General Information; Hazard Statements; Notes; Installing The Product - Grundfos CU 301 Notice D'installation Et De Fonctionnement

2. General information

2.1 Hazard statements

The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
WARNING
Indicates a hazardous situation which, if
not avoided, could result in death or
serious personal injury.
CAUTION
Indicates a hazardous situation which, if
not avoided, could result in minor or
moderate personal injury.
The hazard statements are structured in the
following way:
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.

2.2 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.

3. 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 grounding and protection
according to local and national codes.
- The electrical connection must be
carried out by an authorized electrician.

3.1 Mechanical installation

You can install CU 301 both indoors and outdoors.
The control unit must not be exposed to direct
sunlight.
3.1.1 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.
4 . 1 1 "
(104.5)
Fig. 1 Dimensions
4 . 1 1 "
(104.5)
5