ENGLISH
03 Installation
03.A Position
03.C Air duct
connections
Limit the resistance� A non-return flap is re-
quired when discharging into a manifold�
Be sure to take note of the '10 essential tips'
as well when fitting the DucoBox� Avoiding
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�
24
L0001779-L
18.09.2018 Installation manual for DucoBox Silent
All manuals and user guides at all-guides.com
installation-tips-duct-system-DucoBox-Silent-Focus-(en)
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.
3
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.
4
Avoid as much as
possible the use of
curves. Avoid sharp
angles.
5
Assure an airtight
connection by using
tape, clamping strips
or tie-wrap. Do not
use screws.
6
Avoid bumps and dirt in the ducts.
L1025000-B 01.06.2018
03.B Mounting
7
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
1
thermally insulated.
Select a roof pass-through
with low resistance.
8
Reduce the transmission of
2
vibrations:
160
Keep the box airtight. Close
• Use Silent Block elements when
mm
fixing the DucoBox to the wall.
the cover tightly and place
• Use duct suspension clamps with
a cap onto any unused
rubber.
opening.
< 90°
10
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.
≥ 200 kg/m²
> 90°
9
Use an
acoustic
silencer of
minimum
0.5 to 1 m.
This in every
connection
which leads
to a different
0,5 à 1 m
room.
125 mm → ≥ 30 m3/h
100 mm → < 30 m3/h