Installation and operating instructions - Grundfos

This alarm will always need to be reset manually. 8.4 Resetting to factory settings. The pump can be reset to factory setting by pressing the buttons ...

Installation and operating instructions

English (GB) 4 3.4.2 How to reduce noise in the installation Vibrations from the pump may be transferred to the surrounding structure and create noise in the 20-1000 Hz spectrum, also

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Grundfosliterature-5616244 15280191
SCALA
Installation and operating instructions

GRUNDFOS INSTRUCTIONS

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions
These installation and operating instructions describe Grundfos SCALA domestic water supply pumps.
Sections 1-4 give the information necessary yo be able to unpack, 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.

CONTENTS

Page

1. General information

2

1.1 Target group

2

1.2 Symbols used in this document

2

2. Receiving the product

3

2.1 Inspecting the product

3

2.2 Scope of delivery

3

3. Installing the product

3

3.1 Location

3

3.2 System sizing

3

3.3 Mechanical installation

3

3.4 Foundation

3

3.5 Installation examples

4

3.6 Suction pipe length

5

3.7 Electrical connection

5

4. Starting up the product

5

4.1 Priming the pump

5

4.2 Starting the pump

5

4.3 Shaft seal run-in

6

5. Storing and handling the product

6

5.1 Handling

6

5.2 Storing

6

5.3 Winterizing

6

6. Product introduction

6

6.1 Product description

6

6.2 Application

6

6.3 Pumped liquids

6

6.4 Identification

7

7. Control functions

8

7.1 Menu overview, SCALA2

8

8. Operating the controller

9

8.1 Setting the outlet pressure

9

8.2 Locking and unlocking the operating panel

9

8.3 Expert settings, SCALA2

9

8.4 Resetting to factory settings

9

9. Starting up the product after shutdown or standstill 10

9.1 Deblocking the pump

10

9.2 Controller settings

10

9.3 Priming

10

10. Servicing the product

10

10.1 Maintaining the product

10

10.2 Customer service information

11

10.3 Service kits

11

11. Taking out of operation

11

12. Fault finding the product

11

12.1 Grundfos Eye operating indications

11

12.2 Fault resetting

11

12.3 Fault finding chart

12

13. Technical data

14

13.1 Operating conditions

14

13.2 Mechanical data

14

13.3 Electrical data

14

14. Disposal

14

Caution

Warning Prior to installation, read this document and the quick guide. Installation and operation must comply with local regulations and accepted codes of good practice.
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 and knowledge if they are under supervision or have been instructed in the safe use of the product and understand the hazards involved. Children must not play with the product. Cleaning and maintenance of the product must not be made by children without supervision.
This pump has been evaluated for use with water only.
Warning Risk of electric shock. This pump has a grounding conductor and grounding-type attachment plug. To reduce the risk of electric shock, be certain that the pump is connected only to a properly grounded, grounding-type receptacle.

1. General information
1.1 Target group
These installation and operating instructions are intended for professional installers.
1.2 Symbols used in this document

Warning
If these safety instructions are not observed, it may result in personal injury.

Caution Note

Warning If these instructions are not observed, it may lead to electric shock with consequent risk of serious personal injury or death.
If these safety instructions are not observed, it may result in malfunction or damage to the equipment.
Notes or instructions that make the job easier and ensure safe operation.

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TM06 5729 5315
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B
TM06 3809 1015

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: · 1 Grundfos SCALA pump · 1 quick guide · 1 safety instructions booklet.
3. Installing the product
3.1 Location
The pump can be installed indoors or outdoors, but it must not be exposed to frost. 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.
3.1.1 Minimum space The pump requires a minimum space of 430 x 215 x 325 mm (17 x 8.5 x 12.8 inches). Even though the pump does not require much space, we recommend that you leave enough space for service and maintenance 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.
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 resistance on 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
Warning 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.

3.4 Foundation
Fasten the pump to a solid horizontal foundation by means of screws through the holes in the base plate. See figures 2 and 1.
Fig. 1 Horizontal foundation

C

A Fig. 2 Base plate

A 130 mm B 181 mm C 144 mm

5.12 inches 7.13 inches 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 °, to facilitate the connection of inlet and outlet pipes. The inlet and outlet ports can be loosened by turning the union nuts by hand.

Always loosen and tighten inlet and outlet union nuts Caution by 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 the connections with one hand, and tightening the union nuts with the other hand. See fig. 3.

Fig. 3 How to fit the connections

TM06 4318 1915

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TM06 4349 2015

3.4.2 How to reduce noise in the installation

3.5.2 Suction from a well

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.
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.

2 1

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

Pipe hanger for rigid pipe

H1

Flexible hose
3

H2

Rubber pad

Fig. 4 How to reduce noise in the installation
3.5 Installation examples
Fittings, hoses and valves are not supplied with the pump. 3.5.1 Mains water pressure boosting
1
2

73 9

4

10

5

62

8

3

Fig. 5 Mains water pressure boosting

Pos. Description

1 Highest tapping point

2 Pipe hangers and supports

3 Isolating valves

4 Flexible hoses

5 Bypass valve

6

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

Optional pressure-relief valve on the outlet side if the 7 installation cannot stand up to a pressure of 6 bar (87
psi)

8

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

9 Pressure gauge

10 Mains water pipe

TM06 4347 2015

TM06 4321 1915

4

Fig. 6 Suction from a well

Pos. Description

1 Highest tapping point

2 Isolating valve

Inlet filter.

3

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

and 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)

3.5.3 Suction from freshwater tank

1

2 34
5 min1

7
6
Fig. 7 Suction from freshwater tank
Pos. Description 1 Highest tapping point 2 Pipe hangers 3 Isolating valve 4 Flexible hoses 5 Drain to sewer 6 Foot valve with strainer 7 Freshwater tank

TM06 4348 2015

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H TM06 4372 2115
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3.6 Suction pipe length
The overview below shows the different possible pipe lengths, depending on the vertical pipe length. The overview is only intended as a guide.
L

Fig. 8 Suction pipe length

DN 32

DN 40

H [m (ft)]
0 (0) 3 (10) 6 (20) 7 (23) 8 (26)

L [m (ft)]
68 (223) 43 (141) 17 (56)
9 (30) 0 (0)

H [m (ft)]
0 (0) 3 (10) 6 (20) 7 (23) 8 (26)

L [m (ft)]
207 (679) 129 (423) 52 (171)
26 (85) 0 (0)

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

Size DN 32 DN 40

Inside pipe diameter Pressure loss 28 mm (1.1 inches) 0.117 m/m (5 psi/100 ft) 35.2 mm (1.4 inches) 0.0387 m/m (1.6 psi/100 ft)

3.7 Electrical connection
3.7.1 Plug connection

Warning
Check that the voltage and frequency of the product match 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 or similarly qualified persons in order to avoid hazard.

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

We recommend that you fit the permanent Note installation with an earth leakage circuit breaker
(ELCB) with a tripping current < 30 mA.
The pump incorporates current and temperature dependent motor protection.

3.7.2 Connections without plug Warning The electrical connection must be carried out by an authorised electrician in accordance with local regulations. Warning Before making any connections in the product, make sure that the power supply has been switched off and that 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.
4. Starting up the product
Do not start the pump until it has been filled with Caution liquid.
4.1 Priming the pump
1. Unscrew the priming plug and pour minimum 1.7 litres (0.45 gallons) of water into the pump housing. See fig. 9.
2. Screw the priming plug on again. If the suction depth exceeds 6 m (20 ft), it may be
Note necessary to prime the pump more than once. Caution Always tighten priming and drain plugs by hand.
4.2 Starting the pump
1. Open a tap to prepare the pump for venting. 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. 5. Adjust the pressure to the required pressure by means of the
buttons. 6. Close the tapping point. Startup has been completed.
Fig. 9 Priming the pump

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TM06 3818 1015

4.3 Shaft seal run-in
The shaft-seal faces are lubricated by the pumped liquid, meaning that there may be a certain amount of leakage from the shaft seal. 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 be started. Under normal conditions, the leaking liquid will evaporate. As a result, no leakage will be detected.
5. Storing and handling the product
5.1 Handling
Caution Take care not to drop the pump as it may break.
5.2 Storing
In case the pump is to be stored for a period of time, drain it and store it in a dry location. Temperature range during storing must be -40 to 70 °C (104 to 158 °F).
5.3 Winterizing
If the pump is going to be out of operation during the winter and can 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 . 2. Disconnect the power supply. 3. Open a tap to release the pressure in the pipe system. 4. Close the isolating valves and/or drain the pipes. 5. Gradually loosen the priming plug to release the pressure in
the pump. 6. Remove the drain plug to drain the pump. See fig. 10.

6. Product introduction 6.1 Product description

1 5
2

6

3

4

7

8

9 Fig. 11 Grundfos SCALA pump

Pos. Description

1 Air valve for built-in pressure tank

2 Operating panel. See section 7. Control functions.

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.

8 Drain plug. See section 5.3 Winterizing.

9 Ventilation holes. Must not be flooded.

6.2 Application
The pump is suitable for pressure boosting of fresh water in domestic water supply systems.

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

TM06 4203 1615

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

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TM06 4340 2015
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6.4 Identification
6.4.1 Nameplate

1

14 15
16

DK-8850 Bjerringbro, Denmark

SCALA2 3-45 AKCHDE

Model A

P/N 99999999

200-240V 50/60Hz

S/N 

Made in Serbia

P/C 1519

2 3 4

Hmax

45 m

5

Hmin Hnom Qnom

16 m

6

27 m

7

3 m3/h

8

Tamb.max 55 C

9

IPX4D

10

PCS XXXXX.XX.XX 04-6292.2.41-2003 LSPr-022-IDN
NRP XXX-XXX-XXXXXX

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

I(A) P1(W)
Min. 0.01 2 Max. 2.8 550
17

11 12 13

Fig. 12 Example of nameplate

Pos. Description
1 Type designation 2 Product number 3 Serial number 4 Production code (year and week) 5 Maximum head 6 Minimum head 7 Rated head 8 Rated flow rate 9 Maximum ambient temperature 10 IP class 11 Maximum operation pressure 12 Maximum liquid temperature 13 Minimum and maximum rated power 14 Model 15 Voltage and frequency 16 Approvals 17 Minimum and maximum rated current

6.4.2 Type key
SCALA2 3 -45 A K C H D E
Type range SCALA1 Economy SCALA2 Comfort Rated flow rate 3: [m3/h] Maximum head 45: [m] Material code A: Standard Supply voltage K: 1 x 200-240 V, 50/60 Hz M: 1 x 208-230 V, 60 Hz V: 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 A: Cable with plug, IEC type I, AS/NZS3112, 2 m B: Cable with plug, IEC type B, NEMA 5-15P, 6 ft C: Cable with plug, IEC, type E&F, CEE7/7, 2 m D: Cable without plug, 2 m G: Cable with plug, IEC type G, BS1363, 2 m H: Cable with plug, IEC type I, IRAM 2073, 2 m J: Cable with plug, NEMA 6-15P, 6 ft Controller D: Integrated frequency converter Thread A: R 1" EN 1.4308 C: NPT 1" EN 1.4308 E: R 1" composite material F: NPT 1" composite material

7

English (GB)

TM06 3301 5114 TM06 4187 1615

7. Control functions 7.1 Menu overview, SCALA2

} }
} }

BAR

PSI

Water colum kPa MPa

[m]

5.5

80

5.0

73

4.5

65

4.0

58

3.5

51

3.0

44

2.5

36

2.0

30

1.5

22

55

550 0.55

50

500 0.50

45

450 0.45

40

400 0.40

35

350 0.35

30

300 0.30

25

250 0.25

20

200 0.20

15

150

0.15

Fig. 13 SCALA2 operating panel
SCALA2 Function On/off Increases the outlet pressure Decreases the outlet pressure Resets alarms
Indicates the required outlet pressure
Indicates that the pump has been stopped manually Indicates that the operating panel is locked
7.1.1 Pressure indicator, SCALA2 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.

Fig. 15 Pressure indication table
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 the Note required outlet pressure. Example: If the required outlet pressure is 5 bar, the minimum inlet pressure must be 1 bar (14.5 psi). 7.1.2 Indicator lights, SCALA2
Indications Description Operating indications
The operating panel is locked
Power supply failure
The pump is blocked, e.g. the shaft seal has seized up
Leakage in the system
Dry-running or water shortage*
The maximum pressure has been exceeded or the setpoint cannot be reached
The maximum runtime has been exceeded
The temperature is outside the range
* For fault number 4, dry-running, the pump must be reset manually. For fault number 4, water shortage, and the remaining 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.

TM06 4345 2015

Fig. 14 SCALA2 outlet pressure indication

8

English (GB)

8. Operating the controller

8.1 Setting the outlet pressure

Adjust the outlet pressure by pressing

.

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.

How to lock the operating panel

1. Hold down the seconds.

buttons simultaneously for three

2. The operating panel is locked when symbol lights up.

How to unlock the operating panel

1. Hold down the seconds.

buttons simultaneously for three

2. The operating panel is unlocked when symbol turns off.

8.3 Expert settings, SCALA2

Note Expert settings are for installers only.
The expert setting menu allows the installer to toggle between the functions "Auto reset", "Anti cycling" and "Maximum continuous operating time".
8.3.1 Accessing the expert settings
Proceed as follows: 1. Hold down the button for five seconds. 2. The symbol will start flashing to indicate that the expert
settings are active. The pressure indicator now acts as the expert "menu". A flashing green 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.

Move cursor up Move cursor down

Toggle settings

Auto reset Anti cycling Maximum continuous operating time Exit expert "menu"
Fig. 16 Expert "menu" overview

TM06 4346 2015

8.3.2 Auto reset
The factory setting for "Auto reset" is "on".
On: This function allows the pump to automatically check if the operating 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:

Indication Water shortage Dry running (pump not primed)
All other indications

Action
The pump will attempt eight restarts at five-minute intervals. If not successful, this cycle will be repeated after 24 hours.
Prime the pump and reset it manually.
The pump will attempt three restarts within the first 60 seconds, then eight restart attempts at five-minute intervals. If not successful, this cycle will be repeated after 24 hours.

For indications, see section 7.1.2 Indicator lights, SCALA2. Off: All alarms must be reset manually by means of the button.

8.3.3 Anti cycling
The factory setting for "Anti cycling" is "off". This function monitors the stops and starts of the pump.
Off: 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.

Leakage in the system.

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

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.

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TM06 4202 1615 TM06 3818 1015

9. Starting up the product after shutdown or standstill
9.1 Deblocking the pump
Warning 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. The end cover incorporates a plug which can be removed by means of a suitable tool. This makes it possible to deblock the pump shaft if it has seized up as a result of inactivity.
Fig. 17 Deblocking the pump
9.2 Controller settings
The pump will remember the controller settings even if it is turned off.
9.3 Priming
If the pump has been drained, it must be filled with liquid before startup. See section 4. Starting up the product.
10. Servicing the product
Warning 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.
10.1 Maintaining the product
10.1.1 Insect filter The pump has an insect filter to prevent insects from nesting in the pump. The filter is placed on the bottom and can easily be removed and cleaned with a stiff brush. See fig. 18. Clean the insect filter once a year or as needed.

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.
1 5
2

6

3

4

7

8

9 Fig. 19 SCALA pump

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). 6. Remove the drain plug and drain the pump. See fig. 19 (8). 7. Unscrew the union nut holding the inlet connection. See fig.
19 (7). Depending on the installation type, it may be necessary to remove the pipes from both the inlet and outlet connections. 8. Pull out the inlet connection. 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.
To remove the outlet 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).
The plug and non-return valve are one unit. 6. Clean the non-return valve with warm water and a soft brush. 7. Assemble the components in reverse order.

Outlet non-return valve

Fig. 18 Insect filter

Inlet non-return valve
Fig. 20 Outlet and inlet non-return valves

TM06 4537 2515 TM06 4331 1915

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10.2 Customer service information
For further information on service parts, see Grundfos Product Center on www.product-selection.grundfos.com.
10.3 Service kits
For further information on service kits, see Grundfos Product Center 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 product 12.1 Grundfos Eye operating indications

Grundfos Eye

Indication

No lights are on.

Description
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 ° angle is the icon used throughout this document for pump running.

The power is on. The pump is 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 pump manually 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 have enabled "Auto reset" in the service menu.

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English (GB)

12.3 Fault finding chart
Warning Before starting fault finding, switch off the power supply. Make sure that the power supply cannot be accidentally switched on.

Grundfos Eye Indicator light Automatic reset

Fault 1. The pump is not
running.
2. The pump is running.
3. Pump performance is insufficient.

Cause

Remedy

a) Power supply failure

-

-

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

b) The power supply is out of

Yes

prescribed voltage range

Check the power supply and the pump nameplate. Reestablish the power supply within the prescribed voltage range.

No

c) The shaft seal has seized up

See section 9. Starting up the product after shutdown or standstill.

d) The pump is blocked by impurities See section 9. Starting up the product

No

after shutdown or standstill. Contact Grundfos Service if the

problem persists.

e) Dry running Yes

Check the water source, and prime the pump.

No

f) The maximum runtime has been exceeded

Check the installation for leakage and reset the alarm.

g) The internal non-return valve is Clean, repair or replace the

No

defective or blocked in completely non-return valve. See section

or partly open position

10. Servicing the product.

a) Leakage from the pipework, or Check and repair the pipework, or

-

the non-return valve is not

clean, repair or replace the non-return

properly closed due to impurities valve.

b) Small continuous consumption Check the taps and reconsider the

-

usage pattern (ice machines, water

evaporators for air-conditioning, etc.).

-

c)

The temperature is below freezing point

Consider protecting the pump and the installation against frost.

-

-

a) The pump inlet pressure is too low

Check the inlet conditions of the pump.

-

b) The pump is undersized.

Replace the pump with a bigger pump.

c) The inlet pipe, the inlet strainer or

-

-

the pump is partly blocked by

Clean the inlet pipe or the pump.

impurities

d) Leakage in the inlet pipe

-

-

Repair the inlet pipe.

e) Air in the inlet pipe or the pump Prime the inlet pipe and the pump.

-

-

Check the inlet conditions of the

pump.

-

-

f) The required outlet pressure is too low for the installation

Increase the pressure setting (arrow up).

g) The maximum temperature has Check the cooling conditions. Protect

Yes

been exceeded and the pump is the pump against direct sunlight or

running at reduced performance any nearby heat sources.

12

Grundfos Eye Indicator light Automatic reset
English (GB)

Fault 4. System
overpressure.
5. You can reset the pump, but it runs only for a few seconds.
6. You can reset the pump, but it starts repeatedly, immediately after stopping.

Cause

Remedy

a) The setpoint has been set too

high. The difference between the

outlet pressure and the inlet

Yes

pressure must not exceed 4 bar (58 psi). Example: If the required outlet

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

pressure is 5 bar (73 psi), the

minimum inlet pressure must be 1

bar (14.5 psi).

b) The maximum pressure has been

Yes

exceeded - the inlet pressure is higher than 6 bar, 0.6 MPa (87

Check the inlet conditions.

psi)

c) The maximum pressure has been

exceeded - equipment elsewhere

Yes

in the system causes a high pressure at the pump (e.g. water

Check the installation.

heater or defective safety

equipment)

a) Dry running or water shortage Yes

Check the water source, and prime the pump.

b) The inlet pipe is blocked by

Yes

impurities

Clean the inlet pipe.

c) The foot or non-return valve is

Yes

blocked in closed position

d) Leakage in the inlet pipe Yes

Clean, repair or replace the foot or non-return valve.
Repair the inlet pipe.

e) Air in the inlet pipe or the pump Prime the inlet pipe and the pump.

Yes

Check the inlet conditions of the

pump.

No

a)

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

Clean, repair or replace the non-return valve.

No

b) The tank precharge pressure is not correct.

Adjust the tank precharge pressure to 70 % of the required outlet pressure.

13

English (GB)

13. Technical data

13.1 Operating conditions

Maximum ambient temperature: 1 x 208-230 V, 60 Hz: 1 x 115 V, 60 Hz: 1 x 200-240 V, 50/60 Hz: Maximum liquid temperature: Maximum system pressure: Maximum inlet pressure: Maximum head: IP rating: Pumped liquid: Noise level:

45 °C (113 °F) 45 °C (113 °F) 55 °C (131 °F) 45 °C (113 °F) 10 bar, 1 MPa (145 psi) 6 bar, 0.6 MPa (87 psi) 45 m (147 ft) X4D (outdoor installation) Clean water < 47-53 dB(A)

13.2 Mechanical data
Pipe connections are R 1" or NPT 1".

13.3 Electrical data

Type

Supply voltage [V]

Frequency [Hz]

Imax. [A]

P1 [W]

Stand-by power [W]

2 2 SCALA2 1 x 200-240 50/60 2.3 - 2.8 550 2

2

SCALA2 1 x 208-230

60

2.3 - 2.8 550

2

SCALA2 1 x 115

60

5 - 5.7 560

2

Type

Supply Frequency

voltage [V]

[Hz]

SCALA2 1 x 200-240 50/60

SCALA2 1 x 208-230

60

SCALA2 1 x 115

60

13.3.1 Dimensions and weights

Plug
IEC, type E&F IEC, type I IEC, type G None
NEMA 6-15P IEC, type B, NEMA
5-15P

14. Disposal
This product has been designed with focus on the disposal and recycling of materials. The following disposal values apply to all variants of Grundfos SCALA pumps: · minimum 85 % for recycling · maximum 10 % for incineration · maximum 5 % for depositing. Values are percent of total weight. This product or parts of it must be disposed of in an environmentally sound way according to local regulations.
Subject to alterations.

TM06 3305 5114

Type

H1 [mm] [inch]

SCALA2

302 11.9

H2 [mm] [inch]
234 9.2

H3 [mm] [inch]
114 4.5

W1 [mm] [inch]
193 7.6

L1 [mm] [inch]
403 15.9

Weight [kg] [lbs]
10 22

14

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
    220125,  . , 11, . 56,  «» .: +7 (375 17) 286 39 72/73 : +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
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
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. Cajkovského 21 779 00 Olomouc Phone: +420-585-716 111 Telefax: +420-585-716 299
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 Telefax: +358-(0) 207 889 550
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. 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 Kowloon Phone: +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
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. 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
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 iel 60, LV-1035, Rga, Tlr.: + 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 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 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 Przemierowo 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
   109544, . , . , 39-41, . 1 . (+7) 495 564-88-00 (495) 737-30-00  (+7) 495 564 88 11 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. Leskoskova 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
    , 103 . , 03131,  : (+38 044) 237 04 00 .: (+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 17100 West 118th Terrace Olathe, Kansas 66061 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 : (+998) 71 150 3290 / 71 150 3291 : (+998) 71 150 3292
Addresses Revised 25.01.2016

Grundfos companies

98880508 0416
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www.grundfos.com

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