Duco DucoBox Focus User manual

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
Installation guide
ENGLISH
DucoBox Focus
Product version 17xxxx and above
L2000631 (Revision K | 13.07.2020)
Step by step
instructions
duco.tv

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
Table of contents
01 Introduction............................................................................................................ 3
02 Product sheet ........................................................................................................ 4
03 Fitting ....................................................................................................................... 7
03.A Position ........................................................................................................... 7
03.B Fixing................................................................................................................ 7
03.C Air duct connections................................................................................... 7
04 Wiring....................................................................................................................... 8
04.A Connector & buttons .................................................................................. 8
04.B Cabling diagram........................................................................................... 8
05 Control valves........................................................................................................ 9
05.A Mounting the control valves..................................................................... 9
05.B Pairing the control valves .......................................................................10
05.C Removing / replacing a control valve..................................................10
05.D LED indications...........................................................................................10
06 Additional control options...............................................................................11
06.A Communication Print...............................................................................11
07 Electronical installation ..................................................................................12
07.A Installer / User mode ...............................................................................12
07.B LED indications DucoBox Focus...........................................................12
07.C Pairing components..................................................................................12
07.D Removing / replacing components......................................................14
07.E Tips .................................................................................................................14
08 Air calibration......................................................................................................15
08.A Air calibration procedure for DucoBox Focus..................................15
08.B Checking.......................................................................................................16
09 Maintenance & service.....................................................................................17
10 Warranty................................................................................................................17
Vero Duco - Handelsstraat 19 - 8630 Veurne - Belgium
tel [phone] - fax [phone] - [e-mail] - www.duco.eu
DUCO, HANDELSSTRAAT 19
VEURNE, B8630
09
See www.duco.eu for information regarding warranty, maintenance, technical data, etc.
Installation, connection, maintenance and repairs are to be carried out by an accredited installer. The electronic components of this product may be live. Avoid
contact with water.
Translation of the original instructions

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
Master
Slave
01 Introduction
Congratulations on your DucoBox Focus, the smartest box in Europe! The DucoBox Focus performs two functions in a Duco De-
mand-Controlled Natural Ventilation System:
On the one hand it is the extractor fan that exhausts contaminated air with excessive CO2content or relative humidity. Thanks to
integrated control valves, air is only exhausted in the zone that requires it.
On the other hand it is the system master or brain of the system. It receives and interprets signals from slave components (meas-
urements from sensors or manual input), on the basis of which it controls the ventilation system.
It is inadvisable to connect the DucoBox (via a duct or directly) to an extractor hood, regardless of type. This usually causes exces-
sive fouling in the DucoBox, which affects its operation or has a more direct effect on output.

PRODUCT FICHE - Ref Delegated regulation (EU) n° 1253/2014
(English)
0 0 0 1
Manual control Clock control Central demand control Local demand control
(no DCV) (no DCV) (+ 1 sensor) (+ min 2 sensors)
cold - - - -54,1
average - - - -27,0
warm - - - -11,5
cold - - - A+
average - - - B
warm - - - E
- - - Unidirectional
- - - Variable speed
- - - None
- - - Not applicable
- - - 400
- - - 72,42
- - - 45
- - - 0,08
- - - 50
- - - 0,10
- - - 0,65
- - - Local demand control
- - - Not applicable
- - - 2,23%
- - - Not applicable
- - - Not applicable
- - - Not applicable
- - - Not applicable
- - - 50,8
cold - - - 5536
average - - - 2830
warm - - - 1280
Specific energy consumption
(SEC) in (kWh/(m².an))
SEC class
Trade mark Duco
Model reference 0000-4252 / 0000-4448
DucoBox Focus
Indoor/outdoor air tightness in (m³/h)
Annual electricity consumption (AEC) in (kWh
electricity/a)
Annual heating saved (AHS)
in (kWh primary energy/a)
DucoBox Focus
Declared maximum external leakage
rates in (%)
Mixing rate in (%)
Position and description of visual filter
warning
Instructions to install regulated
supply/exhaust grilles
Pre-/dis-assembly instructions
Airflow sensitivity to pressure variations at +
20 Pa / -20Pa
Sound power level Lwa at reference flow rate
in dB(A))
Reference flow rate in (m³/s)
Reference pressure difference in (Pa)
SPI en (W/m³/h)
Declared maximum internal leakage
rates in (%)
Typology
Type of motor
Type of heat recovery
Thermal efficiency of heat recovery in (%)
Maximum flow rate in (m³/h)
Electric fanpower input at maximum flow rate
in (W)
Control factor and control typology
Instructions according to legislative regulations area of application
www.duco.eu
Ecodesign Delegated regulation (EU) n° 1253/2014 (Duco V20200701)
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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
02 Product sheet

PRODUCT FICHE - Ref Delegated regulation (EU) n° 1253/2014
(English)
0 0 0 1
Manual control Clock control Central demand control Local demand control
(no DCV) (no DCV) (+ 1 sensor) (+ min 2 sensors)
cold - - - -54,3
average - - - -27,2
warm - - - -11,7
cold - - - A+
average - - - B
warm - - - E
- - - Unidirectional
- - - Variable speed
- - - None
- - - Not applicable
- - - 325
- - - 45,73
- - - 41
- - - 0,06
- - - 50
- - - 0,08
- - - 0,65
- - - Local demand control
- - - Not applicable
- - - 2,74%
- - - Not applicable
- - - Not applicable
- - - Not applicable
- - - Not applicable
- - - 42,6
cold - - - 5536
average - - - 2830
warm - - - 1280
Specific energy consumption
(SEC) in (kWh/(m².an))
SEC class
Trade mark Duco
Model reference 0000-5131
DucoBox Focus 325
Indoor/outdoor air tightness in (m³/h)
Annual electricity consumption (AEC) in (kWh
electricity/a)
Annual heating saved (AHS)
in (kWh primary energy/a)
DucoBox Focus 325
Declared maximum external leakage
rates in (%)
Mixing rate in (%)
Position and description of visual filter
warning
Instructions to install regulated
supply/exhaust grilles
Pre-/dis-assembly instructions
Airflow sensitivity to pressure variations at +
20 Pa / -20Pa
Sound power level Lwa at reference flow rate
in dB(A))
Reference flow rate in (m³/s)
Reference pressure difference in (Pa)
SPI en (W/m³/h)
Declared maximum internal leakage
rates in (%)
Typology
Type of motor
Type of heat recovery
Thermal efficiency of heat recovery in (%)
Maximum flow rate in (m³/h)
Electric fanpower input at maximum flow rate
in (W)
Control factor and control typology
Instructions according to legislative regulations area of application
www.duco.eu
Ecodesign Delegated regulation (EU) n° 1253/2014 (Duco V20200701)
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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)

PRODUCT FICHE - Ref Delegated regulation (EU) n° 1253/2014
(English)
0 0 0 1
Manual control Clock control Central demand control Local demand control
(no DCV) (no DCV) (+ 1 sensor) (+ min 2 sensors)
cold - - - -54,4
average - - - -27,4
warm - - - -11,9
cold - - - A+
average - - - B
warm - - - E
- - - Unidirectional
- - - Variable speed
- - - None
- - - Not applicable
- - - 225
- - - 24,43
- - - 37
- - - 0,04
- - - 50
- - - 0,07
- - - 0,65
- - - Local demand control
- - - Not applicable
- - - 3,96%
- - - Not applicable
- - - Not applicable
- - - Not applicable
- - - Not applicable
- - - 37,8
cold - - - 5536
average - - - 2830
warm - - - 1280
Specific energy consumption
(SEC) in (kWh/(m².an))
SEC class
Trade mark Duco
Model reference 0000-5130
DucoBox Focus 225
Indoor/outdoor air tightness in (m³/h)
Annual electricity consumption (AEC) in (kWh
electricity/a)
Annual heating saved (AHS)
in (kWh primary energy/a)
DucoBox Focus 225
Declared maximum external leakage
rates in (%)
Mixing rate in (%)
Position and description of visual filter
warning
Instructions to install regulated
supply/exhaust grilles
Pre-/dis-assembly instructions
Airflow sensitivity to pressure variations at +
20 Pa / -20Pa
Sound power level Lwa at reference flow rate
in dB(A))
Reference flow rate in (m³/s)
Reference pressure difference in (Pa)
SPI en (W/m³/h)
Declared maximum internal leakage
rates in (%)
Typology
Type of motor
Type of heat recovery
Thermal efficiency of heat recovery in (%)
Maximum flow rate in (m³/h)
Electric fanpower input at maximum flow rate
in (W)
Control factor and control typology
Instructions according to legislative regulations area of application
www.duco.eu
Ecodesign Delegated regulation (EU) n° 1253/2014 (Duco V20200701)
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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
≥ 200 kg / m²
03 Fitting
03.A Position
Select a roof pass-through
with low resistance.
0,5 à 1 m
Duct leading to the roof pass-through: use a
reducer 125mm– 160mm. Never use flexible
connections. Avoid curves in this part of the
canalization. If the DucoBox is not mounted in a
protected (insulated) volume, this duct needs to be
thermally insulated.
Use an
acoustic
silencer of
minimum
0.5 to 1 m.
This in every
connection
which leads
to a different
room.
Keep the box airtight. Close
the cover tightly and place
a cap onto any unused
opening.
Avoid as much as
possible the use of
curves. Avoid sharp
angles.
Avoid bumps and dirt in the ducts.
> 90°
160
mm
125 mm → ≥ 30 m³/h
100 mm → < 30 m³/h
< 90°
Reduce the transmission of
vibrations:
• Use Silent Block elements when
fixing the DucoBox to the wall.
• Use duct suspension clamps with
rubber.
Do not place an
exhaust air valve
directly on the box.
Use a 90° bend
between the DucoBox
and the valve. Use
valves with an as low
as possible back-
pressure and follow
the instructions as
given in the manual
regarding the opening
of the valves.
Assure an airtight
connection by using
tape, clamping strips
or tie-wrap. Do not
use screws.
Diameter of the ducts:
125mm upward from 30m³/h
100mm less than 30m³/h
Or an equivalent based on a specific duct calculation
(p.e. for ducts placed in floor screed). Make sure that
the total counter pressure in the ducts is as low as
possible (preferably ≤150Pa) and that the airspeed in
every duct does not exceed 3m/s.
1
7
8
9
10
2
3
4
5
6
DISCLAIMER: no rights can be derived from this document.
All tips are only advisory. All those carrying out
the work can, depending on the project at
hand, determine for themselves which
tips are feasible and/or useful.
The smooth running of your Duco ventilation system is totally dependent
on the choice and the quality of implementation of the duct system!
10 UNMISSABLE TIPS
Has the duct system been optimized? Ask
professional advice from your duct supplier. It
saves you time, ensures quality and provides
energetic advantage for the end user!
L1025000-B 01.06.2018
03.C Air duct
connections
Keep down restriction. A non-return flap is
required when discharging into a manifold.
Position it at least 30cm away from the Duco-
Box.
Be sure to take note of the ‘10 unmissable
tips’ as well when fitting the DucoBox. Avoid-
ing excessive use of bends, especially angles
sharper than 90° and adhering to the diam-
eter guidelines for the ductwork will ensure
that the ventilation box is able to do its job
satisfactorily. Failure to take account of this
recommendation may result in a highly energy
and maintenance-intensive system that gives
rise to frequent excessive noise levels.
03.B Fixing

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
04 Wiring
04.A Connector & buttons
Strain relief
It is mandatory to place the power supply cable in the slot provided, as shown in the drawing, before powering up the DucoBox.
04.B Cabling diagram
The DucoBox Focus is able to communicate with Duco slave components via a wireless (RF) or wired link. Both types of communi-
cation can be combined in one system. Communication with non-Duco components is possible via the Switch Sensor or one of the
connections on the optional Communication Print (see page 11).
RF RF
Wired*
RF
24 VDC 24 VDC
24 VDC
230 VAC 230 VACA AB BGND GND
BA GND
POWER
SUPPLY
User controller User controller Max 99 Wired
+ 25 RF
Tronic vent Tronic vent
230 VAC
230 VAC
DucoBox
Focus
RF obstacle-free zone
Do not place any obstacles causing RF interference
or other devices with an RF connection within a
radius of at least 30 cm around the RF component.
We take these to include items such as washing
machines, tumble dryers, ironing boards, etc.
The power supply can be determined depending on
the technical data sheet for each component (see
www.duco.eu). The power rating of all individual
components needs to be checked. The power supply
needs to be capable of coping with the sum of these
requirements with a cable length not exceeding 300m.
≥ 30 cm
* Use a screened solid-core cable not exceeding 300 m in length, with 5 cores 0.8 mm each.
Valve 2 Valve 1 HIGHDOWN LOWENTER INSTUP
Power
230 VAC
Fan
Duco
Wired
Antenna
Duco
Network
Tool
Switch
Contact
(n132)
GND B A
Blue Yellow Red White
Connector for
Communication Print
Display
PE
N
L
Illustrations and connections may vary depending on product configuration.
Incorrect connection or failure to follow the instructions may result in
damage to the connected devices.

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RF (wireless communication)
RF components have a maximum free-field range of 350 metres. This distance
will be much less in a building because of obstacles. Therefor you will need
to allow for features such as walls, concrete and metal. All slave components
(except those which are battery powered) also act as repeaters. Signals from
components that are unable to make a (strong) connection with the master
component are forwarded automatically via no more than one other non-bat-
tery-powered component (= hop point). Please refer to information sheet
RFcommunication (L8000018) at www.duco.eu for further information.
DUCO RF
Power supply 230 VAC
Wiring 1,5 mm²
Frequency 868 Mhz
Maximum distance 350 m, free field (less
through obstacles)
Maximum number
of components
Up to 25 wireless
components in a
single system
Wired (cabled communication)
Wired components can be daisy-chained (= recommended). This means that a
separate cable will not be required for each component. A single central power
supply can be used.
The cable required is a 5x0.75 mm² data cable. We strongly advise using a shield-
ed cable. This is to prevent any interference that may affect the data communi-
cation. Any Tronic grilles will be supplied with a 5x0.25 mm² cable which can be
connected via a splicing terminal block.
DUCO WIRED
Power supply 24 VDC
Wiring
5 x 0.75 mm²
(5 x 0.25mm² from Tronic
grilles)
Maximum distance up to 300 m
Maximum number
of components
Up to 99 wired
components in a
single system
05 Control valves
The control valves, whether or not they are fitted with a sensor for measuring CO or humidity, can be built into the DucoBox Focus.
Together with the fan, they ensure the correct exhaust air flow rate in the right room.
A DucoBox Focus can contain up to a maximum of 7 control valves (= one per intake duct). This can be expanded to a maximum of
11 control valves by using the ‘Control Valve Manifold’ (item 0000-4454).
A control valve requires to be provided in every case for each ventilation duct connected!
05.A Mounting the control valves
Slide the control valve into the locations
provided in the DucoBox Focus. Connect
the ‘VALVE’ connector on the DucoBox
to IN on the control valve. If applicable,
connect OUT on the valve to IN on anoth-
er control valve to be added. At least one
valve must be connected to the DucoBox at
any time. VALVE1 VALVE2
OUT
DucoBox
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
IN
OUT
OUT
TIP: Use the letter labels on the DucoBox
and the valves (A/B/C/D/E/F/G) to give
these the same letter, so that the vales
always remain in the same position.
IN
OUT
BBEE
AAFF
DD
GG
CC
A
B
C
D
E
F
G

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05.B Pairing the control valves
The control valves are paired automatically to the DucoBox whenever ‘installer mode’ is activated (see “Pairing components” chap-
ter).
05.C Removing / replacing a control valve
Taking control valve out temporarily
Follow these steps to take a control valve out of the unit
temporarily, e.g. to clean it during maintenance. Take care to
ensure that it is inserted back in the same location. Use the
letter labels on the DucoBox and the relevant valve for this. The
DucoBox will retain all its settings when the control valve is
reconnected.
Temporarily removing control valve
1Short-press the valve button in order to drive it
shut for 15 minutes. The LED will go out.
2Disconnect the wiring.
3Slide the valve out of the DucoBox.
Permanently removing or replacing control valve
To remove a control valve permanently from the system or to replace it (e.g. in the event of a fault) it is important that it should be
paired correctly. The DucoBox will not be able to be calibrated correctly if this is not done.
Permanently removing control valve
1Short-press the valve button in order to drive it shut.
2
Activate ‘Installer mode’ by pressing ‘INST’ on the
DucoBox. The LEDs on the DucoBox and control
valves will flash green rapidly.
3
Long-press the button once on the control valve to be
removed in order to remove it from the network. NB:
any underlying components will also be removed
from the network.
4Disconnect the wiring from the control valve to be
removed and slide it out of the DucoBox.
5Deactivate ‘Installer mode’ by pressing ‘INST’ on the
DucoBox. All LEDs will stop flashing.
Replacing a control valve
1Short-press the valve button in order to drive it shut.
2
Activate ‘Installer mode’ by pressing ‘INST’ on the
DucoBox. The LEDs on the DucoBox and control
valves will flash green rapidly.
3Short-press the button twice on the control valve to
be replaced in order to remove it from the network.
4Disconnect the wiring from the control valve to be
replaced and slide it out of the DucoBox.
5Slide the new control valve into the DucoBox and
connect it.
6
Short-press the button on the new control valve
once. The latter will take on all settings / connec-
tions in the network.
7Deactivate ‘Installer mode’ by pressing ‘INST’ on the
DucoBox. All LEDs will stop flashing.
05.D LED indications
The LED on the control valves will be white or off in normal
operation, depending on the control valve position. The bright-
ness of the LED indicates the flow rate through the valve.
Please refer to “07.B LED indications on page 12 for the
meaning of the remaining LED colours.
Valve open
= max air flow
LED
Valve shut
= lowest air flow
LED

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06 Additional control options
06.A Communication Print
With the optional Communication Print you have the option of al-
lowing the Duco ventilation systems to communicate via ModBus
and/or ethernet. ModBus integration enables them to be linked
to a building management system.
Disconnect the DucoBox from the power supply before connect-
ing the Communication Print and follow the instructions in the
manual included with the Communication Print.
ModBus
Ethernet Micro SD-card
PWM-OUT
PWM-IN
Switch Contact 1 (n133)
Switch Contact 2 (n134)
Switch Contact 3 (n135)
GND
B
A
-
+
-
+
Connector for
DucoBox

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07 Electronical installation
07.A Installer / User mode
To add components to the network, remove or replace, the system should be put in ‘Installer mode’. The LED on each component
indicates the active mode of the component (seetable in next section).
‘Installer mode’ can be activated by pressing the DucoBox Focus ‘INST’ button (see drawing in section "04.A Connections & but-
tons" on page 8.) Once the LED on the master unit starts flashing, it means that ‘Installer mode’ is active. Press ‘INST’ again to
return to ‘User mode’ (LED fully on or off). The system reverts automatically to ‘User mode’ after 15 minutes of inactivity.
07.B LED indications DucoBox Focus
RED (blinking slowly)
Not in network
RED (blinking rapidly)
Logging in
GREEN (blinking slowly)
In network GREEN
(blinking rapidly)
In network, waiting for associated components
YELLOW (blinking slowly)
Transitional phase (please wait)
YELLOW (on)
Initialising (system configuration in progress)
WHITE or OFF
Normal
BLUE
Component is displayed if changes are being put through via the master.
ORANGE
The system is not working correctly because the DucoBox has not been calibrated. Restart the
box. Follow the guidelines in ‘10 essential tips’ if the problem recurs continually.
07.C Pairing components
The DucoBox Focus is an extractor fan for a zonal ventilation system. This means that ventilation will only operate in the zones
where it is needed (e.g. only in the bathroom while showering) for the most energy-efficient operation. Thus, in the example below,
pressing the button in zone1 will change the ventilation setting only for this zone. Pressing the button on the master user control
will control all zones that are set to ‘AUTO’ at that point in time.
Master user control
This controls the
entire system
ZONE 1
ZONE 2
ZONE 3 ZONE 4
Zonal components
These components only control the zone with which they are paired.

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It is important that components are paired with the correct zone for this zonal operation. Components can be paired with the
DucoBoxFocus itself (controlling all zones) or with a control valve (controlling a single zone). A component will be paired in every
case with the component (control valve or DucoBox) that is flashing rapidly. It is possible to pair multiple user controls in one zone,
but not to link one user control to multiple control valves or DucoBoxes.
Never pair more than one system with RF components at the same time. If you do so, a component could be paired
in the wrong network, (e.g. in the neighbours’ DucoBox) or the component may not pair.
With RF components it is recommended to start with the component closest to the DucoBox. This enables this
component to be used as a hop point for components that are too distant from the DucoBox and unable to make a
direct RF connection with the DucoBox.
Pairing components
1Activate ‘Installer mode’ by tapping ‘INST’ on the DucoBox. The LED will flash green rapidly.
2Pairing components on the DucoBox:
Use this method for any components that are required to control the entire system (e.g. a master user control).
2a Tap once on the button of the component to be paired while the LED on the DucoBox is flashing rapidly. The LED on
this component will flash red briefly and then start to flash green rapidly.
3
Pairing components with a control valve:
Use this method for components that only control the zone connected to the control valve duct. Repeat these steps for
each zone.
3a Tap the control valve once so the LED starts to flash green rapidly. Underlying components can now be added in
this zone.
3b Add control components by tapping once on the component to be paired. The LED will flash red briefly and then
start to flash green rapidly.
3c Add any window ventilators by tapping once on the component to be paired. The LED will flash green slowly.
4Once all components have been paired, ‘Installer mode’ can be deactivated by tapping ‘INST’ on the DucoBox Focus.
LEDs on all components will stop flashing.
Please refer to the manual with the components for more detailed information.

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07.D Removing / replacing components
Removing paired components from the network or replacing is only possible within 30minutes after the component is paired in
or is restarted. Restarting can be done by disconnecting the power for a moment. After a time-span of 30 minutes, remove and
replace operations are ignored. This is valid for all components from date of manufacture 170323.
Removing a component
1
Activate ‘Installer mode’ by
long-pressing 2diagonal buttons
on a paired control. The LED will
flash green or yellow rapidly. 5 sec
2
Press once and hold a button on
the component to be removed in
order to remove it from the net-
work. NB: any underlying compo-
nents will also be removed from
the network.
5 sec
3
Deactivate ‘Installer mode’ by
pressing the 4buttons on a paired
control simultaneously (or using
the palm of your hand on a control
featuring touch buttons). The LED
will turn white.
Replacing a component
1
Activate ‘Installer mode’ by
long-pressing 2diagonal buttons
on a paired control. The LED will
flash green or yellow rapidly. 5 sec
2Press briefly twice on the button
of the component to be replaced.
2x
OLD
3
Tap once on the button for the new
component. The latter will take on
all settings / connections in the
network. 1x
NEW
3
Deactivate ‘Installer mode’ by
pressing the 4buttons on a paired
control simultaneously (or using
the palm of your hand on a control
featuring touch buttons). The LED
will turn white.
07.E Tips
•Removing all components from the network (e.g. in the event of problems): Activate ‘Installer mode’ and long-press ‘INST’
until the LED starts flashing red. The DucoBox will reboot and the LED will stop flashing.
•Restoring factory settings for the DucoBox and all paired components (AS FROM DucoBox version 18xxxx): Long-press ‘INST’
and ‘ENTER’ if not in ‘Installer mode’. The network remains in place.
• Use the Duco Network Tool to read out information from components.

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08 Air calibration
The system needs to be configured for it to work correctly. This will ensure its operation is as quiet as possible and energy-efficient.
See under the Tools heading at www.duco.eu for information about determining ventilation flow rates.
08.A Air calibration procedure for DucoBox Focus
The configuration procedure must be carried out on a calm day (no more than wind force 2: leaves rustling, feeling
the wind in one’s face).
DucoBox Focus air calibration
1The exhaust vents must be set depending on the situation. Proper pre-setting makes for rapid and correct configuration.
SITUATION 1:
one vent per valve
Set all vents to the fully open
position, regardless of the desired
flow rate. When using DucoVent
Design exhaust vents, leave the
outer ring in place for acoustic
effect.
SITUATION 2:
Multiple vents per valve
with equal flow rates
Set all vents to the fully open
position, regardless of the desired
flow rate. Set the valve to the
sum of the vent flow rates via the
display menu or the Duco Network
Tool. Example: 2 vents, 50 m³/h
each → set valve to 100 m³/h.
100
m3/h
+ =
SITUATION 3:
Multiple vents per valve
with different flow rates
Set the exhaust vents so they
match the desired flow rate in line
with the table below. Set the valve
to the sum of the vent flow rates
via the display menu or the Duco
Network Tool. Example 25 m³/h
vent and 75 m³/h vent → set valve
to 100 m³/h.
100
m3/h
+ =
When using DucoVent Design exhaust vents, always
leave the outer ring in place for acoustic effect.
Flow rate DucoVent
Design
DucoVent Basic
and other vents
75m³/h 100% open
50m³/h 50% open
25m³/h 25% open

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
2
Before activating air calibration mode:
• Close all windows and doors.
• Ensure that all duct openings in the DucoBox are fully closed and that the
DucoBox cover is closed!
• Avoid air leaks in the ventilation ducts.
• Set all window ventilators to the open position. Any Tronic ventilators will open
automatically.
open
3Pull the plug out of the socket and wait a few seconds.
4Put the plug back into the socket. The DucoBox will be configured automatically on
start-up. Calibration takes 30seconds + 1minute per connected control valve.
* Depending on the software version of the User controller / CO2/Humidity sensor.
08.B Checking
The steps set out below can be used to check whether flow rates have been set correctly.
Checking configured flow rate
1Open the DucoBox cover.
2Press ‘HIGH’ briefly. The DucoBox will remain in configuration mode for 30 min-
utes (as standard).
3Close the cover.
4Wait at least one minute to allow the ventilation system to stabilise.
5Measure the vents. If a flow rate differs from the desired output, this can be ad-
justed via the display menu or using the Duco Network Tool.
6If you finish before the standard setting of 30 minutes, re-open the DucoBox cover
and press ‘HIGH’ again. Then replace the cover on the DucoBox.

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
09 Maintenance & service
Please refer to the maintenance instructions at www.duco.eu and view the videos on duco.tv for more information.
For service problems as a user:
Please contact your installer. Keep the serial number of your product
to hand.
For service problems as an installer:
Please contact your Duco products seller. Keep the serial number of
your product to hand.
10 Warranty
All warranty conditions concerning the DucoBox and Duco's ventilation systems can be found on the Duco website.
All complaints are to be reported to Duco by the Duco distributor with a clear description and the order/invoice number under
which the products were delivered. In order to register the complaint, please use the complaint registration form found on the Duco
website and the product's serial number in your message to serviceduco.eu.
Sticker inside the DucoBox

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)

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L2000631 Installation guide for DucoBox Focus (Revision K | 13.07.2020)
Installed by:
L2000631 Document last modified on 13.07.2020 (revision K)