Trox VFC series User Manual

8
Operating manual
TROX air terminal units
Type VFC volume ow controllers
Mechanical stop
for 
min
Magnetic gear-
box disengage-
ment
Mechanical stop
for 
max
Position indicator
with magnet
Variable volume ow control, 
min
and 
max
setting with mechanical stops
Characteristic for determining the volume ow rate
Set the set ow rate as follows:
• Determine the setting value for the set ow rate from the
characteristic or the table on page 5.
• Activate gearbox disengagement with magnet. The magnet
is integrated in the removable position indicator
• Make the corresponding settings on the mechanical stops.
• Deactivate gearbox disengagement again and reconnect the
position indicator, see also page 10.
Setting the set ow rate
Each VFC carries a characteristic to determine the setting
values on site (see example, nominal size 160).

min
settings below 3 results in an unregulated airow
dependent on the duct pressure that is not less than 
min-unit
.
U
..

min
- 
max
switching operation, actuator with
mechanical stops
Actuator M01 ... M02
60 100
65
5038 100 150 200 250 300 350 392
VFC 160
18 40 80 120 140
185
160 180
100
200 300 400 500 550450350250150 666600 650
3
4
5
6
7
8
9
10
l/s
cfm
m³/h

Trox VFC series Specifications

General

Brand	Trox
Model	VFC series
Category	Controller
Language	English