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ENGLISH
9 . 4
Measurement of the air flow and pressure - Check the K coefficient
Pa
The fan of the KSDR ECOWATT
®
is equipped with a differential pressure
sensor, connected to the controller.
KSDR ECOWATT
®
48 to 200 = 0 - 3000 Pa and a signal of 0.5 - 4.5 Vdc.
The pressure sensor measures the static pressure difference before the
suction chamber and in the suction cone.
The air flow can be calculated from the following equation: Qv = K x √∆Pa
Qv = flow in m
3
/h; the K coefficient takes into account the specific char
-
acteristics of each fan.
Access to adjustement
program
O K
.
8
7
9
4
5
3
2
1
Enter PIN code:
Cancel
11 11
Enter PIN code: 1111
and select: OK
Setting
Ventilation mode
Select next screen
Menu screen:
Pass word:
Control mode adjustement:
Control mode adjustement:
K-constant : 148
Fan featureype
Preassure sensor : 3000 Pa
Setting
To exit from
a screen, press
the icon
in the upper
righthand corner
of the screen
6
0
21.4°C
2500 m3/h
Run mode : OK
Maintenance needed
Main screen
Access to adjustement
menu
2012-06-26 14:02
Menu
CAV
COP
VAV
K SD R EC O W A T T F A C T O R Y SET T INGS
U n i t
Fan coefficient K
P r e s s u r e s e n s o r
P B a n d ( m
3
/ h )
I T i m e ( s )
Si g n a l ( V )
R a n g e ( P a )
K SD R 4 8
142
0,5 - 4,5
0 - 3000
8000
8
K SD R 8 8
210
0,5 - 4,5
0 - 3000
20000
20
K SD R 1 2 0
281
0,5 - 4,5
0 - 3000
20000
20
K SD R 1 6 0
348
0,5 - 4,5
0 - 3000
25000
20
K SD R 2 0 0
480
0,5 - 4,5
0 - 3000
35000
20