Ventilator: DTV450-4-1FCDTV450-4-1FC
Desired output:
qv = 1100 l/s (3960 m3/h) and pt = 200 Pa

Capacity data
SFP curve (J/m3)
Operating curves
LW1 |
|
|
I: 3 II: 8 |
I: 4 II: 1 |
-2 |
-6 |
-13 |
-16 |
-21 |
LW3 |
6 |
|
I: 0 II: 7 |
I: 8 II: 6 |
-1 |
3 |
-4 |
-13 |
-20 |
LpA3 |
|
-22 |
|
|
|
|
|
|
|
Reading:
Read off LWA1 (extract duct) on curve.
LWA1: 72 in range I (marked with red dot on diagram)
Suction side (outdoor air/extract air)
LWA1 read off in range I |
72 |
Correction factor KW (LW1) read off on diagram |
3 |
4 |
-2 |
-6 |
-13 |
-16 |
-21 |
Sound output level suction side LW1 |
75 |
76 |
70 |
66 |
59 |
56 |
51 |
Surroundings (sound output)
LWA1 read off in range I |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
Correction factor KW (LW3) read off on diagram |
0 |
8 |
-1 |
3 |
-4 |
-13 |
-20 |
6 |
Sound output level pressure side LW3 |
72 |
80 |
71 |
75 |
68 |
59 |
52 |
78 |
Surroundings (sound pressure)
LWA1 read off in range I |
72 |
Correction factor KpA (LW3) read off on diagram |
-22 |
Sound pressure level surroundings LpA3 |
50 |