Systemair Prio AC / Prio EC – circular duct fans

The Systemair Prio AC / Prio EC circular fans are designed for direct installation into ductwork. The Systemair Prio AC / Prio EC fans have specially developed, aerodynamically optimized impellers and an external rotor motor. The speed of the Systemair Prio AC fans can be continuously controlled using a thyristor or a 5-step transformer. The speed of Systemair Prio EC fans can be easily adjusted using a built-in potentiometer or controlled via an external 0–10 V signal. The Systemair Prio AC / Prio EC fans for circular ductwork are equipped with motors featuring built-in thermal contacts with manual restart in accordance with EN 60335-2-80.

The airtight housing of the Systemair Prio AC / Prio EC fans (airtightness class C per EN 12237:2003) is made of a special composite material. The FK mounting clamp allows for easy installation and removal and dampens the transmission of vibrations to the ductwork. A mounting bracket is available as an accessory - it is not included in the delivery. When installing in a humid environment, we recommend installing an overrun timer.

Air-tight, compact casing made of composite material (diameter 150 to 250 mm), aluminium-zinc (diameter 315 to 400 mm), or galvanized steel sheet (diameter 450 to 500 mm). Thanks to a newly developed free-running plastic axial impeller with optimized airflow, Prio fans achieve the best SFP values in their class.