Swegon EAGLE CCa Installation, Commissioning Maintenance

EAGLE CCa, CRa
Installation – Commissioning – Maintenance
Accessories
Commissioning box:
ALS The ALS box is made of galvanized
sheet steel and contains a removable adjustment damper, fixed
measurement tappings and sound absorbing material*
reinforced surface layer.
The ALS commissioning box is available with one or two differen-
ces in dimension between the inlet and the outlet and also a ver-
sion 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.
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 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 ceiling constructions, secure the terminal
by means of screws into place in the framework through either the
sides or top of the diffuser backing box. The air diffuser and com-
missioning 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 position with self-tapping screws or
pop rivets in the under side of the commissioning box.
For mounting in modular suspended ceilings, it is advisable to
select air diffusers with outer dimensions of 595 x 595 mm. Posi-
tion 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
commissioning cords. See Figures 3 and 4.
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 meas-
uring 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 com-
missioning 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. See Figure 1.
Measurement accuracy and requirement on straight duct before
the commisioning box, see Figure 3. The requirements of straigh
with
)
k
k-factor
EAGLE CEILING
Tomelilla
Sweden
= ⋅
q k
q
( )
=
p
k
Figure 1. Commissioning.
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 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 lukewarm
water with dishwashing detergent added or by vacuum cleaning
using a brush nozzle. The duct system can be reached for clean-
ing after opening the diffuser face. If a type ALS commissioning
box is used, swing the 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 5.
200-600
+ALS 160 -200/125 -200
k = XX / XX
p
2
q = flow reading l/s
p
= current pressure reading (Pa)
k = commissioning factor
20190308
Quick
Access
q
p