Maintenance - Duco System C series User Manual

L1023004-D User manual for Duco's ventilation systems
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Maintenance

4A. General
A ventilation system must be maintained in order to maintain proper operation. Refer to the document
Onderhoudsinstructies Duco Ventilatiesystemen (L8000013) on www.duco.eu for detailed instructions.
4B. Battery-powered controller
The battery in a battery-powered controller lasts 3 to 5 years in normal use. Battery type: CR2430 – 3 V
Unscrew the controller from the wall and rotate the cover on the back to open it in order to replace the battery.
See also videos at duco.tv.
CR2430 – 3 V
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