Hazard Statements; Notes; Applications - Grundfos IO 50 SQFlex Installation And Operating Instructions Manual

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 per-
sonal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the 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.
FM
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 equip-
ment.
Tips and advice that make the work easier.

3. Applications

The IO 50 SQFlex switch box is made for solar-powered SQFlex systems and is an on/off switch for the
system power supply.
In addition, the IO 50 functions as a connection point for all necessary cables.
By means of the on/off switch, it is possible to
• start/stop the pump
• reset alarms.
All installations must comply with local or National Electrical Codes (NEC article 690, Solar Photovoltaic
Systems).
5