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Catalog 1.1.1
Swirl diffuser
DAL 358
Concordia University, Montréal, Canada
NAD Klima
Swirl diffuser
DAL 358 model
Description, areas of application and benefits . . . . . . . . . . . . . . . . . . . . DAL 358 1
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAL 358 2
Mode of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAL 358 3
Air flow and direction of air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAL 358 5
Range of application and quick selection . . . . . . . . . . . . . . . . . . . . . . . .
DAL 358 6
Performance diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAL 358 7
Dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAL 358 11
Factor of correction for airflow when reading the balometer . . . . DAL 358 12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAL 358 13
Codification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DAL 358 14
content
1.1.1 DAL 358
C
Cafeteria, CIMA+ ing. , Sherbrooke, Québec
NAD Klima
Swirl Diffuser
Description, areas of application and benefits
DAL 358 Swirl diffuser
The DAL 358 is a high induction
helical (swirl) airflow diffuser with a
circular or square front plate. It has
offset ABS drums and embedded
guiding plates for controlling the air
stream.
The DAL 358 permits optimal configuration of the ventilation system to
meet the requirements of a room.
The offset drums which are integrated into the front plate enable a
variety of airstream configurations,
even after the unit has been installed.
The DAL 358’s technology provides
high speed discharge of air with
relatively low acoustic power.
The helical airstream, the stability
and the high induction generated
from the very start of the outlet vent
make the DAL 358 the diffuser of
choice for high air flow rates and
variable air volumes.
Subject to technical changes. Version 06 / 05 / 2015
Areas of application
• Areas with high air flow
• Rest areas
• Offices with partitioned workspaces
• Offices and clean rooms
• Administrative centres
• Computer (server) rooms
• Meeting rooms
• Multi-purpose rooms
• systems with constant or variable
airflow rates
• Entrance halls (vertical air streams)
Benefits
• Rapid reduction of speed and
temperature variations caused by
high induction
• Low acoustic power for high airflow
rates
• Stable helical airflow and a variety of
air streams available in 1,2 or 3
directions
• Offset cylinders allowing 180° airflow
adjustment
• Possibility of adjusting airflows, even
after installation
• Possibility of reducing total airflow
rate as much as 25% in VAV
• Five to seven times as more induction
than a conventional 4-way diffuser
• Possibility of eliminating external
heating sources due to the diffuser‘s
heating abilities.
• Fewer diffusers required
• Allows a reduction in the total
number of units required to circulate
a fixed volume of air.
• Adaptable to systems requiring
constant or variable airflows
1.1.1
DAL 358
1
Swirl Diffuser
NAD Klima
Configuration
Both the square and circular front
plates have slots for the offset drums
arranged in a star pattern.
The diffuser is mounted on a plenum.
Up to a nominal size of 600, the front
plate is secured by a concealed
middle screw. In the case of the DN
600 however, a reinforcement crossbar is required to secure the plate.
Only the DN 800 has a different fastening configuration; screws are fastened at the 4 corners of the plate.
DAL 358-Q-300/400
DAL 358-Q-300/603
DAL 358-R-300
DAL 358-Q-400/400
DAL 358-Q-400/603
DAL 358-R-400
DAL 358-Q-500/502
DAL 358-Q-500/603
DAL 358-R-500
DAL 358-Q-600/603
DAL 358-R-600
DAL 358-Q-800/800
2
1.1.1
DAL 358
DAL 358-R-800
Subject to technical changes. Version 06 / 05/ 2015
NAD Klima
Swirl Diffuser
Mode of operation
The offset drums, 100 mm in length,
can be rotated a full 360°. In their
initial position, (2 1 and 6 5), the
airflow will deviate by 90° with a
constant discharge of air. Turning
the cylinders to positions 1 A and F 6,
for example, will increase the section
without tapering off or reducing the
airflow. Adjustments 2 1 and 6 5 are
standard for North America because
of the multiple VAV applications
(Variable Air Volume).
The offset drum, aided by the shape
of the slots, creates a powerful channel into which the air is drawn. When
nearing the exit of the cylinder, air
depression takes place.
Controlling the direction of airflow
Air flow
Indexing range
min. max.
Helical (swirl) air stream
When positioning all the cylinders on 2
1, a rotating air stream is produced
below the ceiling in a helical stream,
creating a strong induction current.
(Standard setting).
Direction of airflow
Drum position 1 A
One-sided air stream
This one-sided airflow is obtained
by positioning all of the drums in
position 2 1.
Airflow behaviour
The DAL 358 frontal plate has slots
arranged in a characteristic star
pattern. Turning the cylinders individually can produce a multitude of
airstream patterns. In this manner,
obstacles to efficient air flow can be
avoided (lamp bases, changes in
ceiling
height,
architectural
columns, etc....). When installing in
high ceilings (>5 m), a portion of the
drums in the centre of the diffuser
must be directed to produce a
vertical blast (see figure 1). Use of the
DAL 358 does not require a closed
ceiling installation in order to
produce a stable horizontal airflow.
Drum position 2 1
Drum position 4 3
Despite the variety of air flow directions, all stream options have
approximately the same acoustic
power and pressure drop because of
the specific design of the offset
drums.
Two-sided air stream
This two-sided airflow is obtained by
positioning half the drums in position
2 1 and the other half of the drums in
position 6 5.
Drum position CD
Figure 1
Subject to technical changes. Version 06 / 05 / 2015
1.1.1
DAL 358
3
CIMA+ ing. , Sherbrooke, Québec
Swirl Diffuser
NAD Klima
Airflow and direction of air
Vmax = Vmax simulation X f
∆Pt = ∆Pt simulation X f
LWA[dB] = LWA[dB] simulation X f
DN 600 360° helical airflow
DN 600 3 directions covering 180°
ST = Standard helical airflow (21)
HL = Flow rise (>5m)
(exterior 21 and center CD )
VF = Vertical airflow (CD)
DN 300
3W = Airflow 180° (wall) (21 - 34)
DN 400
DN 400
DN 500
DN 500
DN 600
Correction factor : f
VMAX
∆Pt
LWA[dB]
1.0
1.0
1.0
DN 800
DN 600 2 airflow direction at 90˚
DN 300
1.4
1.0
1.0
DN 600 2 opposing directions
2W =Airflow on two opposing directions (21 - 56)
Subject to technical changes. Version 06 / 05 / 2015
1.2
1.3
1.1
DN 800
DN 600 2 directions in the corner
DN 300
2L = Airflow in two directions in an L shape
(2 streams) (21)
DN 400
DN 500
DN 500
DN 600
DN 600
Correction factor : f
DN 800
DN 300
VMAX
∆Pt
LWA[dB]
1.7
1.0
1.0
DN 800
DN 600 1 direction
DN 300
1W =Airflow on one side (21)
DN 400
DN 400
DN 500
DN 500
DN 600
DN 600
Correction factor : f
1.7
1.0
1.0
VMAX
∆Pt
LWA[dB]
DN 400
Correction factor : f
VMAX
∆Pt
LWA[dB]
DN 600
Correction factor : f
2C = Airflow 90° (corner) (21)
VMAX
∆Pt
LWA[dB]
DN 300
Correction factor : f
DN 800
VMAX
∆Pt
LWA[dB]
2.0
1.0
1.0
DN 800
1.1.1
DAL 358
5
Swirl Diffuser
NAD Klima
Range of application and quick selection
Nominal
size
DN
4
4
4
6
228
366
685
609
134
215
403
358
0.2
0.8
2.8
2.2
0.1
0.5
1.5
1.2
1.4
1.4
1.9
1.7
25
25
32
26
36
36
43
39
DN 500
DN 500
DN 600
DN 800
2
4
4
4
457
366
685
914
269
215
403
537
0.1
0.1
0.8
1.6
0.1
0.1
0.6
0.9
1.7
1.4
1.9
1.8
36
25
32
28
42
36
43
44
9
15
27
37
0.5
0.8
1.5
2
4.0 m
(13 ft)
9
15
27
37
0.5
0.8
1.5
2
**Lw(dBA) : The absorption of the room is not considered.
6
Column for any room from that height at the same volume of air by diffuser
Column in reference to the example
Specifications :
Location of the diffusers
- Space: L x W x H = 10 m x 10 m x 2.44m
( 33 ft x 33 ft x 8 ft)
- Total air flow in the room : 1550 cfm 4
- Initial temperature difference: ∆T = -10°C
- Air velocity : 1.8 m = 0.25 m/s (50 cfm)
- VAV : 25%
Using the data on ceiling height 1 and airflow
rate by surface (m2 or sq. ft.2), 2 choose the
nominal size (DN) of the DAL 358. 3
Divide the total airflow rate of the room 4 by the
ideal value 5 of the air flow rate for the selected
size. Adjust the quantity of diffusers to achieve
symmetry in the room while respecting the
maximum airflow rate in the optimal setting
range. 6 Be aware of the minimal distance
between diffusers and between diffusers 7 and
walls.
= Optimal range of application
= minimum range of application
(For minimum application in V.A.V.)
Airflow pattern
comfort line
Scale grid: 1 m Blue: Air velocity >= 0.25 [m/s]
= Maximal range of application
(Maximum standard volume for
office building)
(Noise level higher than 33 (43-10) dBA)
opt 540*
300 (12) DN 800
800 X 800
(32 X 32)
opt 360* 5
250 (10) DN 600
opt
.
240*
opt 130*
* Ideal operating value in cfm
opt 65*
150 (6) DN 300
L/s
36
36
43
39
DN 400
DN 500
DN 600
DN 600
3.05 m
(10 ft)
m /h
cfm
25
25
32
26
1.3
2.2
4.2
3.5
DN 400
DN 500
DN 600 3
DN 600
DN 400
1.4
1.4
1.9
1.7
134
215
388
358
0.5
0.8
1.5
2
150 (6)
0.7
1.2
2.2 7
1.8
228
366
660
609
9
15
27
37
DN 500
Acoustic
Power level
Lw(dBA)
4
4
4
6
2.44 m
(8 ft)
1
200 (8)
Pressure
difference
∆P (Pa)
cfm
cfm/sq ft
Connector diameter
ød
mm (in.)
Critical
X
(m)
Min. distance Min. distance
diffuser
wall
(m)
(m)
m3/h
m3/h/m2
2
Airflow by diffuser
Number of
diffusers
Y
Airflow by surface
1.8 m (6 ft)
Height of
the room
10 15 20 24 28 33 37
34 51 68 85 102 119 136
20 30 40 50 60 70 80
47
170
100
70
255
150
94
340
200
132 142
475 510
280 300
165
595
350
188
680
400
235
850
500
283
1020
600
472
1700
1000
Airflow V
6
1.1.1
DAL 358
Subject to technical changes. Version 26 / 06 / 2015
Swirl Diffuser
NAD Klima
Performance diagrams
Important
Acoustic absorption of the room is not
accounted for.
Flow sub-ceiling
·
Airflow Vo
92
cfm
2
m /h
For a comparison with North American values,
reduce the acoustic power by ten (10).
25 30 35 40 45 55 60 = L WA [dB(A)]
882
= L WA [dB(A)]
= LWA [dB(A)]
See example
on page 8
3
1
LWA [dB(A)] =
LWA [dB(A)] =
0
Ft
.40
1.5
.36
3.25
.32
5
.28
5
.24
6.5
.20
33
29.5
26
23
20
16
s
n
mi
ft/ 20
m/
30
13
40
10
60
7
80
0
ax
8
ity
vm
10
lo
c
rfl
ow
Ai
6
5
3.25
Subject to technical changes. Version 06 / 05 / 2015
0
12
ve
6.5
Airflow distance x [m]
8
.16
10
.12
11.5
4
.08
.04
in./H2O
Loss of pressure Pt [Pa]
Airflow distance after conjunction (y [m])
0
14
0
16
0
18 0
20
DAL 358 - 8
1.1.1
DAL 358
7
Swirl Diffuser
NAD Klima
Airflow performance diagrams and example
)
°F
-4°
C
-6°
°(-C8
C
°F)
-8° °C(
C
1
-1 °
1
-12 0°C C(-15 °F)
°C °C(-1 °F)
°C(-2 8°F
2° )
F)
3,5
1,5
1,0
0,7
1,0
0,6
0,8
0,5
0,5
176
235
294
Research:
1. Nominal size of diffuser
2. Acoustic power LWA
3. Pressure drop ∆pt
4. Maximum air velocity at nominal head
height (1.8 m)
5. Maximum temperature variation of
ambient air at nominal head height
6. Critical path of airflow (stream detaching
itself from ceiling when cooling)
2
-1
0,6
118
176
235
294
353
412
471
∆(T
-6
-8
°
°F
-8 C
)
(-1
-1 °C
-1 0°C (-1 1°F)
2° (- 5°
C 18 F)
(-2 °F
2° )
F)
°C
4. At nominal head height y = H - 1.80 = (3.00
m - 1.80 m = 1.20 m) 5 and a horizontal
airflow path of x-1.7 m 6 we observe a
maximum air velocity of 0.18 m/s 7
rat
u
re
d
iffe
ren
ce
∆T
-4
3,5
pe
Te
m
Te
m
pe
2,5
Critical airflow distance xcrit [m]
2,0
0,8
0,7
0,6
0,5
m3/h
cfm
60
· 118
Airflow V
176
235
294
353
471
588
Solution:
1. From the "Range of Applications" diagram
we note the nominal size of DN600 1
2. 3. From the "Airflow from Ceiling" diagram
with the DN 600 diffuser and an airflow rate
of 600 m3/h 2 we observe the following
values: Acoustic power: 39dB 3 (29 dB when
factoring in room absorption)
Total pressure drop: 25 Pa 4
DAL 358 - DN 800
0=
∆T
ce
iff
er
en
re
d
)
°F
8
F)
°C°C (-1
-8 °C°C -22°
(
0
-1 °C°C
0,7
·
Airflow V
1,5
Critical airflow distance xcrit [m]
en
er
diff
F)
5°
(-1
H= 3.00 m
VO = 600 m3/h
∆T0 = -10°C
2 x 1.7 = 3.4m
1,0
m3/h
cfm 60
353
ra
tu
10
10
°C°C
-6
F)
1°
(-1
1,5
DAL 358 - DN 600
2,5
-
0=
-4°
-6° C (8°
-8° C
(-1 F)
C
-1
1
-12 0°C (-15 °F)
°C (-1 °F)
(-2 8°F °
2°F ) C
)
118
(-8
2,0
Critical airflow distance xcrit [m]
i
2,0
Critical airflow distance xcrit [m] DN300
2,5
1,5
60
e
ur
at
er
=
C
4°
p
m
Te
1,7
·
Airflow V
∆
ce
2,5
2,0
m3/h
cfm 20 30
T0
3,0
ére
Ten
mce
ped
raet
utre
em
dipff
eérre
antcu
ere
∆T
0∆=
Critical airflow distance xcrit [m] DN400
2,5
Specifications :
Height of the space:
Airflow rate by diffuser:
Maximum cooling:
Distance between diffusers:
DAL358
DAL
358
- DN
- DN
500500
DAL 358 - DN 400 / 300
5. For an airflow distance of (x+y) = 1.70 m +
1.20 m = 2.90 m 8 and a DN 600, we
observe a temperature ratio of 0.062°C . 9
The maximum temperature variation reached
between room air and air flow at head height
is 0.062 x 10°C = -0.62°C.
1,0
0,6
0,4
0,3
m3/h
cfm
118
·
Airflow V
176
235
353
471
588
882
1176
Temperature ratio
6. From the "Critical Distance of Airflow"
diagram and an airflow rate of 600 m3/h with
an initial temperature variation of ∆T0 = -10°C
we come to a critical distance of airflow
Xcrit = 2 m. 10
∆Txy
∆T
9
8
x bzw.
w. x + y [m]
8
1.1.1
DAL 358
300
Subject to technical changes. Version 18 / 06 / 2015
Laval University, Québec, Canada
TVA, Montréal, Canada
Swirl Diffuser
NAD Klima
Dimensions and weight
Dimension / weight
Square plenum
Dimension / weight
Round plenum
Size DN
300/400
500
600
800
Size DN
300/400
500
600
800
Size A
400
502
603
800
Size ØA
400
500
600
800
Size B
76
82
68
66
Size B
76
82
67
66
Size C
251
312
347
411
Size C
252
312
347
411
Size ØD
150
200
250
300
Size ØD
150
200
250
300
Size E
12
12
12
12
Size E
8
8
8
8
Size F
387
488
584
790
Size Ø F
392
492
592
792
4.2
6.2
8.5
14.1
0.0347
0.0508
0.0080/0.0134
7.1
11.5
14.6
0.0214
0.0347
0.0508
square plenum - lateral inlet
Weight [Kg]
Aeff [m2]
0.0214
round plenum - lateral inlet
Suspension holes, 3 X ø6 mm
Suspension holes, 4 X ø6 mm
Flow control
(optional)
ØD
Perforated metal sheet
E
E
B
Perforated
metal sheet
B
C
Flow control
(optional)
0.0080/0.0134
C
Aeff [m2]
5.2
ØD
Weight [Kg]
Adjustment
14
Adjustment
8
ØF
ØA
F
A
round plenum - top inlet
square plenum - top inlet
ØD
ØD
Flow control
(optional)
Flow control
C
C
(optional)
Perforated
metal sheet
E
E
Perforated
metal sheet
Adjustment
F
A
Subject to technical changes. Version 06 / 05 / 2015
8
ØF
ØA
Adjustment
1.1.1
DAL 358
11
NAD Klima
Swirl Diffuser
Airflow correction factor for reading
an Alnor (model 9407) balometer.
DAL 358 - DN 400
Adjustment: Helical - adjustment 21
20
30
40
50
Air flow - Balometer (cfm)
These correction factors are appropriate
for a ventilation system comprising of at
least 3 diffusers after a VAV unit or box.
For less than 3 diffusers with an automatic airflow rate setting, correction factors
are lower than stated.
As indicated in the ALNOR manual,
Appendix B - "Capture Hood Flow
Resistance", the instrument's manufacturer recommends taking a reading at the
ventilation duct and comparing it with
one taken under the diffuser, with or
without the balometer, in order to
determine the correction factor.
To avoid having to perform this
procedure, we have provided the correction factors needed for all DAL 358
diffuser models
Balometer (cfm)
Factor
20
29
60
57
70
70
80
90
74
30
60
75
Factor
80
300
250
200
150
100
120 140 160 180 200 220 240 260 280 300 320
Air flow - Balometer (cfm)
130
250
Balometer (cfm)
1.02 1.04 1.08 1.12 1.13
Factor
280
340
80
98
115
100 120
94
185 270
140
150
310
330
350
400
Identification Chart
650
DN
X (mm)
Y(mm)
550
300
603
355
500
400
603
355
450
500
603
455
400
600
603
552
800
803
755
350
Y
300
X
250
250 275 300 325 350 375 400 425 450 475 500
Balometer (cfm) 360 392 415 446
Factor
480
1.11 1.14 1.20 1.23 1.25
Actual flow (cfm) 400 450 500
DAL 358
140
1.06 1.08 1.11 1.16 1.21
Air flow - Balometer (cfm)
1.1.1
132
1.00 1.02 1.04 1.06 1.07
Actual flow (cfm) 100 200 300
600
12
140 150
Air flow - Balometer (cfm)
DAL 358 - DN 800
Adjustment: Helical - adjustment 21
Actual flow at diffuser (cfm)
120
450
400
350
300
250
200
150
100
50
140 180 220 260 300 340
100
120 160 200 240 280 320 360
300
Actual flow (cfm) 150 200 250
110
DAL 358 - DN 600
Adjustment: Helical - adjustment 21
350
Factor
100
Actual flow (cfm) 80
400
147 192 230
90
Balometer (cfm)
DAL 358 - DN 500
Adjustment: Helical - adjustment 21
Balometer (cfm)
80
Air flow - Balometer (cfm)
1.00 1.01 1.05 1.06 1.07
Actual flow (cfm) 20
Actual flow at diffuser (cfm)
To ensure adequate balancing of DAL 358
type diffusers, it is recommended to use
the airflow rate correction factors which
are equivalent to the resistance generated by the balometer.
160
150
140
130
120
110
100
90
80
70
Actual flow at diffuser (cfm)
90
80
70
60
50
40
30
20
10
10
Actual flow at diffuser (cfm)
Actual flow at diffuser (cfm)
DAL 358 - DN 300
Adjustment: Helical - adjustment 21
550
600
Subject to technical changes. Version 06 / 05 / 2015
NAD Klima
Swirl Diffuser
Specifications
1 - Description and physical characteristics
1.1 DAL 358 helical (swirl) diffusers are made of 20-gauge
satin finished steel. Integrated slots in the frontal plate
(circular or square) hold offset drums ensuring a high
induction airflow rate and generate a thin stream of air at
high speed and low noise level.
1.2 The eccentric drums, 100 mm in length, can be individually rotated by as much as 360°, each one on its own
axis, inside the front plate.
This design allows for a multitude of configurations
covering the full range of air diffusion requirements
(vertically 180° and horizontally 360°).
The eccentric drums meet requirements of the National
Building Code, Section 3.1.13.2, and certified according
to the standard ASTME 162 "Surface Flammability of
Materials Using a Radiant Heat Energy Source".
1.3 The diffuser's casing is adapted to fit regular North
American suspended ceilings or classic gypsum ceilings.
1.4 Every front plate is painted inside and out with polyester
TGIC-free powder coated paint, providing a smooth,
easy-to-clean finish. The architect or client may choose a
standard colour from the RAL colour chart or from a
number of special-order colours.
1.5 Offset drums are available in black, cream or white.
2 - Performance
2.1 The diffuser requires a strong induction rate in order to
maintain an acceptable temperature differential in the air
stream. The ratio of the temperature difference between
the air projected by the diffuser into an occupied space
and the gap between initial temperature of the room.
(∆TXY = TR - TXY) and the initial temperature difference
(∆TO = TR - TO). This correlation must perform at a
minimum as: ∆TXY / ∆TO ≤ 0.1.
2.2 The diffusers' performance must be confirmed by
simulation software. This software indicates the pressure
drop, acoustic power it generates as well as showing a
cross-sectional view illustrating the critical airflow path
in cooling, isothermal and heating modes. The software
can demonstrate a nominal velocity in an occupied zone
of 0.15 m/s (30 ppm) when requested by the engineer
and can adapt to different needs from 20% to 100% of
the specific input airflow rate.
2.3 The diffuser must ensure full comfort in situations where
there is a variable airflow rate, and be able to accommodate as much as a 25% reduction of the nominal airflow
rate.
3 - Connections
3.1 The diffuser is delivered with a plenum made by the
diffuser’s manufacturer. The plenum is constructed from
24-gauge galvanized steel and includes a perforated
stabilizing (equalizing) plate which regulates the airflow
rate. Four suspension points which adhere to paraseismic standards are integrated in the plenum. The inlet
collar is centered on the side or on the top of the
plenum, and its size is calibrated to accommodate the
airflow rate.
The joints of the plenum are sealed with caulking which
is free of VOC (volatile organic compounds) emissions.
4 - Balancing
4.1 Balancing of DAL 358 diffusers must be performed by a
professionally certified technician, trained in ventilation
system balancing.
4.2 The technician must take into consideration the correction factor for use of a balometer when regulating air
volume.
5 - Quality required: NAD Klima, model DAL 358
Subject to technical changes. Version 02 / 07 / 2015
1.1.1
DAL 358
13
NAD Klima
Swirl Diffuser
Codification
Product
DAL 358
Q = Square
R = Round
300, 400, 500, 600, 800
Nominal dimension
400, 502, 603, 800
(603 for 24''X24'' T-bar)
ST = Standard helical airflow (21)
HL = Flow rise (>5m) (exterior 21 and center CD)
VF = Vertical airflow (CD)
1W = Airflow on one direction (21)
2W = Airflow in two opposing directions (21 - 65)
2L = Airflow in two directions in an L shape (21)
2C = 90° airflow (corner) (21)
3W = 180° airflow (wall) (21 - 65)
RB = Roller nozzles (return)
W
C
B
X
=
=
=
=
Air flow
White drum and receptacle (RAL 9003)
Cream drum and receptacle (RAL 9010)
Black drum and receptacle
Without drum
9003 = White
9010 = Cream
00SB = Solar Black (Standard black matte)
00SM = Silver Mat (Standard metallic grey )
_____ = RAL color (write color number of RAL)
Drum and
receptacle color
Diffuser color
S = Plenum with lateral input
T = Plenum with top input
X = Without plenum
Plenum
I = With acoustic insulation
A = With closed cell acoustic insulation
X = Without insulation
Acoustic insulation
F = With fireproof insulation et fireproof damper
X = Without fireproof insulation et fireproof damper
D = With axial damper (for side inlet only with standard adjustment)
R = With radial damper (standard for top and side inlet) *
X = Without damper
DAL358 - Q - 300 - 603 - ST - W - 9003 - S - I - F - D
Annotation
Outer size
Fireproof insulation
Balancing damper
Example
Notes :
Blue : Standard, in stock
*Not available on oval collar
14
1.1.1
DAL 358
Subject to technical changes. Version 25 / 06 / 2015
Concordia University, Montréal, Canada
www.nadklima.com
NAD Klima 144, Léger Street, Sherbrooke (Québec), Canada J1L 1L9 • T : 819 780-0111 • 1 866 531-1739 • F : 819 780-1660 • info@nadklima.com