GRUNDFOS INSTRUCTIONSSCALAInstallation and operating instructions

English (GB)English (GB) Installation and operating instructions
Original installation and operating instructions

Warning

These installation and operating instructions describe Grundfos
SCALA domestic water supply pumps.

Prior to installation, read this document and the quick
guide. Installation and operation must comply withlocal regulations and accepted codes of goodpractice.

Sections 1-4 give the information necessary yo be able tounpack, install and start up the product in a safe way.
Sections 5-14 give important information about the product, as
well as information on service, fault finding and disposal of the
product.

Warning
This product can be used by children of eight years
and up and persons with reduced physical, sensory
or mental capabilities or lack of experience andknowledge if they are under supervision or havebeen instructed in the safe use of the product andunderstand the hazards involved.

CONTENTS
Page
1.
1.1
1.2

General information
Target group
Symbols used in this document

2
2
2

2.
2.1
2.2

Receiving the productInspecting the productScope of delivery

3
3
3

3.
3.1
3.2
3.3
3.4
3.5
3.6
3.7

Installing the product
Location
System sizing
Mechanical installation
Foundation
Installation examples
Suction pipe length
Electrical connection

3
3
3
3
3
4
5
5

4.
4.1
4.2
4.3

Starting up the productPriming the pump
Starting the pumpShaft seal run-in

5
5
5
6

1. General information

5.
5.1
5.2
5.3

Storing and handling the productHandling
Storing
Winterizing

6
6
6
6

These installation and operating instructions are intended for
professional installers.

6.
6.1
6.2
6.3
6.4

Product introduction
Product description
Application
Pumped liquids
Identification

6
6
6
6
7

7.
7.1

Control functions
Menu overview, SCALA2

8
8

8.
8.1
8.2
8.3
8.4

Operating the controller
Setting the outlet pressure
Locking and unlocking the operating panel
Expert settings, SCALA2
Resetting to factory settings

9
9
9
9
9

9.
9.1
9.2
9.3

Starting up the product after shutdown or standstill 10
Deblocking the pump
10
Controller settings
10
Priming
10

10.
10.1
10.2
10.3

Servicing the product
Maintaining the productCustomer service information
Service kits

10
10
11
11

11.

Taking out of operation

11

12.
12.1
12.2
12.3

Fault finding the product
Grundfos Eye operating indications
Fault resetting
Fault finding chart

11
11
11
12

13.
13.1
13.2
13.3

Technical data
Operating conditions
Mechanical data
Electrical data

14
14
14
14

14.

Disposal

142Children must not play with the product.
Cleaning and maintenance of the product must not
be made by children without supervision.
CautionThis pump has been evaluated for use with water
only.
Warning
Risk of electric shock.
This pump has a grounding conductor andgrounding-type attachment plug. To reduce the riskof electric shock, be certain that the pump isconnected only to a properly grounded,grounding-type receptacle.

1.1 Target group

1.2 Symbols used in this document
Warning
If these safety instructions are not observed, it may
result in personal injury.
Warning
If these instructions are not observed, it may lead toelectric shock with consequent risk of serious
personal injury or death.
CautionIf these safety instructions are not observed, it may
result in malfunction or damage to the equipment.

Note

Notes or instructions that make the job easier andensure safe operation.

3.4 Foundation

2.1 Inspecting the product

Fasten the pump to a solid horizontal foundation by means ofscrews through the holes in the base plate. See figures 2 and 1.

English (GB)

2. Receiving 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.

TM06 5729 5315

2.2 Scope of delivery
The box contains the following items:•

1 Grundfos SCALA pump•

1 quick guide•1 safety instructions booklet.
Fig. 1

Horizontal foundation

3. Installing the product3.1 Location

If the unlikely event of an internal leakage occurs, theliquid will be drained through the bottom of the pump
and/or through the pump cover instead of causing
damage to the pump.
Install the pump in such a way that no undesirable
collateral damage can arise.

3.1.1 Minimum space
The pump requires a minimum space of 430 x 215 x 325 mm (17x 8.5 x 12.8 inches).
Even though the pump does not require much space, we
recommend that you leave enough space for service andmaintenance access.
3.1.2 Installing the product in frosty environment
Protect the pump from freezing if it is to be installed outdoors
where frost may occur.

3.2 System sizing
Warning
The system in which the pump is incorporated must
be designed for the maximum pump pressure.

A
Fig. 2

TM06 3809 1015

CautionC

We recommend that you install the pump near a drain or in a drip
tray connected to a drain in order to lead away possible
condensation from cold surfaces.

B

The pump can be installed indoors or outdoors, but it must not be
exposed to frost.

Base plateA

130 mm

B

181 mm

5.12 inches
7.13 inchesC

144 mm

5.67 inches

3.4.1 Pipework
Make sure that the pump is not stressed by the pipework.
The pumps are equipped with flexible connections, ± 5 °, tofacilitate the connection of inlet and outlet pipes. The inlet andoutlet ports can be loosened by turning the union nuts by hand.
Caution

Always loosen and tighten inlet and outlet union nutsby hand.

1. Carefully screw the inlet and outlet connections on to the inlet
and outlet ports using a pipe wrench or similar tool.
2. Then fit the connections to the inlet and outlet holding theconnections with one hand, and tightening the union nuts withthe other hand. See fig. 3.

The pump is factory-set to three bar outlet pressure which can be
adjusted according to the system in which it is incorporated.
The tank precharge pressure is 1.25 bar (18 psi).
In case of suction lift of more than six metres, the pipe resistanceon the outlet side must be at least two metres water column or 3
PSI at any given flow in order to obtain optimum operation.

3.3 Mechanical installation
TM06 4318 1915

Warning
Before starting any work on the product, make surethat the power supply has been switched off and thatit cannot be accidentally switched on.

Fig. 3

How to fit the connections33.5.2 Suction from a well

3.4.2 How to reduce noise in the installation

2

Correct installation using a vibration-damping rubber pad, flexible
hoses and correctly placed pipe hangers for rigid pipes can
reduce the noise experienced by up to 50 %. See fig. 4.

1

Place pipe hangers for the rigid pipes close to the connection of
the flexible hose.

H1

Pipe hanger for rigid pipe
Flexible hose

4

TM06 4321 1915

Rubber pad

Fig. 4

How to reduce noise in the installation

Fig. 61

Highest tapping point

2

Isolating valve

3

Inlet filter.
If the water can contain sand, gravel or other debris,
please install a filter on the inlet side to protect the pumpand installation.

4

Foot valve with strainer

H1

Maximum suction lift is 8 m (29 ft)

H2

Inlet pipe must be submersed at least 0.5 m (1.64 ft)

3.5.1 Mains water pressure boosting
1
2

Suction from a wellPos. Description

3.5 Installation examples
Fittings, hoses and valves are not supplied with the pump.

TM06 4349 2015

H2

3

3.5.3 Suction from freshwater tank
7

3

9

4

1

10
5

6

2
8

3

Fig. 5

2

TM06 4347 2015

3

4

5

Mains water pressure boosting
min1

Pos. Description

4

1Highest tapping point

2

Pipe hangers and supports

3

Isolating valves

4

Flexible hoses

5

Bypass valve

Fig. 7

6

Optional pressure-reducing valve on the inlet side if theinlet pressure can exceed 10 bar (145 psi)

Pos. Description

7

Optional pressure-relief valve on the outlet side if theinstallation cannot stand up to a pressure of 6 bar (87
psi)

7
6

Suction from freshwater tank1

Highest tapping point

2

Pipe hangers

3

Isolating valve

4

Flexible hoses

8

Drip tray. Install the pump on a small stand to avoid theventilation holes from being flooded.

9

Pressure gauge

5

Drain to sewer

10

Mains water pipe

6

Foot valve with strainer

7

Freshwater tank

TM06 4348 2015

English (GB)Vibrations from the pump may be transferred to the surrounding
structure and create noise in the 20-1000 Hz spectrum, also
called the bass spectrum.

3.6 Suction pipe length
The overview below shows the different possible pipe lengths,
depending on the vertical pipe length.

Warning
The electrical connection must be carried out by anauthorised electrician in accordance with local
regulations.

The overview is only intended as a guide.

Warning

L

Before making any connections in the product, makesure that the power supply has been switched off andthat it cannot be accidentally switched on.
The product must be connected to an external mains
switch with a contact gap of at least 3 mm (0.12 inch)
in all poles.
TM06 4372 2115

H

Fig. 8English (GB)3.7.2 Connections without plug

4. Starting up the productCaution

Do not start the pump until it has been filled withliquid.

4.1 Priming the pump

Suction pipe length
DN 32

1. Unscrew the priming plug and pour minimum 1.7 litres (0.45
gallons) of water into the pump housing. See fig. 9.

DN 40

2. Screw the priming plug on again.

H[m (ft)]L[m (ft)]H[m (ft)]L[m (ft)]0 (0)68 (223)0 (0)207 (679)

3 (10)

43 (141)

3 (10)

129 (423)

6 (20)

17 (56)6 (20)

52 (171)

7 (23)

9 (30)

7 (23)

26 (85)

4.2 Starting the pump

8 (26)0 (0)8 (26)0 (0)1. Open a tap to prepare the pump for venting.

Preconditions:
Maximum flow velocity: 1 l/s (16 gpm)
Inside roughness of pipes: 0.01 mm (0.0004 inch).

Note

If the suction depth exceeds 6 m (20 ft), it may benecessary to prime the pump more than once.

Caution

Always tighten priming and drain plugs by hand.

2. Insert the power plug into the socket or turn on the power
supply and the pump will start.
3. When water flows without air, close the tap.
4. Open the highest tapping point in the installation, preferably a
shower.

Size

Inside pipe diameter Pressure loss

DN 32

28 mm (1.1 inches)

0.117 m/m (5 psi/100 ft)

5. Adjust the pressure to the required pressure by means of the
buttons.

DN 40

35.2 mm (1.4 inches)

0.0387 m/m (1.6 psi/100 ft)

6. Close the tapping point.

3.7 Electrical connection

Startup has been completed.

3.7.1 Plug connection
Warning
Check that the voltage and frequency of the productmatch voltage and frequency of the installation site.
Warning
If the power supply cable is damaged, it must be
replaced by the manufacturer, his service agent orsimilarly qualified persons in order to avoid hazard.
TM06 4204 1615

Warning
As a precaution, the product must be connected to asocket with earth connection.

Note

We recommend that you fit the permanent
installation with an earth leakage circuit breaker(ELCB) with a tripping current < 30 mA.

Fig. 9Priming the pump

The pump incorporates current and temperature dependent
motor protection.

56. Product introduction

The shaft-seal faces are lubricated by the pumped liquid,
meaning that there may be a certain amount of leakage from theshaft seal.

6.1 Product description

When the pump is started up for the first time, or when the shaft
seal has been replaced, a certain run-in period is required before
the leakage is reduced to an acceptable level. The time required
for this depends on the operating conditions, that is, every time
the operating conditions change, a new run-in period will bestarted.

1

5

2

3
4

7

5. Storing and handling the product895.1 Handling
Caution

TM06 3818 1015

6

Under normal conditions, the leaking liquid will evaporate. As aresult, no leakage will be detected.

Fig. 11 Grundfos SCALA pump

Take care not to drop the pump as it may break.

Pos. Description

5.2 Storing
In case the pump is to be stored for a period of time, drain it andstore it in a dry location.

1

Air valve for built-in pressure tank2

Operating panel. See section 7. Control functions.

Temperature range during storing must be -40 to 70 °C (104 to
158 °F).

3

Nameplate. See section 6.4.1 Nameplate.

4

Plug for access to pump shaft. See section
9.1 Deblocking the pump.

5

Priming plug. See section 4.1 Priming the pump.

6

Outlet opening. With ± 5 ° flexible connection. See
section 3.4.1 Pipework.

7

Inlet opening. With ± 5 ° flexible connection. See section
3.4.1 Pipework.

2. Disconnect the power supply.

8

Drain plug. See section 5.3 Winterizing.

3. Open a tap to release the pressure in the pipe system.

9

Ventilation holes. Must not be flooded.

5.3 Winterizing
If the pump is going to be out of operation during the winter andcan be exposed to frost, it must be disconnected from the power
supply and winterized.
Proceed as follows:
1. Stop the pump by means of the on/off button.

4. Close the isolating valves and/or drain the pipes.

6.2 Application

5. Gradually loosen the priming plug to release the pressure in
the pump.

The pump is suitable for pressure boosting of fresh water indomestic water supply systems.

6. Remove the drain plug to drain the pump. See fig. 10.

6.3 Pumped liquids
The pump is designed for clean fresh water and chlorinated water< 300 ppm.

TM06 4203 1615

English (GB)

4.3 Shaft seal run-in

Fig. 10 Draining the pump
5.3.1 Startup after the winterCheck that the pump is not blocked by following the steps insection 9.1 Deblocking the pump.
See section 4. Starting up the product.

66.4 Identification
6.4.1 Nameplate

SCALA2 3 -45 A

K

C

H

D

E

Type range
1
DK-8850 Bjerringbro, Denmark

15

2

SCALA2 3-45 AKCHDE

Model A
200-240V 50/60Hz
Made in Serbia

Hmax
Hmin
Hnom
Qnom
Tamb.max

16

PCS XXXXX.XX.XX

04-6292.2.41-2003
LSPr-022-IDN

NRP XXX-XXX-XXXXXX

3
4

P/N 99999999
S/N 
P/C 1519
45 m
16 m
27 m
3
3 m /h
55 C

10Tliq.max/Psyst.max:
45 C/1MPa

11
12

I(A) P1(W)Min. 0.01
2
Max. 2.8
550

17Fig. 12 Example of nameplate

13

SCALA2

Comfort3:[m3/h]

Maximum head

5
6
7
8
9

IPX4D

EconomyRated flow rate

45: [m]Material codeA:Standard

Supply voltage
K:
TM06 4340 201514

SCALA1

1 x 200-240 V, 50/60 Hz

M: 1 x 208-230 V, 60 HzV:

1 x 115 V, 60 Hz

W: 1 x 100-115 V, 50/60 Hz
Motor
C: High-efficiency motor with frequency converter
Mains cable and plug

Pos. Description

A:

Cable with plug, IEC type I, AS/NZS3112, 2 m
Cable with plug, IEC type B, NEMA 5-15P, 6 ft

1

Type designation

B:

2

Product number

C: Cable with plug, IEC, type E&F, CEE7/7, 2 m

3

Serial number

D: Cable without plug, 2 m

4

Production code (year and week)

G: Cable with plug, IEC type G, BS1363, 2 m

5Maximum head

H: Cable with plug, IEC type I, IRAM 2073, 2 m

6Minimum headJ:

7

Rated headController

8

Rated flow rate

D: Integrated frequency converter

9

Maximum ambient temperature

Thread10

IP class

A:

Cable with plug, NEMA 6-15P, 6 ft

R 1" EN 1.4308

11

Maximum operation pressure

C: NPT 1" EN 1.4308

12

Maximum liquid temperatureE:

R 1" composite material

13

Minimum and maximum rated power

F:

NPT 1" composite material

14

Model

15

Voltage and frequency

16

Approvals

17

Minimum and maximum rated current

7

English (GB)6.4.2 Type key

BAR

7.1 Menu overview, SCALA2

PSI

Water colum

kPa

MPa

}
}
}
}

5.5

80

55

550

0.55

5.0

73

50

500

0.50

4.5

65

45

450

0.45

4.0

58

40

400

0.40

3.5

51

35

350

0.35

3.0

44

30

300

0.30

2.5

36

25

250

0.25

2.0

30

20

200

0.20

1.5

22

15

150

0.15

TM06 4187 1615[m]

TM06 3301 5114

Fig. 15 Pressure indication table

Note

The pressure settings 4.5, 5.0 and 5.5 bar (65, 73
and 80 psi) require a minimum positive inlet pressure
which is maximum 4 bar (58 psi) lower than therequired outlet pressure.
Example: If the required outlet pressure is 5 bar, theminimum inlet pressure must be 1 bar (14.5 psi).

7.1.2 Indicator lights, SCALA2

Fig. 13 SCALA2 operating panel
Indications
SCALA2

Description
Operating indications

Function
On/off

The operating panel is locked

Increases the outlet pressure
Power supply failure

Decreases the outlet pressure
Resets alarms

The pump is blocked, e.g. the shaft seal has
seized up

Indicates the required outlet pressure

Leakage in the system

Indicates that the pump has been stopped manually
Dry-running or water shortage*

Indicates that the operating panel is locked
7.1.1 Pressure indicator, SCALA2

The maximum pressure has been exceeded or
the setpoint cannot be reached

The pressure indicator shows the required outlet pressure from
1.5 to 5.5 bars (22 to 80 psi) in 0.5 bar (7.5 psi) intervals. The
illustration below shows a pump set to 3 bar (44 psi) indicated by
two green lights and a pump set to 3.5 bar (51 psi) indicated by
one green light.

The maximum runtime has been exceeded

The temperature is outside the range*

TM06 4345 2015

English (GB)7. Control functions

Fig. 14 SCALA2 outlet pressure indication

8

For fault number 4, dry-running, the pump must be reset
manually. For fault number 4, water shortage, and theremaining faults, 1, 2, 3, 5, 6 and 7, the pump will reset
whenever the cause has disappeared or been remedied. See
section 8.3.2 Auto reset.

For further information about system status, see section
12.1 Grundfos Eye operating indications.

8. Operating the controller

English (GB)8.3.2 Auto reset
The factory setting for "Auto reset" is "on".

8.1 Setting the outlet pressure
Adjust the outlet pressure by pressingOn:.

8.2 Locking and unlocking the operating panel
The operating panel can be locked, which means that the buttons
do not function and no settings can be changed accidentally.

This function allows the pump to automatically check if theoperating conditions are back to normal. If the operating
conditions are back to normal, the alarm indication will be reset
automatically.
The "Auto reset" function works in the following way:

How to lock the operating panel
1. Hold down theseconds.

buttons simultaneously for three

2. The operating panel is locked whensymbol lights up.

Indication

ActionWater shortage

The pump will attempt eight restarts at
five-minute intervals. If not successful,
this cycle will be repeated after 24 hours.

Dry running(pump not primed)

Prime the pump and reset it manually.

All other indications

The pump will attempt three restarts
within the first 60 seconds, then eightrestart attempts at five-minute intervals. If
not successful, this cycle will be repeatedafter 24 hours.

How to unlock the operating panel
1. Hold down theseconds.

buttons simultaneously for three

2. The operating panel is unlocked whensymbol turns off.

8.3 Expert settings, SCALA2
Note

Expert settings are for installers only.

The expert setting menu allows the installer to toggle between thefunctions "Auto reset", "Anti cycling" and "Maximum continuous
operating time".
8.3.1 Accessing the expert settings

Off:All alarms must be reset manually by means of the

button.

8.3.3 Anti cycling

Proceed as follows:
1. Hold down the

For indications, see section 7.1.2 Indicator lights, SCALA2.

The factory setting for "Anti cycling" is "off".

button for five seconds.

This function monitors the stops and starts of the pump.

2. Thesymbol will start flashing to indicate that the expert
settings are active.

Off:

The pressure indicator now acts as the expert "menu". A flashinggreen diode is the cursor. Move the cursor using the
buttons, and toggle the selection on or off using the
button.
The diode for each setting will light up when the setting is active.

If the pump starts 40 times in a fixed pattern, there will be an
alarm. The pump will remain in operation as normal.
On:
If the pump starts and stops in a fixed pattern, there is a leakage
in the system, and the pump will stop and show alarm 3.

Move cursor up
Leakage in the system.

Move cursor down
Toggle settings

8.3.4 Maximum continuous operating time
The factory setting for "Maximum continuous operating time" is"off".
This function is a timer that can turn off the pump if it runs
continuously for 30 minutes.
Off:
If the pump exceeds the running time of 30 minutes, the pump will
run depending on the flow.

Auto reset

On:

Anti cycling

If the pump exceeds the running time of 30 minutes, the pump willstop after 30 minutes of continuous operation, and it will show
alarm 6. This alarm will always need to be reset manually.

Exit expert "menu"

Fig. 16 Expert "menu" overview

TM06 4346 2015

Maximum continuous
operating time

Maximum runtime exceeded.

8.4 Resetting to factory settings
The pump can be reset to factory setting by pressing the
buttons simultaneously for five seconds.

910.1.2 Inlet and outlet valves
The pump is maintenance-free, but we recommend that you
check and clean the inlet and outlet non-return valves once a
year or as needed.

9.1 Deblocking the pump
Warning1

Before starting any work on the product, make surethat the power supply has been switched off and thatit cannot be accidentally switched on.

2

The end cover incorporates a plug which can be removed bymeans of a suitable tool. This makes it possible to deblock thepump shaft if it has seized up as a result of inactivity.

5

3
4

7
8
9

TM06 3818 1015

6

Fig. 19 SCALA pump
TM06 4202 1615

To remove the inlet non-return valve, follow the steps below:
1. Turn off the power supply and disconnect the power plug.
2. Shut off the water source.
3. Open a tap to release the pressure in the pipe system.
4. Close the isolating valves and/or drain the pipes.
5. Gradually open and remove the priming plug. See fig. 19 (5).

Fig. 17 Deblocking the pump

6. Remove the drain plug and drain the pump. See fig. 19 (8).

9.2 Controller settings
The pump will remember the controller settings even if it is turnedoff.

7. Unscrew the union nut holding the inlet connection. See fig.
19 (7). Depending on the installation type, it may benecessary to remove the pipes from both the inlet and outlet
connections.

9.3 Priming

8. Pull out the inlet connection.

If the pump has been drained, it must be filled with liquid before
startup. See section 4. Starting up the product.

9. Pull out the inlet non-return valve.
10. Clean the non-return valve with warm water and a soft brush.
11. Assemble the components in reverse order.

10. Servicing the productTo remove the outlet non-return valve, follow the steps
below:

Warning
Before starting any work on the product, make surethat the power supply has been switched off and thatit cannot be accidentally switched on.

1. Turn off the power supply and disconnect the power plug.
2. Shut off the water source.
3. Open a tap to release the pressure in the pipe system.
4. Close the isolating valves and/or drain the pipes.

10.1 Maintaining the product10.1.1 Insect filter

5. Gradually open and remove the priming plug. See fig. 19 (5).
The plug and non-return valve are one unit.

The pump has an insect filter to prevent insects from nesting in
the pump.

6. Clean the non-return valve with warm water and a soft brush.

The filter is placed on the bottom and can easily be removed andcleaned with a stiff brush. See fig. 18.

7. Assemble the components in reverse order.

Clean the insect filter once a year or as needed.
Outlet non-return valve

TM06 4537 2515

Inlet non-returnvalve

Fig. 18 Insect filter

TM06 4331 1915

English (GB)

9. Starting up the product after shutdown or
standstill

Fig. 20 Outlet and inlet non-return valves10English (GB)10.2 Customer service information
For further information on service parts, see Grundfos ProductCenter on www.product-selection.grundfos.com.

10.3 Service kits
For further information on service kits, see Grundfos ProductCenter on www.grundfos.com.

11. Taking out of operation
For further information on how to take the product out of
operation, see end-of-life documentation on www.grundfos.com.

12. Fault finding the product12.1 Grundfos Eye operating indications
Grundfos Eye

Indication

Description

No lights are on.

The power is off.
The pump is not running.

Two opposite green indicator lights running in the The power is on.
direction of rotation of the pump.
The pump is running.

Two opposite green indicator lights at a 45 °The power is on.
angle is the icon used throughout this document
The pump is running.
for pump running.

Two opposite green indicator lights permanently The power is on.
on.
The pump is not running.

Two opposite red indicator lights flashing
simultaneously.

Alarm.
The pump has stopped.

Two opposite red indicator lights is the icon used Alarm.
throughout this document for pump stopped.
The pump has stopped.

12.2 Fault resetting
You can reset a fault indication in one of the following ways:•

When you have eliminated the fault cause, reset the pumpmanually by pressing the
button. The pump will then revert
to normal duty.

•

If the fault disappears by itself, the pump will attempt to reset
automatically and the fault indication will disappear if
automatic reset is successful and provided that you haveenabled "Auto reset" in the service menu.

1112.3 Fault finding chart

English (GB)Warning
Before starting fault finding, switch off the power
supply.

Automatic reset

Indicator light

Fault

Grundfos Eye

Make sure that the power supply cannot be
accidentally switched on.

1. The pump is notrunning.
-

Cause

Remedya) Power supply failure

Switch on the power supply.
Check the cables and cableconnections for defects and loose
connections and check for blown
fuses in the electrical installation.

b) The power supply is out ofprescribed voltage range

Check the power supply and thepump nameplate. Reestablish thepower supply within the prescribedvoltage range.

c) The shaft seal has seized up

See section 9. Starting up the productafter shutdown or standstill.

-

Yes

No

No

d) The pump is blocked by impurities See section 9. Starting up the productafter shutdown or standstill.
Contact Grundfos Service if the
problem persists.
e) Dry running

Yes
f)
No

2. The pump is
running.

3. Pump performanceis insufficient.

-

The maximum runtime has been
exceeded

Check the water source, and prime
the pump.
Check the installation for leakage andreset the alarm.

Nog) The internal non-return valve is
defective or blocked in completely
or partly open position

Clean, repair or replace thenon-return valve. See section
10. Servicing the product.

-a) Leakage from the pipework, orthe non-return valve is notproperly closed due to impurities

Check and repair the pipework, orclean, repair or replace the non-return
valve.

b) Small continuous consumption-

Check the taps and reconsider theusage pattern (ice machines, water
evaporators for air-conditioning, etc.).

-c) The temperature is below freezing
Consider protecting the pump and thepoint
installation against frost.

-a) The pump inlet pressure is toolowb) The pump is undersized.

-

-

-

-

-

-

-

-

-

c) The inlet pipe, the inlet strainer or
the pump is partly blocked by
impurities

Check the inlet conditions of thepump.
Replace the pump with a bigger
pump.
Clean the inlet pipe or the pump.

d) Leakage in the inlet pipe
Repair the inlet pipe.
e) Air in the inlet pipe or the pump

f)

Yes

12

The required outlet pressure is
too low for the installationg) The maximum temperature has
been exceeded and the pump is
running at reduced performance

Prime the inlet pipe and the pump.
Check the inlet conditions of thepump.
Increase the pressure setting (arrowup).
Check the cooling conditions. Protect
the pump against direct sunlight or
any nearby heat sources.

CauseRemedyYesa) The setpoint has been set toohigh. The difference between theoutlet pressure and the inlet
pressure must not exceed 4 bar(58 psi).
Example: If the required outletpressure is 5 bar (73 psi), theminimum inlet pressure must be 1
bar (14.5 psi).

Reduce the setpoint to 4 bar (58 psi)
+ positive inlet pressure.

Yesb) The maximum pressure has been
exceeded - the inlet pressure ishigher than 6 bar, 0.6 MPa (87psi)

Check the inlet conditions.

Yesc) The maximum pressure has been
exceeded - equipment elsewherein the system causes a highpressure at the pump (e.g. water
heater or defective safety
equipment)

Check the installation.

4. System
overpressure.

5. You can reset thepump, but it runs
only for a few
seconds.

a) Dry running or water shortage
Yes

Yes

b) The inlet pipe is blocked by
impurities

Yesc) The foot or non-return valve isblocked in closed position

English (GB)Automatic reset

Indicator light

Grundfos Eye

Fault

Check the water source, and prime
the pump.
Clean the inlet pipe.
Clean, repair or replace the foot or
non-return valve.

d) Leakage in the inlet pipe
Yes

Repair the inlet pipe.
e) Air in the inlet pipe or the pumpYes
6. You can reset thepump, but it starts
repeatedly,
immediately after
stopping.

NoNoa) The internal non-return valve is
defective or blocked in completely
or partly open position.
b) The tank precharge pressure isnot correct.

Prime the inlet pipe and the pump.
Check the inlet conditions of thepump.
Clean, repair or replace thenon-return valve.
Adjust the tank precharge pressure to
70 % of the required outlet pressure.

1314. Disposal
This product has been designed with focus on the disposal andrecycling of materials. The following disposal values apply to all
variants of Grundfos SCALA pumps:

13.1 Operating conditions
Maximum ambient
temperature:
1 x 208-230 V, 60 Hz:

45 °C (113 °F)

1 x 115 V, 60 Hz:

45 °C (113 °F)

1 x 200-240 V, 50/60 Hz:

55 °C (131 °F)

Maximum liquid temperature:

45 °C (113 °F)
10 bar, 1 MPa (145 psi)

Maximum inlet pressure:

6 bar, 0.6 MPa (87 psi)

Maximum head:

45 m (147 ft)

IP rating:

X4D (outdoor installation)
Clean water

Noise level:< 47-53 dB(A)13.2 Mechanical data
Pipe connections are R 1" or NPT 1".

13.3 Electrical data
Frequency[Hz]

Imax. [A]P1[W]Stand-by
power
[W]
2
2

SCALA2 1 x 200-240

50/60

2.3 - 2.8550

SCALA2 1 x 208-230

60

2.3 - 2.8550

2SCALA21 x 11560

5 - 5.7560

2Supplyvoltage [V]Frequency
[Hz]

2
2

Type

Plug
IEC, type E&F
IEC, type I

SCALA21 x 200-240

50/60

SCALA21 x 208-230

60

NEMA 6-15P

SCALA21 x 11560

IEC, type B, NEMA
5-15P

IEC, type G
None

13.3.1 Dimensions and weights

Type

H1
[mm]
[inch]

H2[mm][inch]

H3[mm][inch]

W1[mm][inch]

L1[mm][inch]

Weight[kg][lbs]

SCALA2

302
11.9

234
9.2

114
4.5

193
7.6

403
15.9

10
22

14

maximum 10 % for incineration•

maximum 5 % for depositing.

Subject to alterations.

Pumped liquid:

Supplyvoltage [V]minimum 85 % for recycling•

This product or parts of it must be disposed of in anenvironmentally sound way according to local regulations.

Maximum system pressure:

Type

•

Values are percent of total weight.

TM06 3305 5114

English (GB)

13. Technical dataFinland

Malaysia

Spain

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

OY GRUNDFOS Pumput AB
Trukkikuja 1
FI-01360 Vantaa
Phone: +358-(0) 207 889 500
Telefax: +358-(0) 207 889 550

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

Australia

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

GRUNDFOS Pumps Sdn. Bhd.
7 Jalan Peguam U1/25
Glenmarie Industrial Park
40150 Shah Alam
SelangorPhone: +60-3-5569 2922
Telefax: +60-3-5569 2866

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 2A-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

BelarusПредставительство ГРУНДФОС вМинске
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

Bosna 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

BrazilFranceGermany
GRUNDFOS GMBH
Schlüterstr. 33
40699 ErkrathTel.: +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

GreeceGRUNDFOS Hellas A.E.B.E.
20th km. Athinon-Markopoulou Av.
P.O. Box 71
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
KowloonPhone: +852-27861706 / 27861741
Telefax: +852-27858664

Hungary
GRUNDFOS Hungária Kft.
Park u. 8
H-2045 Törökbálint,
Phone: +36-23 511 110
Telefax: +36-23 511 111

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

India

Bulgaria

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

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

CanadaGRUNDFOS 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

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

Czech Republic
GRUNDFOS s.r.o.
Čajkovského 21
779 00 Olomouc
Phone: +420-585-716 111
Telefax: +420-585-716 299

Denmark
GRUNDFOS DK A/SMartin 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 OÜPeterburi tee 92G
11415 Tallinn
Tel: + 372 606 1690
Fax: + 372 606 1691

GRUNDFOS Pumps India Private Limited
118 Old Mahabalipuram Road
Thoraipakkam
Chennai 600 096
Phone: +91-44 2496 6800

Indonesia

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 4I-20060 Truccazzano (Milano)Tel.: +39-02-95838112
Telefax: +39-02-95309290 / 95838461

Japan
GRUNDFOS Pumps K.K.
Gotanda Metalion Bldg., 5F,
5-21-15, Higashi-gotanda
Shiagawa-ku, Tokyo
141-0022 Japan
Phone: +81 35 448 1391
Telefax: +81 35 448 9619

Korea

MexicoBombas 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
Veluwezoom 35
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 ZealandSwedenGRUNDFOS 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

TaiwanGRUNDFOS 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 Pumps NZ Ltd.
17 Beatrice Tinsley Crescent
North Harbour Industrial Estate
Albany, Auckland
Phone: +64-9-415 3240
Telefax: +64-9-415 3250

GRUNDFOS (Thailand) Ltd.
92 Chaloem Phrakiat Rama 9 Road,
Dokmai, Pravej, Bangkok 10250
Phone: +66-2-725 8999
Telefax: +66-2-725 8998

NorwayGRUNDFOS 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

GRUNDFOS Pumper A/S
Strømsveien 344
Postboks 235, Leirdal
N-1011 Oslo
Tlf.: +47-22 90 47 00
Telefax: +47-22 32 21 50

PolandGRUNDFOS 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

TurkeyUkraineБізнес Центр Європа
Столичне шосе, 103
м. Київ, 03131, Україна
Телефон: (+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

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

United Kingdom

RussiaU.S.A.

GRUNDFOS Pumps Ltd.
Grovebury Road
Leighton Buzzard/Beds. LU7 4TL
Phone: +44-1525-850000
Telefax: +44-1525-850011

ООО Грундфос Россия
109544, г. Москва, ул. Школьная, 39-41,
стр. 1Тел. (+7) 495 564-88-00 (495) 737-30-00Факс (+7) 495 564 88 11
E-mail grundfos.moscow@grundfos.com

GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: +1-913-227-3400
Telefax: +1-913-227-3500

SerbiaGrundfos Srbija d.o.o.
Omladinskih brigada 90b
11070 Novi Beograd
Phone: +381 11 2258 740
Telefax: +381 11 2281 769
www.rs.grundfos.com

Grundfos Tashkent, Uzbekistan The
Representative Office of Grundfos
Kazakhstan in Uzbekistan
38a, Oybek street, TashkentТелефон: (+998) 71 150 3290 / 71 150
3291
Факс: (+998) 71 150 3292

Singapore

Addresses Revised 25.01.2016

GRUNDFOS (Singapore) Pte. Ltd.
25 Jalan TukangSingapore 619264
Phone: +65-6681 9688
Telefax: +65-6681 9689

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

Slovakia

LatviaSlovenia

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

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

Lithuania

South Africa

GRUNDFOS Pumps UAB
Smolensko g. 6
LT-03201 Vilnius
Tel: + 370 52 395 430
Fax: + 370 52 395 431

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

GRUNDFOS s.r.o.
Prievozská 4D
821 09 BRATISLAVA
Phona: +421 2 5020 1426
sk.grundfos.com

Uzbekistan

Grundfos companies

Argentina

ECM: 1165354

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.

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