Grundfos Hydro Multi-E Series User Manual

Hydro Multi-E
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

Grundfos Hydro Multi-E Series Specifications

General

Control Type	Variable Speed
Motor Efficiency	IE3
Controller	CU 352
Enclosure Class	IP54
Series	Hydro Multi-E
Frequency	50/60 Hz
Protection Class	IP54
Weight	Varies by model
Communication	Modbus
Application	Water Supply, Pressure Boosting
Liquid Temperature	0°C to +60°C
Material	Stainless Steel

Summary

1. Symbols Used in this Document

1.1 Warnings Against Hazards

Details DANGER, WARNING, CAUTION symbols and their meaning.

3. Receiving the Product

3.4 Handling and Lifting the Product

Provides safety instructions for handling and lifting the booster system.

6. Installation

6.2 Mechanical Installation

Details the steps for connecting pipes and securing the system mechanically.

6.4 Electrical Installation

6.4.1 Protection Against Electric Shock

Details safety measures for electrical installation and protection.

6.5 Mains Supply

6.6 Additional Protection

6.6.1 Systems with Single-Phase Motors

Details protection requirements for single-phase motor systems.

6.6.2 Systems with Three-Phase Motors

Details protection requirements for three-phase motor systems.

6.7 Connection Terminals

6.7.1 CRE, CRIE and CRNE Pumps

Details the inputs and outputs for CRE, CRIE, and CRNE pumps.

6.7.2 CME Pumps

7. Optional Bus Communication

7.1 Installing a Communication Interface Module

Step-by-step guide for installing a CIM module.

9. Startup

9.2 Positive Inlet Pressure

Details startup steps for systems with positive inlet pressure.

9.3 Without Inlet Pressure

10. User Interfaces

10.1 Standard Control Panel

Describes the standard control panel and its functions.

10.1.1 Setpoint Setting

10.1.2 Start or Stop the System

10.2 Advanced Control Panel

11. Multimaster Function

11.1 Two or More Outlet-Pressure Sensors

12. System Functions

12.1 Settings

12.2 Operating Mode

Explains the different operating modes of the booster system.

12.3 Control Mode

12.3.1 Constant Pressure

Details the constant pressure control mode using a pressure sensor.

12.4 Pipe-Filling Function

12.5 Stop Function

12.6 Controller

12.8 Limit-Exceeded Function

12.9 Proportional Pressure

13. Pump Functions

13.1 Analog Inputs

Describes the configuration and functions of analog inputs.

13.2 Pt100/1000 Inputs

13.3 Digital Inputs

13.4 Digital Inputs/Outputs

13.5 Signal Relays

13.6 Analog Output

13.7 External Setpoint Function

13.7.1 Setpoint Influence Functions

13.8 Predefined Setpoints

13.11 Multi-Pump Setup

14. Setting the Product

14.1 Setting by Means of Pumps

14.1.1 Radio Communication

14.2 Setting by Means of Grundfos GO Remote

15. Protective Functions

15.1 Dry-Running Protection

Details methods to protect the system from dry running.

16. Priority of Settings

18. Signal Relays

19. Digital Input

21. Maintenance

23. Startup After Standstill

24. Fault Finding

25. Technical Data: Single-Phase Pumps

25.1 Supply Voltage

25.2 Leakage Current

26. Technical Data: Three-Phase Pumps

26.1 Supply Voltage

26.2 Leakage Current

27. Operating Conditions

27.1 Temperatures

27.2 Installation Altitude

27.5 Minimum Inlet Pressure

Explains how to calculate the minimum inlet pressure required to avoid cavitation.

27.7 Minimum Flow Rate

28. Inputs and Outputs

29. Factory Settings