Technical Description; Design; Materials And Surface Treatment; Accessories - Swegon LOCKZONE Ceiling Installation Instructions Manual

Technical description

Design

Rectangular perforated supply air diffuser consisting of two
parts: a backing box and a diffuser face. The diffuser face
has guide vane perforations arranged in a radial pattern for
swirl diffusion. The diffuser face is equipped with hinges on
one side and is fastened by means of springs on the opposite
side. This fastening technique, called Quick Access, lets you
open and close the diffuser face quickly and with ease to
install, commission or clean it. The diffuser is also available
in a low design where short overall height is required. The
diffuser is then supplied without connection branch (Not size
400-600).

Materials and surface treatment

The backing box and the diffuser face are made of sheet
steel. The connection branch is made of galvanized sheet
steel. The inner and outer surfaces of the air diffuser are
painted.
• Standard colour:
- White semi-gloss, lustre 40, RAL 9003/NCS S 0500-N
• Alternative standard colours:
- Silver gloss, lustre 80, RAL 9006
- Grey aluminium gloss, lustre 80, RAL 9007
- White semi-gloss, lustre 40, RAL 9010
- Black semi-gloss, lustre 35, RAL 9005
- Grey semi-gloss, lustre 30, RAL 7037
• Non-painted finish and other colours available on request.

Accessories:

Commissioning box:
The ALS is made of galvanized sheet steel. It contains a
removable adjusting damper, fixed pressure measurement
tappings and sound attenuating lining with a reinforced
surface layer, to Fire Resistance Class B-s1,d0 according to EN
ISO 11925-2. Tightness class C on the housing according to
SS-EN 12237.
The commissioning box is also available in a low version with
low overall height. The commissioning box is then supplied
without outlet spigot.
The commissioning box is available with 1 or 2 transitions
between the in- and outlet.
Frame:
SAR K. For aesthetic installation of lowered diffuser installation.
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 available in
separate product sheet for ADAPTER.

Engineering

LOCKZONE Ceiling is available with 595 x 595 mm rectangu-
lar dimensions in all connection sizes. This makes LOCKZONE
Ceiling very simple to install in 600 x 600 mm modular sus-
pended ceilings. The diffuser is fitted to the T-bar framework
and then secured to the duct system. See Figure 2. LOCK-
ZONE Ceiling is also available in low version for installation
where the overall height of the diffuser must be minimized.

Installation

When removing the diffuser face to install the diffuser, insert
a thin object such as a Quick Access card or similar card in
between the face and the diffuser box frame to release the
springs. Slide the card from the centre outward toward the
corners. See Figure 1. The connection branch of the backing
box section is secured to the connecting duct by means of
a screw or pop rivet. For flush mounting in fixed ceilings,
secure the diffuser by means of screws through the sides or
top of the diffuser section to the building structure. Diffusers
and boxes for low overall height must be centred to one
another by means of the rubber seal supplied. Secure the
diffuser in the correct position by screwing the diffuser tight
with sheet metal screws into the underside of the commis-
sioning box. See Figure 3.
When mounting in suspended modular ceilings, it is advi-
sable to use diffusers with 595 x 595 mm outer dimensions.
These must be fitted directly onto the T-bar framework and
then attached to the duct system or commissioning box.
If the ALS commissioning box is used, it should be secured
to the building structure by means of hangers or mounting
straps. The distance between the commissioning box and
the diffuser may be extended up to 500 mm using a normal
circular duct without having to fit longer airflow measure-
ment hoses or damper 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 transparent 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.
Measurement accuracy and requirement on straight duct
before the commisioning box, see Figure 2. The require-
ments of straigh duct depends on the type of disturbance
before the commissioning box. Figure 2 shows a bend, a
dimensional change and a T-piece. Other types of distur-
bances requires at least 2xD straight (D = connection dimen-
sion) for measurement accuracy of ± 10% of the flow.
The K-factor is specified on the product identification plate and
also in the relevant commissioning instructions available at www.
swegon.com.

Maintenance

The diffuser may be cleaned when necessary using lukewarm
water with dishwashing detergent added. Access to the
duct system is possible by opening the diffuser face. If the
ALS commissioning box is used, the distribution plate must
be moved to the side enable you to take hold of the damper
unit and turn it to release it from its mounting bracket. See
Figure 4.

Environment

The Declaration of construction materials is available at
www.swegon.com.
20220614 Swegon reserves the right to alter specifications.
LOCKZONE Ceiling
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