Grundfos SB Series, SBA Series, SB HF Series, SB 3-25, SB 3-35 Installation And Operating Instructions Manual
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SB, SBA
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
English (GB) Installation and operating instructions
English (GB)
Original installation and operating instructions
These installation and operating instructions
describe Grundfos SB, SBA and SB HF.
Sections 1-5 give the information necessary to be
able to unpack, install and start up the product in a
safe way.
Sections 6-10 give important information about the
product, as well as information on service, fault
finding and disposal of the product.
CONTENTS
Page
1. General information
1.1 Hazard statements
1.2 Notes
2. Receiving the product
2.1 Inspecting the packaging
2.2 Scope of delivery
3. Installing the product
3.1 Location
3.2 Mechanical installation
3.3 Pump position
3.4 Connecting the outlet hose or pipe
3.5 Non-return valve for SB pumps
3.6 Electrical connection
4. Starting up the product
4.1 SBA starting and stopping conditions
5. Handling and storing the product
5.1 Handling the product
5.2 Storing the product
5.3 Frost protection
6. Product introduction
6.1 Product description
6.2 SB pumps
6.3 SB HF pumps
6.4 SBA pumps
6.5 SBA dry-running protection
6.6 Intended use
6.7 Pumped liquids
6.8 Identification
7. Maintaining the product
8. Fault finding the product
9. Technical data
9.1 Operating conditions
9.2 Mechanical data
9.3 Electrical data
9.4 Dimensions
10. Disposing of the product
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1. General information
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1.1 Hazard statements
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The symbols and hazard statements below may
appear in Grundfos installation and operating
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instructions, safety instructions and service
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instructions.
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Read this document before you install the
product. Installation and operation must
comply with local regulations and accepted
codes of good practice.
This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and
understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not
be made by children without supervision.
Make sure that the system in which the
pump is incorporated is designed for the
maximum pump pressure.
This pump has been evaluated for use with
water only.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or
moderate personal injury.
2
The hazard statements are structured in the
following way:
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
Observe these instructions for explosionproof products.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.
2. Receiving the product
2.1 Inspecting the packaging
On receipt of the product, do the following:
1. Check that the product is as ordered. If the
product is not as ordered, contact the supplier.
2. Check that no visible parts have been damaged.
If any visible parts have been damaged, contact
the transport company.
2.2 Scope of delivery
The box contains the following items:
• 1 pump
• 1 adapter
• 1 installation and operating instructions
• 1 quick guide
• 1 floating inlet strainer, for side inlet variant only
• 1 non-return valve, for SB only.
3. Installing the product
Observe local regulations concerning
limits for manual lifting or handling.
CAUTION
Crushing of feet
Minor or moderate personal injury
- Use safety shoes when handling the
pump.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before you
start any work on the product. Make
sure that the power supply cannot be
accidentally switched on.
3.1 Location
Install the pump in a frost-free location.
Before the pump is submerged in the well or tank,
make sure that the well or tank does not contain
sand or solid sediment.
Install the pipe so that the pump is not exposed to
mechanical stress.
English (GB)
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3.1.1 Maximum installation depth
Max.
13 m/43 ft
Max.
20 m/66ft
SBA 3-35 SBA 3-45
Min.
5 cm/2 inch
Min.
10 cm/
4 inch
English (GB)
Product
Maximum installation depth
[m]
SB 10
SBA 10
SB HF 15
3.1.2 Highest tapping point for SBA pumps
Install SBA pumps so that the height between the
pump and the highest tapping point does not exceed
these values:
SBA 3-35: 13 m.
SBA 3-45: 20 m.
SB and SBA pump with a float switch and side
inlet
Fig. 2 Minimum space for SB and SBA pump in
a well or tank
SB HF pump with a float switch
TM06 7644 4016TM07 1399 1518
Fig. 1 Highest tapping point for SBA
3.1.3 Minimum space
Pumps installed with a float switch require a free
space between the float switch and the wall to
ensure free movability.
Pumps with side inlet require a free space between
the floating inlet strainer and the wall.
If you install the pump in a well or tank, the minimum
free space must be as shown in figs 2 and 3.
Pumps installed without a float switch require a
space that corresponds to the physical dimensions of
the pump.
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TM06 7648 4116
Fig. 3 Minimum space for SB HF pump. This
example shows installation in a well
3.1.4 Vertical placement of SB HF pump
Tank installation of SB HF
Place the pump on the bottom of the tank. The pump
must not run dry.
Well installation of SB HF
Install the pump so that the pump inlet is at least 1 m
above the bottom of the well to avoid suction of sand
and impurities. See fig. 3.
Use rigid metal pipes to hang the pump, and secure
the pipes with brackets at the top of the well.
Do not use the power cable to hang the
pump above the bottom of the well.
Secure the pump by attaching a wire to the lifting eye
on the top of the pump. Do not hang the pump on the
lifting wire.
3.1.5 Adjustment of the float switch
To make sure that the float switch can start and stop
the pump, adjust the start and stop level by changing
the free cable length between the float switch and
the lifting handle.
A reduced free cable length results in more starts
and stops and a small difference in level. The
minimum free cable length is 10-18 cm. See fig. 4.
• An increased free cable length results in fewer
starts and stops and a large difference in level.
Make sure that the float switch can move freely.
Make sure that the stop level does not fall below the
pump inlet strainer.
3.2 Mechanical installation
3.2.1 Lifting the product
Lift the pump by the lifting handle. Never lift the
pump by the power cable. Tie a rope to the lifting
handle or lifting eye instead.
Do not lift the product by the power cable.
Lift the product by means of a rope.
English (GB)
Fig. 4 Minimum free cable length for float
switch
Fig. 5 Lifting the pump
TM07 1355 1618
TM07 1402 1518
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3.3 Pump position
15 °
90 °
0 °
3
/4"
1"
English (GB)
3.3.1 Pump position of SB and SBA
Use the pump in the vertical position as shown in fig.
5.
Fig. 6 Position of SB, SBA pumps
3.3.2 Pump position of SB HF
The pump is suitable for both vertical and horizontal
installation. However, the pump shaft must never fall
below the horizontal plane. See fig. 7.
3.4 Connecting the outlet hose or pipe
Product
SB G 3/4 or 1
SBA G 3/4 or 1
SB HF G 1 1/4
The outlet hose or pipe can be connected to the
pump outlet port by means of an adapter. You can
also connect a pipe directly to the pump outlet.
SB and SBA pumps include an adapter. Cut off the
adapter so that it matches the outlet port diameter.
TM06 7643 4016TM07 1400 1518
Fig. 8 SB and SBA adapter
External pipe thread
[inch]
3.5 Non-return valve for SB pumps
Connect the non-return valve to the SB pump outlet.
The non-return valve has G 1" threads for connection
to the adapter or the pipe.
TM06 7645 2715TM06 7646 4016
Fig. 7 Position of SB HF pumps
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Fig. 9 Non-return valve
3.6 Electrical connection
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before you
start any work on the product. Make
sure that the power supply cannot be
accidentally switched on.
- The pump must be earthed.
DANGER
Electric shock
Death or serious personal injury
- The protective earth of the socket outlet
must be connected to the protective
earth of the pump. The plug must
therefore have the same PE connection
system as that of the socket outlet. If
not, use a suitable adapter.
We recommend that you fit the permanent
installation with a residual-current circuit
breaker, RCCB, with a tripping current less
than 30 mA.
DANGER
Electric shock
Death or serious personal injury
- If the pump is used for cleaning or other
maintenance of swimming pools,
garden ponds or similar places, make
sure that the pump is supplied through a
residual-current circuit breaker, RCCB,
with a tripping current of 30 mA.
3.6.1 Thermal protection
The pump has a built-in thermal switch and requires
no additional motor protection. If the pump is running
without water, or if it is otherwise overloaded, the
built-in thermal switch will cut out. When the motor
has cooled to normal temperature, it will restart
automatically.
3.6.2 Connecting to external controller
SB
SB pumps must be connected to an external
controller. We recommend a Grundfos Pressure
Manager: net.grundfos.com/qr/i/97506325
SBA
SBA pumps have an integrated control unit.
SB HF
SB HF pumps must be connected to an external
controller. We recommend a Grundfos Pressure
Manager: net.grundfos.com/qr/i/97506325
3.6.3 Power supply failure
In case of a power supply failure, the pump restarts
automatically when power returns and runs for at
least 10 s.
English (GB)
DANGER
Electric shock
Death or serious personal injury
- Connect pumps that are delivered
without cable and/or plugs to an
external main switch with a minimum
contact gap of 3 mm in all poles.
Make sure that there is at least 3 m free
cable above the liquid level.
Check that the supply voltage and frequency
correspond to the values stated on the pump
nameplate.
The electrical connection must be carried out by an
authorised electrician in accordance with local
regulations.
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