Symbols Used In This Document; Handling - Grundfos CR Serie Instrucciones De Instalación Y Funcionamiento

English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
1. Symbols used in this document
2. Handling
3. Type designation
3.1 Type key for CR, CRI, CRN 1s, 1, 3, 5, 10, 15 and 20
3.2 Type key for CR, CRN 32, 45, 64, 90, 120 and 150
4. Applications
5. Technical data
5.1 Ambient temperature and altitude
5.2 Liquid temperature
5.3 Maximum permissible operating pressure and liquid
temperature for the shaft seal
5.4 Minimum inlet pressure
5.5 Minimum inlet pressure
5.6 Minimum flow rate
5.7 Electrical data
5.8 Frequency of starts and stops
5.9 Dimensions and weights
5.10 Sound pressure level
6. Installation
6.1 Foundation
6.2 Vibration dampening
6.3 Outdoor installation
6.4 Hot or cold surfaces
6.5 Torques
6.6 Flange forces and torques
7. Electrical connection
7.1 Cable entry/screwed connection
7.2 Three-phase connection
7.3 Single-phase connection
7.4 Terminal box positions
7.5 Frequency converter operation
8. Startup
8.1 Shaft seal run-in
9. Maintenance
10. Frost protection
11. Service
11.1 Service kits and manuals
12. Fault finding
13. Disposing of the product
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.

1. Symbols used in this document

Warning
Page If these safety instructions are not observed, it may
result in personal injury.
5
5
Warning
6
If these instructions are not observed, it may lead to
6
electric shock with consequent risk of serious
6
personal injury or death.
6
6
Warning
6
The surface of the product may be so hot that it may
7
cause burns or personal injury.
7
If these safety instructions are not observed, it may
Caution
7
result in malfunction or damage to the equipment.
7
8
Notes or instructions that make the job easier and
Note
8
ensure safe operation.
8
8

2. Handling

8
When lifting the entire pump with motor, follow these instructions:
8
• Pump with motor sizes 0.37 - 5.5 kW:
9
Lift the pump in the motor flange by means of straps or the
10
like.
10
• Pump with motor sizes 7.5 - 22 kW:
10
Lift the pump by means of the motor eyebolts.
10
11 • Pump with motor sizes 30-45 kW:
Lift the pump by means of the lifting brackets on the motor
12
flange.
12
• Pump with motor sizes 55-75 kW:
12
Lift the pump by means of the eyebolts on the motor side.
13
13
13
14
14
14
15
15
15
16
16
0.37 - 5.5 kW
Fig. 1 Correct lifting of a CR pump
In case of CR, CRI and CRN pumps with other motors than MG or
Siemens, we recommend that you to lift the pump by means of
the straps in the motor flange.
Warning
Make sure that the pump remains in a stable position
during unpacking and installation by means of the
straps used for lifting the pump.
Note that typically the centre of gravity of the pump is
close to the motor.
7.5 - 22 kW 30-45 kW 55-75 kW
5