Systemair presents an expanded range of smoke extract roof fans which are designed for use in powered smoke and heat exhaust ventilating systems in the event of fire, and ventilating in normal conditions. Ventilated areas and emergency exits contribute to easier evacuation of people and equipment in the event of fire, and to faster and more efficient fire extinguishing; they protect the building structure and equipment against excessive temperatures and decrease fire escalation to the surrounding areas.
Main features:
- Casing made from aluminium
- Fire resistance of fans: 400C, 120 min;
- 7 different sizes from impeller diameter 315 up to 630;
- Installation on roofs over heated buildings;
- Horizontal outlet (DVG-H) or vertical outlet ( DVG-V );
- Daily ventilation of medium with temperature from -20 up to 120°C,
- Some of the electric motor have two speeds;
- Option: thermal contact built-in or PTC. If PTC is built-in (on request), in this case regulation via frequency converter is possible for daily ventilation only (25÷50Hz, S1 duty). On request: EMC shielded cable from electric motor to service switch;
- Tested 400°C / 120 min (F400) according to EN 12101-3
