• Short casing in steel sheet, with fi xing fl anges manufactured according to UNI ISO 6580-EUROVENT standard. Protected against atmospheric agents by epoxy paint.
• High performance axial impeller with aerofoil profi le blades, totally made in die-cast aluminium. Balanced according ISO 1940. Variable pitch angle in still position.
• Execution 4 (with impeller directly coupled to motor with feet) and airfl ow from impeller to motor.
• Asynchronous three-phase motors according to international standards IEC 600034, IEC 60072, EMC 2004/108/CE, LVD 2006/95/CE, CE marked, IP 55, class F or H, F200, F300 or F400 certifi ed according to the European Directive EN 12101-3.

The CC-HT series is the solution to problems related to the evacuation of high temperature fumes, therefore ideal for emergency exhaust in case of fi re (a solution mandatory in fi re safety norms of most Countries). It is already proved by various studies and tests that in case of fi re it is worth to exhaust from the premises involved. Such advantages can be summarised in a few points:
1) The mechanical ventilation removes fumes and puts in depression the premise, thus preventing the diffusion of smoke into other rooms,
This creates better conditions for the escape of the occupants and simplify the job of the fi re brigates.
2) In case of closed premises, it is possible to easily exceed 1000° C, causing the combustion of any material just for heat radiation: a condition that would make useless any external extinguish operation. To keep the temperature relatively low (300°- 400° C) by extracting hot air, means to avoid the collapse of the support structures. In addition, the higher oxygen rate will cause a better combustion and thus, for most materials, a lower production of toxic smoke.
3) The mechanical ventilation allows the location of the exhaust outlets in places away from the one involved, being the CC-HT series easy to be connected to a duct system.
4) The mechanical ventilation allows the extraction of cold fumes, which, remaining at lower level, are extremely dangerous for the occupants and very diffi coult to be removed by static systems.
5) The mechanical ventilation through the CC-HT fans allows the ventilation of the premises also in normal activity situations (clean air), thanks to the possibility of fi tting double speed motors: at low speed for normal ventilation (so with lower noise level) and at high speed for emergency conditions. Obviuosly it is necessary to install the fan with a dedicated power line that automatically operates in case of fi re. The capability of the CC-HT range to work at 400°C for 2 hours, 300°C for 1 hour and 200°C for 2 hours is tested and certifi ed according to the European Directive EN 12101- 3 by an independent notifi ed body. The range has also been positively tested at 300°C for 2 hours in continuous running.

UPON REQUEST
• Performances upon request.
• Casing protected against the atmospheric agents by hot dip galvanizing.
• External terminal box.