Domus HRX-aQ AQH200-B Manual de instruções de instalação - Página 5
Procurar online ou descarregar pdf Manual de instruções de instalação para Ventilador Domus HRX-aQ AQH200-B. Domus HRX-aQ AQH200-B 12 páginas. Range mechanical ventilation with heat recovery
Imprimir página3.3 Ducting Guidelines
Please refer to the design drawings for the proposed ducting layout.
Four 204x60mm sockets are provided for connecting the ducting.
Ductwork should be securely connected to the sockets using Domus
Ventilation DDSEAL acrylic sealant; failure to do this will cause
unnecessary air leakage and impair performance. Ducting must be
connected to all four sockets in accordance with the configuration
(Figure 5).
Where ducting passes through unheated areas and voids (e.g. loft
spaces) it must be insulated using Domus Ventilation Thermal
duct insulation in order to comply with The Building Regulations.
Additionally, both ducts connecting the HRX-aQ to outside must
be insulated with an additional continuous vapour barrier to avoid
condensation forming on the outside of the ducts.
Alternative proprietary duct insulation may be used provided it complies
with the 2010 Domestic Ventilation Compliance Guide.
When passing through a fire-stopping wall or fire-compartment wall,
Domus Ventilation FireBrake intumescent duct connectors should
be used in order to maintain the integrity of firestopping walls in
accordance with Approved Document B of the Building Regulations.
Alternative proprietary fire-stopping methods may be employed
provided they comply with Approved Document B of The Building
Regulations.
The fresh supply air must be drawn in from the exterior of the property.
If drawn through a wall, a Domus Ventilation 905 airbrick should
be fitted. If drawn in through a pitched roof a Domus Ventilation
4411/4411T universal roof terminal should be fitted or a proprietary
roof terminal designed for mechanical ventilation with a free area of at
least 10,000mm².
The stale extract air must be expelled to the exterior of the property.
If expelled through a wall, a Domus Ventilation 905 airbrick should
be fitted. If expelled through a pitched roof a Domus Ventilation
4411/4411T universal roof terminal should be fitted or a proprietary
roof terminal designed for mechanical ventilation with a free area of at
least 10,000mm².
It is an industry recommendation (TR35) that the fresh supply and stale
exhaust external inlets and outlets should be fitted at least 2m apart to
avoid recirculation of stale exhaust air.
Further details regarding installation can be found in the 2010 Domestic
Ventilation Compliance Guide.
3.3.1 Rigid Ducting
Install using the least number of fittings to minimise resistance to
airflow. All duct runs should be as short and as straight as possible for
maximum performance with adequate support.
3.3.2 Flexible Ducting
Ensure flexible ducting lengths are kept to a maximum of 300mm and
ducting is pulled taut so that it is smooth and straight. Mechanically
fix flexible ducts using Domus Ventilation 125-5 hose clips and tape
seal using Domus Ventilation 50TP45 duct tape or any good quality
proprietary duct tape for added air-tightness.
5.
Unit Connections
LAB1199R | OCTOBER 2023
4.0 ELECTRICAL
WARNING: This appliance must be earthed.
All wiring must be carried out by a qualified electrician and
conform to the prevailing national regulations, for example the
latest edition of BS7671: IEE Wiring Regulations.
This appliance is suitable for 230V 50Hz single phase supply only, fused
at 3 Amps. A double-pole switch having a minimum contact separation
of 3mm must be used to provide isolation for the appliance.
External wiring (1.5mm² max.) and isolators to be supplied by others.
A 4m length of 4-core signal cable is supplied with the unit to connect
the wiring centre to the user interface.
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