Roof fan
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Roof fans Energy-efficient roof fans. Vertical, horizontal, diagonal discharge. VERTICAL OR HORIZONTAL DISCHARGE. Energy-saving EC centrifugal roof fans are available with diagonal or horizontal air discharge. The new standard range includes vertically discharging models from the VD series and horizontally discharging models from the RD series with high-performance centrigugal impellers, as well as specially adapted speedcontrollable AC motors in closed design. Perfectly matched accessories for the roof fans round off the integrated overall solution. With extremely weatherresistant polymer casing and optional Eco/Pro versions, DV EC is suitable for different applications. Roof fans The wide range of roof fans from Helios offers the optimal solution for every application. From 460 to 26 500 m³/h air flow volume, with motors inside or outside the air flow, horizontal, diagonal or vertical air discharge. In metal or polymer casing, for air flow temperatures of up to +70 °C, +120 °C and in temperature class F400 (120 min.) according to DIN 12101-3. DIAGONAL. HORIZONTAL. ENERGY-EFFICIENT.

Roof fans VD with vertical discharge Product-specific information This information supplements the "General technical information" and statements on the product pages. Common features in the VD and VDR types with vertical discharge. I Features As the exhaust air is discharged vertically, this has the following advantages: – Less harmful impact on the environment through contamination. – Minimised solids deposits on roofs, roof windows and skylights. – Reduction of potentially disruptive influences (e.g. smells, damp) on the adjacent building, windows, open hatches and chimneys or other...

Roof fans RD with horizontal discharge Product-specific information I RD design Robust design, largely corrosion-resistant and weatherresistant. Motor bedplate and base plate with stainless steel inlet nozzle. Casing made of aluminium resistant to sea water with built-in interference protection. In all types with explosion protection, the base plate is made of galvanised sheet steel with an aluminium inlet nozzle. Quiet operation thanks to vibration-damping motor suspension. Flat construction design. I Speed control Information on this can be found on the product pages and under the...

Roof fans RD EC and DV EC Product-specific information I RD EC range EC centrifugal fans with horizontal discharge for exhaust air operation. I Design Robust design, largely corrosion-resistant and weatherresistant. Base plate made of galvanised sheet steel. Rain hood and protective grille made of galvanised sheet steel, for nominal diameter 225 – 400 mm made of aluminium. Quiet operation thanks to vibration-damping motor suspension. Flat construction design. Rain hood with cover extending far above and below the fan offers effective protection against rainfall. I Motor External rotor...

Selection chart Roof fans VD, VDR and RD By combining the parameters of static pressure increase Dpfa, air flow . volume V, R.P.M. min-1, sound level at 4 m and impeller-diameter DN mm, Sound pressure intake LPA dB(A) the following table facilitates the selection of roof fans Ø 180 to 710. · Air flow volume V m3/h in relation to static pressure = N / m2 = freely available pressure (Dpfa) in Pa Roof fans

Selection chart Roof fans DV EC and RD EC By combining the parameters of static pressure increase Dpfa, air flow . volume V, R.P.M. min-1, sound level at 4 m and impeller-diameter DN mm, Sound pressure intake mm min-1 LPA dB(A) at 4 m Series DV EC – diagonal discharge 200 1810 50 the following table facilitates the selection of roof fans Ø 200 to 450. · Air flow volume V m3/h in relation to static pressure = N / m2 = freely available pressure (Dpfa) in Pa 0 50 Series RD EC – horizontal discharge 225 1850 51 315

Roof fans and installation accessories System configuration Centrifugal roof fan RD Horizontal discharge Affordable price-performance relationship. Horizontally discharging roof fan with efficiencyoptimised aluminium casing and newly developed high-performance centrifugal impeller. EC roof fans DV Diagonal discharge With energy-saving EC motor technology for lowest operating costs. Extremely weatherresistant, in polymer design. Optional in Pro version with integrated pressure control for maintaining constant air flow volume (without illustration). Centrifugal roof fans VD and VDR Vertical...

Saving * * with speed control I Extremely weather-proof diagonally discharging EC-roof fan from polymer for an extensive area of application. I Similarities DV EC Pro and DV EC Eco I Casing Aerodynamically designed casing from high-quality polypropylene in grey with diagonal air discharge direction. Air flow temperatures from – 30 to + 60 °C. I Impeller Diagonal impeller made from aluminium, the motor-impeller unit is dynamically balanced for low-noise operation. I Motor Optimised efficiency also with speed control for low operating costs. Stepless speed control. Ball bearing mounted,...

Frequency LWA Intake LWA Exhaust Hinged base attenuator Type SSD 200 Ref. no. 5290 With folding mechanism for easy inspection and cleaning. Flange connecting plate Type FAP 200 Ref. no. 8382 Made from galvanised sheet steel. Makes the connection of the duct system plus accessories to the roof fans DV EC possible, if no base attenuator SSD is used. Flat roof base Type FDS 200 Ref. no. 1378 With folding mechanism for easy inspection and cleaning. Counterflange Type DFR 200 Ref. no. 1201 Made from galvanised sheet steel, for intake duct connections. Roof mounting accessories 485 Ventilation...

Saving * * with speed control I Extremely weather-proof diagonally discharging EC-roof fan from polymer for an extensive area of application. I Electrical connection Standard external terminal box (protection to IP 65) on the casing. Connection voltage singlephase, 230 V, 50 Hz. I Similarities DV EC Pro and DV EC Eco I Casing Aerodynamically designed casing from high-quality polypropylene in grey with diagonal air discharge direction. Air flow temperatures from – 30 to + 60 °C. I Impeller Diagonal impeller made from aluminium, the motor-impeller unit is dynamically balanced for low-noise...