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20. 05. 21. Document Number 671771
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
DRI-365
Installation Manual
3.4 Air Intake & Ducting Connections
Any air intake terminal MUST be installed in accordance with
appropriate regulation.
As a guide, the BS5440 series of British Standards deals with this
issue and currently states that an air intake must be at a minimum
distance of 300mm from a gas boiler balanced flue. Installers are
advised to be aware of the requirements of this standard when
installing ‘through the wall’ supply air ducting. Similarly, supply
and extract air grilles should be at least 300mm apart.
As explained previously the unit is capable of drawing in external air
from different roof locations via an air inlet spigot (see overleaf).
Air inlet locations are as follows:
•
Soffit Installation: The soffit through a grille and ducting, supplied
by others.
•
Wall Installation: Wall grille and ducting, supplied by others.
The following installation materials, not supplied with the unit, can be
purchased separately, direct from Nuaire.
Tel: 02920 858500
E-mail: [email protected]
Kit
Type
Part No.
Description
DRI365-
SOFITKIT
775229
128mm x 260mm soffit grille
PVC933WH
3m length of 222mm x 90mm flexible PVC ducting for use
on soffit inlets
FLDI150
5m length of 150mm dia insulated ducting
RDC150
150mm duct connector for connecting 222 x 90 flexible
duct to 150mm duct
777483
2m length insulated flexible ducting
DT33
Qty 8 dynotie zip ties, used for connecting ducting to
spigots
DRI365-W
ALLKIT
FLD1150
5m length of 150mm dia. Insulated ducting
777483
2m length insulated flexible ducting.
PVC604WH
Outlet grille
PVC130-6WH
150mm telescopic pipe
DT33
Qty 8 dynotie zip ties, used for connecting ducting to
spigots
3.4.1 Soffit Installation
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Typical Soffit Air Inlet & Ducting
Soffit grille (Part No. 775229) fixes over rectangular ducting which
has been pulled through the rectangular hole (220mm X 80mm)
cut in soffit and folded flat up against the surface of the soffit.
Note that a minimum soffit width of 130mm is required.
Form end of rectangular
ducting to fit connector
and secure using
dynotie connector.
150mm dia. insulated
ducting connected to
unit spigot using
dynotie connector
(Part No. FLDI150).
220mm x 90mm flexible
PVC Rectangular ducting
(Part No. PVC933WH).
Note: this duct should be
kept as short as possible.
Circular duct connector
(Part No. RDC150).
3.4.2 Wall Installation
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Typical Wall Air Inlet & Ducting
150mm dia. insulated ducting
connected to unit spigot using
dynotie connector
(Part No. FLDI150).
150mm dia. pipe
(Part No. PVC130-6WH).
Insulated duct formed over pipe
and sealed with dynotie connector.
199 x 215 x 20mm
white plastic wall grille
(Part No. PVC604WH).