive (2014/30/EU). Standards used: EN 55014-1:2006/A1:2009/A2:2011 EN 55014-2:2015 EN 61000-3-2:2014 EN 61000-3-3:2013

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 EN 60335-2-51 Surface temperature The maximum surface temperature will not exceed 125 °C. Liquid temperature 2-110 °C Specific EEI values EEI ≤ 0.20

Ambient

temperature

[°C]

Liquid temperature

Min.

[°C]

Max.

[°C]

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

The ALPHA1 pump can, however, run at ambient temperatures higher than the liquid temperature if the plug connection in the pump head is pointing downwards.

Page 16

English (GB)

9.2 Dimensions

Dimensional sketches and table of dimensions.

Fig. 24 ALPHA1 model B

* Only available in UK

Not all pump types are available in all countries.

TM07 0102 4217

Pump type

Dimensions

L1 B1 B2 B3 B4 H1 H2 H3 G

ALPHA1 15-40 130 54 54 44 44 36 104 47 G1 ALPHA1 15-50 130 54 54 44 44 36 104 47 G1 ALPHA1 15-50 N* 130 54 54 44 44 37 104 47 G1 1/2 ALPHA1 15-60 130 54 54 44 44 36 104 47 G1 ALPHA1 15-50/60* 130 54 54 44 44 36 104 47 G1 1/2 ALPHA1 15-80 130 54 54 44 44 36 104 47 G1 ALPHA1 25-40 130 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-40 N 130 54 54 44 44 37 104 47 G1 1/2 ALPHA1 25-40 180 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-40 N 180 54 54 44 44 37 104 47 G1 1/2 ALPHA1 25-50 130 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-50 N 130 54 54 44 44 37 104 47 G1 1/2 ALPHA1 25-50 180 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-50 N 180 54 54 44 44 37 104 47 G1 1/2 ALPHA1 25-60 130 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-60 N 130 54 54 44 44 37 104 47 G1 1/2 ALPHA1 25-60 180 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-60 N 180 54 54 44 44 37 104 47 G1 1/2 ALPHA1 25-80 130 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-80 N 130 54 54 44 44 37 104 47 G1 1/2 ALPHA1 25-80 180 54 54 44 44 36 104 47 G1 1/2 ALPHA1 25-80 N 180 54 54 44 44 37 104 47 G1 1/2 ALPHA1 32-40 180 54 54 44 44 36 104 47 G2 ALPHA1 32-50 180 54 54 44 44 36 104 47 G2 ALPHA1 32-60 180 54 54 44 44 36 104 47 G2 ALPHA1 32-80 180 54 54 44 44 36 104 47 G2

Page 17

English (GB)

10. Performance curves

10.1 Guide to performance curves

Each pump setting has its own performance curve. 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. 25.

Fig. 25 Performance curves in relation to pump setting

For further information about pump settings, see section

7. Control functions

10.2 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 983.2 kg/m

and a liquid

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).

• Curves are obtained according to EN 16297.

TM07 0037 3917

III

PP3

CP3

CP2

PP1

CP1

PP2

Setting Pump curve

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 III Constant curve or constant speed III II Constant curve or constant speed II I Constant curve or constant speed I

Page 18

English (GB)

10.3 Performance curves, ALPHA1, XX-40 (N)

Fig. 26 ALPHA1, XX-40

TM07 0056 4017

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]

[m]

III

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]

[W]

III

PP1

CP1

PP2

CP2

PP3

CP3

Setting

[W]

1/1

[A]

Min. 30.04

Max. 18 0.18

Page 19

English (GB)

10.4 Performance curves, ALPHA1, XX-50 (N)

Fig. 27 ALPHA1, XX-50

TM07 0057 4017

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]

[m]

III

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]

[W]

III

PP1

CP1

PP3

CP3

CP2

PP2

Setting

[W]

1/1

[A]

Min. 30.04

Max. 26 0.24

Page 20

English (GB)

10.5 Performance curves, ALPHA1, XX-60 (N), XX-50/60

Fig. 28 ALPHA1, XX-60, XX-50/60

TM07 0058 4017

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]

III

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]

[W]

III

[m]

PP1

CP1

CP3

CP2

PP2

PP3

Setting

[W]

1/1

[A]

Min. 30.04

Max. 34 0.32

Page 21

English (GB)

10.6 Performance curves, ALPHA1, XX-80 (N)

Fig. 29 ALPHA1, XX-80

TM07 0057 4017

PP1

CP1

PP2

CP2

PP3

CP3

[m]

[W]

Q [m³/h]

0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6

Setting

[W]

1/1

[A]

Min. 30.04

Max. 50 0.44

Page 22

English (GB)

11. Accessories

11.1 Unions

Note: The product numbers are always for one complete set, incl. gaskets.

The product numbers for the very standard sizes are printed in bold.

When ordering for UK 15-xx versions, use product numbers for 25-xx (G 1 1/2).

G-threads have a cylindrical form in accordance with the EN ISO 228-1 standard and are not sealing the thread; it requires a flat gasket. You can only screw male G-threads (cylindrical) into female G-threads. The G-threads are standard thread on the pump housing.

R-threads are tapered external threads in accordance with the EN 10226-2 standard.

Rc- or Rp-threads are internal threads with either tapered or cylindrical (parallel) threads. You can screw male R-threads (conical) into female Rc- or Rp-threads. See fig. 30.

Fig. 30 Examples of thread types and combinations

Product numbers, unions

Union nut with internal

threads

Union nut with

external threads

Ball valve with internal

threads

Ball valve with

compression

fitting

Union nut with soldering fitting

ALPHA1

Connection

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

25-xx

G 1 1/2

529921 529922 529821 529925 529924

25-xx N 529971 529972 519805 519806 519807 519808 519809 529977 529978 529979

32-xx

G 2

509921 509922

32-xx N 509971 529995

TM07 0321 4817

Rc Rp R

Page 23

English (GB)

11.2 Insulating shells

The pump is supplied with two insulating shells. 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. 31.

Fig. 31 Insulating shells

11.3 ALPHA plugs

* 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.

12. Disposing of the product

This product or parts of it must be disposed of in an environmentally sound way:

1. Use the public or private waste collection service.

2. If this is not possible, contact the nearest Grundfos company

or service workshop.

The crossed-out wheelie bin symbol on a product means that it must be disposed of separately from household waste. When a product marked with this symbol reaches its end of life, take it to a collection

point designated by the local waste disposal authorities. The separate collection and recycling of such products will help protect the environment and human health.

See also end-of-life information at www.grundfos.com/product-recycling.

Pump type Product number

ALPHA1 XX-XX 130 98091786 ALPHA1 XX-XX 180 98091787

TM06 9093 4317TM06 5823 0216

Pos. Description

Product number

ALPHA straight plug, standard plug connector, complete

98284561

ALPHA angle plug, standard angle plug connection, complete

98610291

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

96884669

ALPHA plug, 90 ° bend to the left, including 1 m cable and integrated NTC protection resistor

97844632

123

WARNING

Magnetic field

Death or serious personal injury

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

Page 24

Page 25

Grundfos companies

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 o x 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 3 5 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 Грун дф 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 Телеф он : (+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 9300 Loiret Blvd. Lenexa, Kansas 66219 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

Page 26

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ECM: 1250580

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www.grundfos.com

Grundfos ALPHA1 B Installation And Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual