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B AVD.. and B VAR.. – Smoke Extraction Fans F300/F400/F600
Installation and Operating Instructions
– Attenuator
Figure 9: Duct installation with intake and outlet-side attenuators RSD... F400 with mounting brackets MK. The intake-
side attenuator must be mounted at the inlet, and the outlet-side attenuator on the outlet together with the flexible
connectors.
– Backdraught shutter
Automatic backdraught shutter RVS... F400 with spring reset:
Horizontal installation possible in any direction, vertical installation possible with upward flow.
3.2 Forced ventilation via centrifugal cooling air fan for F600 types
The motor cooling for the Helios F600 smoke extraction fans takes place in both smoke extraction and ventilation mode
via separate centrifugal cooling air fans (types B KLG, accessories). These cooling air fans are monitored in ventilation
mode by flow monitors (type SWE, accessories).
– Ventilation mode
The cooling air fan must be activated simultaneously with the smoke extraction fan in ventilation mode. If the airflow
monitor signals a fault, then it is no longer guaranteed that the smoke extraction fan is supplied with sufficient cooling
air. In order to prevent damage to the smoke extraction fan, it must be immediately deactivated and a fault signal must
be issued.
– Smoke extraction mode
The cooling air fan must be activated simultaneously with the smoke extraction fan in smoke extraction mode. If the
airflow monitor or the smoke extraction fan motor protection device signals a fault, smoke extraction operations must
not be interrupted. A fault signal must be issued. The smoke extraction fan will run until electromechanical destruction.
Flexible connector
STSB
Extension duct
VR
Fan
B VAR
Vibration dampers
Duct 2.5 x D
Mounting bracket
Protection
grille
Counterflange FR
Suction nozzle
ASD-SGD
Fig.7
Fig.6
Fan
B VAR
Flexible connector
STSB
Vibration dampers
Protection
grille
Suction nozzle
ASD-SGD
Extension duct
VR
Duct
Counterflange FR
Mounting bracket
Vibration dampers
Vibration dampers
STSB
Flexible connector
STSB
Extension duct
VR
Flexible connector
STSB
Duct
Duct
Duct
Fan
B AVD
Fan
B AVD
Mounting bracket
Extension duct
VR
Fig.8
Fig.9
Duct
Flexible connector
STSB
Mounting bracket
Attenuator
RSD
Attenuator
RSD
B AVD
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EN