Centre Of Gravity Position; Recommended Tightening Torques For Mounting Screws; Electrical Connection - Helios B AMD Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
EN
m
ATTENTION
m
WARNING
Meduim-Pressure Axial Smoke Extraction Fans – B AMD F300/F400
– 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 .12) must not be affected by the installation of the vibration monitor!
– Selection of vibration dampers
In order to optimally dampen the vibrations created by the rotating components in the fan, the correct selection of the
vibration damper is crucial. The design is based on the determined total mass of the fan incl. mounting parts to be
dampened. In this respect, the individual net weights of the components must be added together.
Example:
B AMD 900/4 30 kW F300 as Z unit
1) Determination of the mass to be dampened
B AMD 900/4 420 kg
B AMD 900/4 420 kg
MP-Z 900 68 kg
VR 900 34 kg
MK 900 18 kg
Total weight 960 kg
3 .7 Centre of gravity
A motor protrusion arises depending on the size and motor power and thus an unbalanced centre of gravity outside of
the casing. An extension duct (Type VR..) must be used (Fig.13) to determine the centre of gravity. The weight infor-
mation for the respective types can be found on the type plate!
CORRECT!
STSB
3 .8 Recommended tightening torque for mounting screws
The following tightening torques for connection of mounting nuts and screws (grade 8.8) are to be used:
The impeller mounting on the motor shaft is secured against loosening at the factory with liquid screw securer .
Screw size
M6
M8
M10
M12
M16
M20
3 .9

Electrical connection

m WARNING
Before any maintenance or installation work or before opening the terminal compartment, the device is to be fully
isolated from the power supply and secured against unintended restart!
– The electrical connection must be carried out only by a qualified electrician in accordance with the data in the termi-
nal box and enclosed wiring diagrams.
– The relevant standards, safety regulations (e.g. DIN VDE 0100) and the technical connection conditions of the local
electricity supply companies must be observed.
– The information on "Electrical circuit systems" in the DIBt approval (section 2.1.8) must be observed.
STSB
(centre of gravity)
Tightening torque for screws in Nm
F300 – F400
Mounting
fan / motor above central screw
Hexagon head screw
galvanised
Strength 8.8
10
25
49
85
210
425
10
INCORRECT!
STSB
STSB
(centre of gravity)
F300 – F400
Mounting
WEG-Motor / flange plate
Hexagon head screw
galvanised
Strength 8.8
9
20
40
70
170
–
Fig .13