Grundfos SL1 Series Installation instructions

SL1, SLV

1.1 - 11 kW, 50/60 Hz DIN

Safety instructions

GRUNDFOS INSTRUCTIONS

Installation and operating instructions

in other languages for 50/60 Hz

net.grundfos.com/qr/i/96771279

English (GB)

English (GB) Safety instructions and other important information

Original safety instructions

These safety instructions give a quick overview of

the safety precautions to be taken in connection with

any work on this product.

Observe these safety instructions during handling,

installation, operation, maintenance, service and

repair of this product.

These safety instructions are a supplementary

document, and all safety instructions will appear

again in the relevant sections of the installation and

operating instructions.

Keep these safety instructions at the installation site

for future reference.

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.

English (GB)

Product introduction

This booklet includes instructions for installation,

operation and maintenance of Grundfos SL1 and

SLV submersible sewage and wastewater pumps

with motors of 1.1 to 11 kW. Grundfos SL1 and SLV

sewage and wastewater pumps are designed for

pumping domestic, municipal and industrial sewage

and wastewater.

Two types of pumps are available:

• SL1 sewage pumps with S-tube impeller

• SLV sewage pumps with SuperVortex free-flow

impeller.

The pumps can be installed on an auto-coupling

system or stand freely on the bottom of a tank.

Grundfos SL1 and SLV pumps are designed with

S-tube or SuperVortex impellers to ensure reliable

and optimum operation.

The booklet also includes specific instructions for the

explosion-proof pumps.

Fig. 1 SL1 pump

Pumped liquids and intended use

SL1 and SLV pumps are designed for pumping these

liquids:

• large quantities of drainage and surface water

• domestic wastewater with discharge from toilets

• wastewater with a high content of fibres

(SuperVortex impeller)

• municipal and commercial sewage and

wastewater.

Operating conditions

SL1 and SLV pumps are suitable for the following

operating situations:

•S1 operation (continuous operation), the pump

must always be covered by the pumped liquid to

the top of the motor.

•S3 operation (intermittent operation), the pump

must always be covered by the pumped liquid up

to the top of the cable entry.

pH values

SL1 and SLV pumps in permanent installations can

be used for pumping liquids with the following pH

values:

1) For fluctuating pH values, the range is pH 4 to

14.

Liquid temperature

0-40 °C.

TM04 2648 2808

Pos. Description

1 Lifting bracket

2 Nameplate

3Oil screws

4 Outlet flange

5 Cable plug

6Clamp

7 Pump housing

Pump

type Material

variant Material pH value

SL1/SLV Standard Cast-iron

impeller and

pump housing 6.5-141)

SLV Q

Stainless-steel

impeller and

cast-iron pump

housing

6-141)

English (GB)

Ambient temperature

-20 to +40 °C

Density and viscosity of pumped liquid

When pumping liquids with a density and/or a

kinematic viscosity higher than that of water, use

motors with correspondingly higher outputs.

Identification

Nameplate

The nameplate states the operating data and

approvals applying to the pump. The nameplate is

fitted to the side of the motor housing close to the

cable entry.

Fix the extra nameplate supplied with the pump to

the cable end in the control cabinet.

Fig. 2 Nameplate

Explosion-proof pumps must never pump

liquids of a temperature higher than +40

°C.

For explosion-proof pumps, the ambient

temperature on the installation site must

be in the range from -20 °C to +40 °C.

For explosion-proof pumps with WIO

sensor, the ambient temperature on the

installation site must be in the range from

0-40 °C.

TM07 5414 3919

Pos. Description

1Approvals

2 Explosion protection certificate No.

3 Ex description

4 Type designation

5 Model number

6 Production code (year and week)

7 Enclosure class to IEC

8 Maximum installation depth

9 Maximum head

10 Maximum flow rate

11 Number of phases

12 Maximum liquid temperature

13 Rated input power

14 Shaft power

15 Rated speed

16 Power factor

17 Rated voltage, D

18 Rated current, D

19 Rated voltage, Y

20 Rated current, Y

21 Frequency

22 Insulation class

23 Construction Products Regulation standard

24 Weight without cable

25 Country of production

Type: SLV.80.80.110.EX.2.51D

Model: 9687208500000001

P.c. 0845 IP68

44.9 90

12.5 11.0

2950 0.89

0197

180

22.4-20.8

380-415

3 ~

20 m

Hmax:

Motor:

P1:

Qmax:

Tmax.:

min

mmh/

P2:

-1

Hz Insul.class:

Weight:EN 12050-1

Made in Tatabanya, Hungary

98808079

96771279

910

13 14

CE0344 II2G

KEMA 08ATEX 0125X

Ex db h llB T4,T3 Gb

&RVĳ

DK-8850 Bjerringbro, Denmark

English (GB)

Type key

The pump can be identified by the type designation

stated on the pump nameplate. Example:

SLV.80.80.40.A.Ex.4.50.0D.Q

* Maximum frequency in case of frequency

converter operation

Code Designation Explanation

SL Pump type Grundfos wastewater

pump

1Impeller type S-tube impeller

V SuperVortex impeller

Free spherical

passage [mm] Maximum solids size

100

Pump outlet

[mm] Nominal diameter of

pump outlet

100

150

40 Power [kW] Output power P2/10

Blank Sensor version Standard version

A Sensor version

Blank Pump version

Non-explosion-proof

version

Ex Explosion-proof version

2Number of

poles

2-pole

4 4-pole

60 Frequency [Hz]* 50 Hz

60 Hz

Voltage and

starting method

3 x 400-415 V,

direct-on-line

connection

0D 3 x 380-415 V,

direct-on-line

connection

1D 3 x 380-415 V,

star-delta connection

0E 3 x 220-240 V,

direct-on-line

connection

1E 3 x 220-240 V,

star-delta connection

0F 3 x 220-277 V,

star-delta connection

0G 3 x 380-480 V,

star-delta connection

1F 3 x 220-277 V, delta /

380-480 V star

connection

1G 3 x 380-480 V,

star-delta connection

Blank

Generation

1st generation

A 2nd generation

B 3rd generation

C 4th generation

Blank

Pump materials

Cast-iron impeller,

pump housing and

motor housing

QStainless-steel impeller,

cast-iron pump housing

and motor housing

Blank Customisation Pump in standard range

Z Custom-built pump

Code Designation Explanation

English (GB)

Approvals

SL1 and SLV pumps have been tested by Dekra /

KEMA. The explosion-proof version hold two

examination certificates:

• ATEX(EU): KEMA08ATEX0125X

• IECEx: IECEx KEM08.0039X

Both certificates have been issued by Dekra.

Approval standards

ATEX:

IECEx:

IEC 60079-0:2017, IEC 60079-1:2014, IEC

60079-7:2017, IEC 60079-18:2017

The standard variants are approved by TÜV LGA

(notified body under the Construction Products

Directive) according to EN 12050-1 or EN 12050-2

as specified on the pump nameplate.

Australia and New Zealand

Explosion-proof variants for Australia and New

Zealand are approved Ex db IIB T3/T4 Gb (without

WIO sensor) or Ex db eb mb IIB T3/T4 Gb (with WIO

sensor).

Transporting the product

Handling and lifting the product

Fig. 3 Lifting bracket

Direct-drive pump without

sensor: CE 0344 II 2 G Ex

db h IIB T4 Gb

Direct-drive pump with

sensor: CE 0344 II 2 G Ex

db eb h mb IIB T4 Gb

Pump driven by frequency

converter without sensor: CE 0344 II 2 G Ex

db h IIB T3 Gb

Pump driven by frequency

converter with sensor: CE 0344 II 2 G Ex

db eb h mb IIB T3 Gb

Pump without sensor: Ex db IIB T3, T4 Gb

Pump with sensor: Ex db eb mb IIB T3,

T4 Gb

CAUTION

Crushing hazard

Minor or moderate

personal injury

- Make sure the pump

cannot roll or fall over.

WARNING

Crushing hazard

Death or serious

personal injury

- Always lift the pump by

its lifting bracket or by

a forklift truck if the

pump is fixed on a

pallet. Never lift the

pump by the power

cable, hose or pipe.

TM06 3920 1215

Lifting bracket

English (GB)

Safety

Potentially explosive environments

Pump installation in

tanks must be carried

out by specially trained

persons.

Work in or near tanks

must be carried out

according to local

regulations.

Persons must not work in the installation

area when the atmosphere is potentially

explosive.

WARNING

Crushing hazard

Death or serious

personal injury

- Make sure that the

lifting bracket is

tightened before lifting

the pump.

Carelessness during

lifting or transport may

cause injury to persons

or damage to the

pump.

WARNING

Electric shock

Death or serious

personal injury

- Connect the pump to

an external main

switch which ensures

all-pole disconnection

with a contact

separation according

to EN 60204-1. It must

be possible to lock the

main switch in position

0. The electrical

connection must

comply with local

regulations.

SL1 and SLV pumps must under no

circumstances be used to pump explosive,

flammable or combustible liquids.

The classification of the installation site

must be approved by the local fire-fighting

authorities.

English (GB)

Mechanical installation

Special conditions for safe use of SL1 and

SLV explosion-proof pumps:

1. Make sure the moisture switch and

thermal switches are connected in the

same circuit but have separate alarm

outputs (motor stop) in case of high

humidity or high temperature in the

motor.

2. Bolts used for replacement must be

class A2-70 or better according to

EN/ISO 3506-1.

3. Contact the manufacturer for

information on the dimensions of the

flameproof joints.

4. The level of pumped liquid must be

controlled by two level switches

connected to the motor control circuit.

The minimum level depends on the

installation type and is specified in

these installation and operating

instructions.

5. Make sure the permanently attached

cable is suitably mechanically

protected and terminated in a suitable

terminal board placed outside the

potentially explosive area.

6. The sewage pumps have an ambient

temperature range of -20 °C to +40 °C

and a maximum process temperature

of +40 °C. The minimum ambient

temperature for a pump with a

water-in-oil sensor is 0 °C.

7. The thermal protection in the stator

windings has a nominal switch

temperature of 150 °C and must

guarantee the disconnection of the

power supply. The power supply must

be reset manually.

8. The control unit must protect the WIO

sensor against short circuit current of

the supply to which it is connected. The

maximum current from the control unit

must be limited to 350 mA.

9. In case of frequency converter usage,

the maximum surface temperature of

the pump can be 200 °C.

10. The WIO sensor is intended for use

only with a galvanically isolated circuit.

11. The lock nut of the cable connector

must only be replaced with an identical

one.

12. The WIO sensor must be connected

according to these installation

instructions.

EX pumps are equipped with a WIO

sensor optionally.

Compliance with the standard EN

60079-14 is a customer responsibility.

WARNING

Body injury

Death or serious

personal injury

- Pump installation in

tanks must be carried

out by specially trained

persons. Work in or

near tanks must be

carried out according

to local regulations.

Persons must not work in the installation

area when the atmosphere is potentially

explosive.

WARNING

Crushing hazard

Death or serious

personal injury

- During installation,

always support the

pump by lifting chains

or place it in horizontal

position to secure

stability.

English (GB)

WARNING

Electric shock

Death or serious

personal injury

- Before beginning the

installation, switch off

the power supply and

lock the main switch in

position 0.

- Make sure that the

power supply cannot

be switched on

unintentionally.

- Any external voltage

connected to the pump

must be switched off

before working on the

pump.

WARNING

Crushing of hands

Death or serious

personal injury

- Do not put your hands

or any tool into the

pump inlet or outlet

port after the pump is

connected to the power

supply, unless the

pump has been

switched off by

removing the fuses or

switching off the main

switch. Make sure that

the power supply

cannot be switched on

unintentionally. Make

sure that all the

rotating parts have

stopped moving.

CAUTION

Crushing hazard

Minor or moderate

personal injury

- Use the lifting bracket

only for lifting the

pump. Do not use it to

hold the pump in

operation.

English (GB)

Installation types

Fig. 4 Submerged installation on auto coupling

SL1 and SLV pumps are designed for two installation

types:

• submerged installation on auto coupling

• free-standing submerged installation on ring

stand.

Fig. 5 Free-standing submerged installation on

ring stand

Torques for inlet and outlet flanges

Grade 4.6 (5) galvanised steel screws and nuts

TM04 2650 2808

Before beginning installation procedures,

make sure that the atmosphere in the tank

is not potentially explosive.

Inspect the oil level and condition every

3000 operating hours or at least once a

year.

When the pump is new or after

replacement of the shaft seal, check the oil

level and water content after one week of

operation.

TM04 2651 2808

DN DC

[mm] Screws

Specified torques

rounded off by ± 5

[Nm]

Slightly

oiled Well

lubricated

DN 65 145 4 x M16 70 60

DN 80 160 8 x M16 70 60

DN 100 180 8 x M16 70 60

DN 150 240 8 x M20 140 120

DN DC

[mm] Screws

Specified torques

rounded off by ± 5

[Nm]

Slightly

oiled Well

lubricated

DN 65 145 4 x M16 - 60

DN 80 160 8 x M16 - 60

DN 100 180 8 x M16 - 60

DN 150 240 8 x M20 - 120

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