XXXX (DIFFUSER NAME)
Tomelilla
Sweden
XXX-XXX (Diffuser Size)
+ALSx XXX-XXX / XXX (ALS Size)
k = XX,X / XX,X
k
q
p
T
I
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L
U
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P
P
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A
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R
A
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t
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p
T
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L
L
U
F
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S
U
P
P
L
Y
A
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l
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/
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r
A
L
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1
-
s
t
e
p
F
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Å
N
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kpq=
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pq
=
( )2
Accessories
Commissioning box:
ALS. The commissioning box is made of galvanized sheet
steel and contains a removable commissioning damper, fixed
measurement tapping and sound-absorbing
material*) with reinforced surface layer.
The ALS commissioning box is available with one or two dif-
ferences in dimension between the inlet and the outlet and
also a version for low installation where a low overall height
is required. The ALS commissioning box is then supplied
without outlet branch.
*) Fire resistance rated to B-s1,d0 in accordance with EN ISO 11925-2
Frame:
SAR K. For aesthetic installation of a lowered diffuser plate.
Adapter:
ADAPTER for visible T-bars in modular suspended ceiling
systems.
Suitable for lay-in ceilings, e.g. 625 x 625 or 675 x 675.
Installation
• The face is easily removed with a simple action, see
figure 1.
• The inlet spigot of the air diffuser backing box can be
secured to the connecting duct by means of self-tapping
screws or blind rivets.
• For flush-mounting in fixed ceilings, secure the air diffuser
to the building structure through the top of the backing
box.
• The air diffuser and commissioning box with low installa-
tion height are centred with each other using the supplied
locking strip. Secure the diffuser in the correct position
with screws or pop rivets in the underside of the commis-
sioning box, see figure 3.
• For installation in suspended ceilings with a framework,
place the air diffuser directly down in the T-bar framework,
and then fix it to the duct system or to the commissioning
box.
• If an ALS commissioning box is used, it must be secured
to the building structure by means of hangers or moun-
ting brackets.
• The distance between the commissioning box and the air
diffuser can be increased up to 500 mm with circular
duct, without having to lengthen the measuring tubes
and damper adjustment cords. See figure 2.
Commissioning
• Commissioning should be carried out with the air diffuser
face mounted.
• Pull the measuring tubes and damper adjustment cords
out through the face.
• Connect a pressure gauge to the measuring tube/tubes.
• The red tube from the ALS commissioning box in the one-
step design is used for supply air.
• The blue tube from the ALS commissioning box in the
two-step design.
• For extract air, always use the transparent tube.
• K-factor label is located in the backing box.
• The adjusted damper position is saved by tying together
the damper cord in an adjustment knot.
• Measurement accuracy and straight section requirement
before the commissioning box, see figure 2.
• Figure 2 shows a bend, a change in dimension and
T-piece.
• Other types of disturbance require at least 2xD straight
section (D= connection dimension) to obtain a
measurement accuracy of ±10% on the flow.
• The K-factor is also specified in the relevant
commissioning instructions at www.swegon.com.
Maintenance
• The extract air diffuser can be cleaned, if necessary, using
lukewarm water with dishwashing detergent added.
• Alternatively a vacuum cleaner and brush nozzle is used
for cleaning.
• The duct system is cleaned by opening the air diffuser
face. If a type ALS commissioning box is used, swing the
air diffuser face to the side on its hinges so that you then
can grip the handle of the tubular damper casing and
rotate it out of its holder, see figure 4.
Figure 1. Commissioning.
q= measured flow l/s
p= current pressure reading (Pa)
k= commissioning factor
k-factor Easy access
KITE Ceiling a
Installation – Commissioning – Maintenance 14/07/2020
