Type VSD35-3-AZ

Ventilation and extract ventilation combined in one casing

Slot diffusers with 35 mm nominal width, used as supply and extract air combination

  • Nominal length from 600 to 1200 mm, 3 slots
  • Volume flow rate range 8 – 40 l/s or 30 – 144 m³/h
  • Diffuser face made of extruded aluminium sections
  • For variable and constant volume flows
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Individually adjustable air control elements to meet individual local requirements


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Damper blade for volume flow rate balancing, can be adjusted through the diffuser face
  • Acoustic lining that ensures very good transmission loss
  • Spring clip fixing
  • End angles, fixing brackets

VSD35-3-AZ 00181308_0

Black air control elements

  • Application
  • Description

Application

  • Type VSD35-3-AZ slot diffusers are used as supply and extract air combinations in comfort zones
  • Angled one-way air discharge for turbulent flow (mixed flow ventilation)
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –10 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For horizontal installation into walls and bulkheads

Special characteristics

  • Individually adjustable air control elements to meet individual local requirements
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Diffuser face has been optimised for maximum volume flow rate at low sound power levels
  • Suitable for continuous linear arrangement

Nominal sizes

  • LN: 600, 750, 900, 1050, 1200 mm

Variants

  • VSD35-3-AZ-...: supply and extract air combination without acoustic lining (cross talk reduction)
  • VSD35-3-AZ-...-ZT: supply and extract air combination with acoustic lining (cross talk reduction)
  • VSD35-3-AZ-...: Black air control elements
  • VSD35-3-AZ-.../WW: White air control elements


Plenum box and diffuser face fixing

  • AK: Plenum box with rigid fixing
  • AS: Plenum box with spring clip fixing

Parts and characteristics

  • Diffuser face with individually adjustable air control elements
  • Plenum box for horizontal duct connection
  • Spring clip fixing (facilitates installing the diffuser face) or screw fixing

Attachments

  • Damper blade for volume flow rate balancing
  • End angles

Accessories

  • Lip seal
  • Fixing brackets

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

Materials and surfaces

  • Diffuser face made from extruded aluminium sections
  • Air control elements made of plastic, UL 94, V-0, flame retardant
  • Plenum box and fixing brackets made of galvanised sheet steel
  • End angle made of aluminium
  • Lip seal made of rubber
  • Acoustic lining of the cross-talk attenuator is mineral wool
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control elements similar to RAL 9005, black
  • WW: Air control elements similar to RAL 9010, white


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
  • Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

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Tel.: +39 029829741 | Fax: +39 029829760