
HAWK Ceiling
2We reserve the right to alter specifications. 20110816 www.swegon.com
Technical description
Design
The square, perforated supply air diffuser consists of a
diffuser backing box and a diffuser face. The diffuser face
has perforations designed for managing high airflows. The
diffuser face is hung on hinges on one side and secured by
springs on the opposite side. This Quick Access fastening
system makes it simpler and quicker to open and close the
diffuser face for installation, commissioning and cleaning.
The air diffuser is also available in a low version for installa-
tion in ceiling void where low installation height is required.
The air diffuser is then supplied without any branch.
Materials and surface treatment
The backing box and diffuser face are made of sheet steel.
The connection branch is made of galvanized sheet steel.
The interior and exterior surfaces of the air diffusers are
painted in our standard colour: RAL 9010. The air diffusers
are also available in optional colours: RAL 7037 Dusty grey,
RAL 9006 white aluminium, RAL 9005 jet black, RAL 9007
grey aluminium and RAL 9003 signal white (NCS 0500).
Accessories
Commissioning box:
ALS. Made of galvanized sheet steel. Contains removable
commissioning damper, fixed measurement tappings and
sound absorbing material with reinforced surface layer, to
Fire Resistance Class B-s1,d0 according to EN ISO 11925-2.
The air diffuser is also available in a low version if the
height in the ceiling void is restricted. The commissioning
box is then supplied without outlet branch.
The commissioning box is available with 1 or 2 differences
in dimension between the inlet and outlet.
Frame:
SAR K. For aesthetic installation of a lowered 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. Specification
in separate product sheet for ADAPTER.
Planning
The HAWK Ceiling is available with square dimensions
of 595 x 595 mm in all connection sizes. This makes the
HAWK Ceiling very easy to install in suspended modular
ceilings with insertion dimensions for 600 x 600 mm
modules. Position the whole air diffuser on the surface
of the T-bar framework and then secure it to the duct
system. The HAWK Ceiling is also available in a low
version for installation in ceiling void where its installation
height must be minimized. See Figure 2.
Installation
To dismantle the face (see Figure 1) prior to installing the air
diffuser, insert a thin object, such as a Quick Access card or
similar card, between the air diffuser face and backing box
to release the springs. Then slide the card from the centre
outward toward the corners, see figure 1. The inlet spigot
of the diffuser backing box can be secured to the connec-
ting ducting by means of self-tapping screws or blind rivets.
For flush-mounting in fixed ceiling constructions, secure
the air diffuser by means of screws into place in the
framework through either the sides or top of the diffu-
ser backing box. The face and backing box in the version
for low installation height must be centred and jointed
together using the locking strip supplied. Secure the air dif-
fuser in the correct position by means of self-tappingscrews
to the underside of commissioning box. See figure 3.
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 air diffuser and the commissioning
box 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 Figure 2.
Commissioning
Commissioning should be carried out with the face plate
mounted. Pull the measuring tube and damper adjusting
cord out through the face plate. Connect a manometer to
the right measuring tube. The red or blue tube is used for
supply air depending on whether a one or two-step ALS
commissioning box is used. For extract air, use the transpar-
ent tube only. The required commissioning pressure can
be calculated by means of the K-factor of the air diffuser/
register. Adjust the damper to the correct position and tie
a commissioning knot on the damper cords to indicate the
damper setting.
The K-factor is specified on the product identification plate and
also in the relevant commissioning instructions available at www.
swegon.com.
Maintenance
The air diffuser can be cleaned, if necessary, using luke-
warm water with dishwashing detergent added. The duct
system can be accessed after opening the diffuser face. If
an ALS commissioning box is used, pull the distributor plate
aside and then twist the damper unit from of its mounting,
see figure 4.
Environment
The Declaration of construction materials is available at
www.swegon.com.