Recommended Tightening Torques For Mounting Screws - Helios B VD Montage- Und Betriebsvorschrift

Installation and Operating Instructions
B VD – Smoke exhaust roof fans F400/F600
Check the minimum gap between the inside of the centrifugal impeller and the outside of the nozzle according to the
following table before installation:
Type
B VDD 315
B VDD 355
B VDD 400
B VDD 450
B VDD 500
B VDD 560
B VDD 630
B VDD 710
B VDD 800
B VDD 900
A
A
If the observed values do not correspond to the specified dimensions, the fan must not be installed or opera-
ted . For questions, please contact Helios customer service "TGA".
3 .6 Maximum permissible vibration limits according to ISO 14694 / ISO 10816-3
– Vibration monitor
When using vibration monitors, these must not deactivate the smoke exhaust fan in a smoke extraction
situation!
Commissioning
Permanently inst. Flexible installation Permanently inst. Flexible installation Permanently inst. Flexible installation
[mm/s] [mm/s]
4 .5
– Installation of a vibration monitor
The vibration monitor (on-site) must be installed on the casing of the fan and it must not lie in the turning range zone
of the impeller.
The air gap (see Fig . 10) must not be affected by the installation of the vibration monitor!
3 .7 Recommended tightening torque for mounting screws
The following tightening torques for connection of mounting nuts and screws must be used:
Screw size
M5
M6
M8
M10
M12
M16
TK Minimum gap (mm)
F400/F600
F400/F600
F400/F600
F400/F600
F400/F600
F400/F600
F400/F600
F400/F600
F400/F600
F400/F600
max. permissible vibration limits for fan output < 75 kW
Alarm
[mm/s]
6 .3 7 .1
Tightening torque for screws
Hexagon head screw
galvanised
Strength 8 .8
6 Nm
10 Nm
25 Nm
49 Nm
85 Nm
210 Nm
11
2.5
3.0
3.5
3.5
4.0
4.5
5.0
5.5
6.5
7.0
DETAIL A
MAßSTAB 1 : 5
DETAIL A
MAßSTAB 1 : 5
Luftspalt X
Air gap X
Luftspalt X
Deactivation
[mm/s] [mm/s]
11 .8 9 .0
Hexagon head screw Hexagon head screw
galvanised
Strength 10 .9 A2/A4 Strength A70
9.5 Nm
16.5 Nm
40 Nm
79 Nm
137 Nm
338 Nm
EN
Fig .10
[mm/s]
12 .5
stainless steel
5.1 Nm
9 Nm
22 Nm
44 Nm
74 Nm
183 Nm