English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operation instructions
describe Grundfos CU 323.
Sections 1-2 give the information necessary to be
able to install the product in a safe way.
Sections 3-9 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 Target group
These installation and operating instructions are
intended for professional installers.
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:
1.2.2 Other important notes
1. General information
2
1.1 Target group
2
1.2 Symbols used in this document
2
2. Installing the product
3
2.1 Location
3
2.2 Mechanical installation
3
2.3 Electrical installation
4
3. Product introduction
5
3.1 Product description
5
3.2 User interface
5
3.3 Layout of the back of CU 323
8
3.4 Identification
8
4. Control functions
9
4.1 Functions of indicator lights and relays
9
5. Operating the product
10
5.1 Local mode, external stop not activated
10
5.2 Local mode, external stop activated
10
5.3 Remote-controlled, external stop not
activated
11
5.4 Remote-controlled, external stop activated
12
5.5 Adjusting the proportional pressure
setpoint
12
6. Servicing the product
13
6.1 Maintaining the product
13
6.2 Repairing the product
13
6.3 Replacing the product
13
7. Fault finding the product
14
8. Technical data
16
8.1 Operating conditions
16
8.2 Mechanical data
16
8.3 Electrical data
16
8.4 Overview of inputs and outputs
18
8.5 Dimensions
19
9. Disposing of the product
19
Read this document before installation.
Installation and operation must comply
with local regulations and accepted codes
of good practice.
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.
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.
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