Grundfos SA Series User manual

GRUNDFOS INSTRUCTIONS
SA-CSIR, SA-CSCR
Control box
Installation and operating instructions

English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions describe the SA-CSIR, SA-
CSCR control box.
Sections 1-3 give the information necessary to be able to unpack, install and
start up the product in a safe way.
Sections 4-8 give important information about the product, as well as
information on service, fault finding and disposal of the product.
CONTENTS
Page
1. General information 3
1.1 Target group 3
1.2 Symbols used in this document 3
2. Receiving the product 4
3. Installing the product 4
3.1 Location 5
3.2 Mechanical installation 5
3.3 Electrical connection 5
4. Product introduction 10
4.1 Approvals and marks 10
5. Servicing the product 10
6. Fault finding the product 11
7. Technical data 13
8. Disposing of the product 13
Prior to installation, read this document. Installation and operation
must comply with local regulations and accepted codes of good
practice.

English (GB)
3
1. General information
1.1 Target group
1.2 Symbols used in this document
1.2.1 Warnings against hazards involving risk of death or personal
injury
The text accompanying the three hazard symbols DANGER, WARNING and
CAUTION is structured in the following way:
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.
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.
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.

English (GB)
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1.2.2 Other important notes
2. Receiving the product
Inspect the product for visible damage. In case you find damage to the
product, do not install it, but contact Grundfos service or sales for advice.
3. Installing the product
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.
DANGER
Electric shock
Death or serious personal injury
- 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 SA-CSIR, SA-CSCR Grundfos submersible pump control box
is intended for use with Grundfos single-phase, 3-wire submersible
motors as a starting device only.

English (GB)
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3.1 Location
The product can be installed indoors and outdoors under a cover.
3.2 Mechanical installation
3.2.1 Mounting
Mount the control box in vertical position with the top side up.
If you mount it in any other position, the starting relay may not function
properly, and the overload relay may trip.
The starting relay is mounted inside the control box and if it is not possible to
mount the control box in vertical position, make sure to position the starting
relay correctly according to the arrow on the component.
Fasten the control box securely to the mounting surface through the
mounting holes provided.
3.3 Electrical connection
3.3.1 Wiring
Connect the control box to the mains supply and the motor as shown in the
wiring diagrams below. See also section 3.3.3 Earthing on page 9.
Use 2.5 mm2(AWG 14, 70 °C) copper conductors only and tighten all
connections to 2 Nm.
Make sure that the submersible pump, the submersible motor and control
box are designed for the same voltage.
Connect a properly sized motor and electrical wires as per fig. 1on page 6.
Before making the final connection of the submersible drop cable to the
control box, check the insulation resistance.
Do not operate the pump without the control box. Otherwise, the
motor will burn out.
The control box is for submersible pumps only.

English (GB)
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3.3.2 Wiring diagrams
Fig. 1 Overview of single-phase connection for Grundfos 3-wire control
boxes
Fig. 2 Connection of 0.37 - 0.75 kW SA-CSIR models
TM06 5330 4615TM06 5331 4615
BRW BLK GRY
Control
box
Fused
switch
Brown
Yellow and
green
Black
Grey Use dotted line
for 115 V
operation
Well seal
Pressure
switch
BRW BLKGRY
Capacitor
Green
Main Common AUX Line
Black
Brown
Brown
Grey
Grey
Black
Green
Relay
Neutral Line

English (GB)
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Fig. 3 Connection of 1.1 kW SA-CSCR models
TM06 5332 4615
L BLKBRWGRYN
Starting
capacitor
Run
capacitor
Relay
Brown
Grey
Power supply
earth conductor
Motor earth
conductor
Black
Black Brown Grey
Brown
Black

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Fig. 4 Connection of 1.5 and 2.2 kW SA-CSCR models
TM06 5333 4615
L BLKBRWGRYN
131
25
13
Starting
capacitor
Run
capacitor
Relay
Black
Grey
Brown
Black Brown Grey
Brown
Brown
Mains
overload
Black
Motor earth
conductor
Power supply
earth conductor
Auto
Start
overload

English (GB)
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3.3.3 Earthing
3.3.4 General recommendations
To prevent serious or fatal electric shock, proceed as follows:
• Connect the control box, all metal pipes, and the motor frame to the
power supply earth terminal using a copper wire.
• Comply with local electrical regulations. The earth conductor must at
least be the same size as the power supply wires.
• Permanently insulate all unused wire ends in the control box and other
equipment.
3.3.5 Protection
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply on the mains switch, not in the
control box, before working on or around control box, pipes,
cables, pump or motor.
- Install an earth conductor of at least the same size as the
submersible drop cable. Run the earth conductor as short a
distance as possible and fasten it securely to a true earth
connection, such as the submersible motor.
- Wear rubber gloves and boots and take care to connect metal
control boxes and motors to the power supply earth connection
or a steel pipe or casing extending into the well.
When installing the motor and the control box, include circuit and
component protection.
Only use the pump for pumping fresh groundwater. Do not use the
pump in swimming pools or marine areas.

English (GB)
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Overload protection
Tripping of the overload relay may be caused by short-circuited capacitor,
voltage supply problems, overloaded or locked pump or that the starting
relay needs to be replaced.
Reset the overload relay and make analysis to establish the tripping cause.
Remedy the cause of tripping and reset overload relay again.
4. Product introduction
SA CSIR, capacitor start induction run, and SA CSCR, capacitor start
capacitor run, are Grundfos control boxes for controlling Grundfos single-
phase, 3-wire submersible motors.
4.1 Approvals and marks
The control boxes have the following approvals, and the marks of approval
appear from the label on the front cover.
5. Servicing the product
Service must be performed by a qualified service engineer who is familiar
with local regulations.
Do not remove or leave out the overload protection as this may
lead to motor burnout.