Grundfos CU 362 Instrucciones De Instalación Y Funcionamiento página 4

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Hazard statements . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Scope of these instructions . . . . . . . . . . . . . . . . . . . 5
3. Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Type key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Installation preparation . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.3 EMC and earthing . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.4 Schematic system overview . . . . . . . . . . . . . . . . . . . . 9
5. Standard configuration . . . . . . . . . . . . . . . . . . . . . 11
5.1 CU 362 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2 IO 351B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.3 Float switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4 Float switch connection . . . . . . . . . . . . . . . . . . . . . . 15
5.5 Analog level sensors . . . . . . . . . . . . . . . . . . . . . . . 16
5.6 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6. Commissioning the product . . . . . . . . . . . . . . . . . . 18
6.1 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Taking Dedicated Controls out of operation . . . . . . . . . . 18
6.3 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.4 I/O settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.5 Electrical overview . . . . . . . . . . . . . . . . . . . . . . . . . 25
7. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1 CU 362 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8. Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.1 Pumps do not run when started . . . . . . . . . . . . . . . . . 28
8.2 Pumps start, but stop immediately . . . . . . . . . . . . . . . 28
8.3 Pump performance unstable . . . . . . . . . . . . . . . . . . . 28
8.4 Pumps are running, but deliver no water . . . . . . . . . . . 28
8.5 Pumps start and stop frequently. . . . . . . . . . . . . . . . . 28
9. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.1 Environmental data . . . . . . . . . . . . . . . . . . . . . . . . 29
9.2 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . 29
9.3 Electrical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10. Disposing of the product . . . . . . . . . . . . . . . . . . . . 29
11. Document quality feedback . . . . . . . . . . . . . . . . . . 29
4
1. General information
Read this document before you install the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
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.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the 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 explosion-proof 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.