Product Introduction; Product Description; Pumps Without Factory-Fitted Sensor - Grundfos CRE Notice D'installation Et De Fonctionnement

4. Turn the plastic cover 180 °.
Do not twist the cable more than 90 °.
Fig. 24 Turning the plastic cover
5. Position the plastic cover correctly on the four rubber pins (C).
Make sure that the locking tabs (A) are placed correctly.
Fig. 25 Positioning the plastic cover
6. Fit the terminal box cover, and make sure that it is also turned
180 ° so that the buttons on the control panel are aligned with
the buttons on the plastic cover.
7. Tighten the four screws (TX25) with 5 Nm.
Fig. 26 Fitting the terminal box cover

5. Product introduction

5.1 Product description

Grundfos E-pumps are fitted with frequency-controlled
permanent-magnet motors for single-phase or three-phase power
supply connection.

5.1.1 Pumps without factory-fitted sensor

The pumps have a built-in PI controller and can be set for an
external sensor enabling the control of the following parameters:
• constant pressure
• constant differential pressure
• constant temperature
• constant differential temperature
• constant flow rate
• constant level
• constant curve
• constant other value.
The pumps have been factory-set to constant-curve control
mode. You can change the control mode with R100 or Grundfos
GO.
5.1.2 Pumps with factory-fitted pressure sensor
The pumps have a built-in PI controller and are set for a pressure
sensor enabling the control of the outlet pressure.
The pumps have been factory-set to constant-pressure control
mode. The pumps are typically used to keep a constant pressure
in variable-demand systems.
5.1.3 Settings
The description of settings applies both to pumps without
factory-fitted sensor and to pumps with a factory-fitted pressure
sensor.
Setpoint
You can set the desired setpoint in three ways:
• on the pump control panel
• via an input for external setpoint signal
• with the Grundfos wireless R100 remote control or Grundfos
GO.
Other settings
Make all other settings with R100 or Grundfos GO.
You can read important parameters, such as the actual value of
the control parameter and power consumption, via R100 or
Grundfos GO.
If special or customized settings are required, use Grundfos PC
Tool. Contact your local Grundfos company for more information.
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