Grundfos PF Series, PF 1-30, NS Series, NS 5-33, NS 4-23 Installation And Operating Instructions Manual

NS, PF

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

NS, PF

Table of contents

English (GB)

Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Dansk (DK)

Monterings- og driftsinstruktion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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English (GB) Installation and operating instructions

Original installation and operating instructions

These installation and operating instructions
describe Grundfos NS and PF.

Sections 1-3 give the information necessary to be
able to unpack, install and start up the product in a
safe way.

Sections 4-9 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

2. Installing the product

2. Installing the product

2.1 Pump location

2.2 Mechanical installation

2.3 Electrical connection

3. Starting up the product

3.1 Priming

4. Handling and storing the product

4.1 Handling the product

4.2 Storing the product

5. Product introduction

5.1 Product description

5.3 Applications

6. Maintaining the product

7. Fault finding

8. Technical data

8.1 Operating conditions

8.2 Mechanical data

8.3 Electrical data

9. Disposing of the product

Read this document 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.

Make sure that the system in which the
pump is incorporated is designed for the
maximum pump pressure.

This pump has been evaluated for use with
water only.

1. General information

1.1 Target group

These installation and operating instructions are

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intended for professional installers.

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1.2 Hazard statements

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The symbols and hazard statements below may

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appear in Grundfos installation and operating

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instructions, safety instructions and service

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instructions.

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The hazard statements are structured in the

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following way:

DANGER

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

WARNING

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

CAUTION

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

SIGNAL WORD

Description of hazard

Consequence of ignoring the warning.

- Action to avoid the hazard.

English (GB)

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1.3 Notes

English (GB)

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

Observe these instructions for explosion­proof 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.

2. Installing the product

Observe local regulations concerning
limits for manual lifting or handling.

CAUTION

Crushing of feet

Minor or moderate personal injury

- Use safety shoes when handling the
pump.

2.1 Pump location

Install the pump in a dry well-ventilated location.
Protect the pump from rain, frost and direct sunlight.
We recommend that you place the pump as close as

possible to the liquid to be pumped.

2.2 Mechanical installation

2.2.1 Foundation

Fasten the pump to a solid horizontal foundation by
means of screws through the holes in the base plate.

NS pumps can be installed in horizontal or vertical
position. If the pump is installed in vertical position,
the motor must be above the pump.

PF pumps must only be installed in horizontal
position.

2.2.2 Pipework

Make sure that the pump is not stressed by the
pipework.

Fit rigid pipes with pipe hangers.
Use sealing tape on the inlet and outlet ports of the

pump.

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2.3 Electrical connection

DANGER

Electric shock

Death or serious personal injury

- Before starting any work on the product,
make sure that the power supply has
been switched off and that it cannot be
accidentally switched on.

DANGER

Electric shock

Death or serious personal injury

- The protective earth of the socket outlet
must be connected to the protective
earth of the pump. The plug must
therefore have the same PE connection
system as that of the socket outlet. If
not, use a suitable adapter.

We recommend that you fit the permanent
installation with a residual-current circuit
breaker, RCCB, with a tripping current less
than 30 mA.

DANGER

Electric shock

Death or serious personal injury

- If the pump is used for cleaning or other
maintenance of swimming pools,
garden ponds or similar places, make
sure that the pump is supplied through a
residual-current circuit breaker, RCCB,
with a tripping current of 30 mA.

DANGER

Electric shock

Death or serious personal injury

- Power supply cables without a plug
must be connected to a supply
disconnecting device incorporated in
the fixed wiring according to the local
wiring rules.

DANGER

Electric shock

Death or serious personal injury

- The pump must be earthed.

2.3.1 Wiring diagram

Red

Blue

Black

NL

Capacitor

Red

Blue

Black

Capacitor

White

Red

W2

W1

V2

U1

Blue

Blue

Capacitor

Brown

Ground

Motor protection

Motor

Line

White

Red

Motor

Blue

Blue

Power supply

Earth

Motor protection

Capacitor

Brown

Wiring diagram A

Fig. 1 Wiring diagram A for single-phase pumps

Wiring diagram B

English (GB)

TM06 4453 2315

Fig. 2 Wiring diagram B for single-phase pumps

TM06 4451 2315

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Wiring diagram C

LINE 230 V - 220-277 V

W2

U2

V2

U1

V1

W1

White

Red

Blue

Red
Blue
White

3 230/400

3 ~ 220-277/380-480

MOTOR

LINE 400 V - 380-480 V

W2

U2

V2

U1

V1

W1

White

Red

Blue

Red
Blue
White

3 230/400

3 ~ 220-277/380-480

MOTOR

Blue
Red
White

Blue

Red

White

Blue
Red
White

Blue

Red

White

Three-phase

230/400

Three-phase

220-277 / 380-480

Motor

Three-phase

230/400

Three-phase

220-277 / 380-480

Motor

Voltage
230 V - 220-277 V

Voltage
400 V - 380-480 V

English (GB)

Fig. 3 Wiring diagram C for three-phase

Pump

PF 1-30

PF 2-50

NS 4-23

NS 5-33

NS 13-18

NS 3-40

NS 5-50

NS 5-60

NS 6-30

NS 6-40

NS 30-18

NS 30-18

NS 30-36

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pumps

Voltage

[V]

220-240 A

220-240 B

3 x 400 CNS 30-30

Wiring

diagram

3. Starting up the product

WARNING

Flammable material

Death or serious personal injury

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

DANGER

Electric shock

Death or serious personal injury

- Do not use the pump in swimming
pools, garden ponds or similar places if
there are people in the water.

CAUTION

Hot surface

Minor or moderate personal injury

- Do not run pump continuously with a
closed inlet or outlet valve.

CAUTION

Hot or cold liquid

Minor or moderate personal injury

- Make sure that the escaping hot or cold
liquid does not cause injury to persons
or damage to the equipment.

WARNING

Corrosive substance

Death or serious personal injury

TM06 7750 3916

- Do not use the pump for aggressive
liquids.

CAUTION

Hot surface

Minor or moderate personal injury

- Use protective gloves if the liquid or
ambient temperature is higher than
40 °C.

CAUTION

Impurities in water

Minor or moderate personal injury

- Flush the system with clean water to
remove all impurities before you start
the pump.

3.1 Priming

1. Remove the priming plug. Use a flat-blade
screwdriver if the priming plug is tight.

2. Fill the pump housing with water.

3. Fit the priming plug and screw it tight by hand
only.

Always tighten plastic plugs by hand to
avoid damage to the threads.

Fig. 4 Priming the NS pump

Fig. 5 Priming the PF pump

4. Handling and storing the product

4.1 Handling the product

Use lifting equipment when handling the
product.

Do not drop or shake the product.

4.2 Storing the product

Store the product indoors in a dry and dust-free
environment. Protect the product from vibrations.

Storage temperature: -10 to +40 °C.

5. Product introduction

5.1 Product description

Grundfos NS pumps are centrifugal pumps designed

TM06 7290 3716TM06 7291 3716

for lifting water in domestic, industrial and
agricultural installations.

The pumps come in two versions:

• single-impeller pumps

• twin-impeller pumps.
Grundfos PF pumps are compact peripheral

centrifugal pumps that can generate high heads.

English (GB)

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5.2 Product identification

DK - 8850 Bjerringbro Denmark

Type: NS x-xx No: 99xxxxxx P5 17 08

U: 1x230 V~ I1/1: 7 A 60Hz P1: 1.5 kW

31.5 μF / 450 V~ Class:F IP:44 P2: 1.5 HP

Q: 2.4-9.6 m /h

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H: 36-22.5 m Hmin: 22.5 m

n: 3400 min

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Serial nr.00001 Hmax: 38 m

pmax: 0.6/6 Mpa/bar TliqMax: 60°C TambMax: 55°C

Made in Italy by Grundfos

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English (GB)

5.2.1 Nameplate

1. Pump nameplate explanation

Pos. Description

1 Type designation

2 Supply voltage

3 Capacitor data

4 Nominal flow range

5 Speed

6 Maximum system pressure

7 Approval markings

8 Product number

9 Full load current an frequency

10 Motor insulation class and enclosure class

11 Nominal head

12 Serial number

13 Maximum liquid temperature

14 Production date [year/week]

15 Motor power input

16 Pump power output

17 Minimum head

18 Maximum head

19 Maximum ambient temperature

5.3 Applications

Application

Domestic applications ●
Industrial applications ●
Agricultural applications ●

Light industrial
applications, such as
feeding pressurised boilers
(anticondensation)

Light gardening
applications

TM06 8363 0816

Water supply ●

Draining and filling of
cisterns

Grundfos NSGrundfos

6. Maintaining the product

In normal operation, the pump does not require any
specific maintenance.

DANGER

Electric shock

Death or serious personal injury

- If the power supply cable is damaged, it
must be replaced by the manufacturer,
his service agent or similarly qualified
persons in order to avoid hazard.

PF

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