Ariston NUOS FSi 250 Instructies voor installatie en onderhoud - Pagina 24
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6.3 E
A
XHAUST
IR
See examples section 1.8 &
1.14.
*Important
When both inlet and outlet
ducts are used these must
terminate at least 500mm
apart.
For details of ducting kits
available, consult Ariston.
6.4 A
D
S
IR
UCT
TATIC
Component
Static Loss (Pa)
Ø150
M Equivalent
24
The exhaust air for the NUOS is extracted through a round vent either
from the right hand side or top of the unit, this can be terminated internally
or be ducted externally. When terminating the exhaust internally it must
be remembered that the air exiting the NUOS will be chilled, the effects of
this chilling must be considered. The room volume must have a minimum
volume of 20m³.
When terminating the exhaust duct to the outside, a termination grille must
be installed, but NOT an insect grille.
To prevent any ingress of driving rain the final extension duct must be
inclined 1º falling away from the appliance. The remaining duct can be
installed horizontally or vertically. The ducting must be adequately
supported, a bracket for each extension is recommended.
When terminating the exhaust air to the outside and drawing air from an
internal space, an air vent having a minimum free air space of 4000mm² is
required to the space where the air is being drawn.
F
IG
Each duct accessory has a designated static loss value (measured in
L
OSS
Pascal (Pa). The combined total of static losses for both exhaust and
supply air ducts where applicable must not exceed 70Pa.
See table below for static losses for accessories.
Smooth PVC
Duct
5 Pa/metre
1
No Air In Duct
Ducted Exhaust
No Duct
either side or top
. 6.3
T
D
A
YPICAL
UCTING
Smooth 90º PVC
Flexible Duct
Bend
15 Pa
9.5 Pa/metre
3
Ducted Exhaust
either side or top
E
XAMPLES
Flexible Duct
Straight
90ºC
7 Pa
1.9
1.4
Air In Duct &
*see note
GRILLE
10 Pa
2