Duco L8000013 Operating and maintenance instructions

1
L8000013-B 08.06.2022
Maintenance Instructions for
DUCO Ventilation Systems
L8000013
Table of contents
A. Maintenance overview�������������������������������������������� 2
B. Window ventilators������������������������������������������������������ 3
B.1Maintenance frequency������������������������������������������������������������ 3
B.2How to clean������������������������������������������������������������������������������������ 4
Window ventilators with a removable insect-
repellent inside grille����������������������������������������������������������������� 4
Window ventilators without a removable insect-
repellent inside grille����������������������������������������������������������������� 4
DucoFit 50 ‘SR’ / EasyFit 50 ‘SR’����������������������������������������� 4
DucoTop 60 ‘SR’ / TronicTop 60 �������������������������������������������� 4
Electronically controlled window ventilators ��������������� 5
Window ventilators with integrated solar
shading blind����������������������������������������������������������������������������������� 5
C. Exhaust vents������������������������������������������������������������������������ 6
C.1Maintenance frequency������������������������������������������������������������ 6
C.2How to clean������������������������������������������������������������������������������������ 6
DucoVent Design��������������������������������������������������������������������������� 6
DucoVent Basic������������������������������������������������������������������������������ 6
D. Central extract unit����������������������������������������������������� 7
D.1Maintenance frequency������������������������������������������������������������ 7
D.2How to carry out check-ups �������������������������������������������������� 7
D.3How to clean������������������������������������������������������������������������������������ 8
DucoBox Silent������������������������������������������������������������������������������� 8
DucoBox Focus ������������������������������������������������������������������������������ 8
E. Heat Recovery Ventilation System ������ 9
E.1Maintenance frequency������������������������������������������������������������ 9
E.2How to replace filters���������������������������������������������������������������� 9
E.3How to clean the casing���������������������������������������������������������10
E.4How to carry out check-ups ������������������������������������������������10
F. Ventilation ducts���������������������������������������������������������� 11
F.1Maintenance frequency����������������������������������������������������������11
G. Control components����������������������������������������������� 11
G.1Maintenance frequency����������������������������������������������������������11
H. Kitchen Box�������������������������������������������������������������������������� 11
H.1Maintenance frequency����������������������������������������������������������11
H.2How to clean����������������������������������������������������������������������������������11
I. In general�������������������������������������������������������������������������������� 12
L8000013-onderhoudsinstructies-DUCO-ventilatiesystemen-(en)-DRUK
Maintenance-instructions-DUCO-ventilation-systems-(en)

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L8000013 – Maintenance instructions for Duco Ventilation systems
Always ensure that before maintenance work begins, the device is isolated from the mains supply
by removing the power cord from the wall socket or by switching off the fuse� Check by measure-
ment that this is actually the case�
A. Maintenance overview
WINDOW VENTILATOR
Every 6 months in
rural area, every 2
months in other areas
VENTILATION
DUCTS
Every 3-4 years
(after 6 months with
new construction)
Every 6 years
Every 2 months
ROOM OPERATIONG UNIT
Maintenance-free
Every 2 months
KITCHEN BOX
INSTALLER RESIDENT
The colour indicates who should carry out which maintenance

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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 (www.duco.eu)�
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�
»Cleaning twice a year is sufficient in rural surroundings�
»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
»Annually for non-residential buildings
»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�

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L8000013 – Maintenance instructions for Duco Ventilation systems
B.2 How to clean
Window ventilators with a removable insect-repellent inside grille
• Set the ventilation flap to the fully open position using the control (lever or crank)�
• Take the removable insect-repellent inside grille off by hand�
• Clean the removable inside grille with a vacuum cleaner and then with a damp cloth (soap and water (e�g� a general-pur-
pose cleaner))�
• Fouling on the inside, including the ventilator flap or the rotary barrel mechanism, of the window ventilator is best
removed by sucking out or cleaning using a vacuum cleaner, brush or duster/damp cloth� Carefully check also for fouling
that may have accumulated in the corners� If so, remove it as well�
• Put the inside grille back on the window ventilator�
Window ventilators without a removable insect-repellent inside grille
• Set the ventilation flap to the fully open position using the control (lever or crank)�
• Fouling on the inside of the window ventilator, including on the ventilator flap, is best removed by sucking out or cleaning
using a vacuum cleaner, brush or (damp) cloth�
• Carefully check also for fouling that may have accumulated in the corners� If so, remove it as well�
DucoFit 50 ‘SR’ / EasyFit 50 ‘SR’
• Take the removable insect-repellant inside grille off by using a flat-blade screwdriver�
• Remove the left-hand and right-hand control�
• Remove the ventilation flap from the inside grille�
• Clean the removable inside grille and the gutter with a vacuum cleaner and then wipe out well with a damp cloth (soap
and water (e�g� a general-purpose cleaner))�
• Fouling on the inside of the window ventilator is best removed by sucking out or cleaning using a vacuum cleaner, brush
or (damp) cloth� Carefully check also for fouling that may have accumulated in the corners� If so, remove it as well�
• Put the ventilation flap correctly back into the inside grille�
• Reinstall the left-hand and right-hand controls correctly�
• Put the inside grille back on the window ventilator�
DucoTop 60 ‘SR’ / TronicTop 60
• Press setting 3 on the corresponding room sensor; the ventilation flap will open (TronicTop 60 only)�
For DucoTop 60 ‘SR’: Set the ventilation flap to the fully open position�
• Press the plastic end piece (left and right-hand side) inwards using a flat screwdriver�
• Take the removable insect-repellent inside grille off by hand�
»It is advisable to carry out this operation with 2 people if the length of thewindow ventilatoris over 1,500 mm�
• Clean the removable inside grille with a vacuum cleaner and then with a damp cloth (soap and water (e�g� a general-pur-
pose cleaner))�
• Fouling on the inside of the window ventilator is best removed by sucking out or cleaning using a vacuum cleaner, brush
or (damp) cloth� Carefully check also for fouling that may have accumulated in the corners� If so, remove it as well�
• Put the inside grille back on the window ventilator�

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L8000013 – Maintenance instructions for Duco Ventilation systems
Electronically controlled window ventilators
• Press setting 3 on the corresponding room sensor; the ventilation flap will open�
• Take the removable insect-repellent inside grille off by hand�
• Clean the removable inside grille with a vacuum cleaner and then with a damp cloth (soap and water (e�g� a general-pur-
pose cleaner))�
• Fouling on the inside of the window ventilator, including on the ventilator flap, is best removed by sucking out or clean-
ing using a vacuum cleaner, brush or (damp) cloth� Carefully check also for fouling that may have accumulated in the
corners� If so, remove it as well�
• Put the inside grille back on the window ventilator�
Window ventilators with integrated solar shading blind
• Ventilation section
»Set the ventilation flap to the fully open position using the control (lever or crank)�
»Take the removable insect-repellent inside grille off by hand�
»Clean the removable inside grille with a vacuum cleaner and then with a damp cloth (soap and water (e�g� a gen-
eral-purpose cleaner))�
»Fouling on the inside of the window ventilator, including on the ventilator flap, is best removed by sucking out or
cleaning using a vacuum cleaner, brush or (damp) cloth� Carefully check also for fouling that may have accumu-
lated in the corners� If so, remove it as well�
»Put the inside grille back on the window ventilator�
• Fabric blind
»If the fabric becomes wet due to an unexpected shower, you may simply roll up the blind, and then unroll it again
in better weather to allow it to dry� However, make sure not to keep the blind rolled up wet for more than 3 days to
prevent moulding and stains�
»Remove loose fouling first using a brush or vacuum cleaner before wiping�
»You can then remove the remaining dirt after using a cleaning agent and lukewarm water (special cleaning prod-
ucts are available from the installer)�
»Always rinse off the fabric after cleaning�
»Avoid cleaning in bright sunlight: if soapy water dries quickly, it can leave stains on the fabric� Do not use any
aggressive scouring agents�
• Lateral guides
(= maintenance of frame and arms)
»It is recommended that you should have the hinge pins, wheel shafts and bearings on your solar shading checked
once a year�
»DUCO recommends to clean your articulated arms (for the CAP version) using a damp sponge (soap and warm
water (e�g� a general-purpose cleaner))�
»Lubricate the pivoting or rotating components after cleaning your solar shading�
»A dry lubricant (Teflon spray) can be applied to plastic guide blocks and aluminum guide sections after cleaning�
»A dry lubricant (Teflon spray) needs to be applied to diagonal or horizontal sections in which guide blocks slide�
»Plastic sliding bearings can be lubricated using a dry lubricant (Teflon spray) after cleaning (remove twigs and
leaves)�

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L8000013 – Maintenance instructions for Duco Ventilation systems
C. Exhaust vents
Air is extracted from kitchens, bathrooms and toilets throughexhaust vents� These are usually vents incorporated in the
ceiling�
Take care not to change the setting and position of the valve control mechanism� Make sure that the vents are not inter-
changed, i�e� that they are put back in their original ventilation opening in the wall or ceiling� All this may affect the flow rate
and the proper functioning of the ventilation system�
C.1 Maintenance frequency
• As a resident, you need to carry out the inspection and cleaning yourself�
• Check the vents regularly (approximately once every 2 months) for fouling�
• Clean the vent with a damp cloth as soon as you notice any fouling�
C.2 How to clean
DucoVent Design
• Remove the aluminum finishing plate, which is attached with magnets, from the actual vent�
• The finishing plate can now be cleaned with a damp cloth (soap and water (e�g� a general-purpose cleaner))� Never im-
merse the aluminum finishing plate in water, so as to protect the magnets�
• Take the acoustic foam pack out of the vent� The foam can be cleaned using a vacuum cleaner� The plastic part with a
damp cloth�
• The inside of the duct can be cleaned with a vacuum cleaner�
• Place the acoustic foam pack back in the vent� Make sure that the foam is inserted up to the top of the ceiling section�
• Place the finishing plate back on the vent� It is attracted by the 4 magnets and positions itself�
DucoVent Basic
• For light fouling, wipe theexhaust ventsor window ventilators with a slightly damp cloth�
• If necessary, use a solution of a mild cleaner (washing-up liquid/general-purpose cleaner)�
• If there are heavy deposits of fouling, take theexhaust ventsout of the duct completely�
1� Take hold of the outer edge of the vent and pull it completely out of the wall or ceiling in a twisting movement�
2� Remove the foam rubber sealing strip�
3� Immerse theexhaust vents completely in a solution of general-purpose cleaner�
Exhaust vents can be cleaned in the dishwasher if necessary�
4� Wipe theexhaust ventsoff with a cloth or soft brush�
5� Dry theexhaust vents� Place the foam rubber sealing strip back onto theexhaust vent�
6� Place eachexhaust vent backinto its original duct�

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L8000013 – Maintenance instructions for Duco Ventilation systems
D. Central extract unit
D.1 Maintenance frequency
• Before (possibly) proceeding to clean your extract unit, as a resident, you need to inspect it to establish whether it is
necessary�
• Your central extract unit needs to be cleaned by an accredited installer�
• In a newbuild home, the DucoBox needs to be cleaned completely, i�e� including Box Sensors and Control Valves (if
present), after 6 months�
• After these 6 months, you will need to repeat this operation every 3 – 4 years, depending on the degree of fouling�
• If the central extract unit is used in combination with a cooker hood, then maintenance will be required more frequently
than indicated above� This will require additional maintenance, such as cleaning / replacing filters, the motor and the
Box Sensors plus Control Valves, if present�
• Technical maintenance of the DucoBox is not necessary�
D.2 How to carry out check-ups
1� Isolate the DucoBox�
2� Open the cover�
3� Unclip the extract unit plate in 4 places by releasing the 4 snap-ins with a flat screwdriver�
4� Do not touch the internal electronics�
5� The extract unit plate can then be removed from the casing�
6� Check the impeller for contamination� A small amount of fouling has little effect on the extract unit's performance� If the
fouling is more than 1 mm thick on the inside of the blades, we advise you to have them cleaned�
7� Check the bearings� You can do this by turning the impeller by hand�
8� Check the bearings for noise�
9� Check that the fan is not swinging�
10� When the fan is set in motion by hand, it only makes a few revolutions and then comes to a standstill with some jerks�
This is a characteristic of a DC extract unit and is therefore entirely normal�
11� Depending on the outcome of the inspection, the extract unit will need to be cleaned and/or prepared for use�
12� Clip the extract unit plate back into the casing�
13� Check to ensure it is positioned correctly and press hard�
14� Close the cover� Press well on the 4 corners�
15� Put the DucoBox under tension again�

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L8000013 – Maintenance instructions for Duco Ventilation systems
D.3 How to clean
DucoBox Silent
1� Isolate the DucoBox Silent�
2� Open the cover�
3� Remove the wiring from the extract unit plate and Box Sensor(s) connected, if present, by unclipping them from the
connector on the PCB�
4� Unclip the extract unit plate in 4 places by releasing the 4 snap-ins with a flat screwdriver�
5� Do not touch the internal electronics�
6� The extract unit plate can then be removed from the casing�
7� Clean the fan and the casing with a vacuum cleaner�
8� Under no circumstances clean the motor unit with water and definitely do not immerse it in water or any other deter-
gent�
9� The fan's volute can be cleaned with a damp cloth�
10� Dry the fan's volute with a dry cloth�
11� Clip the extract unit plate back into the casing�
12� Check to ensure it is positioned correctly and press hard�
13� Take the Box Sensors, if present, out of the casing and clean them with a vacuum cleaner or a dry cloth�
14� Put the Box Sensors back, if present, ensuring that each of them is connected to the correct room, in line with the nomi-
nal extract flow rate for each room�
15� Reconnect all the wiring�
16� Close the cover� Press well on the 4 corners�
17� Put the DucoBox Silent under tension again�
DucoBox Focus
1� Open the cover�
2� Note which duct is connected where� Label the ducts�
3� Press the button on each Control Valve, if present� The LED indicator lights up as a result and then dims�
4� Wait for 10 seconds while the Control Valves, if present, shut automatically�
5� Isolate the DucoBox Focus�
6� Remove the wiring from the extract unit plate and Control Valves connected, if present, by unclipping them from the
connector on the PCB�
7� Unclip the extract unit plate in 4 places by releasing the 4 snap-ins with a flat screwdriver�
8� Do not touch the internal electronics�
9� Clean the fan and the casing with a vacuum cleaner�
10� Under no circumstances clean the motor unit with water and definitely do not immerse it in water or any other deter-
gent�
11� The fan's volute can be cleaned with a damp cloth�
12� Dry the fan's volute with a dry cloth�
13� Clip the extract unit plate back into the casing�
14� Check to ensure it is positioned correctly and press hard�
15� Take the Control Valves, if present, out of the casing and clean them with a vacuum cleaner or a dry cloth�
16� Put the components back again, ensuring that each Control Valve, if present, is connected to the correct room, in line
with the nominal extract flow rate for each room�
17� Reconnect all the wiring�
18� Close the cover� Press well on the 4 corners�
19� Put the DucoBox Focus under tension again�

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L8000013 – Maintenance instructions for Duco Ventilation systems
E. Heat Recovery Ventilation System
E.1 Maintenance frequency
1� Cleaning must be done by an accredited installer�
2� In order to guarantee proper and safe operation, the DucoBox WTW must be (visually) checked and inspected at least
every 12 months by an accredited installer or service organisation�
3� The maintenance of the DucoBox WTW is limited to checking the fan once a year and for leaks on water-side parts�
4� The filter of the DucoBox WTW must be checked and/or replaced annually to ensure proper operation of the heat
recovery ventilation system� If the filter is not replaced every year, the dust particles will accumulate, which may cause
malfunctions�
5� Technical maintenance of the DucoBox WTW is not necessary�
6� When the DucoBox WTW is used in combination with a cooker hood where this cooker hood without motor is fitted to one
of the connections in the kitchen, the maintenance frequency will be higher than indicated above� This will require addi-
tional maintenance, such as cleaning / replacing filters and the motor� The maintenance frequency of the filter may then
have to be adjusted, due to a greater degree of fouling� If a cooker hood is connected to the ventilation system, the filter
needs to be replaced every 4 months� DUCO recommends installing a cooker hood with a motor and its own connection
to the outside�
E.2 How to replace filters
1� The filter must be replaced by the resident�
2� Filters cannot be cleaned�
»Manual cleaning with a vacuum cleaner can damage the fine structure of the filter� This also applies to washing
out the filters�
3� Replacing the filter
a� Open door
b� Replace filter
c� Close door

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L8000013 – Maintenance instructions for Duco Ventilation systems
E.3 How to clean the casing
1� Cleaning of the casing must be carried out by the resident�
2� Clean the casing of the heat recovery ventilation system only with a damp cloth (water and soap (e�g� an all-purpose
cleaner))�
3� 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), that can affect the paintwork or plastic parts�
E.4 How to carry out check-ups
1� Check-up must be done by an accredited installer�
2� Isolate the DucoBox WTW�
3� Open the door�
4� Loosen the screw completely, releasing the control panel�
5� Loosen the other 5 screws half way, so that the aluminum plate can be pushed upwards�
6� Check the proper functioning of the heat recovery ventilation system�
7� Carry out a visual check towards the water-side to see if there are any leaks�
8� Check that the water on the plate under the evaporator can drain properly to the siphon� Make sure the hole is free of
dirt or other obstructions�
9� Check the fan and evaporator for fouling� A small amount of fouling has little effect on the extract unit's and the evapo-
rator's performance� If the fouling is more than 1 mm thick , we advise you to have them cleaned�
10� Check the bearings� You can do this by turning the impeller by hand�
11� Check that the bearings do not make noise and that no resonance occurs�
12� Check that the fan is not swinging�
13� When the fan is set in motion by hand, it only makes a few revolutions and then comes to a standstill with some jerks�
This is a characteristic of a DC extract unit and is therefore entirely normal�
14� Depending on the outcome of the inspection, the extract unit will need to be cleaned and/or prepared for use�
15� Check that there are no air leaks�
16� Check the central heating water pressure and top up if necessary� See installation manual DucoBox WTW�
17� Close the cover�
18� Put the DucoBox WTW under tension again�
19� Check that no error messages appear on the display�
20� Check that the DucoBox WTW does not make any noise and that no resonance occurs�
21� In case of leaks or other repairs, please contact your supplier�

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L8000013 – Maintenance instructions for Duco Ventilation systems
F. Ventilation ducts
F.1 Maintenance frequency
• Your ventilation ducts need to be cleaned by an accredited installer�
• The contamination of the existing ventilation ducts can sometimes take on serious forms� It is therefore necessary to
clean the ducts on a regular basis, approximately once every 6 years� This can of course differ from situation to situation,
depending on the extent of fouling�
G. Control components
G.1 Maintenance frequency
• Operating and control components require no maintenance during their service life� However, operation may be impaired
by air slot fouling� Therefore, as a resident, regularly remove the dust from the casing with a dry duster or with a vacuum
cleaner if necessary�
• DUCO recommends a 3-yearly maintenance of its ventilation system control components by an accredited installer�
H. Kitchen Box
As a resident, you need to carry out the inspection and cleaning yourself�
H.1 Maintenance frequency
Check the Kitchen Box (and valves) regularly (approximately once every 2 months) for fouling�
H.2 How to clean
• Remove the inspection hatch by hand�
• Clean the removable inspection hatch with a vacuum cleaner and then with a damp cloth (soap and water (e�g� a gener-
al-purpose cleaner))�
• Clean the Kitchen Box with a damp cloth as soon as you notice any fouling� Attention: the IAV valve is a 24V fed item�
• Take care not to change the setting and position of the valve control mechanism and the throttle valve� If more than one
valve has been mounted on the Kitchen Box , make sure that the valves are not interchanged and that they are therefore
placed back in the original ventilation opening in the Kitchen Box� All this may affect the flow rate and the proper func-
tioning of the ventilation system�
• Fouling on the inside, including on the throttle valve of the Kitchen Box, is best removed by sucking out or cleaning using
a vacuum cleaner, brush or (damp) cloth� Carefully check also for fouling that may have accumulated in the corners� If
so, remove it as well�
• The inside of the duct can be cleaned with a vacuum cleaner�
• Put the removable inspection hatch back onto the Kitchen Box�

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L8000013 – Maintenance instructions for Duco Ventilation systems
I. In general
For more information, please contact:
DUCO Ventilation & Sun Control
Handelsstraat 19 – 8630 Veurne (Belgium)
Phone: +32//58/33�00�33
E-mail: [e-mail] / [e-mail]
Website: www.duco.eu