Notes; Installing The Product; Mechanical Installation - Grundfos CU 301 Instrucciones De Instalación Y Funcionamiento

1.2 Notes

The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
Observe these instructions for explosion-
proof products.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.

2. Installing the product

DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the product,
make sure that the power supply has
been switched off and that it cannot be
accidentally switched on.
- Use the recommended fuse size.
- Check that the supply voltage
corresponds to the values stated on the
nameplate.
- The user or the installer is responsible
for correct earthing and protection
according to local regulations.
4

2.1 Mechanical installation

You can place CU 301 both indoors and outdoors.
The control unit must not be exposed to direct
sunlight.
2.1.1 Mounting CU 301
CU 301 is designed for wall mounting.
The box has six mounting holes (∅4). See fig. 1. The
dimensions are in mm.
CU 301 must be mounted as follows:
• Horizontally to allow condensed water, if any, to
escape. See fig. 1
On a plane surface to avoid deformation of the box.
104.5
Fig. 1
CU 301 is supplied with special gaskets for the Pg
cable entries. The special gaskets are suitable for
flat cables and single-core cables.
104.5