Page 450 - 3K_e-Catalogue 2018

5.2.3 VENTILATED PLENUMS
The ventilated plenum consists of a supporting frame that contains a highly efficient electronic fan used to recirculate the
ambient air.
A gravitational non-return damper can be installed as an accessory, so as to prevent a counter air flow if the fan malfunction.

The ventilated plenum has a front panel attached to it with specific screws and two side panels used for cable routing.

Install the ventilated plenum by placing it above the rectangular silencer.

Position it as follows:
1) Place the ventilated plenum on top of the rectangular silencer.
2) Secure the two elements together with the supplied relevant screw, flat washer and spring washer.
The electronic fan must be powered with 230 Vac single phase 50 Hz. The fan is also equipped with an air flow control system
in order to maintain it constant. The control must be installed during the works according to the instruction manual provided with it.

Materials required
Material Quantity

Ventilated plenums 4

Hex head screws M8 x 20 mm 4
Flat washers Ø 8 mm 4

Spring washers Ø 8 mm 4

WARNING!
The ventilated plenum must be accessed from the front for routine maintenance and to
possibly replace the fan.

INSTALLATION AND MAINTENANCE 21