17xxxx DucoBox Silent Connect Installation Guide
- June 15, 2024
- Duco
Table of Contents
DucoBox Silent Connect
Product version 17xxxx and above
Installation guide
Video instructions
Translation from Dutch of the original instructions
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.
VERO DUCO – Handelsstraat 19 – 8630 Veurne – Belgium
tel +32 58 33 00 33 – info@duco.eu –
www.duco.eu
Introduction
Congratulations on your DucoBox Silent Connect, the quietest box in Europe!
The DucoBox Silent Connect performs two functions in a DUCO Demand-Controlled
Natural Ventilation System:
On the one hand it is the extractor fan that exhausts stale air with excessive
CO2 content or humidity.
On the other it is the system ‘master’ or brain of the system. It receives and
interprets signals from slave components (measurements 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 excessive fouling in
the DucoBox, which affects its operation or has a more direct effect on the
flow rate.
Product sheet
PRODUCT FICHE – Ref Delegated regulation (EU) n° 1253/2014
DucoBox Silent Connect
| Trade mark | Duco |
|---|---|
| Model reference | DucoBox Silent Connect |
0000-4250 / 0000- 4455
| Manual control (no DCV)| Clock control (no DCV)| Central demand
control (+ 1 sensor)| Local demand control (+ min 2 sensors)
---|---|---|---|---
Specific energy consumption (SEC) in (kWh/(m².an))| cold| -30,5| –| -40,7|
-54,1
average| -14,1| –| -19,8| -27,0
warm| -4,8| –| -7,7| -11,5
SEC class
| cold| B| –| A| A+
average| E| –| E| B
warm| F| –| F| E
Typology| Unidirectional| –| Unidirectional| Unidirectional
Type of motor| Variable speed| –| Variable speed| Variable speed
Type of heat recovery| None| –| None| None
Thermal efficiency of heat recovery in (%)| Not applicable| –| Not applicable|
Not applicable
Maximum flow rate in (m³/h)| 400| –| 400| 400
Electric fanpower input at maximum flow rate in (W)| 72,42| –| 72,42| 72,42
Sound power level Lwa at reference flow rate in dB(A))| 45| –| 45| 45
Reference flow rate in (m³/s)| 0,08| –| 0,08| 0,08
Reference pressure difference in (Pa)| 50| –| 50| 50
SPI en (W/m³/h)| 0,10| –| 0,10| 0,10
Control factor and control typology| 1
Manual control
| –
–
| 0,85
Central demand control
| 0,65
Local demand control
Declared maximum internal leakage rates in (%)| Not applicable| –| Not
applicable| Not applicable
Declared maximum external leakage rates in (%)| 2,23%| –| 2,23%| 2,23%
Mixing rate in (%)| Not applicable| –| Not applicable| Not applicable
Position and description of visual filter warning| Not applicable| –| Not
applicable| Not applicable
Instructions to install regulated supply/exhaust grilles| Instructions
according to legislative regulations area of application
Pre-/dis-assembly instructions| www.duco.eu
Airflow sensitivity to pressure variations at + 20 Pa / -20Pa| Not applicable|
–| Not applicable| Not applicable
Indoor/outdoor air tightness in (m³/h)| Not applicable| –| Not applicable| Not
applicable
Annual electricity consumption (AEC) in (kWh
electricity/a)
| 120,2| –| 86,8| 50,8
Annual heating saved (AHS) in (kWh primary energy/a)| cold| 3355| –| 4290|
5536
average| 1715| –| 2193| 2830
warm| 776| –| 992| 1280
Trade mark| Duco
---|---
Model reference| DucoBox Silent Connect 325
0000- 5133
| Manual control (no DCV)| Clock control (no DCV)| Central demand
control (+ 1 sensor)| Local demand control (+ min 2 sensors)
---|---|---|---|---
Specific energy consumption (SEC) in (kWh/(m².an))| cold| -31,0| –| -41,1|
-54,3
average| -14,6| –| -20,1| -27,2
warm| -5,2| –| -8,1| -11,7
SEC class
| cold| B| –| A| A+
average| E| –| D| B
warm| F| –| F| E
Typology| Unidirectional| –| Unidirectional| Unidirectional
Type of motor| Variable speed| –| Variable speed| Variable speed
Type of heat recovery| None| –| None| None
Thermal efficiency of heat recovery in (%)| Not applicable| –| Not applicable|
Not applicable
Maximum flow rate in (m³/h)| 325| –| 325| 325
Electric fanpower input at maximum flow rate in (W)| 45,73| –| 45,73| 45,73
Sound power level Lwa at reference flow rate in dB(A))| 41| –| 41| 41
Reference flow rate in (m³/s)| 0,06| –| 0,06| 0,06
Reference pressure difference in (Pa)| 50| –| 50| 50
SPI en (W/m³/h)| 0,08| –| 0,08| 0,08
Control factor and control typology| 1
Manual control
| –
–
| 0,85
Central demand control
| 0,65
Local demand control
Declared maximum internal leakage rates in (%)| Not applicable| –| Not
applicable| Not applicable
Declared maximum external leakage rates in (%)| 2,74%| –| 2,74%| 2,74%
Mixing rate in (%)| Not applicable| –| Not applicable| Not applicable
Position and description of visual filter warning| Not applicable| –| Not
applicable| Not applicable
Instructions to install regulated supply/exhaust grilles| Instructions
according to legislative regulations area of application
Pre-/dis-assembly instructions| www.duco.eu
Airflow sensitivity to pressure variations at + 20 Pa / -20Pa| Not applicable|
–| Not applicable| Not applicable
Indoor/outdoor air tightness in (m³/h)| Not applicable| –| Not applicable| Not
applicable
Annual electricity consumption (AEC) in (kWh electricity/a)| 100,9| –| 72,9|
42,6
Annual heating saved (AHS) in (kWh primary energy/a)| cold| 3355| –| 4290|
5536
average| 1715| –| 2193| 2830
warm| 776| –| 992| 1280
Trade mark| Duco
---|---
Model reference
| DucoBox Silent Connect 225
0000- 5132
| Manual control (no DCV)| Clock control (no DCV)| Central demand
control (+ 1 sensor)| Local demand control (+ min 2 sensors)
---|---|---|---|---
Specific energy consumption (SEC) in (kWh/(m².an))| cold| -31,3| –| -41,3|
-54,4
average| -14,9| –| -20,3| -27,4
warm| -5,5| –| -8,3| -11,9
SEC class
| cold| B| –| A| A+
average| E| –| D| B
warm| F| –| F| E
Typology| Unidirectional| –| Unidirectional| Unidirectional
Type of motor| Variable speed| –| Variable speed| Variable speed
Type of heat recovery| None| –| None| None
Thermal efficiency of heat recovery in (%)| Not applicable| –| Not applicable|
Not applicable
Maximum flow rate in (m³/h)| 225| –| 225| 225
Electric fanpower input at maximum flow rate in (W)| 24,43| –| 24,43| 24,43
Sound power level Lwa at reference flow rate in dB(A))| 37| –| 37| 37
Reference flow rate in (m³/s)| 0,04| –| 0,04| 0,04
Reference pressure difference in (Pa)| 50| –| 50| 50
SPI en (W/m³/h)| 0,07| –| 0,07| 0,07
Control factor and control typology| 1
Manual control| –
–| 0,85
Central demand control| 0,65
Local demand control
Declared maximum internal leakage rates in (%)| Not applicable| –| Not
applicable| Not applicable
Declared maximum external leakage rates in (%)| 3,96%| –| 3,96%| 3,96%
Mixing rate in (%)| Not applicable| –| Not applicable| Not applicable
Position and description of visual filter warning| Not applicable| –| Not
applicable| Not applicable
Instructions to install regulated supply/exhaust grilles| Instructions
according to legislative regulations area of application
Pre-/dis-assembly instructions| www.duco.eu
Airflow sensitivity to pressure variations at + 20 Pa / -20Pa| Not applicable|
–| Not applicable| Not applicable
Indoor/outdoor air tightness in (m³/h)| Not applicable| –| Not applicable| Not
applicable
Annual electricity consumption (AEC) in (kWh electricity/a)| 89,6| –| 64,7|
37,8
Annual heating saved (AHS) in (kWh primary energy/a)| cold| 3355| –| 4290|
5536
average| 1715| –| 2193| 2830
warm| 776| –| 992| 1280
Mounting
03.A Position
03.B Fitting
03.C Air duct connections
Keep down restriction. A non-return flap valve is required when discharging
into a manifold.
Be sure to take note of the ‘10 unmissable tips’ as well when mounting the
DucoBox.
Avoiding excessive use of bends, especially angles greater than 90° and
adhering to the diameter 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.
10 UNMISSABLE TIPS
The smooth running of your Duco ventilation system is totally dependent on the choice and the quality of implementation of the duct system!
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!
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.
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.
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.
04.B Wiring diagram
The DucoBox Silent Connect is able to communicate with DUCO slave components
via a wireless (RF) or wired link. Both types of communication can be combined
in one system.
Communication with non-DUCO components is possible via the switch sensor.
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. Therefore, you
will need to take objects such as walls, concrete and metal into account. 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-battery-powered component (= hop). Please refer to
information sheet RF communication (L8000018) at
www.duco.eu for further information.
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
shielded cable. This is to prevent any interference that may affect the data
communication. Any Ironic vents will be supplied with a 5 x 0.25 mm2 cable
which can be connected via a splicing terminal block.
Additional control options
05.A Box sensors
Box sensors can be built into a DucoBox Silent Connect and provide CO2 and/or
humidity measurement in an air duct. A DucoBox Silent Connect can contain a
maximum of one CO2 and one Humidity Box Sensor. If the living room (CO2
measurement) and bathroom (humidity measurement) are connected to the same
duct/zone, the two Box Sensors can be clipped together.
Fitting + connecting Box Sensor
- Twist the Box Sensor(s) into the desired duct in the box until the Box Sensor clicks into place.
- Connect the Box Sensors to one of the two connectors provided on the DucoBox Silent Connect PCB.
Settings
The CO2 and RH setpoint can be changed via the Duco Network Tool. See
www.duco.eu for more information.
05.B Duco Connectivity Board
The optional circuit board allows linking towards home automation and
building management systems via REST API (locally or via the cloud) or Modbus
TCP (locally). Both are possible via Ethernet or Wi-Fi.
The Duco Connectivity Board also enables the Duco Installation App to be used.
This application supports – and relieves – installers to control and maintain
a ventilation system in a userfriendly way.
Electronical installation
06.A Change settings
Most of the factory settings for the network and components will be
satisfactory as they are, however, depending on the situation, it may be
desirable to change some parameters, such as the CO2 setpoint. This can be
done via the Duco Installation App or Duco Network Tool* For more information,
consult our website, scan the QR code or contact your DUCO distributor.
- Only in Belgium and the Netherlands
https://play.google.com/store/apps/details?id=io.owow.duco.installer
https://apps.apple.com/lu/app/duco-installation-app/id1593421862
06.B Installer/User mode
To add, remove or replace components to the network, 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 Silent Connect
‘INST’ button [see drawing in section “04.A Connections & buttons” 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.
06.C LED indications
| 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 (clignotement rapide)
Transitional phase (please wait)| YELLOW (on) Initialising (system
calibration 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 DucoBox. Follow the guidelines in ‘10 essential tips’
if the problem recurs continually.
06.D Setting type of home
Setting the type of home and number of occupants correctly will provide the
ventilation system with a better basis to adjust the mid-position. There are
two types of home: low-rise [e.g. a house) and high-rise [e.g. a flat).
Configuration of this component is obligatory in the Netherlands. The standard
setting for a DucoBox is as a low-rise home for 4 [or more) occupants.
Setting type of home
- Ensure that ‘Installer Mode’ has been activated (via the ‘INST’ button)
- Press ‘LOW’ for a low-rise or ‘HIGH’ for a high-rise home
- The yellow LED (see illustration) will flash in a pattern that indicates the number of occupants: Once, twice (applies for 3 occupants as well) or 4 times (applies for 4 occupants or more). Press ‘LOW’ or ‘HIGH’ respectively again until the LED pattern matches the correct number of occupants.
- Press the ‘INST’ button to exit ‘Installer mode’.
06.E Pairing components
Never pair more than one system with RF components at the same time. If you do
so, a component in the wrong network could be paired, e.g. in the neighbours’
DucoBox.
Example of a pairing sequence
Pairing components
Never pair more than one system with RF components at the same time. If you do so, a component in the wrong network could be paired, e.g. in the neighbours’ DucoBox.
Activate ‘Installer mode’ by tapping ‘INST’ on the DucoBox. The LED will
flash green rapidly.
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. Repeat this
step until all remaining components in the current zone have been paired.
With RF components: start with the component closest to the master. If the
first pairing fails, another component can be tried first, which can then act
as a hop for components that cannot make a direct RF connection to the
DucoBox.
Once all components have been paired, ‘Installer mode’ can be deactivated by
tapping ‘INST’ on the DucoBox Silent Connect. LEDs on all components will stop
flashing.
06.F 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
-
Activate ‘Installer mode’ by long-pressing 2 diagonal buttons on a paired control. The LED will flash green rapidly.
-
Press once and hold a button on the component to be removed in order to remove it from the network.
-
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
-
Activate ‘Installer mode’ by long-pressing 2 diagonal buttons on a paired control. The LED will flash green rapidly.
-
Press the button of the component to be replaced twice briefly.
-
Briefly press the button of the new component once (short). The latter will take on all settings /connections in the network.
-
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.
06.G 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 (around 15 seconds) and the LED will stop flashing.
- Restoring factory settings of the DucoBox and all registered components (AS FROM DucoBox version 18xxxx): Long press ‘INST’ and ‘ENTER’ when not in ‘Installer mode’. The network will be preserved.
- Use the Duco Installation App or the Duco Network Tool to read out information from components.
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.
07.A Air calibration procedure for DucoBox Silent Connect
The air calibration procedure must be carried out on a calm day (no more than
wind force 2: leaves rustling, feeling the wind in one’s facel.
Air calibrating the DucoBox Silent Connect
Set all exhaust vents so they match the desired flow rate in accordance with
the table below.
Proper pre-setting makes for rapid and correct calibration.
| Flow rate | DucoVent Design | DucoVent Basic and other vents |
|---|---|---|
| 75m3/h | 100% open | |
| 50m3/h | 50% open | |
| 25m3/h | 25% open |
When using DucoVent Design exhaust vents always leave the outer ring in place
for acoustic effect.
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 lid is closed!
- Avoid air leaks in the ventilation ducts.
- Set all window ventilators to the open position
Press ‘HIGH’ or ‘LOW’ to activate the configuration mode for 30 minutes.
Then close the lid firmly.
Which configuration mode should I choose?
Button| Air calibration using ‘HIGH’
This method is standard and has the lowest consumption. Recommended in the
majority of homes.| Air calibration using ‘LOW’
This method offers a boost mode but may give rise to more noise and higher
consumption.
---|---|---
| Low mode (10%)| Low mode (14-33%)
| Medium mode (50%)| High mode (100%)
| High mode (100%)| Boost mode (143-333%)
The percentages in the table indicate what percentage of the flow rate
configured will be extracted.
The configuration mode chosen does not affect the operation of the AUTO mode.
- In the ‘LOW’ configuration, the percentage in low mode and boost mode depends on the type of home (see section “06 D Setting type of home” on page 11) and limited to the maximum achievable ventilation system flow rate.
Close the lid of the DucoBox.
Make sure it seals the DucoBox airtight.
Choose the duct with the highest flow rate and resistance.
Measure at the vent and adjust the DucoBox’s rpm until the desired flow rate is obtained. This can be done in two ways:
- Using the (lower) and (higher) buttons on a paired Remote control or Room Sensor*
- Using the ‘DOWN’ and ‘UP’ buttons on the DucoBox. This requires the lid to be removed temporarily. Always close the lid after every measurement.
Pressing the buttons once is equal to 1% (= approximately 2 to 3 m3/h per button press depending on the resistance in the ducts)
Now measure the other vents. The flow rate from these other vents must only be adjusted at the vents themselves.
Repeat steps 6 and 7 until the desired flow rate has been obtained at each vent.
Exit adjustment mode. This can be done in two ways:
Long-press ‘AUTO’ on a paired Remote control or room sensor until the 4 LEDs
light up white briefly and then turn yellow again.
Press ‘ENTER’ in the DucoBox and then immediately close the lid on the Duco
Box. If the lid was not closed, you can pull the plug out of the power socket
for a few seconds after closing the lid in order to reboot the DucoBox.
The DucoBox will now perform a calibration by speeding up high. This may take
up to 1.5 min. Calibration will be complete once the DucoBox slows down, the
AUTO’ button LEDs on the Remote controls / room sensors will turn white, as
will the LED on the DucoBox.
07.B Checking
The steps set out below can be used to check whether flow rates have been
set correctly.
Checking configured flow rate
The configured flow rate depends on whether the ‘HIGH’ or ‘LOW’ configuration
mode has been chosen.
Press for ‘HIGH’ configuration (= standard) or for ‘LOW’ configuration on a
random control to have the system run for 15 minutes at 100% of the requested
flow rate.
Measure the flow rate at the exhaust vents.
After the check, the system can be reset to the desired ventilation mode. If you do not do so, the system will automatically revert to the AUTO mode after 15 minutes.
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 retailer of DUCO products. Keep the serial number of your
product to hand.
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. To do so, please fill out the complaint registration form, found
on the DUCO website, mentioning the serial number and send it to
service@duco.eu
L2000641 Document last modified on 17.11.2023 (revision J)