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Sizing
• Sound pressure level dB(A) applies to rooms with 10 m
equivalent sound absorption area.
• Sound attenuation (DL) below is shown in the octave
band. Orifice attenuation is included in the values.
• The throw l
is measured under isothermal conditions.
0,2
• The recommended maximum permissible temperature
below room air temperature is 14 K.
• For calculating the width of the air stream, air velocities
in the occupied zone or sound levels in rooms with
other dimensions, please refer to our web calculation
softwares available for download at www.swegon.
com.
Sound Data
LOCKZONE C – Supply air – Air diffusers only
Sound power level L
(dB)
w
Table K
OK
Size
Mid- frequency (Octave band) Hz
LOCKZONE C 63 125
250
125-400
-2
-2
-2
125-600
-5
-2
2
160-400
-3
-1
-1
160-600
-7
-2
1
200-500
0
-1
-1
200-600
-2
-1
0
250-600
-3
-2
0
315-600
-6
-1
1
400-600
0
-2
2
Tol. ±
2
2
2
LOCKZONE C – Extract air – Air diffuser only
Sound power level L
(dB)
w
Table K
OK
Size
Mid- frequency (Octave band) Hz
LOCKZONE C
63 125
250
250-600
-4
3
3
315-600
-6
0
3
400-600
-1
-4
0
Tol. ±
2
2
2
500
1000 2000
4000
8000
0
2
-9
-24
-27
6
-4
-14
-27
-24
0
2
-10
-25
-27
6
-3
-16
-28
-24
1
2
-11
-26
-25
5
-1
-16
-28
-25
3
1
-11
-27
-27
2
1
-11
-27
-25
3
1
-9
-22
-23
2
2
2
2
500
1000 2000
4000
8000
1
0
-4
-13
2
0
-5
-13
1
1
-6
-19
2
2
2
2
L
= Sound power level
2
W
L
= Sound pressure level dB (A)
p10A
K
= Correction for producing the L
ok
L
= L
+ K
gives the frequency divided octave band
W
p10A
OK
Sound attenuation DL (dB)
Table DL
Size
LOCKZONE C
63 125
125-400
20
125-600
20
160-400
19
160-600
19
200-500
19
200-600
19
250-600
16
315-600
14
400-600
13
2
Tol. ±
2
Sound attenuation DL (dB)
Table DL
Size
LOCKZONE C
63 125
-21
250-600
16
-21
315-600
14
-24
400-600
13
2
Tol. ±
2
20220614
Swegon reserves the right to alter specifications.
LOCKZONE Ceiling
value in the octave band
W
Mid- frequency (Octave band) Hz
250
500
1000 2000
15
10
5
3
5
15
10
5
3
5
14
9
4
3
5
14
9
4
3
5
14
8
3
3
4
14
8
3
3
4
11
5
4
2
3
9
4
2
2
2
8
4
1
0
0
2
2
2
2
2
Mid- frequency (Octave band) Hz
250
500
1000 2000
11
5
4
2
3
9
4
2
2
2
8
4
1
0
0
2
2
2
2
2
4000
8000
5
4
5
4
5
4
5
4
5
5
5
5
4
4
3
3
0
0
2
2
4000
8000
4
4
3
3
0
0
2
2
5
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