Duco DucoBox Silent Series User manual

Installation guide
ENGLISH
DucoBox Silent
Product version 17xxxx and above
Step by step
instructions
duco.tv
L2000651 (Revision N | 13.07.2020)

2
ENGLISH
L2000651 Installation guide for DucoBox Silent (Revision N | 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 Additional control options................................................................................. 9
05.A 3-position switch* via Perilex connector............................................. 9
05.B Boxsensors .................................................................................................... 9
06 Electronical installation .................................................................................... 9
06.A Change settings ........................................................................................... 9
06.B Installer / User mode ...............................................................................10
06.C LED indications...........................................................................................10
06.D Setting type of home.................................................................................10
06.E Pairing components..................................................................................11
06.F Removing / replacing components......................................................11
06.H Tips .................................................................................................................12
07 Air calibration......................................................................................................12
07.A Air calibration procedure for DucoBox Silent ..................................12
07.B Checking.......................................................................................................14
08 Maintenance & service.....................................................................................14
09 Warranty................................................................................................................14
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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L2000651 Installation guide for DucoBox Silent (Revision N | 13.07.2020)
CO2
HIGH
LOW
INST
RH
Master
Slave
01 Introduction
Congratulations on your DucoBox Silent, the quietest box in Europe! The DucoBox Silent performs two functions in a Duco De-
mand-Controlled Natural Ventilation System:
On the one hand it is the extractor fan that exhausts stale air with excessive CO2content or humidity.
On the other it is the system ‘master’ or brain of the system. It receives and interprets signals from slave components (measure-
ments 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)
1 0 1 1
Manual control Clock control Central demand control Local demand control
(no DCV) (no DCV) (+ 1 sensor) (+ min 2 sensors)
cold -30,5 --40,7 -54,1
average -14,1 --19,8 -27,0
warm -4,8 --7,7 -11,5
cold B-AA+
average E-E B
warm F -F E
Unidirectional -Unidirectional Unidirectional
Variable speed -Variable speed Variable speed
None -None None
Not applicable -Not applicable Not applicable
400 -400 400
72,42 -72,42 72,42
45 -45 45
0,08 -0,08 0,08
50 -50 50
0,10 -0,10 0,10
1-0,85 0,65
Manual control -Central demand control Local demand control
Not applicable -Not applicable Not applicable
2,23% -2,23% 2,23%
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
120,2 -86,8 50,8
cold 3355 -4290 5536
average 1715 -2193 2830
warm 776 -992 1280
Specific energy consumption
(SEC) in (kWh/(m².an))
SEC class
Trade mark Duco
Model reference 0000-4215 / 0000-4225 / 0000-4229 / 0000-4232 / 0000-4233 / 0000-4237 / 0000-4238 / 0000-4304 / 0000-4305 /
0000-4438 / 0000-4490 / 0000-4501 / 0000-4607
DucoBox Silent
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 Silent
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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L2000651 Installation guide for DucoBox Silent (Revision N | 13.07.2020)
02 Product sheet

PRODUCT FICHE - Ref Delegated regulation (EU) n° 1253/2014
(English)
1 0 1 1
Manual control Clock control Central demand control Local demand control
(no DCV) (no DCV) (+ 1 sensor) (+ min 2 sensors)
cold -31,0 --41,1 -54,3
average -14,6 --20,1 -27,2
warm -5,2 --8,1 -11,7
cold B-AA+
average E-D B
warm F -F E
Unidirectional -Unidirectional Unidirectional
Variable speed -Variable speed Variable speed
None -None None
Not applicable -Not applicable Not applicable
325 -325 325
45,73 -45,73 45,73
41 -41 41
0,06 -0,06 0,06
50 -50 50
0,08 -0,08 0,08
1-0,85 0,65
Manual control -Central demand control Local demand control
Not applicable -Not applicable Not applicable
2,74% -2,74% 2,74%
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
100,9 -72,9 42,6
cold 3355 -4290 5536
average 1715 -2193 2830
warm 776 -992 1280
Specific energy consumption
(SEC) in (kWh/(m².an))
SEC class
Trade mark Duco
Model reference 0000-5127
DucoBox Silent 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 Silent 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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L2000651 Installation guide for DucoBox Silent (Revision N | 13.07.2020)

PRODUCT FICHE - Ref Delegated regulation (EU) n° 1253/2014
(English)
1 0 1 1
Manual control Clock control Central demand control Local demand control
(no DCV) (no DCV) (+ 1 sensor) (+ min 2 sensors)
cold -31,3 --41,3 -54,4
average -14,9 --20,3 -27,4
warm -5,5 --8,3 -11,9
cold B-AA+
average E-D B
warm F -F E
Unidirectional -Unidirectional Unidirectional
Variable speed -Variable speed Variable speed
None -None None
Not applicable -Not applicable Not applicable
225 -225 225
24,43 -24,43 24,43
37 -37 37
0,04 -0,04 0,04
50 -50 50
0,07 -0,07 0,07
1-0,85 0,65
Manual control -Central demand control Local demand control
Not applicable -Not applicable Not applicable
3,96% -3,96% 3,96%
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
Not applicable -Not applicable Not applicable
89,6 -64,7 37,8
cold 3355 -4290 5536
average 1715 -2193 2830
warm 776 -992 1280
Specific energy consumption
(SEC) in (kWh/(m².an))
SEC class
Trade mark Duco
Model reference 0000-5126
DucoBox Silent 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 Silent 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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≥ 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.
Be sure to take note of the ‘10 unmissable
tips’ as well when fitting the DucoBox. Avoid-
ing excessive use of bends, especially angles
greater 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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L2000651 Installation guide for DucoBox Silent (Revision N | 13.07.2020)
04 Wiring
04.A Connector & buttons
CONNECTORS
1Power 230 VAC
2Perilex
3Humidity Boxsensor
4CO2Boxsensor
5Duco Network Tool
6Fan
CO2
HIGH
LOW
INST
RH
CO2
HIGH
LOW
INST
RH
PE 230 VAC
A
F
E
D
5
4
3
B
C
PE
N
L1
L2
L3
1
2
Blue Yellow Red White
6
The DucoBox Silent communicates with slave components through a wireless (RF)
connection. 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 com-
ponents that are unable to make a (strong) connection with the master component
are forwarded automatically via no more than one other 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
04.B Cabling diagram
BUTTONS
AUP
BENTER
CDOWN
DHIGH
ELOW
FINST
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.
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.
User controller
RF230 VAC RF230 VAC
Switch Sensor
RF230 VAC
Max. of 25 RF components
RF
DucoBox
Silent
230 VAC
≥ 30 cm
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.
CO2
HIGH
LOW
INST
RH

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05 Additional control options
05.A 3-position switch* via Perilex connector
The last operation on any User controller takes primacy
in all cases. The ventilation position on the 3-position
switch can therefore be overruled by another User con-
troller, such that an incorrect ventilation position will
be visible on the 3-position switch.
Please refer to the manual with the Duco Perilex plug
for more information.
* The 3-position switch is not a DUCO component.
06 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 CO2setpoint. This can be done using the Duco Network Tool*. This us-
er-friendly software also enables problems in the system to be pinpointed. The Duco Network Tool is issued to every installer after
attending a free training course at the DucoAcademy*. Please refer to our website or your Duco dealer for further information.
* Only in Belgium and the Netherlands
05.B Boxsensors
Boxsensors can be built into a DucoBox Silent and provide CO2and/
or humidity measurement in an air duct. ADucoBox Silent can
contain a maximum of oneCO2and oneHumidity Boxsensor. If the
living room (CO2measurement) and bathroom (humidity measure-
ment) are connected to the same duct/zone, the two Boxsensors
can be clipped together.
Fitting + connecting Boxsensor
1Twist the Boxsensor(s) into the desired duct in the box
until the Boxsensor clicks home.
2Connect the Boxsensors to one of the two connectors
provided on the DucoBox Silent PCB.
Settings
The CO2and RH setpoint can be changed using the Duco Network
Control Tool. See www.duco.eu for more information.
high setting
medium setting
low setting
RH
CO2
1
CLICK
CLICK
2
CLICK
RH CO2
DucoBox
A
B
C
D
E
F
G
A
B
C
D
E
F
G

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06.B 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 Silent ‘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.
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
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
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
1Ensure that ‘Installer Mode’ has been activated (via the ‘INST’ button).
2Press ‘LOW’ for a low-rise or ‘HIGH’ for a high-rise home.
3
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.
4Press the ‘INST’ button to exit ‘Installer mode’.
or
HIGH
LOW
INST