Zehnder Rittling ComfoAir Q 350 ST, User Manual

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26 - EN
5.2 Clean the valves
Clean any valve present in your home at least
every six months.
1. Keep hold of the valve on its outer edge and
pull it completely out of the wall or ceiling with a
rotating movement.
If a rubber ring is fitted: Take care when removing
the valve to leave the rubber ring in place.
2. Mark the location an setting of the valve.
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Do not change the settings of the valve as
it would negatively influence the system
performance;
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Do not swap the valves with one another
as it will negatively influence the system
performance;
3. Remove the filter behind the valve (if present).
4. Clean the valve with a soft brush, vacuum cleaner
or soapy water.
5. Rinse the valve well and dry.
6. Replace the filter behind the valve (if present).
7. Place the valve back in the wall or ceiling.
5.3 Clean the grilles
Clean any grille present in your home at least
every six months.
1. Keep hold of the grille on its outer edge and
pull it completely out of the wall or ceiling (if not
screwed down).
2. Clean the grille with a soft brush or vacuum
cleaner.
3. Clean the filter behind the grille (if present) with
soft brush or vacuum cleaner.
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Do not remove the foam behind the grille (if
present) as it would negatively influence the
system performance.
4. Place the grille back in the wall or ceiling.
5.4 Clean the operating device
Clean any operating device present in your home at
least every six months. Use a dry duster or vacuum
cleaner to remove the dust. Do not use water or
any other liquid. Start the child lock on the display,
to prevent any changes to the settings caused by
accidentally pressing the buttons.
5.5 Fill the condensation drain
The condensation drain is connected to the domestic
waste-water system. To prevent sewer smells from
entering your home, the water seal of the domestic
waste-water system must always contain water. You
can achieve this by pouring a cup of water into the
water seal.