Trox VFC series User Manual

5
Operating manual
TROX air terminal units
Type VFC volume ow controllers
VFC
Locking screw
Rotary knob
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
.
Constant volume ow control, volume ow rate
setting with rotary knob
Characteristic for determining the volume ow rate
Constant volume ow rate operation
Volume ow rate setting values
Nominal size
l/s m
3
/h
Value to be set
Value to be set
3 4 5 6 7 8 9 10 3 4 5 6 7 8 9 10
80 6 7 10 14 19 25 33 42 20 26 35 49 68 91 119 150
100 6 10 15 22 30 40 50 65 22 36 54 79 108 144 180 234
125 11 15 22 30 44 60 78 100 40 54 79 108 160 215 280 360
160 18 31 45 60 83 110 146 183 65 110 162 216 300 396 525 660
200 25 40 60 85 120 155 205 250 90 144 216 306 432 558 738 900
250 37 64 100 135 183 240 310 370 133 230 360 486 660 864 1116 1332
Set the set ow rate as follows:
• Determine the setting value for the set ow rate from the
characteristic or the table below.
• Unscrew the locking screw.
• Move the pointer of the rotary knob to the setting value.
• Tighten the locking screw.
Commissioning and wiring
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