Grundfos CUE Series Product Guide

Grundfos CUE
8
Applications
Overview applications
The CUE is a multi-purpose frequency converter suita-
ble for a variety of applications demanding reliable and
cost-
efficient pump operation.
The CUE is used in five main fields of application:
Water supply and pressure boosting
Besides general water supply in municipal and indus-
trial waterworks, the CUE is used for these specific
applica
tions:
• water supply
• pressure boosting
• washing.
The typical control modes are constant pressure, con-
stant flow rate. Stop functions are used to stop the
pump when low or no flow is detected.
Heating and air-conditioning
Liquid transfer in:
• heating applications
• cooling and air-conditioning applications.
The typical control modes are proportional pressure or
constan
t temperature.
Process and sanitary applications
Liquid transfer in:
• breweries and dairies
• pure-water applications
• process applications
• purification applications.
The CUE is typically controlled by an external control-
ler. The typical control mode is Open loop.
Groundwater
Typical applications:
• groundwater supply to waterworks
• irrigation in horticulture and agriculture
• dewatering.
The typical control modes are constant pressure, con-
stant flow rate or constant level control.
Wastewater
Transfer of:
• wastewater
• effluent
• drainage water
• process water.
The typical control mode is constant level function
(empt
ying function).
TM03 0146 4204TM03 0147 4204TM03 0148 4204TM03 0149 4204TM04 0223 5107

Grundfos CUE Series Specifications

General

Category	DC Drives
Output Voltage	24 V DC
Control Signal	0-10 V, 4-20 mA
Communication	Modbus RTU
Protection Features	Overvoltage, overcurrent, overtemperature, short circuit
Humidity	5% to 95% (non-condensing)
Enclosure class	IP20
Enclosure Rating	IP20