3
CAUTION: When a text bears this symbol, it means that personal injury or serious dam-
age to the equipment may follow if the instructions are not followed.
NB: When a text bears this symbol, damage to equipment or a poor utilisation ratio may
be the consequence of not following the instructions.
1 Safety
CAUTION
Check that the unit is dead before opening it for service or maintenance
• Only personnel with the relevant technical skills may perform maintenance work
• The switch for all-pole breaking must be off when the inspection doors are opened and all
rotating parts must have stopped
• Use the unit’s service switch to stop the unit. Units with electric heating batteries must run for
3 minutes before stopping so that the battery is cooled down
• Check that the doors are properly closed after service has been performed
• If open bosses or short duct(s) are used, the fans must be protected with protective grids
1.1 Symbols Used
This product has a number of symbols that are used to label the product itself and in the installation and user docu-
mentation. Here is an explanation of some of the commonest symbols.
EXTRACT AIR
OUTDOOR AIR
SUPPLY AIR
EXHAUST AIR
HEATING THERMOSTAT
DANGER! ELECTRICITY
DANGER! DO NOT TOUCH
DRAINAGE OUTLET
MOISTURE ROD
INSTALLATION
SUPPLY AIR SENSOR
B1
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