Table Of Contents - Grundfos CRE Installation And Operating Instructions Manual

Original installation and operating instructions.
CONTENTS
1. Symbols used in this document - 7
2. General information - 7
3. General description - 7
3.1 Pumps without factory-fitted sensor - 7
3.2 Pumps with pressure sensor - 7
3.3 Settings - 7
4. Mechanical installation - 7
4.1 Motor cooling - 7
4.2 Outdoor installation - 7
5. Electrical connection - 7
5.1 Electrical connection - single-phase pumps - 8
5.1.1 Preparation - 8
5.1.2 Protection against electric shock - indirect contact - 8
5.1.3 Backup fuses - 8
5.1.4 Additional protection - 8
5.1.5 Motor protection - 8
5.1.6 Protection against mains voltage transients - 8
5.1.7 Supply voltage and mains - 8
5.1.8 Start/stop of pump - 8
5.1.9 Connections - 9
5.2 Electrical connection - three-phase pumps,
0.75 - 7.5 kW - 9
5.2.1 Preparation - 9
5.2.2 Protection against electric shock - indirect contact - 9
5.2.3 Backup fuses - 9
5.2.4 Additional protection - 9
5.2.5 Motor protection - 10
5.2.6 Protection against mains voltage transients - 10
5.2.7 Supply voltage and mains - 10
5.2.8 Start/stop of pump - 10
5.2.9 Connections - 10
5.3 Electrical connection - three-phase pumps, 11-22 kW - 11
5.3.1 Preparation - 11
5.3.2 Protection against electric shock - indirect contact - 11
5.3.3 Backup fuses - 11
5.3.4 Additional protection - 11
5.3.5 Motor protection - 11
5.3.6 Protection against mains voltage transients - 11
5.3.7 Supply voltage and mains - 11
5.3.8 Start/stop of pump - 12
5.3.9 Connections - 12
5.4 Signal cables - 13
5.5 Bus connection cable - 13
5.5.1 New installations - 13
5.5.2 Replacing an existing pump - 13
6. Modes - 13
6.1 Overview of modes - 13
6.2 Operating mode - 13
6.3 Control mode - 14
6.3.1 Pumps without factory-fitted sensor - 14
6.3.2 Pumps with pressure sensor - 14
7. Setting up the pump - 14
7.1 Factory setting - 14
8. Setting by means of control panel - 14
8.1 Setting of operating mode - 14
8.2 Setpoint setting - 15
8.2.1 Pump in control mode controlled (pressure control) - 15
8.2.2 Pump in control mode uncontrolled - 15
9. Setting by means of R100 - 15
9.1 Menu OPERATION - 17
9.1.1 Setpoint - 17
9.1.2 Operating mode - 17
9.1.3 Fault indications - 17
9.1.4 Fault log - 18
9.2 Menu STATUS - 18
9.2.1 Actual setpoint - 18
9.2.2 Operating mode - 18
9.2.3 Actual value - 18
9.2.4 Speed - 18
9.2.5 Power input and power consumption - 19
9.2.6 Operating hours - 19
9.2.7 Lubrication status of motor bearings (only 11-22 kW) - 19
6
9.2.8 Time till relubrication of motor bearings
(only 11-22 kW) - 19
9.2.9 Time till replacement of motor bearings
(only 11-22 kW) - 19
9.3 Menu INSTALLATION - 19
9.3.1 Control mode - 19
9.3.2 Controller - 19
9.3.3 External setpoint - 20
9.3.4 Signal relay - 20
9.3.5 Buttons on pump - 21
9.3.6 Pump number - 21
9.3.7 Digital input - 21
9.3.8 Stop function - 21
9.3.9 Flow limit for the stop function (only 11-22 kW) - 22
9.3.10 Sensor - 22
9.3.11 Duty/standby (only three-phase pumps) - 23
9.3.12 Operating range - 23
9.3.13 Motor bearing monitoring (only 11-22 kW) - 23
9.3.14 Confirming relubrication/replacement of motor bearings
(only 11-22 kW) - 23
9.3.15 Standstill heating (only 11-22 kW) - 23
10. Setting by means of PC Tool E-products - 24
11. Priority of settings - 24
12. External forced-control signals - 25
12.1 Start/stop input - 25
12.2 Digital input - 25
13. External setpoint signal - 25
14. Bus signal - 26
15. Other bus standards - 26
16. Indicator lights and signal relay - 26
17. Insulation resistance - 27
18. Emergency operation (only 11-22 kW) - 28
19. Maintenance and service - 29
19.1 Cleaning of the motor - 29
19.2 Relubrication of motor bearings - 29
19.3 Replacement of motor bearings - 29
19.4 Replacement of varistor (only 11-22 kW) - 29
19.5 Service parts and service kits - 29
20. Technical data - single-phase pumps - 29
20.1 Supply voltage - 29
20.2 Overload protection - 29
20.3 Leakage current - 29
20.4 Inputs/outputs - 29
21. Technical data - three-phase pumps, 0.75 - 7.5 kW - 30
21.1 Supply voltage - 30
21.2 Overload protection - 30
21.3 Leakage current - 30
21.4 Inputs/output - 30
22. Technical data - three-phase pumps, 11-22 kW - 30
22.1 Supply voltage - 30
22.2 Overload protection - 30
22.3 Leakage current - 30
22.4 Inputs/output - 31
22.5 Other technical data - 31
23. Disposal - 32
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.