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DuoVent 150/200/250/315/355/400 EC
www.ventilation-system.com
Duct fans are designed for use with round air ducts. The units are installed in the gap between the ducts. Installation is only possible in
the horizontal position, taking into account the direction of air flow, which is indicated by an arrow on the casing.
Installation of DuoVent 150 EC, DuoVent 200 EC, and DuoVent 250 EC models is carried out at 4 points to the mounting brackets.
The DuoVent 315 EC, DuoVent 355 EC and DuoVent 400 EC models each have 6 mounting brackets (see the figure in the “Technical data”
section).
It is recommended to use anchor threaded rods with nuts to fix the fan unit to the ceiling. Fasteners for fan mounting are not included
in the delivery set and should be ordered separately. While choosing fasteners consider the material of the mounting surface as well as
the weigh of the fan unit, refer to the “Technical data” section.
Fasteners for unit mounting should be selected by the service technician.
The safety cables on the removable service panels can be moved to the opposite side of the casing for the convenience of service work,
depending on the installation location of the fan unit.
MOUNTING AND SET-UP
WHILE INSTALLING THE UNIT ENSURE CONVENIENT ACCESS FOR SUBSEQUENT
MAINTENANCE AND REPAIR.
BEFORE MOUNTING MAKE SURE THE CASING DOES NOT CONTAIN ANY FOREIGN
OBJECTS (E.G. FOIL, PAPER).
Nuts
Washer
Vibration-absorbing insert
Threaded rod
Caution!
• To get the best performance of the unit and to minimize turbulence-induced air pressure losses, connect the straight air duct section
to the spigots on both sides of the unit while installing. Minimum straight air duct length: equal to 1 air duct diameter on intake side
and 3 air duct diameters on outlet side
• If the air ducts are too short or not connected, protect the unit parts from ingress of foreign objects. To prevent uncontrollable access
to the fan the spigots may be covered with a protecting grille or other protecting device with mesh width not more than 12.5 mm.
