Grundfos ALPHA1 B Bedienungsanleitung

ALPHA1

Model B

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Table of contents

ALPHA1

English (GB)

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

Deutsch (DE)

Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Français (FR)

Notice d'installation et de fonctionnement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Italiano (IT)

Istruzioni di installazione e funzionamento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

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 4

1.1 Target group 4

1.2 Hazard statements 4

1.3 Notes 5

2. Receiving the product 5

2.1 Inspecting the product 5

2.2 Scope of delivery 5

3. Installing the product 5

3.1 Mechanical installation 5

3.2 Control box positions 6

3.3 Insulating the pump housing 7

4. Electrical installation 7

4.1 Assembling the plug 8

4.2 Dismantling the plug 9

5. Starting up the product 9

5.1 Before startup 9

5.2 First startup 9

5.3 Venting the pump 10

5.4 Venting the heating system 10

6. Product introduction 11

6.1 Product description 11

6.2 Applications 11

6.3 Pumped liquids 12

6.4 Identification 12

7. Control functions 13

7.1 Elements on the operating panel 13

7.2 Display 13

7.3 Light fields indicating the pump setting 13

7.4 Button for selection of pump setting 13

7.5 Control modes 14

7.6 Pump performance 16

8. Fault finding the product 17

9. Technical data 18

9.1 Data and operating conditions 18

9.2 Dimensions 19

10. Performance curves 20

10.1 Guide to performance curves 20

10.2 Curve conditions 20

10.3 Performance curves, ALPHA1, XX-40 (N) 21

10.4 Performance curves, ALPHA1, XX-50 (N) 22

10.5 Performance curves, ALPHA1, XX-60 (N) 23

10.6 Performance curves, ALPHA1, XX-80 (N) 24

11. Accessories 25

11.1 Unions 25

11.2 Insulating shells 26

11.3 ALPHA plugs 26

12. Disposing of the product 26

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.

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

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, pos. 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.

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.

TM05 3057 0612

English (GB)

3.2 Control box positions

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. 3.

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

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.

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

systems

3.2.3 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

CAUTION

Hot surface

Minor or moderate personal injury

- Position the pump so that persons cannot

accidentally come into contact with hot surfaces.

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.

TM06 9092 4317

English (GB)

3.3 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.

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.

DANGER

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.

DANGER

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

electric 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;

English (GB)

4.1 Assembling 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

0.5 - 1.5 mm2

12 mm

∅5.5 - 10 mm

7 mm

17 mm

Screw the cable

gland onto the

power supply plug.

TM05 5543 3812

Insert the power

supply plug into

the male plug in

the pump control

box.

TM05 3059 0912

Step Action Illustration

English (GB)

4.2 Dismantling the plug

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 sections 5.3 Venting

the pump and 5.4 Venting the heating system.

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

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

TM06 9094 4317

1 x 230 V± 10 %

∽50/60 Hz

0/O

1/On

English (GB)

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 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

5.4 Venting the heating system.

5.4 Venting the heating system

Fig. 9 Venting of the heating system

Vent the heating system via a vent valve installed above the

pump (1).

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

follows:

1. Open the 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.

TM06 9104 4317

The pump must not run dry.

10 Min.

POWER

TM06 9105 4317

The pump must not run dry.

10 Min.

POWER

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