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TF5814GB_E
Aereco S.A.
0
100
200
300
400
500
600
700
0
1
2
3
4
5
6
7
8
9
10
Position
Airflow in m
3
/h
6.4. ASSEMBLY OF MOTORISED VALVES AND REGULATION OF NOMINAL FLOW
A motorised valve is composed of a VMX Drive and its plate (VMX VFT) mounted on a VFC TROX
valve.
6.4.1. REGULATION OF NOMINAL FLOW
On each VFC valve, a characteristic flow curve is attached in order to determine the configurations
on site.
The minimum flow should not be regulated to a value lower than position 3
, at the
risk of seeing the airflow no more controlled. The holding pins supplied with the VMX VFT adaptor
plate enable the valve opening to be held between position 0 and position n
(n must necessarily
be between 3 and 10)
. The flow in position n on the open valve is given on the characteristic flow
curve placed on the valve (for example, if n = 6 then airflow = 210 m
3
/h on this valve model).
6.3. ASSEMBLY
·
Place each valve as far as
possible from the diffuser
to which it is connected
(recommended minimum: three
times the diameter) to limit noise
transmission. A housing treated
acoustically is recommended.
Configure the base for the VFR or VFC valve according to the desired
nominal flow with the help of the spurs provided. The spurs should be
sunk right in, without spaces.
Example (see the curve given in the example, in red): to achieve a nomi-
nal flow of 210 m3/h on this valve, add the necessary spurs required to
block the shutter on position 6 as shown in the diagram below.
Valves
