Accessories
Commissioning box:
ALS. The ALS box is made of galvanized sheet steel and contains
a removable commissioning damper, fixed measurement tappings
and sound absorbing material*
)
with reinforced surface layer.
The ALS commissioning box is available with one or two differences
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 air diffuser.
Adapter:
ADAPTER, for adaptation to various variants and makes of
systemized false ceilings: Ecophon, Gyproc, Dampa etc. Also
used for adaptation to optional sizes of lay-in ceilings, for
instance 625 x 625 or 675 x 675.
Installation
To dismantle the diffuser face, insert a thin object, for example a
Quick Access card or the equivalent, in between the diffuser face
and the diffuser backing box in order to release the springs. Move
the card from the centre out towards the corner, see Figure 2.
The inlet spigot of the air diffuser backing box can be secured to
the connecting duct by means of self-tapping screws or a blind
rivets. For flush-mounting in fixed false ceiling constructions,
secure the terminal by means of screws into place in the frame-
work through either the sides or top of the diffuser backing box.
The air diffuser and commissioning box in the version for low
installation height must be centred and jointed together using the
locking strip supplied. Secure the air diffuser in the correct posi-
tion with self-tapping screws or pop rivets in the underside of the
commissioning box.
For mounting in modular false ceilings, it is advisable to select air
diffusers with outer dimensions of 595 x 595 mm. Position these
directly down in the T-bar framework, and then secure them 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 mounting brackets.
The distance between the commissioning box and the air diffuser
can be increased by as much as 500 mm with an ordinary circular
duct without having to lengthen the measuring tubes and damper
adjustment cords. See Figures 3 and 4.
Commissioning
Commissioning should be carried out with the air diffuser face
mounted. Pull the measuring tubes and damper adjustment cords
out through the air diffuser face. Then connect the manometer to
the correct measuring tube. The red and the blue tubes respectively
from the ALS commissioning box of the one or two-step version
are used for supply air. For extract air, always use the transparent
tube. The rated coefficient of performance of the air diffuser can
Figure 1. Commissioning.
Quick
Access
HAWK CEILING
Tomelilla
Sweden
200-600
+ALS 160 -200/125 -200
k
q
k = XX / XX
P
TILLUFT / SUPPLY AIR
TILLUFT / SUPPLY AIR
FRÅ
NLU
FT /
EXTR
ACT AI
R
k
P
q
⋅
=
k
P
q
=
( )
2
be used in a calculation to determine the required commissioning
pressure. Conclude commissioning by adjusting the damper to the
correct blade position, tie a commissioning knot in the damper
cords to indicate the damper position. See Figure 1.
Measurement accuracy and requirement on straight duct before
the commisioning box, see Figure 3. The requirements of straigh
duct depends on the type of disturbance before the commis-
sioning box. Figure 3 shows a bend, a dimensional change and a
T-piece. Other types of disturbances requires at least 2xD straight
(D = connection dimension) for measurement accuracy of ± 10%
of the flow.
The rated coefficient of performance (K-factor) is specified on the
identification label of the product and in the relevant commission-
ing instructions at www.swegon.com.
Maintenance
The air diffuser can be cleaned, if necessary, using lukewarm water
with dishwashing detergent added or by vacuum cleaning using a
brush nozzle. The duct system can be reached for cleaning after
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 6.
q
= flow reading l/s
p
= current pressure reading (Pa)
k
= commissioning factor
k-factor
HAWK
Ceiling a
Installation – Commissioning – Maintenance
20180814
