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L8000013 –
Maintenance instructions for Duco Ventilation systems
B. Window ventilators
Window ventilators require little maintenance, but to enjoy year-round use of your window ventilators, optimum operation
and healthy indoor air quality, we would advise the following�
• Window ventilators can be cleaned very quickly and easily for optimum ventilation�
• Failure to carry out these maintenance operations may result in the control malfunctioning or failing to operate at all�
• You are strongly advised against the use of abrasives (e�g� sandpaper or scouring pads), pressure washers and harsh
cleaners (e�g� solvents or ammonia)�
• You will find a number of maintenance videos on the DUCO website (
)�
B.1 Maintenance frequency
• Check the window ventilators regularly (approximately once every 2 months) for fouling� You will need to clean the win-
dow ventilators in case of fouling�
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Cleaning twice a year is sufficient in rural surroundings�
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If you live in an urban environment, next to an industrial area or on the coast, you will need to clean your window
ventilators 6 times a year�
• Hinged or rotating parts need to be lubricated annually� Use a dry lubricant for this (Teflon spray)�
• Window ventilators with fabric solar shading: As the manufacturer, we recommend regular technical check-ups on your
system by the installer
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Annually for non-residential buildings
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Every 4 years for domestic solar shading
• For electronically controlled window ventilators: Regularly inspect the wiring for damage� Changes to the electrical part
may only be carried out following the manufacturer’s approval�
