Grundfos SA Series Manuale utente

GRUNDFOS INSTRUCTIONS

SA-CSIR, SA-CSCR

Control box

Installation and operating instructions

English (GB)

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)

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)

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)

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)

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

Grey

Black

Green

Relay

Neutral Line

English (GB)

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

Brown

Grey

Brown

Black

English (GB)

Fig. 4 Connection of 1.5 and 2.2 kW SA-CSCR models

TM06 5333 4615

L BLKBRWGRYN

131

Starting

capacitor

Run

capacitor

Relay

Black

Grey

Brown

Black

Brown

Grey

Brown

Mains

overload

Black

Motor earth

conductor

Power supply

earth conductor

Auto

Start

overload

English (GB)

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)

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.

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