DV EC 250 PRO – EC Roof Fan – Helios
The roof fan is ideal as an central extract air fan for multi-floor residential construction in accordance with DIN 18017-3. Integrated pressure control for constant volume flow control in the connected rooms through
automatic speed adjustment at almost constantly high efficiency.
PRODUCT PDF
RVS 400 - Helios - Back Draught Shutter
SSD 400 - Helios - Base Attenuator, Hingeable - (with Hinge Mechanism)
FM 500 - Helios - Flexible Sleeve
CRHB/4-225 N - Roof Mounted Fans (230V50/60HZ) - Soler & Palau 

