DataSheet CAP C201902

8 / 16 | Nozzle Diffusers
Technical Parameters
p
s
Pa Pressure drop
q
V
m
3
/h, l/s Air ow volume
L
WA
dB(A) A-weighted total sound power level
ΔT K Temperature difference Supply air - Room air
L
0,2
m Air throw length with terminal velocity 0,2 m/s
L
x
m Air throw length calculated for specic terminal velocity
x m/s Terminal velocity in range of 0,1 m/s ... 1 m/s
0%,
25%, 50%, 75%,
100%
The plenum box damper positions in pressure drop/noise diagrams are represented as a percentage.
0% is a fully closed damper.
100% is a fully open damper.
Calculation of Air Throw for Different Terminal Velocities
L
x
= L
0,2
× 0,2/x
Legend
ΔT = -10 K ΔT = 10 K
0,75 0,83
Correction Tables
NOTE: For vertical distribution see Systemair DESIGN.
e.g.: L
(ΔT = 10 K)
= L
(ΔT = 0 K)
× 0,83
Tab. 2: Correction factors for horizontal distribution
Tab. 3: Correction factors for horizontal distribution - alternative nozzle settings
e.g. for 3 way horizontal diffusion: L
0,2 (3 way)
= L
0,2 (radial)
× 1,9
4 way 3 way 2 way 1 way
1,40 1,90 2,30 3,30
SIZE 100