Performance Data; Noise Data; Design - Helios B AMD Serie Montage- Und Betriebsvorschrift

Installation and Operating Instructions
CHAPTER 3
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INSTALLATION
B AMD
Meduim-Pressure Axial Smoke Extraction Fans – B AMD F300/F400
2 .6

Performance data

The motor type plate gives an indication of the electrical values; which must be coordinated with the local supply net-
work. The fan performances* were established on a test stand according to DIN EN ISO 5801:2010-12; they apply to
the nominal speed and standard design using an inlet nozzle, without a protection guard with unhindered
inflow and outflow and a pressure-side pipe section with 2.5 x diameter length. In this respect, different versions and
unfavourable installation and operating conditions can lead to a reduction of output.
2 .7

Noise data

The noise data* also refers to the aforementioned directive. Casing variations, unfavourable operating conditions and
many other things can lead to an increase in the specified catalogue values. Data that refers to certain distances (1 m, 2
m, 4 m) apply to free field conditions. With regard to installation, the sound pressure level can differ significantly from the
catalogue data, as it is highly dependant on the installation conditions, i.e. on the absorption capability of the room, the
room size among other factors.
3 .0

Design

Series B AMD 315-1120 F300 / F400
The medium-pressure axial smoke extraction fan is a direct-driven fan where the motor is positioned in the airflow. The
air flow direction is pushing via the motor. The axial flow pattern allows a low-loss, linear airflow and ensures a high
fan efficiency. The cylindrical casing with flanges on both ends, integrated guide vane and motor support are made
from powder-coated sheet steel.
The axial impeller with ten spatially curved blades is made from an aluminium casting alloy. The dynamic balancing is
carried out according to DIN ISO 21940-11:2017-03, class 6.3.
Series B AMD 315-1120 F300 / F400
Technical data: IEC three-phase motors, 400 Volt, 50 Hz, IP55, insulation class H, temperature class F300/F400
Overview: Smoke extraction fan B AMD.. with accessory parts (horizontal)
Mounting bracket MK
Duct silencer RSD
Suction nozzle ASD-SGD
Vibration damper SDZ..
for tensile load
B AMD..
5
Protection grille SG
Counterflange FR
Canvas connection STSB
Back-draught
shutter RVS
Extension duct VR (optional)
- Required for protruding motor
see section 3.10
Mounting bracket MK
Vibration damper SDD..
for pressure load
EN
Fig .2