Grundfos SCALA User manual

SCALA
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

Table of contents
2
SCALA
English (GB)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Bahasa Indonesia (ID)
Petunjuk pengoperasian dan pemasangan . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

English (GB)
3
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 4
1.1 Target group 4
1.2 Symbols used in this document 4
2. Receiving the product 4
2.1 Inspecting the product 4
2.2 Scope of delivery 4
3. Installing the product 4
3.1 Location 4
3.2 System sizing 4
3.3 Mechanical installation 4
3.4 Foundation 5
3.5 Installation examples 6
3.6 Suction pipe length 7
3.7 Electrical connection 8
4. Starting up the product 8
4.1 Priming the pump 8
4.2 Starting the pump 8
4.3 Shaft seal run-in 8
5. Storing and handling the product 9
5.1 Handling 9
5.2 Storing 9
5.3 Winterizing 9
6. Product introduction 9
6.1 Product description 9
6.2 Application 9
6.3 Pumped liquids 9
6.4 Identification 10
7. Control functions 12
7.1 Menu overview, SCALA2 12
8. Operating the controller 13
8.1 Setting the outlet pressure 13
8.2 Locking and unlocking the operating
panel 13
8.3 Expert settings, SCALA2 13
8.4 Resetting to factory settings 15
9. Starting up the product after shutdown
or standstill 15
9.1 Deblocking the pump 15
9.2 Controller settings 15
9.3 Priming 15
10. Servicing the product 15
10.1 Maintaining the product 15
10.2 Customer service information 16
10.3 Service kits 16
11. Taking out of operation 16
12. Fault finding the product 17
12.1 Grundfos Eye operating indications 17
12.2 Fault resetting 17
12.3 Fault finding chart 18
13. Technical data 21
13.1 Operating conditions 21
13.2 Mechanical data 21
13.3 Electrical data 21
14. Disposal 21
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.
&DXWLRQ 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.

English (GB)
4
1. General information
1.1 Target group
These installation and operating instructions are
intended for professional installers.
1.2 Symbols used in this document
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
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
If these safety instructions are not
observed, it may result in personal injury.
Warning
If these instructions are not observed, it
may lead to electric shock with consequent
risk of serious personal injury or death.
&DXWLRQ
If these safety instructions are not
observed, it may result in malfunction or
damage to the equipment.
1RWH
Notes or instructions that make the job
easier and ensure safe operation.
&DXWLRQ
If the unlikely event of an internal leakage
occurs, the liquid 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.
Warning
The system in which the pump is
incorporated must be designed for the
maximum pump pressure.
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.

English (GB)
5
3.4 Foundation
Fasten the pump to a solid horizontal foundation by
means of screws through the holes in the base plate.
See figures 1 and 2.
Fig. 1 Horizontal foundation
Fig. 2 Base plate
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.
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
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 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.
Place pipe hangers for the rigid pipes close to the
connection of the flexible hose.
Fig. 4 How to reduce noise in the installation
TM06 5729 5315TM06 3809 1015
A 130 mm 5.12 inches
B 181 mm 7.13 inches
C 144 mm 5.67 inches
&DXWLRQ Always loosen and tighten inlet and outlet
union nuts by hand.
B
A
C
TM06 4318 1915TM06 4321 1915
Rubber pad
Pipe hanger for rigid pipe
Flexible hose

English (GB)
6
3.5 Installation examples
Fittings, hoses and valves are not supplied with the
pump.
3.5.1 Mains water pressure boosting
Fig. 5 Mains water pressure boosting
3.5.2 Suction from a well
Fig. 6 Suction from a well
TM06 4347 2015
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)
7
Optional pressure-relief valve on the outlet
side if the installation cannot stand up to a
pressure of 6 bar (85 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
49
1
37
2
5
10
62
3
8
TM06 4349 2015
Pos. Description
1 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 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)
H2 H1
4
3
2
1

English (GB)
7
3.5.3 Suction from freshwater tank
Fig. 7 Suction from freshwater tank
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.
Fig. 8 Suction pipe length
Preconditions:
Maximum flow velocity: 1 l/s (16 gpm)
Inside roughness of pipes: 0.01 mm (0.0004 inch).
TM06 4348 2015
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
min1
1
2
34
7
6
5
TM06 4372 2115
DN 32 DN 40
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)
8 (26) 0 (0) 8 (26) 0 (0)
Size Inside pipe
diameter Pressure loss
DN 32 28 mm
(1.1 inches)
0.117 m/m
(5 psi/100 ft)
DN 40 35.2 mm
(1.4 inches)
0.0387 m/m
(1.6 psi/100 ft)
H
L

English (GB)
8
3.7 Electrical connection
3.7.1 Plug connection
The pump incorporates current and temperature
dependent motor protection.
3.7.2 Connections without plug
4. Starting up the product
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.
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
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.
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.
1RWH
We recommend that you fit the permanent
installation with an earth leakage circuit
breaker (ELCB) with a tripping current < 30
mA.
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.
&DXWLRQ Do not start the pump until it has been
filled with liquid.
1RWH
If the suction depth exceeds 6 m (20 ft), it
may be necessary to prime the pump more
than once.
&DXWLRQ Always tighten priming and drain plugs by
hand.
TM06 4204 1615

English (GB)
9
5. Storing and handling the product
5.1 Handling
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.
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.
6. Product introduction
6.1 Product description
Fig. 11 Grundfos SCALA pump
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.
&DXWLRQ Take care not to drop the pump as it may
break.
TM06 4203 1615
TM06 3818 1015
Pos. Description
1 Air valve for built-in pressure tank
2Operating panel. See section 7. Control
functions.
3 Nameplate. See section 6.4.1 Nameplate.
4Plug for access to pump shaft. See section
9.1 Deblocking the pump.
5Priming plug. See section 4.1 Priming the
pump.
6Outlet opening. With ± 5 ° flexible
connection. See section 3.4.1 Pipework.
7Inlet 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.
15
6
7
8
2
3
4
9

English (GB)
10
6.4 Identification
6.4.1 Nameplate
Fig. 12 Example of nameplate
TM06 4340 2015
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
DK-8850 Bjerringbro, Denmark
SCALA2 3-45 AKCHDE
Model A
200-240V 50/60Hz
Made in Serbia
P/N 99999999
S/N 
P/C 1519
H
max
H min
H nom
Q nom
45 m
16 m
27 m
3m /h
3
45 C/
55 C
T amb.max
IPX4D
I(A)
Min.
Max.
P1(W)
0.01
2.8 550
2
T
liq.max /P syst.max:
1MPa
NRP XXX-XXX-XXXXXX
PCS XXXXX.XX.XX 04-6292.2.41-2003
LSPr-022-IDN
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