SDW a
Installation – Commissioning – Maintenance
20161212
Installation and commissioning
Air diffusers are designed for installation on circular ducts of the size Ø80-125 mm.
The air flow is adjusted by using 7 different throttled modes that are determined by how many magnetic strips are placed in the front. The number of magnetic strips gives different k-factors. The flow is determined through measuring the pressure in the nipple.
Maintenance
The air diffusers can be cleaned, if necessary, using lukewarm water with dishwashing detergent added or using a vacuum cleaner.
Distribution pattern
• Generally, an air distribution pattern should be sought that cover as much of the room as possible.
• Suitable air distribution patterns depend on the placement of the supply air diffuser in relation to the room's design.
Figure 2. Removing the front, press the front outwards to the side and pull straight out.
Click!
A
Figure 3. Assembling the front, press the front straight towards the wall plate unit it snaps into position.
p k
Tomelilla
Sweden
SDW 100
K-faktor:
R0 = 6,2
R1 = 5,8
R2 = 4,9
R3 = 4,2
R4 = 3,0
R5 = 2,0
R6 = 1,0 q
Figure 1. Distribution pattern A = Recommended measurement from the ceiling 100-300 mm measured from the centre of the diffuser.
Sound increase for different installations
Without magnetic strips
Open rows of holes
3 magnetic strips 6 magnetic strips
X
5D +0 dB +2 dB +0 dB +2 dB +0 dB +0 dB
2D +2 dB +4 dB +2 dB +4 dB +0 dB +0 dB
0D +4 dB +6 dB +3 dB +5 dB +0 dB +0 dB
∅ D ∅ D q = k ⋅ p p = q
Figure 4. Commissioning.
X X q = Measured flow l/s p = Current pressure reading (Pa) k = Commissioning factor
SDW
100
100
100
100
80
80
100
100
80
80
80
80
80
125
125
125
125
100
125
125
125
K-Factor
Measurement pressure 5 Pa required to obtain at least
±10 % accuracy on the air flow.
Size
Number of magnetic strips (R)
R0
R6
R0
R1
R2
R2
R3
R4
R5
R3
R4
R5
R6
R5
R6
R0
R1
R1
R2
R3
R4
K-Factor
4.9
4.2
3.0
2.0
2.1
1.0
6.2
5.8
8.7
6.6
6.6
4.1
3.4
4.2
3.0
2.0
1.0
1.0
7.0
6.1
5.2
Application of strips
R0 = Without magnetic strips
R1 = Covers the 3 uppermost rows of holes
R2 = Covers the 3 uppermost and 3 lowermost rows of holes
R3 = Covers the 6 uppermost and 3 lowermost rows of holes
R4 = Covers the 6 uppermost and 6 lowermost rows of holes
R5 = 5 rows in the middle are open
R6 = 2 rows in the middle are open
Dimensions and weights
SDW
Size
(Nominal dim.)
80
100
125
Dimensions (mm)
ØD
79
99
124
Weight (g)
676
661
632
62
104
62
104
212 212
Flow regulation
The air diffuser’s flow can be regulated using magnetic strips that are attached on the inside. See figure 6 to 12 below. A maximum of 6 magnetic strips can be used.
Figure 6.
No magnetic strips (R0).
Figure 10.
4 Magnetic strips. Covers the 6 uppermost and 6 lowermost rows of holes (R4).
Figure 7.
1 Magnetic strip. Covers the 3 uppermost rows of holes (R1).
Figure 8.
2 Magnetic strips. Covers the
3 uppermost and 3 lowermost rows of holes (R2).
Figure 11.
5 Magnetic strips. 5 Rows in the middle are open (R5).
Figure 12.
6 Magnetic strips. 2 rows in the middle are open (R6).
165 165
ØD ØD
Figure 5. Dimensions, SDW
Figure 9.
3 Magnetic strips. Covers the 6 uppermost and 3 lowermost rows of holes (R3).
2
Swegon reserves the right to alter specifications. 20161212
